Disc insulator water pressure testing tool

Abstract

The utility model discloses a disc insulator water pressure testing tool, which belongs to the technical field of insulator testing and comprises a testing table and supporting legs fixedly mounted at the bottom of the testing table close to four corners, a testing frame is fixedly mounted in the middle of the top of the testing table, and a translation plate is arranged above the top of the testing frame. Moving assemblies are jointly mounted at the bottom of the translation plate close to the left and right sides, and push-out assemblies are jointly mounted at the left and right sides of the test board close to the bottom; through mutual cooperation of a connecting rod, a movable rack plate, a movable gear, a transmission rod, a worm, a worm gear, a reciprocating lead screw, a lead screw nut, a sliding plate, a sliding rod, a flat plate, a bearing rod and an L-shaped movable rod, when a pressing plate moves backwards, a material pushing plate can be driven to move upwards to the outer side of a testing frame; and a worker can conveniently place the insulator before testing and take out the insulator after testing, so that the testing efficiency of the device is further improved.

Description

Technical Field

[0001] This utility model relates to the technical field of insulator testing, specifically to a disc-type insulator hydrostatic testing fixture. Background Technology

[0002] An insulator is a special type of insulating component that plays a crucial role in overhead power transmission lines. In the past, insulators were primarily used on utility poles. Gradually, they evolved into disc-shaped insulators hung at one end of high-voltage power line towers to increase creepage distance. These are typically made of glass or ceramic and are called insulators. Before use, the water pressure inside each insulator must be tested.

[0003] A device for detecting internal water pressure in a suspension insulator, as disclosed in CN202120326787.6, includes a base. Four support columns are fixedly connected to the upper wall of the base. A top plate is fixedly connected to the upper ends of the four support columns. A hydraulic cylinder is fixedly connected to the upper wall of the top plate. A movable plate is fixedly connected to the telescopic end of the hydraulic cylinder. All four support columns penetrate the side wall of the movable plate. A connecting rod is fixedly connected to the lower end of the movable plate. A baffle is fixedly connected to the lower end of the connecting rod. A test box is fixedly connected to the upper wall of the base. A high-pressure water pump is fixedly connected to the upper wall of the base. A connecting pipe is connected to the inlet end of the high-pressure water pump. This invention can improve the rejection rate of defective ceramic parts, effectively guarantee product performance, reduce risks during use, and prevent the insulator's shaking from affecting the accuracy of the test results.

[0004] The suspension insulator internal water pressure testing device proposed in the aforementioned patent can clamp and test the insulator, but the operation of taking out the tested insulator is cumbersome. If the insulator is damaged during testing, taking it out is even more cumbersome, which is not conducive to the handling of the staff, reduces the testing efficiency of the device, and the use effect is not good.

[0005] To address the above issues, a disc-type insulator hydrostatic testing fixture is proposed. Utility Model Content

[0006] The purpose of this invention is to provide a hydraulic pressure testing fixture for disc insulators. By using this device, the problems mentioned in the background can be solved.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a disc insulator water pressure testing fixture, comprising a test platform and support legs fixedly installed at the bottom of the test platform near the four corners. A test frame is fixedly installed at the center of the top of the test platform, and a translation plate is provided above the top of the test frame. A moving component is installed at the bottom of the translation plate near the left and right sides, and a pushing component is installed at the left and right sides of the test platform near the bottom. A hydraulic push rod is fixedly installed at the center of the top of the translation plate. A circular opening is provided at the center of the translation plate, and the power end of the hydraulic push rod passes through the inner cavity of the circular opening and is fixedly installed with a push plate. A vertical rod is fixedly installed at the bottom of the push plate near the four corners, and a pressure plate is fixedly installed at the lower end of the vertical rod. A push plate is attached to the lower part of the inner cavity of the test frame.

[0008] The moving component includes fixed rods fixedly installed on the bottom of the translation plate near the left and right sides, and threaded sleeves fixedly installed on the lower ends of the fixed rods. Threaded rods are threaded through the middle of the threaded sleeves, and side plates are movably installed at the front ends of the threaded rods. The opposite sides of the side plates are fixedly installed on the test platform, and a fixed plate is provided on the rear side of the test platform near the middle. The rear ends of the threaded rods extend movably through to the outside of the fixed plate. A servo motor is provided on the rear side of the fixed plate near the left side. The output end of the servo motor is fixedly connected to the rear end of the left threaded rod, and a synchronous pulley is fixedly sleeved on the output end of the threaded rod. A synchronous belt is sleeved on the outer side of the synchronous pulleys.

[0009] Furthermore, a support plate is fixedly installed on the front side of the fixed plate near the middle, and support columns are fixedly installed on the bottom of the support plate near the left and right sides respectively. An L-shaped plate is fixedly installed on the rear side of the fixed plate near the left side, and the rear side of the servo motor is fixedly installed on the inner wall of the inner side of the L-shaped plate.

[0010] Furthermore, guide plates are fixedly installed on the left side of the threaded sleeve, and guide rods are slidably installed through the guide plates. The two ends of the guide rods are fixedly installed on the fixed plate and the adjacent side plate, respectively.

[0011] Furthermore, a discharge pipe is fixedly installed through the front side of the test frame near the bottom, and a valve is provided on the outside of the discharge pipe. A high-pressure water pump is fixedly installed on the right side of the test frame near the bottom. A connecting pipe is fixedly installed on the front side of the high-pressure water pump. The left end of the connecting pipe is fixedly extended through the inner cavity of the test frame, and a connecting pipe is fixedly installed on the rear side of the high-pressure water pump.

[0012] Furthermore, positioning plates are attached to the top of the pusher plate near the left and right sides, and connecting plates are fixedly installed on the front and rear sides of the positioning plates. Vertical plates are provided on the outer side of the connecting plates, and the bottom of the vertical plates are fixedly installed on the pusher plate. Limiting rods are slidably installed through the vertical plates, and the inner ends of the limiting rods are fixedly installed on the adjacent connecting plates. Reset springs are sleeved on the outer side of the limiting rods, and the two ends of the reset springs are fixedly installed on the adjacent connecting plates and vertical plates.

[0013] Furthermore, the ejection assembly includes connecting rods respectively disposed on the left and right sides of the test platform near the bottom, and movable rack plates respectively fixedly installed on the lower ends of the connecting rods. The upper ends of the connecting rods are respectively fixedly installed on adjacent threaded sleeves. A movable gear meshes with the bottom of the movable rack plate near the rear side. A transmission rod is fixedly installed on the opposite side of the movable gear. A groove is formed in the middle of the top of the test platform, and rectangular openings are formed on the left and right sides of the groove's inner cavity. The opposite ends of the transmission rods pass through the inner cavities of the adjacent rectangular openings and extend into the inner cavity of the groove. The output shafts of the rods are movably mounted with straight plates via bearings. The bottoms of the straight plates are fixedly mounted on the inner walls of the groove cavity. A worm gear is fixedly mounted on the opposite ends of the transmission rods. A worm wheel meshes with the output end of the worm gear. A movable rod is fixedly mounted through the middle of the worm wheel. The lower end of the movable rod is movably mounted on the inner wall of the groove cavity. A reciprocating screw is fixedly sleeved on the outer side of the movable rod near the upper end. A screw nut is movably mounted on the outer side of the reciprocating screw. L-shaped moving rods are fixedly mounted on the front and rear sides of the screw nut. The upper ends of the L-shaped moving rods are fixedly mounted on the push plate.

[0014] Furthermore, sliding plates are fixedly installed on the left and right sides of the lead screw nut, and sliding rods are slidably installed through the sliding plates. A plate is fixedly installed on the upper end of the sliding rods, and the upper end of the movable rod is movably installed on the plate. Bearing rods are fixedly installed on the bottom of the plate near the left and right sides, and the lower ends of the bearing rods are fixedly installed on the inner wall of the groove cavity.

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

[0016] 1. Through the cooperation of components such as fixed rod, threaded sleeve, guide plate, guide rod, threaded rod, side plate, fixed plate, support plate, support column, L-shaped plate, servo motor and synchronous belt, the pressure plate can be moved back and forth, which is convenient for workers to place and pick up insulators, and avoids the pressure plate being above the test frame, which would result in a narrow operating space, thus effectively improving the performance of the device.

[0017] 2. Through the cooperation of components such as connecting rod, moving rack plate, movable gear, transmission rod, worm gear, worm wheel, reciprocating screw, screw nut, sliding plate, sliding rod, plate, bearing rod and L-shaped moving rod, the push plate can be driven to move upward to the outside of the test frame when the pressure plate moves backward. This facilitates the placement of insulators before testing and the removal of insulators after testing, further improving the testing efficiency of the device.

[0018] 3. Through the cooperation of components such as positioning plate, connecting plate, vertical plate, limiting rod and return spring, the insulator to be tested can be clamped and fixed, which effectively improves the stability of the insulator during testing. The setting of return spring is conducive to clamping and positioning insulators of different sizes, which has a wider range of applications. In addition, the inner side of the positioning plate is provided with soft pads, which play a protective role when clamping and positioning the insulator, resulting in better performance. Attached Figure Description

[0019] Figure 1 This is a perspective view of the entire utility model;

[0020] Figure 2 This is a rear perspective view of the present invention;

[0021] Figure 3 This is a right-side perspective view of the present invention;

[0022] Figure 4 This is a partial cross-sectional perspective view of the present invention;

[0023] Figure 5 This is a partial cross-sectional perspective view of the test platform of this utility model.

[0024] Figure 6 This is a partial three-dimensional view of the reciprocating lead screw of this utility model;

[0025] Figure 7 This is a partial bottom perspective view of the pusher plate of this utility model;

[0026] Figure 8 This is a partial cross-sectional perspective view of the threaded rod of this utility model;

[0027] Figure 9 For the present utility model Figure 2 Enlarged view of point A in the middle;

[0028] Figure 10 For the present utility model Figure 5 Enlarged view at point B in the middle;

[0029] Figure 11 For the present utility model Figure 7 Enlarged view of point C in the middle.

[0030] In the diagram: 1. Test bench; 2. Support leg; 3. Test frame; 4. Translation plate; 5. Moving assembly; 51. Fixed rod; 52. Threaded sleeve; 521. Guide plate; 522. Guide rod; 53. Threaded rod; 54. Side plate; 55. Fixed plate; 551. Support plate; 552. Support column; 553. L-shaped plate; 56. Servo motor; 57. Synchronous belt; 6. Push-out assembly; 61. Connecting rod; 62. Moving rack plate; 63. Movable gear; 64. Transmission rod; 65. Worm gear; 66. Worm wheel; 67. Reciprocating lead screw; 68. Lead screw nut; 681. Sliding plate; 682. Sliding rod; 683. Flat plate; 684. Bearing rod; 69. L-shaped moving rod; 7. Hydraulic push rod; 8. Push plate; 9. Vertical rod; 10. Pressure plate; 20. High-pressure water pump; 30. Push plate; 301. Positioning plate; 302. Connecting plate; 303. Vertical plate; 304. Limiting rod; 305. Return spring. Detailed Implementation

[0031] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] To solve the technical problems, such as Figures 1-11 As shown, the following preferred technical solution is provided: A disc-type insulator hydrostatic testing fixture includes a test platform 1 and support legs 2 fixedly installed at the bottom of the test platform 1 near the four corners. A test frame 3 is fixedly installed at the middle of the top of the test platform 1, and a translation plate 4 is provided above the top of the test frame 3. A moving component 5 is installed at the bottom of the translation plate 4 near the left and right sides, and a pushing component 6 is installed at the left and right sides of the test platform 1 near the bottom. A hydraulic push rod 7 is fixedly installed at the middle of the top of the translation plate 4. A circular opening is opened at the middle of the upper part of the translation plate 4, and the power end of the hydraulic push rod 7 passes through the inner cavity of the circular opening and is fixedly installed with a push plate 8. A vertical rod 9 is fixedly installed at the bottom of the push plate 8 near the four corners, and a pressure plate 10 is fixedly installed at the lower end of the vertical rod 9. A push plate 30 is attached to the lower part of the inner cavity of the test frame 3. The moving component 5 can drive the pressure plate 10 to move back and forth, and the pushing component 6 can drive the push plate 30 to move up and down.

[0033] In this example, the moving component 5 includes fixed rods 51 fixedly installed at the bottom of the translation plate 4 near the left and right sides, and threaded sleeves 52 fixedly installed at the lower ends of the fixed rods 51. Threaded rods 53 are threaded through the middle of the threaded sleeves 52, and side plates 54 are movably installed at the front ends of the threaded rods 53. The opposite sides of the side plates 54 are fixedly installed on the test bench 1, and a fixed plate 55 is provided at the rear side of the test bench 1 near the middle. The rear ends of the threaded rods 53 extend movably through to the outside of the fixed plate 55. A servo motor 56 is provided at the rear side of the fixed plate 55 near the left side. The output end of the servo motor 56 is fixedly connected to the rear end of the left threaded rod 53, and a synchronous wheel is fixedly sleeved at the output end of the threaded rod 53. A synchronous belt 57 is sleeved on the outside of the synchronous wheels, which can drive the pressure plate 10 to move back and forth, facilitating the placement and removal of insulators.

[0034] Specifically, a support plate 551 is fixedly installed on the front side of the fixed plate 55 near the middle, and support columns 552 are fixedly installed on the bottom of the support plate 551 near the left and right sides respectively. An L-shaped plate 553 is fixedly installed on the rear side of the fixed plate 55 near the left side, and the rear side of the servo motor 56 is fixedly installed on the inner wall of the inner side of the L-shaped plate 553, which serves to support the fixed plate 55 and the servo motor 56.

[0035] Specifically, guide plates 521 are fixedly installed on the left side of the threaded sleeve 52, and guide rods 522 are slidably installed on the guide plates 521. The two ends of the guide rods 522 are fixedly installed on the fixed plate 55 and the adjacent side plate 54, respectively, to guide and limit the movement of the threaded sleeve 52.

[0036] Specifically, a discharge pipe is fixedly installed through the front side of the test frame 3 near the bottom, and a valve is provided on the outside of the discharge pipe. A high-pressure water pump 20 is fixedly installed on the right side of the test frame 3 near the bottom. A connecting pipe is fixedly installed on the front side of the high-pressure water pump 20. The left end of the connecting pipe is fixedly extended through the inner cavity of the test frame 3. A connecting pipe is fixedly installed on the rear side of the high-pressure water pump 20 to facilitate the testing work.

[0037] Specifically, positioning plates 301 are attached to the top of the pusher plate 30 near the left and right sides, and connecting plates 302 are fixedly installed on the front and rear sides of the positioning plates 301. Vertical plates 303 are respectively provided on the outer side of the connecting plates 302. The bottom of the vertical plates 303 are fixedly installed on the pusher plate 30, and limit rods 304 are slidably installed through the vertical plates 303. The inner ends of the limit rods 304 are fixedly installed on the adjacent connecting plates 302, and reset springs 305 are respectively sleeved on the outer side of the limit rods 304. The two ends of the reset springs 305 are fixedly installed on the adjacent connecting plates 302 and vertical plates 303, which can clamp and position the insulator, resulting in better stability.

[0038] In this example, component 6 includes connecting rods 61 respectively located on the left and right sides of the test bench 1 near the bottom, and movable rack plates 62 respectively fixedly installed on the lower ends of the connecting rods 61. The upper ends of the connecting rods 61 are respectively fixedly installed on adjacent threaded sleeves 52. The bottom of the movable rack plate 62 is engaged with a movable gear 63 near the rear side. A transmission rod 64 is fixedly installed on the opposite side of the movable gear 63. A groove is opened in the middle of the top of the test bench 1, and rectangular openings are opened on the left and right sides of the groove cavity. The opposite ends of the transmission rods 64 pass through the inner cavities of the adjacent rectangular openings and extend into the inner cavity of the groove. The output shafts of the transmission rods 64 are movably mounted with straight plates through bearings. The bottom of the straight plates... The transmission rods 64 and 65 are respectively fixedly installed on the inner wall of the groove cavity. The output end of the worm gear 65 is engaged with the worm wheel 66. A movable rod is fixedly installed through the upper middle part of the worm wheel 66. The lower end of the movable rod is movably installed on the inner wall of the groove cavity. A reciprocating screw 67 is fixedly sleeved on the outer side of the movable rod near the upper end. A screw nut 68 is movably installed on the outer side of the reciprocating screw 67. L-shaped moving rods 69 are fixedly installed on the front and rear sides of the screw nut 68. The upper ends of the L-shaped moving rods 69 are fixedly installed on the push plate 30. When the pressure plate 10 moves back and forth, it can drive the push plate 30 to move up and down, further improving the efficiency of the workers in placing and picking up materials and making the operation convenient.

[0039] Specifically, sliding plates 681 are fixedly installed on the left and right sides of the lead screw nut 68, and sliding rods 682 are slidably installed through the sliding plates 681. A plate 683 is fixedly installed on the upper end of the sliding rods 682, and the upper end of the movable rod is movably installed on the plate 683. Bearing rods 684 are fixedly installed on the bottom of the plate 683 near the left and right sides, and the lower ends of the bearing rods 684 are fixedly installed on the inner wall of the groove cavity, which serves to guide and limit the movement of the lead screw nut 68 and to support and limit the reciprocating lead screw 67.

[0040] Working principle: During use, the insulator can be placed in the inner cavity of the test frame 3 for testing. The operation of the servo motor 56 drives the threaded rod 53 on the left to rotate, and then the synchronous belt 57 drives the threaded rods 53 on both sides to rotate synchronously. When the threaded rods 53 rotate synchronously, they drive the adjacent threaded sleeves 52 to move backward. When the threaded sleeves 52 move backward, they drive the translation plate 4 to move backward through the fixed rod 51. When the translation plate 4 moves backward, it drives the hydraulic push rod 7, the push plate 8, the upright rod 9, and the pressure plate 10 to move backward. When the pressure plate 10 moves backward to the appropriate position, the servo motor can then... When machine 56 stops operating, the threaded sleeve 52 moves backward, which in turn drives the moving rack plate 62 to move backward via the connecting rod 61. The moving rack plate 62 then drives the adjacent movable gear 63 to rotate, which in turn drives the adjacent transmission rod 64 to rotate. The rotation of transmission rod 64, in turn, drives the worm gear 65 to rotate, which in turn drives the worm wheel 66 to rotate. The rotation of worm wheel 66, in turn, drives the movable rod to rotate, which in turn drives the reciprocating screw 67 to rotate. The rotation of reciprocating screw 67, in turn, drives the screw nut 68 to move upward. The upward movement of screw nut 68, via L... The moving rod 69 drives the pusher plate 30 upward to the outside of the test frame 3. When the threaded sleeve 52 stops moving, the pusher plate 30 also stops moving. At this time, the operator can place the insulator on the pusher plate 30. Before placing it, the positioning plates 301 on both sides can be pulled to compress the adjacent return springs 305. After the insulator is placed, the pulled positioning plates 301 can be released, allowing them to return to their original position under the rebound force of the adjacent return springs 305, thus achieving clamping and positioning of the insulator. After clamping and positioning, the operation can be reversed to move the pressure plate 10 forward to return to its original position. At this time, the pusher plate 30 will also move. The insulator moves downwards to return to its original position. After returning to its original position, the hydraulic push rod 7 can be activated. When the hydraulic push rod 7 is activated, it will drive the pressure plate 10 downwards into the inner cavity of the test frame 3 to achieve a sealing operation. Then, the high-pressure water pump 20 will be activated. When the high-pressure water pump 20 is activated, water will enter the test frame 3 along the connecting pipe and the connecting pipe until the pressure inside the test frame 3 reaches a suitable level. Then, the high-pressure water pump 20 can be stopped. After maintaining this position for a period of time, the hydraulic push rod 7 can drive the pressure plate 10 upwards to return to its original position. Then, the valve can be opened to drain the water. Observe whether the insulator is broken to determine the compressive strength of the insulator.

[0041] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0042] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A disc type insulator water pressure test tool, comprising a test table (1) and support legs (2) fixedly installed at the bottom of the test table (1) near the four corners, characterized in that: The middle part of the top of the test platform (1) is fixedly installed with a test frame (3), and the upper part of the top of the test frame (3) is provided with a translation plate (4), and the bottom of the translation plate (4) near the left and right sides is jointly installed with a moving assembly (5), and the left and right sides of the test platform (1) near the bottom are jointly installed with a push-out assembly (6), and the middle part of the top of the translation plate (4) is fixedly installed with a hydraulic push rod (7), and the upper middle part of the translation plate (4) is provided with a circular port, and the power end of the hydraulic push rod (7) penetrates through the inner cavity of the circular port and is fixedly installed with a push plate (8), and the bottom of the push plate (8) near the four corners is fixedly installed with a vertical rod (9), and the lower end of the vertical rod (9) is jointly fixedly installed with a pressing plate (10), and the lower part of the inner cavity of the test frame (3) is attached with a pushing plate (30). The moving assembly (5) comprises fixed rods (51) fixedly installed on the bottom of the translation plate (4) near the left and right sides and threaded sleeves (52) fixedly installed on the lower ends of the fixed rods (51), threaded rods (53) threadedly penetratingly installed on the upper middle parts of the threaded sleeves (52), side plates (54) movably installed at the front ends of the threaded rods (53), the opposite sides of the side plates (54) being fixedly installed on the test platform (1), a fixed plate (55) provided on the rear side of the test platform (1) near the middle part, the rear ends of the threaded rods (53) movably extending to the outer side of the fixed plate (55), a servo motor (56) provided on the rear side of the fixed plate (55) near the left side, the output end of the servo motor (56) being fixedly connected with the rear end of the left threaded rod (53), and synchronous pulleys being fixedly sleeved with the output ends of the threaded rods (53), the outer sides of the synchronous pulleys being jointly sleeved with a synchronous belt (57).

2. The water pressure test tool for disc insulator according to claim 1, characterized in that: The front side of the fixed plate (55) near the middle part is fixedly installed with a support plate (551), the bottom of the support plate (551) near the left and right sides is fixedly installed with support columns (552), the rear side of the fixed plate (55) near the left side is fixedly installed with an L-shaped plate (553), and the rear side of the servo motor (56) is fixedly installed on the inner wall of the inner side of the L-shaped plate (553).

3. The water pressure test tool for disc insulator according to claim 1, characterized in that: The left side of the threaded sleeve (52) is fixedly installed with a guide plate (521), and the guide plate (521) is slidably penetratingly installed with guide rods (522), and the two ends of the guide rods (522) are fixedly installed on the fixed plate (55) and the adjacent side plate (54).

4. The water pressure test tool for disc insulator according to claim 1, characterized in that: The front side of the test frame (3) near the bottom is fixedly penetratingly installed with a discharge pipe, the outer side of the discharge pipe is provided with a valve, the right side of the test frame (3) near the bottom is fixedly installed with a high-pressure water pump (20), the front side of the high-pressure water pump (20) is fixedly installed with a connecting pipe, the left end of the connecting pipe is fixedly penetratingly extended into the inner cavity of the test frame (3), and the rear side of the high-pressure water pump (20) is fixedly installed with a communication pipe.

5. The water pressure test tool for disc insulator according to claim 1, characterized in that: The top of the pushing plate (30) is close to the left and right sides and is attached with a positioning plate (301), and the front and rear sides of the positioning plate (301) are fixedly installed with a connecting plate (302), the outer side of the connecting plate (302) is provided with a vertical plate (303), the bottom of the vertical plate (303) is fixedly installed on the pushing plate (30), and the vertical plate (303) is slidably penetrated and installed with a limiting rod (304), the inner end of the limiting rod (304) is fixedly installed on the adjacent connecting plate (302), the outer side of the limiting rod (304) is sleeved with a reset spring (305), and the two ends of the reset spring (305) are fixedly installed on the adjacent connecting plate (302) and the vertical plate (303).

6. The water pressure test tool for disc insulator according to claim 1, characterized in that: The pushing-out assembly (6) includes connecting rods (61) provided at the bottom of the left and right sides of the test table (1) and movable rack plates (62) fixedly installed at the lower ends of the connecting rods (61), the upper ends of the connecting rods (61) are fixedly installed on the adjacent threaded sleeves (52), the bottom of the movable rack plate (62) is close to the rear side and is engaged with a movable gear (63), the opposite side of the movable gear (63) is fixedly installed with a transmission rod (64), a recess is formed in the middle of the top of the test table (1), rectangular openings are formed in the left and right sides of the inner cavity of the recess, the opposite ends of the transmission rod (64) pass through the inner cavities of the adjacent rectangular openings and extend into the inner cavity of the recess, the output shafts of the transmission rod (64) are movably installed with straight plates through bearings, the bottoms of the straight plates are fixedly installed on the inner walls of the inner cavity of the recess, the opposite ends of the transmission rod (64) are fixedly installed with a worm (65), the output end of the worm (65) is engaged with a worm wheel (66), a movable rod is fixedly and penetrately installed on the worm wheel (66), the lower end of the movable rod is movably installed on the inner wall of the inner cavity of the recess, the outer side of the movable rod is fixedly sleeved with a reciprocating screw rod (67) close to the upper end, the outer side of the reciprocating screw rod (67) is movably installed with a screw nut (68), the front and rear sides of the screw nut (68) are fixedly installed with L-shaped moving rods (69), and the upper ends of the L-shaped moving rods (69) are fixedly installed on the pushing plate (30).

7. The water pressure test tool for disc insulator according to claim 6, characterized in that: The left and right sides of the screw nut (68) are fixedly installed with sliding plates (681), the sliding plates (681) are slidably penetrated and installed with sliding rods (682), the upper ends of the sliding rods (682) are fixedly installed with a flat plate (683), the upper end of the movable rod is movably installed on the flat plate (683), the bottoms of the flat plate (683) are fixedly installed with bearing rods (684) close to the left and right sides, and the lower ends of the bearing rods (684) are fixedly installed on the inner walls of the inner cavity of the recess.

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