Plastic valve pressure testing device

Abstract

The utility model discloses a plastic valve pressure testing device which comprises a valve body and a base, two ends of the valve body are connected with external thread interfaces, the base is provided with a fixed plate and a movable plate, the base is provided with a sliding groove extending towards the fixed plate, the movable plate is arranged on the sliding groove in a sliding mode, and a rotary sealing cover is arranged on the fixed plate. The rotary sealing cover is connected with an external thread connector at one end of the valve body, and a liquid injection sealing cover is arranged on the movable plate and connected with an external thread connector at the other end of the valve body. The utility model provides a plastic valve pressure testing device which is high in sealing performance, good in pressure testing effect and suitable for pressure testing of plastic valves.

Description

Technical Field

[0001] The utility model relates to a pressure testing device for a plastic valve. Background Art

[0002] Plastic valves have the advantages of light weight, corrosion resistance, no scale absorption, can be integrated with plastic pipes and have a long service life. The application advantages of plastic valves in plastic pipe systems for water supply and other industrial fluids are unmatched by other valves. Plastic valves often need to be injected with high-pressure water to detect whether the valve body is leaking before leaving the factory.

[0003] During the use of the existing plastic valve pressure testing device, the connection sealing between the plastic valve pressure testing device and the valve is not high, and it is easy to leak during the pressure testing process, affecting the pressure testing data. Therefore, we introduce a plastic valve pressure testing device. Summary of the invention

[0004] The utility model aims to provide a plastic valve pressure testing device, which has high sealing performance and good pressure testing effect and is suitable for the use of plastic valve pressure testing.

[0005] To achieve the above-mentioned purpose, the technical solution of the utility model is to design a plastic valve pressure testing device, including a valve body and a base, both ends of the valve body are connected with external threaded interfaces, a fixed plate and a movable plate are provided on the base, a slide groove extending toward the fixed plate is opened on the base, the movable plate is slidably arranged on the slide groove, a rotating sealing cover is provided on the fixed plate, the rotating sealing cover is connected with the external threaded interface at one end of the valve body, a liquid injection sealing cover is provided on the movable plate, and the liquid injection sealing cover is connected with the external threaded interface at the other end of the valve body.

[0006] Preferably, the rotating sealing cover includes a turning rod, a turning handle and a first threaded cover, the turning rod is passed through the fixed plate, one end of the turning rod close to the valve body is fixedly connected to the first threaded cover, the other end of the turning rod is provided with the turning handle, and the first threaded cover and the turning handle are both located outside the fixed plate.

[0007] Preferably, the liquid injection sealing cover comprises a liquid injection tube and a second threaded cover, the second threaded cover is fixedly mounted on the movable plate, the liquid injection tube is passed through the second threaded cover, the liquid outlet end of the liquid injection tube extends into the valve body, and a pressure gauge is provided on the liquid injection tube, and the pressure gauge is located outside the valve body.

[0008] Preferably, the first threaded cover and the second threaded cover both include a cover plate, a cover edge ring and a sealing ring. A cover edge ring and a sealing ring are provided on the side of the cover plate close to the valve body. The sealing ring is located inside the cover edge ring. An internal thread is provided on the inner circumference of the cover edge ring. The first threaded cover and the second threaded cover are arranged opposite to each other.

[0009] Preferably, the first threaded cover and the second threaded cover are respectively adapted to external threaded interfaces at both ends of the valve body.

[0010] The advantages and beneficial effects of the utility model are: providing a plastic valve pressure testing device, by arranging a fixed plate and a movable plate on the base that can move closer to or farther away from each other, and then threadingly connecting the rotating sealing cover on the fixed plate and the liquid injection sealing cover on the movable plate to the external threaded interfaces at the left and right ends of the plastic valve respectively, thereby improving the tightness of the connection between the entire device and the valve body, improving the sealing, and thus making the pressure testing effect good, and being suitable for the use of plastic valve pressure testing. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the utility model.

[0012] Figure 2 It is a disassembly schematic diagram of the utility model. DETAILED DESCRIPTION

[0013] The following is a further description of the specific implementation of the present invention in conjunction with the accompanying drawings and embodiments. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the protection scope of the present invention.

[0014] The technical solution specifically implemented in this utility model is:

[0015] like Figure 1 and Figure 2 As shown, a plastic valve pressure testing device comprises a valve body 1 and a base 2, both ends of the valve body 1 are connected with external threaded interfaces 3, a fixed plate 4 and a movable plate 5 are provided on the base 2, a slide groove 6 extending toward the fixed plate 4 is opened on the base 2, the movable plate 5 is slidably arranged on the slide groove 6, a rotating sealing cover 7 is provided on the fixed plate 4, the rotating sealing cover 7 is connected with the external threaded interface at one end of the valve body 1, a liquid injection sealing cover 8 is provided on the movable plate 5, and the liquid injection sealing cover 8 is connected with the external threaded interface at the other end of the valve body 1.

[0016] The above-mentioned rotating sealing cover 7 includes a rotating rod 71, a rotating handle 72 and a first threaded cover 73. The rotating rod 71 is inserted into the fixed plate 4. One end of the rotating rod 71 close to the valve body 1 is fixedly connected with the first threaded cover 73. The other end of the rotating rod 71 is provided with the rotating handle 72. The first threaded cover 73 and the rotating handle 72 are both located outside the fixed plate 4.

[0017] The above-mentioned liquid injection sealing cover 8 includes a liquid injection tube 81 and a second threaded cover 82, wherein the second threaded cover 82 is fixedly mounted on the moving plate 5, the liquid injection tube 81 is passed through the second threaded cover 82, the liquid outlet end of the liquid injection tube 81 extends into the valve body 1, and a pressure gauge 83 is provided on the liquid injection tube 81, and the pressure gauge 83 is located outside the valve body 1

[0018] The above-mentioned first threaded cover 73 and the second threaded cover 82 both include a cover plate 9, a cover edge ring 10 and a sealing ring 11. The cover plate 9 is provided with a cover edge ring 10 and a sealing ring 11 on the side close to the valve body 1. The sealing ring 11 is located inside the cover edge ring 10. The inner circumference of the cover edge ring 10 is provided with an internal thread. The first threaded cover 73 and the second threaded cover 82 are arranged opposite to each other.

[0019] The first threaded cover 73 and the second threaded cover 82 are respectively matched with the external threaded interfaces 3 at both ends of the valve body 1 .

[0020] When in use, first push the movable plate 5 on the base 2 along the direction of the slide groove 6 to increase the spacing between the movable plate 5 and the fixed plate 4, then put the valve body 1 between the movable plate 5 and the fixed plate 4, and the liquid outlet end of the injection tube 81 of the injection sealing cover 8 extends into the valve body 1, and the external thread interface 3 at one end of the valve body 1 is threadedly connected with the second thread cover 82 of the injection sealing cover 8, and then move the movable plate 5 and the valve body 1 to align the external thread interface 3 at the other end of the valve body 1 with the first thread cover 73 of the rotating sealing cover 7, manually rotate the turning handle 72, and the turning handle 72 drives the first thread cover 73 to rotate through the turning rod 71, so that the first thread cover 73 is threadedly connected with the external thread interface 3 of the valve body 1, and the valve body 1 is installed and fixed on the plastic valve pressure testing device;

[0021] When starting the test, liquid is injected into the injection tube 81. The liquid passes through the injection tube 81 through the injection sealing cover 8 and enters the valve body 1. By observing the outer surface of the valve body 1, it can be checked whether there is valve body leakage. By observing the pressure gauge 83, the sealing pressure can be checked. The entire plastic valve pressure testing device has high sealing performance and good pressure testing effect, and is suitable for use in plastic valve pressure testing.

[0022] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A plastic valve pressure testing device, comprising a valve body and a base, wherein both ends of the valve body are connected with external threaded interfaces, characterized in that: A fixed plate and a movable plate are provided on the base, a slide groove extending toward the fixed plate is provided on the base, the movable plate is slidably provided on the slide groove, a rotating sealing cover is provided on the fixed plate, the rotating sealing cover is connected to the external threaded interface at one end of the valve body, an injection sealing cover is provided on the movable plate, and the injection sealing cover is connected to the external threaded interface at the other end of the valve body.

2. A plastic valve pressure testing device according to claim 1, characterized in that: The rotating sealing cover includes a rotating rod, a rotating handle and a first threaded cover. The rotating rod is inserted into the fixed plate. One end of the rotating rod close to the valve body is fixedly connected to the first threaded cover. The other end of the rotating rod is provided with the rotating handle. The first threaded cover and the rotating handle are both located outside the fixed plate.

3. A plastic valve pressure testing device according to claim 2, characterized in that: The liquid injection sealing cover includes a liquid injection tube and a second threaded cover, the second threaded cover is fixed on the movable plate, the liquid injection tube is passed through the second threaded cover, the liquid outlet end of the liquid injection tube extends into the valve body, and a pressure gauge is provided on the liquid injection tube, and the pressure gauge is located outside the valve body.

4. A plastic valve pressure testing device according to claim 3, characterized in that: The first threaded cover and the second threaded cover both include a cover plate, a cover edge ring and a sealing ring. A cover edge ring and a sealing ring are provided on the side of the cover plate close to the valve body. The sealing ring is located inside the cover edge ring. An internal thread is provided on the inner circumference of the cover edge ring. The first threaded cover and the second threaded cover are arranged opposite to each other.

5. A plastic valve pressure testing device according to claim 4, characterized in that: The first threaded cover and the second threaded cover are respectively adapted to the external threaded interfaces at both ends of the valve body.

Images