Pressure gauge protection joint

Abstract

The utility model discloses a pressure instrument protection joint relates to pressure instrument technical field, including protection joint, the inside bottom fixed connection of protection joint has first buffer shell, the inside top fixed connection of protection joint has second buffer shell, first buffer shell and second buffer shell are linked through buffer pipeline between, the top fixed connection of protection joint has pressure gauge, the intercommunication between pressure gauge and second buffer shell. The utility model discloses a conical inclined plane can be designed at protection joint bottom, can carry out the preliminary buffer to the high -pressure flow of being measured, then through the first buffer shell in protection joint, buffer pipeline and second buffer shell to high -pressure flow carries out multiple buffering, makes the impact of high -pressure flow can greatly slow down, thereby solved the technical problem that the elastic element in pressure gauge inside can be damaged by the high impact of high -pressure flow, thereby protected pressure gauge itself, and further prolonged the service life of pressure gauge.

Description

Technical Field

[0001] This utility model relates to the field of pressure instrument technology, specifically a pressure instrument protection connector. Background Technology

[0002] Pressure gauges are instruments that use elastic elements as sensing elements to measure and indicate pressures higher than ambient pressure. They are extremely widely used, found in almost all industrial processes and scientific research fields. They can be seen everywhere in fields such as heat pipe networks, 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 elements.

[0003] In the prior art, when pressure gauges are used for testing, in order to protect the pressure gauges and prevent high-pressure flow from damaging the elastic elements inside the pressure gauges, most use buffer tubes to buffer the high-pressure flow and reduce the impact of high-pressure flow on the pressure gauges. However, using buffer tubes will occupy a lot of space and cannot be used in confined spaces. Utility Model Content

[0004] Therefore, the purpose of this utility model is to provide a pressure gauge protection connector to solve the technical problem that the buffer tube cannot protect the pressure gauge in a confined space.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a pressure gauge protection connector, comprising a protection connector, wherein a first buffer shell is fixedly connected to the bottom of the inner part of the protection connector, a second buffer shell is fixedly connected to the top of the inner part of the protection connector, the first buffer shell and the second buffer shell are connected through a buffer pipe, a pressure gauge is fixedly connected to the top of the protection connector, and the pressure gauge is connected to the second buffer shell.

[0006] By adopting the above technical solution, this utility model can initially buffer the measured high-pressure flow by designing a conical inclined surface at the bottom of the protective connector. Then, the high-pressure flow is buffered multiple times through the first buffer shell, buffer pipe and second buffer shell inside the protective connector, so that the impact force of the high-pressure flow can be greatly reduced. This ensures that the impact force of the high-pressure flow is within the bearing range of the elastic element inside the pressure gauge when it is measured. Through the above structure, the technical problem that the elastic element inside the pressure gauge may be damaged by the high impact force of the high-pressure flow is solved, thereby protecting the pressure gauge itself and extending the service life of the pressure gauge.

[0007] Furthermore, a first buffer cavity is formed inside the first buffer shell, and a second buffer cavity is formed inside the second buffer shell.

[0008] By adopting the above technical solution, the impact force of the high-pressure flow can be reduced when it enters the first and second buffer shells.

[0009] Furthermore, a retaining ring is fixedly connected to the bottom of the outer wall of the protective connector, and a connector is movably connected to the bottom of the protective connector.

[0010] By adopting the above technical solution, the protection connector can be connected to the connector, allowing high-pressure flow to enter the protection connector through the connector.

[0011] Furthermore, the connector has an internal thread, and the connector is connected to an external pipe through the internal thread.

[0012] By adopting the above technical solution, the protective connector and pressure gauge can be connected to the external pipeline through the connector, thereby detecting the flow rate and pressure in the pipeline.

[0013] Furthermore, the bottom of the protective connector has a cavity, and the cavity is tapered and inclined.

[0014] By adopting the above technical solution, the high-pressure flow can be reduced while the impact force of the high-pressure flow is reduced when it passes through the connector, and the high-pressure flow can also be throttled.

[0015] Furthermore, the buffer pipe is designed with a spiral upward, and the buffer pipe plays a role in reducing the impact force.

[0016] By adopting the above technical solution, the high-pressure flow can be made to flow upward along the buffer pipe during the measurement of high-pressure flow, while reducing the impact force of the high-pressure flow itself.

[0017] In summary, this utility model has the following beneficial effects: By designing a tapered slope at the bottom of the protective connector, this utility model can initially buffer the measured high-pressure flow. Then, through the first buffer shell, buffer pipe, and second buffer shell inside the protective connector, the high-pressure flow is buffered multiple times, which greatly reduces the impact force of the high-pressure flow. This ensures that the impact force of the high-pressure flow is within the bearing range of the elastic element inside the pressure gauge when it is measured. Through the above structure, the technical problem that the elastic element inside the pressure gauge may be damaged by the high impact force of the high-pressure flow is solved, thereby protecting the pressure gauge itself and extending the service life of the pressure gauge. Attached Figure Description

[0018] Figure 1 This is a main sectional view of some parts of this utility model;

[0019] Figure 2 This is a first-view structural schematic diagram of the present invention;

[0020] Figure 3 This is a structural schematic diagram of the present invention from a second perspective;

[0021] Figure 4 This is a cross-sectional view of some parts of this utility model;

[0022] Figure 5 This is a schematic diagram of the structure of a partial part of this utility model.

[0023] In the diagram: 1. Protective connector; 2. Pressure gauge; 3. Connector; 4. First buffer shell; 5. Buffer pipe; 6. Second buffer shell; 7. Retaining ring; 8. Cavity. Detailed Implementation

[0024] 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.

[0025] The embodiments of this utility model will be described below based on its overall structure.

[0026] A pressure gauge protection connector, such as Figure 1-5 As shown, it includes a protective connector 1, a first buffer shell 4 is fixedly connected to the bottom of the protective connector 1, a second buffer shell 6 is fixedly connected to the top of the protective connector 1, the first buffer shell 4 and the second buffer shell 6 are connected through a buffer pipe 5, and a pressure gauge 2 is fixedly connected to the top of the protective connector 1, and the pressure gauge 2 is connected to the second buffer shell 6.

[0027] When using, connect connector 3 to the external pipe that needs to be measured;

[0028] When pressure testing is performed, the high-pressure flow in the pipeline will be split into a stream after passing through connector 3 and enter the protective connector 1;

[0029] Since the bottom of the protective connector 1 has a cavity 8, and the cavity 8 is cone-shaped, it will have a preliminary buffering effect on the high pressure flow.

[0030] When the high-pressure flow reaches the first buffer shell 4 through the cavity inside the protective connector, the high-pressure flow will directly impact the inner wall of the first buffer shell 4, thereby reducing the impact force of the high-pressure flow.

[0031] Afterwards, the high-pressure flow will rise along the buffer pipe 5 and reach the second buffer shell 6. At this time, the high-pressure flow will impact the inner wall of the second buffer shell 6, thereby reducing the impact force of the high-pressure flow itself.

[0032] Then the high-pressure flow will enter the pressure gauge 2. Through the elastic element inside the pressure gauge 2, the pressure value of the current flow can be measured.

[0033] Please see Figure 1 , Figure 4 and Figure 5 The first buffer shell 4 has a first buffer cavity, and the second buffer shell 6 has a second buffer cavity. By setting the above structure, this utility model can reduce the impact force of the high pressure flow when it enters the first buffer shell 4 and the second buffer shell 6.

[0034] Please see Figure 1 , Figure 2 , Figure 3 and Figure 4 A retaining ring 7 is fixedly connected to the bottom of the outer wall of the protective connector 1, and a connector 3 is movably connected to the bottom of the protective connector 1. By setting the above structure, the protective connector 1 can be connected to the connector 3, so that the high-pressure flow can enter the protective connector 1 through the connector 3.

[0035] Please see Figure 1 and Figure 2 The connector 3 has an internal thread, which connects to the external pipeline. By setting the above structure, the protective connector 1 and the pressure gauge 2 can be connected to the external pipeline through the connector 3, thereby detecting the flow rate and pressure in the pipeline.

[0036] Please see Figure 1 and Figure 4 The bottom of the protective connector 1 is provided with a cavity 8, and the cavity 8 is set in a conical and inclined manner. By setting the above structure, this utility model can reduce the impact force of the high-pressure flow when the high-pressure flow passes through the connector 3, and also throttle the high-pressure flow.

[0037] Please see Figure 1 , Figure 4 and Figure 5 The buffer pipe 5 is designed with a spiral upward and plays the role of reducing the impact force. By setting the above structure, this utility model can reduce the impact force of the high pressure flow itself while allowing the high pressure flow to flow upward along the buffer pipe 5 during the measurement of high pressure flow.

[0038] The working principle of this utility model is as follows: When in use, the connector 3 is connected to the external pipe that needs to be measured;

[0039] When pressure testing is performed, the high-pressure flow in the pipeline will be split into a stream after passing through connector 3 and enter the protective connector 1;

[0040] Since the bottom of the protective connector 1 has a cavity 8, and the cavity 8 is cone-shaped, it will have a preliminary buffering effect on the high pressure flow.

[0041] When the high-pressure flow reaches the first buffer shell 4 through the cavity inside the protective connector, the high-pressure flow will directly impact the inner wall of the first buffer shell 4, thereby reducing the impact force of the high-pressure flow.

[0042] Afterwards, the high-pressure flow will rise along the buffer pipe 5 and reach the second buffer shell 6. At this time, the high-pressure flow will impact the inner wall of the second buffer shell 6, thereby reducing the impact force of the high-pressure flow itself.

[0043] Next, the high-pressure flow will enter the pressure gauge 2. Through the elastic element inside the pressure gauge 2, the pressure value of the current flow can be measured.

[0044] In summary, by providing a cavity (8) at the bottom of the protective connector 1, the high-pressure flow rate to be measured can be initially buffered. Then, the high-pressure flow rate is buffered multiple times by the first buffer shell 4, the buffer pipe 5 and the second buffer shell 6 inside the protective connector 1, so that the impact force of the high-pressure flow rate can be greatly reduced, thereby ensuring that the impact force of the high-pressure flow rate is within the bearing range of the elastic element inside the pressure gauge 2 when it is being measured.

[0045] The above structure solves the technical problem that the elastic element inside pressure gauge 2 may be damaged by the high impact force of high pressure flow, thus protecting pressure gauge 2 itself and extending its service life.

[0046] 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 gauge protection connector, comprising a protection connector (1), characterized in that: The protective connector (1) has a first buffer shell (4) fixedly connected to its bottom interior and a second buffer shell (6) fixedly connected to its top interior. The first buffer shell (4) and the second buffer shell (6) are connected through a buffer pipe (5). The protective connector (1) has a pressure gauge (2) fixedly connected to its top, and the pressure gauge (2) is connected to the second buffer shell (6).

2. The pressure gauge protection connector according to claim 1, characterized in that: The first buffer shell (4) has a first buffer cavity, and the second buffer shell (6) has a second buffer cavity.

3. The pressure gauge protection connector according to claim 1, characterized in that: The protective connector (1) has a retaining ring (7) fixedly connected to the bottom of its outer wall, and a connector (3) movably connected to the bottom of its bottom.

4. The pressure gauge protection connector according to claim 3, characterized in that: The connector (3) has an internal thread inside, and the connector (3) is connected to an external pipe through the internal thread.

5. The pressure gauge protection connector according to claim 1, characterized in that: The protective connector (1) has a cavity (8) at the bottom, and the cavity (8) is set in a conical and inclined manner.

6. The pressure gauge protection connector according to claim 1, characterized in that: The buffer pipe (5) is spiraled upward and serves to reduce the impact force.

Images