Adjustable explosion-proof pressure gauge

Abstract

The utility model relates to the related technical field of pressure gauges, in particular to an adjustable explosion-proof pressure gauge which comprises a main gauge body and an adjusting mechanism, the adjusting mechanism is arranged on one side of the surface of the main gauge body, and an explosion-proof mechanism is arranged at one end of the main gauge body. Through the arrangement of an air inlet hole, a sliding groove, a first threaded groove, a limiting block, a threaded rod, a connecting block and a rotating valve, when pressure needs to be adjusted, the rotating valve is rotated clockwise, the rotating valve enables the threaded rod to rotate, the threaded rod slides through the first threaded groove, and then the threaded rod drives the connecting block to move; the connecting block enables the limiting block to move into the air inlet from the sliding groove, pressure adjustment is conducted according to the size of the area, covered by the limiting block, of the air inlet, when most of the limiting block is embedded into the air inlet, the pressure is reduced at the moment, and otherwise, the pressure is increased.

Description

Technical Field

[0001] The utility model relates to the technical field related to pressure gauges, in particular to an adjustable explosion-proof pressure gauge. Background Art

[0002] A pressure gauge is an instrument for measuring the pressure of liquid or gas. It determines the pressure level by measuring the force exerted by the medium on it. It is usually used to monitor pressure changes in pipelines, containers or systems to ensure the normal operation of industrial processes. However, with the rapid development of industry, the situation in existing machines is becoming more and more complicated, and a single-function pressure gauge can no longer adapt to the development of industry. Therefore, an adjustable explosion-proof pressure gauge is particularly needed.

[0003] However, the existing adjustable explosion-proof pressure gauge device does not have an adjustment function during normal use. When the pressure inside the machine is too high, the pressure gauge is damaged, which ultimately makes the staff unclear about the pressure situation inside the machine, increasing safety hazards. Utility Model Content

[0004] The purpose of the utility model is to provide an adjustable explosion-proof pressure gauge to solve the problem that the existing adjustable explosion-proof pressure gauge device proposed in the above background technology does not have an adjustment function during normal use. When the pressure in the machine body is too high, the pressure gauge is damaged, and finally the staff is unclear about the pressure situation in the machine body, which increases the safety hazard.

[0005] To achieve the above object, the utility model provides the following technical solution: an adjustable explosion-proof pressure gauge, comprising a main meter body and an adjustment mechanism, wherein the adjustment mechanism is arranged on one side of the surface of the main meter body, and the explosion-proof mechanism is arranged on one end of the main meter body;

[0006] The adjusting mechanism comprises an air inlet hole, a sliding groove, a first thread groove, a limit block, a threaded rod, a connecting block and a rotating valve; an air inlet hole is provided at one end of the main meter body, a sliding groove is provided inside the main meter body, a first thread groove is provided on one side of the surface of the main meter body, a limit block is provided inside the sliding groove, a threaded rod is connected to the internal thread of the first thread groove, one end of the limit block is fixedly connected to the connecting block, and one side of the threaded rod is fixedly connected to the rotating valve.

[0007] Preferably, the diameter of the limiting block matches the diameter of the air inlet, and the other end of the connecting block is fixedly connected with a threaded rod.

[0008] Preferably, the limit block forms a mutual sliding structure with the sliding groove through the threaded rod, and the threaded rod forms a mutual rotating structure with the main meter body through the first threaded groove.

[0009] Preferably, the explosion-proof mechanism includes a first fixed groove, an explosion-proof block, a fixed shaft, an installation groove, an explosion-proof glass and a second fixed groove, a first fixed groove is provided on one side of the surface of the main meter body, an explosion-proof block is threadedly connected to one side of the surface of the main meter body, a fixed shaft is embedded in the interior of the first fixed groove, an installation groove is provided in the interior of the explosion-proof block, an explosion-proof glass is embedded and installed in the interior of the installation groove, and a second fixed groove is provided on one side of the surface of the explosion-proof glass.

[0010] Preferably, the other end of the fixed shaft is embedded in the second fixed groove, and one side of the explosion-proof glass is in contact with the main body.

[0011] Compared with the prior art, the beneficial effect of the utility model is that: the pressure gauge device based on the adjustable explosion-proof structure, through the setting of the air inlet hole, the sliding groove, the first threaded groove, the limit block, the threaded rod, the connecting block and the rotating valve, when the pressure in the machine body exceeds the upper limit value of the pressure gauge, if it is not restricted, the excessive pressure will damage the pressure gauge, and it is necessary to use an adjusting mechanism to adjust the air intake volume in the air inlet hole, thereby effectively protecting the pressure gauge and facilitating the inspection and replacement of the pressure gauge in the next step. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the cross-sectional structure of the side appearance of the utility model;

[0013] Figure 2 This is a schematic diagram of the partial cross-sectional exploded structure of the adjustment mechanism of the utility model;

[0014] Figure 3 This is a schematic diagram of the partial sectional exploded structure of the explosion-proof mechanism of the utility model;

[0015] Figure 4 For this utility model Figure 2 The enlarged structural diagram at A in the middle;

[0016] Figure 5 For this utility model Figure 3 Enlarged structural diagram at B in the middle.

[0017] In the figure: 1. main meter body; 2. adjusting mechanism; 201. air inlet; 202. sliding groove; 203. first threaded groove; 204. limiting block; 205. threaded rod; 206. connecting block; 207. rotating valve; 3. explosion-proof mechanism; 301. first fixed groove; 302. explosion-proof block; 303. fixed shaft; 304. mounting groove; 305. explosion-proof glass; 306. second fixed groove. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figure 1-5 The utility model provides a technical solution: an adjustable explosion-proof pressure gauge, comprising a main meter body 1 and an adjusting mechanism 2, wherein the adjusting mechanism 2 is arranged on one side of the surface of the main meter body 1, and an explosion-proof mechanism 3 is arranged on one end of the main meter body 1;

[0020] The regulating mechanism 2 includes an air inlet 201, a sliding groove 202, a first thread groove 203, a stopper 204, a threaded rod 205, a connecting block 206 and a rotating valve 207. An air inlet 201 is provided at one end of the main meter body 1, a sliding groove 202 is provided inside the main meter body 1, a first thread groove 203 is provided on one side of the surface of the main meter body 1, a stopper 204 is provided inside the sliding groove 202, a threaded rod 205 is connected to the inner thread of the first thread groove 203, one end of the stopper 204 is fixedly connected to the connecting block 206, one side of the threaded rod 205 is fixedly connected to the rotating valve 207, and the air inlet 201, the sliding groove 202, the first thread groove 203, the limit block 204, the threaded rod 205, the connecting block 206 and the rotating valve 207 are arranged. When it is necessary to adjust the pressure, the rotating valve 207 is rotated clockwise. The rotating valve 207 causes the threaded rod 205 to rotate, and the threaded rod 205 slides through the first thread groove 203, so that the threaded rod 205 drives the connecting block 206 to move, and the connecting block 206 enables the limit block 204 to move from the sliding groove 202 to the air inlet 201. The pressure is adjusted according to the area of ​​the air inlet 201 covered by the limit block 204. When most of the limit block 204 is embedded in the air inlet 201, the pressure is reduced at this time, and the pressure rises.

[0021] Furthermore, the diameter of the limit block 204 matches the diameter of the air inlet hole 201, and the other end of the connecting block 206 is fixedly connected to a threaded rod 205. Through the setting of the limit block 204, the limit block 204 slides in the air inlet hole 201 and the sliding groove 202, so that the airflow size in the air inlet hole 201 can be limited, thereby controlling the pressure of the pressure gauge.

[0022] Furthermore, the limit block 204 forms a mutual sliding structure with the sliding groove 202 through the threaded rod 205, and the threaded rod 205 forms a mutual rotation structure with the main meter body 1 through the first threaded groove 203. Through the setting of the first threaded groove 203 and the threaded rod 205, when the pressure in the air inlet 201 needs to be reduced, the clockwise rotating threaded rod 205 eventually drives the limit block 204 to move toward the air inlet 201. When the pressure needs to be increased, the counterclockwise rotating threaded rod 205 causes the limit block 204 to move toward the sliding groove 202.

[0023] Further, the explosion-proof mechanism 3 includes a first fixed groove 301, an explosion-proof block 302, a fixed shaft 303, a mounting groove 304, an explosion-proof glass 305, and a second fixed groove 306. The first fixed groove 301 is provided on one side of the surface of the main meter body 1, and the explosion-proof block 302 is threadedly connected to one side of the surface of the main meter body 1. The fixed shaft 303 is embedded in the first fixed groove 301, and the explosion-proof block 302 is provided with a mounting groove 304. The explosion-proof glass 305 is embedded and installed in the mounting groove 304. The second fixed groove 306 is provided on one side of the surface of the explosion-proof glass 305. The setting of the fixed groove 301, explosion-proof block 302, fixed shaft 303, installation groove 304, explosion-proof glass 305 and second fixed groove 306, when the pressure gauge needs to be explosion-proof, first install the fixed shaft 303 into the first fixed groove 301, then put the explosion-proof glass 305 into the installation groove 304, and finally the explosion-proof block 302 can be threadedly connected to the main meter body 1. When the other end of the fixed shaft 303 is completely embedded in the second fixed groove 306, the threaded connection of the explosion-proof block 302 is completed, that is, the installation of the explosion-proof mechanism 3 is completed, and then the explosion-proof treatment can be carried out.

[0024] Furthermore, the other end of the fixed shaft 303 is embedded in the second fixed groove 306, and one side of the explosion-proof glass 305 is in contact with the main watch body 1. Through the setting of the fixed shaft 303, the fixed shaft 303 can fix the explosion-proof glass 305 on the explosion-proof block 302, thereby preventing the explosion-proof glass 305 from escaping from the installation groove 304, thereby causing damage to parts such as the pointer on the main watch body 1.

[0025] Working principle: When the pressure needs to be adjusted, the valve 207 is rotated clockwise, and the valve 207 rotates to rotate the threaded rod 205, and the threaded rod 205 slides through the first thread groove 203, so that the threaded rod 205 drives the connecting block 206 to move, and the connecting block 206 enables the limit block 204 to move from the sliding groove 202 to the air inlet 201. The pressure is adjusted according to the area of ​​the air inlet 201 covered by the limit block 204. When most of the limit block 204 is embedded in the air inlet 201, the pressure decreases, otherwise the pressure increases. When the pressure gauge needs to be explosion-proof, first install the fixed shaft 303 into the first fixed groove 301, then put the explosion-proof glass 305 into the installation groove 304, and finally the explosion-proof block 302 can be threadedly connected to the main meter body 1. When the other end of the fixed shaft 303 is completely embedded in the second fixed groove 306, the threaded connection of the explosion-proof block 302 is completed, that is, the installation of the explosion-proof mechanism 3 is completed, and then the explosion-proof treatment can be carried out.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An adjustable explosion-proof pressure gauge, comprising a main gauge body (1) and an adjustment mechanism (2), characterized in that: An adjustment mechanism (2) is provided on one side of the surface of the main meter body (1), and an explosion-proof mechanism (3) is provided on one end of the main meter body (1); The regulating mechanism (2) comprises an air inlet hole (201), a sliding groove (202), a first thread groove (203), a limit block (204), a threaded rod (205), a connecting block (206) and a rotating valve (207); an air inlet hole (201) is provided at one end of the main meter body (1); a sliding groove (202) is provided inside the main meter body (1); a first thread groove (203) is provided on one side of the surface of the main meter body (1); a limit block (204) is provided inside the sliding groove (202); a threaded rod (205) is connected to the inner thread of the first thread groove (203); one end of the limit block (204) is fixedly connected to the connecting block (206); and one side of the threaded rod (205) is fixedly connected to the rotating valve (207).

2. The adjustable explosion-proof pressure gauge according to claim 1, characterized in that: The diameter of the limiting block (204) matches the diameter of the air inlet hole (201), and the other end of the connecting block (206) is fixedly connected to a threaded rod (205).

3. The adjustable explosion-proof pressure gauge according to claim 1, characterized in that: The limit block (204) forms a mutually sliding structure with the sliding groove (202) through the threaded rod (205), and the threaded rod (205) forms a mutually rotating structure with the main meter body (1) through the first threaded groove (203).

4. The adjustable explosion-proof pressure gauge according to claim 1, characterized in that: The explosion-proof mechanism (3) comprises a first fixing groove (301), an explosion-proof block (302), a fixing shaft (303), a mounting groove (304), an explosion-proof glass (305) and a second fixing groove (306); the first fixing groove (301) is provided on one side of the surface of the main meter body (1); the explosion-proof block (302) is threadedly connected to one side of the surface of the main meter body (1); the fixing shaft (303) is embedded in the interior of the first fixing groove (301); the mounting groove (304) is provided on the interior of the explosion-proof block (302); the explosion-proof glass (305) is embedded and installed in the interior of the mounting groove (304); and the second fixing groove (306) is provided on one side of the surface of the explosion-proof glass (305).

5. The adjustable explosion-proof pressure gauge according to claim 4, characterized in that: The other end of the fixed shaft (303) is embedded in the second fixed groove (306), and one side of the explosion-proof glass (305) is in contact with the main watch body (1).

Images