CN219994254U - Pressure maintaining valve with quick plug and one-way seal - Google Patents
Pressure maintaining valve with quick plug and one-way seal Download PDFInfo
- Publication number
- CN219994254U CN219994254U CN202321617153.1U CN202321617153U CN219994254U CN 219994254 U CN219994254 U CN 219994254U CN 202321617153 U CN202321617153 U CN 202321617153U CN 219994254 U CN219994254 U CN 219994254U
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- China
- Prior art keywords
- quick connector
- valve body
- valve
- sealing
- pressure maintaining
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Links
- 238000007789 sealing Methods 0.000 claims abstract description 61
- 238000003780 insertion Methods 0.000 claims abstract description 14
- 230000037431 insertion Effects 0.000 claims abstract description 14
- 230000007704 transition Effects 0.000 claims abstract description 13
- 230000002512 anti-withdrawal effect Effects 0.000 claims description 14
- 229910052734 helium Inorganic materials 0.000 abstract description 11
- 239000001307 helium Substances 0.000 abstract description 11
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 abstract description 11
- 230000000694 effects Effects 0.000 abstract description 4
- 210000003437 trachea Anatomy 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
Landscapes
- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Abstract
The utility model relates to the technical field of pressure maintaining valves, in particular to a pressure maintaining valve with a quick plug for one-way sealing; the front end outer side of the valve body is provided with a front end quick connector which is arranged on the front end surface of the valve body in a surrounding way and forms an insertion space, a transition space and a retraction space; the front end quick connector is provided with a short protruding part, and the insertion space is arranged at one side of the protruding part and is communicated with the retraction space through a transition space above the protruding part; the surface of the front end quick connector is an arc surface and is concentric with the front end of the valve body; the outside of the valve body of front end quick connector top still is provided with prevents moving back the circle, prevents moving back the circle front end and is provided with the elasticity and presss from both sides the mouth, and the elasticity presss from both sides the mouth and is by two structures that the elastic component symmetry that prevent moving back the circle inboard, has reached the pressure retaining valve that has quick connector one-way seal simple structure, and it is easy to make to can retrieve its inside helium completely after airtight test, still can connect air spring fast and keep connecting stable effect.
Description
Technical Field
The utility model relates to the technical field of pressure maintaining valves, in particular to a pressure maintaining valve with a quick plug for one-way sealing.
Background
After the pressure maintaining valve in the prior art is arranged on the air spring assembly, helium needs to be filled into the air spring assembly for airtight test. After the test is completed, helium flows out of the air spring and is recovered, and the pressure maintaining function can prove that when certain helium is recovered, the pressure maintaining valve is closed, and the condition that the helium in the air spring cannot be recovered continuously occurs.
Meanwhile, the pressure maintaining valve in the prior art is time-consuming and labor-consuming to screw in through threads during installation, and cannot be connected with an air spring quickly.
In general, the pressure maintaining valve in the prior art has a complex structure and is difficult to manufacture, helium in the finished product cannot be recovered after the finished product is assembled and the helium tightness test is performed, and meanwhile, the air spring cannot be quickly connected and the stable connection effect is maintained.
Disclosure of Invention
The utility model aims to provide the pressure maintaining valve with the quick connector unidirectional seal aiming at the defects in the prior art, and the pressure maintaining valve with the quick connector unidirectional seal has the advantages of simple structure, easiness in manufacturing, capability of completely recycling helium in the valve after an airtight test, capability of quickly connecting an air spring and keeping the effect of stable connection.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:
the pressure maintaining valve with the one-way seal of the quick connector comprises a valve body, wherein a front-end quick connector is arranged on the outer side of the front end of the valve body, and the front-end quick connector is arranged on the front-end surface of the valve body in a surrounding way in a protruding way and forms an insertion space, a transition space and a retraction space; the front end quick connector is provided with a short protruding part, and the insertion space is arranged on one side of the protruding part and is communicated with the retraction space through the transition space above the protruding part; the surface of the front end quick connector is an arc surface and is concentric with the front end of the valve body; the outer side of the valve body above the front end quick connector is also provided with an anti-withdrawal ring, the front end of the anti-withdrawal ring is provided with an elastic clamping opening, and the elastic clamping opening is symmetrically formed by two elastic pieces facing the inner side of the anti-withdrawal ring; the anti-withdrawal ring penetrates into the upper part of the front end quick connector through the elastic clamping opening and is fixed.
Further, a sealing element and a spring are also arranged, the spring surrounds the outer side of a valve core of the valve body, the valve core is provided with a valve core rear end, and the valve core rear end is matched with a protruding part in the valve body to limit two ends of the spring; the valve core is provided with a valve core front end, the valve core front end is provided with a front end groove opening, and the sealing element is arranged in the front end groove opening; the inside sealed face that inclines that is provided with of valve body front end, sealed face cooperation front end recess mouth compresses and spacing the sealing member, sealed face cooperation simultaneously the sealing member accomplish the sealing to the valve body front end.
Further, a quick plug group is further arranged, the quick plug group is fixed at the rear end of the valve body, an elastic ring is arranged in the valve body and close to the front end of the quick plug group, and a conical surface opening at the front end of the quick plug group surrounds the outer side of the elastic ring.
Further, the elastic ring is also provided with internal teeth, and the internal teeth are provided with internal tooth conical surfaces.
Further, a plurality of plug group grooves are further formed in the quick-connection plug group, and plug inner sealing rings are arranged in the plug group grooves.
Further, the plug inner sealing ring comprises a dustproof sealing ring and a sealing ring for sealing a pipe.
Further, a plug outer sealing ring is further arranged between the quick-connection plug group and the valve body.
Further, the outer part of the front end of the valve body is also provided with an outer sealing ring and an outer thread of the valve body.
By the technical scheme of the utility model, the following technical effects can be realized:
the front end quick connector is arranged on the outer side of the front end of the valve body, surrounds the bulge and is arranged on the front end surface of the valve body, and forms an insertion space, a transition space and a retraction space; the front end quick connector is provided with a short protruding part, and the insertion space is arranged on one side of the protruding part and is communicated with the retraction space through the transition space above the protruding part; the surface of the front end quick connector is an arc surface and is concentric with the front end of the valve body; the outer side of the valve body above the front end quick connector is also provided with an anti-withdrawal ring, the front end of the anti-withdrawal ring is provided with an elastic clamping opening, and the elastic clamping opening is symmetrically formed by two elastic pieces facing the inner side of the anti-withdrawal ring; the anti-backing ring penetrates into the structure above the front end quick connector through the elastic clamping opening and is fixed, so that the pressure maintaining valve with the one-way sealing of the quick connector is simple in structure and easy to manufacture, helium in the anti-backing ring can be completely recovered after airtight test, and the anti-backing ring can be quickly connected with an air spring and can be stably connected.
Drawings
In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present utility model, and other drawings may be obtained according to the drawings without inventive effort to those skilled in the art.
FIG. 1 is a schematic view of a pressure maintaining valve with a quick connector unidirectional seal in an embodiment of the utility model;
FIG. 2 is a schematic view of the valve body and the anti-backing ring in an embodiment of the utility model;
FIG. 3 is a cross-sectional view of a valve body in an embodiment of the utility model;
FIG. 4 is a cross-sectional view of the shutter body after insertion of the trachea in an embodiment of the utility model;
FIG. 5 is a cross-sectional view of a valve body with an anti-backup ring in an embodiment of the utility model;
FIG. 6 is a cross-sectional view of a valve body with an anti-backup ring after insertion into a trachea in an embodiment of the utility model;
FIG. 7 is a schematic illustration of a cross-section of an end of a connecting air spring in an embodiment of the utility model;
FIG. 8 is a cross-sectional view of an air spring bore of a pressure maintaining valve fitted with a quick connector one-way seal in an embodiment of the present utility model;
reference numerals:
the valve comprises a valve body 1, a sealing surface 1-1, a protruding part 1-2, a sealing piece 2, a spring 3, a valve core 4, a valve core front end 4-1, a front end groove opening 4-1-1, a valve core rear end 4-2, a quick-connection plug group 5, a conical surface opening 5-1, a plug group groove 5-2, an elastic ring 6, an inner tooth 6-1, an inner tooth conical surface 6-1-1, a plug inner sealing ring 7, a plug outer sealing ring 8, a valve body outer sealing ring 9, a front end quick-connection joint 10, an insertion space 10-1, a transition space 10-2, a retraction space 10-3, a protruding part 10-4, an anti-retraction ring 11 and an elastic clamping opening 11-1.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments.
In the description of the present utility model, it should be noted that the directions or positional relationships indicated as being "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. are directions or positional relationships based on the drawings are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the devices or elements to be referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
The pressure maintaining valve with the one-way seal of the quick connector comprises a valve body 1, wherein a front-end quick connector 10 is arranged on the outer side of the front end of the valve body 1, and the front-end quick connector 10 is arranged on the front end surface of the valve body 1 in a surrounding and protruding mode and forms an insertion space 10-1, a transition space 10-2 and a retraction space 10-3; the front end quick connector 10 is provided with a short protruding part 10-4, and the insertion space 10-1 is arranged at one side of the protruding part 10-4 and is communicated with the retraction space 10-3 through the transition space 10-2 above the protruding part 10-4; the surface of the front end quick connector 10 is an arc surface and is concentric with the front end of the valve body 1; an anti-withdrawal ring 11 is further arranged on the outer side of the valve body 1 above the front end quick connector 10, an elastic clamping opening 11-1 is arranged at the front end of the anti-withdrawal ring 11, and the elastic clamping opening 11-1 is symmetrically formed by two elastic pieces facing the inner side of the anti-withdrawal ring 11; the anti-back ring 11 penetrates through the elastic clamping opening 11-1 to be fixed above the front end quick connector 10.
Specifically, after the valve body 1 is inserted into the air spring through the front end quick connector 10, the valve body 1 is fixed by the protruding block arranged on the inner wall of the matched connection part, and the protruding block is positioned in the position where the protruding block is inserted into the space 10-1. The valve body 1 is rotated, the lug moves transversely in the transition space 10-2, then the valve body 1 is lifted up in a direction away from the air spring, and the lug enters the retraction space 10-3, so that the quick connection between the valve body 1 and the air spring is completed. The insertion space 10-1, the transition space 10-2 and the retraction space 10-3 are formed by the protruding portion 10-4 in the front-end quick connector 10 cooperating with the body of the front-end quick connector 10. After the quick connection between the valve body 1 and the air spring is completed, the anti-back ring 11 penetrates into the upper part of the front end quick connector 10 through the elastic clamping opening 11-1, the elastic piece of the elastic clamping opening 11-1 is contracted due to pressure to give up, the clamping of the anti-back ring 11 is completed and fixed between the front end quick connector 10 and the valve body 1 body, namely, the back of the protruding block in the back space 10-3 is limited, the back of the valve body 1 to the air spring is prevented, and the fixation of the connection is ensured.
As a preference of the above embodiment, as shown in fig. 2 and 3, a sealing member 2 and a spring 3 are further provided, the spring 3 is arranged around the outer side of a valve core 4 of the valve body 1, the valve core 4 is provided with a valve core rear end 4-2, and the valve core rear end 4-2 cooperates with a protruding part 1-2 in the valve body 1 to limit two ends of the spring 3; the valve core 4 is provided with a valve core front end 4-1, the valve core front end 4-1 is provided with a front end groove opening 4-1-1, and the sealing element 2 is arranged in the front end groove opening 4-1-1; an inclined sealing surface 1-1 is arranged in the front end of the valve body 1, the sealing surface 1-1 is matched with the front end groove opening 4-1-1 to compress and limit the sealing element 2, and meanwhile, the sealing surface 1-1 is matched with the sealing element 2 to seal the front end of the valve body 1.
Specifically, during pressure maintaining sealing, the spring 3 props against the rear end 4-2 of the valve core to keep the valve core 4 and the front end 4-1 of the valve core in a retreating state, the sealing element 2 in the groove opening 4-1-1 of the front end applies force to the inside of the valve body 1 along the inclined sealing surface 1-1, and the sealing element 2 is extruded by the pressure between the sealing element 2 and the sealing surface 1-1, so that the higher the pressure is, the higher the compression rate of the sealing element 2 is, and the better the sealing performance of the valve body 1 is. When helium is recovered, the thimble tool stretches into the valve body 1 from the rear end of the valve body 1, the valve core 4 is pushed away, and the helium in the air spring flows out. When one-way pressure maintaining is carried out, the thimble tool stretches into the valve body 1 from the rear end of the valve body 1, pushes away the valve core 4, and fills compressed air into the air spring through the pressure maintaining valve. After the ejector pin and the air charging device are withdrawn, the valve core 4 is rapidly withdrawn due to the resilience force and the pressure difference of the spring 3, and the sealing element 2 is matched with the sealing surface 1-1 to form a seal. When the air pipe is connected into the valve body 1, the air pipe pushes the valve core 4 open, the rear end 4-2 of the valve core is matched with the protruding part 1-2 to squeeze the internal spring 3 of the valve core, the front end 4-1 of the valve core moves outwards along with the valve core 4, the sealing element 2 in the groove opening 4-1-1 at the front end is separated from the original position of the valve core, the sealing element 2 and the sealing surface 1-1 are matched to form the sealing on the front end of the valve body 1, and the normally-open state inside the valve body 1 is maintained.
As a preference of the above embodiment, as shown in fig. 2 and 3, a quick connector assembly 5 is further provided, the quick connector assembly 5 is fixed at the rear end of the valve body 1, an elastic ring 6 is provided in the valve body 1 near the front end of the quick connector assembly 5, and a conical surface opening 5-1 at the front end of the quick connector assembly 5 surrounds the outer side of the elastic ring 6.
Specifically, through the structure of quick connect plug group 5 fixed at the valve body 1 rear end to accomplish the action that the trachea stretches into valve body 1 and fixes fast, and be provided with elastic ring 6 in valve body 1 be close to the position of quick connect plug group 5 front end, when the trachea inserts valve body 1 rear end, the trachea struts elastic ring 6, and elastic ring 6 accomplishes outside extension and gives certain locking force all around in conical surface opening 5-1, and the auxiliary fixation of accomplishing between trachea and the quick connect plug group 5.
As a preferable example of the above embodiment, as shown in fig. 2 and 3, the elastic ring 6 is further provided with internal teeth 6-1, and the internal teeth 6-1 are provided with internal tooth tapered surfaces 6-1-1.
Specifically, through still being provided with internal tooth 6-1 in the elastic ring 6, be provided with the structure of internal tooth conical surface 6-1-1 on the internal tooth 6-1 for accomplish the backward locking to the trachea through the internal tooth, and accomplish the smooth intubate of trachea through internal tooth conical surface 6-1-1.
As a preferable way of the above embodiment, as shown in fig. 2 and 3, a plurality of plug group grooves 5-2 are further provided in the quick-connect plug group 5, and an internal plug sealing ring 7 is provided in the plug group groove 5-2.
As a preferable example of the above embodiment, as shown in fig. 2 and 3, the plug inner seal 7 includes a dust seal and a seal for sealing a pipe.
Specifically, the inner seal ring 7 of the plug is used for sealing all the positions in the quick-connection plug group 5.
As a preferable example of the above embodiment, as shown in fig. 2 and 3, a plug outer seal ring 8 is further disposed between the quick connector assembly 5 and the valve body 1.
Specifically, the plug outer seal ring 8 is used for sealing the quick-connection plug group 5 and the valve body 1.
As a preference of the above embodiment, as shown in fig. 1, an outer sealing ring 9 of the valve body is further disposed outside the front end of the valve body 1.
The foregoing has outlined and described the basic principles, features, and advantages of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (8)
1. A pressure maintaining valve with a quick connector and one-way seal is characterized in that:
the valve comprises a valve body (1), wherein a front-end quick connector (10) is arranged on the outer side of the front end of the valve body (1), the front-end quick connector (10) is arranged on the front-end surface of the valve body (1) in a surrounding protruding mode, and an insertion space (10-1), a transition space (10-2) and a retraction space (10-3) are formed; the front end quick connector (10) is provided with a short protruding part (10-4), and the insertion space (10-1) is arranged on one side of the protruding part (10-4) and is communicated with the retraction space (10-3) through the transition space (10-2) above the protruding part (10-4); the surface of the front end quick connector (10) is an arc surface and is concentric with the front end of the valve body (1);
an anti-withdrawal ring (11) is further arranged on the outer side of the valve body (1) above the front end quick connector (10), an elastic clamping opening (11-1) is arranged at the front end of the anti-withdrawal ring (11), and the elastic clamping opening (11-1) is symmetrically formed by two elastic pieces facing the inner side of the anti-withdrawal ring (11); the anti-withdrawal ring (11) penetrates into the upper part of the front end quick connector (10) through the elastic clamping opening (11-1) and is fixed.
2. The pressure maintaining valve with a quick connector unidirectional seal of claim 1, wherein: the valve is characterized by further comprising a sealing piece (2) and a spring (3), wherein the spring (3) surrounds the outer side of a valve core (4) of the valve body (1), the valve core (4) is provided with a valve core rear end (4-2), and the valve core rear end (4-2) is matched with a protruding part (1-2) in the valve body (1) to limit the two ends of the spring (3); the valve core (4) is provided with a valve core front end (4-1), the valve core front end (4-1) is provided with a front end groove opening (4-1-1), and the sealing element (2) is arranged in the front end groove opening (4-1-1); the sealing device is characterized in that an inclined sealing surface (1-1) is arranged in the front end of the valve body (1), the sealing surface (1-1) is matched with the front end groove opening (4-1-1) to compress and limit the sealing piece (2), and meanwhile the sealing surface (1-1) is matched with the sealing piece (2) to seal the front end of the valve body (1).
3. The pressure maintaining valve with a quick connector unidirectional seal of claim 2, wherein: the quick connector is characterized by further comprising a quick connector group (5), wherein the quick connector group (5) is fixed at the rear end of the valve body (1), an elastic ring (6) is arranged in the valve body (1) and close to the front end of the quick connector group (5), and a conical surface opening (5-1) at the front end of the quick connector group (5) surrounds the outer side of the elastic ring (6).
4. A pressure maintaining valve with a quick connector one-way seal as defined in claim 3, wherein: an inner tooth (6-1) is further arranged in the elastic ring (6), and an inner tooth conical surface (6-1-1) is arranged on the inner tooth (6-1).
5. The pressure maintaining valve with a quick connector unidirectional seal of claim 4, wherein: a plurality of plug group grooves (5-2) are further formed in the quick-connection plug group (5), and plug inner sealing rings (7) are arranged in the plug group grooves (5-2).
6. The pressure maintaining valve with a quick connector unidirectional seal of claim 5, wherein: the plug inner sealing ring (7) comprises a dustproof sealing ring and a sealing ring for sealing a pipe.
7. The pressure maintaining valve with a quick connector unidirectional seal of claim 6, wherein: and a plug outer sealing ring (8) is further arranged between the quick-connection plug group (5) and the valve body (1).
8. The pressure maintaining valve with a quick connector unidirectional seal of claim 7, wherein: the outside of the front end of the valve body (1) is also provided with a valve body outer sealing ring (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321617153.1U CN219994254U (en) | 2023-06-25 | 2023-06-25 | Pressure maintaining valve with quick plug and one-way seal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321617153.1U CN219994254U (en) | 2023-06-25 | 2023-06-25 | Pressure maintaining valve with quick plug and one-way seal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219994254U true CN219994254U (en) | 2023-11-10 |
Family
ID=88607401
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321617153.1U Active CN219994254U (en) | 2023-06-25 | 2023-06-25 | Pressure maintaining valve with quick plug and one-way seal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219994254U (en) |
-
2023
- 2023-06-25 CN CN202321617153.1U patent/CN219994254U/en active Active
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