CN213393701U

CN213393701U - Case, distributed exhaust valve and manual switch

Info

Publication number: CN213393701U
Application number: CN202021044180.0U
Authority: CN
Inventors: 张海涛; 李强
Original assignee: LANGFANG JINSESHIGUANG TECHNOLOGY Ltd
Current assignee: Anwen Technology Group Co.,Ltd.
Priority date: 2020-06-09
Filing date: 2020-06-09
Publication date: 2021-06-08
Anticipated expiration: 2030-06-09

Abstract

The application discloses case includes: the core body and the water conservancy diversion structure of setting on the core body. A distributed exhaust valve, including a case, still includes: the valve comprises a valve body and a cavity which is arranged in the valve body and runs through; the core body is arranged in the cavity, an elastic body is arranged between the valve body and the core body, and the valve core can axially move along the cavity. The application also discloses manual switch, including distributed discharge valve, still include: a switch body. This application enables the air current and steadily passes through from the water conservancy diversion structure, makes gaseous stable discharge, reduces the vibrations of case, guarantees that the case does not have the lateral deviation, has also eliminated the abnormal sound simultaneously.

Description

Case, distributed exhaust valve and manual switch

Technical Field

The present disclosure relates generally to the field of pneumatic switch technology, and more particularly to a valve cartridge, a distributed exhaust valve, and a manual switch.

Background

In seats, furniture and bedding, comfort arrangements are often used, typically using distributed exhaust valves in conjunction with an inflator pump to control the inflation or deflation of the air bags so that the seat, furniture and bedding can be adjusted in angle or height; however, in the prior art, due to instability of gas flow, the valve core of the distributed exhaust valve may vibrate and shift, resulting in noise inside the distributed exhaust valve, which affects the use feeling of users and may cause damage to the valve core.

Disclosure of Invention

In view of the above-identified deficiencies or inadequacies in the prior art, it would be desirable to provide a valve cartridge, a distributed vent valve, and a manual switch.

A valve cartridge, comprising: the core body and the water conservancy diversion structure of setting on the core body.

According to the technical scheme provided by the embodiment of the application, the flow guide structure comprises: and the plurality of guide grooves are axially arranged on the core body.

According to the technical scheme provided by the embodiment of the application, the flow guide structure further comprises: the plurality of flow guide holes are axially arranged on the core body.

According to the technical scheme provided by the embodiment of the application, the diversion trenches are annularly arrayed on the core body; the diversion trench is provided with two or more diversion trenches.

A distributed exhaust valve, including a case, still includes: the valve comprises a valve body and a cavity which is arranged in the valve body and runs through; the core body is arranged in the cavity, an elastic body is arranged between the valve body and the core body, and the valve core can axially move along the cavity.

According to the technical scheme provided by the embodiment of the application, the axial length of the valve core is one time or more than one time of the radial diameter.

According to the technical scheme that this application embodiment provided, the valve body include the upper cover and with the inferior valve that the upper cover is connected, the guiding gutter sets up the one end that is close to the inferior valve relatively on the core.

According to the technical scheme provided by the embodiment of the application, the elastic body is a spring.

According to the technical scheme provided by the embodiment of the application, a sealing ring is arranged between the upper cover and the core body.

A manual switch comprising a distributed exhaust valve, further comprising: a switch body; the distributed exhaust valve is arranged in the switch body; still be equipped with in the switch body: the air inlet and the air outlet are communicated with the air channel, and the control switch is used for controlling the inflation valve and the distributed exhaust valve.

To sum up, above-mentioned technical scheme of this application is through setting up the case that has the guiding gutter and the distributed exhaust valve who has this case, enables the air current and steadily passes through from the guiding gutter, makes gaseous stable the discharge, reduces the vibrations of case, guarantees that the case does not have the lateral deviation, has also eliminated the abnormal sound simultaneously, has guaranteed user's use and has felt.

Drawings

Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings in which:

fig. 1-4 are schematic structural views of the valve core in the present application.

FIG. 5 is a schematic view of a distributed exhaust valve according to the present application;

fig. 6 is a schematic structural diagram of a manual switch in the present application.

Reference numbers in the figures: 1. a core body; 2. a diversion trench; 3. a valve body; 4. a cavity; 5. an upper cover; 6. a lower case; 7. an elastomer; 8. a seal ring; 9. a flow guide hole; 10. a switch body; 11. an air inlet; 12. and an air outlet.

Detailed Description

The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and not restrictive of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.

Example one

A valve cartridge, comprising: the air-conditioning unit comprises a core body 1 and a flow guide structure arranged on the core body 1.

In order to further optimize the above technical solution, the technical solution is preferably further provided with the following improvements: the flow guide structure comprises: and a plurality of guide grooves 2 are axially arranged on the core body 1.

In order to further optimize the above technical solution, the technical solution is preferably further provided with the following improvements: the flow guide structure further comprises: and a plurality of flow guide holes 9 are axially arranged on the core body 1.

As shown in fig. 1 and 2, when the gas passes through the core body 1, due to the addition of the plurality of flow guide grooves 2 and the plurality of flow guide holes 9, the gas flow can stably pass through the flow guide grooves 2 and the plurality of flow guide holes 9, so that the gas is stably discharged, the vibration of the valve core is reduced, the valve core is ensured not to laterally shift, abnormal sound is eliminated, and the use feeling of a user is ensured.

In order to further optimize the above technical solution, the technical solution is preferably further provided with the following improvements: the diversion trenches 2 are annularly arrayed on the core body 1; the diversion trench 2 is provided with two or more diversion trenches.

As shown in fig. 1 to 4, the guide groove 2 may be provided in plural and symmetrical to the spool axis.

Example two

A distributed exhaust valve comprises the valve core and further comprises: the valve comprises a valve body 3 and a cavity 4 which is arranged inside the valve body 3 and runs through; the core body 1 is arranged in the cavity 4, the elastic body 7 is arranged between the valve body 3 and the core body 1, and the valve core can move axially along the cavity 4.

In order to further optimize the above technical solution, the technical solution is preferably further provided with the following improvements: the axial length of the valve core is one time or more than one time of the radial diameter.

In order to further optimize the above technical solution, the technical solution is preferably further provided with the following improvements: the valve body 3 comprises an upper cover 5 and a lower shell 6 connected with the upper cover 5, and the diversion trench 2 is arranged at one end, close to the lower shell 6, of the core body 1.

In order to further optimize the above technical solution, the technical solution is preferably further provided with the following improvements: the elastic body 7 is a spring.

In order to further optimize the above technical solution, the technical solution is preferably further provided with the following improvements: and a sealing ring 8 is arranged between the upper cover 5 and the core body 1.

As shown in fig. 5, when gas flows between the core 1 and the valve body 3, the guide grooves 2 allow the gas to be stably discharged, preventing the core 1 from being laterally displaced.

In actual use, the clearance between the lower end of the valve core and the lower shell is often very small, the shaking amount of the valve core in the cavity can be reduced, the total exhaust area of the air passage can be properly enlarged by making up the reduced clearance area with a flow guide structure, and the exhaust speed and the gas outflow speed are reduced by increasing the axial length of the valve core; and the length of the flow guide structure is properly increased, so that the airflow is stable before being discharged into the air, and the distributed arrangement is favorable for the approximate stability of the air pressure of the air around the core body and the reduction of the shaking between the valve core and the cavity.

A manual switch comprising a distributed exhaust valve, further comprising: a switch body 10; the distributed exhaust valve is arranged in the switch body 10; the switch body 10 is further provided with: the air supply system comprises an inflation valve, an air channel communicated with the inflation valve and the distributed exhaust valve, an air inlet 11 and an air outlet 12 communicated with the air channel, and a control switch for controlling the inflation valve and the distributed exhaust valve. Illustrated in fig. 6 are two manual switches.

In the prior art, the distributed exhaust valve is usually matched with an inflator pump and an air bag for controlling seats, furniture, bedding and the like, and particularly in the field of pneumatic control of automobile seats, a manual switch is often required, as shown in fig. 6, and the overflow exhaust principle of the manual switch is as follows:

the first step is as follows: when the air inlet pressure P is equal to the atmospheric pressure, the control switch is pressed, air enters the switch body through the air inlet (11) and then is transmitted to the air bag through the air outlet (12), and when the air pressure P1 in the air bag is less than the opening pressure P2, the distributed exhaust valve is not opened, and exhaust action and exhaust noise do not exist.

The second step is that: when P1 is not less than P2, that is, the air pressure in the air bag is greater than the set value, the distributed exhaust valve overcomes the elasticity of the spring and performs the exhaust action through the diversion structure 3. At this point, the inflation continues, and the pressure within the bag continues to rise to produce a saturated peak pressure P3 (P1 — P3).

The third step: after the inflation is stopped, the air bag internal pressure P3 gradually decays to the distributed exhaust valve pressure maintaining value P4.

Therefore, the flow guide structure is arranged on the valve core, so that the vibration of the valve core is reduced, the speed of air flow is stabilized, the noise can be effectively reduced, and the comfort level is improved.

The above description is only a preferred embodiment of the application and is illustrative of the principles of the technology employed. It will be appreciated by a person skilled in the art that the scope of the invention as referred to in the present application is not limited to the embodiments with a specific combination of the above-mentioned features, but also covers other embodiments with any combination of the above-mentioned features or their equivalents without departing from the inventive concept. For example, the above features may be replaced with (but not limited to) features having similar functions disclosed in the present application.

Claims

1. A valve cartridge, characterized by: the method comprises the following steps: the flow guide structure comprises a core body (1) and a flow guide structure arranged on the core body (1); the flow guide structure comprises: a plurality of flow guide grooves (2) axially arranged on the core body (1) and/or a plurality of flow guide holes (9) axially arranged on the core body (1).

2. A valve cartridge according to claim 1, wherein: the flow guide grooves (2) are annularly arrayed on the core body (1); the flow guide grooves (2) are two or more.

3. A distributed exhaust valve is characterized in that: a valve cartridge comprising any of claims 1-2, further comprising: the valve comprises a valve body (3) and a cavity (4) which is arranged in the valve body (3) and runs through; the valve is characterized in that the core body (1) is arranged in the cavity (4), an elastic body (7) is arranged between the valve body (3) and the core body (1), and the valve core can axially move along the cavity (4).

4. A distributed exhaust valve according to claim 3 wherein: the axial length of the valve core is one time or more than one time of the radial diameter.

5. A distributed exhaust valve according to claim 3 wherein: the valve body (3) comprises an upper cover (5) and a lower shell (6) connected with the upper cover (5), and the diversion trench (2) is arranged at one end, close to the lower shell (6), of the core body (1) relatively.

6. A distributed exhaust valve according to claim 3 wherein: the elastic body (7) is a spring.

7. A distributed bleed valve as in claim 5, wherein: and a sealing ring (8) is arranged between the upper cover (5) and the core body (1).

8. A manual switch, characterized by: the distributed exhaust valve of any of claims 3 to 7, further comprising: a switch body (10); the distributed exhaust valve is arranged in the switch body (10); the switch body (10) is also provided with: the device comprises an inflation valve, a gas channel communicated with the inflation valve and the distributed exhaust valve, a gas inlet (11) and a gas outlet (12) communicated with the gas channel, and a control switch for controlling the inflation valve and the distributed exhaust valve.