Negative pressure air stopping valve

Abstract

The utility model discloses a negative pressure air stop valve which comprises a valve seat, a valve cover and a sealing gasket. The sealing device has the advantages that the clamping block, the clamping rail and the inserting groove are adopted, the clamping rail and the inserting groove are formed in the outer surface of the valve seat, the valve seat is fixedly connected with the vacuum bag through the installation plate, the sealing gasket is installed in the gasket groove, during vacuumizing, the edge of the sealing gasket deforms, air is exhausted, and after vacuumizing is finished, the sealing gasket rebounds to block the gasket groove, air leakage is avoided, and air stopping is completed; when a worker installs the valve cover, the clamping block can be inserted into the inserting groove after being aligned with the inserting groove, then the valve cover is rotated to enable the clamping block to rotate to the other end of the clamping rail along the clamping rail, fixing can be completed, compared with a traditional valve cover in threaded connection, installation can be completed only by rotating the valve cover by a small angle, use convenience is improved, and meanwhile the valve cover is convenient to install. The pressing ring can extrude the sealing gasket after the valve cover is installed, air leakage is avoided, and compared with a traditional cover, the good sealing effect is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to vacuum storage bag technical field, specifically, relate to a negative pressure air stop valve. BACKGROUND

[0002] Vacuum storage bag, also known as vacuum compression bag, is a kind of bag for packing cotton quilt and various clothes. Its main working principle is to remove the air in the bag, so that the volume of cotton quilt or clothes is significantly reduced, thereby realizing efficient space utilization, vacuum storage bag surface is provided with negative pressure air stop valve, for vacuum equipment to carry out air extraction, simultaneously, avoid air leakage after vacuum equipment is released, facilitate use.

[0003] The traditional negative pressure air stop valve is provided with a valve cover, the valve cover is connected with the valve seat through threads, although good sealing effect is achieved, however, the staff needs to rotate the valve cover for many rounds, it is more troublesome, meanwhile, the internal sealing pad is also easy to drop and lose, leading to poor air stop effect, affecting the stability and convenience of use, further improvement can be made.

[0004] For the problems in the related art, no effective solution has been proposed so far. UTILITY MODEL CONTENTS

[0005] (I) technical problem solved

[0006] In view of the deficiencies in the prior art, the utility model provides a negative pressure air stop valve, which has the advantages of convenient use, thereby solving the problems in the above background technology.

[0007] (II) technical scheme

[0008] To achieve the above-mentioned advantages of convenient use, the utility model adopts the following specific technical scheme:

[0009] A negative pressure air stop valve, comprising a valve seat, a valve cover and a sealing pad, the valve seat bottom surface is integrally connected with a mounting plate, the valve seat outer surface is provided with a clamping rail, and the clamping rail one end top surface is provided with a slot, the valve seat center position is fixedly connected with a middle ring through a support frame, and the middle ring outer side is provided with a pad groove in the valve seat inner bottom surface, the valve cover inner wall is provided with a clamping block corresponding to the slot position, and the valve cover inner top surface is fixedly installed with a pressing ring, and the sealing pad bottom surface is connected with a ball head through a connecting column.

[0010] Further, the sealing pad, connecting column and ball head are of an integral structure, and the connecting column length is equal to the middle ring height.

[0011] Further, the clamping rail is arranged with multiple groups, and the clamping rail is arranged with multiple groups along the valve seat central axis at equal angles.

[0012] Further, the valve cover, the valve seat and the sealing gasket are coaxially arranged, and the valve cover, the compression ring, the gasket groove and the middle ring are coaxially arranged.

[0013] Further, the valve cover top surface edge is provided with a side hole, and the valve cover top surface is provided with a top hole inside the side hole.

[0014] Further, the valve cover top surface is provided with a mark between the side hole and the top hole.

[0015] Further, the valve cover edge is provided with a protrusion, and the protrusion is arranged in a ring shape.

[0016] Further, the sealing gasket, the connecting column and the ball head are coaxially arranged, and the sealing gasket, the connecting column and the ball head are an integral structure.

[0017] (Three) beneficial effects

[0018] Compared with the prior art, the utility model provides a negative pressure air stop valve, has the following beneficial effects:

[0019] (1), the utility model discloses a clamping block, rail and slot, rail and slot are set up in the valve seat outer surface, and the valve seat is fixedly connected with the vacuum bag through the mounting plate, and the sealing gasket is installed in the gasket groove, when vacuumizing, the sealing gasket edge deforms, air is discharged, after the vacuumization is finished, the sealing gasket rebounds, and the gasket groove is blocked, so that air leakage is avoided, air stop is completed, and when installing the valve cover, the clamping block can be inserted into the slot after being aligned with the slot, then the valve cover is rotated, the clamping block is rotated to the other end of the rail along the rail, and the fixing can be completed, compared with the valve cover of traditional screw connection, the device only needs to rotate the valve cover at a small angle to complete the installation, and the convenience in use is improved, meanwhile, the compression ring can extrude the sealing gasket after the valve cover is installed, air leakage is avoided, and good sealing effect is achieved compared with the traditional cover.

[0020] (2), the utility model discloses a connecting column and ball head, the connecting column height is equal to the middle ring height, the ball head passes through the middle ring, the ball head adopts the same rubber material as the sealing gasket, passes through the middle ring through deformation, the ball head is tightly pressed against the bottom surface of the middle ring, the sealing gasket is fixed by pulling, air leakage is avoided, the stability in use is improved, and the convenience in use is further improved. ACCURACY

[0021] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained according to these drawings without paying creative labor.

[0022] Figure 1It is the external structure schematic view of the valve cover of the negative pressure air stop valve door provided by the utility model.

[0023] Figure 2 It is the internal structure schematic view of the valve cover of the negative pressure air stop valve door provided by the utility model.

[0024] Figure 3 It is the top structure schematic view of the valve seat of the negative pressure air stop valve door provided by the utility model.

[0025] Figure 4 It is the bottom structure schematic view of the valve seat of the negative pressure air stop valve door provided by the utility model.

[0026] Figure 5 It is the bottom structure schematic view of the sealing gasket of the negative pressure air stop valve door provided by the utility model.

[0027] Figure 6 It is the top structure schematic view of the sealing gasket of the negative pressure air stop valve door provided by the utility model.

[0028] In the drawing,

[0029] 1, valve cover;2, top hole;3, mark;4, convex;5, clamping block;6, compression ring;7, side hole;8, mounting plate;9, valve seat;10, clamping rail;11, insertion slot;12, support frame;13, middle ring;14, pad groove;15, sealing gasket;16, connecting column;17, ball head. DETAILED DESCRIPTION

[0030] To further illustrate the embodiments, the utility model provides the drawing, these drawings are a part of the utility model disclosure, it mainly used to illustrate the embodiment, and can cooperate the relevant description of the specification to explain the operation principle of the embodiment, cooperate with reference to these contents, the person skilled in the art should be able to understand other possible implementation ways and the advantages of the utility model, the components in the drawing are not drawn according to scale, and similar component symbols are usually used to indicate similar components.

[0031] According to the embodiment of the utility model, a negative pressure air stop valve door is provided.

[0032] The utility model will be further illustrated by combining with the specific embodiment and the drawing, such as Figures 1-6As shown, according to the negative pressure air stop valve of the utility model embodiment, including valve seat 9, valve cover 1 and sealing gasket 15, the bottom surface of valve seat 9 is integrally connected with mounting plate 8, and the outer surface of valve seat 9 is provided with clamping rail 10, the inner recessed arc structure of clamping rail 10, and the top surface of one end of clamping rail 10 is provided with slot 11, the center position of valve seat 9 is fixedly connected with middle ring 13 through support frame 12, and the outer side of middle ring 13 is provided with pad groove 14 on the inner bottom surface of valve seat 9, the inner wall of valve cover 1 is provided with clamping block 5 at the position of slot 11, and the inner top surface of valve cover 1 is fixedly installed with compression ring 6, the bottom surface of sealing gasket 15 is connected with ball head 17 through connecting column 16, the size of clamping rail 10 matches the size of clamping block 5, valve seat 9 is fixedly connected with vacuum bag through mounting plate 8, sealing gasket 15 is installed in pad groove 14, when vacuumizing, the edge of sealing gasket 15 deforms, air is discharged, after vacuumizing, sealing gasket 15 rebounds, pad groove 14 is blocked, air leakage is avoided, air stop is completed, when installing valve cover 1, clamping block 5 can be inserted into slot 11 after being aligned with slot 11, then valve cover 1 is rotated, clamping block 5 is rotated to the other end of clamping rail 10 along clamping rail 10, that is, the fixing can be completed, compared with the traditional threaded connection valve cover 1, the device only needs to rotate the valve cover 1 at a small angle to complete the installation, improves the convenience of use, at the same time, compression ring 6 can extrude sealing gasket 15 after the installation of valve cover 1, air leakage is avoided, compared with the traditional cover, good sealing effect is achieved.

[0033] In one embodiment, sealing gasket 15, connecting column 16 and ball head 17 are of an integral structure, the length of connecting column 16 is equal to the height of middle ring 13, ball head 17 passes through middle ring 13, ball head 17 is made of the same rubber material as sealing gasket 15, passes through middle ring 13 by deformation, ball head 17 abuts against the bottom surface of middle ring 13, forms the pull connection and fixation of sealing gasket 15, avoids the falling and loss of sealing gasket 15, improves the stability of use, further improves the convenience of use.

[0034] In one embodiment, clamping rail 10 is arranged in multiple groups, and clamping rail 10 is arranged in multiple groups along the central axis of valve seat 9 at equal angles, improving the stability of installation.

[0035] In one embodiment, valve cover 1, valve seat 9 and sealing gasket 15 are coaxially arranged, and valve cover 1, compression ring 6, pad groove 14 and middle ring 13 are coaxially arranged, improving the stability of installation, which is a common structure.

[0036] In one embodiment, the top surface of valve cover 1 is provided with edge hole 7, and the top surface of valve cover 1 is provided with top hole 2 inside the inner side of edge hole 7, which reduces weight.

[0037] In one embodiment, a mark 3 is provided between edge hole 7 and top hole 2 on the top surface of valve cover 1, and the mark 3 indicates the reverse of the switch.

[0038] In one embodiment, the valve cover 1 edge is provided with a protrusion 4, and the protrusion 4 is arranged in a ring shape, improving the friction force and facilitating manual rotation.

[0039] In one embodiment, the sealing gasket 15, the connecting column 16 and the ball head 17 are coaxially arranged, and the sealing gasket 15, the connecting column 16 and the ball head 17 are of an integrated structure, and the sealing gasket 15 is made of rubber material.

[0040] Working principle:

[0041] The valve seat 9 is fixedly connected with the vacuum bag through the mounting plate 8, and the sealing gasket 15 is installed in the gasket groove 14; when vacuumizing, the edge of the sealing gasket 15 deforms, air is discharged, and after the vacuumizing is completed, the sealing gasket 15 rebounds to block the gasket groove 14, so that air leakage is avoided, air stopping is completed, and the clamping block 5 can be inserted into the insertion slot 11 after being aligned with the insertion slot 11 during installation of the valve cover 1, then the valve cover 1 is rotated, the clamping block 5 is rotated to the other end of the clamping rail 10 along the clamping rail 10, and the installation is completed; compared with the traditional threaded connection valve cover 1, the device only needs to be rotated at a small angle to complete the installation, thereby improving the convenience of use; meanwhile, the compression ring 6 can extrude the sealing gasket 15 after the valve cover 1 is installed, so that air leakage is avoided, and a good sealing effect is achieved compared with the traditional cover; meanwhile, the height of the connecting column 16 is equal to the height of the middle ring 13, the ball head 17 penetrates through the middle ring 13, the ball head 17 is made of the same rubber material as the sealing gasket 15, penetrates through the middle ring 13 by deforming, the ball head 17 is tightly abutted against the bottom surface of the middle ring 13, the sealing gasket 15 is pulled and fixed, the sealing gasket 15 is prevented from falling and being lost, the stability of use is improved, and the convenience of use is further improved.

[0042] In the utility model, unless another definite provision and limitation, the terms "mounting", "setting", "connecting", "fixing", "screw connection" and the like terms should be understood in a broad sense, for example, can be fixed connection, also can be detachable connection, or be integrated, can be mechanical connection, also can be electrical connection, can be directly connected, also can be indirectly connected through intermediate medium, can be the communication or mutual action relationship of two elements, unless another definite limitation, for the ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0043] The above only describes the preferred embodiment of the utility model, and does not limit the utility model, and any modification, equivalent replacement, improvement and the like made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A negative pressure air stop valve, characterized in that, Including valve seat (9), valve cover (1) and gasket (15), the bottom surface of the valve seat (9) is integrally connected with the mounting plate (8), and the outer surface of the valve seat (9) is provided with the clamping rail (10), and the top surface of one end of the clamping rail (10) is provided with the slot (11), the center position of the valve seat (9) is fixedly connected with the middle ring (13) through the support frame (12), and the outer side of the middle ring (13) is provided with the pad groove (14) on the inner bottom surface of the valve seat (9), the inner wall of the valve cover (1) is provided with the clamping block (5) corresponding to the position of the slot (11), and the inner top surface of the valve cover (1) is fixedly installed with the compression ring (6), the bottom surface of the gasket (15) is connected with the ball head (17) through the connecting column (16).

2. The negative pressure air stop valve according to claim 1, wherein The sealing gasket (15), connecting column (16) and ball head (17) are of an integral structure, and the length of the connecting column (16) is equal to the height of the middle ring (13).

3. The negative pressure air stop valve according to claim 1, wherein The clamping rail (10) is arranged in multiple groups, and the clamping rail (10) is arranged in multiple groups along the central axis of the valve seat (9) at equal angles.

4. The negative pressure air stop valve according to claim 1, wherein The valve cover (1), valve seat (9) and gasket (15) are coaxially arranged, and the valve cover (1), compression ring (6), pad groove (14) and middle ring (13) are coaxially arranged.

5. The negative pressure air stop valve according to claim 1, wherein The top surface of the valve cover (1) is provided with the edge hole (7), and the top surface of the valve cover (1) is provided with the top hole (2) inside the edge hole (7).

6. The negative pressure air stop valve according to claim 5, wherein The top surface of the valve cover (1) is provided with the mark (3) between the edge hole (7) and the top hole (2).

7. The negative pressure air stop valve of claim 1, wherein, The edge of the valve cover (1) is provided with the protrusion (4), and the protrusion (4) is arranged in a ring shape.

8. The negative pressure air stop valve of claim 1, wherein, The sealing gasket (15), connecting column (16) and ball head (17) are coaxially arranged, and the sealing gasket (15), connecting column (16) and ball head (17) are of an integral structure.

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