CN217502921U - Air inlet sealing structure of tire pressure gauge of monorail vehicle - Google Patents
Air inlet sealing structure of tire pressure gauge of monorail vehicle Download PDFInfo
- Publication number
- CN217502921U CN217502921U CN202221729878.5U CN202221729878U CN217502921U CN 217502921 U CN217502921 U CN 217502921U CN 202221729878 U CN202221729878 U CN 202221729878U CN 217502921 U CN217502921 U CN 217502921U
- Authority
- CN
- China
- Prior art keywords
- air inlet
- pressure gauge
- hollow threaded
- threaded pipe
- nut
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Measuring Fluid Pressure (AREA)
Abstract
The utility model discloses an air inlet sealing structure of a tire pressure gauge of a monorail vehicle, which comprises an air inlet of the pressure gauge, an air inlet pipe fitting, a nut and a hollow threaded pipe, wherein the hollow threaded pipe is sleeved outside the air inlet of the pressure gauge, the lower end of the air inlet pipe fitting extends between the air inlet of the pressure gauge and the hollow threaded pipe, a circle of lug boss is arranged on the periphery of the middle part of the air inlet pipe fitting, the outer diameter of the lug boss is larger than the inner diameter of the hollow threaded pipe and the inner diameter of the upper end of the nut, the upper end of the nut is sleeved on the air inlet pipe fitting above the lug boss, the lower end of the screw is screwed on the outer wall of the hollow threaded pipe, the lug boss can be tightly propped on the top end of the hollow threaded pipe by screwing down the nut, at least one circle of circumferential groove is arranged on the outer wall of the lower end of the air inlet pipe fitting, the sealing ring is embedded in the circumferential groove, the outer wall of the lower end of the air inlet pipe fitting is in sealing connection with the inner wall of the hollow threaded pipe through a sealing ring. The utility model discloses for traditional seal structure, the volume of impressing of sealing washer is little, and ageing speed is slow, long service life.
Description
Technical Field
The utility model relates to a single track vehicle technical field, in particular to single track vehicle tire pressure gauge air inlet seal structure.
Background
The joint of the tire pressure gauge of the monorail vehicle and the air inlet pipe needs to be provided with a sealing structure so as to ensure that gas cannot leak in use. The traditional sealing structure is as follows: the air inlet pipe fitting is fixed together with the air inlet of the pressure gauge through the outer sleeve connecting piece, and the sealing ring is arranged between the air inlet pipe fitting and the air inlet of the pressure gauge. The structure causes the press-in amount of the sealing ring to be large, the compression deformation amount of the sealing ring is large, the aging speed of the sealing ring is high, and therefore sealing failure is easily caused, and the sealing ring in the tire pressure gauge is frequently required to be replaced.
SUMMERY OF THE UTILITY MODEL
To the problem that exists among the above-mentioned prior art, the utility model aims at providing a monorail vehicle tire manometer air inlet seal structure to it is great to solve current seal structure and cause the volume of impressing of sealing washer, and the problem that the sealing washer is ageing fast, easy seal inefficacy.
In order to achieve the purpose, the utility model provides a sealing structure of an air inlet of a tire pressure gauge of a monorail vehicle, which comprises an air inlet of the pressure gauge, an air inlet pipe fitting, a sealing ring, a nut and a hollow threaded pipe arranged on the tire pressure gauge, wherein the hollow threaded pipe is sleeved outside the air inlet of the pressure gauge, the lower end of the air inlet pipe fitting extends into a position between the air inlet of the pressure gauge and the hollow threaded pipe, a circle of boss is arranged on the periphery of the middle part of the air inlet pipe fitting, the boss can be embedded in an inner cavity of the nut from bottom to top, the outer diameter of the boss is larger than the inner diameter of the hollow threaded pipe and the inner diameter of the upper end of the nut, the upper end of the nut is sleeved on the air inlet pipe fitting above the boss, the lower end of the nut is screwed on the outer wall of the hollow threaded pipe, the boss can be tightly abutted on the top end of the hollow threaded pipe by screwing the nut downwards, so that the air inlet pipe fitting and the hollow threaded pipe are locked, at least one circle of circumferential groove is formed in the outer wall of the lower end of the air inlet pipe fitting, the sealing ring is embedded in the circumferential groove, and the outer wall of the lower end of the air inlet pipe fitting is in sealing connection with the inner wall of the hollow threaded pipe through the sealing ring.
In the scheme, the method comprises the following steps: three circles of annular grooves are formed in the outer wall of the lower end of the air inlet pipe fitting, each circle of annular groove is provided with one sealing ring, and the three sealing rings are more favorable for guaranteeing the sealing performance.
In the scheme, the method comprises the following steps: the sealing ring is embedded in the annular groove and then protrudes out of the annular groove by 0.2-0.5 mm, and the part of the sealing ring protruding out of the annular groove is extruded with the inner wall of the hollow threaded pipe, so that sealing connection is formed.
In the scheme, the method comprises the following steps: the sealing ring is a sealing ring with a circular, rectangular or X-shaped cross section.
The utility model has the advantages that: the boss is arranged on the periphery of the air inlet pipe fitting, the nut is matched with the hollow threaded pipe, and the sealing ring is matched, so that the air inlet pipe fitting is in sealing connection with the air inlet of the pressure gauge; the sealing structure is characterized in that an annular groove is formed in the outer wall of the lower end of the air inlet pipe fitting, the sealing ring is embedded in the annular groove and is extruded with the inner wall of the hollow threaded pipe through a part protruding out of the annular groove, and therefore the sealing structure is formed; moreover, the sealing washer is installed on the pipe fitting that admits air, when gas leakage appears in tire pressure table air inlet department, only need loosen the nut, then take out the pipe fitting that admits air from hollow screwed pipe, can carry out the change of sealing washer, and it is convenient and quick to change.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is an exploded schematic view of the present invention.
Detailed Description
As shown in figures 1-2, the air inlet sealing structure of the tire pressure gauge of the monorail vehicle mainly comprises an air inlet 5 of the pressure gauge, an air inlet pipe fitting 1, a sealing ring 2, a nut 4 and a hollow threaded pipe 3 arranged on the tire pressure gauge.
The hollow threaded pipe 3 is sleeved outside the air inlet 5 of the pressure gauge, and the lower end of the air inlet pipe fitting 1 extends between the air inlet 5 of the pressure gauge and the hollow threaded pipe 3. A circle of bosses 101 are arranged on the periphery of the middle part of the air inlet pipe fitting 1, the bosses 101 can be embedded in the inner cavity of the nut 4 from bottom to top, and the outer diameter of the bosses is larger than the inner diameter of the hollow threaded pipe 3 and the inner diameter of the upper end of the nut 4. The upper end suit of nut 4 is on the air inlet pipe fitting 1 of boss 101 top, and its lower extreme spiro union is on the outer wall of hollow screwed pipe 3, can support the boss on the top of hollow screwed pipe 3 through screwing up nut 4 downwards to it is fixed with air inlet pipe fitting 1 and hollow screwed pipe 3 locking.
At least one circle of circumferential groove is arranged on the outer wall of the lower end of the air inlet pipe fitting 1, the sealing ring 2 is embedded in the circumferential groove, and the outer wall of the lower end of the air inlet pipe fitting 1 is in sealing connection with the inner wall of the hollow threaded pipe 3 through the sealing ring 2.
The material of the sealing ring 2 includes but is not limited to rubber, plastic, metal.
Preferably, the outer wall of the lower end of the air inlet pipe fitting 1 is provided with three circles of annular grooves, each circle of annular groove is provided with one sealing ring 2, and the three sealing rings 2 are more favorable for ensuring the sealing performance.
Preferably, the sealing ring 2 is embedded in the annular groove and protrudes out of the annular groove by 0.2-0.5 mm, and the part of the sealing ring 2 protruding out of the annular groove is extruded with the inner wall of the hollow threaded pipe 3, so that sealing connection is formed.
Preferably, the seal ring 2 is a seal ring 2 having a circular, rectangular or X-shaped cross-sectional shape.
Claims (4)
1. The utility model provides a monorail vehicle tire manometer air inlet seal structure, includes manometer air inlet (5), air inlet pipe spare (1) and sealing washer (2), its characterized in that: the tyre pressure gauge is characterized by further comprising a nut (4) and a hollow threaded pipe (3) installed on the tyre pressure gauge, wherein the hollow threaded pipe (3) is sleeved outside the pressure gauge air inlet (5), the lower end of the air inlet pipe (1) extends between the pressure gauge air inlet (5) and the hollow threaded pipe (3), a circle of boss (101) is arranged on the periphery of the middle of the air inlet pipe (1), the boss (101) can be embedded in the inner cavity of the nut (4) from bottom to top, the outer diameter of the boss is larger than the inner diameter of the hollow threaded pipe (3) and the inner diameter of the upper end of the nut (4), the upper end of the nut (4) is sleeved on the air inlet pipe (1) above the boss (101), the lower end of the nut is in threaded connection with the outer wall of the hollow threaded pipe (3), the boss can be tightly abutted to the top end of the hollow threaded pipe (3) through screwing the nut (4) downwards, and the air inlet pipe (1) and the hollow threaded pipe (3) are locked and fixed, at least one circle of circumferential groove is formed in the outer wall of the lower end of the air inlet pipe fitting (1), the sealing ring (2) is embedded in the circumferential groove, and the outer wall of the lower end of the air inlet pipe fitting (1) is in sealing connection with the inner wall of the hollow threaded pipe (3) through the sealing ring (2).
2. The air inlet sealing structure of a tire pressure gauge of a monorail vehicle as defined in claim 1, wherein: the outer wall of the lower end of the air inlet pipe fitting (1) is provided with three circles of annular grooves, and each circle of annular groove is provided with a sealing ring (2).
3. The air inlet sealing structure of a tire pressure gauge of a monorail vehicle as defined in claim 1, wherein: the sealing ring (2) is embedded in the annular groove and protrudes out of the annular groove by 0.2-0.5 mm.
4. The air inlet sealing structure of a tire pressure gauge of a monorail vehicle as defined in claim 1, wherein: the sealing ring (2) is a sealing ring (2) with a circular, rectangular or X-shaped cross section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221729878.5U CN217502921U (en) | 2022-07-05 | 2022-07-05 | Air inlet sealing structure of tire pressure gauge of monorail vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221729878.5U CN217502921U (en) | 2022-07-05 | 2022-07-05 | Air inlet sealing structure of tire pressure gauge of monorail vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217502921U true CN217502921U (en) | 2022-09-27 |
Family
ID=83341386
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221729878.5U Active CN217502921U (en) | 2022-07-05 | 2022-07-05 | Air inlet sealing structure of tire pressure gauge of monorail vehicle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217502921U (en) |
-
2022
- 2022-07-05 CN CN202221729878.5U patent/CN217502921U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN217502921U (en) | Air inlet sealing structure of tire pressure gauge of monorail vehicle | |
| CN210950329U (en) | Easy joint for air conditioner ventilation pipe | |
| CN209894285U (en) | Detachable single-flange liquid level transmitter | |
| CN213929428U (en) | Novel combined sealing ring | |
| CN202088830U (en) | Inflating valve structure for automobile hub | |
| CN211315148U (en) | Sealing structure applied to butterfly valve lip-shaped paste in pipeline | |
| CN204025974U (en) | A kind of inflating gas cylinder joint | |
| CN109211561B (en) | Thin-wall cover plate hydrostatic test tool | |
| CN113446399A (en) | Integrated water pump pressure tank | |
| CN219467454U (en) | Improved aluminum alloy anti-slip wheel | |
| CN105508611A (en) | Stuffing sealing structure and plunger pump with same | |
| CN212643661U (en) | Novel English air faucet | |
| CN211370888U (en) | Stainless steel sealing pressure plate | |
| CN220538772U (en) | Pressure tank formed by integrating rubber bag and fastening piece | |
| CN2311664Y (en) | Flat sealing valve for inner tube of bicycle | |
| CN213871576U (en) | High-pressure self-tightening flange for pipeline | |
| CN209735267U (en) | Dynamic adsorber for laboratory | |
| CN220320585U (en) | Neck butt welding flange for jacket pipe | |
| CN211234861U (en) | Combined upper sealing rubber pad structure for helium detection | |
| CN203035965U (en) | Opening air bag for stern shaft pressurized sealing device | |
| CN210177618U (en) | Air pressure dredger | |
| CN201514150U (en) | Screwed type radiator connecting pipe | |
| CN213177154U (en) | High-pressure cutting ferrule sealing joint | |
| CN201580210U (en) | Plate type wheel rim of electric vehicle | |
| CN215566503U (en) | Inflator connecting structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |