Teflon hose bending fatigue test bench

Abstract

The utility model discloses a testboard for bending fatigue of a polytetrafluoroethylene hose, which relates to the field of polytetrafluoroethylene hoses and comprises a base, a driving component is arranged on one side of the base, the output end of the driving component penetrates into the base to be connected with a first threaded rod, and a fixed clamping table is arranged on one side of the top of the base. And a sliding clamping table matched with the first threaded rod is arranged on the other side of the sliding clamping table in a sliding mode, a fixed clamping plate is arranged at the top in the sliding clamping table, and a sliding clamping plate is arranged at the bottom of the sliding clamping table. According to the utility model, the stepping motor is started to drive the sliding clamping table to move towards one side, the other end of the polytetrafluoroethylene hose is clamped under the matching of the second threaded rod and the threaded cylinder and the matching of the second threaded rod and the fixed clamping plate at the top; the fixed gear rotates reversely, the sliding clamping plate moves downwards to release clamping of the polytetrafluoroethylene hose, and therefore the overall testing efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of polytetrafluoroethylene (PTFE) hoses, specifically a PTFE hose bending fatigue testing bench. Background Technology

[0002] With the development of modern technology, all kinds of materials have been widely used in people's daily lives. Before use, all materials need to undergo complex alternating fatigue load performance tests such as reciprocating bending, stretching or torsion to understand the specific performance of the device. Among them, polytetrafluoroethylene (PTFE) hoses are widely used due to their characteristics of high temperature resistance, corrosion resistance, high pressure resistance, light weight, strong flexibility, strong resistance to damage, and durability. As PTFE hoses can be bent arbitrarily, the bending fatigue load corresponding to this has attracted much attention from users.

[0003] Chinese patent CN221038519 U discloses a PTFE hose bending fatigue testing bench. The hose is fixed with bolts to prevent it from falling off during the test. A fixing kit on one side slides inside the second groove, which can be adjusted according to the hose size. The hose is bent by the left mounting seat sliding inside the first groove with the help of a steel wire rope. The bending stress of the hose can be calculated by reading the test data from the test components.

[0004] In summary, the above-mentioned structure requires a large number of bolt assemblies during the inspection of PTFE hoses. The subsequent disassembly process is too cumbersome for staff, which reduces the overall inspection efficiency and increases the inspection burden on staff. Utility Model Content

[0005] Therefore, the purpose of this utility model is to provide a PTFE hose bending fatigue testing bench to solve the technical problem that the testing process is too cumbersome, reduces the overall testing efficiency, and increases the testing burden on staff.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a polytetrafluoroethylene (PTFE) hose bending fatigue testing platform, comprising a base, a driving assembly being provided on one side of the base, the output end of the driving assembly penetrating into the base and connected to a first threaded rod, a fixed clamping platform being provided on one side of the top of the base, and a sliding clamping platform being slidably provided on the other side of the base to cooperate with the first threaded rod, a fixed clamping plate being provided at the top of the sliding clamping platform, and a sliding clamping plate being provided at the bottom of the sliding clamping platform.

[0007] By adopting the above technical solution, the sliding clamping table is moved to one side by starting the stepper motor. With the cooperation of the second threaded rod and the threaded cylinder, and with the cooperation of the fixed clamping plate at the top, the other end of the polytetrafluoroethylene (PTFE) hose is clamped. After the test is completed and the system is reset, the fixed gear rotates in the opposite direction and the sliding clamping plate moves downward to release the clamping of the PTFE hose, thereby speeding up the overall testing efficiency.

[0008] The present invention is further configured such that a threaded sleeve is slidably provided on the outer wall of the first threaded rod, and the top of the threaded sleeve is connected to the sliding clamping table.

[0009] By adopting the above technical solution, during the process of the first threaded rod being rotated by the stepper motor, the threaded sleeve on the outer wall will slide on the outer wall of the first threaded rod, thereby realizing the movement of the sliding clamping table to one side.

[0010] The present invention is further provided that the top of the base is provided with a sliding groove at the first threaded rod.

[0011] By adopting the above technical solution, the sliding clamping platform is made stable on the top of the base through the action of the sliding groove.

[0012] The present invention is further configured such that a toothed block is partially provided in the sliding groove, a fixed gear is rotatably provided in the threaded sleeve, and a second threaded rod is connected to the top of the fixed gear, and a threaded cylinder that cooperates with the second threaded rod is provided at the bottom of the sliding clamp.

[0013] By adopting the above technical solution, during the sliding process of the threaded sleeve through the first threaded rod, the fixed gear inside the threaded sleeve will rotate under the action of the tooth block, thereby driving the second threaded rod at the top of the fixed gear to rotate as well. In cooperation with the threaded cylinder, the sliding clamp at the top will slide, thus completing the fixing of the polytetrafluoroethylene hose.

[0014] The present invention is further provided with a protective sleeve on the inner side of both the fixed clamp and the sliding clamp, and the protective sleeve itself is detachable.

[0015] By adopting the above technical solution, the protective sleeve can prevent the fixed clamp and sliding clamp from directly contacting the PTFE hose, thus effectively preventing damage to the PTFE hose during testing.

[0016] The present invention is further configured such that the driving component is a stepper motor, which is used to drive the first threaded rod at the output end to rotate.

[0017] By adopting the above technical solution, the first threaded rod can be driven to rotate in different directions under the action of the stepper motor, which makes it convenient for staff to adjust and test the curvature of the polytetrafluoroethylene hose.

[0018] The present invention is further configured such that a limiting mechanism is provided at the bottom of the threaded sleeve within the groove.

[0019] By adopting the above technical solution, the stability of the threaded sleeve sliding in the groove is ensured under the action of the limiting mechanism, effectively preventing the threaded sleeve from causing the sliding clamping table to rotate during the rotation of the first threaded rod.

[0020] The present invention is further provided that the fixed clamping platform is detachably provided with a clamping component.

[0021] By adopting the above technical solution, the clamping assembly can be used to directly fix one end of the polytetrafluoroethylene hose.

[0022] The present invention is further configured such that the threaded cylinder is located on the outer wall of the second threaded rod, and the other end of the threaded cylinder extends through the sliding clamping table and is connected to a sliding clamping plate.

[0023] By adopting the above technical solution, during the rotation of the second threaded rod, the threaded cylinder itself will slide upward, thereby ensuring that the threaded cylinder drives the sliding clamp to slide in the vertical direction, further improving the overall clamping stability.

[0024] The present invention is further provided that a support frame is provided at the bottom of the base.

[0025] By adopting the above technical solution, the support frame allows staff to easily adjust the overall height of the base according to the actual situation. At the same time, the support frame can be folded and stored, making it convenient for staff to carry and transport.

[0026] In summary, the present invention has the following main advantages:

[0027] This invention features a stepper motor mounted on one side of the base. One end of a PTFE (polytetrafluoroethylene) hose is fixed to a fixed clamping platform, while the other end is inserted into a sliding clamping platform. The stepper motor then moves the sliding clamping platform to one side, causing the toothed block in the groove to rotate the fixed gear. Through the cooperation of the second threaded rod and the threaded cylinder, the sliding clamping plate moves upward, clamping the other end of the PTFE hose in conjunction with the fixed clamping plate at the top. After the test is completed and the system is reset, the fixed gear rotates in the opposite direction, and the sliding clamping plate moves downward to release the clamping of the PTFE hose. This significantly improves the overall testing efficiency and reduces the overall disassembly and assembly burden on the staff. Attached Figure Description

[0028] Figure 1 This is a perspective view of the present utility model;

[0029] Figure 2 This is a top view of the present invention;

[0030] Figure 3 This utility model Figure 1 Enlarged view of A in the middle;

[0031] Figure 4 This is a cross-sectional view of the present invention;

[0032] Figure 5 This utility model Figure 4 A magnified view of B in the middle.

[0033] In the diagram: 1. Base; 2. Stepper motor; 3. Fixed clamping table; 4. Sliding clamping table; 5. Slide groove; 6. First threaded rod; 7. Tooth block; 8. Threaded sleeve; 9. Fixed gear; 10. Sliding clamping plate; 11. Threaded cylinder; 12. Second threaded rod; 13. Fixed clamping plate. Detailed Implementation

[0034] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0035] The embodiments of this utility model will be described below based on its overall structure.

[0036] Example 1

[0037] A PTFE hose bending fatigue testing stand, such as Figures 1-5As shown, the system includes a base 1, a sliding clamping platform 4, a fixed clamping platform 3, a transmission mechanism, a clamping mechanism, and a sliding mechanism. A fixed clamping platform 3 is located on one side of the top of the base 1, and a sliding clamping platform 4, which slidably engages with a first threaded rod 6, is located on the other side. The operator places one end of the PTFE hose to be tested into the fixed clamping platform 3 for fixation, and the other end is directly inserted into the sliding clamping platform 4. A stepper motor 2 is located on one side of the base 1, and the output end of the stepper motor 2 extends through the base 1 and connects to the first threaded rod 6. When the operator starts the stepper motor 2, a threaded sleeve 8 is slidably mounted on the outer wall of the first threaded rod 6, and the top of the threaded sleeve 8 is connected to the sliding clamping platform 4. As the stepper motor 2 drives the first threaded rod 6 to rotate, the threaded sleeve 8 on the outer wall of the first threaded rod 6 will... The wall slides, thereby moving the sliding clamping platform 4 to one side. At the same time, a groove 5 is provided on the top of the base 1 at the first threaded rod 6. A toothed block 7 is partially provided in the groove 5, and a fixed gear 9 is rotatably provided in the threaded sleeve 8. A second threaded rod 12 is connected to the top of the fixed gear 9. A threaded cylinder 11 that cooperates with the second threaded rod 12 is provided at the bottom of the sliding clamping plate 10. During the sliding of the threaded sleeve 8 through the first threaded rod 6, the fixed gear 9 inside the threaded sleeve 8 will rotate under the action of the toothed block 7, thereby driving the second threaded rod 12 on the top of the fixed gear 9 to rotate as well. With the cooperation of the threaded cylinder 11, the top sliding clamping plate 10 will slide, thereby completing the work of fixing the other end of the polytetrafluoroethylene hose, speeding up the overall testing efficiency and reducing the overall disassembly and assembly burden of the staff.

[0038] Please see Figure 2 A limiting mechanism is provided at the bottom of the threaded sleeve 8 within the slide groove 5. Under the action of the limiting mechanism, the stability of the threaded sleeve 8 sliding within the slide groove 5 is ensured, effectively preventing the threaded sleeve 8 from causing the sliding clamping table 4 to rotate during the rotation of the first threaded rod 6.

[0039] Please see Figure 4 A sliding clamping plate 10 is connected to the outer wall of the threaded cylinder 11 and the other end of the threaded cylinder 11 extends into the sliding clamping table 4. During the rotation of the second threaded rod 12, the threaded cylinder 11 slides upward, thereby ensuring that the threaded cylinder 11 drives the sliding clamping plate 10 to slide in the vertical direction, further improving the overall clamping stability.

[0040] Example 2

[0041] like Figure 4The PTFE hose bending fatigue test bench shown has an overall structure similar to that of Embodiment 1. The inner sides of both the fixed clamp 13 and the sliding clamp 10 are provided with protective sleeves, and the protective sleeves themselves are detachable. The protective sleeves prevent the fixed clamp 13 and the sliding clamp 10 from directly contacting the PTFE hose, thus effectively preventing damage to the PTFE hose during the test.

[0042] The working principle of this utility model is as follows: In use, one end of the polytetrafluoroethylene (PTFE) hose is fixed inside the fixed clamping platform 3, and the other end is inserted into the sliding clamping platform 4. Then, the stepper motor 2 on one side of the base 1 is started. Under the action of the stepper motor 2, the first threaded rod 6 is rotated. Under the action of the threaded sleeve 8, the sliding clamping platform 4 is moved to one side. Since the toothed block 7 is provided inside the slide groove 5, the toothed block 7 will drive the fixed gear 9 in the threaded sleeve 8 to rotate during the sliding process of the sliding clamping platform 4. Under the cooperation of the second threaded rod 12 and the threaded cylinder 11, the sliding clamping plate 10 is moved upward. With the cooperation of the fixed clamping plate 13 at the top, the other end of the PTFE hose is clamped. When the subsequent test is completed and the system is reset, the fixed gear 9 rotates in the opposite direction and the sliding clamping plate 10 moves downward to release the clamping of the PTFE hose, thereby speeding up the overall testing efficiency.

[0043] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A polytetrafluoroethylene (PTFE) hose bending fatigue testing platform, comprising a base (1), characterized in that: A drive assembly is provided on one side of the base (1). The output end of the drive assembly passes through the base (1) and is connected to a first threaded rod (6). A fixed clamping platform (3) is provided on one side of the top of the base (1), and a sliding clamping platform (4) that cooperates with the first threaded rod (6) is slidably provided on the other side. A fixed clamping plate (13) is provided at the top of the sliding clamping platform (4), and a sliding clamping plate (10) is provided at the bottom.

2. The polytetrafluoroethylene (PTFE) hose bending fatigue testing bench according to claim 1, characterized in that: The outer wall of the first threaded rod (6) is slidably provided with a threaded sleeve (8), and the top of the threaded sleeve (8) is connected to the sliding clamping table (4).

3. The polytetrafluoroethylene (PTFE) flexible tube bending fatigue testing stand according to claim 2, characterized in that: The top of the base (1) is provided with a groove (5) at the first threaded rod (6).

4. The polytetrafluoroethylene hose bending fatigue testing stand according to claim 3, characterized in that: The groove (5) is partially provided with a toothed block (7), the threaded sleeve (8) is rotatably provided with a fixed gear (9), and a second threaded rod (12) is connected to the top of the fixed gear (9). The bottom of the sliding clamp (10) is provided with a threaded cylinder (11) that cooperates with the second threaded rod (12).

5. The polytetrafluoroethylene hose bending fatigue testing bench according to claim 1, characterized in that: The inner sides of both the fixed clamp (13) and the sliding clamp (10) are provided with protective sleeves, and the protective sleeves themselves are detachable.

6. The polytetrafluoroethylene hose bending fatigue testing stand according to claim 1, characterized in that: The driving component is a stepper motor (2), which is used to drive the first threaded rod (6) at the output end to rotate.

7. The polytetrafluoroethylene hose bending fatigue testing stand according to claim 3, characterized in that: The bottom of the threaded sleeve (8) is located in the groove (5) and a limit mechanism is provided.

8. The polytetrafluoroethylene hose bending fatigue testing bench according to claim 1, characterized in that: The fixed clamping platform (3) is equipped with a detachable clamping component.

9. The polytetrafluoroethylene hose bending fatigue testing stand according to claim 4, characterized in that: The threaded cylinder (11) is located on the outer wall of the second threaded rod (12), and the other end of the threaded cylinder (11) extends through the sliding clamping table (4) and is connected to the sliding clamping plate (10).

10. The polytetrafluoroethylene hose bending fatigue testing bench according to claim 1, characterized in that: The base (1) is provided with a support frame at its bottom.

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