Hose quick joint testing device

Abstract

The invention discloses a hose quick connector testing device which comprises a U-shaped frame, a supporting frame, a pipeline rotating mechanism, a downward pressing pipeline mechanism, a left side pipeline clamping mechanism, a right side pipeline clamping mechanism, a left side compression and tensile testing mechanism and a right side compression and tensile testing mechanism. The U-shaped frame is arranged above the pipeline rotating mechanism, the pipeline pressing mechanisms are distributed on the U-shaped frame in a bilateral symmetry mode, and the left side compression and tensile testing mechanism, the left side pipeline clamping mechanism, the right side pipeline clamping mechanism and the right side compression and tensile testing mechanism are distributed in a bilateral symmetry mode with the U-shaped frame as the center. According to the invention, the downward pressing angle can be adjusted, so that the quick joint and the test pipeline bear pressure or bending from different angles, the comprehensiveness of a test result is ensured, the performance of the joint in a real use scene is conveniently and accurately evaluated, and the universality and flexibility of equipment are enhanced.

Description

Technical Field

[0001] The present invention relates to the technical field of joint testing, and particularly to a hose quick joint testing device. Background Art

[0002] Flexible pipes, also known as flexible hoses, are pipes with good bendability, adaptability, and durability. They are usually made of metal, plastic, or rubber and are designed to withstand the pipe connection requirements under complex working conditions, especially in applications with high requirements for vibration, thermal expansion, displacement, or bending. Flexible pipes are widely used, especially in some occasions where bending or displacement compensation is required, such as equipment connection, pipe compensation, liquid transportation, gas transmission, etc. When connecting to steel pipes, quick joints are usually required. To ensure the sealing performance of the joints, a testing device is needed to conduct compressive strength tests, tensile strength tests, and bending tests on the joints.

[0003] When the existing testing device conducts a bending test on a quick joint, it is necessary to apply a downward pressure to the tested pipe through a pressing block to make the tested pipe produce a certain degree of bending, and then observe the leakage and appearance deformation of the quick joint. However, there are the following drawbacks: the angles of most pressing blocks cannot be adjusted. In actual use, the quick joint and the pipe may be subjected to pressures or bends from different angles. If the angle of the pressing block is fixed, it is impossible to simulate the working conditions of the pipe when bending at different angles, and the test results may not be comprehensive enough to accurately evaluate the performance of the joint in the actual use scenario, and further improvement is needed.

[0004] Therefore, there is an urgent need for a hose quick joint testing device. Summary of the Invention

[0005] The present invention provides a hose quick joint testing device to solve the problem that the angle of the pressing block cannot be adjusted and it is difficult to simulate different angles of bending of the pipe.

[0006] The present invention provides a hose quick joint testing device, including a U-shaped frame, a support frame, a pipe rotation mechanism, a downward pressure pipe mechanism, a left pipe clamping mechanism, a right pipe clamping mechanism, a left compressive and tensile testing mechanism, and a right compressive and tensile testing mechanism. The pipe rotation mechanism and the U-shaped frame are provided in the middle of the support frame. The U-shaped frame is arranged above the pipe rotation mechanism. The downward pressure pipe mechanisms are symmetrically distributed on the left and right of the U-shaped frame. The left compressive and tensile testing mechanism, the left pipe clamping mechanism, the right pipe clamping mechanism, and the right compressive and tensile testing mechanism are sequentially arranged on the support frame from the outside to the inside, and the left compressive and tensile testing mechanism and the left pipe clamping mechanism are symmetrically distributed with the right pipe clamping mechanism and the right compressive and tensile testing mechanism about the U-shaped frame.

[0007] For the described hose quick connector testing device, preferably, the downward pressing pipe mechanism includes a support plate, an angle adjusting component, a first hydraulic cylinder, a first tension and compression sensor, and a pressing block. The U-shaped frame is arranged in the middle of the support plate. The two ends of the support plate are rotatably provided with the angle adjusting component. The output end of the first hydraulic cylinder movably penetrates to the lower side of the angle adjusting component and is fixedly connected with the first tension and compression sensor. The lower end of the first tension and compression sensor is provided with the pressing block.

[0008] For the described hose quick connector testing device, preferably, the angle adjusting component includes a rotating plate and a rotating part. The upper end of the rotating plate is provided with the first hydraulic cylinder. The output end of the first hydraulic cylinder movably penetrates to the lower side of the rotating plate and is fixedly connected with the first tension and compression sensor. The rotating part includes a first motor, a worm, a bearing seat, a connecting shaft, and a worm gear. The first motor is installed on the support plate. The output end of the first motor is fixedly connected with the worm. The worm is meshed and connected with the worm gear. The connecting shaft is fixedly sleeved inside the worm gear. The connecting shaft movably penetrates into the support plate and is fixedly connected with the rotating plate. One end of the worm away from the first motor is fixedly connected with the bearing seat. The bearing seat is installed on the support plate. The bearing seat is used to support the rotation of the worm, so as to realize the first motor driving the worm gear to rotate. The rotation of the worm gear drives the rotating plate and the pressing block to rotate through the connecting shaft, thereby adjusting the angle of the downward pressing of the pressing block.

[0009] For the described hose quick connector testing device, preferably, both the left-side pipe clamping mechanism and the right-side pipe clamping mechanism include a rectangular frame, a cylinder, an upper support block, and a lower support block. Two upper support blocks and lower support blocks which are symmetrically distributed up and down are arranged inside the rectangular frame. The lower support block is fixedly connected to the lower inner wall of the rectangular frame. The cylinder is installed at the upper end of the rectangular frame. The output end of the cylinder movably penetrates into the rectangular frame and is fixedly connected with the upper support block.

[0010] The described hose quick connector testing device, preferably, the described pipeline rotation mechanism comprises a rectangular groove, a U-shaped plate, an electric cylinder, a left concave plate, a right concave plate, a roller and a second motor, the described rectangular groove is opened in the middle part of the described support frame, the described U-shaped frame is arranged above the described rectangular groove, the described U-shaped plate is installed below the described support frame, the described electric cylinder is installed at the lower end of the described U-shaped plate, the output end of the described electric cylinder movably passes through the described U-shaped plate and is fixedly connected to the described left concave plate and the described right concave plate through a transverse plate, the described left concave plate and the described right concave plate are both movably connected to two described rollers symmetrically distributed front and back, the described second motor is installed at the right end of the described right concave plate, and the described second motor is connected to the two described rollers on the front side through a rotating shaft transmission.

[0011] The hose quick connector testing device preferably comprises: the left-side compression and tensile testing mechanism and the right-side compression and tensile testing mechanism each comprising a second hydraulic cylinder, a second tensile pressure sensor, a bracket and a fixing clamp; the second hydraulic cylinder is mounted on the supporting frame; the output end of the second hydraulic cylinder is fixedly connected to the second tensile pressure sensor; and the end of the second tensile pressure sensor away from the second hydraulic cylinder is detachably connected to the fixing clamp via the bracket.

[0012] The beneficial effects are:

[0013] By setting a rotating component to drive the pressing block to rotate, when in use, the rotating component is controlled and adjusted to drive the rotating plate and the pressing block to rotate, thereby adjusting the downward pressing angle, so that the quick connector and the test pipe are subjected to pressure or bending from different angles, thereby ensuring the comprehensiveness of the test results, facilitating and accurately evaluating the performance of the connector in real usage scenarios, and enhancing the versatility and flexibility of the equipment.

[0014] By arranging the roller, the second motor and the electric cylinder to cooperate with each other, the test pipe can be driven to rotate. When in use, the output end of the electric cylinder is controlled to drive the roller to move upward so that the roller contacts the test pipe. The second motor is controlled to drive the two rollers to rotate, which drives the test pipe to rotate, so that the other surfaces of the test pipe can be pressed and contacted. The different surfaces of the test pipe can be pressed to ensure that the quick connector and the test pipe are subjected to the same pressure and bending force in all directions, so as to facilitate a more comprehensive evaluation of the sealing and durability of the quick connector and avoid defects that may be missed when only a single force direction is tested. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a front view of a hose quick connector test device;

[0016] Figure 2 It is a three-dimensional diagram of a hose quick connector test device;

[0017] Figure 3 Schematic structural diagram of the angle adjustment component;

[0018] Figure 4 Schematic structural diagram of the pipeline rotating mechanism;

[0019] Figure 5 Schematic structural diagram of the compression and tensile test mechanism.

[0020] In the figure:

[0021] 1. Support frame; 2-1. Left compression and tensile test mechanism; 2-2. Right compression and tensile test mechanism;

[0022] 3. Rectangular frame; 4-1. Upper support block; 4-2. Lower support block; 5. Cylinder; 6. U-shaped frame;

[0023] 7. Support plate; 8. Rotating plate; 9. First hydraulic cylinder; 10. First tensile and compressive force sensor;

[0024] 11. Pressing block; 12. Rotating component; 13. Rectangular groove;

[0025] 121. First motor; 122. Worm; 123. Bearing seat; 124. Connecting shaft; 125. Worm gear;

[0026] 14. U-shaped plate; 15. Electric cylinder; 16-1. Left concave plate; 16-2. Right concave plate;

[0027] 17-1. Front roller; 17-2. Rear roller; 18. Second motor; 19. Cross plate; 20. Bracket;

[0028] 21. Second hydraulic cylinder; 22. Second tensile and compressive force sensor; 23. Fixed clamp;

[0029] 24-1. Left pipeline clamping mechanism; 24-2. Right pipeline clamping mechanism. Detailed implementation manners

[0030] To make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are some but not all of the embodiments of the present invention. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0031] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by terms such as "upper", "lower", "front side", "rear side", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the system or component referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention. In addition, the use of terms such as "first" and "second" to limit components is only for the convenience of distinguishing the above components. Without additional statements, the above terms have no special meaning and should not be construed as indicating or implying relative importance.

[0032] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "setting" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0033] A hose quick connector testing device provided by the present invention includes a U-shaped frame, a support frame, a pipeline rotation mechanism, a downward pressing pipeline mechanism, a left pipeline clamping mechanism, a right pipeline clamping mechanism, a left compressive and tensile testing mechanism, and a right compressive and tensile testing mechanism. The pipeline rotation mechanism and the U-shaped frame are arranged in the middle of the support frame. The U-shaped frame is arranged above the pipeline rotation mechanism. The downward pressing pipeline mechanisms are symmetrically distributed on the left and right of the U-shaped frame. The left compressive and tensile testing mechanism, the left pipeline clamping mechanism, the right pipeline clamping mechanism, and the right compressive and tensile testing mechanism are sequentially arranged on the support frame from outside to inside, and the left compressive and tensile testing mechanism and the left pipeline clamping mechanism are symmetrically distributed with the right pipeline clamping mechanism and the right compressive and tensile testing mechanism about the U-shaped frame. The present invention can adjust the angle of downward pressing, so that the quick connector and the test pipeline bear pressures or bends from different angles, ensuring the comprehensiveness of the test results, facilitating the accurate evaluation of the performance of the connector in the actual use scenario, and enhancing the versatility and flexibility of the device.

[0034] The following takes a hose quick connector testing device as an example to elaborate on the entire technical process in detail.

[0035] Refer to Figures 1 to 5As shown, a quick connector testing device for a hose includes a U-shaped frame 6, a support frame 7, a pipe rotating mechanism, a pipe pressing mechanism, a left pipe clamping mechanism 24-1, a right pipe clamping mechanism 24-2, a left compressive and tensile testing mechanism 2-1, and a right compressive and tensile testing mechanism 2-2. In the middle of the support frame 7, there are provided the pipe rotating mechanism and the U-shaped frame 6. The U-shaped frame 6 is arranged above the pipe rotating mechanism. On the U-shaped frame 6, the pipe pressing mechanisms are symmetrically distributed left and right. On the support frame 7, from the outside to the inside, there are successively arranged the left compressive and tensile testing mechanism 2-1, the left pipe clamping mechanism 24-1, the right pipe clamping mechanism 24-2, and the right compressive and tensile testing mechanism 2-2. And the left compressive and tensile testing mechanism 2-1 and the left pipe clamping mechanism 24-1 and the right pipe clamping mechanism 24-2 and the right compressive and tensile testing mechanism 2-2 are symmetrically distributed left and right with the U-shaped frame 6 as the center.

[0036] Continue to refer to Figure 1 and Figure 2 As shown, both the left pipe clamping mechanism 24-1 and the right pipe clamping mechanism 24-2 include a rectangular frame 3, a cylinder 5, an upper support block 4-1, and a lower support block 4-2. Inside the rectangular frame 3, there are provided two upper support blocks 4-1 and lower support blocks 4-2 that are symmetrically distributed up and down. The lower support block 4-2 is fixedly connected to the lower inner wall of the rectangular frame 3. At the upper end of the rectangular frame 3, a cylinder 5 is installed. The output end of the cylinder 5 movably penetrates into the rectangular frame 3 and is fixedly connected to the upper support block 4-1.

[0037] Refer to Figures 1 to 3 As shown, the pipe pressing mechanism includes a support plate, an angle adjusting component, a first hydraulic cylinder 9, and a pressing block 11. The U-shaped frame 6 is arranged in the middle of the support plate 7. At both ends of the support plate 7, the angle adjusting components are rotatably provided. The output end of the first hydraulic cylinder 9 movably penetrates to the lower side of the angle adjusting component and is fixedly connected to a first tensile and compressive force sensor 10. At the lower end of the first tensile and compressive force sensor 10, a pressing block 11 is installed.

[0038] When performing the bending test, assemble and fit the quick connector. Connect the two ends of the quick connector to the corresponding end caps and connect them to a test pipeline of a certain length. Connect the water pressure pipeline inside the test pipeline and apply the specified internal pressure. Place the test pipeline on the two lower support blocks 4-2. Control the cylinder 5 to drive the upper support block 4-1 to move downward to fix the test pipeline and ensure that it remains stationary during the test. Then control the output end of the first hydraulic cylinder 9 to move downward in the vertical direction so that the pressing block 11 contacts the surface of the test pipeline, causing a certain bending moment on the test pipeline and acting on the quick connector. The pressure value generated by the first tensile and compressive force sensor 10 is sent to the controller. When the specified bending moment value is reached, maintain a load duration of 30 minutes, observe the leakage and appearance deformation of the quick connector, etc. Continue to increase the displacement, that is, the bending moment value, until the quick connector leaks or the appearance deforms, and record the bending moment value at this moment. This bending moment is the ultimate bending resistance of the quick connector; however, in actual use, the quick connector and the pipeline may be subjected to pressures or bends from different angles. If the angle of the pressing block 11 is fixed, it is impossible to simulate the working conditions of the pipeline when bending at different angles, and the test results may not be comprehensive enough to accurately evaluate the performance of the connector in the actual use scenario.

[0039] To solve the above drawbacks, the rotating plate 8 is designed to be rotatable, and the angle of the pressing block 11 is adjusted by changing the angle of the rotating plate 8. Specifically: Refer to Figure 3 As shown, the angle adjustment assembly includes a rotating plate 8 and a rotating component 12. The upper end of the rotating plate 8 is installed with a first hydraulic cylinder 9. The output end of the first hydraulic cylinder 9 movably penetrates to the lower side of the rotating plate 8 and is fixedly connected with a first tensile and compressive force sensor 10. The rotating component 12 includes a first motor 121, a worm 122, a bearing seat 123, a connecting shaft 124, and a worm gear 125. The first motor 121 is installed on the support plate 7. The output end of the first motor 121 is fixedly connected with the worm 122. The worm 122 is meshed with the worm gear 125. The connecting shaft 124 is fixedly sleeved inside the worm gear 125. The connecting shaft 124 movably penetrates into the support plate 7 and is fixedly connected with the rotating plate 8. One end of the worm 122 away from the first motor 121 is fixedly connected with the bearing seat 123. The bearing seat 123 is installed on the support plate 7. The bearing seat 123 is used to support the rotation of the worm 122, so as to realize the first motor 121 driving the worm gear 125 to rotate. The rotation of the worm gear 125 drives the rotating plate 8 and the pressing block 11 to rotate through the connecting shaft 124, thereby adjusting the angle of the pressing block 11 pressing downward. So that the quick connector and the test pipeline are subjected to pressures or bends from different angles, ensuring the comprehensiveness of the test results, facilitating the accurate evaluation of the performance of the connector in the actual use scenario, and enhancing the versatility and flexibility of the equipment.

[0040] In addition, when performing a bending test, in order to be able to perform a press test on different surfaces of the test pipe and ensure that the quick connector and the test pipe are subjected to the same pressure and bending force in all directions, it is necessary to manually rotate the pipe so that other surfaces face the pressing block 11. The manual operation process increases the workload of the workers, and for this reason the support frame 1 is provided with the pipe rotation mechanism.

[0041] like Figure 4 As shown, the pipeline rotation mechanism includes a rectangular groove 13, a U-shaped plate 14, an electric cylinder 15, a left concave plate 16-1, a right concave plate 16-2, a roller and a second motor 18, wherein the roller includes a front roller 17-1 and a rear roller 17-2, a rectangular groove 13 is opened in the middle of the support frame 1, a U-shaped frame is arranged above the rectangular groove 13, a U-shaped plate 14 is installed below the support frame, an electric cylinder 15 is installed at the lower end of the U-shaped plate 14, an output end of the electric cylinder 15 movably passes through the U-shaped plate 14 and is fixedly connected to the left concave plate 16-1 and the right concave plate 16-2 through a transverse plate 19, two rollers symmetrically distributed front and back are movably connected in the left concave plate 16-1 and the right concave plate 16-2, a second motor 18 is installed at the right end of the right concave plate 16-2, and the second motor 18 is connected to the two front rollers through a rotating shaft transmission.

[0042] When in use, the cylinder 5 drives the upper support block 4 to move upward, controls the output end No. 1 horizontal plate of the electric cylinder 15 to drive the concave plate 16 and the front roller 17-1 and the rear roller 17-2 to move upward, so that the front roller 17-1 contacts the test pipe, controls the second motor 18 to drive the two front rollers 17-1 on the front side to rotate, drives the test pipe to rotate, and makes the other sides of the test pipe face the pressing 11. No manual operation is required by workers, which facilitates a more comprehensive evaluation of the sealing and durability of the quick connector and avoids defects that may be missed when only testing a single force direction.

[0043] It should be noted that, taking the left concave plate 16-1 as an example, the front roller 17-1 and the rear roller 17-2 in the left concave plate 16-1 are in close contact with each other. When the front roller 17-1 rotates, the rear roller 17-2 rotates in the opposite direction by virtue of the friction between the two. The pipeline can be driven to rotate by the two oppositely rotating front rollers 17-1 and rear rollers 17-2. In summary, the right concave plate 16-2 is the same as the left concave plate 16-1.

[0044] like Figure 5As shown in the figure, both the left compression and tension testing mechanism 2-1 and the right compression and tension testing mechanism 2-2 include a second hydraulic cylinder 21, a second tension and compression sensor 22, a bracket 20, and a fixed clamp 23. The second hydraulic cylinder 21 is installed on the support frame 1. The output end of the second hydraulic cylinder 21 is fixedly connected to the second tension and compression sensor 22. One end of the second tension and compression sensor 22 away from the second hydraulic cylinder 21 is detachably connected to the fixed clamp 23 through the bracket 20. The second tension and compression sensor 22 is used to measure the values of tension and pressure.

[0045] After the bending test of the quick connector is completed, the compression and tension tests of the quick connector are carried out, mainly through the left compression and tension testing mechanism 2-1 and the right compression and tension testing mechanism 2-2.

[0046] Specifically: When carrying out the tension test, assemble and fit the quick connector. Connect the two ends of the quick connector to the corresponding end caps and a test pipe of a certain length. The inside of the test pipe is connected to the water pressure pipe, and a specified internal pressure is applied. Fix the two fixed clamps 23 on the surfaces of the two test pipes. Control the output end of the second hydraulic cylinder 21 to shorten, and gradually apply axial tension until the specified tension value to carry out the tensile strength test. Record the applied tension value curve. Under the specified tension, maintain the tension duration for 30 minutes, and then unload. Observe the leakage and appearance deformation of the quick connector and other situations. Reapply axial tension until the quick connector leaks or the appearance deforms, and record the axial tension at this moment. This tension is the ultimate axial tensile resistance of the quick connector; Similarly, when carrying out the compression test, repeat the above assembly, fitting and water injection operations. Separate the fixed clamp 23 from the second tension and compression sensor 22, so that the two second tension and compression sensors 22 respectively abut against the left and right sides of the two groups of test pipes. Control the second hydraulic cylinder 21 to gradually apply axial pressure until the specified pressure value to carry out the compression test. Record the applied pressure value curve. Under the specified pressure, maintain the pressure duration for 30 minutes, and then unload. Observe the leakage and appearance deformation of the quick connector and other situations. Reapply axial pressure until the quick connector leaks or the appearance deforms, and record the axial pressure at this moment. This pressure is the ultimate axial compressive resistance of the quick connector.

[0047] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A hose quick connector testing device, characterized in that, It includes a U-shaped frame, a support frame, a pipe rotation mechanism, a downward pressing pipe mechanism, a left pipe clamping mechanism, a right pipe clamping mechanism, a left compression and tension testing mechanism, and a right compression and tension testing mechanism. The pipe rotation mechanism and the U-shaped frame are arranged in the middle of the support frame. The U-shaped frame is arranged above the pipe rotation mechanism. The downward pressing pipe mechanism is symmetrically distributed left and right on the U-shaped frame. The left compression and tension testing mechanism, the left pipe clamping mechanism, the right pipe clamping mechanism, and the right compression and tension testing mechanism are sequentially arranged on the support frame from outside to inside. And the left compression and tension testing mechanism and the left pipe clamping mechanism are symmetrically distributed left and right with the U-shaped frame as the center with the right pipe clamping mechanism and the right compression and tension testing mechanism.

2. The hose quick connector testing device according to claim 1, wherein The downward pressing pipe mechanism includes a support plate, an angle adjustment component, a first hydraulic cylinder, a first tensile and compressive force sensor, and a pressing block. The U-shaped frame is arranged in the middle of the support plate. The two ends of the support plate are rotatably provided with the angle adjustment component. The output end of the first hydraulic cylinder movably penetrates to the lower side of the angle adjustment component and is fixedly connected with the first tensile and compressive force sensor. The lower end of the first tensile and compressive force sensor is provided with the pressing block.

3. The hose quick connector testing device according to claim 2, wherein, The angle adjustment component includes a rotating plate and a rotating component. The first hydraulic cylinder is installed at the upper end of the rotating plate. The output end of the first hydraulic cylinder movably penetrates to the lower side of the rotating plate and is fixedly connected with the first tensile and compressive force sensor. The rotating component includes a first motor, a worm, a bearing seat, a connecting shaft, and a worm gear. The first motor is installed on the support plate. The output end of the first motor is fixedly connected with the worm. The worm is meshed with the worm gear. The connecting shaft is fixedly sleeved inside the worm gear. The connecting shaft movably penetrates into the support plate and is fixedly connected with the rotating plate. One end of the worm away from the first motor is fixedly connected with the bearing seat. The bearing seat is installed on the support plate. The bearing seat is used to support the rotation of the worm to realize the first motor driving the worm gear to rotate. The rotation of the worm gear drives the rotating plate and the pressing block to rotate through the connecting shaft, so as to adjust the angle of the pressing block pressing downward.

4. The hose quick-connect fitting testing device according to claim 3, characterized in that, Both the left pipe clamping mechanism and the right pipe clamping mechanism include a rectangular frame, a cylinder, an upper support block, and a lower support block. Two upper support blocks and lower support blocks are symmetrically distributed up and down inside the rectangular frame. The lower support block is fixedly connected to the lower inner wall of the rectangular frame. The cylinder is installed at the upper end of the rectangular frame. The output end of the cylinder movably penetrates into the rectangular frame and is fixedly connected with the upper support block.

5. The hose quick connector testing device according to any one of claims 1 to 4, characterized in that, The pipeline rotation mechanism includes a rectangular groove, a U-shaped plate, an electric cylinder, a left concave plate, a right concave plate, a roller and a second motor. The rectangular groove is opened in the middle of the support frame, the U-shaped frame is arranged above the rectangular groove, the U-shaped plate is installed below the support frame, the electric cylinder is installed at the lower end of the U-shaped plate, the output end of the electric cylinder movably passes through the U-shaped plate and is fixedly connected to the left concave plate and the right concave plate through a cross plate, the left concave plate and the right concave plate are both movably connected with two rollers symmetrically distributed front and back, the second motor is installed at the right end of the right concave plate, and the second motor is connected to the two front rollers through a rotating shaft transmission.

6. The hose quick connector testing device according to claim 5, wherein The left-side compression and tensile testing mechanism and the right-side compression and tensile testing mechanism both include a second hydraulic cylinder, a second tensile pressure sensor, a bracket and a fixing clamp. The second hydraulic cylinder is installed on the supporting frame. The output end of the second hydraulic cylinder is fixedly connected to the second tensile pressure sensor. The end of the second tensile pressure sensor away from the second hydraulic cylinder is detachably connected to the fixing clamp via the bracket.

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