Fluid medium pressure gauge with compression-resistant structure

Abstract

The utility model provides a fluid medium pressure gauge with a compression-resistant structure, which comprises an outer shell, diaphragm pieces are arranged on two sides in the outer shell, a buffer seat is arranged on one side in the outer shell, and a gauge body inner joint is arranged on the other side of the outer shell; the detachable connecting seat is arranged, when small pipelines with different inner diameters need to be installed, the connecting seat can be conveniently replaced, the matched connectors can be conveniently switched to be connected with the small pipelines, the meter body inner connector is connected with the pressure meter, the diaphragm piece is arranged in the outer shell, and therefore a fluid cavity and an air cavity are formed. Liquid entering from the small pipeline firstly enters through the liquid inlet pipe body, then water pressure is dispersed and decompressed through the buffer seat, so that the liquid entering the fluid cavity is decompressed, then the decompressed liquid extrudes the diaphragm piece and the air cavity towards the outer side, and after air enters the air cavity, the pressure of the liquid is balanced; after the outer shell is connected through the meter body inner connector, the measured pressure does not change suddenly, and the pressure resistance is high.

Description

Technical Field

[0001] The utility model belongs to the technical field of pressure gauges and relates to a fluid medium pressure gauge with a pressure-resistant structure. Background Art

[0002] Most of the equipment in the current electronics industry uses compressed air and nitrogen, and some clean processing equipment also uses pure water. Moreover, these devices are automatically controlled and automatically produced. Their demand for compressed air, nitrogen, and pure water is sometimes intermittent, with more than 5 openings and closings per minute. The opening and closing is achieved through solenoid valves, which open and close according to the change of current. However, the opening and closing of the solenoid valves belong to the full stroke, with only two states: fully open or closed, and the action is rapid. This will cause the pressure fluid entering the equipment (the compressed air, nitrogen, pure water, etc. mentioned above) to change greatly and change quickly. Of course, the pressure change of the main network is minimal. This rapidly changing pressure often damages and bends the needle of the directly installed pressure gauge, making it unable to display the pressure normally, affecting its use.

[0003] Common pressure gauge shock absorbers, such as pressure gauge bender, cannot be installed in some places due to their large size and long length. For example, behind the equipment and under the elevated floor, the space is limited and the gauge bender cannot be installed. In addition, due to the shape, it is not beautiful when viewed directly. Therefore, a pressure-resistant shock absorber structure is needed that can effectively buffer the pressure generated by the inflow and outflow of pressure fluid. Utility Model Content

[0004] The purpose of the utility model is to provide a fluid medium pressure gauge with a pressure-resistant structure to solve the problems raised in the above background technology.

[0005] The purpose of the utility model can be achieved through the following technical solutions:

[0006] A fluid medium pressure gauge with a pressure-resistant structure comprises an outer shell, a diaphragm, an air cavity, a rubber diaphragm, an inner joint of a meter body and a buffer seat, wherein a mounting groove is provided at one end of the outer shell, a connecting seat is installed on the internal thread of the mounting groove, diaphragms are provided on both sides of the inner part of the outer shell, the interior of the outer shell is divided into a fluid cavity and two air cavities by two diaphragms, a buffer seat is provided on one side of the inner part of the outer shell, a inner joint of the meter body is provided on the other side of the outer shell, and the inner joint of the meter body and the buffer seat are both provided inside the fluid cavity.

[0007] In the above-mentioned fluid medium pressure gauge with a pressure-resistant structure, a connecting head is fixedly provided at one end of the connecting seat, and a connecting thread is provided on the outer wall surface of the connecting head.

[0008] In the above-mentioned fluid medium pressure gauge with a pressure-resistant structure, a liquid inlet pipe body is arranged inside the connecting seat, and a sealing gasket is arranged at the connection between the connecting seat and the mounting groove.

[0009] In the above-mentioned fluid medium pressure gauge with a pressure-resistant structure, the diaphragm member is composed of two rubber diaphragms, and a plurality of rubber struts are arranged between the two rubber diaphragms, the middle position of the rubber diaphragm is connected to the middle of the inner wall surface of the outer shell through an airbag support member, a valve core 1 is arranged on the top of the airbag support member, and a valve core 2 connected to the air cavity is arranged on the top side of the outer shell.

[0010] In the above-mentioned fluid medium pressure gauge with a pressure-resistant structure, a flow guide channel is provided inside the buffer seat, three ceramic inner blocks are arranged at the front end of the flow guide channel, and a plurality of holes are provided on the ceramic inner blocks.

[0011] In the above-mentioned fluid medium pressure gauge with a pressure-resistant structure, a plurality of buffer flow channels are arranged at the inner rear end of the guide channel, an insertion end groove is opened at the front end of the buffer seat, and after the connecting seat is connected, one end of the liquid inlet tube body is inserted into the interior of the insertion end groove.

[0012] Compared with the prior art, the advantages of the fluid medium pressure gauge with a pressure-resistant structure of the utility model are:

[0013] The present application provides a detachable connecting seat at the front end of the outer shell. When small pipes with different inner diameters need to be installed, the connecting seat can be conveniently replaced to switch the matching connecting head to connect with the small pipe, and the joint in the meter body is connected to the pressure gauge. A diaphragm is provided inside the outer shell to form a fluid cavity and an air cavity. The liquid entering from the small pipe first enters through the liquid inlet pipe body, and then the water pressure is dispersed and reduced by the buffer seat, so that the liquid entering the fluid cavity is reduced in pressure, and then the decompressed liquid squeezes the diaphragm and the air cavity toward the outside. After the air cavity is filled with air, the liquid pressure reaches equilibrium. Therefore, after the outer shell is connected through the joint in the meter body, the measured pressure will not suddenly change, and the pressure resistance is strong. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The utility model is a structural schematic diagram of a fluid medium pressure gauge with a pressure-resistant structure.

[0015] Figure 2 The utility model is a schematic diagram of the installation groove structure of a fluid medium pressure gauge with a pressure-resistant structure.

[0016] Figure 3 The utility model is a schematic diagram of a buffer seat structure of a fluid medium pressure gauge with a pressure-resistant structure.

[0017] In the figure, 1. outer shell; 2. diaphragm; 3. fluid cavity; 4. air cavity; 5. rubber diaphragm; 6. rubber pillar; 7. inner joint of the meter body; 8. air bag support; 9. connecting seat; 10. connecting head; 11. liquid inlet pipe body; 12. mounting groove; 13. buffer seat; 14. guide channel; 15. ceramic inner block; 16. buffer flow channel; 17. insertion end groove. DETAILED DESCRIPTION

[0018] The following are specific embodiments of the present invention and the accompanying drawings to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

[0019] A fluid medium pressure gauge with a pressure-resistant structure comprises an outer shell 1, a diaphragm 2, an air cavity 4, a rubber diaphragm 5, an inner joint 7 and a buffer seat 13. An installation groove 12 is provided at one end of the outer shell 1, and a connecting seat 9 is installed on the internal thread of the installation groove 12. Diaphragm components 2 are arranged on both sides of the inner part of the outer shell 1. The interior of the outer shell 1 is divided into a fluid cavity 3 and two air cavities 4 by the two diaphragm components 2. A buffer seat 13 is arranged on one side of the outer shell 1, and a inner joint 7 is arranged on the other side of the outer shell 1. The inner joint 7 and the buffer seat 13 are both arranged inside the fluid cavity 3.

[0020] like Figure 1 , Figure 2 and Figure 3 As shown, the utility model is a fluid medium pressure gauge with a pressure-resistant structure. Specifically, a connecting head 10 is fixedly provided at one end of a connecting seat 9, and a connecting thread is provided on the outer wall surface of the connecting head 10.

[0021] like Figure 1 , Figure 2 and Figure 3 As shown, the utility model is a fluid medium pressure gauge with a pressure-resistant structure. Specifically, a liquid inlet pipe body 11 is arranged inside the connecting seat 9, and a sealing gasket is arranged at the connection between the connecting seat 9 and the mounting groove 12.

[0022] like Figure 1 , Figure 2 and Figure 3 As shown, the utility model is a fluid medium pressure gauge with a pressure-resistant structure. Specifically, the diaphragm 2 is composed of two rubber diaphragms 5, and a plurality of rubber struts 6 are arranged between the two rubber diaphragms 5. The middle position of the rubber diaphragm 5 is connected to the middle of the inner wall surface of the outer shell 1 through the airbag support 8. The top of the airbag support 8 is provided with a valve core 1, and the top side of the outer shell 1 is provided with a valve core 2 connected with the air cavity 4.

[0023] like Figure 1 , Figure 2 and Figure 3As shown, the utility model is a fluid medium pressure gauge with a pressure-resistant structure. Specifically, a flow guide channel 14 is opened inside the buffer seat 13, and three ceramic inner blocks 15 are arranged at the front end of the inner part of the flow guide channel 14. The ceramic inner blocks 15 are opened with multiple holes.

[0024] like Figure 1 , Figure 2 and Figure 3 As shown, the utility model is a fluid medium pressure gauge with a pressure-resistant structure. Specifically, a plurality of buffer flow channels 16 are arranged at the inner rear end of the guide channel 14, and an insertion end groove 17 is opened at the front end of the buffer seat 13. After the connecting seat 9 is connected, one end of the liquid inlet tube body 11 is inserted into the interior of the insertion end groove 17.

[0025] The utility model discloses a fluid medium pressure gauge with a pressure-resistant structure. A detachable connecting seat 9 is arranged at the front end of an outer shell 1. When small pipes with different inner diameters need to be installed, the connecting seat 9 can be conveniently replaced, thereby switching a matching connecting head 10 to connect with the small pipe. A joint 7 inside the meter body is connected to the joint end of the pressure gauge through a thread. Two diaphragm members 2 are arranged inside the outer shell 1 to form a fluid cavity 3 and an air cavity 4. The liquid entering from the small pipe first enters through a liquid inlet pipe body 11, and then the water pressure is dispersed and reduced in pressure through a buffer seat 13, so that the liquid entering the fluid cavity 3 is reduced in pressure, and then the decompressed liquid squeezes the diaphragm member 2 and the air cavity 4 toward the outside. After the air cavity 4 is aired, the liquid pressure reaches equilibrium. Therefore, after the outer shell 1 is connected through the joint 7 inside the meter body, the measured pressure will not suddenly change, and the pressure resistance is strong.

[0026] The contents not described in detail in this specification belong to the prior art known to the professional and technical personnel in this field. The specific embodiments described in this article are only used to illustrate the spirit of the utility model. The technicians in the technical field of the utility model can make various modifications or supplements to the specific embodiments described or replace them in a similar way, but they will not deviate from the spirit of the utility model or exceed the scope defined by the attached claims.

Claims

1. A fluid medium pressure gauge with a pressure-resistant structure, comprising an outer shell (1), a diaphragm (2), an air cavity (4), a rubber diaphragm (5), a joint (7) inside the gauge body and a buffer seat (13), characterized in that: One end of the outer shell (1) is provided with a mounting groove (12), the internal thread of the mounting groove (12) is provided with a connecting seat (9), both sides of the inner side of the outer shell (1) are provided with diaphragm components (2), the inner side of the outer shell (1) is divided into a fluid cavity (3) and two air cavities (4) by the two diaphragm components (2), a buffer seat (13) is provided on one side of the inner side of the outer shell (1), and a meter body internal joint (7) is provided on the other side of the outer shell (1), and the meter body internal joint (7) and the buffer seat (13) are both arranged inside the fluid cavity (3).

2. A fluid medium pressure gauge with a pressure-resistant structure according to claim 1, characterized in that: A connecting head (10) is fixedly provided at one end of the connecting seat (9), and a connecting thread is provided on the outer wall surface of the connecting head (10).

3. A fluid medium pressure gauge with a pressure-resistant structure according to claim 2, characterized in that: A liquid inlet pipe body (11) is arranged inside the connecting seat (9), and a sealing gasket is arranged at the connection between the connecting seat (9) and the mounting groove (12).

4. A fluid medium pressure gauge with a pressure-resistant structure according to claim 1, characterized in that: The diaphragm member (2) is composed of two rubber diaphragms (5), and a plurality of rubber pillars (6) are arranged between the two rubber diaphragms (5). The middle position of the rubber diaphragm (5) is connected to the middle of the inner wall surface of the outer shell (1) through an airbag support member (8). The top of the airbag support member (8) is provided with a valve core 1, and the top side of the outer shell (1) is provided with a valve core 2 connected to the air cavity (4).

5. The fluid medium pressure gauge with a pressure-resistant structure according to claim 3, characterized in that: A flow guide channel (14) is provided inside the buffer seat (13), three ceramic inner blocks (15) are arranged at the front end of the flow guide channel (14), and a plurality of holes are provided on the ceramic inner blocks (15).

6. A fluid medium pressure gauge with a pressure-resistant structure according to claim 5, characterized in that: A plurality of buffer flow channels (16) are arranged at the rear end of the guide channel (14), an insertion end groove (17) is provided at the front end of the buffer seat (13), and after the connection seat (9) is connected, one end of the liquid inlet pipe body (11) is inserted into the insertion end groove (17).

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