Plastic valve pressure testing device

Abstract

The utility model discloses a plastic valve pressure testing device, and belongs to the technical field of plastic valves. The device mainly comprises a cabinet body, a workbench is fixedly installed at the upper end of the cabinet body, a rack is fixedly installed at the upper end of the workbench, a jig is fixedly installed at the lower end of the interior of the rack, a valve body is arranged at the upper end of the jig, an extrusion assembly is fixedly installed at the top end of the rack, and a pressing assembly is fixedly installed on the left side of the rack. A detection assembly is fixedly installed on the right side of the rack, the extrusion air cylinder is fixedly installed at the top end of the rack, a first piston rod is fixedly installed at the lower end of the extrusion air cylinder, an extrusion block is fixedly installed at the lower end of the first piston rod, and a driving rod is fixedly connected to the front end of the crank connecting rod and penetrates through the left side of the rack. The front end of the driving rod is fixedly connected with a pressing disc, and the front end of the detection head is fixedly provided with an airtight instrument. The plastic valve pressure testing device can detect the air pressure performance and the pressure resistance of the valve body.

Description

Technical Field

[0001] The invention relates to the technical field of plastic valves, and more specifically, to a pressure testing device for plastic valves. Background Art

[0002] As the application of plastic pipes, such as polyethylene gas pipes, continues to grow in the gas industry, the demand for plastic valves, such as polyethylene valves, is also gradually increasing. However, the quality of polyethylene valves in their application remains a subject of considerable doubt and concern. This is largely due to the current lack of specialized testing equipment and verification for these products. Traditional plastic valve sealing test equipment is generally designed based on metal valves, but the sealing test pressures for plastic valves are generally 0.6MPa and 2.5kPa, which are significantly lower than those for conventional metal valves. Consequently, conventional testing equipment is prone to unstable pressure control when conducting lower pressure tests, and some even fail to perform tests properly. Common torque test equipment for plastic valves typically utilizes manual torque wrenches, which are inconvenient to operate, have low accuracy, and struggle to meet the torque operating speed requirements specified in relevant standards.

[0003] Therefore, it is necessary to provide a plastic valve pressure testing device to solve the above problems. Utility Model Content

[0004] In view of the above-mentioned problems existing in the prior art, the purpose of the embodiments of the present application is to provide a plastic valve pressure testing device that can detect the air pressure and pressure resistance of the valve body.

[0005] The technical solution adopted by the present application to solve its technical problem is: a plastic valve pressure testing device, including a cabinet, a workbench is fixedly installed on the upper end of the cabinet, a frame is fixedly installed on the upper end of the workbench, a jig is fixedly installed on the lower end of the interior of the frame, a valve body is provided on the upper end of the jig, an extrusion assembly is fixedly installed on the top of the frame, a clamping assembly is fixedly installed on the left side of the frame, and a detection assembly is fixedly installed on the right side of the frame.

[0006] Furthermore, the extrusion assembly includes an extrusion cylinder, which is fixedly mounted on the top of the frame, a piston rod 1 is fixedly mounted on the lower end of the extrusion cylinder, and an extrusion block is fixedly mounted on the lower end of the piston rod 1.

[0007] Furthermore, the clamping assembly includes a driving cylinder, which is fixedly installed on the left side of the frame. The front end of the driving cylinder is fixedly installed with a piston rod 2, the front end of the piston rod 2 is fixedly connected to a crank connecting rod, the front end of the crank connecting rod is fixedly connected to a driving rod, the driving rod passes through the left side of the frame, and the front end of the driving rod is fixedly connected to a clamping plate.

[0008] Furthermore, an upper cylinder is fixedly installed at the middle position of the frame, a piston rod three is fixedly installed at the front end of the upper cylinder, and a fixed plate is fixedly installed at the front end of the piston rod three.

[0009] Furthermore, the detection component includes a side cylinder, which is fixedly installed on the right side of the frame. The front end of the side cylinder is fixedly installed with a piston rod four, the front end of the piston rod four is fixedly installed with a crank connecting rod two, the front end of the crank connecting rod two is fixedly installed with a drive rod two, the front end of the drive rod two is fixedly installed with a detection head, and the front end of the detection head is fixedly installed with an airtightness meter.

[0010] Furthermore, a universal wheel is fixedly mounted on the lower end of the cabinet.

[0011] The beneficial effect of the present utility model is that the driving rod 2 moves forward to drive the front end detection head to move forward, the detection head moves forward and extends into the valve body through the valve port on the right side of the valve body, the front end of the detection head extends into the inner side of the valve body to record data for the subsequent detection, and the other side of the detection head is used to press and fix the right side valve port of the valve body. After the installation is completed, the airtightness instrument is started to ventilate and perform air pressure detection, and the detected data will be received through an external controller. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The drawings constituting part of the present invention are provided to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are provided to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0013] Figure 1 This is an overall schematic diagram of a plastic valve pressure testing device in this application;

[0014] Figure 2 for Figure 1 Front structural diagram of the middle frame;

[0015] Figure 3 for Figure 1 Schematic diagram of the back structure of the middle rack;

[0016] In the figure: 1. Cabinet; 2. Workbench; 3. Frame; 4. Crank connecting rod; 5. Driving cylinder; 6. Clamping plate; 7. Valve body; 8. Upper cylinder; 9. Extrusion cylinder; 10. Extrusion block; 11. Fixed plate; 12. Driving rod; 13. Universal wheel; 14. Inspection head; 15. Jig; 16. Side cylinder. DETAILED DESCRIPTION

[0017] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0018] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meaning as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0019] In the present invention, unless otherwise specified, directions such as "up" and "down" are generally used with respect to the directions shown in the accompanying drawings, or with respect to the vertical, perpendicular or gravity direction; similarly, for ease of understanding and description, "left" and "right" are generally used with respect to the left and right shown in the accompanying drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned direction words are not used to limit the present invention.

[0020] like Figure 1-3 As shown, the present application provides a plastic valve pressure testing device, including a cabinet 1, a workbench 2 is fixedly installed on the upper end of the cabinet 1, a frame 3 is fixedly installed on the upper end of the workbench 2, a jig 15 is fixedly installed on the lower end of the inside of the frame 3, a valve body 7 is provided on the upper end of the jig 15, an extrusion assembly is fixedly installed on the top of the frame 3, a clamping assembly is fixedly installed on the left side of the frame 3, and a detection assembly is fixedly installed on the right side of the frame 3.

[0021] The extrusion assembly includes an extrusion cylinder 9, which is fixedly mounted on the top of the frame 3. A piston rod 1 is fixedly mounted on the lower end of the extrusion cylinder 9, and an extrusion block 10 is fixedly mounted on the lower end of the piston rod 1.

[0022] The clamping assembly includes a driving cylinder 5, which is fixedly installed on the left side of the frame 3. The front end of the driving cylinder 5 is fixedly installed with a piston rod 2, the front end of the piston rod 2 is fixedly connected to a crank connecting rod 4, the front end of the crank connecting rod 4 is fixedly connected to a driving rod 12, the driving rod 12 passes through the left side of the frame 3, and the front end of the driving rod 12 is fixedly connected to a clamping plate 6.

[0023] An upper cylinder 8 is fixedly mounted at the middle portion of the frame 3 , a piston rod 3 is fixedly mounted at the front end of the upper cylinder 8 , and a fixed plate 11 is fixedly mounted at the front end of the piston rod 3 .

[0024] The detection component includes a side cylinder 16, which is fixedly installed on the right side of the frame 3. The front end of the side cylinder 16 is fixedly installed with a piston rod 4, the front end of the piston rod 4 is fixedly installed with a crank connecting rod 2, the front end of the crank connecting rod 2 is fixedly installed with a driving rod 2, the front end of the driving rod 2 is fixedly installed with a detection head 14, and the front end of the detection head 14 is fixedly installed with an airtightness instrument.

[0025] A universal wheel 13 is fixedly installed at the lower end of the cabinet 1. By fixing the universal wheel 13 at the lower end of the cabinet 1, the cabinet can be moved conveniently.

[0026] Specifically, the staff first places the valve body 7 on the jig 15. After placing it on the jig 15, the staff starts the driving cylinder 5. The internal air pressure of the driving cylinder 5 will drive the front piston rod 2 to extend forward. The forward extension of the piston rod 2 drives the front crank connecting rod 4 to move forward. The forward movement of the crank connecting rod 4 drives the front driving rod 12 to move forward. The forward movement of the driving rod 12 drives the front clamping plate 6 to approach one side of the valve body 7 and presses and blocks the valve port. After the left side of the valve body 7 is pressed, the upper cylinder 8 is started again. The upper cylinder 8 starts to drive the front piston rod 3 to extend downward. The piston rod 3 extends downward to drive the fixed plate 11 to approach the upper valve port of the valve body 7 and fix it to prevent the valve body 7 from becoming unstable during the inspection process.

[0027] The right side of the valve body 7 starts the side cylinder 16, and the side cylinder 16 starts to drive the front piston rod four to extend forward. The piston rod four extends forward and drives the front crank connecting rod 2 to push forward. The crank connecting rod 2 pushes forward and drives the front driving rod 2 to move forward. The driving rod 2 moves forward and drives the front detection head 14 to move forward. The detection head 14 moves forward and extends through the valve port on the right side of the valve body 7 into the valve body 7. The front end of the detection head 14 extends into the inside of the valve body 7 to record data for the next detection, and the other side of the detection head 14 is used to press and fix the right side valve port of the valve body 7. After the installation is completed, the airtightness instrument is started to ventilate for air pressure detection, and the detected data will be received through the external controller.

[0028] After the ventilation test of the detection head 14 is completed, the staff starts the extrusion cylinder 9, and the extrusion cylinder 9 starts to drive the piston rod to extend downward. The downward extension of the piston rod drives the extrusion block 10 at the lower end to move downward. The extrusion block 10 moves downward to perform an extrusion test on the valve body 7 to ensure whether the torque at the connection of the valve port of the valve body 7 is normal. If the torque of the valve port is abnormal, the valve body 7 will swing with the extrusion, thereby verifying the pressure resistance test of the valve body 7.

[0029] Obviously, the embodiments described above are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0030] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, tasks, devices, components and / or combinations thereof.

[0031] It should be noted that the terms "first," "second," and the like in the specification and claims of this application and the accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein.

[0032] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

[0033] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiment. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, certain improvements and modifications that do not depart from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A plastic valve pressure testing device, characterized by: The invention comprises a cabinet (1), a workbench (2) is fixedly mounted on the upper end of the cabinet (1), a frame (3) is fixedly mounted on the upper end of the workbench (2), a jig (15) is fixedly mounted on the lower end of the frame (3), a valve body (7) is provided on the upper end of the jig (15), an extrusion assembly is fixedly mounted on the top end of the frame (3), a pressing assembly is fixedly mounted on the left side of the frame (3), and a detection assembly is fixedly mounted on the right side of the frame (3).

2. A plastic valve pressure testing device according to claim 1, characterized in that: The extrusion assembly includes an extrusion cylinder (9), which is fixedly mounted on the top of the frame (3), a piston rod 1 is fixedly mounted on the lower end of the extrusion cylinder (9), and an extrusion block (10) is fixedly mounted on the lower end of the piston rod 1.

3. A plastic valve pressure testing device according to claim 1, characterized in that: The clamping assembly includes a driving cylinder (5), the driving cylinder (5) is fixedly mounted on the left side of the frame (3), a piston rod 2 is fixedly mounted on the front end of the driving cylinder (5), a crank connecting rod (4) is fixedly connected to the front end of the piston rod 2, a driving rod (12) is fixedly connected to the front end of the crank connecting rod (4), the driving rod (12) passes through the left side of the frame (3), and a clamping plate (6) is fixedly connected to the front end of the driving rod (12).

4. A plastic valve pressure testing device according to claim 1, characterized in that: An upper cylinder (8) is fixedly mounted at the middle portion of the frame (3), a piston rod three is fixedly mounted at the front end of the upper cylinder (8), and a fixed plate (11) is fixedly mounted at the front end of the piston rod three.

5. The plastic valve pressure testing device according to claim 1, characterized in that: The detection component includes a side cylinder (16), the side cylinder (16) is fixedly installed on the right side of the frame (3), the front end of the side cylinder (16) is fixedly installed with a piston rod 4, the front end of the piston rod 4 is fixedly installed with a crank connecting rod 2, the front end of the crank connecting rod 2 is fixedly installed with a driving rod 2, the front end of the driving rod 2 is fixedly installed with a detection head (14), and the front end of the detection head (14) is fixedly installed with an airtightness instrument.

6. A plastic valve pressure testing device according to claim 1, characterized in that: A universal wheel (13) is fixedly mounted on the lower end of the cabinet (1).

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