CN112816657B

CN112816657B - Solid waste and pond sediment mechanical test equipment

Info

Publication number: CN112816657B
Application number: CN202011633532.0A
Authority: CN
Inventors: 潘永坚; 王华俊; 崔锦梅; 毛晓慧; 管仁秋
Original assignee: Zhejiang Engineering Survey And Design Institute Group Co ltd
Current assignee: Zhejiang Engineering Survey And Design Institute Group Co ltd
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2023-05-09
Anticipated expiration: 2040-12-31
Also published as: CN112816657A

Abstract

The application relates to a solid waste and pond sediment mechanical test equipment, belongs to soil detection technical field. The instrument is used for testing the strength parameter and the deformation parameter of the soil. The method is characterized by being suitable for mechanical tests of soil containing coarse particles, solid waste, pond residue and household garbage soil, and being safe and convenient to operate. The portable step piece is arranged between the electric direct shear device and the consolidation device; the shearing box of the electric direct shear apparatus comprises an upper shearing box and a lower shearing box which are stacked up and down, and a hoisting assembly is arranged on the shearing box; a first hook hole is formed in a material box of the consolidation apparatus, a first hook is arranged in the first hook hole, a second hook hole is formed in a pressure transmission plate of the consolidation apparatus, and a second hook is arranged in the second hook hole. The application has the effect that the sample is put into the detection equipment to detect the process more laborsaving and convenient.

Description

Solid waste and pond sediment mechanical test equipment

Technical Field

The application relates to the technical field of soil detection, in particular to a solid waste and pond dreg mechanical test device.

Background

Soil containing coarse particles is common, and the more important is the treatment and utilization of solid waste, pond residue and household garbage soil. Before building such as large-area construction sites of airports, harbor yards and general civil buildings, multidirectional mechanical tests are required to be carried out on foundation soil containing coarse particles, and the design and construction modes are determined through comprehensive consideration. Similarly, landfill of refuse landfill or other solid waste and construction of mine powder dams are also performed with mechanical tests on coarse-grained damming earth materials to determine the stacking height, landfill depth and the like, so as to ensure the safety of construction and use.

Similar to the mechanical test of soil, the mechanical test of solid waste and pond residue can also adopt similar equipment, but the components of solid waste, pond residue and the like are relatively mixed, the particles are large and small, and the detection technical requirements cannot be met by the existing detection equipment for detecting the homogeneous small soil sample. If the existing detection equipment for detecting the soil is simply amplified, the equipment is very large and cannot meet the requirements of manual operation and safety. Therefore, the mechanical test of the soil containing coarse particles (blocks), solid waste and household garbage soil needs to be carried out with reference to the original equipment, so as to meet the requirements of mechanical parameters of design and construction.

Aiming at the technical state of the art, the inventor determines the specification of a test container (charging barrel), the technical specification of test vertical loading equipment, the overall height of the equipment, the sample mounting process flow, related auxiliary equipment and the like according to the particle size and technical parameter requirements of the mechanical test of soil body, solid waste and household garbage, comprehensively considers the convenience and safety of operation through detailed calculation and analysis, and finally prepares the whole set of mechanical test equipment for solid waste and pond residue.

Disclosure of Invention

In order to meet the technical requirements of coarse-particle solid waste and pond dreg mechanical tests and enable the sample installation process to be more labor-saving and convenient, the application provides solid waste and pond dreg mechanical test equipment.

The application provides a solid waste and pond sediment mechanical test equipment adopts following technical scheme:

according to the technical scheme, the electric direct shear tester and the consolidation tester with larger sizes are redesigned, and the strength parameters and deformation parameters of solid wastes containing coarse particles, pond residues and household garbage soil can be tested. And the crane lifting device, the portable steps, the pulleys at the bottom of the instrument and other facilities are arranged, so that the purposes of convenient operation, safety and convenient moving are achieved.

The utility model provides a solid waste and pond sediment mechanical test equipment, includes driving, electronic direct shear apparatus and concretion appearance, the driving includes the portal frame and installs the walking hoisting accessory on the portal frame, the portal frame includes the slide rail and sets up the side support at the slide rail both ends, electronic direct shear apparatus with concretion appearance interval sets up in under the slide rail, be provided with portable step spare between electronic direct shear apparatus and the concretion appearance;

the shearing box of the electric direct shear apparatus comprises an upper shearing box and a lower shearing box which are stacked up and down, a hoisting assembly is arranged on the shearing box, the hoisting assembly comprises a locating pin column for fixing the upper shearing box and the lower shearing box, a hoisting rod and a lifting hook, two ends of the hoisting rod are fixed with screws of the shearing box, and the lifting hook is fixed on the hoisting rod;

the material box of the consolidation apparatus is provided with a first hook hole, a first hook is arranged in the first hook hole, the pressure transmission plate of the consolidation apparatus is provided with a second hook hole, and a second hook is arranged in the second hook hole.

Through adopting above-mentioned technical scheme, through amplifying electronic direct shear device and concretion appearance, thereby can detect the massive sample, thereby obtain more accurate detection data, through offer first couple hole and install first hanging hole on the magazine of concretion appearance, offer the second couple hole and install the second couple on the biography clamp plate, make magazine and biography clamp plate hoist and mount that carry out that can be convenient, set up hoisting assembly on shearing the box, thereby the hoist and mount of convenient shearing box, the driving of setting is used for the hoist and mount of magazine, biography clamp plate and shearing box, the driving, electronic direct shear device and concretion appearance form one set of mechanics detection setting, set up portable step piece between electronic direct shear device and concretion appearance, make things convenient for the operation and the use of electronic direct shear device and concretion appearance simultaneously.

Optionally, two first hook holes are symmetrically arranged around the axis of the material box by 180 degrees, two second hook holes are symmetrically arranged around the axis of the pressure transmission plate by 180 degrees;

the crane lifting device comprises a lifting assembly, the lifting assembly comprises two connecting plates and two rocker arms, the two connecting plates are arranged at intervals, the two rocker arms are arranged between the two connecting plates, one end of each rocker arm is connected with the connecting plates in a rotating mode, the other end of each rocker arm is provided with a lifting ring, the middle of each rocker arm is provided with a fixed hook, two fixing rods are arranged between the connecting plates, the two fixing hooks are fixed on the two fixing rods in one-to-one correspondence, and the two rocker arms are arranged in a mode that one ends of the lifting rings are in opposite hanging arrangement.

Through adopting above-mentioned technical scheme, through setting up two first couple holes, and two first couple hole symmetry settings, more stable when hanging the charging box, through setting up two second couple holes, and two second couple hole symmetry settings, more stable when making hoist and mount the pressure transmission board, because the installation nature of first couple and second couple, make the first couple can not influence the settling of pressure transmission board, reduce the installation and the dismantlement of first couple and second couple, the more adaptation, the lifting unit of setting, be used for hanging the charging box, pressure transmission board and shearing box, when the separation is rotated to two rocking arms of lifting unit, fixed through fixed hook and dead lever, make the rocking arm both ends set up in opposite directions, two first couples of two rings adaptation and two second couples of setting, thereby better hanging charging box and pressure transmission board, through taking down the fixed hook, make two rings rotate, two lifting hooks on the adaptation lifting unit can combine to use together, thereby the lifting unit of adaptation can two kinds of lifting modes of adaptation simultaneously, it is more convenient to make lifting unit.

Optionally, rings downward sloping sets up, works as the fixed hook does not collude and is fixed in on the dead lever, two the rocking arm butt each other, two the rings are kept away from the one end butt each other of rocking arm, one set up the jack on the rings, another be provided with the spliced pole on the rings, the spliced pole cartridge in the jack.

Through adopting above-mentioned technical scheme, rings downward sloping sets up for when first couple and second couple are fixed on rings, more stable, be difficult to the drunkenness, when two rocking arms butt each other, two rings are symmetrical each other along vertical direction to the power of lifting hook, make the lifting hook collude more stably when linking in two rings, two rings pass through the cooperation of spliced pole and jack, the convenient is fixed, make two rocking arms keep the state of butt, rings are more stable when lifting up the shear box.

Optionally, still include the material loading subassembly, the material loading subassembly includes storage bucket and string rope, the storage bucket includes stack shell and bottom plate, two connecting holes have been seted up on stack shell upper portion, two the connecting hole is followed stack shell circumference 180 degrees rotational symmetry sets up, string rope both ends one-to-one passes two the connecting hole is binded fixedly, string rope middle part is provided with the connecting hook, the slide hole has been seted up to stack shell lower part, the bottom plate slides and wears to locate in the slide hole and shutoff the opening of stack shell downside.

Through adopting above-mentioned technical scheme, set up the material loading subassembly, make shearing box and magazine also can carry out the installation of sample under the condition of not taking off, it is more convenient, the storage bucket is used for installing the sample, hang the rope and hang the coupling hook at rope middle part, make the storage bucket transport through hoisting accessory, it is more laborsaving convenient, the slide opening is seted up to the storage bucket lower part and a bottom plate is worn to establish in the slip, make the sample settle in the storage bucket, when the storage bucket transports shearing box top or magazine top, through the roll-off bottom plate, the sample can be sent into from the storage bucket in shearing box and the magazine, the sample transportation is convenient, be applicable to and detect for the first time, the sample that does not have to detect in shearing box and the magazine does not need hoist and mount repeatedly, it is more convenient.

Optionally, the device further comprises a sealing plate, a caulking groove is formed in the bottom of the material box, an annular convex box with an upper side opening is embedded in the caulking groove, a guard ring is arranged on the annular convex box, the lower portion of the guard ring is sleeved outside the annular convex box and is detachably connected with the annular convex box, a sample cavity is formed in the shearing box, the inner diameter of the sample cavity is equal to the inner diameter of the guard ring, and when the sealing plate is placed on the guard ring, the sealing plate can cover the guard ring to be far away from one side opening of the annular convex box.

Through adopting above-mentioned technical scheme, the shroud ring forms a detection space with the protruding box of annular, supply the sample installation, annular protruding box is owing to can follow in the magazine and take out, and dismantle between the protruding box of shroud ring and annular, make the sample can be convenient take out in the magazine and change, simultaneously when consolidation appearance and electronic direct shear appearance adopt same vertical load to test, soil sample that carries out the test through consolidation appearance earlier can be used for detecting in the electronic direct shear appearance again, seal the shroud ring through the shrouding and keep away from the one side opening of the protruding box of annular, back-off shroud ring and the protruding box of annular is on shearing the box, take out the shrouding, can send into the sample in the shearing box, realize two kinds of detections of a sample.

Optionally, be provided with between the shroud with the protruding box of annular and dismantle coupling assembling, it has two to dismantle coupling assembling, two can dismantle coupling assembling is followed 180 degrees rotational symmetry settings in shroud circumference, it includes spacing post, first stop collar and second stop collar to dismantle coupling assembling, the hole of sliding has been seted up on the shroud, the annular is protruding box lateral wall has seted up the spacing hole coaxial with the hole of sliding, the hole of sliding is the shoulder hole and is close to the one end aperture of spacing hole is great, the spacing post slides and wears to locate in the hole of sliding, first stop collar suit in the spacing post is close to on the one end of spacing hole, the second stop collar suit in the spacing post is kept away from the one end of spacing hole.

Through adopting above-mentioned technical scheme, through promoting the second stop collar to promote the spacing post and slide in the downthehole sliding, the spacing post drives first stop collar and slides into the spacing downthehole, thereby realizes the fixed between annular protruding box and the shroud ring, takes out the back of shroud ring and the annular protruding box, can pull out first stop collar from the spacing downthehole through the second stop collar, makes annular protruding box and shroud ring separation, the reinstallation of annular protruding box and shroud ring of being convenient for.

Optionally, still include the impeller, the impeller includes push rod, branch pole and catch bar, push rod one end with the branch pole middle part is fixed, the catch bar divides to establish the both ends of branch pole, second stop collar lateral wall is provided with first guide surface, the catch bar is kept away from the one end of branch pole is provided with the second guide surface, the second guide surface can with first guide surface laminating.

Through adopting above-mentioned technical scheme, set up the connecting assembly can be dismantled in impeller adaptation, make things convenient for the connection between grommet and the protruding box of annular to fix, the impeller promotes branch, divides branch and promotes two push rods and move together again, and two push rods correspond two and dismantle connecting assembly, and the second guide surface on the push rod cooperates with the first guide surface on the second stop collar to drive spacing post axial motion through the axial motion of push rod.

Optionally, the protruding box lateral wall of annular has seted up first constant head tank, grommet lower part inside wall is provided with first location sand grip, first location sand grip slide install in the first constant head tank, the second constant head tank has been seted up to the grommet lateral wall, the catch bar outer wall is provided with the second location sand grip, the second location sand grip slide install in the second constant head tank.

Through adopting above-mentioned technical scheme, the protruding cooperation of first constant head tank and the first location of seting up for the shroud ring is installed with annular protruding box location, and the hole that slides corresponds with spacing hole, and first stop collar can correspond with spacing hole, thereby simplifies the installation of shroud ring, does not need the mounted position of adjustment shroud ring repeatedly, and the protruding cooperation of second location and the second constant head tank of setting makes the impeller axial displacement to certain position, and the second guide surface on the impeller rod can be laminated with the second guide surface on the second stop collar, makes the impeller more convenient when using, and the impeller can only install the space between certain position plug-in magazine and the shroud ring.

Optionally, the first mounting bracket of electronic direct shear appearance with all be provided with brake truckle and altitude mixture control subassembly under the second mounting bracket of consolidation appearance, altitude mixture control subassembly includes regulation pole, base and shakes the handle, first mounting bracket down with all vertically set up the screw thread regulation hole under the second mounting bracket, adjust the pole and wear to locate in the screw thread regulation hole and screw thread fixed, the base is fixed in adjust pole one end, shake the handle set up in adjust the pole other end and with adjust pole mutually perpendicular.

Through adopting above-mentioned technical scheme, through set up a plurality of brake truckles under first mounting bracket and second mounting bracket, make two instruments carry that can be convenient and move, brake truckle can brake again and fix, make to move and accomplish the back two instruments and can be better in the place keep stable, set up a plurality of altitude mixture control subassemblies on the first mounting bracket and the second mounting bracket, on the one hand, prop up first mounting bracket and second mounting bracket through altitude mixture control subassembly, make brake truckle off the ground, first mounting bracket and second mounting bracket can be more stable, on the other hand, a plurality of altitude mixture control subassemblies pass through altitude mixture control, make the shearing box of first mounting bracket on and the magazine on the second mounting bracket can keep higher levelness, better guarantee the degree of accuracy of detection data.

Optionally, the portable step piece comprises a bottom frame, a supporting rod and a plurality of step plates, wherein the bottom frame is formed by fixing four connecting rods end to end, the plurality of supporting rods are vertically arranged, the lower ends of the plurality of supporting rods are fixed with the fixed upper ends of the bottom frame and the step plates, and the plurality of step plates are sequentially lifted;

the first mounting frame comprises a first working plate, first supporting legs and first connecting rods, wherein the first supporting legs are vertically arranged and are respectively arranged at four corners of the first working plate, two first connecting rods are arranged, one first connecting rod corresponds to the two first supporting legs and is fixed, the other first connecting rod corresponds to the other two first supporting legs and is fixed, and two ends of the first connecting rod are arranged in a cantilever mode in a direction away from the first supporting legs;

The second mounting frame comprises a second working plate, second supporting legs and second connecting rods, wherein the second supporting legs are vertically arranged and are respectively arranged at four corners of the second working plate, two second connecting rods are arranged, one second connecting rod is fixed with the two second supporting legs, the other second connecting rod is fixed with the other two second supporting legs, and two ends of each second connecting rod are arranged in a cantilever mode in a direction away from the second supporting legs;

the two ends of each first connecting rod and the two ends of each second connecting rod are respectively provided with a height adjusting assembly, and the distance between the two first connecting rods is consistent with the distance between the two second connecting rods.

Through adopting above-mentioned technical scheme, portable step piece can erect the connecting rod of width direction both sides on first mounting bracket and second mounting bracket, it is correlated with first mounting bracket and second mounting bracket through portable step piece, simultaneously fix portable step piece again between first mounting bracket and second mounting bracket, the transport of portable step piece of being convenient for, the regulation pole of the altitude mixture control subassembly of one side in opposite directions on the first mounting bracket and the second mounting bracket is located the bottom frame, make no matter first mounting bracket remove or the second mounting bracket remove, it removes to drive portable step piece to tend to drive portable step piece, portable step piece drives the first mounting bracket of opposite side or second mounting bracket remove again, electric direct shear instrument and consolidation appearance and portable step piece can carry together conveniently, interval between two head rods is unanimous with interval between two second connecting rods, make the bearing capacity symmetry that the bottom frame received, portable step piece is placed more stably, the force that the connecting rod applyed to the regulating rod, and the force that the connecting rod applyed can reach same direction, the transmission of force is more steady during the transport.

In summary, the present application includes at least one of the following beneficial technical effects:

1. the electric direct shear device and the consolidation device are enlarged, so that a large sample can be detected, more accurate detection data can be obtained, a first hanging hole is formed in a material box of the consolidation device, a first hanging hole is arranged, a second hanging hole is formed in a pressure transmission plate, and a second hanging hook is arranged, so that the material box and the pressure transmission plate can be conveniently hoisted, a hoisting component is arranged on the shearing box, the hoisting of the shearing box is convenient, the arranged travelling crane is used for hoisting the material box, the pressure transmission plate and the shearing box, the travelling crane, the electric direct shear device and the consolidation device form a set of mechanical detection arrangement, a portable step piece is arranged between the electric direct shear device and the consolidation device, and meanwhile, the operation and the use of the electric direct shear device and the consolidation device are convenient;

2. the first hooks are symmetrically arranged, so that the loading box is more stable when being hung, the second hooks are symmetrically arranged, the pressure transmitting plate is more stable when being hung, the first hooks are not influenced by the arrangement of the pressure transmitting plate due to the arrangement property of the first hooks and the second hooks, the installation and the disassembly of the first hooks and the second hooks are reduced, the lifting assembly is more adaptive, the loading box, the pressure transmitting plate and the shearing box are hung, when the two rocker arms of the lifting assembly are rotationally separated, the two lifting rings are adaptive to the two first hooks and the two second hooks, the loading box and the pressure transmitting plate are better hung, the two lifting rings are combined together for use, so that the lifting hooks on the lifting assembly are adaptive, the lifting rings are obliquely arranged downwards, so that the first hooks and the second hooks are more stable when being fixed on the lifting rings, and are not easy to move, and when the two rocker arms are mutually abutted, the forces of the two lifting rings on the lifting hooks are mutually symmetrical along the vertical direction, so that the lifting hooks are more stable when being hooked in the two lifting rings;

3. Through set up a plurality of brake truckles under first mounting bracket and second mounting bracket for two instruments can be convenient carry and move, the brake truckle can brake again fixedly, prop up first mounting bracket and second mounting bracket through setting up altitude mixture control subassembly, make the brake truckle leave the ground, first mounting bracket and second mounting bracket can be more stable, on the other hand, a plurality of altitude mixture control subassemblies pass through altitude mixture control, make the shearing box of first mounting bracket on-mounting and the magazine on the second mounting bracket can keep higher levelness, the degree of accuracy of better guarantee detection data, portable step piece cooperates with the regulation pole, can carry electric direct shear appearance, consolidation appearance and portable step piece, the three can be convenient together.

Drawings

FIG. 1 is a schematic diagram of an embodiment of the present application;

FIG. 2 is a schematic structural view of an electric direct shear apparatus;

FIG. 3 is an enlarged view at A in FIG. 2;

FIG. 4 is a cross-sectional view of a first vertical loading device in a state of pressing a sample in a shear box;

FIG. 5 is a schematic structural view of a consolidation apparatus;

FIG. 6 is an enlarged view at B in FIG. 5;

FIG. 7 is a cross-sectional view of the sample assembly;

FIG. 8 is a schematic structural view of a sample assembly;

FIG. 9 is a cross-sectional view of the annular cam, grommet, and pusher;

fig. 10 is an enlarged view at C in fig. 9;

FIG. 11 is a schematic view of the structure of the annular flange, shroud ring, hanger and closure plate;

FIG. 12 is an exploded view of the loading assembly;

FIG. 13 is a schematic view of the connection of the hoisting means to the winding rope;

FIG. 14 is a schematic structural view of a lifting assembly;

FIG. 15 is a schematic view of the portable step member;

FIG. 16 is a schematic illustration of the use of an electric direct shear apparatus, a consolidation apparatus, and a portable step;

fig. 17 is an enlarged view at D in fig. 16.

Reference numerals illustrate: 1. driving; 11. a slide rail; 12. a side bracket; 13. winding up a winding drum; 14. winding the rope; 15. a connecting plate; 16. a pulley; 17. a fixed hook; 18. a fixed rod; 19. a rocker arm; 191. a hanging ring; 1911. inserting a column; 1912. a jack; 2. an electric direct shear apparatus; 211. a first work plate; 212. a first support leg; 213. a first connecting rod; 214. a first reinforcing rod; 22. a driving device; 23. a vertical loading device; 24. a shear box; 241. an upper shear box; 2411. an upper sample chamber; 242. a lower shear box; 2421. a lower sample chamber; 243. a sample chamber; 251. positioning pin posts; 252. hoisting a rod; 253. a lifting hook; 26. a liquid receiving box; 261. a liquid receiving cavity; 27. a pressure sensor; 28. a permeable stone; 29. a pressurizing plate; 3. a consolidation device; 311. a second work plate; 312. a second support leg; 313. a second connecting rod; 314. a second reinforcing rod; 315. a third reinforcing rod; 32. a vertical pressurization assembly; 33. a sample assembly; 331. a magazine; 3311. a caulking groove; 3312. a first hook hole; 3313. a first hook; 332. a guard ring; 3321. a first positioning convex strip; 3322. a slip hole; 3323. a second positioning groove; 3331. a limit column; 3332. a first stop collar; 3333. the second limit sleeve; 3334. a first guide surface; 334. a pressure transmitting plate; 3341. a second hook hole; 3342. a second hook; 335. an annular convex box; 3351. a first positioning groove; 3352. a limiting hole; 34. a dial indicator; 4. a feeding assembly; 41. a barrel body; 411. a connection hole; 412. a slide hole; 42. hanging ropes; 43. a connecting hook; 44. a bottom plate; 5. a sealing plate; 6. a pushing member; 61. a push rod; 62. a branch rod; 63. a push rod; 631. a second guide surface; 632. second positioning convex strips; 7. a hanging piece; 71. a vertical boom; 72. a horizontal boom; 73. a hook; 8. a portable step; 81. a connecting rod; 82. a support rod; 83. a step plate; 91. braking casters; 92. a height adjustment assembly; 921. an adjusting rod; 922. a base; 923. shaking the handle; 924. a threaded adjustment hole; 925. a slip adjustment aperture; 926. and a limit sleeve.

Detailed Description

The present application is described in further detail below in conjunction with figures 1-17.

The embodiment of the application discloses a solid waste and pond sediment mechanical test equipment. Referring to fig. 1, the solid waste and pond sediment mechanical test equipment, including driving 1, electronic direct shear device 2, concretion appearance 3, material loading subassembly 4, shrouding 5, pushing piece 6, hang piece 7 and portable step 8, driving 1 includes portal frame and walking hoisting accessory, the portal frame includes slide rail 11 and sets up in the side support 12 that slide rail 11 both ends are used for supporting, walking hoisting accessory slides and installs on slide rail 11, electronic direct shear device 2 and concretion appearance 3 interval set up under slide rail 11, portable step 8 is located between electronic direct shear device 2 and concretion appearance 3, material loading subassembly 4, shrouding 5, hang piece 7 and pushing piece 6 are placed by portable step, be convenient for take.

Referring to fig. 2, the electric direct shear apparatus 2 includes a first mounting frame, a driving device 22, a vertical loading device 23, a shear box 24, a lifting assembly, a liquid receiving box 26, and a pressure sensor 27, which are disposed on the first mounting frame.

Referring to fig. 2, the first mounting frame includes a first working plate 211, first supporting legs 212, first connecting rods 213 and first reinforcing rods 214, the first supporting legs 212 are vertically arranged and are respectively arranged at four corners of the first working plate 211, two first connecting rods 213 are arranged, one first connecting rod 213 corresponds to two first supporting legs 212 and is welded and fixed with the first supporting legs 212, the other first connecting rod 213 corresponds to two other first supporting legs 212 and is welded and fixed with the first supporting legs 212, two first reinforcing rods 214 are arranged, two ends of each of the two first reinforcing rods 214 uniformly correspond to one first connecting rod 213 and are welded and fixed with each other, an interval is arranged between an end of each first connecting rod 213 and an end of each first supporting leg 212, and two ends of each first connecting rod 213 are cantilevered and arranged in a direction away from each first supporting leg 212.

Referring to fig. 2 and 3, a brake caster 91 is mounted on the side walls of two ends of the two first connecting rods 213, meanwhile, a height adjusting assembly 92 is mounted on the side walls of two ends of the two first connecting rods 213, the height adjusting assembly 92 comprises an adjusting rod 921, a base 922 and a shaking handle 923, a threaded adjusting hole 924 is vertically formed in the first connecting rods 213, the adjusting rod 921 is arranged in the threaded adjusting hole 924 in a penetrating manner and is in threaded fixation, the base 922 is fixed at one end of the adjusting rod 921, a sliding adjusting hole 925 is horizontally formed in the other end of the adjusting rod 921, the shaking handle 923 is arranged in the sliding adjusting hole 925 in a sliding manner, and limiting sleeves 926 are sleeved at two ends of the shaking handle 923, so that the shaking handle 923 can be slidably adjusted, and the shaking handle 923 can drive the adjusting rod 921 to rotate in a more labor-saving manner and is not easy to fall off.

Referring to fig. 2 and 4, the liquid receiving box 26 is slidably installed on the first working plate 211, the liquid receiving box 26 is provided with a liquid receiving cavity 261 with an opening at the upper side, the shear box 24 is installed in the liquid receiving cavity 261, the shear box 24 comprises an upper shear box 241 and a lower shear box 242 which are stacked up and down, the lower shear box 242 is fixed with the liquid receiving box 26 by screws, the upper shear box 241 is provided with an upper sample cavity 2411 penetrating up and down, the lower shear box 242 is provided with a lower sample cavity 2421 penetrating up and down, and when the upper shear box 241 and the lower shear box 242 are stacked up and down, the upper sample cavity 2411 and the lower sample cavity 2421 form a sample cavity 243 for mounting soil samples.

Referring to fig. 2 and 4, the vertical loading device 23 is partially located at the lower portion of the first working plate 211 and is located on the working plate, the vertical loading device 23 is used for applying a vertical load to a sample in the test chamber, when the sample is pressurized, one permeable stone 28 is respectively installed on the upper and lower sides of the sample chamber 243, a space between the two permeable stones 28 is used for installing the sample, and a pressurizing plate 29 for transmitting a vertical force applied by the vertical loading device is installed on the permeable stone 28 located on the upper side.

Referring to fig. 2 and 4, when it is required to hoist the shear box 24 and the liquid receiving box 26 to the first working plate 211, a hoist assembly is mounted on the shear box 24, the hoist assembly includes two positioning pins 251, a hoist rod 252 and a hook 253, the two positioning pins 251 are rotationally symmetrically arranged around the axis of the shear box 24, and the upper shear box 241 and the lower shear box 242 are fixed by threading the two positioning pins 251 through the upper shear box 241 and driving into the lower shear box 242.

Referring to fig. 2, a lifting rod 252 passes through the axis of the sample chamber 243, both ends of the lifting rod 252 are screw-fixed to the upper shear box 241, and a hook 253 is fixed to the middle of the lifting rod 252.

Referring to fig. 2 and 4, the driving device 22 is mounted at the beginning end of the sliding direction of the liquid receiving box 26, the pressure sensor 27 is mounted at the end of the sliding direction of the liquid receiving box 26 and is in contact with the upper shearing box 241, the upper shearing box 241 protrudes out of the liquid receiving cavity 261, the driving device 22 drives the liquid receiving box 26 to slide, so that the lower shearing box 242 is driven to slide towards the pressure sensor 27 relative to the upper shearing box 241, and the upper shearing box 241 is in contact with the pressure sensor 27, so that the shearing force is measured.

Referring to fig. 5, the consolidation apparatus 3 includes a second mounting bracket and a vertical pressurization assembly 32, a sample assembly 33 and a dial gauge 34 for detecting displacement mounted on the second mounting bracket.

Referring to fig. 5, the second mounting frame includes a second working plate 311, second supporting legs 312, second connecting rods 313, second reinforcing rods 314 and third reinforcing rods 315, the second supporting legs 312 are vertically arranged and are respectively arranged at four corners of the second working plate 311, two second connecting rods 313 are arranged at intervals, two second reinforcing rods 314 are arranged at intervals along the length direction of the second connecting rods 313, two ends of the second reinforcing rods 314 are in one-to-one correspondence with opposite side walls of the two second connecting rods 313 in a welded manner, the third reinforcing rods 315 are located between the two second connecting rods 313, two ends of the third reinforcing rods 315 are in one-to-one correspondence with opposite side walls of the two second reinforcing rods 314 in a welded manner, one second connecting rod 313 corresponds to the two second supporting legs 312 and is in welded fixation with the second supporting legs 312, the two second reinforcing rods 314 correspond to the other two second supporting legs 312, and the lower ends of the second supporting legs 312 are welded with the long side walls of the positions of the first reinforcing welded third reinforcing rods 315 in a one-to-one correspondence manner.

Referring to fig. 5 and 6, a brake caster 91 is installed on the side walls at two ends of two second connecting rods 313, meanwhile, a height adjusting assembly 92 is installed on the side walls at two ends of two second connecting rods 313, the end portions of the second connecting rods 313 are overhanging and arranged in a direction away from the second reinforcing rods 314, the height adjusting assembly 92 has enough space to adjust, the height adjusting assembly 92 comprises an adjusting rod 921, a base 922 and a shaking handle 923, a threaded adjusting hole 924 is vertically formed in the second connecting rods 313, the adjusting rod 921 is arranged in the threaded adjusting hole 924 in a penetrating mode and is fixed in a threaded mode, the base 922 is fixed at one end of the adjusting rod 921, a sliding adjusting hole 925 is horizontally formed in the other end of the adjusting rod 921, the shaking handle 923 is arranged in the sliding adjusting hole 925 in a sliding mode, and limiting sleeves 926 are sleeved at two ends of the shaking handle 923, so that the shaking handle 923 can be slidably adjusted, and the shaking handle 923 can be driven to rotate in a labor-saving mode and is not easy to drop.

Referring to fig. 5, the specimen assembly 33 is disposed on the second working plate 311 for holding the specimen, the vertical compression assembly 32 is partially disposed on the second working plate 311 for applying a vertical force to the specimen in the specimen assembly 33, and the dial gauge 34 is disposed above the vertical compression assembly 32 for measuring a displacement of the portion of the vertical compression assembly 32 disposed on the second working plate 311, thereby measuring a compression amount of the specimen.

Referring to fig. 7, the sample assembly 33 includes a cartridge 331, a protection ring 332, a permeable stone 28 and a pressure transmitting plate 334, a caulking groove 3311 is formed in the bottom of the cartridge 331, an annular convex box 335 with an opening at the upper side is embedded in the caulking groove 3311, the protection ring 332 is arranged on the annular convex box 335, the lower part of the protection ring 332 is sleeved on the annular convex box 335, the inner diameter of a sample cavity 243 of the shear box 24 is equal to the inner diameter of the protection ring 332, two permeable stones 28 are respectively arranged in the protection ring 332, the permeable stone 28 positioned at the lower side of the protection ring 332 is installed in the annular bulge, a cavity between the two permeable stones 28 is used for filling samples, the pressure transmitting plate 334 is positioned at the upper side of the protection ring 332 and is abutted against the permeable stone 28 positioned at the upper side, the pressure transmitting plate 334 is used for transmitting vertical force transmitted by the vertical pressurizing assembly 32, and the pressure transmitting plate 334 can slide into the protection ring 332 to squeeze the permeable stone 28.

The annular convex box 335 is provided with a first positioning groove 3351 on the outer side wall, the inner side wall of the lower part of the retaining ring 332 is provided with a first positioning convex strip 3321, and the first positioning convex strip 3321 is slidably installed in the first positioning groove 3351 to realize positioning installation between the retaining ring 332 and the annular convex box 335.

Referring to fig. 8, two first hook holes 3312 are formed in the material box 331, the two first hook holes 3312 are rotationally symmetrical along the circumferential direction 180 degrees of the material box 331, first hooks 3313 are fixed in the two first hook holes 3312 in a threaded manner, two second hook holes 3341 are formed in the pressure transmitting plate 334, the two second hook holes 3341 are rotationally symmetrical along the circumferential direction 180 degrees of the pressure transmitting plate 334, and second hooks 3342 are fixed in the two second hook holes 3341 in a threaded manner.

Referring to fig. 9 and 10, the shroud ring 332 and the annular protruding box 335 are connected and fixed through two detachable connection components, the two detachable connection components are rotationally symmetrically arranged along the circumference of the shroud ring 332 by 180 degrees, the detachable connection components comprise a limit post 3331, a first limit sleeve 3332 and a second limit sleeve 3333, a sliding hole 3322 is formed in the shroud ring 332, a limit hole 3352 coaxial with the sliding hole 3322 is formed in the outer side wall of the annular protruding box 335, the sliding hole 3322 is a stepped hole, the aperture of one end, close to the limit hole 3352, of the limit post 3331 is larger, the limit post 3331 is slidably arranged in the sliding hole 3322, the first limit sleeve 3332 is sleeved on one end, close to the limit hole 3352, of the limit post 3331, the first limit sleeve 3332 can be slidably arranged in a larger inner diameter portion of the sliding hole 3322, and the limit hole 3352, the diameter of the first limit sleeve 3332 is larger than the minimum diameter of the sliding hole 3322, the limit post 3331 is completely pulled out of the sliding hole 3322, the second limit sleeve 3331 is arranged at one end, far from the limit post 3352, of the limit post 3331 is far from the limit post 3352, and a guide surface is arranged on the outer side wall of the second limit sleeve 3334.

Referring to fig. 9 and 10, the pushing member 6 is configured to push the second stop collars 3333 of the two detachable connection assemblies to slide into the stop holes 3352, the pushing member 6 includes a push rod 61, a branch rod 62 and two pushing rods 63, the axis of the push rod 61 is perpendicular to the axis of the branch rod 62, one end of the push rod 61 is integrally fixed with the middle of the branch rod 62, the axes of the two pushing rods 63 are parallel to the axis of the push rod 61, the two pushing rods 63 are integrally fixed at two ends of the branch rod 62, a second guide surface 631 is disposed at one end of the pushing rod 63 away from the branch rod 62, and the second guide surface 631 can be attached to the first guide surface 3334.

Referring to fig. 9, the opposite side walls of the two pushing rods 63 are provided with second positioning convex strips 632, the outer side wall of the guard ring 332 is vertically provided with two second positioning grooves 3323, and the two second positioning convex strips 632 are slidably installed in the two second positioning grooves 3323 in a one-to-one correspondence manner.

Referring to fig. 10 and 11, the hanger 7 includes two vertical booms 71, a horizontal boom 72 and hooks 73, the two vertical booms 71 are respectively provided at both ends of the horizontal boom 72 and are integrally fixed, the axes of the two vertical booms 71 are parallel to each other and perpendicular to the axis of the horizontal boom 72, the hooks 73 are three, the three hooks 73 are respectively provided at one end of the two vertical booms 71 away from the horizontal boom 72 and at the middle of the horizontal boom 72, the hooks 73 provided at the horizontal boom 72 are extended toward the side away from the vertical boom 71, the hooks 73 provided at the vertical boom 71 are extended toward the side away from the horizontal boom 72, and the guard ring 332 and the annular convex box 335 can be conveniently taken out from the material box 331 by hooking the hooks 73 on the two vertical booms 71 onto the limiting posts 3331 and holding the guard ring 332.

Referring to fig. 11, when the sealing plate 5 is used for sealing, and the sealing plate 5 is placed on the shroud ring 332, the sealing plate 5 can cover the opening on one side of the shroud ring 332 away from the annular convex box 335, the shroud ring 332 and the annular convex box 335 can rotate around the limit post 3331180 under the action of gravity, the sample can not fall through the sealing plate 5, the shroud ring 332, the annular convex box 335 and the seal are carried onto the shear box 24 together, the sealing plate 5 is attached to the shear box 24, and the sample in the shroud ring 332 can be sent into the shear box 24 by moving out of the sealing plate 5.

Referring to fig. 12, the feeding assembly 4 includes a charging barrel and a hanging rope 42, the charging barrel includes a cylindrical barrel 41 and a bottom plate 44 which are vertically penetrated, two connecting holes 411 are formed in the upper portion of the barrel 41, the two connecting holes 411 are symmetrically arranged along the circumferential direction 180 degrees of the barrel 41, two ends of the hanging rope 42 pass through the two connecting holes 411 in a one-to-one correspondence manner and are bound and fixed, a connecting hook 43 is fixed in the middle of the hanging rope 42, a sliding hole 412 is formed in the lower portion of the barrel 41, the sliding hole 412 extends 180 degrees along the circumferential direction of the barrel 41 and penetrates through the side wall of the barrel 41, and the bottom plate 44 slides and penetrates through the sliding hole 412 and seals an opening of one side of the barrel 41 far away from the hanging rope 42.

Referring to fig. 1 and 13, the crane lifting device comprises a trolley and a lifting assembly which are slidably arranged on a sliding rod, a winding drum 13 driven by a motor is arranged on the trolley, a winding rope 14 is wound on the winding drum 13, and the winding tail end is fixed with the trolley.

Referring to fig. 13 and 14, the lifting assembly includes two connection plates 15, pulleys 16, fixing hooks 17, fixing rods 18 and swing arms 19, the two connection plates 15 are spaced apart and fixed to each other, the pulleys 16 are located between the two connection plates 15, the two swing arms 19 are located between the two connection plates 15, the pulleys 16 are located on the upper sides of the two swing arms 19, the tail ends of the winding ropes 14 are fixed on the trolley by bypassing the pulleys 16, one ends of the two swing arms 19 are rotatably connected with the two connection plates 15, the other ends of the swing arms 19 are fixed with hanging rings 191, the two fixing hooks 17 are respectively arranged at the middle parts of the two swing arms 19, the two fixing rods 18 are respectively arranged at the two fixing hooks 17, the two fixing rods 18 are located between the two connecting plates 15, the two fixing rods 18 are respectively provided with two sides of the pulley 16, the two fixing hooks 17 are fixed on the two fixing rods 18 in a one-to-one correspondence mode, at this time, one ends of the two hanging rings 19, which are provided with hanging rings 191, are oppositely hung, the hanging rings 191 are arranged in a downward inclined mode, when the fixing hooks 17 are not hooked and fixed on the fixing rods 18, the two hanging rings 19 are in butt joint with each other, one ends of the two hanging rings 191, which are far away from the hanging rings 19, are in butt joint with each other, the jack 1912 is formed in one hanging ring 191, the inserting column 1911 is arranged on the other hanging ring 191, and the inserting column 1911 is inserted into the jack 1912, so that fixation between the two hanging rings 191 is achieved.

Referring to fig. 15, the portable step 8 includes a bottom frame, a support bar 82 and a plurality of step plates 83, the bottom frame is formed by fixing four connection bars 81 end to end, the support bar 82 has a plurality of and sets up on two connection bars 81 of bottom frame width direction, a plurality of support bars 82 vertical setting and lower extreme are fixed with the step plates 83 with connection bars 81 fixed upper end, a plurality of support bars 82 lengthen gradually along connection bars 81 length direction, and the support bars 82 of bottom frame width direction both sides lengthen gradually along same direction for a plurality of step plates 83 are raised in proper order along the same direction and set up, support step plates 83 through support bars 82.

Referring to fig. 16 and 17, the distance between the adjusting lever 921 and the adjacent first support leg 212 or second support leg 312 is enough for the two connection rods 81 of the bottom frame width direction to be placed, and the distance between the two first connection rods 213 coincides with the distance between the two second connection rods 313.

The implementation principle of the solid waste and pond dreg mechanical test equipment provided by the embodiment of the application is as follows: the shearing box 24, the sample assembly 33, the feeding assembly 4 and the hanging piece 7 after hooking the fixed guard ring 332 can be matched and hung through the hanging assembly, wherein the hanging assembly can be used for hanging the sample assembly 33 when the fixed hook 17 on the rocker arm 19 of the hanging assembly is hooked and fixed with the fixed rod 18, when the fixed hook 17 on the rocker arm 19 of the hanging assembly is not hooked and fixed with the fixed rod 18, the two hanging rings 191 are mutually fixed, the shearing box 24, the feeding assembly 4 and the hanging piece 7 can be hung, a sample can be filled in a charging bucket during initial test, the charging bucket is hung through the crane 1, the sample in the charging bucket is filled in the guard ring 332 for test, then the guard ring 332 and the annular convex box 335 are fixed through the pushing piece 6, the guard ring 332 and the annular convex box 335 are hung together through the hanging piece 7, 5 is covered on the guard ring 332, the sample in the guard ring 332 is placed in the shearing box 24, the test with vertical load is carried out, the hanging assembly is installed, the crane 1 is hung on the crane 1, the crane 331 is placed on the ground, and then the crane 331 can be replaced, and the test can be continued after the crane 1 is carried out.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims

1. The utility model provides a solid waste and pond sediment mechanical test equipment which characterized in that: the portable direct shear device comprises a traveling crane (1), an electric direct shear device (2) and a consolidation device (3), wherein the traveling crane (1) comprises a portal frame and a traveling lifting device arranged on the portal frame, the portal frame comprises a sliding rail (11) and side supports (12) arranged at two ends of the sliding rail (11), the electric direct shear device (2) and the consolidation device (3) are arranged under the sliding rail (11) at intervals, and a portable step piece (8) is arranged between the electric direct shear device (2) and the consolidation device (3);

the shearing box (24) of the electric direct shear apparatus (2) comprises an upper shearing box (241) and a lower shearing box (242) which are stacked up and down, a hoisting assembly is arranged on the shearing box (24), the hoisting assembly comprises a locating pin column (251) for fixing the upper shearing box (241) and the lower shearing box (242), a hoisting rod (252) and a lifting hook (253), two ends of the hoisting rod (252) are fixed with the shearing box (24) through screws, and the lifting hook (253) is fixed on the hoisting rod (252);

A first hook hole (3312) is formed in a material box (331) of the consolidation apparatus (3), a first hook (3313) is arranged in the first hook hole (3312), a second hook hole (3341) is formed in a pressure transmitting plate (334) of the consolidation apparatus (3), and a second hook (3342) is arranged in the second hook hole (3341); the two first hook holes (3312) are rotationally symmetrical about the axis of the material box (331), the two second hook holes (3341) are rotationally symmetrical about the axis of the pressure transmitting plate (334), and the two second hook holes (3341) are rotationally symmetrical about the axis of the pressure transmitting plate (334);

the crane lifting device comprises a lifting assembly, the lifting assembly comprises two connecting plates (15) and two rocker arms (19), the two connecting plates (15) are arranged at intervals, the two rocker arms (19) are arranged between the two connecting plates (15), one end of each rocker arm (19) is rotationally connected with the corresponding connecting plate (15), lifting rings (191) are arranged at the other end of each rocker arm (19), fixing hooks (17) are arranged in the middle of each rocker arm (19), two fixing rods (18) are arranged between the two connecting plates (15), the two fixing hooks (17) are fixed on the two fixing rods (18) in one-to-one correspondence, and one ends of the lifting rings (191) are oppositely hung and extend; the lifting rings (191) are arranged in a downward inclined mode, when the fixing hooks (17) are not hooked and fixed on the fixing rods (18), the two rocker arms (19) are mutually abutted, one end, away from the rocker arms (19), of each lifting ring (191) is mutually abutted, an inserting hole (1912) is formed in one lifting ring (191), an inserting column (1911) is arranged in the other lifting ring (191), and the inserting columns (1911) are inserted into the inserting holes (1912); the feeding device comprises a barrel, and is characterized by further comprising a feeding assembly (4), wherein the feeding assembly (4) comprises a barrel and a hanging rope (42), the barrel comprises a barrel body (41) and a bottom plate (44), two connecting holes (411) are formed in the upper portion of the barrel body (41), the two connecting holes (411) are symmetrically arranged along the circumferential direction of the barrel body (41) by 180 degrees in a rotating mode, two ends of the hanging rope (42) penetrate through the two connecting holes (411) in a one-to-one correspondence mode and are bound and fixed, a connecting hook (43) is arranged in the middle of the hanging rope (42), a sliding hole (412) is formed in the lower portion of the barrel body (41), and the bottom plate (44) is slidably arranged in the sliding hole (412) and seals an opening in the lower side of the barrel body (41);

The automatic feeding device is characterized by further comprising a sealing plate (5), wherein a caulking groove (3311) is formed in the bottom of the material box (331), an annular convex box (335) with an upper side opening is embedded in the caulking groove (3311), a guard ring (332) is arranged on the annular convex box (335), the lower part of the guard ring (332) is sleeved outside the annular convex box (335) and is detachably connected, a sample cavity (243) is formed in the shearing box (24), the inner diameter of the sample cavity (243) is equal to the inner diameter of the guard ring (332), and when the sealing plate (5) is placed on the guard ring (332), the sealing plate (5) can cover one side opening of the guard ring (332) away from the annular convex box (335); the novel anti-slip device is characterized in that a detachable connecting assembly is arranged between the retaining ring (332) and the annular convex box (335), the detachable connecting assembly is two in number and two in number, the detachable connecting assembly is arranged along the retaining ring (332) in a circumferential direction by 180 degrees in a rotationally symmetric mode, the detachable connecting assembly comprises a limit post (3331), a first limit sleeve (3332) and a second limit sleeve (3333), a sliding hole (3322) is formed in the retaining ring (332), a limit hole (3352) coaxial with the sliding hole (3322) is formed in the outer side wall of the annular convex box (335), the sliding hole (3322) is a stepped hole and is close to one end of the limit hole (3352), the limit post (3331) is arranged in the limit hole (3322) in a sliding mode, the first limit sleeve (3332) is sleeved on one end of the limit post (3331) close to the limit hole (3352), and the second limit sleeve (3333) is sleeved on one end of the limit post (3331) away from the limit hole (3352).

2. The solid waste and pond dreg mechanical testing device of claim 1, wherein: still include impeller (6), impeller (6) include push rod (61), branch pole (62) and catch bar (63), push rod (61) one end with branch pole (62) middle part is fixed, catch bar (63) divide to establish the both ends of branch pole (62), second stop collar (3333) lateral wall is provided with first guide surface (3334), the one end that branch pole (62) was kept away from to catch bar (63) is provided with second guide surface (631), second guide surface (631) can with first guide surface (3334) laminating.

3. The solid waste and pond dreg mechanical testing device of claim 2, wherein: the annular convex box (335) is characterized in that a first positioning groove (3351) is formed in the outer side wall of the annular convex box, a first positioning raised line (3321) is arranged on the inner side wall of the lower portion of the retaining ring (332), the first positioning raised line (3321) is slidably arranged in the first positioning groove (3351), a second positioning groove (3323) is formed in the outer side wall of the retaining ring (332), a second positioning raised line (632) is arranged on the outer wall of the push rod (63), and the second positioning raised line (632) is slidably arranged in the second positioning groove (3323).

4. A solid waste and pond sediment mechanical testing device according to claim 3, wherein: the utility model discloses a pair of electronic direct shear device, including electronic direct shear device (2), first mounting bracket down with all be provided with brake truckle (91) and altitude mixture control subassembly (92) under the second mounting bracket of consolidation appearance (3), altitude mixture control subassembly (92) are including adjusting pole (921), base (922) and shake handle (923), first mounting bracket down with all vertical screw thread regulation hole (924) have been seted up under the second mounting bracket, adjust pole (921) wear to locate screw thread regulation hole (924) in and screw thread fixing, base (922) be fixed in adjust pole (921) one end, shake handle (923) set up in adjust pole (921) other end and with adjust pole (921) mutually perpendicular.

5. The solid waste and pond dreg mechanical testing device of claim 4, wherein: the portable step piece (8) comprises a bottom frame, supporting rods (82) and a plurality of step plates (83), wherein the bottom frame is formed by fixing four connecting rods (81) end to end, the supporting rods (82) are vertically arranged, the lower ends of the supporting rods (82) are fixed with the step plates (83) at the fixed upper ends of the bottom frame, and the step plates (83) are sequentially lifted;

The first mounting frame comprises a first working plate (211), first supporting feet (212) and first connecting rods (213), wherein the first supporting feet (212) are vertically arranged and are respectively arranged at four corners of the first working plate (211), two first connecting rods (213) are arranged, one first connecting rod (213) corresponds to two first supporting feet (212) and is fixed, the other first connecting rod (213) corresponds to the other two first supporting feet (212) and is fixed, and two ends of the first connecting rod (213) are arranged in a overhanging manner in a direction away from the first supporting feet (212);

the second mounting frame comprises a second working plate (311), second supporting feet (312) and second connecting rods (313), the second supporting feet (312) are vertically arranged and are respectively arranged at four corners of the second working plate (311), two second connecting rods (313) are arranged, one second connecting rod (313) is fixed with the two second supporting feet (312), the other second connecting rod (313) is fixed with the other two second supporting feet (312), and two ends of each second connecting rod (313) are arranged in a cantilever mode in a direction away from the second supporting feet (312);

The two ends of each first connecting rod (213) and the two ends of each second connecting rod (313) are respectively provided with a height adjusting assembly (92), and the distance between the two first connecting rods (213) is consistent with the distance between the two second connecting rods (313).