Small inflation and deflation valve

Abstract

The utility model discloses a small inflation and deflation valve which comprises an upper installation body and a lower installation body, the upper installation body and the lower installation body are tightly attached to each other to form an inflation bag, and a vent valve communicated with the inflation bag in a one-way mode is arranged on the lower installation body. The upper mounting body and the lower mounting body are respectively provided with a strip-shaped first groove and a strip-shaped second groove, the first groove and the second groove form an air passage communicated with the inflatable bag, and a one-way ventilation device capable of realizing one-way communication between the inflatable bag and the air passage is arranged in the air passage. The sponge body is arranged on one side of the silica gel sheet, the characteristics of ventilation and certain elasticity of the sponge body are utilized, the silica gel sheet can be helped to recover deformation under the condition that the external pressure intensity is insufficient, and therefore the one-way ventilation effect of the one-way ventilation device is improved.

Description

Technical Field

[0001] The utility model relates to an air valve, in particular to a small-sized air charging and discharging valve. Background Art

[0002] At present, there are many inflatable products on the market, such as inflatable toys, swimming rings, inflatable pillows, inflatable mattresses and so on.

[0003] When inflating these products, special charging and discharging valves are required. Inflatable toys, swimming rings, inflatable pillows, and inflatable mattresses are all relatively large inflatable products. However, with the advancement of the times, some small or even micro products that need to be inflated have emerged. For example, on some new sports shoes or backpacks, hollow cavities are provided in the parts of these products that fit the human body. These cavities are filled with air. Their function is to reduce shock or make them more comfortable to wear. When inflating and deflation of these products, traditional charging and discharging valves are usually not used.

[0004] The utility model patent with publication number CN219954333U is the first generation design of the applicant. The principle is to set an air guide sheet (silicone sheet) in a small object to be inflated, such as a small cushioning air bag on the outer surface of a new type of footwear, or a small cushioning air bag inside a new type of children's school bag. The air guide sheet (silicone sheet) is deformed when it is inflated, thereby realizing the function of one-way air guidance.

[0005] Although the above scheme has a simple structure, it is mainly used for small objects that need to be inflated, such as small cushioning air bags inside new children's school bags and small cushioning air bags outside new sports shoes. Since the space that needs to be inflated is relatively small, it only relies on the air guide sheet (silicone sheet) for one-way conduction. As a result, the external pressure is insufficient after inflation to cause the air guide sheet to restore its deformation, making its one-way ventilation effect unsatisfactory. Utility Model Content

[0006] The utility model aims to overcome the disadvantages of the above-mentioned situation and to provide a small inflation and deflation valve, comprising an upper mounting body and a lower mounting body, wherein the upper mounting body and the lower mounting body are tightly fitted together to form an inflatable bag, a ventilation valve which is in one-way communication with the inflatable bag is arranged on the lower mounting body, and a first strip-shaped groove and a second strip-shaped groove are respectively arranged on the upper mounting body and the lower mounting body, wherein the first groove and the second groove form an air passage which is in one-way communication with the inflatable bag, and a one-way ventilation device which can enable one-way communication between the inflatable bag and the air passage is arranged in the air passage.

[0007] Furthermore, the one-way ventilation device includes an air duct and a cover covering the outer side of one end of the air duct away from the inflatable bag, a partition is arranged in the air duct, a ventilation hole is opened on the partition, a ventilation grille is arranged on the side of the cover away from the ventilation hole, a chamber is formed between the cover and the partition, and the chamber is filled with an air guide.

[0008] Furthermore, the air guide is closely attached to one side of the vent hole, and the air guide comprises an integrally formed sponge body and a silicone sheet, the silicone sheet is closely attached to the vent hole, and the sponge body is arranged on a side away from the vent hole.

[0009] Furthermore, the air guide comprises an integrally formed sponge body and a silicone sheet, a third groove is provided on a side of the sponge body close to the vent hole, the silicone sheet is provided in the third groove, and the silicone sheet is provided on one side of the vent hole.

[0010] Furthermore, the aperture of the ventilation hole is smaller than the aperture of the air guide tube.

[0011] Furthermore, an exhaust valve may be installed on the upper mounting body. The exhaust valve includes an exhaust channel, an operating rod, an air inlet and an exhaust port. The operating rod includes a spherical blocking portion and an operating portion. The blocking portion is used to block the exhaust port.

[0012] Furthermore, a sealing ring is installed on the lower installation body.

[0013] Furthermore, one end of the upper mounting body protrudes inward to form an elastic pressing portion.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] Compared with the prior art, in this field, for small objects that need to be inflated, such as the small cushioning airbags inside new children's backpacks and the small cushioning airbags outside new sports shoes, since the space that needs to be inflated is relatively small, only relying on the air guide sheet for one-way conduction, the external pressure is insufficient after inflation to cause the air guide sheet to restore its deformation, resulting in unsatisfactory one-way ventilation effect. The present application arranges a sponge on one side of the silicone sheet and utilizes the ventilation and certain elastic properties of the sponge to help the silicone sheet restore its deformation when the external pressure is insufficient, thereby improving the one-way ventilation effect of the present application.

[0016] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be understood through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0018] Figure 1 This is a schematic diagram of the overall structure of the small-sized air charging and discharging valve of the utility model;

[0019] Figure 2 This is an exploded view of the overall structure of the small-sized air charging and discharging valve of the utility model;

[0020] Figure 3 It is a structural schematic diagram of the upper mounting body of the small-sized air charging and discharging valve of the utility model;

[0021] Figure 4 This is a schematic structural diagram of a first embodiment of the air guide member of a small-sized air charging and discharging valve of the utility model;

[0022] Figure 5 This is a schematic structural diagram of a second embodiment of the air guide member of the small-sized air charging and discharging valve of the utility model;

[0023] Figure 6 This is a cross-sectional view of the air guide member of the small-sized air filling and discharging valve of the utility model using the first embodiment;

[0024] Figure 7 This is a cross-sectional view of the air guide member of the small-sized air charging and discharging valve of the utility model using the second embodiment.

[0025] The reference numerals and names in the figures are as follows:

[0026] The upper mounting body 100, the lower mounting body 200, the inflatable bag 300, the pressing portion 110, the ventilation valve 210, the first groove 120, the second groove 220, the air duct 400, the air guide tube 510, the cover 520, the partition 511, the ventilation hole 512, the ventilation grille 513, the chamber 514, the air guide 540, the sponge 541, the silicone sheet 542, the third groove 543, the exhaust valve 600, the exhaust channel 610, the operating rod 620, the air inlet 630, the exhaust port 640, the blocking portion 621, the operating portion 622, the connecting rod 623, and the sealing ring 230. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0028] The preferred implementation of the utility model is now further described in conjunction with the accompanying drawings. Figure 1-3 As shown, the small-sized inflation and deflation valve comprises an upper mounting body 100 and a lower mounting body 200, wherein the upper mounting body 100 and the lower mounting body 200 are closely attached to each other to form an inflation bag 300, one end of the upper mounting body 100 is convex inward to form an elastic pressing portion 110, a vent valve 210 which is unidirectionally connected to the inflation bag 300 is arranged on the lower mounting body 200, and a first strip-shaped groove 120 and a second strip-shaped groove 220 are respectively arranged on the upper mounting body 100 and the lower mounting body 200. When the upper mounting body 100 and the lower mounting body 200 are tightly fitted together, the first groove 120 and the second groove 220 form an air passage 400 connected to the air bag 300. The air passage 400 is used to connect an object to be inflated, such as a small cushioning air bag on the outer surface of some new shoes, or a small cushioning air bag inside some new children's school bags. A one-way ventilation device is provided in the air passage 400 to enable one-way conduction between the air bag 300 and the air passage 400.

[0029] On the basis of the above implementation, in combination with Figure 1-7 As shown, the one-way ventilation device includes an air duct 510 and a cover 520 covering the outer side of an end of the air duct 510 away from the air bag 300, a partition 511 is arranged in the air duct 510, a vent 512 is opened on the partition 511, and a ventilation grille 513 is arranged on the side of the cover 520 away from the vent 512. When the cover 520 covers the end of the air duct 510 away from the air bag 300, a chamber 514 is formed between the cover 520 and the partition 511, and the chamber 514 is filled with an air guide 540.

[0030] On the basis of the above-mentioned embodiment, the air guide 540 is closely attached to one side of the vent hole 512. The air guide 540 includes an integrally formed sponge 541 and a silicone sheet 542. The silicone sheet 542 is closely attached to the vent hole 512. The sponge 541 is arranged on a side away from the vent hole 512. When inflation is required, the gas enters the inflatable bag 300 through the one-way vent valve 210. The user compresses the inflatable bag 300 by squeezing the pressing portion 110, so that the gas in the inflatable bag 300 enters the chamber 514 through the vent hole 512 of the airway 400. Due to the silicone sheet of the air guide 540 542 is tightly attached to one side of the vent 512, so when the gas passes through the vent 512, the silicone sheet 542 and the sponge 541 will be deflected and deformed, so that the gas can flow out of the ventilation grille 513 through the chamber 514. When the user stops compressing the inflatable bag 300, since the external air pressure is greater than the internal air pressure of the inflatable bag 300, and since the sponge 541 has a certain elasticity and is ventilated, the external air pressure and the elasticity of the sponge 541 will cause the silicone sheet 542 to recover from the deformation and cling to the vent 512 again, thereby forming a one-way conduction between the inflatable bag 300 and the air duct 400. Compared with the prior art, in this field, for small objects that need to be inflated, such as the small cushioning airbags inside new children's backpacks and the small cushioning airbags outside new sports shoes, since the space that needs to be inflated is relatively small, only relying on the air guide sheet for one-way conduction, the external pressure is insufficient after inflation to cause the air guide sheet to restore its deformation, resulting in unsatisfactory one-way ventilation effect. The present application arranges a sponge 541 on one side of the silicone sheet 542, and utilizes the ventilation and certain elasticity of the sponge 541 to help the silicone sheet 542 restore its deformation when the external pressure is insufficient, thereby improving the one-way ventilation effect of the present application.

[0031] In addition, the present application also provides another embodiment of the air guide 540, such as Figure 6As shown, compared with the first embodiment, the difference is that a third groove 543 is provided on one side of the sponge body 541 of the air guide 540 near the vent hole 512, the silicone sheet 542 is arranged in the third groove 543, and the silicone sheet 542 is arranged on one side of the vent hole 512. When inflation is required, the gas enters the inflatable bag 300 through the one-way vent valve 210. The user compresses the inflatable bag 300 by squeezing the pressing portion 110, so that the gas in the inflatable bag 300 enters the chamber 514 through the vent hole 512 of the air passage 400. Since the silicone sheet 542 of the air guide 540 is closely attached to one side of the vent hole 512, when the gas passes through the vent hole 512, the silicone sheet 542 will be moved away from the vent hole 512. 12 direction, so that the gas can flow out from the sponge 541 around the silicone sheet 542 through the ventilation grille 513 of the chamber 514. When the user stops compressing the inflatable bag 300, since the external air pressure is greater than the internal air pressure of the inflatable bag 300, and since the sponge 541 has a certain elasticity and is ventilated, the external air pressure and the elasticity of the sponge 541 will cause the silicone sheet 542 to be tightly attached to the vent 512 again. Compared with the first embodiment, the silicone sheet 542 is no longer required to be deflected and deformed, but moves in the third groove 543, thereby completely avoiding the problem that the material of the silicone sheet 542 may age after long-term use, resulting in poor deformation efficiency, thereby affecting the ventilation efficiency.

[0032] On the basis of the above two embodiments, further, the aperture of the vent hole 512 is smaller than the aperture of the air duct 510, so that when the air in the inflatable bag 300 passes through the air duct 510 and the vent hole 512, it will be compressed, thereby generating a deformation force or thrust on the silicone sheet 542 that is closely attached to the vent hole 512 or arranged on one side of the vent hole 512.

[0033] Preferably, Figure 1 As shown, an exhaust valve 600 can also be installed on the upper mounting body 100, and the exhaust valve 600 includes an exhaust channel 610, an operating rod 620, an air inlet 630 and an exhaust port 640. The operating rod 620 includes a spherical blocking portion 621 and an operating portion 622. The blocking portion 621 is used to block the exhaust port 640. The blocking portion 621 and the operating portion 622 are connected by a connecting rod 623. Under normal circumstances, the blocking portion 621 blocks the exhaust port 640. When exhaust is needed, pressing down the operating portion 622 causes the blocking portion 621 to move downward away from the exhaust port 640, so that it cannot block the exhaust port 640. At this time, the air flows into the exhaust port 640 through the air inlet 630 and the exhaust channel 610, flows through the exhaust channel 610, and then flows out through the exhaust port 640, and then stops pressing down the operating portion 622. The operating portion 622 returns to its original position, and the blocking portion 621 blocks the exhaust port 640 again, and exhaust stops.

[0034] Preferably, a sealing ring 230 is installed on the lower installation body 200 . When the upper installation body 100 and the lower installation body 200 are assembled together, the sealing ring 230 can further improve the airtightness of the inflatable bag 300 .

[0035] The above exemplary embodiments are detailed, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is limited by the appended claims rather than the above description, so it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention.

Claims

1. Small filling and discharging valve, characterized in that: The invention comprises an upper mounting body (100) and a lower mounting body (200), wherein the upper mounting body (100) and the lower mounting body (200) are closely attached to each other to form an inflatable bag (300), wherein a vent valve (210) which is in one-way communication with the inflatable bag (300) is arranged on the lower mounting body (200), wherein a first strip-shaped groove (120) and a second strip-shaped groove (220) are respectively arranged on the upper mounting body (100) and the lower mounting body (200), wherein the first groove (120) and the second groove (220) form an air passage (400) which is in one-way communication with the inflatable bag (300), and wherein a one-way vent device which is capable of enabling one-way communication between the inflatable bag (300) and the air passage (400) is arranged in the air passage (400).

2. The small-sized gas filling and discharging valve according to claim 1, characterized in that: The one-way ventilation device comprises an air guide tube (510) and a cover (520) covering the outer side of an end of the air guide tube (510) away from the inflatable bag (300); a partition (511) is arranged in the air guide tube (510); a ventilation hole (512) is opened on the partition (511); a ventilation grille (513) is arranged on a side of the cover (520) away from the ventilation hole (512); a chamber (514) is formed between the cover (520) and the partition (511); and the chamber (514) is filled with an air guide (540).

3. The small-sized gas filling and discharging valve according to claim 2, characterized in that: The air guide (540) is closely attached to one side of the vent hole (512), and the air guide (540) comprises an integrally formed sponge body (541) and a silicone sheet (542), the silicone sheet (542) is closely attached to the vent hole (512), and the sponge body (541) is arranged on a side away from the vent hole (512).

4. The small-sized air filling and discharging valve according to claim 2, characterized in that: The air guide (540) comprises an integrally formed sponge body (541) and a silicone sheet (542); a third groove (543) is provided on a side of the sponge body (541) close to the vent hole (512); the silicone sheet (542) is arranged in the third groove (543); and the silicone sheet (542) is arranged on one side of the vent hole (512).

5. The small-sized air filling and discharging valve according to any one of claims 3 or 4, characterized in that: The aperture of the ventilation hole (512) is smaller than the aperture of the air guide tube (510).

6. The small-sized air filling and discharging valve according to claim 1, characterized in that: An exhaust valve (600) may also be installed on the upper mounting body (100), the exhaust valve (600) comprising an exhaust passage (610), an operating rod (620), an air inlet (630) and an exhaust port (640), the operating rod (620) comprising a spherical blocking portion (621) and an operating portion (622), the blocking portion (621) being used to block the exhaust port (640).

7. The small-sized gas filling and discharging valve according to claim 1, characterized in that: A sealing ring (230) is installed on the lower installation body (200).

8. The small-sized air filling and discharging valve according to claim 1, characterized in that: One end of the upper mounting body (100) protrudes inwards to form a pressing portion (110) with elasticity.

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