A protective device for the pressure element of a hydraulic support.

Abstract

This utility model belongs to the field of hydraulic support protection technology, specifically a protective device for the pressure element of a hydraulic support. It includes a sealing sleeve, with an anti-slip stepping mechanism on the outer surface of the sealing sleeve. Hooks are fixedly connected to both sides of the sealing sleeve and at the bottom edge. A screw rod is movably sleeved on the outer surface of each hook, and a protective cover is provided on the outer surface of the screw rod. When an employee steps on the top surface of the anti-slip stepping mechanism, the overlapping support plate on the inner wall of the top of the sealing sleeve overlaps with the top surface of the protective cover. As the sealing sleeve continues to press down, the elastic wire is compressed. The employee then swings the anti-slip stepping mechanism back and forth, adjusting the angle of the hooks on the bottom surface of the sealing sleeve, allowing the hooks to effectively engage with or detach from the screw rod.

Description

Technical Field

[0001] This utility model belongs to the field of hydraulic support protection technology, specifically a protective device for the pressure element of a hydraulic support. Background Technology

[0002] Single hydraulic props are large in size and occupy a lot of space. In addition, existing single hydraulic props have many components, making disassembly cumbersome. After a failure, maintenance is troublesome and wastes manpower and resources. Existing single hydraulic props use three-way valves, which have a complex structure, are easy to bend, are easy to corrode, and have a high failure rate, and cannot meet the current downhole operating conditions.

[0003] A patent with publication number CN113006837A discloses a modular single hydraulic support. To solve the problems of large size, large space occupation, and troublesome maintenance after failure, which wastes manpower and resources, the support is designed with a piston module, a cylinder module, and a valve group module. The cylinder module includes a clamp valve seat, cylinder, base, handle, and L-shaped groove connecting pipe. The piston module includes a top cover, piston, clamp, dustproof telescopic sleeve, lower spring connecting device, return spring, upper spring connecting ring, and limit ring. The valve group module includes a longitudinally designed valve group protective sleeve, inlet valve, and safety valve, replacing the original horizontal three-way valve, achieving the effect of reducing size and facilitating maintenance after failure.

[0004] In current technology, when the hydraulic support column is subjected to increased force and the pressure reaches the set pressure value of the safety valve, the safety valve will open, and the pressurized fluid in the system will be quickly discharged through the safety valve drain hole to release the pressure. However, the impact force generated when the pressurized fluid inside the hydraulic system is discharged can cause damage to nearby employees or objects. The protective cover needs to be manually pulled out by employees later. The safety valve protection mechanism of the hydraulic support column is too complicated to install, making it too troublesome for workers to use the safety valve body.

[0005] Therefore, a protective device for the pressure element of a hydraulic support is proposed to address the above problems. Utility Model Content

[0006] To overcome the shortcomings of existing technologies and solve the above-mentioned problems, a protective device for the pressure element of a hydraulic support is proposed.

[0007] The technical solution adopted by this utility model to solve its technical problem is as follows: The protective device for the pressure element of the hydraulic support of this utility model includes a sealing shell, an anti-slip stepping mechanism is provided on the outer surface of the sealing shell, hooks are fixedly connected to both sides of the sealing shell and at the bottom edge, a screw rod is movably sleeved on the outer surface of the hook, and a protective cover is provided on the outer surface of the screw rod.

[0008] Preferably, the outer surface of the protective cover is provided with a vent hole, and the bottom surface of the protective cover is provided with an oil guide pipe.

[0009] Preferably, an overlapping support plate is fixedly connected to the bottom surface of the protective cover, and a hydraulic support is fixedly connected to the other end of the oil guide pipe.

[0010] Preferably, an elastic wire is fixedly connected to the inner top wall of the sealing sleeve, and an overlapping support plate is fixedly connected to one end of the elastic wire.

[0011] Preferably, a compression sealing strip is fixedly connected to the inner wall of the sealing sleeve at the bottom edge, and the outer surface of the compression sealing strip is movably overlapped with the outer surface of the protective cover.

[0012] Preferably, a downward pressure guide tube is fixedly connected to one side surface of the sealing sleeve, an air hole is opened on the outer surface of the bottom end of the downward pressure guide tube, a downward pressure support rod is movably sleeved on the inner wall of the downward pressure guide tube, and an elastic buffer wire is movably sleeved on the outer surface of the downward pressure support rod and located on the inner wall of the downward pressure guide tube.

[0013] Preferably, the bottom surface of the second overlapping support plate is movably overlapped with the top surface of the protective cover, and the position of the second overlapping support plate is set at the top edge of the downward pressure guide pipe.

[0014] The beneficial effects of this utility model are:

[0015] This utility model provides a protective device for the pressure element of a hydraulic support. When the pressure of the fluid inside the oil pipe and the protective cover is released and impacted, the employee steps on the top surface of the anti-slip stepping mechanism, causing the sealing sleeve to press down on the surface of the protective cover, thereby causing one end of the hook to fall off the surface of the screw rod. At this time, the employee squeezes and pushes the bottom end of the sealing sleeve to one side. After the hook is completely detached from the surface of the screw rod, the elastic wire inside the sealing sleeve elastically pushes one end of the protective cover, causing the hook to move to the top edge of the screw rod. The employee can then manually remove the sealing sleeve later.

[0016] This utility model provides a protective device for the pressure element of a hydraulic support. When an employee steps on the top surface of the anti-slip stepping mechanism, the overlapping support plate on the inner side wall of the top of the sealing sleeve overlaps with the top surface of the protective cover. As the sealing sleeve continues to press down, the elastic wire is compressed. At this time, the employee swings back and forth on the surface of the anti-slip stepping mechanism, thereby adjusting the angle of the hook on the bottom surface of the sealing sleeve, so that the hook can be effectively attached to or removed from the surface of the screw rod. Attached Figure Description

[0017] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

[0018] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0019] Figure 2 This is a three-dimensional structural diagram of the protective cover in this utility model;

[0020] Figure 3 This is a schematic diagram of the three-dimensional structure of the swinging sealing sleeve in this utility model;

[0021] Figure 4 This is a cross-sectional three-dimensional structural diagram of the sealing sleeve in this utility model;

[0022] Figure 5 This is a three-dimensional structural diagram of the downward support rod in this utility model;

[0023] Figure 6 This is a three-dimensional structural diagram of the anti-slip stepping mechanism in this utility model.

[0024] Legend: 11. Hydraulic support; 111. Oil guide pipe; 112. Protective cover; 113. Screw rod; 114. Overlap support plate one; 12. Sealing sleeve; 121. Hook; 122. Anti-slip stepping mechanism; 123. Elastic wire; 124. Overlap support plate two; 125. Extrusion sealing strip; 126. Downward guide pipe; 127. Air hole; 128. Downward support rod; 129. Elastic buffer wire. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0026] Specific implementation examples are given below.

[0027] Please see Figures 1-6 This utility model provides a protective device for a hydraulic support pressure element, including a sealing sleeve 12, an anti-slip stepping mechanism 122 is provided on the outer surface of the sealing sleeve 12, hooks 121 are fixedly connected to both sides of the sealing sleeve 12 and at the bottom edge, a screw rod 113 is movably sleeved on the outer surface of the hooks 121, and a protective cover 112 is provided on the outer surface of the screw rod 113.

[0028] Specifically, after the pressure of the liquid inside the oil guide pipe 111 and the protective cover 112 is released and impacted, the employee steps on the top surface of the anti-slip stepping mechanism 122, causing the sealing sleeve 12 to press down on the surface of the protective cover 112, thereby causing one end of the hook 121 to fall off the surface of the screw rod 113. At this time, the employee pushes the bottom end of the sealing sleeve 12 to one side. When the hook 121 is completely detached from the surface of the screw rod 113, the elastic wire 123 inside the sealing sleeve 12 is used to elastically push one end of the protective cover 112, causing the height of the hook 121 to move to the top edge of the screw rod 113. Later, the employee can manually remove the sealing sleeve 12.

[0029] By having employees step on the surface of the anti-slip stepping mechanism 122, the hook 121 on one end of the sealing sleeve 12 is disengaged from the surface of the screw rod 113. This eliminates the need for employees to disassemble the sealing sleeve 12 with screws, greatly reducing the risk of burns or impacts caused by residual pressure liquid inside the protective cover 112 when employees manually disassemble the sealing sleeve 12.

[0030] An anti-slip soft pad is fixedly connected to the top surface of the anti-slip stepping mechanism 122, and a wrapping arc-shaped soft plate is provided on one side surface of the anti-slip soft pad and on the top surface of the anti-slip soft pad.

[0031] In some embodiments, such as Figures 1 to 6As shown, an overlapping support plate 114 is fixedly connected to the bottom surface of the protective cover 112, a hydraulic support 11 is fixedly connected to the other end of the oil guide pipe 111, an elastic wire 123 is fixedly connected to the top inner wall of the sealing sleeve 12, an overlapping support plate 124 is fixedly connected to one end of the elastic wire 123, and a compression sealing strip 125 is fixedly connected to the inner wall of the sealing sleeve 12 at the bottom edge, with the outer surface of the compression sealing strip 125 movably overlapping the outer surface of the protective cover 112.

[0032] When an employee steps on the top surface of the anti-slip stepping mechanism 122, the overlapping support plate 124 on the inner side wall of the top of the sealing sleeve 12 overlaps with the top surface of the protective cover 112. As the sealing sleeve 12 continues to press down, the elastic wire 123 is compressed. At this time, the employee swings back and forth on the surface of the anti-slip stepping mechanism 122, thereby adjusting the angle of the hook 121 on the bottom surface of the sealing sleeve 12, so that the hook 121 can be effectively attached to the surface of the screw rod 113 or removed from the surface of the screw rod 113.

[0033] When the hook 121 is attached to the top surface of the screw rod 113, the overlapping support plate 124 will overlap the top surface of the protective cover 112. At this time, the compressed elastic wire 123 will push the sealing sleeve 12 in the opposite direction, so that the hook 121 can be firmly fixed on the surface of the screw rod 113, and the sealing sleeve 12 will not fall off due to external factors.

[0034] Furthermore, such as Figures 1 to 6 As shown, a vent hole is provided on the outer surface of the protective cover 112, an oil guide pipe 111 is provided on the bottom surface of the protective cover 112, a downward pressure guide pipe 126 is fixedly connected to one side surface of the sealing sleeve 12, an air hole 127 is provided on the outer surface of the bottom end of the downward pressure guide pipe 126, a downward pressure support rod 128 is movably sleeved on the inner wall of the downward pressure guide pipe 126, an elastic buffer wire 129 is movably sleeved on the outer surface of the downward pressure support rod 128 and located on the inner wall of the downward pressure guide pipe 126, and the bottom surface of the overlapping support plate 124 is movably overlapping the top surface of the protective cover 112, and the position of the overlapping support plate 124 is located at the top edge of the downward pressure guide pipe 126.

[0035] During operation, when the sealing sleeve 12 is fitted onto the surface of the protective cover 112, the compression sealing strip 125 on the inner wall of the sealing sleeve 12 is elastically pressed against the outer surface of the protective cover 112. At this time, the compression sealing strip 125, combined with its padding properties, ensures that the protective cover 112 remains in the center position of the sealing sleeve 12, preventing one side of the sealing sleeve 12 from being too biased towards the surface of the protective cover 112.

[0036] When the pressurized liquid sprayed from inside the protective cover 112 is poured into the sealing sleeve 12, it works in conjunction with the compression sealing strip 125 to seal the space between the sealing sleeve 12 and the protective cover 112. The pressurized liquid sprayed from the protective cover 112 will first accumulate in the gap between the sealing sleeve 12 and the protective cover 112. At this time, the excess pressurized liquid will be poured into the interior of the downward guide pipe 126. The accumulation of pressurized liquid will then press down on the top surface of the downward support rod 128. The excess pressurized liquid will be discharged through the vent 127. By filling, pouring, and squeezing the pressurized liquid for discharge, the impact velocity of the pressurized liquid is reduced.

[0037] Working principle: When the pressure of the liquid inside the oil guide pipe 111 and the protective cover 112 is released and impacted, the employee steps on the top surface of the anti-slip stepping mechanism 122, causing the sealing sleeve 12 to press down on the surface of the protective cover 112, thereby causing one end of the hook 121 to fall off the surface of the screw rod 113. At this time, the employee pushes the bottom end of the sealing sleeve 12 to one side. When the hook 121 is completely detached from the surface of the screw rod 113, the elastic wire 123 inside the sealing sleeve 12 elastically pushes one end of the protective cover 112, causing the height of the hook 121 to move to the top edge of the screw rod 113. The sealing sleeve 12 is then manually removed by the employee.

[0038] By having employees step on the surface of the anti-slip stepping mechanism 122, the hook 121 on one end of the sealing sleeve 12 is disengaged from the surface of the screw rod 113. This eliminates the need for employees to disassemble the sealing sleeve 12 with screws, greatly reducing the risk of burns or impacts caused by residual pressure liquid inside the protective cover 112 when employees manually disassemble the sealing sleeve 12.

[0039] When an employee steps on the top surface of the anti-slip stepping mechanism 122, the overlapping support plate 124 on the inner side wall of the top of the sealing sleeve 12 overlaps on the top surface of the protective cover 112. As the sealing sleeve 12 continues to press down, the elastic wire 123 is compressed. At this time, the employee swings back and forth on the surface of the anti-slip stepping mechanism 122, thereby adjusting the angle of the hook 121 on the bottom surface of the sealing sleeve 12, so that the hook 121 can be effectively attached to the surface of the screw rod 113 or removed from the surface of the screw rod 113.

[0040] When the hook 121 is sleeved on the top surface of the screw rod 113, the overlapping support plate 124 will overlap on the top surface of the protective cover 112. At this time, the compressed elastic wire 123 will push the sealing sleeve 12 in the opposite direction, so that the hook 121 can be firmly fixed on the surface of the screw rod 113, and the sealing sleeve 12 will not fall off due to external factors.

[0041] When the pressurized liquid sprayed from inside the protective cover 112 is poured into the sealing sleeve 12, it works in conjunction with the compression sealing strip 125 to seal the space between the sealing sleeve 12 and the protective cover 112. The pressurized liquid sprayed from the protective cover 112 will first accumulate in the gap between the sealing sleeve 12 and the protective cover 112. At this time, the excess pressurized liquid will be poured into the interior of the downward guide pipe 126. The accumulation of pressurized liquid will then press down on the top surface of the downward support rod 128. The excess pressurized liquid will be discharged through the vent 127. By filling, pouring, and squeezing the pressurized liquid for discharge, the impact velocity of the pressurized liquid is reduced.

[0042] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A protective device for a hydraulic support pressure element, comprising a sealing sleeve, characterized in that: An anti-slip stepping mechanism is provided on the outer surface of the sealing sleeve. Hooks are fixedly connected to both sides of the sealing sleeve and at the bottom edge. A screw rod is movably sleeved on the outer surface of the hook. A protective cover is provided on the outer surface of the screw rod.

2. The protective device for a hydraulic support pressure element according to claim 1, characterized in that: The outer surface of the protective cover is provided with ventilation holes, and the bottom surface of the protective cover is provided with an oil guide pipe.

3. The protective device for a hydraulic support pressure element according to claim 2, characterized in that: A lap support plate is fixedly connected to the bottom surface of the protective cover, and a hydraulic support is fixedly connected to the other end of the oil guide pipe.

4. The protective device for a hydraulic support pressure element according to claim 3, characterized in that: An elastic wire is fixedly connected to the inner top wall of the sealing sleeve, and an overlapping support plate is fixedly connected to one end of the elastic wire.

5. A protective device for a hydraulic support pressure element according to claim 4, characterized in that: A compression sealing strip is fixedly connected to the inner wall of the sealing sleeve at the bottom edge, and the outer surface of the compression sealing strip is movably overlapped with the outer surface of the protective cover.

6. The protective device for a hydraulic support pressure element according to claim 5, characterized in that: A downward pressure guide tube is fixedly connected to one side surface of the sealing sleeve. An air hole is opened on the outer surface of the bottom end of the downward pressure guide tube. A downward pressure support rod is movably sleeved on the inner wall of the downward pressure guide tube. An elastic buffer wire is movably sleeved on the outer surface of the downward pressure support rod and located on the inner wall of the downward pressure guide tube.

7. A protective device for a hydraulic support pressure element according to claim 6, characterized in that: The bottom surface of the second overlapping support plate is movably overlapped with the top surface of the protective cover, and the position of the second overlapping support plate is set at the top edge of the downward pressure guide pipe.

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