CN219488318U - Compression bag air valve - Google Patents

Abstract

The utility model discloses a compression bag air valve, which relates to the technical field of vacuum air valves and comprises an air valve seat, wherein an air inlet is formed in the middle of the air valve seat; the sealing air valve is movably arranged at the air inlet and used for controlling the opening or closing of the air inlet; the air valve cover is used for pressing or loosening the sealing air valve; the locking structure is arranged between the air valve seat and the air valve cover and used for adjusting the connection state of the air valve cover and the air valve seat so as to limit the position of the sealing air valve. According to the compressed bag air valve, the air valve seat and the air valve cover are matched through the locking structure, so that the effect that the air valve cover compresses or loosens the sealing air valve is achieved, when the compressed bag air valve is in a transportation state, the sealing air valve is compressed through the air valve cover, sealing failure caused by loosening or aging of the air valve is effectively avoided, and sealing stability is effectively improved. The locking structure can prevent the separation of the air valve cover and the air valve seat, prevent the loose loss of the air valve cover from causing the loss of protection of the sealing air valve, and the carrying process is more stable.

Description

Compression bag air valve

Technical Field

The utility model relates to the technical field of vacuum air valves, in particular to a compression bag air valve.

Background

With the four seasons replacement, people also need to replace corresponding wearing clothes and bedroom supplies at any time, and the replaced clothes need to be placed in the storage space. And articles such as clothes and bedding are bulky due to the material reason, occupy more storage space, in order to promote storage efficiency, market release vacuum compression bag with one-way pneumatic valve, can put into the vacuum bag to take out vacuum to the fluffy articles such as clothes and bedding, take out the air in the article clearance and effectively compress the storage volume from the container, improve space utilization.

The utility model discloses a dual-purpose vacuum bag air cock of pump drainage in chinese patent ZL 201720026802.9, including the air cock body, there is the air cock chamber in the air cock body, be equipped with the air inlet and the gas outlet in intercommunication air cock chamber on the air cock body, the air cock intracavity is equipped with the air cock with the air inlet cooperation in order to open and close the air inlet, the air cock contains the air cock dish with the air inlet cooperation in order to open and close the air inlet, the air cock dish back is equipped with the guide post, be equipped with on the air cock body can the up-and-down motion and with guide post complex guide structure, the guide post is located guide structure all the time when the air cock moves in the air cock intracavity. The back of air lock sets up the guide post, is equipped with on the air cock body with guide post complex guide structure, when will be with the exhaust gas in the vacuum bag in the smooth and easy motion of air lock intracavity, reduced the exhaust resistance, the people can directly extrude the vacuum bag or curl alright with the gas discharge in the vacuum packaging bag.

After the vacuumizing is finished, the existing vacuum air valve is covered with a cover, so that air leakage caused by loosening of the valve in the accommodating process is avoided. But there is the lid to become flexible easily to drop in the accomodating process and leads to the valve to expose or rubber valve long-term use ageing leads to the gap to increase and leads to the risk of sealed inefficacy, makes sealed inefficacy easily in the handling, and sealing stability is poor.

Disclosure of Invention

The utility model aims to at least solve the problem that the existing vacuum air valve usually covers the valve by a cover after vacuumizing is finished in the prior art, so that air leakage caused by loosening of the valve in the accommodating process is avoided. But there is the lid to become flexible easily to drop and leads to the valve to expose or the rubber valve long-term use ageing leads to the gap to increase and leads to the risk of sealed inefficacy in the storage process, makes sealed inefficacy easily in the handling, the technical problem of sealing stability poor ". Therefore, the valve cover of the compression bag air valve can be movably connected with the valve seat, so that the phenomenon that the valve cover is loose and lost can be effectively avoided, the air valve can be controlled to be compressed and loosened, the valve cover can compress the air valve after vacuumizing, sealing failure caused by loosening or aging of the air valve is avoided, sealing stability is improved, and storage efficiency is improved.

A compression bag valve according to some embodiments of the utility model, comprising:

the middle part of the air valve seat is provided with an air inlet;

the sealing air valve is movably arranged at the air inlet and is used for controlling the opening or closing of the air inlet;

the air valve cover is connected with the air valve seat and is used for pressing or loosening the sealing air valve;

the air valve comprises an air valve seat and an air valve cover, wherein a locking structure is arranged between the air valve seat and the air valve cover and used for adjusting the connection state of the air valve cover and the air valve seat so as to limit the position of the sealing air valve.

According to some embodiments of the utility model, the locking structure comprises a sliding groove and a sliding buckle, wherein the sliding groove is arranged around the periphery of the side wall of the air valve seat, and the sliding buckle is arranged on the periphery of the inner wall of the air valve cover; the sliding groove is obliquely arranged, and when the slide fastener slides in the sliding groove, the air valve cover is far away from the sealing air valve or compresses the sealing air valve.

According to some embodiments of the utility model, protruding points are respectively arranged at two ends of the sliding groove, and when the sliding buckle slides to the protruding point position, the relative positions of the air valve cover and the air valve seat are fixed.

According to some embodiments of the utility model, the bumps comprise an upper bump and a lower bump; when the slide fastener slides to the upper salient point, the air valve cover releases the sealing air valve; when the slide fastener slides to the lower protruding point, the air valve cover compresses the sealing air valve.

According to some embodiments of the utility model, a positioning hole is formed at the air inlet, a positioning column is arranged at the bottom of the sealing air valve, and the positioning column is embedded with the positioning hole and used for limiting the moving direction of the sealing air valve.

According to some embodiments of the utility model, the maximum distance between the air valve cover and the air inlet is smaller than the height of the positioning column, so as to prevent the sealing air valve from being separated from the positioning hole.

According to some embodiments of the utility model, the top of the sealing air valve is in a circular arc bulge shape, a skirt support piece is arranged at the periphery of the air inlet corresponding to the sealing air valve, a skirt rib is arranged at the periphery of the air valve seat corresponding to the sealing air valve, and the skirt rib is positioned above the skirt support piece; when the air valve cover compresses the sealing air valve, the skirt edge pressing ribs and the skirt edge supporting pieces respectively compress the upper side and the lower side of the skirt edge of the sealing air valve.

According to some embodiments of the utility model, the end shape of the skirt support and the skirt bead is configured to fit against the skirt of the sealing gas valve.

According to some embodiments of the utility model, a support rib is arranged on one side of the air valve seat close to the inner part of the vacuum bag, the support rib is distributed around the air inlet, and the support rib is used for preventing the air inlet from being blocked.

According to some embodiments of the utility model, the support ribs are connected with the periphery of the positioning hole, and the support ribs are arranged at equal intervals around the positioning hole.

According to some embodiments of the utility model, the middle part of the air valve cover is provided with an air extraction opening, and the air extraction opening is communicated with the air inlet in an open state and closes the air inlet in a closed state.

The compressed bag air valve according to some embodiments of the present utility model has at least the following beneficial effects: the air valve seat is matched with the air valve cover through the locking structure, so that the effect that the air valve cover compresses or loosens the sealing air valve is achieved, when the air valve seat is in a transportation state, the sealing air valve is compressed through the air valve cover, sealing failure caused by loosening or aging of the air valve is effectively avoided, and sealing stability is effectively improved. The locking structure can prevent the air valve cover from being separated from the air valve seat, so that the air valve cover is prevented from being loose and lost, the sealing air valve is prevented from losing protection, and the carrying process is more stable.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

The foregoing and/or additional aspects and advantages of the utility model will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

FIG. 1 is a schematic perspective view of a compression bag valve according to an embodiment of the present utility model;

FIG. 2 is a first exploded view of a compression bag valve according to an embodiment of the present utility model;

FIG. 3 is a second exploded view of a compression bag valve according to an embodiment of the present utility model;

FIG. 4 is a cross-sectional view of a compression bag valve according to an embodiment of the present utility model.

Reference numerals:

an air valve seat 100, an air inlet 110, a positioning hole 120, a supporting rib 130, a skirt supporting member 140,

Sealing gas valve 200, positioning column 210,

The air valve cover 300, the skirt rib 310, the air extraction opening 320,

Chute 410, bump 411, upper bump 411-1, lower bump 411-2, slider 420.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

In the description of the present utility model, it should be understood that references to orientation descriptions such as upper, lower, front, rear, left, right, top, bottom, etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, a number means one or more, a number means two or more, and greater than, less than, exceeding, etc. are understood to not include the present number, and above, below, within, etc. are understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present utility model, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present utility model can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.

A compression bag gas valve according to an embodiment of the present utility model is described below with reference to fig. 1-4.

As shown in fig. 1 to 4, the air valve of the compression bag comprises an air valve seat 100, an air valve cover 300 and a sealing air valve 200, wherein the air valve seat 100 is attached to the surface of the vacuum bag, the vacuum bag is mainly used for accommodating fluffy articles such as compressed clothes and bedding, and the air in the vacuum bag is pressed and discharged or vacuumized through the air valve of the compression bag, so that the accommodating volume of the vacuum bag is compressed, and the effective storage space is efficiently utilized.

The vacuum bag is provided with the opening, and the air valve seat 100 is laminated in the surface of vacuum bag and aligns with the opening, and the middle part of air valve seat 100 is provided with air inlet 110, and air inlet 110 communicates with the inside of vacuum bag. When the user exhausts the vacuum bag by manual pressing or vacuumizing equipment, the air in the vacuum bag is exhausted to the outside through the air inlet 110 at the opening, so that the air in the bag is continuously exhausted.

And the sealing air valve 200 is movably arranged at the air inlet 110, and the sealing air valve 200 is used for controlling the opening or closing of the air inlet 110. When the air inlet 110 is in the air suction state, the sealing air valve 200 is far away from the air inlet 110, so that the air in the vacuum bag can be discharged to the outside through the air inlet 110. When the air inlet 110 is not in the air extraction state, the air pressure in the vacuum bag is smaller than the external air pressure, and the sealing air valve 200 is attached to the air inlet 110 under the action of the pressure difference, so that the air inlet 110 is sealed, and external air is prevented from entering the vacuum bag.

The air valve cover 300 is connected with the air valve seat 100 for compressing or releasing the sealing air valve 200, when the vacuum bag needs to be vacuumized, the air valve cover 300 is unscrewed, so that the sealing air valve 200 can be separated from the air inlet 110, and at the moment, the air in the vacuum bag can be discharged. When the vacuum bag is in a storage state after the vacuum bag is completely vacuumized, the air valve cover 300 is screwed down, so that the air valve cover 300 compresses the sealing air valve 200, a gap is avoided between the sealing air valve 200 and the air inlet 110, and the condition of sealing failure is effectively avoided. And can prevent that sealing air valve 200 from using for a long time because the leakproofness that rubber ageing brought from degrading the problem, compress tightly sealing air valve 200 and air inlet 110 through air valve gap 300, make both closely laminate, effectively promote the life and the sealing stability of compression bag pneumatic valve.

Wherein, a locking structure is arranged between the air valve seat 100 and the air valve cover 300, and the locking structure is used for adjusting the connection state of the air valve cover 300 and the air valve seat 100 so as to limit the position of the sealing air valve 200. In the present utility model, a locking structure is provided between the air valve seat 100 and the air valve cover 300, and the locking structure is used to adjust the connection state of the air valve cover 300 and the air valve seat 100 so as to limit the position of the sealing air valve 200. Specifically, the locking structure enables the air cap 300 to be freely switched between the locked and unlocked states, and prevents the air cap 300 from being completely separated from the air valve seat 100. The air valve cover 300 switches between the pressing and releasing states of the sealing air valve 200 within a certain range of movement. The problem that the sealing air valve 200 is exposed due to the fact that the air valve cover 300 is separated from the air valve seat 100 in the transportation process is effectively avoided, and the screwed air valve cover 300 can tightly press the sealing air valve 200, so that better sealing stability is provided.

Limiting the movable range of the air valve cover 300 on the air valve seat 100 can prevent the sealing air valve 200 from loosening, can prevent the air valve cover 300 from loosening, and improves the sealing stability of the vacuum bag storage state. The compressed bag air valve is switched to a working state more quickly, and the vacuumizing efficiency is effectively improved. Compared with the existing vacuumizing air valve, the components of the compressed bag air valve are more tightly connected, the components are effectively prevented from being lost, the air valve cover 300 can compress the sealing air valve 200, the sealing air valve 200 moves in a gap between the air valve cover 300 and the air valve seat 100 to prevent loosening, the locking structure prevents the air valve cover 300 from being separated from the air valve seat 100, and the whole structure is more compact, so that the sealing stability of the vacuum bag is improved.

In some embodiments of the present utility model, as shown in fig. 2 and 3, the locking structure includes a sliding groove 410 and a sliding button 420, the sliding groove 410 is circumferentially disposed around the sidewall of the air valve seat 100, the sliding button 420 is circumferentially disposed on the inner wall of the air valve cover 300, when the air valve cover 300 is sleeved on the air valve seat 100, the sliding button 420 of the air valve cover 300 is engaged in the sliding groove 410 of the air valve seat 100, and the sliding button 420 is movable along the path of the sliding groove 410, so that the air valve cover 300 rotates within the path range of the sliding groove 410.

In order to enable the air valve cover 300 to be away from the sealing air valve 200 or to press the sealing air valve 200 during rotation, the sliding groove 410 of the outer wall of the air valve seat 100 is inclined. In this embodiment, the sliding grooves 410 are provided in three groups, equally spaced around the sidewall of the air valve seat 100. The sliding groove 410 is disposed obliquely on the sidewall of the air valve seat 100, and specifically, the inclination angle of the sliding groove 410 determines the movable range of the air valve cover 300.

When the slider 420 slides to the lowest point of the chute 410, the air cap 300 presses the sealing air valve 200, and the air cap 300 is at the lowest point. When the slider 420 slides to the highest point of the chute 410, the air cap 300 is away from the sealing air valve 200, and the air cap 300 is at the highest point. When the air valve cover 300 is at the highest point, the sealing air valve 200 moves between the air valve cover 300 and the air inlet 110, and vacuum pumping work can be performed.

It should be appreciated that the setting positions of the sliding groove 410 and the sliding buckle 420 of the locking structure are not the only implementation manner, in other embodiments, the sliding groove 410 can be further arranged on the inner side wall of the air valve cover 300 according to actual production requirements, the sliding buckle 420 is arranged on the outer side wall of the air valve seat 100, so that the outer side wall of the air valve seat 100 is smoother, dirt is hidden in gaps and is more convenient to clean, the sliding groove 410 is arranged on the inner side wall of the air valve cover 300, and dust and other dirt can be effectively prevented from falling into the sliding groove 410 due to low contact probability between the inner side wall of the air valve cover 300 and the outside, so that the rotation smoothness between the air valve cover 300 and the air valve seat 100 is ensured, and the service life is ensured. The present utility model is not repeated for the setting positions of the sliding groove 410 and the sliding buckle 420, and it should be understood that the setting positions of the sliding groove 410 and the sliding buckle 420 are flexibly changed without departing from the basic concept of the present utility model, and all should be considered as being within the protection scope defined by the present utility model.

In some embodiments of the present utility model, as shown in fig. 2 and 3, two ends of the sliding slot 410 are respectively provided with a protruding point 411, and when the slider 420 slides to the protruding point 411, the relative position of the air valve cover 300 and the air valve seat 100 is fixed.

In some embodiments of the present utility model, as shown in fig. 2 and 3, the bumps 411 include an upper bump 411-1 and a lower bump 411-2. When the slider 420 slides to the upper bump 411-1, the air cap 300 releases the sealing air valve 200. When the slider 420 slides to the lower bump 411-2, the air valve cover 300 presses the sealing air valve 200 in a pressed state.

Specifically, in order to prevent the air cap 300 from loosening in a handling state to cause a sealing failure or prevent the air cap 300 from being pressed against the sealing air valve 200 during the vacuum pumping process to cause an influence on the vacuum pumping effect. The upper protruding point 411-1 and the lower protruding point 411-2 are correspondingly arranged at the extreme positions of the two ends of the sliding chute 410, when the sliding button 420 of the air valve cover 300 slides to the extreme positions of the sliding chute 410, the sliding button 420 of the air valve cover 300 is embedded with the upper protruding point 411-1 or the lower protruding point 411-2 in the sliding chute 410, so that the air valve cover 300 is limited to move up and down along the sliding chute 410. After the position of the air valve cover 300 is fixed, the sealing air valve 200 can work stably in the vacuumizing process, and in the vacuum bag storage compression state, the air valve cover 300 can compress the sealing air valve 200, so that the looseness of the sealing air valve 200 in the transportation state is avoided, and the sealing stability of the vacuum storage bag in the storage state is improved.

In some embodiments of the present utility model, as shown in fig. 2-4, a positioning hole 120 is provided at the air inlet 110, a positioning column 210 is provided at the bottom of the sealing air valve 200, and the positioning column 210 is engaged with the positioning hole 120 to limit the moving direction of the sealing air valve 200.

Specifically, in order to enable the sealing air valve 200 to move up and down along a designated path in the space between the air valve cover 300 and the air inlet 110, the positioning column 210 and the positioning hole 120 at the bottom of the sealing air valve 200 are embedded, and the slotting direction of the positioning hole 120 is perpendicular to the end surface of the air inlet 110, so that the sealing air valve 200 is limited to move vertically above the air inlet 110, the sealing air valve 200 is ensured to cover the air inlet 110 completely in the descending process, and a better sealing effect is achieved.

In some embodiments of the present utility model, the maximum distance between the air cap 300 and the air inlet 110 is smaller than the height of the positioning column 210, so as to prevent the sealing air valve 200 from being separated from the positioning hole 120. Specifically, the maximum opening interval of the air valve cover 300 is limited by the height difference of the sliding groove 410, so that the positioning column 210 of the sealing air valve 200 is prevented from being separated from the positioning hole 120, the stability of the sealing air valve 200 in the vacuumizing process is effectively improved, and the compression bag air valve damage caused by the separation of the sealing air valve 200 and the air valve seat 100 due to the overlarge suction force of the vacuumizing equipment is avoided.

In some embodiments of the present utility model, as shown in fig. 2-4, the top of the sealing air valve 200 is in a circular arc shape, the periphery of the air inlet 110 corresponding to the sealing air valve 200 is provided with a skirt support 140, the periphery of the air valve seat 100 corresponding to the sealing air valve 200 is provided with a skirt bead 310, and the skirt bead 310 is located above the skirt support 140. The skirt edge pressing rib 310 and the skirt edge supporting piece 140 are positioned on the same vertical line, when the skirt edge pressing rib and the skirt edge supporting piece are attached, the stress is more balanced, the upper side and the lower side of the sealing air valve 200 can be better pressed, the stability of the skirt edge of the sealing air valve 200 in a storage state is improved, and the edge warping caused by long-time use aging of rubber of the sealing air valve 200 is avoided.

Specifically, when the air valve cover 300 presses the sealing air valve 200, the skirt bead 310 and the skirt supporter 140 press the upper and lower sides of the skirt of the sealing air valve 200, respectively.

In some embodiments of the present utility model, as shown in fig. 3 and 4, the end shape of the skirt support 140 and skirt bead 310 is configured to conform to the skirt of the sealing gas valve 200. Specifically, in order to better fit the skirt bead 310 and the skirt support 140 against the skirt of the sealing gas valve 200, the stress area of the skirt and both are increased. The end face shapes of the skirt support 140 and the skirt press rib 310, which are close to the end of the sealing air valve 200, are attached to the upper side and the lower side of the skirt of the sealing air valve 200, so that the skirt stress area of the sealing air valve 200 is larger, and the compression effect is better.

In some embodiments of the present utility model, as shown in fig. 3 and 4, the air valve seat 100 is provided with support ribs 130 on a side near the inside of the vacuum bag, the support ribs 130 are distributed around the air inlet 110, and the support ribs 130 are used to prevent the air inlet 110 from being blocked.

Specifically, at least two support ribs 130 are provided at the bottom, and in this embodiment, eight support ribs 130 are provided, the support ribs 130 divide the air inlet 110 into eight air inlet areas, and the support ribs 130 support the clothes to the bottom in a protruding manner, so that the air inlet areas are prevented from being blocked.

In some embodiments of the present utility model, as shown in fig. 3, the support ribs 130 are connected to the circumference of the positioning hole 120, and the support ribs 130 are disposed at equal intervals around the positioning hole 120.

Specifically, the middle part of the supporting rib 130 supports the position of the positioning hole 120, and the positioning hole 120, the supporting rib 130 and the air valve seat 100 are integrally formed, so that the structural strength of the positioning hole 120 can be increased, and the problem that the sealing effect of the compression bag air valve is affected due to loosening of the sealing air valve 200 caused by connection fracture of the positioning hole 120 and the air valve seat 100 in the vacuumizing process is avoided.

In some embodiments of the present utility model, as shown in fig. 1 and 2, the middle portion of the air cap 300 is provided with an extraction opening 320, and the extraction opening 320 communicates with the air inlet 110. When the vacuum bag needs to be vacuumized, the air valve cover 300 is not required to be disassembled, the air valve cover 300 is only required to be unscrewed to a designated position, the air of the air inlet 110 can be discharged from the air extraction opening 320 of the air valve cover 300, the vacuumizing operation is completed, and the probability of component loss is effectively reduced.

Specifically, the air suction opening 320 of the air valve cover 300 is provided with a plurality of sickle-shaped air outlets, and when the air valve cover 300 moves upward, the sealing air valve 200 is released from the sealing state, and the air inlet 110 of the air valve seat 100 is communicated with the air suction opening 320 of the air valve cover 300. The suction port 320 communicates with the air inlet 110 in an open state, and closes the air inlet 110 in a closed state.

The application method of the compression bag air valve comprises the following steps:

when the bag volume is required to be compressed, the air valve cover 300 is rotated anticlockwise, the slide button 420 of the air valve cover 300 moves along the slide groove 410 of the air valve seat 100, the air valve cover 300 reaches the upper limit, the skirt bead 310 on the air valve cover 300 releases the state of compressing the sealing air valve 200, and the vacuum compression bag is communicated with the space outside the air valve cover 300. At this time, the air in the bag can be discharged by pressing the vacuum compression bag body by hand, or the air in the bag can be pumped by using an electric pump. When the air exhaust or the air suction is stopped, the air in the bag is reduced to cause negative pressure, and the sealing air valve 200 is tightly attached to the skirt support 140 of the air valve seat 100 under the action of the atmospheric pressure, so that the air outside the air valve cover 300 cannot enter the bag.

After the exhaust or the air extraction is finished, the air valve cover 300 is rotated clockwise, the slide button 420 of the air valve cover 300 moves along the slide groove 410 of the air valve seat 100, the air valve cover 300 reaches the lower limit, the skirt edge pressing rib 310 on the air valve cover 300 presses the sealing air valve 200, the space inside the vacuum compression bag and outside the air valve cover 300 is isolated, and the bag body is in a sealing state.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.

Claims (10)

1. A compression bag valve, comprising:

the air valve seat (100), the middle part of the air valve seat (100) is provided with an air inlet (110);

the sealing air valve (200) is movably arranged at the air inlet (110), and the sealing air valve (200) is used for controlling the opening or closing of the air inlet (110);

a gas valve cover (300) connected with the gas valve seat (100), wherein the gas valve cover (300) is used for pressing or releasing the sealing gas valve (200);

the air valve comprises an air valve seat (100) and an air valve cover (300), wherein a locking structure is arranged between the air valve seat (100) and the air valve cover (300), and the locking structure is used for adjusting the connection state of the air valve cover (300) and the air valve seat (100) so as to limit the position of the sealing air valve (200).

2. The compression pocket valve as defined in claim 1, wherein the locking structure comprises a sliding groove (410) and a sliding buckle (420), the sliding groove (410) is arranged around the periphery of the side wall of the valve seat (100), and the sliding buckle (420) is arranged on the periphery of the inner wall of the valve cover (300);

the sliding groove (410) is obliquely arranged, and when the sliding buckle (420) slides in the sliding groove (410), the air valve cover (300) is far away from the sealing air valve (200) or compresses the sealing air valve (200).

3. The compression bag gas valve according to claim 2, wherein protruding points (411) are respectively arranged at two ends of the sliding groove (410), and when the sliding buckle (420) slides to the protruding points (411), the relative positions of the gas valve cover (300) and the gas valve seat (100) are fixed.

4. A compression pocket valve as claimed in claim 3, characterised in that the bumps (411) comprise an upper bump (411-1) and a lower bump (411-2);

when the slider (420) slides to the upper protruding point (411-1), the air valve cover (300) releases the sealing air valve (200);

when the slider (420) slides to the lower bump (411-2), the air valve cover (300) presses the sealing air valve (200).

5. The compression bag gas valve according to claim 2, wherein a positioning hole (120) is provided at the gas inlet (110), a positioning column (210) is provided at the bottom of the sealing gas valve (200), and the positioning column (210) is embedded with the positioning hole (120) for limiting the moving direction of the sealing gas valve (200).

6. The compression pocket valve as defined in claim 5, wherein the maximum distance between the valve cover (300) and the air inlet (110) is smaller than the height of the positioning column (210) for preventing the sealing valve (200) from being separated from the positioning hole (120).

7. The compression bag gas valve according to claim 1, wherein the top of the sealing gas valve (200) is in a circular arc convex shape, a skirt support (140) is arranged at the periphery of the gas inlet (110) corresponding to the sealing gas valve (200), a skirt bead (310) is arranged at the periphery of the gas valve seat (100) corresponding to the sealing gas valve (200), and the skirt bead (310) is positioned above the skirt support (140);

when the air valve cover (300) presses the sealing air valve (200), the skirt edge pressing ribs (310) and the skirt edge supporting pieces (140) respectively press the upper side and the lower side of the skirt edge of the sealing air valve (200).

8. The compression bag valve as defined in claim 7, wherein the end shape of the skirt support (140) and the skirt bead (310) conform to the skirt arrangement of the sealing valve (200).

9. The compression bag valve according to claim 5, wherein a support rib (130) is provided on a side of the valve seat (100) close to the interior of the vacuum bag, the support rib (130) being distributed around the air inlet (110), the support rib (130) being adapted to prevent the air inlet (110) from being blocked.

10. The compression pocket valve as defined in any one of claims 1-9, wherein an extraction opening (320) is provided in the middle of the valve cover (300), the extraction opening (320) being in open state communicating with the air inlet (110), and closing the air inlet (110) in closed state.