CN219296081U

CN219296081U - Environment-friendly dustproof thermal contraction bag convenient to tear and pull

Info

Publication number: CN219296081U
Application number: CN202222781653.0U
Authority: CN
Inventors: 朱祥华
Original assignee: Foshan Yuelong Packaging Products Co ltd
Current assignee: Foshan Yuelong Packaging Products Co ltd
Priority date: 2022-10-21
Filing date: 2022-10-21
Publication date: 2023-07-04
Anticipated expiration: 2032-10-21

Abstract

The utility model belongs to the technical field of packaging, in particular to an environment-friendly dustproof heat-shrinkable bag convenient to tear, which comprises a bag body and a sealing zipper; the sealing zipper comprises a sub-chain and a main chain, a first air bag is fixed at the top end of the inner wall of the rear side of the bag body, a second air bag is fixed at the outer periphery of the bag body, and an exhaust mechanism is arranged at the outer periphery of the bag body; in the process of opening the heat shrinkage bag, the second air bag is pressed to enable the first air bag to bulge, and at the moment, the bag body is easy to open manually; in the process of packaging a certain object, when the sealing zipper is closed by manual pressing, gas is conveyed into the second air bag again, so that the function of sealing the certain object can be realized, the bag can be used repeatedly, and the waste of resources is effectively avoided; in the process of discharging the gas left in the bag body, the one-way valve is opened to discharge the gas in the plastic capsule shell out of the body, so that the sealing and dust-proof functions of the bag body are realized, and the sealing performance and dust-proof effect of the bag body are improved.

Description

Environment-friendly dustproof thermal contraction bag convenient to tear and pull

Technical Field

The utility model relates to the technical field of packaging, in particular to an environment-friendly dustproof heat-shrinkable bag convenient to tear.

Background

The heat-shrinkable bag is a special multilayer co-extruded polyolefin bag, is suitable for packaging food, beverage, electric appliances, medicines, daily necessities and the like, and can be torn quickly when being used by consumers for conveniently storing and taking out contents, so that a structure convenient to tear can be added on the bag body.

The prior heat-shrinkable bag is generally provided with V-shaped tearing openings at the edge of the belt body, namely the hot air belt for sealing the bag body, so as to tear the heat-shrinkable bag, thereby storing and taking out the content.

The existing heat-shrinkable bag is difficult to tear even if the tearing opening is formed, so that great influence is caused to a user, even if the packaging bag is torn, the tearing track of the packaging bag does not form a straight line, the torn opening is not attractive enough, a small amount of gas is sometimes left in the bag body after the existing heat-shrinkable bag is used for sealing a certain object, and then the gas left in the bag body is discharged, so that the effect of dust-proof sealing on the object in the bag body can be achieved; therefore, an environment-friendly dustproof heat-shrinkable bag convenient to tear is provided for solving the problems.

Disclosure of Invention

In order to overcome the defects in the prior art and solve the problems in the prior art, the utility model provides an environment-friendly dustproof heat-shrinkable bag convenient to tear.

The technical scheme adopted for solving the technical problems is as follows: the utility model relates to an environment-friendly dustproof heat-shrinkable bag convenient to tear, which comprises a bag body and a sealing zipper; the sealed zipper comprises a sub-chain and a main chain, wherein the sub-chain is fixed on the inner wall of the front side of the bag body, the main chain is fixed on the inner wall of the rear side of the bag body, the sub-chain and the main chain are symmetrically arranged, a first air bag is fixed at the top end of the inner wall of the rear side of the bag body, a second air bag is fixed on the peripheral side of the bag body, an air pipe is connected between the first air bag and the second air bag, the air pipe is arranged on the inner wall of the rear side of the bag body, the air pipe is arranged above the main chain, and in the process of opening the heat shrinkage bag, the second air bag is pressed to convey air into the first air bag, so that the first air bag bulges, and the bag body is easy to open manually at the moment; in the process of packaging a certain object, the sealing zipper and the first air bag are manually pressed, so that the sealing zipper is closed, and meanwhile, the air in the first air bag is conveyed into the second air bag again, namely, the sealing of the bag body is realized.

Preferably, the periphery side of the bag body is provided with exhaust mechanism, exhaust mechanism includes the plastics capsule casing, plastics capsule casing rigid coupling is in the periphery side of the bag body, be provided with the piston in the plastics capsule casing, install the piston rod on the piston, just the tip of piston rod passes plastics capsule casing and handle connection, in the in-process of leaving behind gaseous in the exhaust bag body, the manual gas that makes leave behind in the bag body presses and carries in the plastics capsule casing, opens the check valve, discharges the gas in the plastics capsule casing outside through the blast pipe, has realized sealing dustproof function to some things in the time, has also improved the leakproofness and the dustproof effect of the bag body.

Preferably, a spring is connected between the inner wall of the plastic capsule shell and the piston, the spring is sleeved on the piston rod, the piston is pushed to move away from the second exhaust port by extrusion of the residual gas in the bag body in the process of exhausting the residual gas of the bag body, the piston forces the spring to shrink and simultaneously drives the piston rod to move, at the moment, the one-way valve is opened, so that the gas in the bag body is exhausted, and the sealing performance and the dustproof effect on the bag body are improved.

Preferably, a first exhaust port is formed in one side surface of the plastic capsule shell, and an exhaust pipe is arranged in the first exhaust port, so that gas in the bag body can be effectively exhausted.

Preferably, the second exhaust port is formed in the bag body, the second exhaust port and the piston are arranged on the same straight line, and the size of the opening of the second exhaust port is the same as that of the piston.

Preferably, the bag body is made of polyethylene plastic as a main material and is mixed with a photodegradant and a calcium carbonate material, and the thermal shrinkage bag made of the material is convenient to degrade under sunlight and improves the environmental protection performance of the device.

The utility model has the advantages that:

1. in the process of opening the heat shrinkage bag, the second air bag is pressed, and the air is conveyed into the first air bag, so that the first air bag is inflated, and the bag body is easily opened manually; in the process of packaging a certain object, the sealing zipper and the first air bag are manually pressed, so that the sealing zipper is closed, and meanwhile, the air in the first air bag is conveyed into the second air bag again, namely, the sealing of the bag body is realized, the structure design is convenient for repeatedly opening or closing the bag body, the function of sealing the certain object can be realized, the repeated use of the bag is realized, and the waste of resources is effectively avoided;

2. in the process of exhausting the gas left in the bag body, the utility model manually presses and conveys the gas left in the bag body into the plastic capsule shell, opens the one-way valve, and exhausts the gas in the plastic capsule shell out of the body through the exhaust pipe, thereby realizing the sealing and dustproof functions of certain objects and improving the sealing performance and dustproof effect of the bag body.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained from these drawings without inventive faculty for a person skilled in the art.

Fig. 1 is a schematic overall front view of a three-dimensional structure of a first embodiment;

FIG. 2 is a schematic top perspective view of the first embodiment;

FIG. 3 is an enlarged perspective view of an exhaust mechanism according to the first embodiment;

fig. 4 is a schematic view of the internal three-dimensional structure of the front side of the bag body according to the first embodiment;

FIG. 5 is a schematic view showing the internal three-dimensional structure of the rear side of the bag according to the first embodiment;

fig. 6 is a schematic front view of a third embodiment.

In the figure: 1. a bag body; 2. sealing the zipper; 201. a sub-chain; 202. a master chain; 3. a first air bag; 4. a second air bag; 5. an air pipe; 6. a plastic capsule shell; 7. a piston; 8. a piston rod; 9. a handle; 10. a spring; 11. a first exhaust port; 12. an exhaust pipe; 13. a second exhaust port 13; 14. a one-way valve; 15. and (5) a sealing strip.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Example 1

Referring to fig. 1 to 5, an environment-friendly dustproof heat-shrinkable bag convenient to tear comprises a bag body 1 and a sealing zipper 2; the sealing zipper 2 comprises a sub-chain 201 and a main chain 202, wherein the sub-chain 201 is fixed on the inner wall of the front side of the bag body 1, the main chain 202 is fixed on the inner wall of the rear side of the bag body 1, the sub-chain 201 and the main chain 202 are symmetrically arranged, a first air bag 3 is fixed at the top end of the inner wall of the rear side of the bag body 1, a second air bag 4 is fixed on the peripheral side of the bag body 1, an air pipe 5 is connected between the first air bag 3 and the second air bag 4, the air pipe 5 is arranged on the inner wall of the rear side of the bag body 1, and the air pipe 5 is arranged above the main chain 202; in the initial state, the second air bag 4 bulges and contains gas, the first air bag 3 is flat and contains no gas, in the process of opening the heat shrinkage bag, the second air bag 4 is pressed to convey the gas into the first air bag 3 through the air pipe 5, so that the first air bag 3 bulges, at the moment, the bag body 1 is easily opened manually, namely, the sub-chain 201 and the main chain 202 on the bag body 1 are easily separated; in the process of packaging a certain object, the sub-chain 201 and the main chain 202 on the bag body 1 are manually contacted, then the sealing zipper 2 and the first air bag 3 are manually pressed, so that when the sealing zipper 2 is closed, the air of the first air bag 3 is conveyed into the second air bag 4 again through the air pipe 5, namely, the sealing of the bag body 1 is realized, the bag body 1 is conveniently and repeatedly opened or closed by the structural design, the sealing function of the certain object can be realized, the repeated use of the bag is realized, and the waste of resources is effectively avoided.

The outer peripheral side of the bag body 1 is provided with an exhaust mechanism, the exhaust mechanism comprises a plastic capsule shell 6, the plastic capsule shell 6 is fixedly connected to the outer peripheral side of the bag body 1, a piston 7 is arranged in the plastic capsule shell 6, a piston rod 8 is arranged on the piston 7, and the end part of the piston rod 8 penetrates through the plastic capsule shell 6 to be connected with a handle 9; after some object is packaged, if a small amount of gas remains in the bag body 1, the gas remaining in the bag body 1 needs to be exhausted at this time, so that the effect of dust-proof sealing on the object in the bag body 1 can be achieved; in the process of exhausting the gas left in the bag body 1, the gas left in the bag body 1 is manually led into the plastic capsule shell 6 through the second exhaust port 13, the extrusion piston 7 is pushed to leave the second exhaust port 13, at the same time, the one-way valve 14 is opened, the gas in the plastic capsule shell 6 is exhausted out of the shell through the exhaust pipe 12, and the sealing and dust-proof functions of something are realized, and meanwhile, the sealing performance and the dust-proof effect of the bag body 1 are also improved.

A spring 10 is connected between the inner wall of the plastic capsule shell 6 and the piston 7, and the spring 10 is sleeved on the piston rod 8; in the process of exhausting the residual gas in the bag body 1, the residual gas in the bag body 1 extrudes and pushes the piston 7 to move towards the direction far away from the second exhaust port 13, the piston 7 forces the spring 10 to shrink and simultaneously drives the piston rod 8 to move towards the direction far away from the second exhaust port 13, at the moment, the one-way valve 14 is opened, so that the gas in the bag body 1 can be effectively exhausted through the second exhaust port 13, and the sealing performance and the dustproof effect on the bag body 1 are improved.

A first exhaust port 11 is formed in one side surface of the plastic capsule shell 6, and an exhaust pipe 12 is arranged in the first exhaust port 11; during operation, the gas in the bag body 1 can be effectively discharged.

The bag body 1 is provided with a second exhaust port 13, the second exhaust port 13 and the piston 7 are arranged on the same straight line, and the opening size of the second exhaust port 13 is the same as the size of the piston 7; during operation, through this structure setting, improved the sealed effect of device.

The bag body 1 is made of polyethylene plastic as a main material and is mixed with a photodegradant and a calcium carbonate material; when the solar thermal shrinkage bag is in operation, the thermal shrinkage bag made of the material is convenient to degrade under sunlight, and the environmental protection performance of the device is improved.

Example two

Referring to fig. 6, in a first comparative example, as another embodiment of the present utility model, a sealing strip 15 is adhered to the inner wall of the second exhaust port 13; when the sealing device works, when some object is packaged, the piston 7 is enabled to tightly seal the second exhaust port 13, so that the sealing effect of the bag body 1 when some object is packaged is improved, and the sealing performance of the sealing device is further improved.

The working principle is that the existing heat-shrinkable bag is difficult to tear even if the tearing opening is formed, so that great influence is caused to a user, even if the packaging bag is torn, the tearing track of the packaging bag does not form a straight line, the torn opening is not attractive enough, a small amount of gas is sometimes left in the bag body 1 after the existing heat-shrinkable bag is used for sealing a certain object, and then the gas left in the bag body 1 is discharged, so that the effect of dust-proof sealing on the object in the bag body 1 can be achieved; therefore, an environment-friendly dustproof heat-shrinkable bag convenient to tear is provided for solving the problems; in the initial state, the second air bag 4 bulges and is filled with gas, the first air bag 3 is flat and is not filled with gas, and in the process of opening the heat shrinkage bag, the second air bag 4 is pressed to convey the gas into the first air bag 3 through the air pipe 5, so that the first air bag 3 bulges, and at the moment, the bag body 1 is easily opened manually; in the process of packaging a certain object, the sub-chain 201 and the main chain 202 on the bag body 1 are manually contacted, then the sealing zipper 2 and the first air bag 3 are manually pressed, so that the sealing zipper 2 is closed, and meanwhile, the air in the first air bag 3 is conveyed into the second air bag 4 again; after some object is packaged, if a small amount of gas remains in the bag body 1, the gas remaining in the bag body 1 needs to be exhausted at this time, so that the effect of dust-proof sealing on the object in the bag body 1 can be achieved; in the process of exhausting the gas left in the bag body 1, the gas left in the bag body 1 is manually led into the plastic capsule shell 6 through the second exhaust port 13, the extrusion piston 7 is pushed to leave the second exhaust port 13, at the same time, the one-way valve 14 is opened, the gas in the plastic capsule shell 6 is exhausted out of the shell through the exhaust pipe 12, and the sealing and dust-proof functions of something are realized, and meanwhile, the sealing performance and the dust-proof effect of the bag body 1 are also improved.

In the description of the present specification, the descriptions of the terms "one embodiment," "example," "specific example," and the like, mean 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 present 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.

The foregoing has shown and described the basic principles, principal features and advantages of the utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims.

Claims

1. An environment-friendly dustproof heat shrinkage bag convenient to tear and pull, which is characterized in that: comprises a bag body (1) and a sealing zipper (2); the sealing zipper (2) comprises a sub-chain (201) and a main chain (202), wherein the sub-chain (201) is fixed on the front side inner wall of the bag body (1), the main chain (202) is fixed on the rear side inner wall of the bag body (1), the sub-chain (201) and the main chain (202) are symmetrically arranged, a first air bag (3) is fixed on the top end of the rear side inner wall of the bag body (1), a second air bag (4) is fixed on the outer periphery side of the bag body (1), an air pipe (5) is connected between the first air bag (3) and the second air bag (4), the air pipe (5) is arranged on the rear side inner wall of the bag body (1), and the air pipe (5) is arranged above the main chain (202).

2. The environment-friendly dustproof heat-shrinkable bag convenient to tear and pull according to claim 1, wherein: the utility model discloses a bag body, including bag body (1), the periphery side of bag body (1) is provided with exhaust mechanism, exhaust mechanism includes plastics capsule casing (6), plastics capsule casing (6) rigid coupling is in the periphery side of bag body (1), be provided with piston (7) in plastics capsule casing (6), install piston rod (8) on piston (7), just the tip of piston rod (8) passes plastics capsule casing (6) and is connected with handle (9).

3. The environment-friendly dustproof heat-shrinkable bag convenient to tear and pull according to claim 2, wherein: a spring (10) is connected between the inner wall of the plastic capsule shell (6) and the piston (7), and the spring (10) is sleeved on the piston rod (8).

4. The environment-friendly dustproof heat-shrinkable bag convenient to tear and pull according to claim 2, wherein: a first exhaust port (11) is formed in one side face of the plastic capsule shell (6), an exhaust pipe (12) is arranged in the first exhaust port (11), and a one-way valve (14) is arranged on the exhaust pipe (12).

5. The environment-friendly dustproof heat-shrinkable bag convenient to tear and pull according to claim 1, wherein: the bag body (1) is provided with a second exhaust port (13), the second exhaust port (13) and the piston (7) are arranged on the same straight line, and the opening size of the second exhaust port (13) is the same as the size of the piston (7).

6. The environment-friendly dustproof heat-shrinkable bag convenient to tear and pull according to claim 5, wherein: the bag body (1) is made of polyethylene plastic as a main material and is mixed with a photodegradant and a calcium carbonate material.