CN219014010U - Air inlet protection device of pressure reducer - Google Patents
Air inlet protection device of pressure reducer Download PDFInfo
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- CN219014010U CN219014010U CN202122021538.9U CN202122021538U CN219014010U CN 219014010 U CN219014010 U CN 219014010U CN 202122021538 U CN202122021538 U CN 202122021538U CN 219014010 U CN219014010 U CN 219014010U
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- pressure
- pressure release
- protection device
- air inlet
- connecting pipe
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/10—Internal combustion engine [ICE] based vehicles
- Y02T10/30—Use of alternative fuels, e.g. biofuels
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Abstract
The utility model discloses an air inlet protection device of a pressure reducer, which is characterized by comprising a body, wherein one side of the body is provided with an air inlet joint, and the other side is provided with a flowmeter and an air delivery port; the pressure gauge is connected with the top of body, a serial communication port, be provided with the protection device that admits air between body and the air inlet joint, the protection device that admits air includes the connecting pipe, the connecting pipe is used for connecting air inlet joint and body, be provided with the relief pipe on the connecting pipe, be provided with the pressure release chamber that is echelonment in the relief pipe, the one end that the pressure release chamber is close to the connecting pipe is provided with the opening, sliding connection has the pressure release pole in the pressure release chamber, the pressure release pole is provided with the end cap near open-ended one end, the other end passes the pressure release pipe and exposes in the external world, still be provided with the spring that cup joints with the pressure release pole in the pressure release chamber, through the setting of the protection device that admits air, when the input gas pressure is too big, the pressure release chamber is opened, gas is discharged from the pressure release chamber, make gas can not get into this in, thereby can play the guard action to the pressure reducer body.
Description
Technical Field
The utility model relates to the technical field of pressure reducers, in particular to an air inlet protection device of a pressure reducer.
Background
The pressure reducer is a pressure reducer which ensures that the outlet pressure of bottled gas is always kept stable, and because the pressure in the gas cylinder is higher, the pressure required by gas welding and gas cutting use points is smaller, the pressure reducer is needed to reduce the gas stored in the gas cylinder with higher pressure into low-pressure gas, but the pressure reducer which is common in the market at present is basically ten megapascals, fifteen megapascals and rarely twenty megapascals, and the gas cylinder is quite rare due to the development of technology, so that the gas cylinder with thirty megapascals and twenty megapascals is matched with the pressure reducer with ten megapascals and fifteen megapascals by unknown staff, thereby leading to the explosion of the barometer and the pressure reducer due to the overlarge internal pressure and threatening the staff.
Disclosure of Invention
In order to solve the problems, the utility model provides the air inlet protection device of the pressure reducer, which is used for releasing air when the output air pressure of the air bottle is too large and the bearing range of the pressure reducer is far exceeded, so that the high-pressure air is prevented from entering the pressure reducer, the pressure reducer is prevented from being damaged, and the pressure reducer is prevented from bursting.
In order to achieve the above purpose, the utility model adopts the technical scheme that: an air inlet protection device of a pressure reducer comprises a body, wherein an air inlet connector is arranged on one side of the body, and a flowmeter and an air delivery port are arranged on the other side of the body; the pressure gauge is characterized in that an air inlet protection device is arranged between the body and the air inlet connector, the air inlet protection device comprises a connecting pipe, the connecting pipe is used for connecting the air inlet connector and the body, a pressure relief pipe is arranged on the connecting pipe, a stepped pressure relief cavity is arranged in the pressure relief pipe, an opening is formed in one end, close to the connecting pipe, of the pressure relief cavity and used for communicating the pressure relief cavity with the connecting pipe, a pressure relief rod is connected in the pressure relief cavity in a sliding mode, a plug is arranged at one end, close to the opening, of the pressure relief rod, the other end penetrates through the pressure relief pipe and is exposed to the outside, and a spring sleeved with the pressure relief rod is further arranged in the pressure relief cavity.
The utility model is further characterized in that the pressure release rod is further provided with a piston, and the piston is arranged at one side of the plug far away from the opening.
The pressure release device is further characterized in that a fixed block is arranged at one end, far away from the connecting pipe, of the pressure release cavity, the fixed block is sleeved with the pressure release rod, one end of the spring is fixedly connected with the fixed block, and the other end of the spring is in contact with the piston.
The utility model is further provided that one end of the pressure release rod, which is positioned outside, is fixedly provided with a sealing block.
The utility model is further arranged that the connecting pipe is in threaded connection with the body and the air inlet joint.
In summary, the utility model has the following beneficial effects:
1. through setting up the protection device that admits air between body and air inlet connector, when the gas pressure of input is higher than the rated threshold value that the protection device that admits air set for the protection device that admits air can be opened for the input gas is discharged to the external world before getting into inside the body, thereby avoids gas to get into inside the pressure reducer body, causes the impact to damage under the inside components and parts, and avoids inside pressure too big to lead to pressure reducer, barometer to burst and causes danger to the staff.
2. The air inlet connector is connected to the body through the connecting pipe, and the connecting modes are in threaded connection, so that when the pressure reducer is damaged, the connecting pipe can be detached to be installed on other pressure reducers, the air inlet protection device can be used repeatedly, the utilization rate of the air inlet protection device is improved, and the cost is reduced.
Drawings
Fig. 1 is a front structural sectional view of the present embodiment;
fig. 2 is a sectional view of the intake air protecting device of the present embodiment.
Reference numerals: 1-a body; 2-an air inlet joint; 3-a flow meter; 4-a pressure gauge; 5-an air intake protection device; 501-connecting pipes; 503-a pressure relief tube; 504-a pressure relief chamber; 505-pressure release lever; 506-plugs; 507-a spring; 508-fixing blocks; 509-a piston; 510-a sealing block; 6-gas delivery port.
Detailed Description
The present utility model will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1-2, the embodiment discloses an air inlet protection device of a pressure reducer, which comprises a body 1, wherein one side of the body 1 is provided with an air inlet joint 2, the other side is provided with a flowmeter 3, and an air inlet 6 positioned on the body 1 is also arranged below the flowmeter 3; the pressure gauge 4 is connected to the top of the body 1, and is characterized in that an air inlet protection device 5 is arranged between the body 1 and the air inlet connector 2, the air inlet protection device 5 comprises a connecting pipe 501, the connecting pipe 501 is used for connecting the air inlet connector 2 and the body 1, a pressure release pipe 503 is arranged on the connecting pipe 501, a step-shaped pressure release cavity 504 is arranged in the pressure release pipe 503, an opening is formed in one end, close to the connecting pipe 501, of the pressure release cavity 504 and is used for communicating the pressure release cavity 504 with the connecting pipe 501, a pressure release rod 505 is connected in the pressure release cavity 504 in a sliding manner, a plug 506 is arranged at one end, close to the opening, of the pressure release rod 505, the other end penetrates through the pressure release pipe 503 and is exposed to the outside, and a spring 507 sleeved with the pressure release rod 505 is further arranged in the pressure release cavity 504.
In this embodiment, the pressure release rod 505 is further provided with a piston 509, and the piston 509 is disposed on a side of the plug 506 away from the opening.
In this embodiment, a fixed block 508 is disposed at one end of the pressure release chamber 504 away from the connecting pipe 501, the fixed block 508 is sleeved with the pressure release rod 505, one end of the spring 507 is fixedly connected with the fixed block 508, and the other end of the spring is in contact with the piston 509.
In this embodiment, a sealing block 510 is fixed at one end of the pressure release rod 505 located outside.
In this embodiment, the connection pipe 501 is connected to the body 1 and the air inlet connector 2 by threads.
Working principle: connecting the gas transmission end of the gas cylinder with the gas inlet joint 2, then opening a valve of the gas cylinder to enable high-pressure gas to enter the body 1 through the connecting pipe 501, and then depressurizing the gas in the body 1 through an internal structure and then outputting the gas from the gas transmission port 6 at the lower end of the flowmeter 3; the pressure gauge 4 can display the pressure of the gas in the body 1, so that the adjustment of workers is facilitated, and the flow meter 3 can display the flow of the gas, so that the control of the workers is facilitated; when the pressure of the input high-pressure gas is overlarge, when the input gas passes through the connecting pipe 501, the input gas enters the pressure release cavity 504 through the opening, then the gas pressure exceeds the acting force of the spring 509, the piston 509 is pushed to move upwards, as the pressure release cavity 504 is arranged in a step shape, one end close to the opening is matched with the piston 509, sealing can be realized, and the inner diameter of the pressure release cavity 504 at one end far away from the opening is larger than that of the piston 509, so that the gas can push the piston 509 to one end far away from the opening, and the gas is discharged to the outside through a clearance between the pressure release rod 505 and the fixed block 508 and a clearance between the pressure release rod 505 and the pressure release pipe 503, so that the input gas can not enter the body 1, the high-pressure gas is prevented from impacting and damaging internal components, and the pressure gauge 4 burst caused by overlarge internal gas pressure is avoided; the plug 506 is in clearance fit with the opening, so that gas can enter the pressure release cavity 504, meanwhile, the buffer effect is achieved on the input gas, the impact piston 509 is prevented from being excessively impacted by impact force, the gap between the pressure release rod 505 and the pressure release pipe 503 can be sealed by the arrangement of the sealing block 510, the entering of external sundries is avoided, abrasion is reduced, and the service life of the device is prolonged.
The above embodiments are only preferred embodiments of the present utility model, and are not intended to limit the present utility model, and any modifications, equivalent substitutions, improvements, etc. within the design concept of the present utility model should be included in the scope of the present utility model.
Claims (5)
1. An air inlet protection device of a pressure reducer comprises a body (1), wherein an air inlet joint (2) is arranged on one side of the body (1), and a flowmeter (3) and an air delivery port (6) are arranged on the other side of the body; the novel air intake device is characterized in that an air intake protection device (5) is arranged between the body (1) and the air intake connector (2), the air intake protection device (5) comprises a connecting pipe (501), the connecting pipe (501) is used for connecting the air intake connector (2) and the body (1), a pressure relief pipe (503) is arranged on the connecting pipe (501), a stepped pressure relief cavity (504) is arranged in the pressure relief pipe (503), an opening is formed in one end, close to the connecting pipe (501), of the pressure relief cavity (504) and used for communicating the pressure relief cavity (504) with the connecting pipe (501), a pressure relief rod (505) is connected in the pressure relief cavity (504) in a sliding mode, a plug (506) is arranged at one end, close to the opening, of the pressure relief rod (505), the other end of the pressure relief rod penetrates through the pressure relief pipe (503) and is exposed to the outside, and a spring (507) sleeved with the pressure relief rod (505) is further arranged in the pressure relief cavity (504).
2. The air intake protection device of the pressure reducer according to claim 1, wherein a piston (509) is further arranged on the pressure release rod (505), and the piston (509) is arranged on one side of the plug (506) away from the opening.
3. The air inlet protection device of the pressure reducer according to claim 2, wherein a fixed block (508) is arranged at one end of the pressure release cavity (504) far away from the connecting pipe (501), the fixed block (508) is sleeved with the pressure release rod (505), one end of the spring (507) is fixedly connected with the fixed block (508), and the other end of the spring is in contact with the piston (509).
4. The air intake protection device of the pressure reducer according to claim 1, wherein a sealing block (510) is fixed at one end of the pressure release rod (505) located outside.
5. The air inlet protection device of the pressure reducer according to claim 1, wherein the connecting pipe (501) is connected with the body (1) and the air inlet joint (2) by threads.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122021538.9U CN219014010U (en) | 2021-08-26 | 2021-08-26 | Air inlet protection device of pressure reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122021538.9U CN219014010U (en) | 2021-08-26 | 2021-08-26 | Air inlet protection device of pressure reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219014010U true CN219014010U (en) | 2023-05-12 |
Family
ID=86234272
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122021538.9U Active CN219014010U (en) | 2021-08-26 | 2021-08-26 | Air inlet protection device of pressure reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219014010U (en) |
-
2021
- 2021-08-26 CN CN202122021538.9U patent/CN219014010U/en active Active
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