CN219455378U - a pressure gauge - Google Patents

Abstract

The utility model discloses a pressure gauge, which comprises a pressure gauge main body, a protection mechanism and a vertical pipe. , a valve and a threaded groove A are combined, the pressure inlet port of the pressure gauge main body is communicated with an air inlet pipe for air intake, and the pipe wall of the air inlet pipe is provided with a threaded groove A for connecting the inner threaded pipe, The groove wall of the threaded groove A is threadedly connected with the inner wall of the inner threaded pipe, and the other end of the inner threaded pipe is communicated with and installed with an openable valve. The pressure gauge can be protected by the protection mechanism to prevent the pressure gauge from being damaged by excessive pressure and causing the gas to be discharged after the gauge explodes.

Description

a pressure gauge

technical field

The utility model relates to the technical field of pressure gauges, in particular to a pressure gauge.

Background technique

A pressure gauge refers to an instrument that uses elastic elements as sensitive elements to measure and indicate pressure higher than the environment. It is widely used. It is used in almost all industrial processes and scientific research fields. It can be seen everywhere in the field of repair and maintenance factories and stores. The existing pressure gauges cannot protect the pressure gauge when the pressure is too high, so the pressure gauge is easy to burst and the detection pressure gas is discharged. For this purpose, we propose a pressure gauge.

Utility model content

The main purpose of the utility model is to provide a pressure gauge. The pressure gauge can be protected by the protection mechanism, so as to prevent the pressure gauge from being damaged by excessive pressure and cause the discharge of detection gas after the gauge explodes, which can effectively solve the problems in the background technology.

In order to achieve the above object, the technical scheme that the utility model takes is:

A pressure gauge, comprising a pressure gauge main body, a protective mechanism and a standpipe, the pressure inlet port of the pressure gauge main body is equipped with a protective mechanism, and the protective mechanism is composed of an air inlet pipe, an inner threaded pipe, a valve and a threaded groove A combination structure, the pressure inlet port of the main body of the pressure gauge is connected with an air inlet pipe for air intake, the pipe wall of the air inlet pipe is provided with a threaded groove A for connecting the inner threaded pipe, and the threaded groove A The groove wall of the inner threaded pipe is threadedly connected with the inner wall of the inner threaded pipe, and the other end of the inner threaded pipe is communicated with and installed with an openable valve.

Further, a connection mechanism is also included, and the pipe wall of the vertical pipe is connected with a connection mechanism to facilitate connection with the outside.

Further, the connection mechanism is composed of threaded groove B, threaded sleeve A, rubber gasket A, rubber gasket B and threaded sleeve B, and the pipe wall of the vertical pipe is provided with a screw for connecting the threaded sleeve A and the threaded sleeve. The threaded groove B of B, the vertical pipe runs through the rubber gasket A and the rubber gasket B respectively, the groove wall of the threaded groove B is threadedly connected with the threaded sleeve A and the threaded sleeve B respectively, through the threaded sleeve A and the threaded sleeve B makes the connection.

Further, the rubber gasket A and the rubber gasket B are located between the threaded sleeve A and the threaded sleeve B, and can squeeze and seal the rubber gasket A and the rubber gasket B.

Further, the air inlet port of the valve is installed in communication with one end of the vertical pipe, so as to facilitate the closing of the air inlet.

Compared with the prior art, the utility model has the following beneficial effects: when the personnel install the pressure gauge, after inserting the vertical pipe into the external connection, insert the rubber gasket B into the vertical pipe, so that the rubber gasket B is located After the inside of the joint is turned, the personnel twist the threaded sleeve B, so that the threaded sleeve B squeezes the rubber gasket B, so that the rubber gasket seals the inside of the joint, and the personnel twists the threaded sleeve A to make the threaded sleeve A against the rubber gasket. Gasket A is extruded so that the rubber gasket A seals the outside of the connection. When the main body of the pressure gauge detects the pressure, the gas enters the valve through the standpipe, and enters the inner threaded pipe through the valve, and the gas passes through the valve. The inner threaded pipe enters the intake pipe so that the main body of the pressure gauge can be detected. When the pressure is too high, the personnel will close the valve to protect the main body of the pressure gauge and avoid damage to the pressure gauge due to excessive pressure.

Description of drawings

Fig. 1 is a schematic diagram of the overall structure of a pressure gauge of the present invention.

Fig. 2 is a structural schematic diagram of a protection mechanism of a pressure gauge of the present invention.

In the figure: 1. Pressure gauge main body; 2. Protection mechanism; 201. Intake pipe; 202. Internal threaded pipe; 203. Valve; 204. Thread groove A; 3. Standpipe; 4. Connection mechanism; 401. Thread groove B; 402, thread sleeve A; 403, rubber gasket A; 404, rubber gasket B; 405, thread sleeve B.

Detailed ways

In order to make the technical means, creative features, goals and effects achieved by the utility model easy to understand, the utility model will be further elaborated below in conjunction with specific embodiments.

As shown in Figure 1-2, a pressure gauge includes a pressure gauge body 1, a protection mechanism 2 and a standpipe 3, the pressure inlet port of the pressure gauge body 1 is equipped with a protection mechanism 2, and the protection mechanism 2. It is composed of an air intake pipe 201, an internal threaded pipe 202, a valve 203 and a thread groove A204. The pressure inlet port of the pressure gauge main body 1 is connected with an air intake pipe 201 for air intake. The pipe of the air intake pipe 201 The wall is provided with a threaded groove A204 for connecting the inner threaded pipe 202, the groove wall of the threaded groove A204 is threadedly connected with the inner wall of the inner threaded pipe 202, and the other end of the inner threaded pipe 202 is A valve 203 that can be opened is installed in communication.

Wherein, a connecting mechanism 4 is also included, and the pipe wall of the standpipe 3 is connected with the connecting mechanism 4, which is convenient for connecting with the outside.

Wherein, the connecting mechanism 4 is composed of a thread groove B401, a threaded sleeve A402, a rubber gasket A403, a rubber gasket B404 and a threaded sleeve B405. The threaded groove B401 of the sleeve B405, the vertical pipe 3 runs through the rubber gasket A403 and the rubber gasket B404 respectively, the groove wall of the threaded groove B401 is threadedly connected with the threaded sleeve A402 and the threaded sleeve B405 respectively, and the rubber gasket The A403 and the rubber gasket B404 are located between the threaded sleeve A402 and the threaded sleeve B405, and can squeeze and seal the rubber gasket A403 and the rubber gasket B404.

Wherein, the air intake port of the valve 203 is installed in communication with one end of the standpipe 3, so as to facilitate the closing of the air intake.

It should be noted that the utility model is a pressure gauge. During work, when installing the pressure gauge, personnel insert the vertical pipe 3 into the external connection, and then insert the rubber gasket B404 into the vertical pipe 3, so that After the rubber gasket B404 is located inside the joint, the personnel twist the threaded sleeve B405, so that the threaded sleeve B405 squeezes the rubber gasket B404, so that the rubber gasket seals the inside of the joint, and the personnel twists the threaded sleeve A402 so that The threaded sleeve A402 squeezes the rubber gasket A403, so that the rubber gasket A403 seals the outside of the joint. When the pressure gauge body 1 detects the pressure, the gas enters the valve 203 through the standpipe 3 and passes through the valve 203. Into the inner threaded pipe 202, the gas enters the air inlet pipe 201 through the inner threaded pipe 202, so that the pressure gauge main body 1 is detected. When the pressure is too high, the personnel closes the valve 203, which can protect the pressure gauge main body 1. Avoid excessive pressure damage to the pressure gauge.

The basic principles and main features of the present utility model and the advantages of the present utility model have been shown and described above. Those skilled in the industry should understand that the utility model is not limited by the above-mentioned embodiments. The above-mentioned embodiments and descriptions only illustrate the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model The new model also has various changes and improvements, and these changes and improvements all fall within the scope of the claimed utility model. The scope of protection required by the utility model is defined by the appended claims and their equivalents.

Claims (1)

1. A pressure gauge, comprising a pressure gauge main body (1), characterized in that it also includes a protective mechanism (2) and a standpipe (3), and the pressure inlet port of the pressure gauge main body (1) is equipped with a protective mechanism (2), the protection mechanism (2) is composed of an air inlet pipe (201), an inner threaded pipe (202), a valve (203) and a thread groove A (204), and the pressure of the pressure gauge main body (1) The air intake port is communicated with an air intake pipe (201) for air intake, and the pipe wall of the air intake pipe (201) is provided with a threaded groove A (204) for connecting the inner threaded pipe (202), and the threaded groove The groove wall of A (204) is threadedly connected with the inner wall of the inner threaded pipe (202), and the other end of the inner threaded pipe (202) is communicated with and installed with an openable valve (203); Also includes a connecting mechanism (4), the pipe wall of the standpipe (3) is connected with a connecting mechanism (4); the connecting mechanism (4) is composed of thread groove B (401), threaded sleeve A (402), rubber Gasket A (403), rubber gasket B (404) and threaded sleeve B (405) are combined, and the pipe wall of the standpipe (3) is provided with a threaded sleeve A (402) and threaded sleeve B ( 405), the threaded groove B (401), the vertical pipe (3) runs through the rubber gasket A (403) and the rubber gasket B (404) respectively, and the groove walls of the threaded groove B (401) are respectively threaded There are threaded sleeve A (402) and threaded sleeve B (405); the rubber gasket A (403) and rubber gasket B (404) are located between the threaded sleeve A (402) and the threaded sleeve B (405); The inlet port of the valve (203) communicates with one end of the vertical pipe (3) and is installed.