Multifunctional solid-sealed polar pole test fixture

By designing a multi-functional solid-seal pole test fixture, the clamping of the fixed-seal pole columns of different sizes is achieved by using a combination of U-shaped groove plates and clamping blocks, and the test operation is completed through the driving mechanism and the force sensor. The problems of many fixtures, poor applicability and low testing efficiency in the existing technology are solved, and efficient and accurate multi-spec solid-seal pole test is achieved.

CN222762204UActive Publication Date: 2025-04-15TIANSHUI SANTONG ELECTRIC CO LTD
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Patent Information

Application Number
CN202520060305.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-10
Publication Date
2025-04-15
Estimated Expiration
2035-01-10

AI Technical Summary

Technical Problem

The existing solid seal pole test requires adjustment of insulated pull rods, and different fixtures are often used, which increases the number of fixtures and storage costs, and poor device applicability, which improves costs and reduces test efficiency. Switching tooling is prone to errors, affecting the accuracy of the test.

Method used

A multi-functional solid-seal pole test fixture is designed. Through the combination of U-shaped groove plate, central paddle block, L-shaped clamp, triangular clamp, screw and nut, the solid-seal pole of different sizes and shapes is achieved, and the pulling out of the insulated pull rod and the pressing operation of the vacuum tube is completed through the coordinated cooperation of the lateral drive mechanism, the force sensor and the locking box.

Benefits of technology

This test fixture can be used in a variety of specifications of fixed sealing pole columns, reducing the number of fixtures and storage space, reducing testing costs, avoiding operational errors, ensuring the accuracy of test results, and improving testing efficiency.

✦ Generated by Eureka AI based on patent content.

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    Figure CN222762204U_ABST
Patent Text Reader

Abstract

The utility model relates to the technical field of electrical equipment testing, in particular to a multifunctional solid-sealed polar pole testing clamp which comprises a testing table. The U-shaped baffle plate is arranged between the two connecting side plates; the anti-rotation clamping mechanism is arranged on the upper side of the test bench and is positioned between the U-shaped baffle plate and the second mounting plate; the horizontal moving jacking mechanism is arranged on the upper side of the second mounting plate; the transverse driving mechanism is arranged on the upper side of the first mounting plate; the force measuring sensor is connected with one end of the connecting block; the extension push rod is connected with one end of the force measuring sensor; the locking box is rotationally connected with one end of the extension push rod; the connecting screw is rotationally connected to one side of the locking box; the test fixture is suitable for solid-sealed polar poles of various specifications, the number and storage of the fixture are reduced, the test cost is reduced, the operation error is avoided, the test accuracy is ensured, the rapid test is realized, and the test efficiency is improved.
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Description

Technical Field

[0001] The utility model relates to the technical field of electrical equipment testing, in particular to a multifunctional solid-sealed pole testing fixture. Background Art

[0002] The solid-sealed pole is an important component in the indoor high-voltage AC vacuum circuit breaker. It is a vacuum interrupter and conductive copper parts that are solidified into a whole by pouring epoxy resin. Therefore, the performance of the solid-sealed pole directly affects the entire power transmission and distribution system. In order to ensure that each performance parameter of the indoor high-voltage AC vacuum circuit breaker can meet the technical indicators, the performance parameters of the solid-sealed pole must be tested one by one.

[0003] At present, when testing sealed poles, partial discharge tests and loop resistance tests, it is necessary to pull out the insulating pull rod on the sealed pole or apply a certain pressure to the vacuum tube inside the sealed pole through the insulating pull rod according to different test requirements. This often requires the use of different test fixtures, which increases the number of required fixtures and storage space. Moreover, each test device can only test sealed poles of specific size and shape, which not only increases the test cost, but also reduces the test efficiency. At the same time, operational errors are prone to occur in the process of switching tooling, affecting the accuracy of the test results. Utility Model Content

[0004] The purpose of the utility model is to provide a multifunctional solid-sealed pole test fixture, which is used to solve the problems that the existing solid-sealed pole test requires adjustment of the insulating pull rod, and different fixtures are often used, which increases the quantity and storage cost, and the device has poor applicability, increases cost, reduces efficiency, and is prone to errors when switching tooling, which affects test accuracy.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a multifunctional sealed pole test fixture, including a test bench, and also including a second mounting plate and a first mounting plate which are arranged on the upper side of the test bench and are arranged at intervals, two connecting side plates which are arranged on the test bench and are located between the second mounting plate and the first mounting plate, a U-shaped baffle plate which is arranged between the two connecting side plates, an anti-rotation clamping mechanism which is arranged on the upper side of the test bench and is located between the U-shaped baffle plate and the second mounting plate, a horizontally movable pressing mechanism which is arranged on the upper side of the second mounting plate, a lateral driving mechanism which is arranged on the upper side of the first mounting plate, a connecting block which is rotatably connected to the lateral driving mechanism, a force sensor which is connected to one end of the connecting block, an extension push rod which is connected to one end of the force sensor, a locking box which is rotatably connected to one end of the extension push rod, a connecting screw which is rotatably connected to one side of the locking box, and a limiting mechanism which is arranged on the first mounting plate and cooperates with the force sensor, wherein the two connecting side plates are arranged at intervals along the width direction of the test bench, and one end of the connecting screw can pass through the U-shaped baffle plate and extend to the U-shaped The anti-rotation clamping mechanism includes a U-shaped groove plate arranged on the test bench, two first strip openings arranged on the lower side of the U-shaped groove plate and spaced apart in the width direction of the U-shaped groove plate, two second strip openings arranged on the lower side of the U-shaped groove plate and spaced apart in the width direction of the U-shaped groove plate, a third strip opening arranged on the lower side of the U-shaped groove plate and located between the two first strip openings, two L-shaped clamping plates slidably matched with the lower side of the U-shaped groove plate and symmetrically arranged, and a third strip opening slidably matched with the lower side of the U-shaped groove plate and spaced apart in the width direction of the U-shaped groove plate. Two triangular clamping blocks that are matched and symmetrically arranged, a center padding block that slides with the lower side of the U-shaped groove plate and is located between the two L-shaped clamping plates, screws that are respectively arranged on the lower side of the L-shaped clamping plate, the triangular clamping block, and the center padding block, and nuts that cooperate with the screw threads and fit with the lower side of the U-shaped groove plate, and multiple screws that slide with the corresponding first strip opening, second strip opening, and third strip opening, respectively, and the two L-shaped clamping plates and the two triangular clamping blocks are spaced apart along the length direction of the U-shaped groove plate.

[0006] Furthermore, the transverse drive mechanism includes a second nut seat arranged on the upper side of the first mounting plate, a second screw threadedly matched with the second nut seat, and a handle connected to one end of the second screw, and the other end of the second screw is rotatably connected to the connecting block through a bearing.

[0007] Furthermore, the horizontally movable tightening mechanism includes a first nut seat arranged on the upper side of the second mounting plate, a first screw threadedly matched with the first nut seat, and a pad connected to one end of the first screw and located on one side of the U-shaped groove plate.

[0008] Furthermore, the limiting mechanism includes an L-shaped piece arranged on the upper side of the first mounting plate and located on one side of the connecting block, and two limiting plates arranged on one side of the L-shaped piece and spaced apart longitudinally, and the terminal on the force sensor is located between the two limiting plates.

[0009] Furthermore, the locking box includes a box body, a locking cover arranged on one side of the box body, and two connecting plates located in the box body, one end of the extended push rod passes through the box body and is connected to one side of one connecting plate, and one end of the connecting screw passes through the locking cover and is connected to one side of the other connecting plate.

[0010] Furthermore, a support plate is provided on one side of the U-shaped baffle.

[0011] Furthermore, the test bench includes a rectangular steel frame, supporting legs respectively arranged at the four corners of the lower side of the rectangular steel frame, a diagonal rod arranged on one side of the supporting legs and connected to the lower side of the rectangular steel frame, the U-shaped groove plate and the two connecting side plates are both connected to the inner wall of the rectangular steel frame, and the first mounting plate and the second mounting plate are both connected to the upper side of the rectangular steel frame.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] When testing the sealed pole, the utility model is composed of a U-shaped groove plate, a center pad block, a pair of L-shaped clamping plates, a pair of triangular clamping blocks, a screw and a nut. It can flexibly adapt to the sealed poles of different sizes and shapes to achieve stable clamping. With the coordinated cooperation of the U-shaped baffle, the lateral drive mechanism, the connecting block, the force sensor, the locking box, the extension push rod and the connecting screw, it can complete the operation of pulling out the insulating pull rod and pushing the insulating pull rod to apply a certain pressure to the vacuum tube inside the sealed pole when performing a withstand voltage test, a partial discharge test and a loop resistance test, thereby facilitating the all-round testing process of the sealed pole. The test fixture can meet the testing requirements of sealed poles of various specifications, and there is no need to frequently replace the fixture, which reduces the number of required fixtures and the storage space, thereby reducing the overall testing cost. In addition, it avoids the operating errors that may be caused by frequent replacement of tooling, ensures the accuracy of the test results, and thus ensures the accuracy of the test results. At the same time, the fixture also realizes rapid testing, greatly improving the testing efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the multifunctional solid-sealed pole test fixture of the utility model;

[0015] Figure 2 It is a structural schematic diagram of the multifunctional solid-sealed pole test fixture of the utility model;

[0016] Figure 3 It is a side view schematic diagram of the multifunctional solid-sealed pole test fixture of the utility model;

[0017] Figure 4 It is a cross-sectional schematic diagram of the locking box of the utility model.

[0018] In the figure: 1. test bench; 2. rectangular frame steel frame; 3. support leg; 4. inclined tie rod; 5. first mounting plate; 6. second mounting plate; 7. connecting plate; 8. first nut seat; 9. first lead screw; 10. cushion block; 11. U-shaped groove plate; 12. first strip opening; 13. L-shaped clamping plate; 14. second strip opening; 15. triangular clamping block; 16. connecting side plate; 17. U-shaped baffle plate; 18. support plate; 19. second nut seat; 20. second lead screw; 21. handle; 22. connecting block; 23. force sensor; 24. extension push rod; 25. locking box; 26. connecting screw; 27. L-shaped part; 28. limit plate; 29. ​​third strip opening; 30. center pad block; 31. screw; 32. nut; 33. box body; 34. locking cover. DETAILED DESCRIPTION

[0019] See also Figure 1-4A multifunctional solid-sealed pole test fixture comprises a test bench 1, a second mounting plate 6 and a first mounting plate 5 arranged on the upper side of the test bench 1 and arranged at intervals, two connecting side plates 16 arranged on the test bench 1 and located between the second mounting plate 6 and the first mounting plate 5, a U-shaped baffle 17 connected to the two connecting side plates 16, an anti-rotation clamping mechanism arranged on the upper side of the test bench 1 and located between the U-shaped baffle 17 and the second mounting plate 6, a horizontal moving pressing mechanism arranged on the upper side of the second mounting plate 6, a lateral driving mechanism arranged on the upper side of the first mounting plate 5, and a lateral driving mechanism arranged on the upper side of the first mounting plate 5. A connecting block 22 rotatably connected to the driving mechanism, a force sensor 23 connected to one end of the connecting block 22, an extension push rod 24 connected to one end of the force sensor 23, a locking box 25 rotatably connected to one end of the extension push rod 24, a connecting screw 26 rotatably connected to one side of the locking box 25, a limiting mechanism provided on the first mounting plate 5 and cooperating with the force sensor 23, two connecting side plates 16 arranged at intervals along the width direction of the test bench 1, one end of the connecting screw 26 can pass through the U-shaped baffle 17 and extend to one side of the U-shaped baffle 17; the anti-rotation clamping mechanism includes The U-shaped groove plate 11 provided on the test bench 1, two first strip openings 12 provided on the lower side of the U-shaped groove plate 11 and arranged at intervals along the width direction of the U-shaped groove plate 11, two second strip openings 14 provided on the lower side of the U-shaped groove plate 11 and arranged at intervals along the width direction of the U-shaped groove plate 11, a third strip opening 29 provided on the lower side of the U-shaped groove plate 11 and located between the two first strip openings 12, two L-shaped clamping plates 13 slidably matched with the lower side of the interior of the U-shaped groove plate 11 and arranged symmetrically, and two third strip openings 29 slidably matched with the lower side of the interior of the U-shaped groove plate 11 and arranged symmetrically. An angular clamping block 15, a center padding block 30 that slides with the lower side of the U-shaped groove plate 11 and is located between the two L-shaped clamping plates 13, screws 31 that are respectively connected to the L-shaped clamping plate 13, the triangular clamping block 15, and the lower side of the center padding block 30, and a nut 32 that is threadedly matched with the screw 31 and affixed to the lower side of the U-shaped groove plate 11, multiple screws 31 are respectively slidably matched with the corresponding first strip opening 12, second strip opening 14, and third strip opening 29, and the two L-shaped clamping plates 13 and the two triangular clamping blocks 15 are arranged at intervals along the length direction of the U-shaped groove plate 11;When testing the sealed pole, first place the sealed pole to be tested in the U-shaped groove plate 11, and ensure that its insulating pull rod is facing one side of the connecting screw 26. The sealed pole is supported by the central spacer block 30, and one end of the sealed pole is in contact with one side of the U-shaped baffle 17. Next, according to the specific shape of the sealed pole shell, adjust the two L-shaped clamps 13 or two triangular clamps 15 that match it, so that the two L-shaped clamps 13 or two triangular clamps 15 are in contact with the outer wall of the sealed pole. This adjustment process involves rotating the nut 32 downward to promote the contact with the L-shaped clamp 13 and the triangular clamp 15. The connected screw rod 31 moves in the first strip opening 12 and the corresponding second strip opening 14 until the two are completely fitted to the sealed pole. Then, the nut 32 is rotated again to combine with the lower side of the U-shaped groove plate 11 to achieve fixation. The L-shaped clamping plate 13 or the triangular clamping block 15 is used to clamp the sealed pole to prevent rotation during the test. Then, the other end of the sealed pole is fitted by the horizontal moving clamping mechanism to be fixed between the horizontal moving clamping mechanism and the U-shaped baffle 17. After that, the lateral driving mechanism drives the connecting block 22, the force sensor 23, the extension push rod 24 and The connecting screw 26 gradually approaches the sealed pole. During the movement, the limit mechanism prevents the force sensor 23, the connecting block 22, the extension push rod 24, the locking box 25, and the connecting screw 26 from rotating. When the connecting screw 26 contacts the insulating rod on the sealed pole, it continues to be driven to move, and the connecting screw 26 is manually screwed into the M12 threaded hole on the insulating rod, thereby completing the clamping and fixing of the sealed pole. When conducting a withstand voltage test or a partial discharge test, the lateral driving mechanism will drive the insulating rod connected to the connecting screw 26 to be pulled out a certain distance; and when conducting a loop resistance test, the lateral driving mechanism will The driving mechanism drives the insulating rod connected to the connecting screw 26 to move toward the sealed pole, and then pushes the insulating rod to apply a certain pressure to the vacuum tube inside the sealed pole; the test fixture can be applied to sealed poles of different sizes and shapes, and integrates the clamping and fixing functions of the three tests of withstand voltage test, partial discharge test and loop resistance test, which not only reduces the number and floor space of the measuring fixtures, reduces the test cost, but also avoids the possible operational errors caused by repeated switching of tooling, thereby ensuring the accuracy of the test results. At the same time, the fixture also realizes rapid testing and greatly improves the test efficiency. ;

[0020] The transverse driving mechanism includes a second nut seat 19 connected to the upper side of the first mounting plate 5, a second lead screw 20 threadedly matched with the second nut seat 19, and a handle 21 connected to one end of the second lead screw 20, and the other end of the second lead screw 20 is rotatably connected to the connecting block 22 through a bearing; when the transverse driving mechanism is in operation, by holding the handle 21, the second lead screw 20 is driven to rotate, thereby driving the connecting block 22, the force sensor 23, the extension push rod 24 and the connecting screw 26 to move in the horizontal direction.

[0021] The horizontally movable tightening mechanism includes a first nut seat 8 arranged on the upper side of the second mounting plate 6, a first lead screw 9 threadedly matched with the first nut seat 8, and a pad 10 connected to one end of the first lead screw 9 and located on one side of the U-shaped groove plate 11; when the horizontally movable tightening mechanism presses the sealed pole to one side of the U-shaped baffle 17, the first lead screw 9 is rotated to drive the pad 10 to gradually approach the sealed pole and press it to one side of the U-shaped baffle 17.

[0022] The center pad block 30, the L-shaped clamping plate 13, the triangular clamping block 15, the U-shaped baffle plate 17, and the pad block 10 are all made of insulating materials to ensure that the sealed pole is not damaged during the test and the safety of the test is guaranteed.

[0023] The limiting mechanism includes an L-shaped piece 27 connected to the upper side of the first mounting plate 5 and located on one side of the connecting block 22, and two limiting plates 28 connected to one side of the L-shaped piece 27 and arranged longitudinally at intervals, and the terminal on the force sensor 23 is located between the two limiting plates 28; when the force sensor 23 is driven to move in the horizontal direction, the terminal on the force sensor 23 is located between the two limiting plates 28 and moves, and the two limiting plates 28 prevent the force sensor 23, the connecting block 22 and the extension push rod 24, the locking box 25, and the connecting screw 26 from rotating.

[0024] The locking box 25 includes a box body 33, a locking cover 34 connected to one side of the box body 33 by multiple screws, and two connecting plates 7 located in the box body 33. One end of the extended push rod 24 passes through the box body 33 and is connected to one side of one connecting plate 7. One end of the connecting screw 26 passes through the locking cover 34 and is connected to one side of the other connecting plate 7. When the connecting screw 26 is connected to the M12 threaded hole of the terminal on the sealed pole, when the connecting screw 26 is rotated manually, a connecting plate 7 connected to the connecting screw 26 rotates in the box body 33, which provides convenience for the connecting screw 26 to rotate and connect to the M12 threaded hole.

[0025] A support plate 18 is connected to one side of the U-shaped baffle 17 ; the support plate 18 further supports the sealed pole.

[0026] The test bench 1 includes a rectangular steel frame 2, support legs 3 respectively arranged at the four corners of the lower side of the rectangular steel frame 2, a diagonal tie rod 4 arranged on one side of the support leg 3 and connected to the lower side of the rectangular steel frame 2, a U-shaped groove plate 11 and two connecting side plates 16 are connected to the inner wall of the rectangular steel frame 2, and a first mounting plate 5 and a second mounting plate 6 are connected to the upper side of the rectangular steel frame 2; by adopting the rectangular steel frame 2, the support legs 3 and the diagonal tie rod 4 made of solid metal materials, the test bench 1 has sufficient strength and stability and can withstand various stresses during the test process.

[0027] Working principle: When testing the sealed pole, first place the sealed pole to be tested in the U-shaped groove plate 11, and ensure that its insulating pull rod is facing one side of the connecting screw 26. The sealed pole is supported by the central spacer block 30, and one end of the sealed pole is in contact with one side of the U-shaped baffle 17. Next, according to the specific shape of the sealed pole shell, adjust the two L-shaped clamps 13 or two triangular clamps 15 that match it, so that the two L-shaped clamps 13 or two triangular clamps 15 are in contact with the outer wall of the sealed pole. This adjustment process involves rotating the nut 32 downward to cause the screw 31 connected to the L-shaped clamp 13 and the triangular clamp 15 to be in contact with the outer wall of the sealed pole. The first lead screw 9 is rotated to drive the cushion block 10 to gradually approach the sealed pole and press it to one side of the U-shaped baffle 17 to fit the other end of the sealed pole so that it is fixed between the cushion block 10 and the U-shaped baffle 17. Thereafter, the second lead screw 20 is driven to rotate by holding the handle 21 to drive the connecting block 22 and the force sensor 23. , the extension push rod 24 and the connecting screw 26 gradually approach the sealed pole. At the same time, the terminal on the force sensor 23 is located between the two limit plates 28 and moves. The two limit plates 28 prevent the connection block 22, the force sensor 23, the extension push rod 24 and the connecting screw 26 from rotating. When the connecting screw 26 contacts the insulating pull rod on the sealed pole, it continues to be driven to move, and the connecting screw 26 is manually screwed into the M12 threaded hole on the insulating pull rod, thereby completing the clamping and fixing of the sealed pole. When conducting a withstand voltage test or a partial discharge test, by holding the handle 21, the second lead screw 20 is driven to rotate in the opposite direction, which will drive the connecting screw 26 connected to the connecting screw The insulating pull rod is pulled out a certain distance; when performing the loop resistance test, by holding the handle 21, the second lead screw 20 is driven to rotate, and the insulating pull rod is pushed to apply a certain pressure to the vacuum tube inside the sealed pole to tighten it; the test fixture can be suitable for sealed poles of different sizes and shapes, and integrates the clamping and fixing functions of the three tests of withstand voltage test, partial discharge test and loop resistance test, which not only reduces the number and floor space of the measuring fixtures, reduces the test cost, but also avoids the operational errors that may be caused by repeated switching of tooling, thereby ensuring the accuracy of the test results. At the same time, the fixture also realizes rapid testing and greatly improves the test efficiency.

[0028] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A multifunctional solid-sealed pole test fixture, comprising a test bench (1), characterized in that: The test bench (1) further comprises a second mounting plate (6) and a first mounting plate (5) which are arranged on the upper side of the test bench (1) and are arranged at intervals, two connecting side plates (16) which are arranged on the test bench (1) and are located between the second mounting plate (6) and the first mounting plate (5), a U-shaped baffle (17) which is arranged between the two connecting side plates (16), an anti-rotation clamping mechanism which is arranged on the upper side of the test bench (1) and is located between the U-shaped baffle (17) and the second mounting plate (6), a horizontally movable pressing mechanism which is arranged on the upper side of the second mounting plate (6), a lateral driving mechanism which is arranged on the upper side of the first mounting plate (5), a connecting block (22) which is rotatably connected to the lateral driving mechanism, and a connecting block (22) which is rotatably connected to the connecting block ( 22) a force sensor (23) connected to one end of the test bench (1), an extension push rod (24) connected to one end of the force sensor (23), a locking box (25) rotatably connected to one end of the extension push rod (24), a connecting screw (26) rotatably connected to one side of the locking box (25), and a limiting mechanism provided on the first mounting plate (5) and cooperating with the force sensor (23); two connecting side plates (16) are arranged at intervals along the width direction of the test bench (1); one end of the connecting screw (26) can pass through the U-shaped baffle (17) and extend to one side of the U-shaped baffle (17); the anti-rotation clamping mechanism includes a U-shaped groove provided on the test bench (1) The plate (11) comprises two first strip openings (12) provided on the lower side of the U-shaped groove plate (11) and arranged at intervals along the width direction of the U-shaped groove plate (11), two second strip openings (14) provided on the lower side of the U-shaped groove plate (11) and arranged at intervals along the width direction of the U-shaped groove plate (11), a third strip opening (29) provided on the lower side of the U-shaped groove plate (11) and located between the two first strip openings (12), two L-shaped clamping plates (13) slidably matched with the inner lower side of the U-shaped groove plate (11) and arranged symmetrically, two triangular clamping blocks (15) slidably matched with the inner lower side of the U-shaped groove plate (11) and arranged symmetrically, and a third strip opening (29) provided on the lower side of the U-shaped groove plate (11) and arranged symmetrically. A center padding block (30) is slidably matched with the lower side of the groove plate (11) and is located between the two L-shaped clamping plates (13); a screw rod (31) is respectively arranged on the lower side of the L-shaped clamping plate (13), the triangular clamping block (15), and the center padding block (30); and a nut (32) is threadedly matched with the screw rod (31) and is affixed to the lower side of the U-shaped groove plate (11); a plurality of the screw rods (31) are slidably matched with the corresponding first strip opening (12), second strip opening (14), and third strip opening (29), respectively; and the two L-shaped clamping plates (13) and the two triangular clamping blocks (15) are arranged at intervals along the length direction of the U-shaped groove plate (11).

2. A multifunctional solid-sealed pole test fixture as claimed in claim 1, characterized in that: The transverse drive mechanism comprises a second nut seat (19) arranged on the upper side of the first mounting plate (5), a second lead screw (20) threadedly engaged with the second nut seat (19), and a handle (21) connected to one end of the second lead screw (20); the other end of the second lead screw (20) is rotatably connected to a connecting block (22) via a bearing.

3. A multifunctional solid-sealed pole test fixture as claimed in claim 1, characterized in that: The horizontally movable tightening mechanism comprises a first nut seat (8) arranged on the upper side of the second mounting plate (6), a first lead screw (9) threadedly engaged with the first nut seat (8), and a cushion block (10) connected to one end of the first lead screw (9) and located on one side of the U-shaped groove plate (11).

4. A multifunctional solid-sealed pole test fixture as claimed in claim 1, characterized in that: The limiting mechanism comprises an L-shaped member (27) provided on the upper side of the first mounting plate (5) and located on one side of the connecting block (22), and two limiting plates (28) provided on one side of the L-shaped member (27) and arranged at intervals in the longitudinal direction, wherein the terminal on the force sensor (23) is located between the two limiting plates (28).

5. The multifunctional solid-sealed pole test fixture according to claim 1, characterized in that: The locking box (25) comprises a box body (33), a locking cover (34) provided on one side of the box body (33), and two connecting plates (7) located inside the box body (33); one end of the extending push rod (24) passes through the box body (33) and is connected to one side of one connecting plate (7); one end of the connecting screw (26) passes through the locking cover (34) and is connected to one side of the other connecting plate (7).

6. The multifunctional solid-sealed pole test fixture according to claim 1, characterized in that: A support plate (18) is provided on one side of the U-shaped baffle plate (17).

7. The multifunctional solid-sealed pole test fixture according to claim 1, characterized in that: The test bench (1) comprises a rectangular steel frame (2), support legs (3) respectively arranged at the four corners of the lower side of the rectangular steel frame (2), and a diagonal tie rod (4) arranged on one side of the support legs (3) and connected to the lower side of the rectangular steel frame (2); the U-shaped groove plate (11) and the two connecting side plates (16) are both connected to the inner wall of the rectangular steel frame (2); and the first mounting plate (5) and the second mounting plate (6) are both connected to the upper side of the rectangular steel frame (2).