KR200370907Y1 - Multiple jack of a accord - Google Patents

Abstract

The present invention relates to a multi-tuned hydraulic jack capable of operating a plurality of cylinders at the same time can be raised and lowered without overturning the heavy weight, and can work at high and long distances without moving the main unit.

A cart 30 for easy movement and storage of the main device 40; An extrusion distribution valve 56 attached to the cart 30; A plurality of upward flow rate control valves 57 connected to the extrusion distribution valve 56; A main flow control valve 60 connected to the extrusion distribution valve 56; A pressure regulating switch 61 mounted on the extrusion dispensing valve 56; A pressure gauge 58 mounted to each of the rising flow regulating valves 57; In addition, the lower distribution side 66 attached to the cart 30; A plurality of falling flow control valves 67 connected to the falling distribution valves 66; An extrusion manifold 71 and a lowering manifold 81 attached to the cart 30; An extrusion residual pressure relief valve 41 attached to the cart 30, a downward residual pressure relief valve 42; An instrument panel 90 attached to the cart 30, and a remote and panel selection switch 96 and a remote operation switch 95 connected to the instrument panel 90; And the hose reel 45 is mounted to the cart 30 can safely operate the double-acting cylinder 100, characterized in that easy to sue and remote operation.

Description

Multiple jack of a accord}

The present invention relates to a multi-tuned hydraulic jack capable of operating a plurality of cylinders at the same time can be raised and lowered without overturning the heavy weight, and can work at high and long distances without moving the main unit.

Hydraulic jack is a hydraulic device that can output a large force by using the hydraulic pressure is often used to maneuver by mounting a lever, but in the production site is used to raise and lower heavy load heavy load by using a hydraulic pump.

1 is a cross-sectional view showing an embodiment of a hydraulic jack to which the prior art is applied.

In general, the hydraulic jack can be used for both the single-acting cylinder and the double-acting cylinder (2), it will be described below as an example in which the double-acting cylinder (2) is applied.

The hydraulic jack 1 is connected to the hydraulic pump 4 by the directional valve 5 with two hydraulic hoses 10, and the directional valve 5 is an upward flow regulating valve 6 and a downward flow regulating valve, respectively. (7) is connected to the hydraulic hose (8).

In addition, the upward flow control valve 7 communicates with the hydraulic hose 8 to the lower part of the double acting cylinder 2 and the downward flow control valve 6 to the upper part of the double acting cylinder 2.

Therefore, when the hydraulic oil flows into the upper part of the double-acting cylinder 2 by the direction switching valve 5, the piston 3 descends, and when the hydraulic oil flows into the lower part of the double-acting cylinder 2, the piston 3 rises.

The up and down speeds of the piston 3 are adjusted by the respective upstream flow regulating valves 7 and the downward flow regulating valves 6.

Looking at the example in which the conventional hydraulic jack (1) by the above structure is used in the production site, a large number of hydraulic jack (1) is required by handling a heavy load of heavy load (9), in this case, each hydraulic jack There must be an operator to control the operation for each (1), and the number of signals for checking the rising and falling speed for each double acting cylinder 2 of the hydraulic jack 1 is required.

Therefore, the operator sees the signal of the signal numbers and comes to work on the tuning of each hydraulic jack 1.

However, in this case, the tuning operation is impossible by relying on the sixth sense of each person, and the heavy object 9 is overturned due to the speed difference of the piston 3 of each hydraulic jack 1, and workers have a safety accident. In addition, the work efficiency is lowered by requiring many workers.

In addition, there is a inconvenience to move the hydraulic pump 4 and the double-acting cylinder 2 of each hydraulic jack 1 to the work site when working at a height and a long distance.

In addition, since there is no limit pressure setting function, there are many cases where the double acting cylinder 2 is broken when an excessive weight is raised, which also causes a safety accident.

When the hydraulic hoses 8 and 10 are separated from the double acting cylinders 2 for the purpose of repairing or replacing the hydraulic jacks 1, the hydraulic hoses 8 and 10 are separated by the residual pressure in the double acting cylinders 2. Not easy

Therefore, the present invention is designed to solve the problems described above, by controlling several cylinders at the same time at the same time to enable the synchronization operation of each cylinder, the hose reel is mounted on the main device without the height of Long distance operation is possible, and the pressure adjustment switch can be installed to set the maximum pressure, and the residual pressure elimination valve makes it easy to remove the hydraulic hose, which aims to improve the safety and efficiency of the work.

1 is a cross-sectional view showing an embodiment of a hydraulic jack to which the prior art is applied.

Figure 2 is a perspective view showing a state in which the hydraulic hose is omitted in the main device of the multi-tuning hydraulic jack to which the technique of the present invention is applied

Figure 3 is a perspective view showing a short-range use case of the multi-tuning hydraulic jack to which the technique of the present invention is applied

Figure 4 is a perspective view showing a sue and remote use case of the multi-tuning hydraulic jack to which the technique of the present invention is applied

5 is an enlarged view of a portion A of FIG.

FIG. 6 is an enlarged view illustrating part B of FIG. 3.

* Description of the main parts of the drawings *

30: Cart 41: Extrusion residual pressure release valve

42: falling residual pressure release valve 45: hose reel

56: extrusion distribution valve 57: rising flow control valve

58: pressure gauge 60: main flow control valve

61: pressure control switch 66: lower distribution valve

67: downward flow control valve 71: extrusion manifold

75: outside extrusion hydraulic hose 76: inside extrusion hydraulic hose

81: lowering manifold 85: outer lowering hydraulic hose

86: inner lowering hydraulic hose 90: instrument panel

95: remote operation switch 96: remote and panel selector switch

100: double acting cylinder 101: rod

Hereinafter, with reference to the accompanying drawings will be described the configuration and operation of the present invention for achieving the above object.

2 is a perspective view showing a state in which the hydraulic hose is omitted from the main device of the multi-tuning hydraulic jack to which the technology of the present invention is applied, FIG. 3 is a perspective view showing a short-range use example of the multi-tuning hydraulic jack to which the technology of the present invention is applied, FIG. 3 is a perspective view illustrating a sue and remote use example of a multi-tuning hydraulic jack to which the technique of the present invention is applied. FIG. 5 is an enlarged view of part A of FIG. 3 and FIG. 6 is an enlarged view of part B of FIG. 3.

In the present invention, the synchronous operation of the double-acting cylinder 100 and the maximum pressure setting and the residual pressure removing function, and the hose reel 45 are provided to maximize the working efficiency so that a small number of people can work safely.

The present invention for this purpose is equipped with a hydraulic tank (54) for storing the hydraulic oil in the rear of the bottom of the cart (30) on which the cast 31 is mounted, a hydraulic pump (53) for generating hydraulic pressure on the upper surface of the hydraulic tank (54) Is attached, and a direction change valve 55 for changing the up and down direction of the rod 101 is attached to the rear of the hydraulic pump 53.

The top of the hydraulic pump 53, that is, the top of the cart 30 is attached to the extrusion dispensing side support 32 to which the extrusion dispensing side 56 is attached, the lower distribution side in front of the extrusion dispensing side support 32 A down-distribution edge support 33 on which 66 is mounted is mounted.

The extrusion dispensing valve support 32 is attached to an extrusion dispensing valve 56 for dividing and supplying the hydraulic oil, and a rising flow rate regulating valve 57 receiving hydraulic oil from the extrusion dispensing valve 56 is communicated with each other. A pressure gauge 58 is connected in front of the rising flow rate control valve 57, and an extrusion coupling 59 is mounted at the tip of the pressure gauge 58.

The extrusion dispensing valve 56 is equipped with a main flow control valve 60 for enabling the synchronizing operation of the rod 101 and a pressure control switch 61 for setting the maximum pressure.

The lower dispensing valve support 33 is attached with a lower dispensing valve 66 for distributing and supplying hydraulic oil, and a plurality of lower flow control valves 67 are connected to the lower dispensing valve 66 for supplying hydraulic fluid from the lower dispensing valve 66. The lower coupling 69 is connected to the front end of each lower flow regulating valve 67.

An upper manifold support 36 is welded to the front upper portion of the cart 30, and a lower manifold support 37 is welded to the lower portion of the cart 30.

Accordingly, an extrusion manifold 71 having a flow path formed therein is attached to the lower manifold support 37, and a plurality of outer extrusion couplings 72 are mounted in front of the extrusion manifold 71, and opposite sides thereof. It is equipped with a plurality of inner extrusion coupling 73. The hydraulic pressure is thus communicated to the inner extrusion coupling 73, the extrusion manifold 71, and the outer extrusion coupling 72.

The upper manifold support 36 is attached with a lower manifold 81 having a flow path formed therein, and a plurality of outer lower couplings 82 are mounted in front of the lower manifold 81, and a plurality of opposite manifolds 82 are provided on the opposite side. The inner lower coupling 83 is mounted. Therefore, hydraulic pressure is communicated with the inner lower coupling 83, the lower manifold 81, and the outer lower coupling 82.

A left support 34 and a right support 35 are welded over the rear frame of the upper manifold support 36 and the cart 30, and extruded residual pressure is removed from the left support 34 and the right support 35, respectively. The valve 41 and the lower residual pressure relief valve 42 are mounted.

The extrusion residual pressure relief valve 41 is connected to the extrusion distribution valve 56 and the hydraulic tank 54 by hydraulic hoses 41-1 and 41-2, respectively, and the downward residual pressure relief valve 42 is a downward distribution valve. The hydraulic hoses 42-1 and 42-2 are connected to the 66 and the hydraulic tank 54, respectively.

The instrument panel 90 for controlling the main device 40 is mounted at the far rear upper portion of the cart 30, and the instrument panel 90 lights a lamp 91 and a flow path direction indicator light when the hydraulic pump 53 is operated. 92), indicator light (93), emergency stop switch (94), remote operation switch (95), remote and panel selector switch (96), overload alarm (97), earth leakage disconnect switch (98) It consists of.

The remote and panel selection switch 96 allows selection of the instrument panel 90 or the remote operation switch 95. In the case of the remote operation switch 95, the remote device is connected to the electric wire from the main device 40 at a distance. It is a device that enables vertical operation of the rod 101.

On the side of the hydraulic tank 54 mounted to the cart 30, a hose reel 45 is attached to the cart 30 and connected to the extrusion coupling 59 to the inner extrusion hydraulic hose 76 and the descending couple. After the inner lowering hydraulic hose 86, which is connected to the ring 69, is wound to a considerable length, the inner lowering coupling 83 of the inner manifold coupling 73 and the lowering manifold 81 of the extrusion manifold 71, respectively. )

Next, the outer extrusion coupling 72 of the extrusion manifold 71 and the coupling (not shown) mounted on the lower portion of the double-acting cylinder 100 are connected to the outer extrusion hydraulic hose 75, and the lower manifold 81 is connected. The outer lower coupling 82 and the coupling (not shown) mounted on the upper portion of the double-acting cylinder 100 is connected to the outer lower hydraulic hose (85).

Looking at the operation example of the present invention by the above configuration is as follows.

First, when the power is turned on and the directional valve 55 is operated so that the rod 101 of the double-acting cylinder 100 is upward, the hydraulic oil of the hydraulic tank 54 is transferred to the extrusion distribution valve 56 by the hydraulic pump 53. .

Then, after being dispensed and supplied to the plurality of upward flow rate control valves 57, the plurality of outer extrusion hydraulic hoses are passed through the pressure gauge 58, through the plurality of inner extrusion hydraulic hoses 76, and through the extrusion manifold 71. A plurality of double acting cylinders 100 are introduced through the 75, and are introduced into a coupling (not shown) mounted at a lower portion of the double acting cylinder 100.

Thus, the rod 101 of the double acting cylinder 100 is upward. At this time, in order to match the upward speed of the rod 101 of the plurality of double-acting cylinders 100, the hydraulic pressure of the plurality of upward flow control valves 57 connected to the extrusion dispensing valve 56 while looking at each pressure gauge 58 To control.

After the hydraulic pressure is matched, only the main flow rate control valve 60 connected to the extrusion distribution valve 56 may simultaneously synchronize the rising speed of the rod 101 formed in each double-acting cylinder 100.

Therefore, when lifting the heavy load, it can be lifted safely without raising the fall by horizontally rising. In the above, the tuning operation is possible only with each of the rising flow regulating valves 57.

In addition, it is possible to prevent the case that the double-acting cylinder 100 is destroyed in excess of the ultimate hydraulic pressure by the limit pressure pressure setting can be set by the pressure regulating switch 61.

Next, when the directional valve 55 is operated in a downward direction, the hydraulic oil of the double-acting cylinder 100 is reversely fed to the outer extrusion hydraulic hose 75, the extrusion manifold 71 and the inner extrusion hydraulic hose 76, and the extrusion distribution valve. It flows into the hydraulic tank 54 via the direction change valve 55 via 56.

Then, the working oil reaches the down dispensing valve 66 past the direction change valve 55, and is supplied to the plurality of down flow control valves 67. And it passes through the coupling (not shown) mounted on the upper part of the double-acting cylinder 100 through the lowering manifold 81 through the inner lowering hydraulic hose 86 and the outer lowering hydraulic hose 85. Therefore, the rod 101 of the double acting cylinder 100 is lowered.

At this time, by adjusting the plurality of falling flow rate control valve 67 it can be safely lowered horizontally without falling of the weight.

In addition, when working at a height or a long distance, a plurality of double-acting cylinder (100) is located at a height or a remote place, and from the extrusion manifold 71 and the lower manifold 81 and the inner extrusion hydraulic hose 76 and The inner downward hydraulic hose 86 is separated and coupled to each double acting cylinder 100.

In this case, the inner extrusion hydraulic hose 76 and the inner downward hydraulic hose 86 are wound on the hose reel 45 and are easily fastened to the double acting cylinder 100 located at a height or a long distance.

In addition, by operating the remote and panel selection switch 96 in the instrument panel 90, the control of the system is moved to the remote operation switch 95, and the remote operation switch 95 connected by a wire is located where the double acting cylinder 100 is located. It can be taken to control the vertical movement of the rod 101 at a short distance.

After the extrusion and the lowering operation of the double-acting cylinder 100, the residual pressure remains in the outer extrusion hydraulic hose 75, the inner extrusion hydraulic hose 76 and the outer downward hydraulic hose 85, the inner downward hydraulic hose 86. do. In this case, it is difficult to replace or repair the hydraulic hoses 75, 76, 85 and 86 because it is not easy to detach, but if the hydraulic hoses 75, 76, 85 and 86 are forcibly removed, the risk of a safety accident This happens.

However, in the present invention, after the rod 101 of the double-acting cylinder 100 is raised, the hydraulic pump 53 is stopped to remove the residual residual pressure remaining in the outer extrusion hydraulic hose 75 and the inner extrusion hydraulic hose 76. After the extrusion is performed, the external extrusion hydraulic hose 75 and the internal extrusion are provided through the extrusion residual pressure relief valve 41 connected to the extrusion distribution valve 56 and the hydraulic tank 54 by hydraulic hoses 41-1 and 41-2, respectively. The residual pressure of the extrusion is removed by flowing the hydraulic oil of the hydraulic hose 76 into the hydraulic tank 54.

After the rod 101 is lowered, the hydraulic pump 53 is stopped to remove the residual residual pressure remaining in the outer downward hydraulic hose 85 and the inner downward hydraulic hose 86, and then the lower distribution side 66 and The hydraulic oil of the outer lower hydraulic hose 85 and the inner lower hydraulic hose 86 is supplied to the hydraulic tank through the lower residual pressure relief valve 42 connected to the hydraulic tank 54 by the hydraulic hoses 42-1 and 42-2, respectively. The falling residual pressure is eliminated by flowing into 54.

Therefore, after the up-and-down operation of the rod 101, it is possible to detach the outer extrusion hydraulic hose 75, the inner extrusion hydraulic hose 76 and the outer downward hydraulic hose 85, the inner downward hydraulic hose 86.

In addition, since the main device 40 is mounted on one cart 30, it is easy to move and store.

As described above, the main flow control valve, the up flow control valve, and the down flow control valve allow the operator to safely synchronize a plurality of double-acting cylinders by themselves, and the hose reel and the remote operation switch make it easy to sue or operate remotely. And, the hydraulic residual hose is easy to be separated by the extrusion residual pressure removing valve and the falling residual pressure removing valve, and the main device is mounted on the cart to facilitate movement and storage.

Claims (3)

In constructing a multiple tuning hydraulic jack, The cart 30 is provided to facilitate the movement and storage of the main device 40, An extrusion distribution valve 56 attached to the cart 30 for dividing and supplying hydraulic oil; A plurality of upward flow rate control valves 57 connected to the extrusion distribution valve 56 to control the rising speed of the rod 101; A main flow rate control valve 60 connected to the extrusion distribution valve 56 to integrally adjust a rising speed of each rod 101; A pressure regulating switch 61 mounted on the extrusion dispensing valve 56 to control the limit pressure pressure; A pressure gauge 58 mounted to each of the rising flow regulating valves 57, A lower distribution side 66 attached to the cart 30 and dividing and supplying hydraulic oil; A plurality of descending flow rate regulating valves 67 connected to the lower distribution side 66 to control the descending speed of the rod 101; An extrusion manifold 71 attached to the cart 30 to supply hydraulic oil to the external extrusion hydraulic hose 75; A lower manifold 81 attached to the cart 30 to supply hydraulic oil to the outer lower hydraulic hose 85; Extrusion residual pressure relief valve 41 attached to the cart 30 to remove residual pressure in the outer extrusion hydraulic hose 75, the inner extrusion hydraulic hose 76, the outer downward hydraulic hose 85, and the inner downward hydraulic hose 86. ) And the lower residual pressure relief valve 42, Multi-tuned hydraulic jack, characterized in that formed in the instrument panel (90) attached to the cart 30 to check and control the operation status. The method of claim 1, Multi-tuned hydraulic jack, characterized in that the instrument panel (90) is equipped with a remote and panel selection switch 96 for converting to a remote control switch (95) control system and a remote control switch (95) capable of remote control. The method of claim 1, Multi-tuned hydraulic jack, characterized in that the cart 30 is equipped with a hose reel (45) wound around the inner extrusion hydraulic hose 76 and the inner downward hydraulic hose (86).