Finished product withstand voltage detection device for mpp power tube production

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By using a hydraulically driven clamping plate design with a worm gear mechanism, combined with an automated controller, the problems of low efficiency and inconvenient fixing of the MPP power pipe finished product pressure resistance testing device are solved, achieving efficient and stable pressure resistance testing.

CN223784038UActive Publication Date: 2026-01-09SHANDONG DINGRUI COMPOSITE MATERIALS CO LTD

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Patent Information

Application Number: CN202520304060.6
Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner
Filing Date: 2025-02-25
Publication Date: 2026-01-09
Estimated Expiration: 2035-02-25

AI Technical Summary

Technical Problem

Existing MPP power pipe finished product withstand voltage testing devices are inefficient and inconvenient to fix, making it difficult to achieve fast and stable testing.

Method used

The sample is fixed by a hydraulically driven clamping plate, and automated detection is achieved through a worm gear mechanism and a dual-output shaft motor, combined with a controller for automated control.

Benefits of technology

It improves detection efficiency, ensures stable sample clamping and accurate pressure resistance testing, avoids accidental damage, and achieves automated operation.

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Abstract

The utility model discloses a finished product voltage withstanding detection device for mpp power tube production, which comprises a base, a first hydraulic telescopic rod is fixedly connected to the top of an inner cavity of the base, an output shaft of the first hydraulic telescopic rod is fixedly connected with a pressing plate, a placing groove is formed in the top of the inner cavity, a detection sample is placed in an inner cavity of the placing groove, and the pressing plate is fixedly connected with the inner cavity of the base. The top of the right side of the base is fixedly connected with a controller. According to the utility model, a sample can be detected through the arranged clamping plate for clamping and fixing, hydraulic pressure is used as driving force for detection, the pressure endurance capability of the sample can be intuitively reflected, and meanwhile, the clamping plate can generate displacement along with the deformation of the sample during detection, so that a good clamping effect can be ensured; the device is simple in structure and convenient to operate, the accidental injury phenomenon is avoided, meanwhile, the controller is adopted for automatic detection work, the working efficiency can be improved, automatic clamping and fixing work can be achieved, and great convenience is brought to the detection work.

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Description

Technical Field

[0001] This utility model relates to the field of MPP power pipe technology, specifically to a finished product withstand voltage testing device for MPP power pipe production. Background Technology

[0002] MPP power pipe, also known as MPP pipe, MPP power cable protection pipe, or MPP cable protection pipe, is a pipe made of modified polypropylene as the main raw material. It can be widely used in municipal, telecommunications, power, gas, tap water, and heating pipeline projects. It is suitable for urban and rural trenchless horizontal directional drilling power pipe laying projects and open-cut power pipe laying projects.

[0003] During the production of MPP power pipes, it is necessary to test the pressure resistance of the finished product to obtain the pipe's service strength parameters. Currently, most pressure testing devices test by stacking a specified weight on top of the pipe. This method is not only inefficient but also cumbersome when fixing the pipe. Therefore, it is necessary to design a pressure testing device that facilitates rapid testing. Utility Model Content

[0004] The purpose of this invention is to provide a pressure resistance testing device for finished products used in the production of MPP power pipes, which is easy to use and solves the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a pressure resistance testing device for finished products used in the production of MPP power pipes, comprising a base, a first hydraulic telescopic rod fixedly connected to the top of the inner cavity of the base, a pressure plate fixedly connected to the output shaft of the first hydraulic telescopic rod, a placement groove provided at the top of the inner cavity, a test sample placed in the inner cavity of the placement groove, and a controller fixedly connected to the top right side of the base.

[0006] Clamping plates are provided at the top of the inner cavity of the base and on both sides of the sample to be tested. Slide rods are fixedly connected to the front and rear ends of the two clamping plates on opposite sides. The other end of each slide rod extends through to the outside of the base. A spring is fitted onto the surface of each slide rod, and both ends of the spring are fixedly connected to the surfaces of the base and the clamping plates, respectively. A fixing sleeve is fixedly connected to the surface of the clamping plate between the two slide rods. Rectangular holes are provided at both the upper and lower ends of the fixing sleeve. A threaded tube is slidably connected to the inner cavity of each rectangular hole, and a threaded rod is threadedly connected to the inner cavity of the threaded tube. The surface of the threaded rod is fixedly connected to the surface of the clamping plate via a bearing seat. A worm gear is fixedly connected to the other end of the threaded rod. A worm is meshed on the surface of the worm gear. A driven bevel gear is fixedly connected to the other end of the worm. The surface of the worm is fixedly connected to the surface of the clamping plate via a bearing seat. A driving bevel gear is meshed on the surface of the driven bevel gear. A dual-output shaft motor is fixedly connected between the upper and lower driving bevel gears. A second hydraulic telescopic rod is provided in the inner cavity of the fixed sleeve. The other end of the second hydraulic telescopic rod is fixedly connected to the inner wall of the base.

[0007] Preferably, the surface of the base is provided with a sliding hole for use by a sliding rod, and the other end of the sliding rod is fixedly connected to an anti-detachment plate.

[0008] Preferably, the inner cavity of the base is provided with a mounting hole, and the second hydraulic telescopic rod is installed in the inner cavity of the mounting hole.

[0009] Preferably, each of the four corners of the base is fixedly connected to a pad, and the bottom of the pad is provided with anti-slip texture.

[0010] Preferably, the inner wall of the placement groove and the bottom of the pressure plate are provided with anti-slip grooves, and the anti-slip grooves are arranged at equal intervals.

[0011] Preferably, the second hydraulic telescopic rod has pin holes on both the upper and lower sides of one end of the inner cavity of the fixed sleeve, and the end of the threaded tube away from the threaded rod extends into the inner cavity of the pin hole.

[0012] Preferably, the surface of the clamping plate is provided with a mounting groove, and the dual output shaft motor is mounted in the inner cavity of the mounting groove.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0014] 1. This utility model can clamp and fix the sample by setting a clamping plate, and the use of hydraulic pressure as the driving force for detection can directly reflect the pressure resistance of the sample. At the same time, during the detection, the clamping plate can move with the deformation of the sample, which can ensure a good clamping effect and prevent accidental damage. Furthermore, by using a controller for automated detection, not only can work efficiency be improved, but also automated clamping and fixing can be achieved, which brings great convenience to the detection work.

[0015] 2. This utility model facilitates the movement of the sliding rod by providing a sliding hole, prevents the sliding rod from separating from the base by providing an anti-detachment plate, facilitates the fixing of the second hydraulic telescopic rod by providing a mounting hole, ensures the stability of the device by providing a pad, ensures the stability when clamping the test sample by providing an anti-slip groove, facilitates the connection of the second hydraulic telescopic rod to the fixing sleeve by providing a pin hole, and facilitates the installation of a dual-output shaft motor by providing an installation groove. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a cross-sectional view of the structure of this utility model;

[0018] Figure 3 This is a three-dimensional schematic diagram of the base of this utility model;

[0019] Figure 4 This is a schematic diagram of the connection structure between the clamping plate and the dual-output shaft motor of this utility model;

[0020] Figure 5 This is a schematic diagram of the connection structure between the clamping plate and the fixing sleeve of this utility model;

[0021] Figure 6 This utility model Figure 2 Enlarged diagram of point A in the middle.

[0022] In the diagram: 1. Base; 2. First hydraulic telescopic rod; 3. Pressure plate; 4. Placement slot; 5. Controller; 6. Clamping plate; 7. Slide rod; 8. Spring; 9. Fixing sleeve; 10. Rectangular hole; 11. Threaded pipe; 12. Threaded rod; 13. Worm gear; 14. Worm; 15. Driven bevel gear; 16. Driven bevel gear; 17. Dual output shaft motor; 18. Second hydraulic telescopic rod; 19. Anti-detachment plate; 20. Pin hole. Detailed Implementation

[0023] 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.

[0024] All components of this utility model are general standard parts or parts known to those skilled in the art. Their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods.

[0025] Example 1:

[0026] Please see Figures 1-6 To achieve the purpose of withstand voltage testing, this embodiment provides the following technical solution, specifically disclosing: a withstand voltage testing device for finished MPP power pipe production, including a base 1, a first hydraulic telescopic rod 2 fixedly connected to the top of the inner cavity of the base 1, a pressure plate 3 fixedly connected to the output shaft of the first hydraulic telescopic rod 2, a placement groove 4 opened at the top of the inner cavity, a test sample placed in the inner cavity of the placement groove 4, a controller 5 fixedly connected to the top right side of the base 1, an installation circular hole opened in the inner cavity of the base 1, a second hydraulic telescopic rod 18 installed in the inner cavity of the installation circular hole, pads fixedly connected to the four corners of the bottom of the base 1, anti-slip textures provided on the bottom of the pads, anti-slip grooves opened on the inner wall of the placement groove 4 and the bottom of the pressure plate 3, and the anti-slip grooves are arranged at equal distances. By setting the installation circular hole, the second hydraulic telescopic rod 18 can be easily fixed. By setting the pads, the stability of the device can be ensured. By setting the anti-slip grooves, the stability when clamping the test sample can be ensured.

[0027] Example 2:

[0028] Please see Figures 1-6To facilitate clamping and fixing, this embodiment provides the following technical solution: Clamping plates 6 are provided at the top of the inner cavity of the base 1 and on both sides of the sample being tested. Slide rods 7 are fixedly connected to the front and rear ends of the two clamping plates 6 on opposite sides. The other end of the slide rods 7 extends through the outside of the base 1. A spring 8 is sleeved on the surface of the slide rod 7, and both ends of the spring 8 are fixedly connected to the surfaces of the base 1 and the clamping plates 6, respectively. A fixing sleeve 9 is fixedly connected to the surface of the clamping plates 6 between the front and rear slide rods 7. Rectangular holes 10 are provided at both the upper and lower ends of the fixing sleeve 9. A threaded tube 11 is slidably connected to the inner cavity of the rectangular hole 10. A threaded rod 12 is threadedly connected to the inner cavity of the threaded tube 11. The surface of the threaded rod 12 is fixedly connected to the surface of the clamping plate 6 through a bearing seat. A worm gear 13 is fixedly connected to the other end of the threaded rod 12. A worm 14 meshes with the surface of the worm gear 13. A driven bevel gear 15 is fixedly connected to the other end of the worm 14. The surface of the worm 14 is connected to the surface of the clamping plate 6 through a bearing seat. A driven bevel gear 16 meshes with the surface of the driven bevel gear 15. A dual-output shaft motor 17 is fixedly connected between the upper and lower driven bevel gears 16. A second hydraulic telescopic rod 18 is provided in the inner cavity of the fixed sleeve 9. The other end of the second hydraulic telescopic rod 18 is fixedly connected to the inner wall of the base 1. A sliding hole for use by the slide rod 7 is provided on the surface of the base 1. An anti-detachment plate 19 is fixedly connected to the other end of the slide rod 7. The sliding hole facilitates the movement of the slide rod 7. The anti-detachment plate 19 prevents the slide rod 7 from separating from the base 1. Pin holes 20 are provided on both the upper and lower sides of the second hydraulic telescopic rod 18 at one end of the inner cavity of the fixed sleeve 9. The end of the threaded tube 11 away from the threaded rod 12 extends into the inner cavity of the pin hole 20. An installation groove is provided on the surface of the clamping plate 6. The dual-output shaft motor 17 is installed in the inner cavity of the installation groove. The pin hole 20 facilitates the connection of the second hydraulic telescopic rod 18 to the fixed sleeve 9. The installation groove facilitates the installation of the dual-output shaft motor 17.

[0029] The control method of this utility model is automatic control through controller 5. The control circuit of controller 5 can be implemented by simple programming by those skilled in the art, which is common knowledge in the field. Furthermore, this utility model is mainly used to protect mechanical devices, so the control method and circuit connection will not be explained in detail.

[0030] In use, the test sample is placed in the inner cavity of the placement slot 4. Then, the second hydraulic telescopic rod 18 is extended by activating it. The second hydraulic telescopic rod 18 drives the clamping plate 6 to move and fix the two sides of the test sample. Then, the dual output shaft motor 17 is activated. The dual output shaft motor 17 drives the driving bevel gear 16 to rotate. The driving bevel gear 16 drives the driven bevel gear 15 to rotate. The driven bevel gear 15 drives the worm gear 14 to rotate. The worm gear 14 drives the worm wheel 13 to rotate. The worm wheel 13 drives the threaded rod 12 to rotate. The threaded rod 12 drives the threaded tube 11 to move so that it disengages from the pin hole 20. At this time, the second hydraulic telescopic rod 18 can be retracted. Then, the second hydraulic telescopic rod 18 can be separated from the clamping plate 6. At this time, due to the elasticity of the spring 8, the test sample will still be clamped and fixed. Then, by activating the first hydraulic telescopic rod 2, the first hydraulic telescopic rod 2 drives the pressure plate 3 to move downward and press down on the test sample. When the test sample deforms, it will drive the clamping plate 6 to move, and the clamping plate 6 will drive the sliding rod 7 to move. At the same time, the spring 8 will still firmly adhere the clamping plate 6 to the surface of the test sample, thereby ensuring a good clamping and fixing effect. When the test sample collapses, the pressure resistance index of the test sample can be obtained by reading the hydraulic value of the first hydraulic telescopic rod 2.

[0031] 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 pressure withstand testing device for finished products used in the production of MPP power pipes, comprising a base (1), characterized in that: The top of the inner cavity of the base (1) is fixedly connected to a first hydraulic telescopic rod (2), the output shaft of the first hydraulic telescopic rod (2) is fixedly connected to a pressure plate (3), a placement groove (4) is opened at the top of the inner cavity, a test sample is placed in the inner cavity of the placement groove (4), and a controller (5) is fixedly connected to the top right side of the base (1). Clamping plates (6) are provided at the top of the inner cavity of the base (1) and on both sides of the sample to be tested. Slide rods (7) are fixedly connected to the front and rear ends of the two clamping plates (6) on opposite sides. The other end of the slide rods (7) extends through the outside of the base (1). A spring (8) is sleeved on the surface of the slide rods (7). The two ends of the spring (8) are fixedly connected to the surfaces of the base (1) and the clamping plates (6), respectively. A fixing sleeve (9) is fixedly connected to the surface of the clamping plates (6) between the front and rear slide rods (7). Rectangular holes (10) are provided at both the upper and lower ends of the fixing sleeve (9). A threaded tube (11) is slidably connected to the inner cavity of the rectangular hole (10). A threaded rod (12) is threadedly connected to the inner cavity of the threaded tube (11). The surface of the threaded rod (12) is fixedly connected to the surface of the clamping plate (6) through a bearing seat. The other end of the threaded rod (12) is fixedly connected to a worm gear (13). The surface of the worm gear (13) is meshed with a worm (14). The other end of the worm (14) is fixedly connected to a driven bevel gear (15). The surface of the worm (14) is fixedly connected to the surface of the clamping plate (6) through a bearing seat. The surface of the driven bevel gear (15) is meshed with a driving bevel gear (16). A dual-output shaft motor (17) is fixedly connected between the upper and lower driving bevel gears (16). The inner cavity of the fixed sleeve (9) is provided with a second hydraulic telescopic rod (18). The other end of the second hydraulic telescopic rod (18) is fixedly connected to the inner wall of the base (1).

2. The finished product withstand voltage testing device for MPP power pipe production according to claim 1, characterized in that: The surface of the base (1) is provided with a sliding hole for use by the slide rod (7), and the other end of the slide rod (7) is fixedly connected to an anti-detachment plate (19).

3. The finished product withstand voltage testing device for MPP power pipe production according to claim 1, characterized in that: The base (1) has an installation hole in its inner cavity, and the second hydraulic telescopic rod (18) is installed in the inner cavity of the installation hole.

4. The finished product withstand voltage testing device for MPP power pipe production according to claim 1, characterized in that: The base (1) has four corners at the bottom fixedly connected with pads, and the bottom of the pads is provided with anti-slip texture.

5. The finished product withstand voltage testing device for MPP power pipe production according to claim 1, characterized in that: The inner wall of the placement groove (4) and the bottom of the pressure plate (3) are provided with anti-slip grooves, and the anti-slip grooves are arranged at equal distances.

6. The finished product withstand voltage testing device for MPP power pipe production according to claim 1, characterized in that: The second hydraulic telescopic rod (18) has pin holes (20) on both the upper and lower sides of one end of the inner cavity of the fixed sleeve (9), and the end of the threaded tube (11) away from the threaded rod (12) extends into the inner cavity of the pin hole (20).

7. The finished product withstand voltage testing device for MPP power pipe production according to claim 1, characterized in that: The surface of the clamping plate (6) is provided with an installation groove, and the dual output shaft motor (17) is installed in the inner cavity of the installation groove.