Anti-backflow vacuum compression bag

Abstract

The utility model relates to the technical field of vacuum compression bags, and discloses an anti-backflow vacuum compression bag which comprises a vacuum bag, an inner-layer bag is fixedly connected to the middle of the inner wall of the vacuum bag, air bags are fixedly connected to the periphery of the outer wall of the inner-layer bag, and a sealing strip is fixedly connected to the left side of the outer wall of the inner-layer bag. The right side of the top of the vacuum bag communicates with an exhaust pipe, second springs are fixedly connected to the periphery of the outer wall of the connecting rod, an air plug is fixedly connected to the bottom of the outer wall of the connecting rod, and a connecting mechanism is rotationally connected to the left side of the outer wall of the vacuum bag and used for being fixedly connected with a vacuum compression bag. The vacuum bag is connected with air exhaust equipment to exhaust air, the one-way valve prevents backflow, the backflow preventing device allows air to be exhausted, the spring pushes the air plug to seal the channel after air exhaust, the compression effect is improved, the sealing strip is located on the outer wall of the inner layer bag, the air exhaust efficiency is improved, the ideal vacuum degree is achieved, and the probability of air leakage of the compression bag is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to vacuum compression bag technical field especially relates to the anti -backflow vacuum compression bag. BACKGROUND

[0002] Vacuum compression bag forms the vacuum state through the air extraction device and removes the air in the bag, because the air pressure in the bag is much lower than the outside, under the action of atmospheric pressure, the bag body tightly wraps the objects, realizes the compression to the objects, after vacuum compression, the volume can greatly reduce, and the storage and transportation are convenient, and the sealing valve plays a key role, after the air extraction is completed, can effectively prevent the air backflow, maintains the vacuum environment in the bag, ensures that the compression effect can be kept for a long time.

[0003] The anti -backflow vacuum compression bag is a storage tool designed for efficient storage and long -term vacuum preservation of objects, and is composed of a sealing valve system with a unique anti -backflow mechanism, after the objects are stored, the anti -backflow sealing valve prevents air backflow, the one-way valve structure only allows air to flow outward, and is automatically closed after air extraction, thereby maintaining the vacuum degree, but in the prior art anti -backflow vacuum compression bag, the looseness of the connecting part also leads to the sealing is not strict, if there is a small gap in the connecting part during the air extraction process, air will leak from the gap, which affects the air extraction efficiency, it is difficult to achieve the ideal vacuum degree, and after long -term use, the sealing hidden danger will become more serious with the aging of the connecting part, and the probability of air leakage of the compression bag is increased. UTILITY MODEL CONTENTS

[0004] In order to make up for the above shortcomings, the utility model provides an anti -backflow vacuum compression bag, which aims at improving the problem that the looseness of the connecting part also leads to the sealing is not strict in the prior art, air will leak from the gap, which affects the air extraction efficiency, it is difficult to achieve the ideal vacuum degree, and the probability of air leakage of the compression bag is increased.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme: the anti -backflow vacuum compression bag, including vacuum bag, the inner wall middle part of vacuum bag is connected with inner layer bag, the outer wall all around of inner layer bag is connected with air bag, the outer wall left side of inner layer bag is connected with sealing strip, the top right side of vacuum bag is connected with air extraction pipe, the outer wall right side of air extraction pipe is connected with branch pipe, the inner wall middle part of branch pipe is fixedly connected with one-way valve, the inner wall bottom of branch pipe is fixedly connected with anti -backflow device, the outer wall bottom end of anti -backflow device is fixedly connected with connecting rod, the inner wall middle part of connecting rod is fixedly connected with sealing column, the outer wall all around of connecting rod is fixedly connected with spring two, the outer wall bottom of connecting rod is fixedly connected with air plug, the outer wall left side of vacuum bag is rotatably connected with connecting mechanism, the connecting mechanism is used for connecting fixed vacuum compression bag.

[0006] Further description of the above technical scheme:

[0007] The connecting mechanism comprises a fixed frame one, the fixed frame one is rotationally connected to the left side of the outer wall of the vacuum bag, the left side of the inner wall of two fixed frame ones is rotationally connected with a rotating shaft, the front and rear ends of the outer wall of the rotating shaft are fixedly connected with a ratchet wheel, one side of the inner wall of the rotating shaft is fixedly connected with a connecting belt, the middle part of the inner wall of the fixed frame one is slidably connected with a pawl, the right side of the outer wall of the pawl is fixedly connected with a spring one, the top of the outer wall of the fixed frame one is rotationally connected with a pressing plate, the bottom of the outer wall of the pressing plate is fixedly connected with an adjusting plate, and the top of the outer wall of the fixed frame one is rotationally connected with a fixed frame two.

[0008] As a further description of the above technical solution:

[0009] The outer wall of the anti-backflow device is fixedly connected with a sealing gasket, and a plurality of exhaust holes are formed in the outer wall of the air plug.

[0010] As a further description of the above technical solution:

[0011] The outer wall of the air exhaust pipe is slidably connected with a connecting column, and the outer wall of the connecting column is slidably connected with a connecting column.

[0012] As a further description of the above technical solution:

[0013] The outer wall of the ratchet wheel is fixedly connected with a fixed plate, and the outer wall of the fixed plate is fixedly connected with a fixed plate.

[0014] As a further description of the above technical solution:

[0015] The other end of the connecting belt is fixedly connected with a fixed column, and the inner wall of the fixed column is rotationally connected with a pull ring.

[0016] As a further description of the above technical solution:

[0017] The outer wall of the sealing strip is slidably connected with a sealing block, and the outer wall of the sealing block is rotationally connected with a handle.

[0018] As a further description of the above technical solution:

[0019] The outer wall of the connecting column is rotationally connected with a fixed strip, and the outer wall of the fixed strip is rotationally connected with a fixed ring.

[0020] The utility model has the advantages of:

[0021] 1. The utility model discloses a connecting air extraction equipment to the vacuum bag air extraction, air exhaust, check valve prevents backflow, and the anti -backflow device allows gas exhaust, and spring pushes after air extraction gas plug and closes the passage, prevents air backflow, when the vacuum bag air extraction, the air bag contracts the support article, improves compression effect, and the sealing strip is located the outer wall of inner layer bag, is used for preliminary sealing, reduces the air into, improves the vacuum keeping and sealing performance, increases the sealing property of connecting position, prevents air from the gap leakage, improves the air extraction efficiency, reaches the ideal vacuum degree, reduces the compressed bag air leakage's probability.

[0022] 2. The utility model discloses a spring keeps the pawl in initial position and engages with the ratchet wheel, limits the movement of rotating shaft and connecting band, and the rotating shaft needs to overcome the spring force to make the pawl separate from the ratchet wheel, allows the ratchet wheel to rotate, realizes the winding and unwinding of connecting band, and the pressing plate is connected with fixed frame no. 1, and pushes the pawl when pressing, and overcomes the spring force to realize separation, controls the ratchet wheel rotation, and after releasing the pressing plate, the pawl restores the engagement state under the action of spring force, limits the ratchet wheel rotation, and fixed frame no. 2 provides support and positioning, ensures that the mechanism is stable and reliable. DRAWINGS

[0023] Figure 1 It is the perspective drawing of the anti -backflow vacuum compression bag of the utility model;

[0024] Figure 2 It is the partial top view of the anti -backflow vacuum compression bag of the utility model;

[0025] Figure 3 It is the structure split drawing of the anti -backflow vacuum compression bag of the utility model;

[0026] Figure 4 It is the partial structure split drawing of the anti -backflow vacuum compression bag of the utility model;

[0027] Figure 5 It is the connecting mechanism split drawing of the anti -backflow vacuum compression bag of the utility model.

[0028] Legend:

[0029] 1, vacuum bag;2, connecting mechanism;201, fixed frame no. 1;202, rotating shaft;203, ratchet wheel;204, connecting band;205, pawl;206, spring no. 1;207, pressing plate;208, adjusting plate;209, fixed frame no. 2;3, inner layer bag;4, air bag;5, sealing strip;6, air extraction pipe;7, branch pipe;8, check valve;9, anti -backflow device;10, connecting rod;11, sealing column;12, spring no. 2;13, gas plug;14, sealing pad;15, exhaust hole;16, connecting column;17, spout no. 1;18, fixed plate;19, spout no. 2;20, fixed column;21, pull ring;22, sealing block;23, handle;24, fixed strip;25, fixed ring. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0031] With reference to Figure 1 , Figure 3 and Figure 4 , the utility model provides an embodiment: prevent the vacuum compression bag of reflux, including vacuum bag 1, the inner wall middle part of vacuum bag 1 is fixedly connected with inner bag 3, the outer wall all around of inner bag 3 is fixedly connected with air bag 4, the outer wall left side of inner bag 3 is fixedly connected with sealing strip 5, the top right side of vacuum bag 1 is connected with suction pipe 6, the outer wall right side of suction pipe 6 is connected with branch pipe 7, the inner wall middle part of branch pipe 7 is fixedly connected with check valve 8, the inner wall bottom of branch pipe 7 is fixedly connected with prevent the reflux device 9, the outer wall bottom end of prevent the reflux device 9 is fixedly connected with connecting rod 10, the inner wall middle part of connecting rod 10 is fixedly connected with sealing column 11, the outer wall all around of connecting rod 10 is fixedly connected with spring two 12, the outer wall bottom of connecting rod 10 is fixedly connected with air plug 13, the outer wall left side of vacuum bag 1 is rotatably connected with connecting mechanism 2, and connecting mechanism 2 is used to rotatably connect fixed vacuum compression bag, the outer wall bottom of prevent the reflux device 9 is fixedly connected with sealing pad 14, and a plurality of exhaust holes 15 are formed in the outer wall all around of air plug 13;

[0032] Specifically, through connecting the air extraction equipment, the vacuum bag 1 is extracted, the air flows from the bag to the outside, the check valve 8 on the branch pipe 7 allows the air to be discharged in the air extraction process, prevents the outside air from flowing back, the prevent the reflux device 9 allows the gas to be discharged when extracting air, after the air extraction is finished, the spring pushes the air plug 13 to close the passage and prevent the air from flowing back, when the vacuum bag 1 extracts air, the air bag 4 shrinks to support the articles in the bag and improve the compression effect, the sealing strip 5 is located on the outer wall of the inner bag 3 and is used to preliminarily seal the inner bag 3, reduce the air entering, improve the vacuum keeping and sealing performance, the outer wall left side of vacuum bag 1 is rotatably connected with connecting mechanism 2, and connecting mechanism 2 is used to connect fixed vacuum compression bag, the sealing pad 14 at the bottom of prevent the reflux device 9 enhances the sealing property when being connected with other components, and the exhaust hole 15 of air plug 13 is used to discharge the gas when extracting air.

[0033] With reference to Figure 1 , Figure 2 and Figure 5The connecting mechanism 2 comprises a fixed frame 201 rotatably connected to the left outer wall of the vacuum bag 1, two inner walls of the fixed frame 201 are rotatably connected with rotating shafts 202, outer walls of the front and rear ends of the rotating shafts 202 are fixedly connected with ratchets 203, inner walls of one side of the rotating shafts 202 are fixedly connected with connecting belts 204, inner walls of the middle part of the fixed frame 201 are slidably connected with ratchet claws 205, outer walls of the right side of the ratchet claws 205 are fixedly connected with springs 206, outer walls of the bottom of the pressing plate 207 are fixedly connected with adjusting plates 208, outer walls of the top of the fixed frame 201 are rotatably connected with fixed frames 209, the connecting column 16 on the air exhaust pipe 6 can adjust the position through the plug 17, which is convenient for connecting and fixing with other equipment, the plug 19 on the fixed plate 18 beside the ratchet 203 can fix the position of the ratchet 203, and the winding and unwinding state of the connecting belt 204 is determined.

[0034] Specifically, the spring 206 keeps the ratchet claw 205 in the initial position and engages with the ratchet 203 to limit the movement of the rotating shaft 202 and the connecting belt 204. To rotate the rotating shaft 202, the spring force needs to be overcome to separate the ratchet claw 205 from the ratchet 203, allowing the ratchet 203 to rotate and realizing the winding and unwinding of the connecting belt 204. The pressing plate 207 is connected with the fixed frame 201, and when pressed, the adjusting plate 208 drives the ratchet claw 205 to overcome the spring force to realize separation and control the rotation of the ratchet 203. After the pressing plate 207 is released, the ratchet claw 205 restores the engagement state under the action of the spring force, limiting the rotation of the ratchet 203. The fixed frame 209 provides support and positioning to ensure that the mechanism is stable and reliable. The outer walls of the front and rear sides of the air exhaust pipe 6 are slidably connected with the connecting columns 16, the outer walls of the right ends of the two connecting columns 16 are penetrated by the plug 17, the outer walls of the sides away from each other of the ratchets 203 are fixedly connected with the fixed plates 18, and the outer walls of one side of the fixed plates 18 are penetrated by the plug 19.

[0035] Referring to Figure 1 , Figure 2 and Figure 3 , the other end of the connecting belt 204 is fixedly connected with a fixed column 20, the inner wall of the middle part of the fixed column 20 is rotatably connected with a pull ring 21, the outer wall of one end of the sealing strip 5 is slidably connected with a sealing block 22, the outer wall of one side of the sealing block 22 is rotatably connected with a handle 23, the outer wall of the connecting column 16 is rotatably connected with a fixed strip 24, and the outer walls of the sides away from each other of the fixed strip 24 are rotatably connected with fixed rings 25.

[0036] Specifically, the pull ring 21 on the fixed column 20 at the other end of the connecting band 204 is convenient to operate, the sealing block 22 on the sealing strip 5 slides by means of the handle 23, which is used to enhance the sealing effect of the inner bag 3, the fixed strip 24 rotating on the connecting column 16 and the fixed ring 25 rotating at the end of the fixed strip 24 can be used to fix the air suction pipe 6 or connect other auxiliary components, realize the stability and function expansion of the air suction structure, and each component cooperates to ensure the anti-backflow and air suction sealing function of the vacuum compression bag.

[0037] Working principle: The vacuum bag 1 is subjected to air suction by the air suction equipment connected with the air suction pipe 6, air flows from the inside of the vacuum bag 1 to the outside through the air suction pipe 6, the one-way valve 8 on the branch pipe 7 allows air to flow from the branch pipe 7 to the air suction pipe 6 and then to the outside of the bag during the air suction process, ensuring smooth air suction, due to the structural characteristics of the one-way valve 8, only allowing one-way gas flow, when the air suction equipment stops working, preventing external air from flowing back into the vacuum bag 1 through the air suction pipe 6 and the branch pipe 7, the anti-backflow device 9 is the main structure for preventing gas backflow, when air suction, the air plug 13 will be pushed downward by the gas, so that the gas can be discharged from the branch pipe 7 through the anti-backflow device 9, spring two 12 is connected to the connecting rod 10, when the air plug 13 moves downward during air suction, spring two 12 will be stretched, when air suction is completed, there is no pushing force of the gas, spring two 12 will restore to its original state, pushing the air plug 13 to move upward, the air plug 13 tightly cooperates with the sealing column 11 under the action of spring two 12, closing the passage of the anti-backflow device 9, preventing external air from entering the vacuum bag 1 through the branch pipe 7, thereby realizing the anti-backflow function, the air bag 4 around the outer wall of the inner bag 3 will gradually shrink during the air suction process of the vacuum bag 1 as the air pressure in the bag decreases, the air bag 4 can support the inside of the vacuum bag 1 to a certain extent, so that the vacuum bag 1 will not be excessively collapsed to squeeze and damage the internal items after air suction; on the other hand, the air bag 4 can further reduce the space in the bag after shrinking, improving the compression effect, the sealing strip 5 is located on the left side of the outer wall of the inner bag 3, after the items are placed in the inner bag 3, the inner bag 3 can be preliminarily sealed by the sealing strip 5, reducing the air entering the inner bag 3, assisting the vacuum bag 1 to better maintain the vacuum state, improving the overall sealing performance;

[0038] The spring 206 keeps the pawl 205 in the initial position, and the pawl 205 is in engagement with the ratchet wheel 203, and the ratchet wheel 203 cannot rotate at will due to the limitation of the pawl 205, thereby the rotating shaft 202 is also limited to be unable to rotate, and the connecting belt 204 connected to the rotating shaft 202 also keeps the fixed state, when the rotating shaft 202 needs to rotate, for example, the connecting belt 204 needs to be retracted or extended, etc., the pawl 205 needs to be separated from the ratchet wheel 203 by overcoming the elastic force of the spring 206, because the pawl 205 is separated from the ratchet wheel 203, the rotation of the ratchet wheel 203 is no longer limited, at this time, the ratchet wheel 203 can rotate around the axis of the rotating shaft 202, thereby driving the rotating shaft 202 to rotate, realizing the retraction and extension of the connecting belt 204, etc., the pressing plate 207 is rotationally connected with the fixed frame 201, when the pressing plate 207 is pressed, the pressing plate 207 rotates around the rotation connection point of the pressing plate 207 and the fixed frame 201, the outer wall bottom of the pressing plate 207 is fixedly connected with the adjusting plate 208, the rotation of the pressing plate 207 drives the adjusting plate 208 to move, the adjusting plate 208 contacts the pawl 205 and pushes the pawl 205 in the movement process, so that the pawl 205 slides to the right against the elastic force of the spring 206, thereby realizing the separation of the pawl 205 and the ratchet wheel 203, and achieving the purpose of controlling the rotation of the ratchet wheel 203, when the pressing plate 207 is released, the pawl 205 returns to the state of engagement with the ratchet wheel 203 under the action of the spring 206, and the rotation of the ratchet wheel 203 is limited again, the fixed frame 209 is rotationally connected to the outer wall top of the fixed frame 201, and can play the role of auxiliary support and positioning, and provides certain positioning and limiting function for the rotation operation of the pressing plate 207, ensures the movement of the pressing plate 207 in a reasonable range, and guarantees the reliability and stability of the whole mechanism.

[0039] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and not for limiting the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application, should be included in the protection scope of the present application.

Claims

1. Anti-reflux vacuum compression bag comprising a vacuum bag (1), characterized in that: The inner wall middle part of the vacuum bag (1) is fixedly connected with an inner layer bag (3), the outer wall periphery of the inner layer bag (3) is fixedly connected with an air bag (4), the outer wall left side of the inner layer bag (3) is fixedly connected with a sealing strip (5), the top right side of the vacuum bag (1) is communicated with a air pipe (6), the outer wall right side of the air pipe (6) is communicated with a branch pipe (7), the inner wall middle part of the branch pipe (7) is fixedly connected with a one-way valve (8), the inner wall bottom of the branch pipe (7) is fixedly connected with an anti-reflux device (9), the outer wall bottom end of the anti-reflux device (9) is fixedly connected with a connecting rod (10), the inner wall middle part of the connecting rod (10) is fixedly connected with a sealing column (11), the outer wall periphery of the connecting rod (10) is fixedly connected with spring two (12), the outer wall bottom of the connecting rod (10) is fixedly connected with an air plug (13), the outer wall left side of the vacuum bag (1) is rotatably connected with a connecting mechanism (2), and the connecting mechanism (2) is used for connecting and fixing the vacuum compression bag.

2. The anti-reflux vacuum compression bag of claim 1, wherein: The connecting mechanism (2) comprises a fixed frame one (201), the fixed frame one (201) is rotatably connected to the outer wall left side of the vacuum bag (1), the inner wall left side of two fixed frame one (201) is rotatably connected with a rotating shaft (202), the outer wall front and rear end of the rotating shaft (202) is fixedly connected with a ratchet wheel (203), the inner wall one side of the rotating shaft (202) is fixedly connected with a connecting belt (204), the inner wall middle part of the fixed frame one (201) is slidably connected with a pawl (205), the outer wall right side of the pawl (205) is fixedly connected with spring one (206), the outer wall top of the fixed frame one (201) is rotatably connected with a pressing plate (207), the outer wall bottom of the pressing plate (207) is fixedly connected with an adjusting plate (208), and the outer wall top of the fixed frame one (201) is rotatably connected with a fixed frame two (209).

3. The anti-reflux vacuum compression bag of claim 1, wherein: The outer wall bottom of the anti-reflux device (9) is fixedly connected with a sealing gasket (14), and the outer wall periphery of the air plug (13) is provided with a plurality of air vent holes (15).

4. The anti-reflux vacuum compression bag of claim 1, wherein: The outer wall front and back sides of the air pipe (6) are slidably connected with connecting columns (16), and the outer wall right ends of two connecting columns (16) are penetrated by plug stems one (17).

5. The anti-reflux vacuum compression bag of claim 2, wherein: The outer wall sides away from each other of the ratchet wheel (203) are fixedly connected with fixed plates (18), and the outer wall one side of the fixed plate (18) is penetrated by a plug stem two (19).

6. The anti-reflux vacuum compression bag of claim 2, wherein: The other end of the connecting belt (204) is fixedly connected with a fixed column (20), and the inner wall middle part of the fixed column (20) is rotatably connected with a pull ring (21).

7. The anti-reflux vacuum compression bag of claim 1, wherein: The outer wall one end of the sealing strip (5) is slidably connected with a sealing block (22), and the outer wall one side of the sealing block (22) is rotatably connected with a handle (23).

8. The anti-reflux vacuum compression bag of claim 4, wherein: The outer wall of the connecting column (16) is rotatably connected with a fixed strip (24), and the outer wall sides away from each other of the fixed strip (24) are rotatably connected with a fixed ring (25).

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