Strength testing device for polymer PE pipe production

Abstract

The utility model belongs to the technical field of PE (polyethylene) production pipes, and particularly discloses a strength testing device for high-molecular PE pipe production, which comprises a device frame, a protractor is arranged at the top of the device frame, a pipe is detachably mounted on the device frame through a clamping mechanism, a fixing shaft is fixedly arranged on the inner side of the protractor in a penetrating manner, and the fixing shaft is connected with the protractor. The outer surface of the fixing shaft is rotationally connected with a bending frame, and the top of the bending frame is fixedly connected with a pressing handle. According to the strength testing device for polymer PE pipe production, a PE pipe can be kept relatively stable in the strength testing process through the clamping mechanism and the positioning mechanism, the pipe can be bent by shifting a pressing handle, in the bending strength testing process of a standard PE pipe, the abrasion resistance of the pipe can be tested through the abrasion resistance testing mechanism, and the strength of the PE pipe can be tested. The device is not limited to a single bending strength test any more, and the performance of the PE pipe can be evaluated more comprehensively, including the durability and the stability of the PE pipe in actual use.

Description

Technical Field

[0001] The present application relates to the technical field of PE pipe production, and specifically to a strength testing device for polymer PE pipe production. Background Art

[0002] Polymer PE pipe refers to pipes made of high-density polyethylene or other types of polyethylene (such as linear low-density polyethylene, LLDPE). These pipes are widely used in water supply, drainage, chemical transportation and other industrial and agricultural applications.

[0003] Currently, when testing the strength of PE pipes, the PE pipes are usually bent to test their load-bearing capacity and bending strength. However, existing strength testing devices have complex structures and can only test the bending strength of PE pipes. The single bending strength test easily limits the understanding and evaluation of the multi-faceted performance of the pipe, making it impossible to evaluate the quality of the pipe from multiple aspects. Utility Model Content

[0004] In view of this, the purpose of the present invention is to solve the shortcomings of the background technology and to propose a strength testing device for polymer PE pipe production to solve the problems existing in the prior art.

[0005] To achieve the above objectives, the utility model provides a strength testing device for polymer PE pipe production, comprising a device frame, a protractor is provided on the top of the device frame, a pipe is detachably mounted on the device frame through a locking mechanism, a fixed shaft is fixedly passed through the inner side of the protractor, a bending frame is rotatably connected to the outer surface of the fixed shaft, a pressure handle is fixedly connected to the top of the bending frame, a positioning mechanism is provided on the inner side of the bending frame, and a wear-resistant testing mechanism is provided on the device frame.

[0006] Preferably, the locking mechanism includes a screw threadedly sleeved on the inner surface of the device frame, a handle is provided at one end of the screw away from the device frame, and a clamping seat is rotatably connected to the end of the screw away from the handle. The pipe (i.e., PE pipe) can be preliminarily fixed through the locking mechanism.

[0007] Preferably, the positioning mechanism includes a positioning block slidably connected to the inner side of the bending frame, and the outer surface of the bending frame is provided with a plurality of positioning holes, and the positioning block can be moved to the bending position of the pipe through the positioning mechanism.

[0008] Preferably, a screw is movably inserted into the inner side of the positioning block, and the outer surface of the screw is movably inserted into the inner side of the positioning hole, and a butterfly cap is threadedly sleeved on the outer surface of the screw.

[0009] Preferably, the wear-resistant testing mechanism includes a motor fixedly mounted on the bottom of the device frame, the output end of the motor is fixedly connected to a screw rod, and the wear-resistant testing mechanism can only perform wear resistance tests on PE pipes of standard diameter.

[0010] Preferably, a shift plate is threadedly sleeved on the outer surface of the screw rod, and the outer surface of the shift plate is slidably connected to the inner side of the device frame, and a friction disk is provided at one end of the shift plate close to the pipe.

[0011] Compared with the prior art, the present invention has the following beneficial effects:

[0012] 1. This strength testing device for polymer PE pipe production uses a locking mechanism and a positioning mechanism to keep the PE pipe relatively stable during the strength test. The pipe can be bent by turning the pressure handle. During the bending strength test of standard PE pipe, the wear resistance of the pipe can be tested through the wear resistance testing mechanism. The device is no longer limited to a single bending strength test and can more comprehensively evaluate the performance of PE pipes, including their durability and stability in actual use.

[0013] 2. This strength testing device for polymer PE pipe production can quickly and accurately adapt to PE pipes of different diameters by adjusting the position of the positioning block and using different positioning holes. This flexibility makes the device suitable not only for standard-sized PE pipes, but also for a variety of custom sizes or pipes with special requirements. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the overall structure of this application;

[0015] Figure 2 This is a schematic diagram of the back structure of the device of this application;

[0016] Figure 3 This is a schematic diagram of the surface structure of the positioning block of this application;

[0017] Figure 4 This is a schematic diagram of the cross-sectional structure of the device frame of this application.

[0018] Among them: 1. Device frame; 2. Protractor; 3. Pipe; 4. Screw; 5. Rotary handle; 6. Clamping seat; 7. Fixed shaft; 8. Bending frame; 9. Pressing handle; 10. Positioning block; 11. Positioning hole; 12. Screw; 13. Butterfly cap; 14. Motor; 15. Screw; 16. Shift plate; 17. Friction disc. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0020] See also Figure 1-4 A strength testing device for polymer PE pipe production includes a device frame 1, a protractor 2 is provided on the top of the device frame 1, a pipe 3 is detachably mounted on the device frame 1 through a locking mechanism, a fixed shaft 7 is fixedly passed through the inner side of the protractor 2, and a bending frame 8 is rotatably connected to the outer surface of the fixed shaft 7, a pressure handle 9 is fixedly connected to the top of the bending frame 8, a positioning mechanism is provided on the inner side of the bending frame 8, and a wear resistance testing mechanism is provided on the device frame 1.

[0021] Through the above technical solution, during the strength test of the PE pipe, the device can initially stabilize the pipe 3 through the locking mechanism in conjunction with the positioning mechanism, and then rotate the pressure handle 9 to drive the bending frame 8 to rotate, so that the pipe 3 can be subjected to a bending test. In conjunction with the wear resistance testing mechanism, the wear resistance test can and can only be performed on the pipe 3 of standard diameter, so that the pipe 3 can undergo bending and wear resistance tests at the same time.

[0022] Specifically, the locking mechanism includes a screw rod 4 threadedly sleeved on the inner surface of the device frame 1 , a handle 5 is provided at one end of the screw rod 4 away from the device frame 1 , and a clamping seat 6 is rotatably connected to the other end of the screw rod 4 away from the handle 5 .

[0023] Through the above technical solution, the outer surface of the holder 6 is slidably connected to the inner side of the device frame 1, and is relatively limited by the device frame 1. When the handle 5 is rotated, the holder 6 can only move axially along the screw 4.

[0024] Specifically, the positioning mechanism includes a positioning block 10 slidably connected to the inner side of the bending frame 8 , and a plurality of positioning holes 11 are formed on the outer surface of the bending frame 8 .

[0025] Through the above technical solution, three groups of positioning holes 11 are designed, and the screws 12 can pass through the corresponding positioning holes 11 respectively so as to bend PE pipes of different diameters.

[0026] Specifically, a screw 12 is movably inserted into the inner side of the positioning block 10 , and the outer surface of the screw 12 is movably inserted into the inner side of the positioning hole 11 . A butterfly cap 13 is threadedly sleeved on the outer surface of the screw 12 .

[0027] Through the above technical solution, the butterfly cap 13 can gradually approach the bending frame 8 during the process of rotating along the surface of the screw 12, thereby stably limiting the positioning block 10.

[0028] Specifically, the wear-resistant testing mechanism includes a motor 14 fixedly mounted on the bottom of the device frame 1 , and a screw rod 15 is fixedly connected to the output end of the motor 14 .

[0029] Through the above technical solution, the motor 14 can drive the screw rod 15 to rotate after being started. During this process, since the shift plate 16 is relatively limited by the device frame 1, the shift plate 16 can be displaced longitudinally along the screw rod 15.

[0030] Specifically, a shift plate 16 is threadedly sleeved on the outer surface of the screw rod 15 , and the outer surface of the shift plate 16 is slidably connected to the inner side of the device frame 1 . A friction disk 17 is provided at one end of the shift plate 16 close to the pipe 3 .

[0031] Through the above technical solution, the shift plate 16 can drive the friction disc 17 to move synchronously during the process of moving up and down, so that the friction disc 17 can rub back and forth along the surface of the standard PE pipe.

[0032] Working principle: When the device is conducting strength testing on the pipe 3 (i.e., PE pipe), the pipe 3 can be first placed in a vertical state and fit on the arc surface of the outer surface of the protractor 2. Then, the handle 5 is rotated to drive the screw 4 to rotate. During this process, the screw 4 will gradually approach the pipe 3, and the holder 6 is relatively limited by the device frame 1. Therefore, the holder 6 can be driven to move synchronously with the forward movement of the screw 4 until the pipe 3 is firmly clamped. After that, the pressure handle 9 can be turned to make the bending frame 8 rotate along the fixed axis 7. As the bending frame 8 rotates, the positioning block 10 stuck on the outer surface of the pipe 3 can bend the pipe 3, thereby testing its bending strength. During the test, the bending degree of the pipe 3 can be observed according to the rotation angle of the bending frame 8 on the protractor 2. During the bending strength test, the screw 12 can be passed through different positioning holes 11, and the positioning block 10 can be limited by the butterfly cap 13, so as to adjust the position of the positioning block 10 so that the bending strength test can be performed on pipes 3 of different diameters. When the screw 12 passes through the uppermost positioning hole 11, the bending strength test of the standard designed PE pipe is performed. At this time, the standard PE pipe can be passed through the friction disk 17, and the inner wall of the friction disk 17 can just fit the outer surface of the pipe 3. While performing the bending strength test, the motor 14 can be turned on to drive the screw rod 15 to rotate, thereby linking the shift plate 16 to move back and forth, that is, the friction disk 17 can repeatedly rub along the outer surface of the standard PE pipe to test the wear resistance of the standard PE pipe.

[0033] In summary, the strength testing device in this application not only provides more testing functions and flexibility, but also improves the accuracy of the test and the comprehensive performance evaluation capability, which is of great significance for the manufacturing and quality control of PE pipes.

[0034] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A strength testing device for polymer PE pipe production, comprising a device frame (1), characterized in that: A protractor (2) is provided on the top of the device frame (1), a pipe (3) is detachably mounted on the device frame (1) via a locking mechanism, a fixed shaft (7) is fixedly passed through the inner side of the protractor (2), a bending frame (8) is rotatably connected to the outer surface of the fixed shaft (7), a pressing handle (9) is fixedly connected to the top of the bending frame (8), a positioning mechanism is provided on the inner side of the bending frame (8), and a wear resistance testing mechanism is provided on the device frame (1).

2. A strength testing device for polymer PE pipe production according to claim 1, characterized in that: The locking mechanism comprises a screw rod (4) threadedly sleeved on the inner surface of the device frame (1); a screw handle (5) is provided at one end of the screw rod (4) away from the device frame (1); and a locking seat (6) is rotatably connected to the other end of the screw rod (4) away from the screw handle (5).

3. The strength testing device for polymer PE pipe production according to claim 1, characterized in that: The positioning mechanism comprises a positioning block (10) slidably connected to the inner side of the bending frame (8), and the outer surface of the bending frame (8) is provided with a plurality of groups of positioning holes (11).

4. A strength testing device for polymer PE pipe production according to claim 3, characterized in that: A screw (12) is movably inserted into the inner side of the positioning block (10), and the outer surface of the screw (12) is movably inserted into the inner side of the positioning hole (11). A butterfly cap (13) is threadedly sleeved on the outer surface of the screw (12).

5. The strength testing device for polymer PE pipe production according to claim 1, characterized in that: The wear-resistant testing mechanism comprises a motor (14) fixedly mounted on the bottom of a device frame (1), and a screw rod (15) is fixedly connected to the output end of the motor (14).

6. A strength testing device for polymer PE pipe production according to claim 5, characterized in that: The outer surface of the screw rod (15) is threadedly sleeved with a shift plate (16), and the outer surface of the shift plate (16) is slidably connected to the inner side of the device frame (1), and a friction disk (17) is provided at one end of the shift plate (16) close to the pipe (3).

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