CN210484725U

CN210484725U - Air valve for inflation and deflation

Info

Publication number: CN210484725U
Application number: CN201921003650.6U
Authority: CN
Inventors: 李晓俊; 范者新; 汪召吾
Original assignee: Dongguan Yuanxiang Electronic Technology Co ltd
Current assignee: Dongguan Yuanxiang Electronic Technology Co ltd
Priority date: 2019-07-01
Filing date: 2019-07-01
Publication date: 2020-05-08
Anticipated expiration: 2029-07-01

Abstract

The utility model relates to a gas valve for inflation and deflation, which comprises an inflation head, a valve cover, a valve core, a fixing ring, a valve body, a sealing ring, a first reset spring, a sealing gasket support and a tail cover, wherein one end of the inflation head is communicated with an inflation device through a connecting pipe, the other end of the inflation head is inserted into the valve cover, the valve core is fixedly connected inside the valve cover, the fixing ring is in threaded connection with the valve body, an upper chamber, a middle chamber and a lower chamber are sequentially arranged inside the valve body from top to bottom, the first reset spring is arranged in the upper chamber, the sealing gasket and the sealing gasket support are arranged in the lower chamber, the sealing gasket is inserted into the sealing gasket support, the tail cover is fixedly connected at the lower end of the valve body, when inflation is carried out, external gas enters the gas valve through the inflation head to jack the sealing gasket, and then enters an inner chamber of an, the whole structure is simple in design, convenient to use, quick in inflation and deflation, and capable of meeting requirements of various inflatable products.

Description

Air valve for inflation and deflation

Technical Field

The utility model relates to an air valve field, concretely relates to fill dual-purpose air valve of gassing.

Background

Along with the improvement of living standard, more and more inflatable products such as inflatable pillows, inflatable toys, inflatable massagers and other articles appear in people's lives, air valves are installed at openings of the inflatable products, when the inflatable products are inflated, an inflator pump or other air source devices flush air into the products through the air valves, so that the products are full and can be normally used, the use of the products is directly influenced by the quality of the air valves, and the existing air valves have the defects that the air valves are complex in structure, time-consuming in production and assembly, inconvenient to inflate and deflate, easy to block and easy to deform under external force.

SUMMERY OF THE UTILITY MODEL

To the above-mentioned weak point of current pneumatic valve, the utility model provides a simple structure, convenient to use, fill dual-purpose pneumatic valve of filling, concrete technical scheme is as follows:

a gas valve for charging and discharging comprises an inflation head, a valve cover, a valve core, a fixing ring, a valve body, a sealing ring, a first reset spring, a sealing gasket support and a tail cover, wherein a gas inlet channel is arranged at the center of the inflation head, one end of the inflation head is communicated with an inflation device through a connecting pipe, the other end of the inflation head is inserted into the valve cover, the valve core is fixedly connected inside the valve cover, the fixing ring and the sealing ring are sleeved on the outer peripheral side of the valve core, the sealing ring is positioned between the fixing ring and a flange of the valve core, the fixing ring is in threaded connection with the valve body, an upper cavity, a middle cavity and a lower cavity are sequentially arranged inside the; the other end of the valve core is propped against the inner wall of the valve body, the tail part of the valve core can extend into the lower cavity from the middle cavity, a sealing gasket and a sealing gasket support are arranged in the lower cavity, the sealing gasket is inserted in the sealing gasket support, the lower end of the valve body is fixedly connected with a tail cover, and an air outlet channel is arranged in the center of the tail cover.

As an optimal scheme of the utility model, the valve gap passes through glue and the fixed bonding of case is integrative, and the valve body passes through glue or screw thread and the tail-hood is fixed integrative.

As an optimized proposal of the utility model, the left and right sides of the valve core are provided with glue injection holes.

As a preferred scheme of the utility model, sealed external diameter of filling up is greater than well cavity internal diameter and is less than cavity internal diameter down, and sealed pad support is equipped with the plane step, and the tail-hood left and right sides is equipped with the recess.

As an optimized proposal of the utility model, the tail part of the valve core is provided with a slot.

As an optimized proposal of the utility model, the front end of the inflation head is provided with a bulge, and the valve cover is made of soft rubber material.

As an optimized scheme of the utility model, sealed the pad and be equipped with the round pin axle that is used for cartridge sealing pad support.

As an optimized proposal of the utility model, the valve cover surface is provided with groove patterns.

As a preferred scheme of the utility model, a second return spring is arranged in the lower cavity, and one end of the second return spring is propped against the tail cover; the other end is against the gasket holder.

The utility model has the advantages that: the utility model discloses the pneumatic valve is when using to aerify, and outside gas is through pushing up the sealed pad of opening in the inflation head gets into the pneumatic valve, and it is inflated the product inner chamber to pass through the tail-hood entering again, aerify the completion back, only need extract the inflation head just can guarantee that gas can not expose, when will deflating, press the valve gap and finally make sealed pad push up open and emit gas, overall structure design is simple, convenient to use fills the gassing swift, satisfies various inflatable product demands.

Drawings

FIG. 1 is a diagram illustrating the usage of the present invention;

fig. 2 is a perspective view of the present invention viewed from the rear;

fig. 3 is an exploded view of the present invention;

fig. 4 is a top view of the present invention;

FIG. 5 is a sectional view taken along line A-A of FIG. 4;

fig. 6 is a sectional view taken in the direction B-B in fig. 4.

Detailed Description

The following description of the embodiments of the present invention will be made with reference to the accompanying drawings:

in the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the indicated position or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood as appropriate by those of ordinary skill in the art.

As shown in fig. 1 to 3, an air valve for inflation and deflation comprises an inflation head 1, a valve cover 2, a valve core 3, a fixing ring 4, a valve body 5, a sealing ring 6, a first return spring 7, a sealing gasket 8, a sealing gasket support 9 and a tail cover 10, wherein an air inlet channel is arranged at the center of the inflation head 1, one end of the inflation head 1 is communicated with an inflation device through a connecting pipe 11, the inflation device is an inflation pump or other air source device, the other end of the inflation head 1 is inserted into the valve cover 2, the valve cover 2 is fixedly connected with a valve core 3, a fixing ring 4 and a sealing ring 6 are sleeved on the outer peripheral side of the valve core 3, a valve core flange 31 is arranged in the middle of the valve core 3, the sealing ring 6 is positioned between the fixing ring 4 and the valve core flange, the fixing ring 4 is in threaded connection with a valve body 5, an upper chamber 51, a middle chamber 52 and a lower chamber 53 are sequentially arranged in the valve body 5 from top to bottom, a first return spring 7 is arranged in the upper chamber 51, and one end of the first return spring 7 is propped against the bottom of the; the other end of the valve body 5 is propped against the inner wall of the valve body, the tail part of the valve core 3 can extend into the lower chamber 53 from the middle chamber 32 to eject the sealing gasket, the sealing gasket 8 and the sealing gasket support 9 are arranged in the lower chamber 53, the lower chamber 53 is provided with a height enough for the movement of the sealing gasket 8 and the sealing gasket support 9, the sealing gasket 8 is inserted into the sealing gasket support 9, the lower end of the valve body 5 is fixedly connected with the tail cover 10, and the center of the tail cover 10 is provided.

Concretely, valve gap 2 is integrative through the fixed bonding of glue and case 3, valve body 5 is integrative through glue or screw thread and tail-hood 10 are fixed, and the case 3 left and right sides is equipped with injecting glue hole 32, accessible injecting glue hole 32 is filled glue, make case 3 and valve gap 2 reliably bond, in addition, sealed 8 external diameters are greater than well cavity 52 internal diameter and are less than the cavity 53 internal diameter down, sealed 8 external diameters are greater than well cavity 52 and guarantee that sealed 8 can block up well cavity 52 below opening, and sealed 8 external diameters are less than the cavity 53 internal diameter down and guarantee that gas can be at sealed 8 and the cavity 53 internal diameter clearance circulation down between the inner wall down, sealed pad support 9 is equipped with the plane step and increases the air flow, the tail-hood 10 left and right sides is equipped with the recess.

Specifically, 3 afterbody of case is equipped with the fluting, and after 3 pressurized contacts sealed 8 of case, sealed 8 of filling up is unlikely to stop up the venthole of case 3, in addition, inflates head 1 front end and is equipped with swell 1a, and valve gap 2 adopts the flexible glue material to make, and swell 1a can prevent to inflate the in-process and inflate the head and drop from valve gap 2.

Specifically, the sealing gasket 8 is provided with a pin shaft for inserting the sealing gasket support 9, and the pin shaft is in interference fit, so that the sealing gasket 8 has certain elasticity, can play a sealing role, has certain rigidity, and is not easy to deform under the action of external force, in addition, the surface of the valve cover 2 is provided with a groove pattern which can prevent the possibility of being sealed when the valve is pressed to release air, a second return spring (not shown) is arranged in the lower cavity 33, and one end of the second return spring is propped against the tail cover 10; the other end is propped against the sealing gasket support 9, and the second return spring drives the sealing gasket 8 to return.

The working principle is as follows: during inflation, the inflation device inflates air to the air inlet channel of the inflation head through the connecting pipe, the air reaches the middle chamber 52 through the valve core 3, the air pushes out the sealing gasket 8 to stop the middle chamber 52, and the air is filled into the inner cavity of the inflated product 12 through the air outlet channel of the lower chamber 53 and the tail cover 10; after the inflation is finished, the inflation head 1 is pulled out of the valve cover 2, and after the inflation head 1 is pulled out, the reaction force generated by the compressed air in the product cavity resets the sealing gasket 8 to be pressed against the middle cavity 52, so that the compressed air is sealed in the product cavity; when the gas is to be discharged, the middle part of the valve cover 2 is pressed, the valve cover 2 drives the valve core 3 to move downwards, the valve core 3 compresses the first return spring, after a certain stroke is pressed, the tail end of the valve core 3 extends into the lower cavity 53 from the middle cavity 52 to jack the sealing gasket 8, compressed air in the product cavity is released, and the purpose of gas discharge is achieved.

The above description is provided for the purpose of describing the present invention in more detail with reference to the preferred embodiments, and it should not be construed that the present invention is limited to these descriptions, and it will be apparent to those skilled in the art that the present invention can be implemented in many ways without departing from the spirit and scope of the present invention.

Claims

1. A gas valve for charging and discharging is characterized in that: the inflation valve comprises an inflation head, a valve cover, a valve core, a fixing ring, a valve body, a sealing ring, a first reset spring, a sealing gasket support and a tail cover, wherein an air inlet channel is arranged at the center of the inflation head; the other end of the valve core is propped against the inner wall of the valve body, the tail part of the valve core can extend into the lower cavity from the middle cavity, a sealing gasket and a sealing gasket support are arranged in the lower cavity, the sealing gasket is inserted in the sealing gasket support, the lower end of the valve body is fixedly connected with a tail cover, and an air outlet channel is arranged in the center of the tail cover.

2. The air valve for charging and discharging according to claim 1, characterized in that: the valve cover is fixedly bonded with the valve core into a whole through glue, and the valve body is fixedly bonded with the tail cover into a whole through glue or threads.

3. The air valve for charging and discharging according to claim 2, characterized in that: and glue injection holes are formed in the left side and the right side of the valve core.

4. The air valve for charging and discharging according to claim 1, characterized in that: the outer diameter of the sealing gasket is larger than the inner diameter of the middle cavity and smaller than the inner diameter of the lower cavity, the sealing gasket support is provided with a plane step, and the left side and the right side of the tail cover are provided with grooves.

5. The air valve for charging and discharging according to claim 1, characterized in that: the tail of the valve core is provided with a slot.

6. The air valve for charging and discharging according to claim 1, characterized in that: the front end of the inflation head is provided with a bulge, and the valve cover is made of soft rubber materials.

7. The air valve for charging and discharging according to claim 1, characterized in that: the sealing gasket is provided with a pin shaft for inserting the sealing gasket support.

8. The air valve for charging and discharging according to claim 1, characterized in that: the valve cover surface is provided with groove patterns.

9. The air valve for charging and discharging according to claim 1, characterized in that: a second return spring is arranged in the lower cavity, and one end of the second return spring is propped against the tail cover; the other end is against the gasket holder.