Clamping device for tension test of cement pole

Abstract

The utility model relates to cement pole technical field discloses a clamping device for tension test of cement pole, including base, the outer wall bottom of base is fixedly connected with the bottom disc, the outer wall bottom of a plurality of bottom disc is all fixedly connected with fixed column, the outer wall of a plurality of fixed column is all slidingly connected with the shell, the outer wall of a plurality of shell is all fixedly connected with the pedal, the outer wall left and right sides of a plurality of pedal are all fixedly connected with fixed shaft, the top of a plurality of round bar is all rotationally connected with the connecting plate, the top of a plurality of connecting plate is all fixedly connected with the connecting rod, the outer wall bottom of shell is equipped with the recess, in the utility model, the connecting rod is connected with the wheel, drives the wheel to move down, when this, the wheel is higher than screw rod no.

Description

Technical Field

[0001] This utility model relates to the field of cement pole technology, and in particular to a clamping device for tensile testing of cement poles. Background Technology

[0002] Cement poles, as an indispensable infrastructure in overhead power and communication lines, are widely used in urban and rural power grid construction and communication base station construction projects due to their significant advantages such as high strength, corrosion resistance, low cost, and long service life. Tensile testing is a crucial step in evaluating the quality and performance of cement poles. By simulating the tensile forces exerted on the poles in actual use scenarios, the test measures their load-bearing capacity, deformation resistance, and failure limit, effectively verifying whether the poles meet design and usage requirements. In the tensile test of cement poles, the clamping device plays a vital role. It is responsible for firmly clamping the pole, ensuring its position remains fixed during the application of tensile force, and ensuring that the test data accurately reflects the pole's performance.

[0003] Some devices use traditional bolt fastening methods, which are cumbersome to operate, have low clamping efficiency, and are difficult to ensure uniform clamping of poles of different specifications. This can easily lead to local stress concentration on the poles during the test, affecting the accuracy of the test results. Some devices using traditional bolt fastening methods have complex structures, are cumbersome to operate, and have low clamping efficiency. At the same time, when clamping the poles, traditional equipment cannot simultaneously perform the functions of movement and support, and can only exist independently. It also lacks a real-time force feedback system and cannot dynamically monitor the coupling relationship between clamping force and tension. However, currently on the market, high-precision strain gauge and piezoresistive force sensors are installed at key force-bearing parts of clamping devices, such as the contact point between the clamp and the pole and the tension transmission connection, to detect the clamping force. However, these sensors are not flexible in terms of movement during the clamping process, and traditional clamping methods are too cumbersome and time-consuming, affecting work efficiency. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a clamping device for tensile testing of cement poles, which aims to improve the problems of inflexible movement during the clamping process and the overly cumbersome traditional clamping methods in the prior art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a clamping device for tensile testing of cement poles, comprising a base, a chassis fixedly connected to the bottom of the outer wall of the base, a plurality of chassis fixedly connected to the bottom of the outer wall of each chassis, a housing slidably connected to the outer wall of each of the plurality of chassis, a pedal fixedly connected to the outer wall of each of the plurality of housings, a fixed shaft fixedly connected to the left and right sides of the outer wall of each of the plurality of pedals, a round rod fixedly connected to the left and right sides of the outer wall of each of the plurality of pedals, a connecting plate rotatably connected to the top of each of the plurality of round rods, a connecting rod fixedly connected to the top of each of the plurality of connecting plates, a groove provided at the bottom of the outer wall of the housing, a wheel rotatably connected to the middle of the outer wall of the connecting rod, a support assembly threadedly connected to the bottom of each housing, and a clamping structure fixedly connected to the top of the outer wall of the base, the clamping structure being used to clamp the pole.

[0006] As a further description of the above technical solution:

[0007] The clamping structure includes a base, the bottom of the outer wall of the base is fixedly connected to a base plate, a safety ring is fixedly connected to the top of the outer wall of the base, an upper push rod is fixedly connected to the top of the inner wall of the safety ring, a lower push rod is fixedly connected to the bottom of the inner wall of the safety ring, an upper clamping arm is fixedly connected to the top of the upper push rod, a lower clamping arm is fixedly connected to the top of the lower push rod, rubber sleeves are fixedly connected to the inner walls of both upper and lower clamping arms, and springs are fixedly connected inside the multiple rubber sleeves.

[0008] As a further description of the above technical solution:

[0009] The support assembly includes ball bearings, and the outer walls of the plurality of the aforementioned components are slidably connected to the fixed columns. The bottom of each fixed column is threaded with a screw.

[0010] As a further description of the above technical solution:

[0011] Each of the screws has a nut threadedly connected to its outer wall, and a rubber pad is fixedly connected to the bottom of each screw.

[0012] As a further description of the above technical solution:

[0013] The base has reinforcing blocks fixedly connected to the left and right sides of its outer wall, and the safety ring has supporting blocks fixedly connected to the left and right sides of its bottom.

[0014] As a further description of the above technical solution:

[0015] Each of the fixed columns is fixedly connected to a screw rod II at its top, and each of the screw rod IIs has a nut II threadedly connected to its top outer wall.

[0016] As a further description of the above technical solution:

[0017] The upper clamping arm has a fixed sleeve fixedly connected to the bottom left and right sides of its outer wall, and the lower clamping arm has a threaded screw connected to the top of its outer wall.

[0018] As a further description of the above technical solution:

[0019] Each of the lead screws has a rubber ball fixedly connected to its top, and each of the connecting rods has an anti-slip pad fixedly connected to its outer wall near the edge.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, when movement is required, simply press the pedal down to make the round rod move downward. When the round rod moves, since the round rod and the connecting rod are connected through the connecting plate, the connecting rod slides downward along the groove. Then the connecting rod is connected to the wheel, driving the wheel to move downward. At this time, the wheel is higher than the screw. Then the movement is carried out. When support is needed, simply push the pedal up to make the wheel lower than the screw. At the same time, the screw can be adjusted in height with the help of the nut.

[0022] 2. In this utility model, the pole is first placed inside the safety ring. Then, the upper and lower clamping arms are pushed towards the pole by the upper push rod at the top and the lower push rod at the bottom of the safety ring. When the pole is in contact, the rubber sleeve is squeezed due to the pushing force, which in turn squeezes the spring inside the rubber sleeve. After the test is completed, the upper and lower push rods are released, and the upper and lower clamping arms are released by the rebound force of the spring. Attached Figure Description

[0023] Figure 1 This is a front perspective view of a clamping device for tensile testing of cement poles proposed in this utility model;

[0024] Figure 2 This is a bottom view of a clamping device for tensile testing of cement poles proposed in this utility model;

[0025] Figure 3 This is a partial structural diagram of the upper clamping arm of a clamping device for tensile testing of cement poles proposed in this utility model;

[0026] Figure 4 This is a top view of a partial structure of the fixing column of a clamping device for tensile testing of cement poles proposed in this utility model;

[0027] Figure 5 This is a partial structural diagram of the wheel of a clamping device for tensile testing of cement poles proposed in this utility model.

[0028] Legend:

[0029] 1. Base; 2. Clamping structure; 201. Base; 202. Safety ring; 203. Upper push rod; 204. Upper clamping arm; 205. Lower clamping arm; 206. Rubber sleeve; 207. Spring; 208. Lower push rod; 3. Chassis; 4. Fixing column; 5. Ball bearing; 6. Outer shell; 7. Pedal; 8. Fixing shaft; 9. Round rod; 10. Connecting plate; 11. Connecting rod; 12. Groove; 13. Wheel; 14. Screw one; 15. Nut one; 16. Rubber pad; 17. Support block; 18. Reinforcing block; 19. Screw two; 20. Nut two; 21. Fixing sleeve; 22. Lead screw; 23. Rubber ball; 24. Anti-slip pad. Detailed Implementation

[0030] 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.

[0031] Please see the appendix Figure 4 - Appendix Figure 5 This utility model provides an embodiment of a clamping device for tensile testing of cement poles, comprising a base 1. A base plate 3 is securely fixed to the bottom of the outer wall of the base 1 via a robust connection. Instead of a single base plate 3, multiple base plates 3 are evenly distributed, and each base plate 3 has multiple fixing posts 4 securely connected to its bottom outer wall. The outer walls of these fixing posts 4 are not in direct contact but are connected to the outer shell 6 via a sliding connection to ensure flexible adjustment of the device during use. The outer walls of the multiple outer shells 6 are also respectively fixedly connected to pedals 7. Each pedal 7 has a fixed support on its left and right sides. A fixed shaft 8 is attached, and multiple round rods 9 are connected to the side of the fixed shaft 8. The tops of the multiple round rods 9 are connected to the connecting plate 10 by a rotating connection. A connecting rod 11 is fixedly connected to the top of each connecting plate 10 to realize the transmission of force. In addition, a groove 12 is specially opened at the bottom of the outer wall of the housing 6 to facilitate the sliding of the connecting rod 11. A wheel 13 is also designed in the middle of the outer wall of the connecting rod 11, which is connected to the connecting rod 11 by a rotating connection. The bottom of the housing 6 is threaded with a support component. A clamping structure 2 is fixedly connected to the top of the outer wall of the base 1. The clamping structure 2 is used to clamp the pole.

[0032] Specifically, the bottom of the outer wall of the base 1 is fixed with multiple evenly distributed chassis 3 by a sturdy connection. Each chassis 3 is fixed with multiple fixed posts 4 at its bottom. The fixed posts 4 are slidably connected to the outer shell 6 and can be flexibly adjusted. The outer wall of the outer shell 6 is fixed with a pedal 7. The pedal 7 is provided with fixed shafts 8 and multiple round rods 9 on both sides. The top of the round rods 9 is rotatably connected to the connecting plate 10. The top of the connecting plate 10 is fixed with a connecting rod 11 to transmit force. The bottom of the outer shell 6 has a groove 12 for the connecting rod 11 to slide. The middle of the connecting rod 11 is provided with a wheel 13. The bottom of the outer shell 6 is threaded with a support assembly. The top of the base 1 is fixed with a clamping structure 2 for clamping the pole.

[0033] Please see the appendix Figure 1 - Appendix Figure 3 The clamping structure 2 includes a base 201. The bottom of the outer wall of the base 201 is fixed to the base 1 by a robust connection to ensure the stability of the overall structure. A safety ring 202 is firmly connected to the top of the outer wall of the base 201, which serves a protective function. An upper push rod 203 is fixedly connected to the top of the inner wall of the safety ring 202, while a lower push rod 208 is fixedly connected to the bottom of its inner wall. The top part of the upper push rod 203 is reliably fixedly connected to the upper clamping arm 204, while the top part of the lower push rod 208 is fixedly connected to the lower clamping arm 205. Rubber sleeves 206 are fixedly connected to the inner walls of the two upper clamping arms 204 and the two lower clamping arms 205. These rubber sleeves 206 not only serve as a buffer but also enhance the clamping effect and shock absorption effect. A spring 207 is fixedly connected inside each rubber sleeve 206. These springs 207 can provide the necessary elastic force during the clamping process to ensure the flexibility and reliability of the clamping structure 2.

[0034] Specifically, the bottom of the outer wall of the base 201 is firmly connected to the base 1 to ensure the stability of the overall structure. A safety ring 202 is fixed to the top of the base 201 for protection. The top and bottom of the inner wall of the safety ring 202 are respectively fixed to the upper push rod 203 and the lower push rod 208. The top of the upper push rod 203 is connected to the upper clamping arm 204, and the top of the lower push rod 208 is connected to the lower clamping arm 205. Rubber sleeves 206 are fixed to the inner walls of both clamping arms to buffer, enhance clamping and shock absorption. Springs 207 are installed inside the rubber sleeves 206 to provide elasticity when clamping, ensuring that the clamping structure 2 is flexible and reliable, and meeting the clamping requirements of the tensile test of cement poles.

[0035] Please see the appendix Figure 1 - Appendix Figure 2The support assembly includes ball bearings 5, the outer walls of which are slidably connected to the fixed posts 4 to ensure smooth movement on the fixed posts 4. The bottom of each fixed post 4 is fixed with a screw rod 14 by a threaded connection. The outer walls of these screw rods 14 are connected to multiple nuts 15 by a threaded connection. The screw rods 14 can be raised or lowered by rotating the nuts 15. In addition, a rubber pad 16 is firmly fixed to the bottom of each screw rod 14 to provide necessary cushioning and support. Reinforcing blocks 18 are fixedly connected to the left and right sides of the outer wall of the base 201. The presence of these reinforcing blocks 18 effectively enhances the stability and structural strength of the base 201. At the same time, support blocks 17 are also fixedly connected to the left and right sides of the bottom of the safety ring 202. These support blocks 17 provide reliable support for the safety ring 202.

[0036] Specifically, the support assembly includes ball bearings 5, which are slidably connected to the fixed column 4 for smooth movement. The bottom of the fixed column 4 is threadedly connected to a screw rod 14, and the outer wall is connected to a nut 15, which can be rotated to raise and lower. The bottom of the screw rod 14 is fixed with a rubber pad 16 for buffer support. The base 201 has reinforcing blocks 18 on both sides to enhance stability. The safety ring 202 has support blocks 17 on both sides at the bottom to provide support.

[0037] Please see the appendix Figure 3 - Appendix Figure 5 The fixed posts 4 are all securely connected at their top positions, specifically by screw 19. Multiple screws 19 are connected by threads on their top outer walls, with nuts 20 as the connecting component. The upper clamping arms 204 are fixedly connected on the bottom left and right sides of their outer walls, with fixing sleeves 21 as the connecting component. The lower clamping arms 205 are all connected by threads to lead rods 22 at their top positions on their outer walls, with multiple lead rods 22 fixedly connected at their top positions, with rubber balls 23 as the connecting component. The elasticity of the rubber balls 23 is used to lock them into the fixing sleeves 21. The connecting rods 11 are fixedly connected near the edge of their outer walls, with anti-slip pads 24 as the connecting component.

[0038] Specifically, the top of the fixed column 4 is securely connected to the screw rod 19, and the top of the screw rod is connected to the nut 20. The bottom left and right sides of the upper clamping arm 204 are fixedly connected to the fixing sleeve 21. The top of the outer wall of the lower clamping arm 205 is connected to the screw rod 22, and the top of the screw rod is fixed to the rubber ball 23, which is held in place by the elasticity of the ball. The outer edge of the connecting rod 11 is fixedly connected to the anti-slip pad 24.

[0039] Working principle: First, press down the pedal 7 at the bottom of the base 1. Since the outer walls of the pedal 7 are connected to the round rods 9 on both sides, and then connected to the connecting rods 11 through the connecting plate 10 on the round rods 9, a groove 12 is provided at the bottom of the outer wall of the outer shell 6. When the pedal 7 is pressed down, the round rods 9 move down with the pedal 7, and then the connecting rods 11 move down along the groove 12. The connecting rods 11 are connected to the groove 12. When the connecting rods 11 move down, the groove 12 moves down with them. At this time, the groove 12 is higher than the rubber pad 16, and then the base 1 can be moved. When the pole is fixed, simply lift the pedal 7 up, and the groove 12 moves up. At this time, the rubber pad 16 is higher than the groove 12, which can provide support. Then the height of the rubber pad 16 can be adjusted by the nut 15 on the screw 14. The outer shell 6 can rotate along the outer wall of the fixed column 4 due to the presence of the ball bearings 5. The outer shell 6 is connected to the pedal 7. Rotating the outer shell 6 can move the base 1 in different directions, realizing multi-directional movement and flexible adjustment.

[0040] First, the pole is placed inside the safety ring 202. At this time, the upper clamping arm 204 and the lower clamping arm 205 are close to the inner wall of the safety ring 202. After the pole is placed, the upper push rod 203 and the lower push rod 208 are used to push the upper clamping arm 204 and the lower clamping arm 205 close to the pole. When the upper clamping arm 204 and the lower clamping arm 205 are close to the pole, the rubber sleeve 206 on their inner wall first touches the pole, and then the spring 207 retracts to the inner wall. After the upper clamping arm 204 and the lower clamping arm 205 are in contact and fixed, since the rubber sleeve 206 is made of rubber, it can reduce the friction between the pole and the upper clamping arm 204 and the lower clamping arm 205 during the tensile test. After the test is completed, the upper push rod 203 and the lower push rod 208 are released, and the elastic force of the spring 207 makes the upper clamping arm 204 and the lower clamping arm 205 quickly return to their original position, achieving rapid clamping while reducing friction.

[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A clamping device for tensile testing of cement poles, comprising a base (1), characterized in that: The base (1) is fixedly connected to a chassis (3) at the bottom of its outer wall. The chassis (3) is fixedly connected to a fixed column (4) at the bottom of its outer wall. The fixed column (4) is slidably connected to a shell (6) at the bottom of its outer wall. The shell (6) is fixedly connected to a pedal (7) at the bottom of its outer wall. The pedal (7) is fixedly connected to a fixed shaft (8) on the left and right sides of its outer wall. The pedal (7) is fixedly connected to a round rod (9) on the left and right sides of its outer wall. The top of the round rod (9) is rotatably connected to a connecting plate (10). The top of the connecting plate (10) is fixedly connected to a connecting rod (11). The bottom of the shell (6) is provided with a groove (12). The connecting rod (11) is rotatably connected to a wheel (13) in the middle of its outer wall. The bottom of the shell (6) is threadedly connected to a support assembly. The top of the base (1) is fixedly connected to a clamping structure (2). The clamping structure (2) is used to clamp the pole.

2. The clamping device for tensile testing of cement poles according to claim 1, characterized in that: The clamping structure (2) includes a base (201), the bottom of the outer wall of the base (201) is fixedly connected to the base (1), a safety ring (202) is fixedly connected to the top of the outer wall of the base (201), an upper push rod (203) is fixedly connected to the top of the inner wall of the safety ring (202), a lower push rod (208) is fixedly connected to the bottom of the inner wall of the safety ring (202), an upper clamping arm (204) is fixedly connected to the top of the upper push rod (203), a lower clamping arm (205) is fixedly connected to the top of the lower push rod (208), a rubber sleeve (206) is fixedly connected to the inner wall of both upper clamping arms (204) and lower clamping arms (205), and a spring (207) is fixedly connected inside the multiple rubber sleeves (206).

3. The clamping device for tensile testing of cement poles according to claim 1, characterized in that: The support assembly includes ball bearings (5), and the outer walls of multiple of the (5) are slidably connected to the fixed posts (4). The bottom of each fixed post (4) is threaded with a screw rod (14).

4. The clamping device for tensile testing of cement poles according to claim 3, characterized in that: Nuts (15) are threaded onto the outer walls of each of the screws (14), and rubber pads (16) are fixedly connected to the bottom of each screw (14).

5. A clamping device for tensile testing of cement poles according to claim 2, characterized in that: The base (201) has a reinforcing block (18) fixedly connected to the left and right sides of its outer wall, and the safety ring (202) has a support block (17) fixedly connected to the left and right sides of its bottom.

6. The clamping device for tensile testing of cement poles according to claim 1, characterized in that: Each of the fixed columns (4) is fixedly connected to a screw rod (19), and the top outer wall of each screw rod (19) is threaded with a nut (20).

7. A clamping device for tensile testing of cement poles according to claim 2, characterized in that: The upper clamping arm (204) has a fixed sleeve (21) fixedly connected to the bottom left and right sides of the outer wall, and the lower clamping arm (205) has a screw rod (22) threadedly connected to the top of the outer wall.

8. A clamping device for tensile testing of cement poles according to claim 7, characterized in that: Rubber balls (23) are fixedly connected to the top of each of the multiple lead screws (22), and anti-slip pads (24) are fixedly connected to the outer wall of the connecting rod (11) near the edge.

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