CN218097433U

CN218097433U - Valve bag with one-way non return function

Info

Publication number: CN218097433U
Application number: CN202222601181.6U
Authority: CN
Inventors: 荣春海; 宋飞; 王超; 张翔
Original assignee: Sichuan Luhang Building Engineering Co ltd
Current assignee: Sichuan Luhang Building Engineering Co ltd
Priority date: 2022-09-30
Filing date: 2022-09-30
Publication date: 2022-12-20
Anticipated expiration: 2032-09-30

Abstract

The utility model discloses a self-sealing bag with one-way non-return function, which comprises an outer bag body and an inner contraction bag body; the inner contraction bag body consists of an upper contraction bag surface and a lower contraction bag surface; the shrinkable bag body is arranged at the upper position of the center of the outer bag body and is respectively communicated with the outer bag body in a sealing mode; the upper contraction bag surface and the lower contraction bag surface form an injection port between the parts outside the outer bag body, and the part inside the bag body forms a back pressure check port; the utility model discloses saved the expense of capper and the process of artifical sealing, improved the operation work efficiency greatly. The self-sealing bag adopting the structure is full and has better sealing effect when the more material (air or water) is filled. In the process of using smooth blasting, the blasting powder can serve as an air interval function in a powder charging structure and also serve as a plugging function of a blast hole orifice water bag, and the blasting powder is convenient to operate, simple in structure, easy and convenient to manufacture, and high in operability and applicability.

Description

Valve bag with one-way non return function

Technical Field

The utility model relates to a valve bag, particularly relate to a valve bag with one-way non return function.

Background

In modern tunnel construction, smooth blasting technology is widely applied to tunnel excavation to control tunnel sections, reduce the amount of super-underexcavation and reduce the vibration damage to surrounding rocks caused by peripheral hole blasting. In order to achieve a good smooth blasting effect, an air-spaced layered charging technology has become a popular method. The construction unit is to accelerate the construction progress, in the tunnel blasting charging process, a bamboo chip binding method, a backward charging method and the like are generally adopted, and the bamboo chip binding method has extremely few field construction applications due to complicated working procedures; the reverse charging method is that the surface of the gun rod is reversely marked with dimensions so as to ensure the charging accuracy as much as possible; however, in consideration of site construction conditions and environments, field operators generally use an estimation method to carry out reverse charging, and the accuracy of charging positions is difficult to control, so that the results of uneven explosive energy distribution, poor explosive effect and the like are caused. In addition, in the explosive charging process, the construction unit is to accelerate the construction progress, and the blast hole is basically not blocked or is not blocked in a standard manner, so that the blasting energy loss of the explosive package is large, the blasting effect is poor, the utilization rate of the blast hole is low, and the like. Therefore, in order to overcome the defects and realize cost reduction and efficiency improvement, a self-sealing bag with a one-way non-return function is developed, and air can be injected to serve as an air spacing bag in a charging structure, and water can be injected to serve as a water bag for plugging a blast hole.

SUMMERY OF THE UTILITY MODEL

Therefore, in order to solve the above-mentioned not enough, the utility model discloses an easily load the valve bag that has one-way non return function.

The self-sealing bag of the utility model is characterized in that; comprises an outer bag body (1) and an inner contraction bag body (6); the inner shrinkable bag body (6) consists of an upper shrinkable bag surface (1) and a lower shrinkable bag surface (2); the shrinkable bag body (6) is arranged at the upper position of the center of the outer bag body (1) and is respectively communicated with the outer bag body in a sealing way; an injection port (4) is formed between the upper contraction bag surface (2) and the part of the lower contraction bag surface (3) which is positioned outside the outer bag body (1), and a back pressure check port (5) is formed at the part which is positioned inside the outer bag body (1). The air-filled explosive is suitable for smooth blasting, and air is injected to serve as an air spacing bag in the explosive charging structure, and water is also injected to serve as a water bag for plugging blast holes.

The self-sealing bag of the utility model is characterized in that; the outer bag body (1) and the inner contraction bag body (6) which is bilaterally symmetrical are made of antistatic plastics.

The self-sealing bag of the utility model is characterized in that; an injection port (4) is formed between the parts of the upper shrinkage bag face (2) and the lower shrinkage bag face (3) which are positioned outside the outer bag body (1), the upper shrinkage bag face (2) and the lower shrinkage bag face (3) at the position of the injection port (4) are of a long-short structure, the length difference of the two shrinkage bag faces is 5.0mm, and related materials can be conveniently opened and injected.

The self-sealing bag of the utility model is characterized in that; the length of the contraction bag body (6) in the outer bag body (1) is 20 percent of the total length of the outer bag body (1).

The self-sealing bag of the utility model is characterized in that; the material injected into the self-sealing bag can be air or water.

The self-sealing bag of the utility model is characterized in that; the contraction bag body (6) positioned at the inner part of the outer bag body (1) forms a back pressure check opening (5), after the materials are injected, the single surfaces of the two contraction bag bodies form a pressure difference in an extrusion type mode, so that a back pressure state structure is formed, and the check function is achieved.

The utility model has the advantages of as follows: (1) The structure is integrally formed, the structure is simple, the cost of a sealing machine and the manual sealing process are saved, and the work efficiency is greatly improved; (2) The self-sealing bag adopting the structure is filled with more filling materials, and is more full and has better sealing effect. In the process of using smooth blasting, air can be injected to serve as an air spacing bag in the charging structure, so that the operation is convenient, the positioning is accurate, and the work efficiency is improved; (3) By adopting the self-sealing bag with the structure, water is injected to serve as the water bag for plugging the blast hole, and water mist generated by the water in the water bag during blasting can reduce the concentration of harmful dust and harmful gas after blasting and improve the working environment; (4) The anti-static plastic is adopted for manufacturing, can be widely applied to blasting operation under coal mines and gas tunnels, and can prevent gas burning and explosion safety accidents caused by static electricity generated in the using process.

Drawings

FIG. 1 is an elevation view of the structure of the present invention;

FIG. 2 is a cross-sectional view taken along line I-I of FIG. 1;

wherein: 1. an outer bag body 2, an upper shrinkage bag face 3, a lower shrinkage bag face 4, an injection port 5, a back pressure check port 6 and a shrinkage bag body.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings 1-2, wherein the technical solutions in the embodiments of the present invention are clearly and completely described, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts all belong to the protection scope of the present invention.

The utility model provides an easy-to-fill self-sealing bag with one-way non-return function through improvement, as shown in figures 1-2, the self-sealing bag comprises an outer bag body 1 and an inner contraction bag body 6; the inner contraction bag body 6 consists of an upper contraction bag surface 1 and a lower contraction bag surface 2; the collapsible bag body 6 is disposed at the central upper position of the outer bag body 1.

As shown in fig. 1, the outer bag body 1 and the inner left-right symmetrical shrinkage bag body 6 are made of antistatic plastic.

As shown in fig. 1, the length of the contraction bag body 6 inside the outer bag body 1 is 20% of the total length of the outer bag body 1.

As shown in fig. 2, the inner shrinkable bag body 6 is composed of an upper shrinkable bag surface 1 and a lower shrinkable bag surface 2; the injection port 4 is formed by symmetrically arranging the upper shrink bag surface 2 and the lower shrink bag surface 3 between the parts of the outer bag body 1.

As shown in fig. 2, the upper and lower

shrink bag surfaces

2 and 3 at the position of the injection port 4 are of a long-short structure, and the length difference between the two shrink bag surfaces is 5.0mm, so that the related materials can be conveniently opened and injected.

As shown in fig. 2, the material injected into the self-sealing bag can be air or water.

This can be implemented as follows; as shown in fig. 2, the inlet 4 is first separated vertically, and the separated part is composed of an upper shrink bag surface 2 and a lower shrink bag surface 3. Related materials are directly injected through the injection port 4, and the material can reversely extrude the check port 5 after entering the interior; internal pressure can be rapidly formed in the bag body along with the injection of the materials, under the action of the internal pressure, pressure difference can be formed on single surfaces of the upper and lower shrinkage bag surfaces of the check opening 5, the bag is in an extrusion type shape, and the upper and lower shrinkage bag surfaces can be tightly bonded together, so that the one-way check function is achieved; the more the material is filled, the fuller the valve bag is and the better the sealing effect is.

The utility model has the advantages of as follows:

(1) The structure is integrated, the structure is simple, the manufacture is portable, the cost of a sealing machine and the manual opening dividing process are saved, and the operation efficiency is greatly improved;

(2) The self-sealing bag adopting the structure is filled with more filling materials, and is more full and has better sealing effect. In the process of using smooth blasting, air can be injected to serve as an air spacing bag in the charging structure, the operation is convenient, the positioning is accurate, and the work efficiency is improved;

(3) By adopting the self-sealing bag with the structure, when injected water is used as a water bag for plugging the orifice of a blast hole, water mist generated after blasting can reduce the concentration of harmful dust and harmful gas after blasting, and improve the working environment.

(4) The anti-static plastic is adopted for manufacturing, so that the anti-static plastic can be widely applied to blasting operation under coal mines and gas tunnels, and gas burning and explosion safety accidents caused by static electricity generated in the using process can be prevented;

the previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A self-sealing bag with one-way non-return function is characterized in that; comprises an outer bag body (1) and an inner contraction bag body (6); the inner shrinkable bag body (6) consists of an upper shrinkable bag surface (2) and a lower shrinkable bag surface (3); the shrinkable bag body (6) is arranged at the upper position of the center of the outer bag body (1) and is respectively communicated with the outer bag body in a sealing mode; an injection port (4) is formed between the upper contraction bag surface (2) and the part of the lower contraction bag surface (3) which is positioned outside the outer bag body (1), and a back pressure check port (5) is formed at the part which is positioned inside the outer bag body (1).

2. The valve bag with one-way non-return function according to claim 1, wherein; the outer bag body (1) and the inner symmetrical shrinkage bag body (6) are made of antistatic plastics.

3. The valve bag with one-way non-return function according to claim 1, wherein; an injection port (4) is formed between the parts of the upper shrinkage bag surface (2) and the lower shrinkage bag surface (3) which are positioned outside the outer bag body (1), the upper shrinkage bag surface (2) and the lower shrinkage bag surface (3) at the position of the injection port (4) are of a one-long-one-short structure, the length difference of the two shrinkage bag surfaces is 5.0mm, and the opening and the injection of related materials are convenient.

4. The valve bag with one-way non-return function according to claim 1, wherein; the length of the contraction bag body (6) in the outer bag body (1) is 20 percent of the total length of the outer bag body (1).

5. The valve bag with one-way non-return function according to claim 1, wherein; the material injected into the self-sealing bag can be air or water.

6. The valve bag with one-way non-return function according to claim 1, wherein; the shrinkage bag body (6) located in the inner part of the outer bag body (1) forms a back pressure check opening (5), after the completion material is injected, the single surfaces of the two shrinkage bag bodies can form pressure difference to form an extrusion type shape, so that a back pressure state structure is formed, and a check function is achieved.