CN218377847U

CN218377847U - Elastic check valve

Info

Publication number: CN218377847U
Application number: CN202222806616.0U
Authority: CN
Inventors: 任富佳; 刘硕; 高少华; 郑强; 黄文才; 周海昕; 余国成
Original assignee: Hangzhou Robam Appliances Co Ltd
Current assignee: Hangzhou Robam Appliances Co Ltd
Priority date: 2022-10-25
Filing date: 2022-10-25
Publication date: 2023-01-24
Anticipated expiration: 2032-10-25

Abstract

The utility model provides an elasticity check valve relates to the technical field of check valve. An elastic check valve comprises an elastic valve body which can enable air flow to pass through, wherein a check valve base is arranged at one end of the elastic valve body, and a check valve connector is arranged at the other end of the elastic valve body. The elastic check valve can be adjusted according to the position of a cabinet or a wall, and is convenient to install in a narrow space.

Description

Elastic check valve

Technical Field

The utility model relates to a technical field of check valve particularly, relates to an elasticity check valve.

Background

The lampblack absorber width size of some models on the current market is less, and if certain model cigarette machine thickness is 180mm, compare in the thickness in wind channel, the space of reserving the check valve installation is comparatively narrow, and current check valve makes for the rigid material, leads to the check valve to be difficult to install. Meanwhile, because the installation space of the check valve is limited, the structural design of the check valve is limited, and the flow passage of the check valve is not smooth, so that the resistance of the check valve is large.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an elasticity check valve can be according to the position adjustment form of cupboard or wall, is convenient for install at narrow and small space.

The embodiment of the utility model is realized like this:

the embodiment of the application provides an elasticity check valve, including the elasticity valve body that can make the air current pass through, the one end of elasticity valve body is equipped with the check valve base, and the other end of elasticity valve body is equipped with the check valve interface.

In some embodiments of the present invention, an inflatable inflating chamber is disposed in the elastic valve body.

In some embodiments of the present invention, the elastic valve body is further provided with an inflation sealing port for inflating the inflation chamber, and the inflation chamber is communicated with the outside of the elastic valve body through the inflation sealing port.

In some embodiments of the present invention, the inflation seal is a hot melt sealing material.

The utility model discloses an in some embodiments, the elasticity valve body includes the internal diameter changeover portion that is close to the check valve base and the internal diameter expansion section that is close to the check valve interface, and the increase ratio of internal diameter changeover portion internal diameter and height is greater than the increase ratio of internal diameter expansion section internal diameter and height.

The utility model discloses an in some embodiments, the check valve base is equipped with the sealed boss of being convenient for to be connected with the elasticity valve body, elasticity valve body and sealed boss fixed connection.

In some embodiments of the present invention, the elastic valve body is connected to the check valve base by hot melt pressing.

The utility model discloses an in some embodiments, the check valve interface is equipped with the connection boss of being convenient for to be connected with the elasticity valve body, elasticity valve body and connection boss fixed connection.

In some embodiments of the present invention, the elastic valve body is connected to the check valve interface by hot melt pressing.

In some embodiments of the present invention, the elastic valve body is made of rubber.

Compared with the prior art, the embodiment of the utility model has following advantage or beneficial effect at least:

1. this elasticity valve body can be in compression state before the installation, reduces the required packing box volume of elasticity check valve, has promoted conveying efficiency.

2. The shape can be adjusted according to the position of the cabinet or the wall, and the problem that the traditional rigid check valve is easily limited by the distance between the wall and the cabinet when being installed is avoided.

3. The elastic valve body can deform along with the main flowing direction of the fluid to enable a flow channel of the elastic check valve to be better matched with the fluid, and therefore the flowing efficiency of the fluid is improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is an exploded view of an elastic check valve according to the present invention;

FIG. 2 is a schematic cross-sectional view of an elastic check valve according to the present invention;

fig. 3 is a schematic cross-sectional structural view of an elastic valve body of an elastic check valve according to the present invention;

FIG. 4 is a schematic cross-sectional view of an elastic check valve according to the present invention;

FIG. 5 is a schematic view of a check valve seat of an elastic check valve according to the present invention;

fig. 6 is a schematic structural view of the elastic check valve of the present invention, in which the elastic valve body is engaged with the connecting boss;

fig. 7 is a schematic diagram illustrating the change of the inner diameter of the elastic valve body and the inner diameter of the prototype check valve according to the present invention.

Icon: 1-elastic valve body, 100-inflation bin, 101-inner diameter expansion section, 102-inner diameter transition section, 103-inflation sealing port, 2-check valve base, 201-sealing boss, 3-check valve interface and 301-connecting boss.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

As shown in fig. 1 to 7, the present embodiment provides an elastic check valve, which includes an elastic valve body 1 capable of allowing an air flow to pass through, a check valve seat 2 is disposed at one end of the elastic valve body 1, and a check valve port 3 is disposed at the other end of the elastic valve body 1.

In practical use, the elastic valve body 1 may be a tube-like structure with two through ends, and the elastic valve body 1 includes a flow passage through which fluid can flow from one end of the elastic valve body 1 (the mounting end of the check valve seat 2) to the other end of the elastic valve body 1 (the mounting end of the check valve interface 3). Check valve interface 3 or check valve base 2 can be equipped with the check board that one-way opening and shutting, and the check valve of being convenient for realizes fluidic one-way the switching on.

In this embodiment, elasticity valve body 1 can adopt elasticity PVC material, compares the valve body of stereoplasm in prior art, and this elasticity valve body 1 can be in compression state before the installation in this embodiment, reduces the required packing box volume of elasticity check valve, has promoted the conveying efficiency, when using, only needs to take out the elasticity check valve in the packing box and recovers and can use. When the check valve is actually installed, the elastic valve body 1 has certain elasticity, the shape can be adjusted according to the position of a cabinet or a wall, and the problem that the traditional rigid check valve is easily limited by the distance between the wall and the cabinet when being installed is avoided.

Meanwhile, in the embodiment, the elastic valve body 1 can deform along with the main flowing direction of the fluid to a certain extent, so that the matching between the flow channel of the elastic check valve and the fluid is better, and the flowing efficiency of the fluid is improved.

In some embodiments of the present embodiment, an inflatable inflating chamber 100 is disposed inside the elastic valve body 1.

In the above embodiment, during production or use, the inflation amount in the inflation chamber 100 can be selected according to the actual use condition, and the higher the air pressure in the inflation chamber 100 is, the larger the force required for the elastic deformation of the elastic valve body 1 is.

In some embodiments of the present embodiment, the elastic valve body 1 is further provided with an inflation sealing port 103 for inflating the inflation chamber 100, and the inflation chamber 100 communicates with the outside of the elastic valve body 1 through the inflation sealing port 103.

In the above embodiment, the inflation seal port 103 may be an inflation port with a sealing plug. The inflatable sealing port 103 is arranged on the outer wall of the elastic valve body 1, so that the inflatable sealing port 103 is prevented from being arranged in a flow channel of the elastic valve body 1, and the influence of the inflatable sealing port 103 on the fluid flow efficiency is reduced.

The inflatable sealing port 103 is convenient for inflating the inflatable bin 100, and the inflatable sealing port 103 is also convenient for adjusting the air pressure in the inflatable bin 100. When the elastic check valve is not installed, the air in the inflatable chamber 100 is not sealed or the air in the inflatable chamber 100 is less, so that the elastic check valve is in a contracted state. When the elastic check valve is needed, the inflating bin 100 can be inflated, the inflating seal port 103 is sealed after the inflating bin 100 is inflated, air is filled in the inflating bin 100 at the moment, the inflating bin 100 is a sealed space, and the elastic check valve can work normally.

In some embodiments of the present embodiment, the inflation sealing port 103 is made of a hot melt sealing material.

In the above embodiment, after the air is inflated into the air inflation chamber 100, the air inflation sealing port 103 can be directly sealed by adopting a hot melting method, and the hot melting method can further improve the sealing performance of the air inflation sealing port 103 and the air inflation chamber 100.

In some embodiments of the present embodiment, the elastic valve body 1 includes an inner diameter transition section 102 near the check valve base 2 and an inner diameter expansion section 101 near the check valve port 3, and the inner diameter transition section 102 has a larger ratio of increase of the inner diameter to the height than the ratio of increase of the inner diameter to the height of the inner diameter expansion section 101.

In the above-described embodiment, the increase ratio of the inner diameter to the height corresponds to the ratio of the amount of change in the inner diameter to the amount of change in the height, and the larger the increase ratio of the inner diameter to the height, the faster the cross-sectional area of (the flow passage) embodying the check valve increases, and the smaller the increase ratio of the inner diameter to the height, the slower the cross-sectional area of (the flow passage) embodying the check valve increases.

As shown in fig. 7, in practical use, in the case where the inlet and outlet cross-sectional areas of (the flow channel of) the existing prototype check valve and (the flow channel of) the elastic check valve are consistent, the increase ratio of the inner diameter to the height in the initial stage of the existing prototype check valve is relatively consistent, and the increase curve of the inner diameter (corresponding to the cross-sectional area) is relatively gentle, so that when the subsequent cross-section is transited to the outlet position of the flow channel with the diameter of 180mm, the increase ratio of the inner diameter to the height is changed, which easily causes the decrease of the flow efficiency.

In contrast, in the (flow channel of the) elastic check valve of the present embodiment, the increase ratio of the inner diameter to the height of the (pneumatic) check valve in the inner diameter transition section 102 (initial stage of the flow channel) is relatively large (the sectional area of the stage is rapidly increased) compared to the (flow channel of the) original check valve. Specifically, the cross-sectional area of the flow channel is rapidly increased, which means that the flow channel is enlarged, so that the high-speed airflow impact loss can be reduced when fluid enters the elastic check valve, the turbulent kinetic energy is reduced, and further the pneumatic noise is reduced. The inner diameter transition section 102 of the inflatable check valve enters the inner diameter expansion section 101 after passing, the increase ratio of the inner diameter to the height of the inner diameter expansion section 101 is smaller (the inner diameter transition section 102), the change of the cross-sectional area tends to be smooth, and the reduction of the flow efficiency caused by turbulent flow and higher speed gradient of airflow due to sudden change of the cross-sectional area (like the traditional prototype check valve) is reduced.

In comparison, compared with the flow channel of the prior prototype check valve, the change point of the increase ratio of the inner diameter to the height of the flow channel of the elastic check valve is closer to the inlet of the flow channel, and the change of the increase ratio of the inner diameter to the height is larger, so that the flow efficiency of the fluid is improved.

In some embodiments of the present embodiment, the check valve base 2 is provided with a sealing boss 201 for facilitating connection with the elastic valve body 1, and the elastic valve body 1 is fixedly connected with the sealing boss 201.

In the above embodiment, the sealing boss 201 protrudes from the check valve seat 2, so that the contact area between the check valve seat 2 and the elastic valve body 1 is increased, and the reliability of connection between the elastic valve body 1 and the check valve seat 2 is improved.

In some embodiments of the present embodiment, the elastic valve body 1 and the check valve seat 2 are connected by hot-melt pressing.

In the above embodiment, the reliability of the connection of the elastic valve body 1 and the check valve seat 2 is further improved.

In some embodiments of the present embodiment, the check valve port 3 is provided with a connection boss 301 for facilitating connection with the elastic valve body 1, and the elastic valve body 1 is fixedly connected with the connection boss 301.

In the above embodiment, the connection boss 301 protrudes from the check valve interface 3, so that the contact area between the check valve interface 3 and the elastic valve body 1 is increased, and the connection reliability between the elastic valve body 1 and the check valve interface 3 is improved.

In some embodiments of the present embodiment, the elastic valve body 1 and the check valve port 3 are connected by hot-melt pressing.

In the above embodiment, the reliability of the connection of the elastic valve body 1 and the check valve interface 3 is further improved.

In some embodiments of the present embodiment, the elastic valve body 1 is made of a rubber material.

In the above embodiment, the rubber material is elastic at room temperature, and is advantageous for manufacturing the elastic valve body 1. Meanwhile, when the elastic valve body 1 is made of rubber materials or PVC materials, the production cost can be reduced.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An elastomeric check valve characterized by: the air flow check valve comprises an elastic valve body (1) capable of enabling air flow to pass through, wherein a check valve base (2) is arranged at one end of the elastic valve body (1), and a check valve connector (3) is arranged at the other end of the elastic valve body (1).

2. A resilient check valve in accordance with claim 1, wherein: an inflatable inflating bin (100) is arranged in the elastic valve body (1).

3. A resilient check valve in accordance with claim 2, wherein: the elastic valve body (1) is also provided with an inflation sealing opening (103) for inflating the inflation bin (100), and the inflation bin (100) is communicated with the outer side of the elastic valve body (1) through the inflation sealing opening (103).

4. A resilient check valve in accordance with claim 3, wherein: the air inflation sealing port (103) adopts hot melt sealing material.

5. The elastomeric check valve of claim 1, wherein: the elastic valve body (1) comprises an inner diameter transition section (102) close to the check valve base (2) and an inner diameter expansion section (101) close to the check valve interface (3), and the increase ratio of the inner diameter to the height of the inner diameter transition section (102) is larger than the increase ratio of the inner diameter to the height of the inner diameter expansion section (101).

6. The elastomeric check valve of claim 1, wherein: the check valve base (2) is provided with a sealing boss (201) which is convenient to be connected with the elastic valve body (1), and the elastic valve body (1) is fixedly connected with the sealing boss (201).

7. An elastic check valve according to claim 1 or 6, characterized in that: the elastic valve body (1) is connected with the check valve base (2) by hot melting pressing.

8. The elastomeric check valve of claim 1, wherein: the check valve interface (3) is provided with a connecting boss (301) which is convenient to be connected with the elastic valve body (1), and the elastic valve body (1) is fixedly connected with the connecting boss (301).

9. An elastic check valve according to claim 1 or 8, characterized in that: the elastic valve body (1) is connected with the check valve interface (3) by hot melting pressing.

10. An elastic check valve according to claim 1 or 2, characterized in that: the elastic valve body (1) is made of rubber materials.