Pressing extraction valve

Abstract

The utility model discloses a pressing extraction valve which comprises a binding face, a first ventilation channel is arranged in the binding face, one end of the first ventilation channel is communicated with an air chamber, the air chamber is provided with an elastic pressing portion, and the end, away from the air chamber, of the first ventilation channel is communicated with a valve. The valve comprises a second ventilation channel used for communicating the interior and the exterior of an object needing air exhaust, and the two ends of the second ventilation channel are covered with a first one-way ventilation piece and a second one-way ventilation piece respectively. The air chamber and the valve are integrally designed through the first air duct and integrally attached to an object needing to be vacuumized, so that the air tightness is good after overall installation, in addition, an external air pipe is not needed, and the problem of air leakage possibly caused by the fact that the air pipe is externally connected with an air hole cannot be generated.

Description

Technical Field

[0001] The utility model relates to the field of air extraction valves, in particular to a press-type air extraction valve. Background Art

[0002] In daily life, we often encounter situations where we need to vacuum certain items. For example, when the seasons change, we need to put unused clothes and quilts into bags for storage. In southern my country, due to the humid environment, the bags containing the above items need to be vacuumed to prevent moisture.

[0003] In the prior art, a commonly used solution is to install a one-way valve port on the surface of the bag, and then when vacuuming is required, the vacuum tube is directly or through an air pipe connected to the one-way valve port and then the bag is vacuumed. However, the above solution has the following defects: first, the above solution requires additional configuration of a vacuum tube or even an air pipe. If the above items are lost or damaged, the above solution is basically impossible to implement. Second, when the vacuum tube or air pipe is connected to the one-way valve port, the airtightness of the connection cannot be guaranteed, resulting in low vacuuming efficiency. Utility Model Content

[0004] In order to solve the above-mentioned problems, the utility model provides a press-to-exhaust valve, including a fitting surface, a first air duct is arranged in the fitting surface, one end of the first air duct is connected to an air chamber, the air chamber has an elastic pressing portion, and the end of the first air duct away from the air chamber is connected to a valve, the valve includes a second air duct for connecting the inside and outside of an object to be exhausted, and the two ends of the second air duct are respectively covered with a first one-way air duct and a second one-way air duct.

[0005] Furthermore, the bonding surface includes a first bonding body and a second bonding body which are closely attached to each other.

[0006] Furthermore, the first fitting body is provided with a first opening portion bulging outward, and the second fitting body is provided with a second opening portion bulging inward. When the first fitting body and the second fitting body are tightly attached to each other, the air chamber is formed by the first opening portion and the second opening portion being tightly attached to each other.

[0007] Furthermore, the first opening portion and the second opening portion are both in the shape of a hemisphere.

[0008] Furthermore, the elastic pressing portion is arranged on the first opening portion.

[0009] Furthermore, a through groove is provided on the second opening portion, and when the first fitting body and the second fitting body are in close contact with each other, the first air passage is formed by the first fitting body covering the through groove.

[0010] Furthermore, the first one-way vent sheet and the second one-way vent sheet each include a fixing portion and a sealing portion, the sealing portion is in the shape of an elastic sheet, the fixing portion is arranged in the middle of the sealing portion, and the fixing portion is used to be combined and fixed with the second air duct.

[0011] Furthermore, a connecting ventilator for connecting and fixing the first one-way vent sheet and the second one-way vent sheet is provided in the second ventilator, and the connecting ventilator has a sheet-like structure and completely covers both ends of the second ventilator.

[0012] Furthermore, the connecting ventilation piece includes a connecting hole arranged in the middle and a plurality of ventilation holes arranged around the connecting hole. When the first one-way ventilation piece and the second one-way ventilation piece are connected to the two ends of the second air duct, the fixing portion is used to insert into the connecting hole to fix the first one-way ventilation piece and the second one-way ventilation piece to the two ends of the second air duct, and the sealing portion covers the ventilation hole.

[0013] Furthermore, the sealing portion of the first one-way vent sheet covers a side of the connecting vent piece away from the second vent channel, and the sealing portion of the second one-way vent sheet covers a side of the connecting vent piece close to the second vent channel.

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

[0015] The air chamber and the valve of the utility model are integrated into one design through the first air duct, and the whole is attached to the object that needs to be vacuumed, so the air tightness is good after the overall installation. In addition, the application does not need an external air pipe, so the air leakage problem that may be caused by the air hole connected to the external air pipe cannot occur.

[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 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a schematic diagram of the overall structure of the first bonding body of the utility model;

[0020] Figure 3 It is a schematic diagram of the overall structure of the second bonding body of the utility model;

[0021] Figure 4 It is a schematic structural diagram of the first one-way ventilating sheet and the second one-way ventilating sheet of the second fitting body of the utility model;

[0022] Figure 5 It is a side sectional view of the utility model;

[0023] The reference numerals and names in the figures are as follows:

[0024] The fitting surface 100, the first air passage 200, the air chamber 300, the elastic pressing portion 310, the valve 400, the second air passage 410,

[0025] The first one-way ventilation sheet 420, the second one-way ventilation sheet 430, the first fitting body 110, the second fitting body 120, the first opening portion 111, the second opening portion 121, the through groove 123, the fixing portion 421, the sealing portion 422, the connecting ventilation piece 440, the connecting hole 441, and the ventilation hole 442. DETAILED DESCRIPTION

[0026] 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.

[0027] The utility model is described in more detail. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model. It should be noted that when an element is described as "fixed to" another element, it can be directly on the other element, or there can be one or more centered elements between them. When an element is described as "connected to" another element, it can be directly connected to the other element, or there can be one or more centered elements between them.

[0028] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, vertical, horizontal" and "top, bottom" are usually based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description. Unless otherwise stated, these directional words do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the scope of protection of the present utility model; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself. In the description of the present utility model, it should be noted that the use of words such as "first" and "second" to define components is only for the convenience of distinguishing the corresponding components. If not otherwise stated, the above words have no special meaning, and therefore cannot be understood as limiting the scope of protection of the present utility model. In the description of the embodiments of the present application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0029] Unless otherwise defined, all technical and scientific terms used in this specification have the same meaning as those commonly understood by those skilled in the art of the present invention. The terms used in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention.

[0030] In addition, the technical features involved in the different embodiments of the present application described below can be combined with each other as long as they do not conflict with each other.

[0031] The preferred implementation of the utility model is now described in conjunction with the accompanying drawings. Figure 1 and Figure 5As shown, the press-to-exhaust valve includes a fitting surface 100, in which a first air duct 200 is arranged, one end of the first air duct 200 is connected to an air chamber 300, and the air chamber 300 has an elastic pressing portion 310. The end of the first air duct 200 away from the air chamber 300 is connected to a valve 400, and the valve 400 includes a second air duct 410 for connecting an object to be evacuated and the outside, and the two ends of the second air duct 410 are respectively covered with a first one-way ventilation sheet 420 and a second one-way ventilation sheet 430. In the application scenario of this embodiment, the fitting surface 100 is integrated with the external packaging of the object to be evacuated, so as to wrap the object to be evacuated as a whole, such as a vacuum bag in daily life, which generally contains clothes or bedding that need to be vacuumed. The fitting surface 100 in the present embodiment can be tightly fitted with the vacuum bag to form a whole. When the elastic pressing portion 310 is pressed, the air in the air chamber 300 passes through the first air duct 200 and flows out from the first one-way vent sheet 420. After the air in the air chamber 300 flows out, a negative pressure is generated in the air chamber 300. The external air enters the second air duct 410 from the second one-way vent sheet 430, and then flows into the air chamber 300 through the first air duct 200. By repeating this operation, the air in the vacuum bag can be extracted. Compared with the prior art, the air chamber 300 and the valve 400 of the present application are integrated into one through the first air duct 200, and the whole is attached to the object that needs to be vacuumed. Therefore, the overall airtightness is good after installation. In addition, the present application does not need to be connected to an external air pipe, so there will be no leakage problem caused by the external air hole of the air pipe.

[0032] On the basis of the above embodiments, Figure 2 and Figure 3 As shown, the bonding surface 100 includes a first bonding body 110 and a second bonding body 120 which are tightly attached to each other. In some embodiments, after the embodiment is installed, the first bonding body 110 is arranged on the outside of the object that needs to be evacuated, such as the outside of a vacuum bag, and the second bonding body 120 is arranged on the inside of the object that needs to be evacuated, such as the inside of a vacuum bag.

[0033] On the basis of the above embodiments, Figure 2 and Figure 3As shown, the first fitting body 110 is provided with a first opening portion 111 that bulges outward, and the outside mentioned here is the outside of the object that needs to be evacuated, and the second fitting body 120 is provided with a second opening portion 121 that bulges inward, and the inside mentioned here is the inside of the object that needs to be evacuated. When the first fitting body 110 and the second fitting body 120 are closely attached to each other, the air chamber 300 is formed by the first opening portion 111 and the second opening portion 121 being closely attached to each other. In some embodiments, the shapes of the first opening portion 111 and the second opening portion 121 are both hemispherical, so when the first opening portion 111 and the second opening portion 121 are closely attached to each other, the air chamber 300 forms a roughly spherical shape as a whole.

[0034] On the basis of the above embodiments, Figure 2 and Figure 3 As shown, the elastic pressing portion 310 is arranged on the first opening portion 111, so that when the first opening portion 111 and the second opening portion 121 are sealed and fitted together to form the air chamber 300, since the first opening portion 111 is arranged on the outside of the object that needs to be evacuated, the elastic pressing portion 310 is arranged on the first opening portion 111, so that the user can directly press the elastic pressing portion 310 from the outside to achieve the function of the present application, and no external air extraction pipe is required. In some embodiments, the material of the second opening portion 121 is a hard colloid that is not easily deformed. Since the elastic pressing portion 310 is arranged on the first opening portion 111, it can be understood that the second opening portion 121 is more prone to phase change than the first opening portion 111, which can prevent the second opening portion 121 from being scratched, thereby causing the air chamber 300 to fail.

[0035] On the basis of the above embodiments, Figure 2 and Figure 3 As shown, a through groove 123 is opened on the second opening portion 121, and when the first fitting body 110 and the second fitting body 120 are in close contact with each other, the first air duct 200 is formed by the first fitting body 110 covering the through groove 123. In this way, after the entire fitting surface 100 is installed in place, the first air duct 200 is entirely buried inside the object that needs to be evacuated. Compared with the traditional structure, firstly, no external air pipe is required, which saves the overall number of components. Secondly, burying the first air duct 200 inside can prevent external objects from damaging the first air duct 200, thereby causing the entire function to fail.

[0036] On the basis of the above embodiments, Figure 2 , Figure 3 and Figure 4As shown, the second vent 410 is used to connect the inside and outside of the object to be evacuated, the first one-way vent sheet 420 is arranged between the second vent 410 and the outside of the object to be evacuated, and the second one-way vent sheet 430 is arranged between the second vent 410 and the inside of the object to be evacuated. The first one-way vent sheet 420 and the second one-way vent sheet 430 both include a fixing portion 421 and a sealing portion 422. The sealing portion 422 is in the shape of an elastic sheet. When the air pressures on both sides of the sealing portion 422 are inconsistent, the sealing portion 422 will bend and deform toward the side with weaker pressure. The fixing portion 421 is arranged in the middle of the sealing portion 422, and the fixing portion 421 is used to be combined and fixed with the second vent 410.

[0037] On the basis of the above embodiments, Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, a connecting ventilator 440 for connecting and fixing the first one-way ventilator sheet 420 and the second one-way ventilator sheet 430 is provided in the second ventilator 410. The connecting ventilator 440 has a sheet-like structure and completely covers the two ends of the second ventilator 410. The connecting ventilator 440 includes a connecting hole 441 arranged in the middle and a plurality of vent holes 442 arranged around the connecting hole 441. When the first one-way ventilator sheet 420 and the second one-way ventilator sheet 430 are connected to the two ends of the second ventilator 410, the fixing portion 421 is inserted into the connecting hole 441 to fix the first one-way ventilator sheet 420 and the second one-way ventilator sheet 430 to the two ends of the second ventilator 410. The sealing portion 422 covers the vent holes 442. Specifically, the sealing portion 422 of the first one-way ventilator sheet 420 covers a side of the connecting ventilator sheet 440 away from the second ventilator 410. In this way, when the elastic pressing portion 310 is pressed, the air chamber After the air in the air chamber 300 passes through the first air passage 200 and the second air passage 410 in sequence, the sealing portion 422 of the first one-way air vent sheet 420 is deformed to the side away from the second air passage 410 and no longer covers the vent hole 442, so that the air can flow out of the second air passage 410, and the sealing portion 422 of the second one-way air vent sheet 430 covers the side of the connecting vent 440 close to the second air passage 410. In this way, when negative pressure is generated in the air chamber 300, The external air causes the sealing portion 422 of the second one-way ventilation sheet 430 to deform toward the side close to the second air duct 410 and no longer cover the vent hole 442, thereby allowing the external air to flow into the air chamber 300 after passing through the second air duct 410 and the first air duct 200 in sequence. In this way, the user can continuously press the elastic pressing portion 310 to allow the air outside the second one-way ventilation sheet 430 to continuously flow out of the first one-way ventilation sheet 420 through the second air duct 410.

[0038] 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. Press the air extraction valve, characterized in that: The invention comprises a fitting surface (100), wherein a first air vent (200) is arranged in the fitting surface (100), one end of the first air vent (200) is connected to an air chamber (300), the air chamber (300) has an elastic pressing portion (310), one end of the first air vent (200) away from the air chamber (300) is connected to a valve (400), the valve (400) comprises a second air vent (410) for connecting the inside and the outside of an object to be evacuated, and first one-way vent sheets (420) are respectively covered at both ends of the second air vent (410). 0) and a second one-way ventilation sheet (430), the fitting surface (100) includes a first fitting body (110) and a second fitting body (120) which are tightly fitted to each other, the first fitting body (110) is provided with a first opening portion (111) which bulges outward, and the second fitting body (120) is provided with a second opening portion (121) which bulges inward, when the first fitting body (110) and the second fitting body (120) are tightly fitted to each other, the air chamber (300) is formed by the first opening portion (111) and the second opening portion (121) which are tightly fitted to each other.

2. The push-to-exhaust valve according to claim 1, characterized in that: The first opening portion (111) and the second opening portion (121) are both in the shape of a hemisphere.

3. The push-to-exhaust valve according to claim 2, characterized in that: The elastic pressing portion (310) is arranged on the first opening portion (111).

4. The push-to-exhaust valve according to claim 1, characterized in that: A through groove (123) is provided on the second opening portion (121), and when the first fitting body (110) and the second fitting body (120) are in close contact with each other, the first air passage (200) is formed by the first fitting body (110) covering the through groove (123).

5. The push-to-exhaust valve according to claim 1, characterized in that: The first one-way ventilation sheet (420) and the second one-way ventilation sheet (430) both include a fixing portion (421) and a sealing portion (422), wherein the sealing portion (422) is in the shape of an elastic sheet, and the fixing portion (421) is arranged in the middle of the sealing portion (422), and the fixing portion (421) is used to be combined and fixed with both ends of the second ventilation channel (410).

6. The push-to-exhaust valve according to claim 5, characterized in that: The second air duct (410) is provided with a connecting ventilator (440) for connecting and fixing the first one-way vent sheet (420) and the second one-way vent sheet (430); the connecting ventilator (440) has a sheet-like structure and completely covers both ends of the second air duct (410).

7. The push-to-exhaust valve according to claim 6, characterized in that: The connecting ventilator (440) comprises a connecting hole (441) arranged in the middle and a plurality of vent holes (442) arranged around the connecting hole (441); when the first one-way vent sheet (420) and the second one-way vent sheet (430) are connected to the two ends of the second vent channel (410), the fixing portion (421) is used to be inserted into the connecting hole (441) to fix the first one-way vent sheet (420) and the second one-way vent sheet (430) to the two ends of the second vent channel (410), and the sealing portion (422) covers the vent hole (442).

8. The push-to-exhaust valve according to claim 7, characterized in that: The sealing portion (422) of the first one-way vent sheet (420) covers a side of the connecting vent piece (440) away from the second vent passage (410), and the sealing portion (422) of the second one-way vent sheet (430) covers a side of the connecting vent piece (440) close to the second vent passage (410).

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