Pressure adapter

Abstract

The utility model discloses a pressure adapter relates to adapter field, including pipeline main part, pressure gauge main part and the adapter main part of connecting pipeline main part and pressure gauge main part, the top of adapter main part integrative sealing plate has, and the bottom of adapter main part is inserted into the sealing piston of anastomosis, and the inner wall bottom of adapter main part is provided with the connecting channel of the communication sealing plate top, wherein the inner wall top of adapter main part is provided with the through -hole of the below of sealing plate, the below of sealing plate is installed with the buffer spring of sealing piston abutment. The utility model discloses through the buffer spring of sealing plate bottom end to the instantaneous pressure is buffered, and simultaneously instantaneous pressure eliminates and sealing piston still is located above the connection channel after a small amount of downward movement, is convenient for to the instantaneous pressure of pipeline control valve opening after buffering, avoided the pressure of pipeline instantaneous and acted on pressure gauge main part, improved the service life of pressure gauge main part.

Description

Technical Field

[0001] This utility model relates to the field of adapters, specifically a pressure adapter. Background Technology

[0002] A pressure gauge is an instrument that uses an elastic element as its sensing element to measure and indicate pressures higher than ambient pressure. It is extremely widely used, found in almost all industrial processes and scientific research fields. It can be seen everywhere in fields such as heat pipelines, oil and gas transmission, water and gas supply systems, and vehicle repair and maintenance shops. Especially in industrial process control and technical measurement, mechanical pressure gauges are increasingly widely used due to the high mechanical strength and ease of production of their elastic sensing element.

[0003] Pressure gauge adapters are needed when connecting pressure gauges to pressure pipes. Pressure gauge adapters are used to connect the equipment or pipeline to the pressure gauge. There are various types of pressure gauge adapters, including welded pipe adapters, expanded pipe adapters, tee intermediate adapters, bend intermediate adapters, straight intermediate adapters, straight tapered pipe adapters, pressure gauge straight adapters, compression fittings, and so on.

[0004] Common pressure gauge adapters, when connecting the pressure gauge to the pressure pipe, allow the pressure in the pressure pipe to be directly transmitted to the inside of the pressure gauge. At the moment the pressure is switched on, the pressure gauge will be subjected to a huge pressure shock. Repeated impacts like this can easily damage the pressure gauge and reduce its service life. Utility Model Content

[0005] Based on this, the purpose of this utility model is to provide a pressure adapter to solve the technical problem that when a pressure gauge is connected to a pressure pipe, the pressure in the pressure pipe is directly transmitted to the inside of the pressure gauge. At the moment the pressure is turned on, the pressure gauge will be subjected to a huge pressure impact. Such repeated impacts can easily damage the pressure gauge and reduce its service life.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a pressure adapter, comprising a pipe body, a pressure gauge body, and an adapter body connecting the pipe body and the pressure gauge body. The top end of the adapter body is integrally formed with a sealing plate, and the bottom end of the adapter body is fitted with a sealing piston. The bottom end of the inner wall of the adapter body has a connecting channel communicating with the upper part of the sealing plate. The top end of the inner wall of the adapter body has a through hole located below the sealing plate, and a buffer spring that abuts against the sealing piston is installed below the sealing plate.

[0007] The present invention is further configured such that a first connecting pipe and a second connecting pipe are integrally formed at both ends of the adapter body.

[0008] The present invention is further configured such that a protrusion is integrally formed at the bottom of the inner wall of the first connecting pipe, and a first sealing ring is embedded and fixed at the top of the protrusion.

[0009] The present invention is further configured such that a protruding rod is integrally formed at the bottom end of the sealing piston, and a second sealing ring that seals with the adapter body is embedded and fixed in the outer wall of the sealing piston.

[0010] The present invention is further configured such that both ends of the pipe body are integrally formed with mounting flanges, and a control valve is fixed at one end of the pipe body, wherein a first mounting pipe is welded and fixed to the top of the other end of the pipe body.

[0011] The present invention is further configured such that a first mounting tube is provided at the bottom end of the pressure gauge body, and the first mounting tube is threadedly inserted into the first connecting tube and tightly connected to the first sealing ring.

[0012] The present invention is further configured such that the second connecting pipe is threaded into the first mounting pipe, and the elastic force of the buffer spring is less than the pressure in the pipe body.

[0013] In summary, the present invention has the following beneficial effects: By fixing an adapter body between the first mounting pipe and the pressure gauge body, when an instantaneous pressure is generated in the control valve pipeline body and the first mounting pipe, the pressure in the pipeline forces the sealing piston upwards. The buffer spring at the bottom of the sealing plate buffers the instantaneous pressure. Simultaneously, after the instantaneous pressure is eliminated, the sealing piston moves downwards slightly but remains above the connecting channel. When the pressure in the pipeline body is constant, it connects to the pressure gauge body through the connecting pipe, allowing the pressure gauge body to display the pressure in the pipeline body. This facilitates buffering the instantaneous pressure after the pipeline control valve is opened, preventing the instantaneous pressure generated in the pipeline from acting on the pressure gauge body and extending the service life of the pressure gauge body. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the disassembled structure of this utility model; Figure 3 This is a cross-sectional view of the adapter body of this utility model; Figure 4 For the present utility model Figure 3 Enlarged schematic diagram of the structure at point A in the middle.

[0015] In the diagram: 1. Pipe body; 2. Control valve; 3. Mounting flange; 4. Adapter body; 5. Pressure gauge body; 6. First mounting pipe; 7. First connecting pipe; 8. Second mounting pipe; 9. First sealing ring; 10. Sealing plate; 11. Through hole; 12. Buffer spring; 13. Sealing piston; 14. Protruding rod; 15. Second connecting pipe; 16. Connecting channel; 17. Protrusion; 18. Second sealing ring. Detailed Implementation

[0016] 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.

[0017] A pressure adapter, such as Figure 1-4 As shown, the device includes a pipe body 1, a pressure gauge body 5, and an adapter body 4 connecting the pipe body 1 and the pressure gauge body 5. A sealing plate 10 is integrally formed at the top of the adapter body 4, and a sealing piston 13 is fitted into the bottom of the adapter body 4. A connecting channel 16 communicating with the upper part of the sealing plate 10 is opened at the bottom of the inner wall of the adapter body 4. A through hole 11 located below the sealing plate 10 is opened at the top of the inner wall of the adapter body 4. A buffer spring 12 abutting against the sealing piston 13 is installed below the sealing plate 10. The adapter body 4 is fixedly installed between the first mounting pipe 6 and the pressure gauge body 5, allowing the device to be opened... When instantaneous pressure is generated in the main body 1 of the control valve 2 pipeline and the first mounting pipe 6, the pressure in the pipeline squeezes the sealing piston 13 to move upward. The buffer spring 12 at the bottom of the sealing plate 10 buffers the instantaneous pressure. At the same time, after the instantaneous pressure is eliminated, the sealing piston 13 moves downward slightly and is still located above the connecting channel 16. When the pressure in the main body 1 of the pipeline is constant, it is connected to the pressure gauge body 5 through the connecting pipe, so that the pressure gauge body 5 displays the pressure in the main body 1 of the pipeline. This facilitates the buffering of the instantaneous pressure after the pipeline control valve 2 is opened, avoids the pressure generated in the pipeline momentarily acting on the pressure gauge body 5, and improves the service life of the pressure gauge body 5.

[0018] The adapter body 4 has a first connecting pipe 7 and a second connecting pipe 15 integrally formed at both ends. The bottom of the inner wall of the first connecting pipe 7 has a protrusion 17 integrally formed. The top of the protrusion 17 is embedded and fixed with a first sealing ring 9. The bottom of the sealing piston 13 has a protruding rod 14 integrally formed. The outer wall of the sealing piston 13 is embedded and fixed with a second sealing ring 18 that seals with the adapter body 4. The adapter body 4 is fixed to the first mounting pipe 6 and the pressure gauge body 5 through the first connecting pipe 7 and the second connecting pipe 15 respectively. The adapter body 4 can be disassembled and replaced after the pressure gauge body 5 and the adapter body 4 are gradually unscrewed.

[0019] Furthermore, both ends of the pipe body 1 are integrally formed with mounting flanges 3, and a control valve 2 is fixed at one end of the pipe body 1. A first mounting pipe 6 is welded and fixed to the top of the other end of the pipe body 1. The bottom end of the pressure gauge body 5 is provided with a first mounting pipe 6. The first mounting pipe 6 is threaded into the first connecting pipe 7 and tightly connected to the first sealing ring 9. The second connecting pipe 15 is threaded into the first mounting pipe 6. The elastic force of the buffer spring 12 is less than the pressure in the pipe body 1. The pressure in the pipe body 1 is greater than the pressure generated by the deformation of the buffer spring 12 by 2 cm. After the buffer spring 12 buffers the instantaneous pressure, the pressure in the pipe body 1 can push the sealing piston 13 upward so that the connecting channel 16 is connected to the pipe body 1 and the pressure gauge body 5 respectively.

[0020] The working principle of this utility model is as follows: During use, the main body of the pipeline 1 is fixedly installed through the mounting flange 3. The adapter body 4 is fixedly installed between the first mounting pipe 6 and the pressure gauge body 5. When the control valve 2 is opened, the pipeline 1 and the first mounting pipe 6 generate instantaneous pressure. The pressure in the pipeline squeezes the sealing piston 13 to move upward. The buffer spring 12 at the bottom of the sealing plate 10 buffers the instantaneous pressure. At the same time, after the instantaneous pressure is eliminated, the sealing piston 13 moves downward slightly and is still located above the connecting channel 16. When the pressure in the pipeline 1 is constant, it is connected to the pressure gauge body 5 through the connecting pipe, so that the pressure gauge body 5 displays the pressure in the pipeline 1. This facilitates the buffering of the instantaneous pressure after the pipeline control valve 2 is opened, avoids the pressure generated by the pipeline momentarily acting on the pressure gauge body 5, and improves the service life of the pressure gauge body 5.

[0021] 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 pressure adapter, comprising a pipe body (1), a pressure gauge body (5), and an adapter body (4) connecting the pipe body (1) and the pressure gauge body (5), characterized in that: The top of the adapter body (4) is integrally formed with a sealing plate (10), and the bottom of the adapter body (4) is fitted with a sealing piston (13). The bottom of the inner wall of the adapter body (4) is provided with a connecting channel (16) that connects to the top of the sealing plate (10). The top of the inner wall of the adapter body (4) is provided with a through hole (11) located below the sealing plate (10). A buffer spring (12) that abuts against the sealing piston (13) is installed below the sealing plate (10).

2. A pressure adapter according to claim 1, characterized in that: The adapter body (4) has a first connecting pipe (7) and a second connecting pipe (15) integrally formed at both ends.

3. A pressure adapter according to claim 2, characterized in that: The bottom of the inner wall of the first connecting pipe (7) is integrally formed with a protrusion (17), and the top of the protrusion (17) is inlaid with a first sealing ring (9).

4. A pressure adapter according to claim 3, characterized in that: The bottom end of the sealing piston (13) is integrally formed with a protruding rod (14), and the outer wall of the sealing piston (13) is embedded with a second sealing ring (18) that seals with the adapter body (4).

5. A pressure adapter according to claim 4, characterized in that: Both ends of the pipe body (1) are integrally formed with mounting flanges (3), and a control valve (2) is fixed at one end of the pipe body (1), while a first mounting pipe (6) is welded and fixed at the top of the other end of the pipe body (1).

6. A pressure adapter according to claim 5, characterized in that: The pressure gauge body (5) is provided with a first mounting tube (6) at the bottom end. The first mounting tube (6) is threaded into the first connecting tube (7) and tightly connected to the first sealing ring (9).

7. A pressure adapter according to claim 6, characterized in that: The second connecting pipe (15) is threaded into the first mounting pipe (6), and the elastic force of the buffer spring (12) is less than the pressure in the pipe body (1).

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