CN117810896B - A cable overhead installation guide device placed inside a cable well - Google Patents
A cable overhead installation guide device placed inside a cable well Download PDFInfo
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- CN117810896B CN117810896B CN202410226103.3A CN202410226103A CN117810896B CN 117810896 B CN117810896 B CN 117810896B CN 202410226103 A CN202410226103 A CN 202410226103A CN 117810896 B CN117810896 B CN 117810896B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G9/00—Installations of electric cables or lines in or on the ground or water
- H02G9/08—Installations of electric cables or lines in or on the ground or water in tunnels
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
- H02G9/00—Installations of electric cables or lines in or on the ground or water
- H02G9/06—Installations of electric cables or lines in or on the ground or water in underground tubes or conduits; Tubes or conduits therefor
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Abstract
本发明涉及电缆电线安装技术领域，尤其是一种置于电缆井内部的电缆架空安装引导装置，包括第一电缆约束单元、第二电缆约束单元，所述第一电缆约束单元安装在电缆井的竖直井腔内部，所述第二电缆约束单元安装在电缆井的水平井腔内部，所述竖直井腔的上端连接外部环境，所述水平井腔的外端连接地下的电缆敷设管道，在所述第一电缆约束单元与所述第二电缆约束单元之间的电缆井内部空间内的换向约束单元。本发明中的电缆架空安装引导装置适用于安装在电缆井内部完成对需要内部空间内架空转弯的电缆线的导线换向，能够实现对多根电缆线的间隔约束与水平支撑，保证电缆安装架设后的稳定性。
The present invention relates to the technical field of cable and wire installation, and in particular to a cable overhead installation guide device placed inside a cable well, comprising a first cable restraint unit and a second cable restraint unit, wherein the first cable restraint unit is installed inside a vertical well cavity of the cable well, and the second cable restraint unit is installed inside a horizontal well cavity of the cable well, wherein the upper end of the vertical well cavity is connected to the external environment, and the outer end of the horizontal well cavity is connected to an underground cable laying pipeline, and a reversing restraint unit is provided in the internal space of the cable well between the first cable restraint unit and the second cable restraint unit. The cable overhead installation guide device in the present invention is suitable for being installed inside a cable well to complete the reversal of the conductors of a cable line that needs to be turned overhead in the internal space, and can realize the spacing restraint and horizontal support of multiple cables, and ensure the stability of the cable after installation.
Description
Technical Field
The invention relates to the technical field of cable wire installation, in particular to a cable overhead installation guiding device arranged in a cable well.
Background
Cable stringing is typically the process of installing cables on a building through the use of brackets, hangers, and the like. In the construction of power systems, cable erection is a common construction method, especially in areas such as cities and industrial areas where a large number of cables need to be laid.
In the course of cable stringing, various tools and equipment are required, as are a series of construction steps and precautions to be followed. First, in-situ surveys and measurements are required to determine the path of the cable and the position of the rack. Then, facilities such as a mounting bracket, a bracket or a hanger are required to ensure the stability and reliability.
For example, a cable holder for easy installation is disclosed in patent publication CN218300887U, IPC, classification H02G9/02, which mainly includes a fixing support plate, a chute, a slide plate, a strut, a heat sink, a partition plate, and the like.
According to the structural design, the support mainly utilizes the structure formed by combining the fixed support plates and the wire-erecting mechanisms in the wire-erecting process of the cable installation to realize that the spacing between adjacent support rods is required to be adjusted, so that a certain spacing is kept between cables, the cable is convenient to dissipate heat, and the support is suitable for wire-erecting guidance of the cable in the wire-laying construction at the position of the wall-mounting station on the ground in the whole.
However, in the actual cable installation and the construction process of cable laying, the cable is not only required to be routed along the wall in many cases, but also is required to be converted from the ground into the underground through pipe for routing in many cases, and the special cable well is generally arranged to cooperate with the underground pipeline to finish the construction of the remote cable routing according to the cable laying construction method.
From the structure of the cable well, it can be known that the cable support structure is not gathered sufficiently, and is not applicable when the cable erection and guide is completed in the cable well with relatively narrow space, and the adjustment flexibility and reversing capability of the cable support structure cannot meet the installation requirement of the special space environment in the cable well.
Therefore, the invention provides a novel cable overhead installation guiding device aiming at the existing cable erection and wiring in the cable well, which is used for solving the overhead guiding problem of a plurality of cables in the cable well in the installation process.
Disclosure of Invention
The invention aims to solve one of the technical problems, and adopts the following technical scheme: the utility model provides a cable overhead installation guiding device in cable pit is inside, includes first cable constraint unit, second cable constraint unit, first cable constraint unit installs in the vertical well intracavity portion of cable pit, the horizontal well intracavity portion at the cable pit is installed to the second cable constraint unit, the external environment is connected to the upper end in vertical well intracavity portion, the cable laying pipeline of underground is connected to the outer end in horizontal well intracavity portion between first cable constraint unit with be provided with the switching-over constraint unit in the cable pit inner space between the second cable constraint unit, first cable constraint unit the second cable constraint unit with the cooperation of switching-over constraint unit is realized the constraint and the guide to the inside each cable conductor of entering cable pit.
In any of the above solutions, preferably, the first cable restraining unit includes a plurality of first flexible supporting members installed in the vertical well cavity from top to bottom at intervals, each of the first flexible supporting members is fixedly connected with an inner wall of the vertical well cavity through a plurality of first connecting bolts, an integral first restraining member is installed on a left side of each of the first flexible supporting members, and each of the integral first restraining members is used for horizontally restraining a cable line passing through the inside of each of the integral first restraining members.
In any of the above solutions, preferably, the second cable restraining unit includes a plurality of second flexible supporting members installed in the horizontal well cavity at intervals from left to right, each of the second flexible supporting members is fixedly connected with an inner wall of the horizontal well cavity through a plurality of second wall connecting bolts, and an integral second restraining member is installed at an upper portion of each of the second flexible supporting members, and each of the integral second restraining members is used for vertically restraining a cable line passing through the inside of each of the integral second restraining members.
In any of the above schemes, preferably, the reversing constraint unit includes a reversing flexible support member fixedly installed in an inner space of the cable shaft, the reversing flexible support member is fixedly connected with an inner wall of the cable shaft through a plurality of reinforcing wall connecting bolts, a vertical reversing constraint member is installed on a left vertical section of the reversing flexible support member, and a horizontal reversing constraint member is installed on a lower horizontal section of the reversing flexible support member.
In any of the above embodiments, it is preferable that each of the first ductile supporting member, the reversing ductile supporting member, and each of the second ductile supporting member is a ductile member having the same structure and having an adjusting function.
In any of the above schemes, preferably, the toughness component comprises a closed type toughness plate frame formed by integrally bending a thin steel plate, an inner layer plate and an outer layer plate of the closed type toughness plate frame are matched and enclosed to form an adjusting closed cavity, the connecting parts of the inner layer plate and the outer layer plate are integrally bent and formed by adopting semicircular surfaces to realize transitional connection, the outer sides of the connecting parts of the vertical sections and the horizontal sections of the closed type toughness plate frame are transitionally formed by adopting circular-angle curved surfaces, the connecting parts of the inner side of the connecting parts adopt chamfering surfaces to transitionally form, the outer ends of the vertical sections and the outer ends of the horizontal sections of the closed type toughness plate frame are inwards bent, and locking strip-shaped through grooves are formed in the middle parts of the vertical sections and the middle parts of the horizontal sections of the inner layer plate of the closed type toughness plate frame; the locking strip-shaped through groove is used for being fixedly connected with the integrated first restraint piece or the integrated second restraint piece or the vertical reversing restraint piece or the horizontal reversing restraint piece at the corresponding position; and a multidirectional angle adjusting mechanism is arranged in the center screw hole of the chamfering plane.
In any of the above embodiments, preferably, the ductile member comprises a closed ductile plate frame integrally bent from a thin steel plate and the current thin steel plate has a wall thickness of 1mm-2mm.
In any of the above schemes, preferably, the multi-directional angle adjusting mechanism includes a three-way connecting pipe, internal threads are disposed on inner walls of each lumen of the three-way connecting pipe, a shrinkage screw is screwed into a central screw hole of the chamfer plane, one end of the shrinkage screw abuts against a center of an inner wall of the round curved surface, the other end of the shrinkage screw is screwed into an internal thread of the inner wall of the lumen at a corresponding position, external expansion screws are screwed into separate threads in lumens disposed coaxially in the rest, an abutment ball portion is uniformly formed at an outer end of each external expansion screw, each abutment ball portion abuts against an inner plate corresponding side wall of a closed-type ductile plate frame of the ductile assembly at a corresponding position, a wall connecting frame is welded at an outer side wall of the three-way connecting pipe, and the wall connecting frame and the inner wall of the cable well at the corresponding position are relatively fixed;
Each first wall connecting bolt, each second wall connecting bolt and each reinforcing wall connecting bolt are used for fixedly connecting the wall connecting frame at the corresponding position with the inner wall of the cable well.
In any of the above schemes, preferably, each of the integral first constraint pieces, each of the integral second constraint pieces, the vertical reversing constraint pieces and the horizontal reversing constraint pieces are all integral constraint chucks with the same structure, and each of the integral constraint chucks is fixedly installed at the corresponding locking bar-shaped through groove position through a bolt locking piece.
In any of the above schemes, preferably, two outer supporting angle expanding studs which are coaxially and oppositely arranged are controlled to be far away from each other so as to realize outward supporting of the closed type flexible plate frame and expansion of the bending angle of the middle part of the closed type flexible plate frame; controlling the two outer support angle expanding studs which are coaxially and oppositely arranged to be close to each other and the angle shrinking studs at the current position to retract inwards so that the closed type flexible plate frame can be inwards bent by means of self resilience force and the bending angle of the middle part of the closed type flexible plate frame is reduced; when the bending angle of the middle part of the closed type flexible plate frame is changed, the restraint piece arranged on the closed type flexible plate frame is driven to follow the deflection.
In any of the above embodiments, it is preferable that the integral restraining chuck is formed by bending the same steel sheet and the current steel sheet has a wall thickness of 1mm to 2mm.
In any of the above schemes, preferably, the integral restraining chuck comprises two horizontal cable clamping members which are symmetrically arranged, the inner ends of the two cable clamping members are integrally connected through a connecting plate part, the connecting plate part is fixedly arranged at the corresponding locking bar-shaped through groove position through a bolt locking member arranged at the center of the connecting plate part, the outer ends of the two cable clamping members are outwards bent to form outer arc-shaped sections, and the adjacent ends of the two outer arc-shaped sections are horizontally abutted to each other after being relatively abutted through vertical plate parts.
In any of the above aspects, preferably, each of the cable fastening members includes two inner curved sheet portions and an outer curved sheet portion disposed at opposite intervals, the inner curved sheet portion and a connection end of the outer curved sheet portion are integrally bent and formed, a tail end of the inner curved sheet portion is bent into the connection plate portion, an outer end of the outer curved sheet portion is bent into the outer arc-shaped section, a corresponding cable constraint through cavity is formed between each semicircular curved section of the inner curved sheet portion and a corresponding semicircular curved section of the outer curved sheet portion at a corresponding position, and an adjustment space is provided between each adjacent cable constraint through cavity; when the cable constraint through cavity is subjected to external force, the inner diameter size of the cable constraint through cavity can be increased; when the cable constraint through cavity loses external force outwards, the cable constraint through cavity can return to the original position, and the inner diameter size of the cable constraint in the expanded state is reduced.
Compared with the prior art, the invention has the following beneficial effects:
1. The cable overhead installation guiding device is suitable for being installed in a cable shaft to finish the wire reversing of the cable requiring the overhead turning in the inner space, can realize the interval constraint and horizontal support of a plurality of cables, and ensures the stability of the cable after installation and erection.
2. The cable overhead installation guide device can selectively install a proper number of ductile assemblies and the integral constraint chuck according to the actual construction requirement in the cable well when the cable is erected, so that the cable can be effectively constrained, and the smoothness and stability of the overground part in the transition process from the cable well to the underground part are ensured.
3. According to the invention, each flexible component is provided with the closed flexible plate frame formed by integral bending, and simultaneously, the small-amplitude regulation and control of angles at two sides of the flexible plate frame are completed by utilizing the matched multidirectional angle adjusting mechanism, so that the linkage positioning of the integral constraint chuck can be well matched and completed, the regulation and control can be realized according to the installation requirements during the constraint and limit installation of the cable, and the operability of overhead guidance in a small space of the cable is improved.
4. Each constraint unit can realize quick constraint on a plurality of cables by virtue of constraint pieces which are arranged in a quick-dismantling mode, meanwhile, the built-in space of each constraint piece can realize elastic diameter variation, and constraint limit of cables with different types and sizes can be dealt with.
5. The cable can be installed in a central threading or lateral wire clamping and plugging mode during the installation of the cable, and meanwhile, the rapid lateral pressing-in or lateral pulling-out and positioning of the cable are guaranteed, so that the adjustment after the installation is facilitated.
6. The restraint part is integrally bent and formed by adopting the thin steel plates, so that the rapidness in the actual manufacturing process can be ensured, meanwhile, the thickness of each thin steel plate integrally bent and formed by adopting the thickness of 1mm-2mm can ensure the structural strength, the deformation elasticity and the rebound toughness of the restraint part, and the internal size of each cable restraint through cavity in the restraint part can be adjusted and changed by pulling the outer circular arc-shaped section outwards so as to match the cutting ferrule positioning of cables with different outer diameter sizes.
7. The installation of a plurality of restraint parts at corresponding positions can be completed at each locking bar-shaped through groove position of seting up in this design as required, can select the quantity of restraint parts of installation current position department according to cable support interval demand effectively in actual cable construction installation, realize different restraint supporting effects.
8. Each ductile component positioned at the horizontal position can bear certain deformation displacement, and meanwhile, the corresponding constraint piece arranged on the ductile component can realize certain lateral displacement, so that deformation displacement load caused by thermal expansion of the cable in the working process can be handled when the cable extending from the horizontal position is supported, offset of deformation load caused by energy displacement is realized through proper elastic displacement, and the installability of the cable in the working process is ensured.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are used in the embodiments will be briefly described below. Like elements or features are generally identified by like reference numerals throughout the drawings. In the drawings, the elements or components are not necessarily drawn to scale.
Fig. 1 is a schematic view of the structure of the cable overhead installation guide device of the present invention in an internal cross-section after installation.
Fig. 2 is a schematic view of a partial three-dimensional structure of the commutation constraint unit of the present invention.
Fig. 3 is a schematic top view of fig. 2.
Fig. 4 is an enlarged schematic view of the first cable restriction unit according to the present invention.
Fig. 5 is an enlarged schematic view of the structure of the second cable restraining element of the present invention.
Fig. 6 is a schematic three-dimensional structure of the ductile member of the present invention at a first viewing angle.
Fig. 7 is a schematic three-dimensional structure of the ductile member of the present invention at a second viewing angle.
Fig. 8 is a schematic front view of the integral restraint chuck of the present invention.
Fig. 9 is a schematic three-dimensional structure of the integrated restraining chuck of the present invention at a first view angle.
Fig. 10 is a schematic three-dimensional structure of the integrated restraining chuck according to the present invention at a second view angle.
In the figure, 1, a first cable restraining unit; 2. a second cable restraining unit; 3. a cable well; 301. a vertical well bore; 302. a horizontal well cavity; 4. a commutation constraint unit; 5. a reversing ductile support; 51. a vertical commutation constraint; 52. a horizontal reversing constraint; 6. a first flexible support; 7. an integral first restraint; 8. a second ductile support; 9. an integral second restraint; 10. a cable; 11. reinforcing a wall connecting bolt; 12. a closed type flexible plate frame; 1201. an inner layer plate; 1202. an outer layer plate; 1203. adjusting the closed cavity; 1204. a semicircular curved surface; 1205. chamfering a plane; 1206. a locking strip-shaped through groove; 13. a first wall connection bolt; 14. a second wall-connecting bolt; 15. a three-way connecting pipe; 16. a corner reducing stud; 17. an external support angle-expanding stud; 18. pressing the ball part; 19. a wall-attached frame; 20. an integral restraining chuck; 2001. an inner curved sheet portion; 2002. a connection plate portion; 2003. an outer circular arc section; 2004. a vertical plate portion; 2005. an outer curved sheet portion; 21. a bolt locking member; 22. the cable restrains the cavity; 23. the space is adjusted.
Detailed Description
Embodiments of the technical scheme of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical aspects of the present invention, and thus are merely examples, and are not intended to limit the scope of the present invention. The specific structure of the invention is shown in fig. 1-10.
Example 1: the utility model provides a cable overhead installation guiding device in cable pit inside, includes first cable constraint unit 1, second cable constraint unit 2, first cable constraint unit 1 installs inside the vertical well cavity 301 of cable pit 3, second cable constraint unit 2 installs inside the horizontal well cavity 302 of cable pit 3, the external environment is connected to the upper end of vertical well cavity 301, the cable laying pipeline of underground is connected to the outer end of horizontal well cavity 302 be provided with switching-over constraint unit 4 in the cable pit 3 inner space between first cable constraint unit 1 and second cable constraint unit 2, first cable constraint unit 1 second cable constraint unit 2 with switching-over constraint unit 4 cooperation realizes the constraint and the guide to each cable line 10 that gets into inside the cable pit 3. The cable overhead installation guiding device arranged in the cable shaft 3 can meet the construction requirements of the dense laying and installation working conditions of the cable 10 in a relatively small space in the cable shaft 3, can realize the conversion of the overground overhead cable to the downstream underground pipeline laying position after the overground overhead cable is subjected to the internal reversing of the cable shaft 3 after the overground overhead cable is installed, can realize the effective lateral and circumferential limiting constraint of the cable 10 passing through each vertical position in the overground overhead cable by virtue of the first cable constraint unit 1 after the overground overhead cable is installed and fixed, and can finish the lateral shifting and the returning in a certain small range, so that the overground overhead cable is ensured to have a shift reserved space and is prevented from being excessively limited.
It should be noted that: each cable 10 of vertical section can realize 90 about switching-over adjustment after switching-over constraint unit 4 changes to, realizes changing cable 10 of vertical direction into cable 10 of horizontal direction, utilizes each second cable constraint unit 2 can guarantee effectively that the stationarity when carrying out horizontal extension overhead, guarantees stationarity and mountability when laying the pipeline extension to the low reaches underground, improves the guiding effect.
In any of the above solutions, it is preferable that the first cable restraining unit 1 includes a plurality of first flexible supporting members 6 installed in the vertical well cavity 301 at intervals from top to bottom, each of the first flexible supporting members 6 is fixedly connected to an inner wall of the vertical well cavity 301 through a plurality of first connecting bolts 13, and an integral first restraining member 7 is installed on a left side of each of the first flexible supporting members 6, and each of the integral first restraining members 7 is configured to restrain a cable 10 passing through an inside thereof in a horizontal direction.
In any of the above solutions, it is preferable that the second cable restraining unit 2 includes a plurality of second flexible supporting members 8 installed in the horizontal well 302 at intervals from left to right, each of the second flexible supporting members 8 is fixedly connected to an inner wall of the horizontal well 302 by a plurality of second wall connecting bolts 14, an integral second restraining member 9 is installed on an upper portion of each of the second flexible supporting members 8, and each of the integral second restraining members 9 is used for vertically restraining the cable 10 passing through the inside thereof.
It should be noted that: the first cable constraint unit 1 and each second cable constraint unit 2 are fixed with the inner wall of the corresponding cable well 3 through the wall connecting bolts, meanwhile, the first flexible support piece 6 and the second flexible support piece 8 which are arranged are relied on to be supported effectively, meanwhile, the adjustment within a certain angle range can be realized through adjusting and controlling the first flexible support piece 6 and the second flexible support piece 8, the tolerance capacity and the fault tolerance capacity in the installation process are guaranteed, the precision requirement of construction is reduced, and meanwhile, the supporting effect of the cable 10 in the later stage can be achieved.
In addition, it is also to be noted that: the first restraint piece 7 of integral type realizes the restraint to level and side direction, and the restraint to vertical and side direction is realized to the second restraint piece 9 of integral type, can guarantee that cable 10 finishes at the actual installation, the stability in the use, can deal with the deformation problem that the cable heat stretches out and draws back the in-process again simultaneously, and each restraint piece can play the part effect of telescopic joint again effectively, improves the mountability in the use.
In any of the above solutions, it is preferable that the reversing constraint unit 4 includes a reversing flexible support 5 fixedly installed in the inner space of the cable shaft 3, the reversing flexible support 5 is fixedly connected with the inner wall of the cable shaft 3 through a plurality of reinforcing wall connecting bolts 11, a vertical reversing constraint member 51 is installed on a left vertical section of the reversing flexible support 5, and a horizontal reversing constraint member 52 is installed on a lower horizontal section of the reversing flexible support 5.
It should be noted that: the reversing constraint unit 4 is used as a key structure for realizing the reversing of the cable 10, mainly depends on the reversing ductile supporting piece 5 as a main structural supporting piece, and simultaneously depends on the vertical reversing constraint piece 51 and the horizontal reversing constraint piece 52 to be matched with the first constraint piece 7 and the second constraint piece 9 which are integrated respectively, so that the cable 10 at the reversing position is effectively constrained and limited before and after the reversing, and the stable transition, the stable supporting and the constraint and the limiting of the cable 10 arranged at intervals in the reversing process and after the reversing are ensured.
In any of the above embodiments, it is preferable that each of the first flexible supporting member 6, the reversing flexible supporting member 5, and each of the second flexible supporting members 8 be flexible members having the same structure and an adjusting function.
It should be noted that: the uniform toughness component structure can ensure uniform standards when parts are installed, ensure the relative interchangeability of all parts and reduce construction difficulty and installation difficulty; meanwhile, the easy replacement of the device can be ensured in the subsequent fault maintenance process.
In any of the above schemes, preferably, the ductile assembly includes a closed ductile plate frame 12 integrally bent and formed by a thin steel plate, an inner plate 1201 and an outer plate 1202 of the closed ductile plate frame 12 are combined to form an adjusting closed cavity 1203, a connecting portion of the inner plate 1201 and the outer plate 1202 is integrally bent and formed by a semicircular curved surface 1204 to realize transition connection, a connecting portion of a vertical section and a horizontal section of the closed ductile plate frame 12 is transitionally formed by a rounded curved surface, a connecting portion of an inner side is transitionally formed by a chamfer plane 1205, an outer end of the vertical section and an outer end of the horizontal section of the closed ductile plate frame 12 are both bent inwards, and locking strip-shaped through grooves 1206 are formed in a middle portion of the vertical section and a middle portion of the horizontal section of the inner plate 1201 of the closed ductile plate frame 12; the locking bar-shaped through groove 1206 is used for being fixedly connected with the integrated first restraint 7 or the integrated second restraint 9 or the vertical reversing restraint 51 or the horizontal reversing restraint 52 at the corresponding position; a multidirectional angle adjusting mechanism is installed in a central screw hole of the chamfering plane 1205.
In this embodiment, it should be noted that: the integral structural member of the toughness assembly is characterized in that the integral structural member of the toughness assembly is a closed type toughness plate frame 12, the integral structural member is formed by integrally bending a thin steel plate with the thickness of 1mm-2mm, the whole closed type toughness plate frame 12 has a certain supporting effect, elasticity and toughness, the included angle of the central part of the closed type toughness plate frame 12 in a normal state is 60-80 degrees, the angle expansion is required to be completed by utilizing the adjustment of the multidirectional angle adjusting mechanism during use, the angle expansion can be enabled to reach a right angle state under the supporting effect of the multidirectional angle adjusting mechanism, the angle return of the closed type toughness plate frame 12 can be realized by adjusting the multidirectional angle adjusting mechanism in a return mode, the purpose of adjusting and controlling in a certain angle range is achieved, the constraint regulation and control of the cable 10 after the installation are ensured through angle regulation and control, and the effect of correcting and correcting are achieved by releasing the return in a later period.
When the multidirectional angle adjusting mechanism is controlled to enable the two opposite ends of the multidirectional angle adjusting mechanism to extend outwards, the vertical section and the horizontal section can be outwards spread, and therefore an included angle between the vertical section and the horizontal section is ensured to be enlarged; when the multidirectional angle adjusting mechanism is controlled to enable the two opposite ends of the multidirectional angle adjusting mechanism to return inwards, the vertical section and the horizontal section can return by means of elasticity, so that the included angle between the vertical section and the horizontal section is reduced, the purpose of adjusting and correcting the included angle of the round corner curved surface part is achieved, and the position adjusting control of the integral first restraining piece 7 or the integral second restraining piece 9 or the vertical reversing restraining piece 51 or the horizontal reversing restraining piece 52, which are installed on the corresponding vertical section and horizontal section, is achieved to the maximum, and different restraining supporting and limiting effects on the cable 10 are achieved.
In any of the above solutions, preferably, the multidirectional angle adjusting mechanism includes a three-way connecting pipe 15, internal threads are disposed on each lumen inner wall of the three-way connecting pipe 15, a reducing stud 16 is screwed into a central screw hole of the chamfer plane 1205, one end of the reducing stud 16 abuts against the center of the inner wall of the rounded curved surface, the other end of the reducing stud 16 is screwed into the internal threads of the lumen inner wall at the corresponding position, external bracing and expanding studs 17 are screwed into the remaining two coaxially disposed lumens, an external end of each external bracing and expanding stud 17 is uniformly formed with a pressing ball 18, each pressing ball 18 abuts against the corresponding side wall of the inner plate 1201 of the enclosed ductile plate frame 12 of the ductile assembly at the corresponding position, a wall connecting frame 19 is welded at the outer side wall of the three-way connecting pipe 15, and the wall connecting frame 19 is fixedly disposed relative to the inner wall of the cable shaft 3 at the corresponding position.
In this embodiment, it should be noted that: the whole structure of the multidirectional angle adjusting mechanism is fixed relative to the cable shaft 3 by means of the wall connecting frame 19 and bolts, the installation and positioning effects of the whole multidirectional angle adjusting mechanism are guaranteed, and the positioning effect of the toughness assembly connected with the end portion of the multidirectional angle adjusting mechanism is achieved by taking the multidirectional angle adjusting mechanism as a support.
Note that in this embodiment: when the multidirectional angle adjusting mechanism is adjusted, the external supporting angle expanding stud 17 and the angle shrinking stud 16 at the current position can be controlled to extend outwards through rotary adjustment and control of tools such as a spanner, and meanwhile self-locking is achieved after adjustment is finished by means of threads, so that adjustment of the supporting conditions of the central corner or the two side end parts of the closed type flexible plate frame 12 can be effectively guaranteed, control and positioning of an included angle between the vertical section and the horizontal section of the closed type flexible plate frame 12 can be effectively controlled, and adjustment of the position and the inclined direction of a corresponding constraint piece installed on the closed type flexible plate frame is guaranteed.
Each of the first wall connecting bolts 13, each of the second wall connecting bolts 14, and each of the reinforcing wall connecting bolts 11 fixedly connect the wall connecting frame 19 at the corresponding position with the inner wall of the cable shaft 3.
The wall connecting frame 19 is relatively fixed with the inner wall of the cable shaft 3 through bolts, so that the firmness of the whole multidirectional angle adjusting mechanism after the installation is finished can be effectively ensured, and the stability of the cable 10 in the overhead supporting process in the later period is ensured.
In any of the above solutions, it is preferable that each of the integral first constraint member 7, each of the integral second constraint member 9, the vertical reversing constraint member 51, and the horizontal reversing constraint member 52 are all integrally constraint chucks 20 with the same structure, and each of the integrally constraint chucks 20 is fixedly mounted at the corresponding position of the locking bar-shaped through groove 1206 by a bolt locking member 21.
In this embodiment, it should be noted that: each constraint piece can be abutted against the locking strip-shaped through groove 1206 by means of the bolt locking piece 21 at the connecting end part of each constraint piece, so that the firmness of the constraint piece after installation can be guaranteed, and meanwhile, the constraint piece can be conveniently and quickly disassembled for positioning, and fine adjustment can be conveniently realized again after the cable 10 is installed.
Example 2: compared with embodiment 1, this embodiment is different in that:
The method also comprises the following technical characteristics:
in any of the above schemes, it is preferable that the integral restraining chuck 20 includes two horizontal and symmetrically arranged cable clamping members, the inner ends of the two cable clamping members are integrally connected by a connecting plate portion 2002, the connecting plate portion 2002 is fixedly mounted at the corresponding position of the locking bar-shaped through groove 1206 by a bolt locking member 21 arranged at the center of the connecting plate portion 2002, the outer ends of the two cable clamping members are both bent outwards to form an outer arc-shaped section 2003, and adjacent ends of the two outer arc-shaped sections 2003 are abutted against each other by a vertical plate portion 2004 and are in a horizontal butt joint state.
In this embodiment, it should be noted that: the cable joint spare of here design is different from traditional single clamp structure, and its whole adoption wall thickness is 1mm-2 mm's single sheet steel bending type, and this kind of structure can guarantee that the cable joint spare after the shaping can enough possess the supporting effect, still possesses elasticity and toughness return's effect simultaneously, guarantees effectively when retraining spacing effect to cable conductor 10.
In addition, it is also to be noted that: in the process of operating and installing the cable 10, the sizes of the corresponding locking strip-shaped through grooves 1206 can be controlled to be adjusted within a certain size range by snapping the outer arc-shaped sections 2003 on the two corresponding sides, so that the cable 10 with different outer diameter sizes can be clamped and positioned, and the overall installation universality is strong.
In any of the above aspects, it is preferable that each of the cable fastening members includes two inner curved sheet portions 2001 and outer curved sheet portions 2005 disposed at opposite intervals, the inner curved sheet portions 2001 and the connecting ends of the outer curved sheet portions 2005 are integrally bent and formed, the distal ends of the inner curved sheet portions 2001 are bent into the connecting plate portions 2002, the outer ends of the outer curved sheet portions 2005 are bent into the outer arc-shaped sections 2003, corresponding cable constraint through cavities 22 are formed between each semicircular curved section of the inner curved sheet portions 2001 and the corresponding semicircular curved section of the outer curved sheet portions 2005 at corresponding positions, and an adjustment space 23 is provided between each adjacent cable constraint through cavities 22; when the cable restraining through cavity 22 is subjected to external force, the inner diameter size of the cable restraining through cavity can be increased; when the cable tie lumen 22 loses an outward force, it can return and cause the cable tie inner diameter in the expanded state to decrease in size.
It should be noted that: the cable clamping piece wholly has certain deformation return ability in radial direction, will realize the compression of adjusting space 23 under the exogenic action when inwards pressing whole cable clamping piece to guarantee to the reduction of the size of cable restraint through cavity 22, rely on the return ability of the sheet steel of each bending section after external force disappears again can realize automatic return, thereby guarantee to get into the peripheral chucking location of its inside cable line 10, guarantee constraint ability and effect, the commonality is strong.
Example 3: compared with embodiment 2, this embodiment is different in that:
The method also comprises the following technical characteristics:
In any of the above embodiments, it is preferable that the ductile member comprises a closed ductile plate frame 12 integrally bent from a thin steel plate and the current thin steel plate has a wall thickness of 1mm-2mm.
In the embodiment, after the steel sheet with the thickness of 1mm-2mm is subjected to heat treatment, the steel sheet is bent, so that the supporting effect of the steel sheet is ensured, and meanwhile, the steel sheet has certain toughness and elasticity.
In any of the above schemes, it is preferable to control the two outer supporting angle expanding studs 17 which are coaxially and oppositely arranged to be far away from each other so as to realize outward supporting of the enclosed type flexible sheet frame 12 and expand the middle bending angle thereof; controlling the two outer supporting angle expanding studs 17 which are coaxially and oppositely arranged to be close to each other and the inward retraction of the angle shrinking studs 16 at the current position to realize that the closed type flexible sheet frame 12 can inwards change into a state by virtue of self resilience force and reduce the bending angle of the middle part of the closed type flexible sheet frame; when the bending angle of the middle part of the closed type flexible plate frame 12 changes, the restraint piece arranged on the closed type flexible plate frame is driven to follow the deflection.
It should be noted that: the error defect in the mounting construction can be overcome through small-amplitude adjustment after the mounting construction is finished by adjusting and controlling the change of the included angle between the vertical section and the horizontal section of the closed-type flexible plate frame 12, so that the final constraint limiting effect on the cable 10 is ensured, and the final mounting quality is improved.
In any of the above embodiments, it is preferable that the integral restraining chuck 20 is formed by bending the same steel sheet and the current steel sheet has a wall thickness of 1mm-2mm.
In the same way, the thin steel plate with the thickness of 1mm-2mm after the quenching and tempering treatment is adopted for bending in the embodiment, so that the supporting effect of the thin steel plate is ensured, and meanwhile, the thin steel plate has certain toughness and elasticity.
The specific working principle is as follows: the cable overhead installation guiding device can cope with the construction requirements of the dense laying and installation working conditions of the cable 10 in the relatively narrow space inside the cable well 3, can realize the conversion of the underground overhead cable to the downstream underground pipeline laying position after the internal reversing of the cable well 3 after the installation is finished, can realize the effective lateral and circumferential limiting constraint of the cable 10 passing through each vertical position inside the device by virtue of the first cable constraint unit 1 after the installation and the fixation are finished, can finish the lateral shifting and the return in a certain small range, ensure the existence of a shifting reserved space and prevent the excessive limiting.
In performing the installation of the cable 10, there are two ways: one is a threading installation mode, namely each cable 10 is restrained by a corresponding cable to pass through the cavity 22, so that accurate centering of threading is ensured; the other is: the outward expansion is adopted to enlarge the lateral adjusting space 23 of the cable constraint through cavity 22 and plug the cable 10 into the cable constraint through cavity 22 from the current lateral adjusting space 23 to realize installation, and the mode is mainly applicable to the situation that some follow-up cables need to be plugged after being cut off, maintained and reconnected, so that the cable 10 after maintenance is convenient to install in place quickly. In addition, after the whole device is installed, each cable clamping piece integrally has certain deformation return capability in the radial direction, compression of the adjusting space 23 can be realized under the action of external force when the whole cable clamping piece is pressed inwards, so that the size of the cable constraint through cavity 22 is reduced, automatic return can be realized by means of the return capability of the thin steel plates of each bending section after the external force disappears, clamping and positioning of the periphery of the cable 10 entering the cable clamping piece are ensured, constraint capability and effect are ensured, and universality is strong.
Overall, it is possible to: the cable overhead installation guiding device is suitable for being installed in the cable shaft 3 to finish the wire commutation of the cable 10 which needs to be turned overhead in the inner space, can realize the interval constraint and horizontal support of a plurality of cables 10, and ensures the stability of the cable after installation and erection; each constraint unit can realize quick constraint on a plurality of cables 10 by virtue of constraint pieces which are arranged in a quick-dismantling way, and meanwhile, the built-in space of each constraint piece can realize elastic diameter variation, so that constraint limit of cables 10 with various different types and sizes can be dealt with; the cable 10 can be installed in a central threading or lateral wire clamping and plugging mode when the cable 10 is installed, and meanwhile, rapid lateral pressing or lateral pulling and positioning of the cable 10 are guaranteed, so that adjustment after installation is facilitated.
The cable overhead installation guiding device can selectively install a proper number of ductile components and the integral type constraint chuck 20 according to the actual construction requirement in the cable well 3 when the cable is erected, so that the cable can be effectively constrained, and the smoothness and stability of the overground part in the transition process from the cable well 3 to the underground part are ensured.
Each ductile component is provided with a closed ductile plate frame 12 which is integrally bent and formed, and simultaneously, the small-amplitude regulation and control of angles at two sides of the ductile plate frame are completed by utilizing a matched multidirectional angle modulation mechanism, so that the integral constraint chuck 20 can be matched and positioned in a linkage way, the regulation and control can be realized according to the installation requirements during the constraint and limit installation of the cable, and the operability of overhead guidance in a small space of the cable is improved; the restraint adopts the steel sheet integral bending molding can guarantee the swiftly in actual manufacturing process, and each integral bending molding's steel sheet adopts 1mm-2 mm's thickness simultaneously can guarantee its structural strength, deformation elasticity and resilience toughness, and the inside size of each cable restraint through-cavity 22 of restraint inside can all realize adjusting the change through outwards pulling outer convex section 2003 to match the cutting ferrule location of different external diameter dimension's cable conductor 10.
The positions of the locking strip-shaped through grooves 1206 can be used for completing the installation of a plurality of constraint pieces at the corresponding positions according to the requirements, and the number of the constraint pieces at the current positions can be effectively selected according to the requirements of cable supporting intervals in the actual cable construction and installation process, so that different constraint supporting effects are realized; each ductile component positioned at the horizontal position can bear certain deformation displacement, and meanwhile, the corresponding constraint piece arranged on the ductile component can realize certain lateral displacement, so that deformation displacement load caused by thermal expansion and contraction of the cable 10 in the working process can be handled when the cable 10 extending at the horizontal position is supported, offset of deformation load caused by energy displacement is realized through proper elastic displacement, and the installability of the cable in the working process is ensured.
The above embodiments are only for illustrating the technical solution of the present invention, and not for limiting the same; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the corresponding technical solutions; any alternative modifications or variations to the embodiments of the present invention will fall within the scope of the present invention for those skilled in the art.
The present invention is not described in detail in the present application, and is well known to those skilled in the art.
Claims (4)
1. The utility model provides a cable overhead installation guiding device in cable pit is inside which characterized in that: the cable well comprises a first cable constraint unit and a second cable constraint unit, wherein the first cable constraint unit is arranged in a vertical well cavity of a cable well, the second cable constraint unit is arranged in a horizontal well cavity of the cable well, the upper end of the vertical well cavity is connected with an external environment, the outer end of the horizontal well cavity is connected with an underground cable laying pipeline, a reversing constraint unit is arranged in a cable well inner space between the first cable constraint unit and the second cable constraint unit, and the first cable constraint unit, the second cable constraint unit and the reversing constraint unit are matched to realize constraint and guide of each cable entering the cable well;
the first cable constraint unit comprises a plurality of first flexible supporting pieces which are arranged in the vertical well cavity at intervals from top to bottom, each first flexible supporting piece is fixedly connected with the inner wall of the vertical well cavity through a plurality of first connecting wall bolts, an integrated first constraint piece is arranged on the left side of each first flexible supporting piece, and each integrated first constraint piece is used for horizontally constraining a cable passing through the inside of each integrated first constraint piece;
The second cable restraining unit comprises a plurality of second flexible supporting pieces which are arranged in the horizontal well cavity at intervals from left to right, each second flexible supporting piece is fixedly connected with the inner wall of the horizontal well cavity through a plurality of second wall connecting bolts, the upper part of each second flexible supporting piece is provided with an integrated second restraining piece, and each integrated second restraining piece is used for vertically restraining a cable wire passing through the inside of each integrated second restraining piece;
The reversing constraint unit comprises a reversing flexible support piece fixedly arranged in the inner space of the cable shaft, the reversing flexible support piece is fixedly connected with the inner wall of the cable shaft through a plurality of reinforcing wall connecting bolts, a vertical reversing constraint piece is arranged on the left vertical section of the reversing flexible support piece, and a horizontal reversing constraint piece is arranged on the lower horizontal section of the reversing flexible support piece;
Each first flexible supporting piece, each reversing flexible supporting piece and each second flexible supporting piece adopt flexible components which have the same structure and have an adjusting function;
The flexible component comprises a closed flexible plate frame formed by integrally bending a thin steel plate, an inner plate and an outer plate of the closed flexible plate frame are matched to form an adjusting closed cavity, the connecting parts of the inner plate and the outer plate are integrally bent and formed by semicircular curved surfaces to realize transition connection, the outer side of the connecting part of the vertical section and the horizontal section of the closed flexible plate frame is formed by fillet curved surface transition, the connecting part of the inner side of the connecting part of the vertical section and the horizontal section of the closed flexible plate frame is formed by chamfer plane transition, the outer ends of the vertical section and the outer end of the horizontal section of the closed flexible plate frame are inwards bent, and locking strip-shaped through grooves are formed in the middle parts of the vertical section and the middle part of the horizontal section of the inner plate of the closed flexible plate frame; the locking strip-shaped through groove is used for being fixedly connected with the integrated first restraint piece or the integrated second restraint piece or the vertical reversing restraint piece or the horizontal reversing restraint piece at the corresponding position; and a multidirectional angle adjusting mechanism is arranged in the center screw hole of the chamfering plane.
2. A cable overhead installation guide device for placement within a cable pit according to claim 1, wherein: the multidirectional angle adjusting mechanism comprises three-way connecting pipes, wherein internal threads are arranged on the inner walls of all the tube cavities of the three-way connecting pipes, angle reducing studs are screwed into central screw holes of chamfer planes, one ends of the angle reducing studs are abutted against the centers of the inner walls of round curved surfaces, the other ends of the angle reducing studs are screwed into the internal threads of the inner walls of the tube cavities at corresponding positions, external expanding studs are screwed into the inner walls of the tube cavities arranged at the other two coaxial positions respectively, pressing ball parts are uniformly formed at the outer ends of the external expanding studs, the pressing ball parts are abutted against corresponding side walls of inner layers of closed type flexible plate frames of flexible components at the corresponding positions, and wall connecting frames are welded at the outer side walls of the three-way connecting pipes and are fixedly arranged relative to the inner walls of cable wells at the corresponding positions.
3. A cable overhead installation guide device for placement within a cable pit according to claim 2, wherein: each integral type first restraint, each integral type second restraint, each vertical switching-over restraint and horizontal switching-over restraint all adopt the same integral type restraint chuck of structure, each integral type restraint chuck all through bolt locking part fixed mounting in corresponding the bar logical groove position department of locking.
4. A cable overhead installation guide device for placement within a cable pit according to claim 3, wherein: the two outer stretching angle expanding studs which are coaxially and oppositely arranged are controlled to be far away from each other, so that the closed type flexible plate frame is stretched outwards, and the bending angle of the middle part of the closed type flexible plate frame is expanded;
controlling the two outer support angle expanding studs which are coaxially and oppositely arranged to be close to each other and the angle shrinking studs at the current position to retract inwards so that the closed type flexible plate frame can be inwards bent by means of self resilience force and the bending angle of the middle part of the closed type flexible plate frame is reduced;
when the bending angle of the middle part of the closed type flexible plate frame is changed, the restraint piece arranged on the closed type flexible plate frame is driven to follow the deflection.
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| CN202410226103.3A CN117810896B (en) | 2024-02-29 | 2024-02-29 | A cable overhead installation guide device placed inside a cable well |
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| CN118693706B (en) * | 2024-08-28 | 2025-01-10 | 国网山东省电力公司曲阜市供电公司 | A guiding device placed inside a cable well and a method of using the same |
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| CN117810896A (en) | 2024-04-02 |
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Denomination of invention: A cable overhead installation guide device placed inside a cable well Granted publication date: 20240524 Pledgee: Weifang Bank Co.,Ltd. Liaocheng Yanggu Branch Pledgor: SHANDONG YANGGU HENGCHANG CABLE GROUP Co.,Ltd. Registration number: Y2025980002944 |
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