CN211259777U - Two-way air pressure regulating valve - Google Patents
Two-way air pressure regulating valve Download PDFInfo
- Publication number
- CN211259777U CN211259777U CN201921796051.4U CN201921796051U CN211259777U CN 211259777 U CN211259777 U CN 211259777U CN 201921796051 U CN201921796051 U CN 201921796051U CN 211259777 U CN211259777 U CN 211259777U
- Authority
- CN
- China
- Prior art keywords
- valve
- air pressure
- valve core
- pressure regulating
- valve body
- 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
- 230000001105 regulatory effect Effects 0.000 title claims abstract description 74
- 238000007789 sealing Methods 0.000 claims abstract description 65
- 230000000149 penetrating effect Effects 0.000 claims abstract description 8
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 230000002457 bidirectional effect Effects 0.000 abstract description 8
- 230000000694 effects Effects 0.000 description 4
- 238000012856 packing Methods 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000032683 aging Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000001965 increasing effect Effects 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Images
Landscapes
- Safety Valves (AREA)
Abstract
The utility model discloses a two-way air pressure regulating valve, which comprises a valve body with an inner cavity; the valve seat is positioned in the inner cavity and comprises a first through hole penetrating through the upper surface and the lower surface; the air pressure regulating valve also comprises a valve core which is arranged in the first through hole in a penetrating way, and the valve core comprises a bulge part which is formed by outwards bulging the surface of the valve core around the periphery of the outer side wall of the valve core; a gap is reserved between the bulge and the inner side wall of the valve body; the air pressure regulating valve also comprises an annular sealing ring arranged around the valve core; the annular sealing ring comprises a first abutting part positioned on the inner side of the upper part and abutted against the boss part and a second abutting part positioned on the outer side of the upper part and abutted against the inner side wall of the valve body; the spool is configured to be movable up and down in an axial direction thereof. The bidirectional air pressure regulating valve can realize the function of automatically regulating the internal and external pressure of the regulating valve, can effectively improve the sealing performance of the regulating valve, and can prevent internal devices from being damaged due to collision.
Description
Technical Field
The utility model relates to an atmospheric pressure adjusts technical field. And more particularly, to a bi-directional air pressure regulator valve.
Background
Because the internal pressure of the closed container is greatly influenced by the ambient temperature, the closed container used in aerospace products generally requires to have an air pressure regulating function, namely, when a large pressure difference exists between the interior of the container and the external environment, the container can automatically balance the internal pressure and the external pressure through the air pressure regulating valve. The air pressure regulating valves are divided into two types, one is a one-way air pressure regulating valve, and the other is a two-way air pressure regulating valve. The one-way air pressure regulating valve is also called a pressure relief valve and mainly used for relieving pressure to the external environment when the internal pressure of the container exceeds the standard so as to ensure the safety of the container and internal equipment thereof. The bidirectional air pressure regulating valve can not only release pressure to the external environment when the internal pressure of the container exceeds the standard, but also realize air intake when the internal pressure of the container is lower than the external environment pressure. This two-way regulating function is particularly important when the closed container is used for air transportation.
At present, the common bidirectional air pressure regulating valve in the market mainly has three defects: firstly, the sealing performance of the air pressure regulating valve is poor, so that the sealing effect of the whole closed container is influenced; secondly, the structure of the air pressure regulating valve is complex and is not easy to assemble; thirdly, the air pressure regulating valve is arranged on the wall of the container, and the exposed part is easy to damage due to collision.
Therefore, in order to overcome the technical defects of the prior art, a novel bidirectional air pressure regulating valve needs to be provided.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a two-way air pressure regulating valve, but the inside and outside pressure of automatically regulated governing valve, and effectively improve the sealing performance of governing valve, can prevent simultaneously that the inside device of governing valve from receiving to collide with and cause the damage to air pressure regulating valve simple structure, easily assembly.
In order to achieve the above object, the present invention provides a two-way air pressure regulating valve, which comprises a valve body having an inner cavity; the valve seat is positioned in the inner cavity and comprises a first through hole penetrating through the upper surface and the lower surface; the air pressure regulating valve also comprises a valve core which is arranged in the first through hole in a penetrating way, and the valve core comprises a bulge part which is formed by outwards bulging the surface of the valve core around the periphery of the outer side wall of the valve core; the inner cavity is divided into a front cavity and a rear cavity by the bulge; a gap is reserved between the bulge and the inner side wall of the valve body; the air pressure regulating valve also comprises an annular sealing ring arranged around the valve core; the annular sealing ring is positioned on the surface of one side of the valve seat close to the convex part of the valve core; the annular sealing ring comprises a first abutting part positioned on the inner side of the upper part and abutted against the boss part and a second abutting part positioned on the outer side of the upper part and abutted against the inner side wall of the valve body; the valve core is configured to move up and down along the axial direction of the valve core, when the valve core moves up along the axial direction of the valve core, the second abutting part of the annular sealing ring is fixedly abutted with the inner side wall of the valve body, and the first abutting part of the annular sealing ring is separated from the bulge part of the valve core to form an exhaust channel; the exhaust passage is communicated with the gap; when the valve core moves downwards along the axial direction of the valve core, the first abutting part of the annular sealing ring and the protruding part of the valve core are abutted and fixed, the valve core drives the valve seat to move downwards along the axial direction of the valve core, and the second abutting part of the annular sealing ring is separated from the inner side wall of the valve body to form an air inlet channel; the intake passage communicates with the gap.
In addition, preferably, a surface of the convex portion of the valve element, which abuts against the first abutting portion of the annular sealing ring, is an arc surface or an inclined surface.
In addition, preferably, the valve body comprises an inner convex part formed by extending outwards from the inner side wall of the valve body, and the surface of the inner convex part, which is abutted against the second abutting part of the annular sealing ring, is an inclined surface or an arc surface; a gap is reserved between the inner convex part and the convex part.
Further, preferably, the valve body includes a projection formed to extend outwardly around an outer side wall thereof; the air pressure regulating valve further comprises a fixing piece fixed on the outer side surface of the valve body in a surrounding mode, a first annular sealing piece and a second annular sealing piece arranged on the bottom face of the protruding portion.
In addition, preferably, the air pressure regulating valve comprises a valve cap which is fixedly connected with one end of the valve body; the top surface of the valve cap is provided with a second through hole which penetrates through the upper side surface and the lower side surface and can be used for the end part of the valve core to pass through; the space enclosed by the valve cap and the valve body forms a front cavity of the inner cavity of the valve body.
Further, preferably, the air pressure regulating valve includes a first elastic member providing a restoring capability to the valve spool and a second elastic member providing a restoring capability to the valve seat.
Furthermore, preferably, the first elastic member acts between the valve seat and the valve spool; the second elastic component acts between the valve seat and the valve body; the direction of the acting force of the first elastic component is opposite to the movement direction of the valve core; the direction of the acting force of the second elastic component is opposite to the moving direction of the valve seat; the first elastic member is located inside the second elastic member.
In addition, preferably, the first elastic member is arranged around the valve core, one end of the first elastic member abuts against the bottom surface of the valve seat, and the other end of the first elastic member is fixedly connected with the outer side wall of the valve core; or the valve core comprises a first base which is formed by outwards protruding around the peripheral surface of the outer side wall of the valve core; the other end of the first elastic component is abutted against the first base.
In addition, preferably, the second elastic component is arranged around the valve core, one end of the second elastic component abuts against the bottom surface of the valve seat, and the other end of the second elastic component is fixedly connected with the inner side wall of the valve body; or the valve body also comprises a second base which is formed by outwards protruding the surface of the periphery of the inner side wall of the valve body; the other end of the second elastic component is abutted against the second base.
Furthermore, preferably, the cross section of the annular sealing ring is rectangular.
The utility model has the advantages as follows:
1. the two-way air pressure regulating valve provided by the utility model is provided with the annular sealing ring and the valve core, so that the function of automatically regulating the internal and external pressure of the regulating valve can be realized, the sealing performance and the reliability of the regulating valve can be effectively improved, and meanwhile, the damage of internal devices caused by collision can be prevented; in addition, the bidirectional air pressure regulating valve is simple in structure, simple in interface relation among all parts and easy to assemble.
2. The utility model provides a ring packing circle forms the contact of line and line with the lateral wall in case, the valve body respectively in the two-way air pressure regulating valve, and reducible ring packing circle's butt area avoids the butt area too big ring packing circle that leads to ageing deformation easily.
3. The utility model provides a two-way air pressure regulating valve is provided with valve cap, mounting, first annular seal spare and second annular seal spare, fixes and seals the valve body from the valve body is external, further improves sealing performance, and plays the effect of protection to spare parts such as case, the ring packing circle of valve body inner chamber, avoids bumping between the internals.
4. The utility model provides a two-way air pressure regulating valve accessible realizes exhausting and the function of admitting air manually after demolising the valve cap, has increased this air pressure regulating valve's operational flexibility.
Drawings
The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.
Fig. 1 shows a structural sectional view of a two-way air pressure regulating valve according to a preferred embodiment of the present invention.
Fig. 2 shows a 3D structure diagram of a valve body according to a preferred embodiment of the present invention.
Fig. 3 shows a 3D block diagram of a valve seat according to a preferred embodiment of the invention.
Figure 4 illustrates a 3D block diagram of the bonnet of a preferred embodiment of the present invention.
Detailed Description
Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: unless specifically stated otherwise, the relative arrangement of the components and steps, the numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention.
The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.
Techniques and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail, but are intended to be considered a part of the specification where appropriate.
In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
The two-way air pressure regulating valve in the prior art mainly has three disadvantages: firstly, the sealing performance of the air pressure regulating valve is poor, so that the sealing effect of the whole closed container is influenced; secondly, the structure of the air pressure regulating valve is complex and is not easy to assemble; thirdly, the air pressure regulating valve is arranged on the wall of the container, and the exposed part is easy to damage due to collision.
In order to overcome the technical defects, the utility model provides a two-way air pressure regulating valve, as shown in fig. 1-4, the two-way air pressure regulating valve comprises a valve body 10 with an inner cavity; a valve seat 20 positioned in the inner cavity, the valve seat 20 including a first through hole 21 penetrating the upper and lower surfaces; preferably, as shown in fig. 3, the valve seat 20 may be designed to be hollow so as to facilitate smooth gas flow. The air pressure regulating valve also comprises a valve core 30 which is arranged in the first through hole 21 in a penetrating way, and the valve core 30 comprises a convex part 31 which is formed by outwards protruding around the surface of the outer side wall of the valve core 30; the bulge 31 divides the inner cavity into a front cavity and a rear cavity; a gap is reserved between the bulge part 31 and the inner side wall of the valve body 10; the air pressure regulating valve further comprises an annular sealing ring 50 arranged around the valve core 30; it will be appreciated that the thickness of the annular seal 50 is greater than the distance of the gap. The annular sealing ring 50 is positioned on the surface of one side of the valve seat 20 close to the convex part 31 of the valve core 30; as shown in fig. 1, an annular groove 22 for accommodating the annular sealing ring 50 is provided on a surface of the valve seat 20 on a side close to the protrusion 31 of the valve core 30, and the surfaces of the annular sealing ring 50 and the annular groove 22 can be adhesively fixed. Further preferably, the bottom surface of the annular groove 22 may be further recessed downward to form a glue storage tank 23, further enhancing the connection and fixation between the annular sealing ring 50 and the annular groove 22. The annular seal ring 50 includes a first abutting portion 51 positioned on the inner side of the upper portion and abutting against the boss portion 31, and a second abutting portion 52 positioned on the outer side of the upper portion and abutting against the inner wall of the valve body 10; the spool 30 is configured to be movable up and down in its axial direction. When the valve core 30 moves upwards along the axial direction thereof, the second abutting part 52 of the annular sealing ring 50 is abutted and fixed with the inner side wall of the valve body 10, and the first abutting part 51 of the annular sealing ring 50 is separated from the bulge part 31 of the valve core 30 to form an exhaust channel; the exhaust passage is communicated with the gap; when the valve core 30 moves downwards along the axial direction thereof, the first abutting part 51 of the annular sealing ring 50 and the protruding part 31 of the valve core 30 are abutted and fixed, and the valve core 30 drives the valve seat 20 to move downwards along the axial direction of the valve core 30, and the second abutting part 52 of the annular sealing ring 50 is separated from the inner side wall of the valve body 10 to form an air inlet channel; the intake passage communicates with the gap.
When the bidirectional air pressure regulating valve works, when the pressure of the inner cavity of the valve body of the air pressure regulating valve is greater than the pressure outside the air pressure regulating valve and reaches a certain pressure threshold value, the valve core 30 moves upwards along the axial direction under the action of the pressure, the first abutting part 51 of the annular sealing ring 50 is separated from the bulge part 31 of the valve core 30 to form an exhaust channel, the exhaust channel is communicated with the gap, and the second abutting part 52 of the annular sealing ring 50 is still fixedly abutted with the inner side wall of the valve body 10, so that the gas in the inner cavity of the valve body is discharged out of the gap along the exhaust channel to realize pressure relief; when the pressure in the inner cavity of the air pressure regulating valve body is smaller than the pressure outside the air pressure regulating valve and reaches a certain pressure threshold value, the valve core 30 moves downwards along the axial direction under the action of the pressure, the valve core 30 drives the valve seat 20 to move downwards along the axial direction of the valve core 30, and the second abutting part 52 of the annular sealing ring 50 is separated from the inner side wall of the valve body 10 to form an air inlet channel; the air inlet channel is communicated with the gap, and the first abutting part 51 of the annular sealing ring 50 is fixedly abutted with the boss part 31 of the valve core 30, so that air outside the air pressure adjusting valve enters the inner cavity of the valve body along the air inlet channel through the gap. The bidirectional air pressure regulating valve provided by the utility model can realize automatic regulation of the pressure inside and outside the regulating valve, effectively improve the sealing performance and reliability of the regulating valve, and simultaneously prevent internal devices from being damaged due to collision; in addition, the bidirectional air pressure regulating valve is simple in structure, simple in interface relation among all parts and easy to assemble.
Preferably, the surface of the convex portion 31 of the valve core 30, which is in contact with the first contact portion 51 of the annular sealing ring 50, is an arc surface or an inclined surface; the cross section of the annular sealing ring 50 may preferably be rectangular, so that line-to-line contact is formed between the annular sealing ring 50 and the valve core 30, i.e. line-to-line contact is formed between the first abutting part 51 and the convex part 31 of the valve core 30; thereby reduce the butt area of annular seal, avoid the butt area too big easy ageing deformation of annular seal that leads to. Similarly, it can be understood that the valve body 10 may include an inner protrusion 11 extending outward from the inner sidewall of the valve body 10, and the surface of the inner protrusion 11 abutting against the second abutting portion 52 of the annular sealing ring 50 is an inclined surface or an arc surface; so that a line-to-line contact is also formed between the second abutment 52 and the inner protrusion 11. In the other preferred embodiment, a gap 40 is left between the inner protrusion 11 and the protrusion 31. That is, when the valve element 30 moves upward in the axial direction thereof, the second abutting portion 52 of the annular seal ring 50 and the inner protrusion 11 are fixed in abutment, and the first abutting portion 51 of the annular seal ring 50 and the boss portion 31 of the valve element 30 are disengaged to form an exhaust passage; the exhaust passage is communicated with the gap; when the valve core 30 drives the valve seat 20 to move downwards along the axial direction of the valve core 30, the first abutting part 51 of the annular sealing ring 50 is abutted and fixed with the boss part 31 of the valve core 30, and the second abutting part 52 of the annular sealing ring 50 is separated from the inner side wall of the inner convex part 11 to form an air inlet channel; the intake passage communicates with the gap.
Further, in order to further improve the sealing performance of the air pressure regulating valve and avoid collision between parts of the inner cavity of the valve body, as shown in fig. 1, the valve body 10 includes a protrusion 12 formed by extending outwards around the outer side wall thereof; the air pressure adjusting valve further includes a fixing member 60 fixed around the outer side surface of the valve body 10, a first annular sealing member 70, and a second annular sealing member 80 provided on the bottom surface of the protrusion 12. The top surface of the fixing member 60 is recessed inwardly to form a first annular recess 61, and the first annular seal member 70 is located in the first annular recess 61. In addition, a second annular recessed land 121 is formed on the bottom surface of the projection 12 so as to be recessed inward, and the second annular seal 80 is disposed in the annular recessed land 121 of the projection 12. The first annular seal 70 may be a rectangular seal ring and the second annular seal 80 may be an O-ring seal ring; the fixture 60 is preferably a hexagonal nut. The fixing piece, the first annular sealing piece and the second annular sealing piece fix and seal the valve body from the outer side of the valve body and protect parts such as a valve core and an annular sealing ring in an inner cavity of the valve body.
In a preferred embodiment, as shown in fig. 1 and 4, the air pressure regulating valve includes a valve cap 90 fixed to one end of the valve body 10, and the valve cap 90 and the valve body 10 may be fastened together to facilitate manual removal of the valve cap. The top surface of the bonnet 90 is provided with a second through hole 91 which penetrates through the upper and lower side surfaces and through which the end of the valve core 30 can pass; the space enclosed by the bonnet 90 and the valve body 10 forms a front cavity of the inner cavity of the valve body 10. The valve cap can play the effect of protection case, avoids the case to collide with and cause the damage. Preferably, as shown in fig. 4, the top surface of the bonnet 90 is further provided with a plurality of elongated holes 92 to ensure smooth gas flow. The preferred embodiment can manually realize the functions of air exhaust and air intake after the valve cap is removed, thereby increasing the operation flexibility of the air pressure regulating valve.
In order to achieve the object of the present invention, the present invention provides another preferred embodiment, wherein the air pressure adjusting valve comprises a first elastic member 100 providing the valve core 30 with a restoring capability and a second elastic member 110 providing the valve seat 20 with a restoring capability. Wherein the first elastic component 100 acts between the valve seat 20 and the valve core 30; the second elastic component 110 acts between the valve seat 20 and the valve body 10; the direction of the force of the first elastic member 100 is opposite to the movement direction of the spool 30; the direction of the force of the second elastic component 110 is opposite to the moving direction of the valve seat 20; the first elastic member 100 is located inside the second elastic member 110.
Specifically, as shown in fig. 1, the first elastic component 100 is disposed around the valve core 30, one end of the first elastic component 100 abuts against the bottom surface of the valve seat 20, and the other end is fixedly connected to the outer sidewall of the valve core 30; alternatively, the valve core 30 includes a first seat 32 formed by outwardly protruding around a circumferential surface of an outer side wall thereof; the other end of the first elastic member 100 abuts against the first base 32. Specifically, as shown in fig. 1 and 3, the valve seat 20 further includes a step portion 24 formed by extending downward from an edge of a bottom surface, and a connecting portion 25 connecting the first through hole 21 and the step portion 24, and one end of the first elastic member 100 abuts against the connecting portion 25. The first base 32 is stepped, and the other end of the first elastic member 100 abuts against a stepped surface of the first base 32. The first elastic member may be a compression spring. It will be appreciated that the first seat may be formed by extending the outer side wall of the valve element around the circumference, or may be a separate component fixed to the valve element. When the valve core 30 moves upward in the axial direction, it needs to move upward against the elastic force of the first elastic part 100; after the air exhaust is completed, the valve core 30 is driven to move downward by the elastic force of the first elastic part 100, so that the first abutting part 51 of the annular sealing ring 50 and the protruding part 31 of the valve core 30 again abut to complete the sealing.
Similarly, it can be understood that the second elastic member 110 is disposed around the valve core 30, one end of the second elastic member 110 abuts against the bottom surface of the valve seat 20, and the other end is fixedly connected to the inner sidewall of the valve body 10; or, the valve body 10 further includes a second base 13 formed by protruding outwards around a circumferential surface of an inner side wall thereof; the other end of the second elastic member 110 abuts against the second base 13. Specifically, as shown in fig. 1 and 3, the valve seat 20 further includes a step portion 24 formed by extending downward from an edge of a bottom surface, and one end of the second elastic member 110 abuts against a step surface of the step portion 24; the second base 13 is stepped, and the other end of the second elastic portion 110 abuts against a stepped surface of the second base 13. The second elastic member 110 can be a compression spring, and it is understood that the second seat can be formed by extending outward from the inner side wall of the valve body or can be a separate component fixed on the valve body. When the valve core 30 drives the valve seat 20 to move downward along the axial direction, the elastic force of the second elastic portion 110 needs to be overcome; after the air intake is completed, the elastic force of the second elastic portion 110 drives the valve seat 20 to move upward, so that the second abutting portion 52 of the annular sealing ring 50 abuts against the inner side wall of the valve body 10 again to complete the sealing.
Obviously, the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention, and it is obvious for those skilled in the art to make other variations or changes based on the above descriptions, and all the embodiments cannot be exhausted here, and all the obvious variations or changes that belong to the technical solutions of the present invention are still in the protection scope of the present invention.
Claims (10)
1. A two-way air pressure regulating valve, characterized in that, two-way air pressure regulating valve includes:
a valve body having an interior cavity;
the valve seat is positioned in the inner cavity and comprises a first through hole penetrating through the upper surface and the lower surface;
the air pressure regulating valve also comprises a valve core which is arranged in the first through hole in a penetrating way, and the valve core comprises a bulge part which is formed by outwards bulging the surface of the valve core around the periphery of the outer side wall of the valve core; the inner cavity is divided into a front cavity and a rear cavity by the bulge; a gap is reserved between the bulge and the inner side wall of the valve body;
the air pressure regulating valve also comprises an annular sealing ring arranged around the valve core;
the annular sealing ring is positioned on the surface of one side of the valve seat close to the convex part of the valve core;
the annular sealing ring comprises a first abutting part positioned on the inner side of the upper part and abutted against the boss part and a second abutting part positioned on the outer side of the upper part and abutted against the inner side wall of the valve body;
the valve core is configured to move up and down along the axial direction of the valve core, when the valve core moves up along the axial direction of the valve core, the second abutting part of the annular sealing ring is fixedly abutted with the inner side wall of the valve body, and the first abutting part of the annular sealing ring is separated from the bulge part of the valve core to form an exhaust channel; the exhaust passage is communicated with the gap;
when the valve core moves downwards along the axial direction of the valve core, the first abutting part of the annular sealing ring and the protruding part of the valve core are abutted and fixed, the valve core drives the valve seat to move downwards along the axial direction of the valve core, and the second abutting part of the annular sealing ring is separated from the inner side wall of the valve body to form an air inlet channel; the intake passage communicates with the gap.
2. The two-way air pressure regulating valve according to claim 1, wherein the surface of the protruding portion of the valve core abutting against the first abutting portion of the annular sealing ring is an arc surface or an inclined surface.
3. The two-way air pressure regulating valve according to claim 1, wherein the valve body comprises an inner convex portion extending outwards from the inner side wall of the valve body, and the surface of the inner convex portion abutting against the second abutting portion of the annular sealing ring is an inclined surface or an arc surface;
a gap is reserved between the inner convex part and the convex part.
4. The two-way air pressure regulating valve according to claim 1,
the valve body comprises a protruding part formed by extending outwards around the outer side wall of the valve body;
the air pressure regulating valve further comprises a fixing piece fixed on the outer side surface of the valve body in a surrounding mode, a first annular sealing piece and a second annular sealing piece arranged on the bottom face of the protruding portion.
5. The bi-directional air pressure regulating valve of claim 1, wherein said air pressure regulating valve includes a valve cap fixedly coupled to one end of said valve body;
the top surface of the valve cap is provided with a second through hole which penetrates through the upper side surface and the lower side surface and can be used for the end part of the valve core to pass through;
the space enclosed by the valve cap and the valve body forms a front cavity of the inner cavity of the valve body.
6. The bi-directional air pressure regulator valve of claim 1, wherein said air pressure regulator valve includes a first resilient member providing a reset capability for said valve spool and a second resilient member providing a reset capability for said valve seat.
7. The bi-directional air pressure regulator valve of claim 6 wherein said first resilient member acts between said valve seat and said valve spool; the second elastic component acts between the valve seat and the valve body;
the direction of the acting force of the first elastic component is opposite to the movement direction of the valve core;
the direction of the acting force of the second elastic component is opposite to the moving direction of the valve seat;
the first elastic member is located inside the second elastic member.
8. The two-way air pressure regulating valve according to claim 7,
the first elastic part is arranged around the valve core, one end of the first elastic part is abutted against the bottom surface of the valve seat, and the other end of the first elastic part is fixedly connected with the outer side wall of the valve core; or,
the valve core comprises a first base which is formed by outwards protruding around the peripheral surface of the outer side wall of the valve core;
the other end of the first elastic component is abutted against the first base.
9. The two-way air pressure regulating valve according to claim 7,
the second elastic component is arranged around the valve core, one end of the second elastic component is abutted against the bottom surface of the valve seat, and the other end of the second elastic component is fixedly connected with the inner side wall of the valve body; or,
the valve body also comprises a second base which is formed by outwards protruding the surface of the periphery of the inner side wall of the valve body;
the other end of the second elastic component is abutted against the second base.
10. The bi-directional air pressure regulating valve of claim 1, wherein said annular sealing ring has a rectangular cross-section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921796051.4U CN211259777U (en) | 2019-10-24 | 2019-10-24 | Two-way air pressure regulating valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921796051.4U CN211259777U (en) | 2019-10-24 | 2019-10-24 | Two-way air pressure regulating valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211259777U true CN211259777U (en) | 2020-08-14 |
Family
ID=71981956
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921796051.4U Active CN211259777U (en) | 2019-10-24 | 2019-10-24 | Two-way air pressure regulating valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211259777U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113108403A (en) * | 2021-04-27 | 2021-07-13 | 中铁建工集团有限公司 | Intelligent control smoke exhaust system and use method thereof |
-
2019
- 2019-10-24 CN CN201921796051.4U patent/CN211259777U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113108403A (en) * | 2021-04-27 | 2021-07-13 | 中铁建工集团有限公司 | Intelligent control smoke exhaust system and use method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112709849B (en) | Valve for pressure equalization and/or emergency venting of a container and container with a valve | |
| US6685062B1 (en) | Dispenser pump | |
| US20150090548A1 (en) | Cylinder device and manufacturing method therefor | |
| US10861728B2 (en) | Vacuum adsorption unit and vacuum adsorption carrier | |
| JP5285547B2 (en) | Cell phone clock | |
| US20170220054A1 (en) | Pressure balance valve of internal retention structure | |
| CN110741195A (en) | Vent with pressure reducing valve | |
| JP5466984B2 (en) | safety valve | |
| US8667982B2 (en) | Air valve device for an inflatable article | |
| US9188139B2 (en) | Accumulator | |
| KR101346545B1 (en) | Gas container Valve for preventing gas explosion and its assembly method | |
| CN211259777U (en) | Two-way air pressure regulating valve | |
| JP2014005856A (en) | Two way valve | |
| KR101525363B1 (en) | Safety valve for a transformer | |
| US10041601B2 (en) | Valve device | |
| CN216242528U (en) | Explosion-proof valve | |
| CN211911300U (en) | Pressure limiting valve and micro-pressure cooker | |
| JP5311475B2 (en) | Liquid discharge pump | |
| CN210646928U (en) | Backflow prevention structure of spray gun | |
| JP7190807B2 (en) | ejector | |
| CN218094007U (en) | Nitrogen spring with good sealing performance | |
| CN111720594A (en) | One-way valve with pressure relief protection function | |
| CN214409543U (en) | Camera module | |
| CN212377352U (en) | Electromagnetic blowing valve | |
| CN111795033B (en) | Direct-acting overflow valve |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |