Pulling device for top cover of single hydraulic prop piston vent valve

Abstract

The utility model relates to the technical field of mechanical engineering, in particular to a single hydraulic prop piston vent valve top cover puller which comprises a shell, and a barrel is fixedly arranged at the bottom end of the shell. Through the arrangement of the fixing column, the connecting plate, the positioning column, the baffles and the rubber pad, when the fixing nut needs to be disassembled, the threaded rod is rotated to enable the fixing column to move along the surface of the threaded rod so as to drive the connecting plate, the positioning column and the baffles to move, the baffles abut against the two sides of the fixing nut through the arrangement of the baffles, and the whole device is rotated; then the threaded rod is rotated reversely, the distance between the baffles on the two sides is consistent with the width of the top cover of the vent valve, the top cover of the vent valve is clamped and fixed, the friction force between the baffles and the top cover can be increased through rubber pads, and the situation that the top cover is abraded by the rough surfaces of the baffles can be avoided; therefore, the effect that the surface of the top cover is prevented from being abraded while the top cover of the vent valve is detached is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical engineering, and particularly relates to a puller for the top cover of a piston vent valve of a single hydraulic prop. Background Technique

[0002] In fields such as mines, construction, and heavy equipment, single hydraulic props are widely used to support the ground to prevent collapse or subsidence. One of the core components of a single hydraulic prop is the piston vent valve, which is responsible for regulating the oil pressure inside the prop, thereby realizing the lifting control of the prop. The piston vent valve is installed in the piston chamber of the prop, and its upper part is covered with a top cover, which is usually fixed by a nut. When the top cover has been used for too long, it needs to be disassembled and replaced.

[0003] However, the existing vent valve pullers have the following disadvantages:

[0004] (1) The existing vent valve pullers have a weak disassembly function. When in use, disassembly tools such as ratchet wrenches or pneumatic wrenches are usually used to manually disassemble the fixing nut and the top cover, which easily causes the problem of wear on the surface of the top cover.

[0005] (2) The existing vent valve pullers have a weak adjustment function. When in use, since the models of the fixing nuts for fixing the top covers of different piston vent valves are inconsistent, it is necessary to equip a variety of different models of wrenches, which easily causes the problem of increasing the disassembly cost of the piston vent valve top cover. Content of the Utility Model

[0006] The purpose of the utility model is to provide a puller for the top cover of a piston vent valve of a single hydraulic prop to solve the problems put forward in the above background technique.

[0007] To achieve the above purpose, the utility model provides the following technical solution:

[0008] A puller for the top cover of a piston vent valve of a single hydraulic prop includes a housing. A cylinder is fixedly arranged at the bottom end of the housing. First installation grooves are respectively opened on both sides inside the housing. One side inside the first installation groove is rotatably provided with a threaded rod through a rotating shaft. A clamping component is fixedly arranged at one end of the threaded rod. The clamping component includes a fixed column, a connecting plate, a positioning column, a baffle plate, and a rubber pad. A fixed column is sleeved on one end of the threaded rod in a threaded manner. One end of the fixed column passes through one side of the housing and is fixedly provided with a connecting plate. A plurality of positioning columns are fixedly arranged on one side of the connecting plate. One end of the positioning column passes through one side of the cylinder and is fixedly provided with a baffle plate. A rubber pad is fixedly arranged on one side of the baffle plate;

[0009] A second mounting groove is provided in the middle of the shell, an adjusting assembly is fixedly provided inside the second mounting groove, the adjusting assembly comprises a connecting rod, a first trapezoidal gear and a second trapezoidal gear, connecting rods are provided on both sides of the top end of the second mounting groove for rotation via a rotating shaft, a first trapezoidal gear is fixedly provided at the bottom end of the connecting rod, a second trapezoidal gear is fixedly provided on the surface of the threaded rod, and the first trapezoidal gear is meshingly connected with the second trapezoidal gear.

[0010] Preferably, a third trapezoidal gear is fixedly provided on the surface of the connecting rod, and the third trapezoidal gear is located inside the second mounting groove.

[0011] Preferably, a rotating rod is rotatably arranged in the middle of the bottom end of the second installation groove via a rotating shaft, and a fourth trapezoidal gear is fixedly arranged on the surface of the rotating rod.

[0012] Preferably, a rotating block is fixedly provided on the top end of the rotating rod through the top end of the shell, and an anti-slip sleeve is fixedly provided on the surface of the rotating block.

[0013] Preferably, pull rods are fixedly provided on both sides of the shell, first connecting holes are opened on both sides of the shell, and the fixing columns are movably connected to the first connecting holes.

[0014] Preferably, a plurality of second connection holes are provided on both sides of the cylinder, and the positioning posts are movably connected to the second connection holes.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. A single-body hydraulic prop piston ventilation valve top cover puller, through the arrangement of a fixing column, a connecting plate, a positioning column, a baffle and a rubber pad, when it is necessary to remove the fixing nut, the threaded rod is rotated to make the fixing column move along the surface of the threaded rod, thereby driving the connecting plate, the positioning column and the baffle to move, and through the arrangement of multiple baffles, the baffles are pressed against both sides of the fixing nut, the overall device is rotated to make the fixing nut fall off, and then the threaded rod is rotated in the opposite direction to make the distance between the baffles on both sides consistent with the width of the ventilation valve top cover, so that the ventilation valve top cover is clamped and fixed, and the rubber pad can increase the friction between the baffle and the top cover, and can prevent the rough surface of the baffle from causing wear to the top cover, thereby achieving the effect of avoiding wear to the surface of the top cover while removing the ventilation valve top cover.

[0017] The single hydraulic prop piston vent valve top cover extractor, through the settings of the connecting rod, the first trapezoidal gear and the second trapezoidal gear, when the widths of the fixing nuts to be disassembled are inconsistent, rotate the connecting rod to drive the first trapezoidal gear at the bottom end of the connecting rod to rotate, and the first trapezoidal gear drives the second trapezoidal gear to rotate. By adjusting the rotation direction of the connecting rod, the rotation direction of the second trapezoidal gear is controlled, which is convenient for the operator to control the rotation direction of the threaded rod according to the actual situation, so as to achieve the effect of facilitating the adjustment of the distance between different baffles, being applicable to various fixing nuts of different sizes, and reducing the disassembly cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 is a schematic diagram of the internal structure of the present invention;

[0020] Figure 3 is the Figure 1 enlarged schematic diagram at A in the present invention;

[0021] Figure 4 is the Figure 2 enlarged schematic diagram at B in the present invention.

[0022] In the figure: 1, housing; 2, cylinder; 3, first installation groove; 4, threaded rod; 5, fixed column; 6, connecting plate; 7, positioning column; 8, baffle; 9, rubber pad; 10, second installation groove; 11, connecting rod; 12, first trapezoidal gear; 13, second trapezoidal gear; 14, third trapezoidal gear; 15, rotating rod; 16, fourth trapezoidal gear; 17, rotating block; 18, anti-slip sleeve; 19, pull rod; 20, first connection hole; 21, second connection hole. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0024] Please refer to Figures 1-4As shown in the figure, a technical solution provided by the utility model is as follows: a single hydraulic prop piston vent valve top cover puller, which includes a housing 1. A cylinder 2 is fixedly arranged at the bottom end of the housing 1. First installation grooves 3 are opened on both sides inside the housing 1. One side inside the first installation groove 3 is rotatably provided with a threaded rod 4 through a rotating shaft. A clamping component is fixedly arranged at one end of the threaded rod 4. The clamping component includes a fixed column 5, a connecting plate 6, a positioning column 7, a baffle 8 and a rubber pad 9. A fixed column 5 is sleeved on one end of the threaded rod 4 in a threaded manner. One end of the fixed column 5 passes through one side of the housing 1 and is fixedly provided with a connecting plate 6. A plurality of positioning columns 7 are fixedly arranged on one side of the connecting plate 6. One end of the positioning column 7 passes through one side of the cylinder 2 and is fixedly provided with a baffle 8. A rubber pad 9 is fixedly arranged on one side of the baffle 8;

[0025] In this embodiment, through the settings of the fixed column 5, the connecting plate 6, the positioning column 7, the baffle 8 and the rubber pad 9, when it is necessary to disassemble the fixing nut, rotate the threaded rod 4 to make the fixed column 5 move along the surface of the threaded rod 4, thereby driving the connecting plate 6, the positioning column 7 and the baffle 8 to move. Through the settings of multiple baffles 8, the baffles 8 are made to resist both sides of the fixing nut, rotate the whole device to make the fixing nut fall off, and then rotate the threaded rod 4 in the reverse direction to make the distance between the two baffles 8 consistent with the width of the vent valve top cover, and clamp and fix the vent valve top cover. The rubber pad 9 can increase the friction between the baffle 8 and the top cover, and can avoid the rough surface of the baffle 8 from wearing the top cover, thereby achieving the effect of avoiding wearing the surface of the top cover while disassembling the vent valve top cover;

[0026] As Figure 4 shown, a second installation groove 10 is opened in the middle inside the housing 1. An adjusting component is fixedly arranged inside the second installation groove 10. The adjusting component includes a connecting rod 11, a first trapezoidal gear 12 and a second trapezoidal gear 13. Both sides at the top end inside the second installation groove 10 are rotatably provided with a connecting rod 11 through a rotating shaft. A first trapezoidal gear 12 is fixedly arranged at the bottom end of the connecting rod 11. A second trapezoidal gear 13 is fixedly arranged on the surface of the threaded rod 4. The first trapezoidal gear 12 is meshed and connected with the second trapezoidal gear 13;

[0027] In this embodiment, through the settings of the connecting rod 11, the first trapezoidal gear 12 and the second trapezoidal gear 13, when the widths of the fixing nuts to be disassembled are inconsistent, rotate the connecting rod 11 to drive the first trapezoidal gear 12 at the bottom end of the connecting rod 11 to rotate. The first trapezoidal gear 12 drives the second trapezoidal gear 13 to rotate. By adjusting the rotation direction of the connecting rod 11, the rotation direction of the second trapezoidal gear 13 is controlled, which is convenient for the operator to control the rotation direction of the threaded rod 4 according to the actual situation, thereby achieving the effect of facilitating the adjustment of the distance between different baffles 8, being applicable to various fixing nuts of different sizes, and reducing the disassembly cost;

[0028] As Figure 3 and Figure 4As shown, a third trapezoidal gear 14 is fixedly arranged on the surface of the connecting rod 11. The third trapezoidal gear 14 is located inside the second installation groove 10. A rotating rod 15 is rotatably arranged in the middle of the inner bottom end of the second installation groove 10 through a rotating shaft. A fourth trapezoidal gear 16 is fixedly arranged on the surface of the rotating rod 15. The top end of the rotating rod 15 passes through the top end of the housing 1 and is fixedly provided with a rotating block 17. An anti-slip sleeve 18 is fixedly arranged on the surface of the rotating block 17;

[0029] In this embodiment, through the arrangement of the third trapezoidal gear 14, the rotating rod 15, the fourth trapezoidal gear 16 and the rotating block 17, when it is necessary to control the rotation direction of the connecting rod 11, rotate the rotating block 17. The rotating block 17 drives the rotating rod 15 to rotate. The rotating rod 15 drives the fourth trapezoidal gear 16 to rotate. The fourth trapezoidal gear 16 drives the third trapezoidal gears 14 on both sides to rotate, so as to achieve the effect of facilitating the operator to control the rotation direction of the connecting rod 11. Through the arrangement of the anti-slip sleeve 18, the friction between the operator's hand and the rotating block 17 can be increased during use, so as to achieve the effect of avoiding slipping during the rotation of the rotating block 17;

[0030] As Figure 1 and Figure 2 shown, pull rods 19 are fixedly arranged on both sides of the housing 1. First connection holes 20 are opened on both sides of the housing 1. The fixed column 5 is movably connected with the first connection holes 20. A plurality of second connection holes 21 are opened on both sides of the cylinder body 2. The positioning column 7 is movably connected with the second connection holes 21;

[0031] In this embodiment, through the arrangement of the pull rod 19, when the bottom baffle 8 of the whole device clamps and fixes the fixing bolt or the top cover, hold the pull rod 19 and rotate or pull the whole device, so as to achieve the effect of facilitating the operator to rotate or pull the whole device.

[0032] Working principle: Through the settings of the fixing column 5, connecting plate 6, positioning column 7, baffle 8 and rubber pad 9, when it is necessary to disassemble the fixing nut, rotate the threaded rod 4, so that the fixing column 5 moves along the surface of the threaded rod 4, thereby driving the connecting plate 6, positioning column 7 and baffle 8 to move. Through the settings of multiple baffles 8, the baffle 8 abuts against both sides of the fixing nut. Rotate the whole device to make the fixing nut fall off. Then rotate the threaded rod 4 in the reverse direction to make the distance between the two baffles 8 consistent with the width of the top cover of the vent valve, and clamp and fix the top cover of the vent valve. The rubber pad 9 can increase the friction between the baffle 8 and the top cover, and can prevent the rough surface of the baffle 8 from wearing the top cover, so as to achieve the effect of avoiding wearing the surface of the top cover while disassembling the top cover of the vent valve. At the same time, through the settings of the connecting rod 11, the first trapezoidal gear 12 and the second trapezoidal gear 13, when the widths of the fixing nuts to be disassembled are inconsistent, rotate the connecting rod 11 to drive the first trapezoidal gear 12 at the bottom end of the connecting rod 11 to rotate, and the first trapezoidal gear 12 drives the second trapezoidal gear 13 to rotate. By adjusting the rotation direction of the connecting rod 11, the rotation direction of the second trapezoidal gear 13 is controlled, which is convenient for the operator to control the rotation direction of the threaded rod 4 according to the actual situation, so as to achieve the effect of facilitating the adjustment of the distance between different baffles 8, being applicable to various fixing nuts of different sizes, and reducing the disassembly cost. Through the settings of the third trapezoidal gear 14, the rotating rod 15, the fourth trapezoidal gear 16 and the rotating block 17, when it is necessary to control the rotation direction of the connecting rod 11, rotate the rotating block 17, the rotating block 17 drives the rotating rod 15 to rotate, the rotating rod 15 drives the fourth trapezoidal gear 16 to rotate, and the fourth trapezoidal gear 16 drives the two third trapezoidal gears 14 to rotate, so as to achieve the effect of facilitating the operator to control the rotation direction of the connecting rod 11. Through the setting of the anti-slip sleeve 18, the friction between the operator's hand and the rotating block 17 can be increased during use, so as to achieve the effect of avoiding slipping during the rotation of the rotating block 17. Through the setting of the pull rod 19, when the bottom baffle 8 of the whole device clamps and fixes the fixing bolt or the top cover, hold the pull rod 19 and rotate or pull the whole device, so as to achieve the effect of facilitating the operator to rotate or pull the whole device.

[0033] The above shows and describes the basic principle, main features and advantages of the present utility model. Those skilled in the art should understand that the present utility model is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only preferred examples of the present utility model, and are not used to limit the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A single hydraulic prop piston vent valve top cover puller, characterized in that: include A shell (1), wherein a cylinder (2) is fixedly arranged at the bottom end of the shell (1), first installation grooves (3) are provided on both sides of the interior of the shell (1), a threaded rod (4) is rotatably arranged on one side of the interior of the first installation groove (3), a clamping assembly is fixedly arranged on one end of the threaded rod (4), and the clamping assembly comprises a fixing column (5), a connecting plate (6), a positioning column (7), a baffle (8) and a rubber pad (9), a fixing column (5) is threadedly sleeved on one end of the threaded rod (4), one end of the fixing column (5) passes through one side of the shell (1) and is fixedly arranged with a connecting plate (6), one side of the connecting plate (6) is fixedly arranged with a plurality of positioning columns (7), one end of the positioning column (7) passes through one side of the cylinder (2) and is fixedly arranged with a baffle (8), and one side of the baffle (8) is fixedly arranged with a rubber pad (9); A second mounting groove (10) is provided in the middle of the housing (1), an adjustment assembly is fixedly arranged in the second mounting groove (10), and the adjustment assembly comprises a connecting rod (11), a first trapezoidal gear (12) and a second trapezoidal gear (13). Connecting rods (11) are rotatably arranged on both sides of the top end of the second mounting groove (10) via a rotating shaft, the first trapezoidal gear (12) is fixedly arranged at the bottom end of the connecting rod (11), and the second trapezoidal gear (13) is fixedly arranged on the surface of the threaded rod (4), and the first trapezoidal gear (12) is meshingly connected with the second trapezoidal gear (13).

2. A single-body hydraulic prop piston vent valve top cover puller according to claim 1, characterized in that: A third trapezoidal gear (14) is fixedly arranged on the surface of the connecting rod (11), and the third trapezoidal gear (14) is located inside the second installation groove (10).

3. A single-body hydraulic prop piston vent valve top cover puller according to claim 1, characterized in that: A rotating rod (15) is rotatably arranged in the middle of the bottom end of the second mounting groove (10) via a rotating shaft, and a fourth trapezoidal gear (16) is fixedly arranged on the surface of the rotating rod (15).

4. A single-body hydraulic prop piston vent valve top cover puller according to claim 3, characterized in that: The top end of the rotating rod (15) passes through the top end of the housing (1) and is fixedly provided with a rotating block (17), and the surface of the rotating block (17) is fixedly provided with an anti-slip sleeve (18).

5. The single-body hydraulic prop piston vent valve top cover puller according to claim 1, characterized in that: Pull rods (19) are fixedly provided on both sides of the shell (1), first connection holes (20) are opened on both sides of the shell (1), and the fixing columns (5) are movably connected to the first connection holes (20).

6. A single-body hydraulic prop piston vent valve top cover puller according to claim 1, characterized in that: A plurality of second connection holes (21) are provided on both sides of the cylinder (2), and the positioning posts (7) are movably connected to the second connection holes (21).

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