Air bag type blast hole plugging structure

Abstract

The utility model relates to the technical field of blast hole plugging devices, and particularly discloses an air bag type blast hole plugging structure which comprises a grouting pipe fitting and an air bag, and the outer wall face of the grouting pipe fitting is coaxially sleeved with the air bag. The supporting component is located on the side, away from grout, of the air bag, one end of the supporting component is rotatably installed on the outer wall face of the grouting pipe fitting, and the other end of the supporting component extends towards the air bag; the pressurizing part is used for increasing pressure into the air bag and expanding the air bag to push the supporting part to rotate, so that the end, away from the grouting pipe fitting, of the supporting part abuts against the inner wall face of the blast hole; in the embodiment, the air bag is arranged to plug the blast hole, the contact area of the inner wall face of the blast hole and the air bag can be effectively increased, and the plugging performance is improved; and the supporting component can support the side, away from grout, of the air bag, axial deformation of the air bag in the blast hole can be limited, and normal grouting work of the blast hole is guaranteed.

Description

Technical Field

[0001] This utility model relates to the technical field of borehole plugging devices, and in particular to an airbag-type borehole plugging structure. Background Technology

[0002] Reference Figure 1 As shown, in the plugging operation of blast hole 1, it is often necessary to use a conical rubber plug 8 to fill the outer wall of the grouting pipe 2 and the inner wall of the blast hole 1 to plug the blast hole 1, ensure the grouting effect of the grouting pipe 2 on the inside of the blast hole 1, and prevent the grout from leaking out.

[0003] However, the contact area between the rubber plug 8 and the borehole 1 is limited, resulting in a poor sealing effect on the borehole 1 and even gaps, which affects the normal progress of the grouting operation. Utility Model Content

[0004] In view of the above problems, this utility model provides an airbag-type borehole sealing structure, the purpose of which is to limit the axial deformation of the airbag along the borehole and improve the sealing performance of the airbag on the borehole.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A bladder-type borehole sealing structure is provided, comprising: a grouting pipe and a bladder, the bladder being coaxially sleeved on the outer wall of the grouting pipe; a support member located on the side of the bladder away from the grout, one end of the support member being rotatably mounted on the outer wall of the grouting pipe, and the other end of the support member extending toward the bladder; and a pressurizing member for increasing pressure inside the bladder, causing the bladder to expand and push the support member to rotate, thereby bringing the end of the support member away from the grouting pipe against the inner wall of the borehole.

[0007] Furthermore, the structure also includes several fastening pins, which are disposed on the support member and located on the side of the support member away from the airbag.

[0008] Furthermore, along the depth direction of the borehole, several rows of fastening pins are provided on the support plate component, with the length of the fastening pins decreasing from the outside to the inside.

[0009] Furthermore, the supporting component is an arc-shaped plate.

[0010] Furthermore, the structure also includes: a mounting base disposed on the grouting pipe fitting, and a support component hinged to the mounting base.

[0011] Furthermore, the structure also includes: a first magnetic component and a second magnetic component capable of magnetic adsorption, the first magnetic component being disposed on the support component, and the second magnetic component being disposed on the outer wall surface of the airbag.

[0012] Furthermore, the structure also includes a pull rope, one end of which is connected to the side of the support component near the airbag, and the other end extends outward toward the borehole.

[0013] The beneficial effects of this utility model are as follows: In this utility model, by setting an airbag to seal the blast hole, the contact area between the inner wall surface of the blast hole and the airbag can be effectively increased, thereby improving the sealing performance; in addition, the supporting component can support the side of the airbag away from the grout, which can limit the axial deformation of the airbag along the blast hole and guide the radial deformation of the airbag along the blast hole; it can effectively reduce the possibility of gaps appearing between the outer wall surface of the airbag and the inner wall surface of the blast hole, ensuring the normal progress of the grouting work in the blast hole. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of an airbag used in the prior art to seal blast holes.

[0015] Figure 2 This is a schematic diagram of an airbag used to seal a blast hole, as provided in an embodiment of this application.

[0016] Figure 3 for Figure 2 Enlarged diagram of point A.

[0017] Figure 4 A side view of the support component provided in an embodiment of this application.

[0018] Among them, 1. blast hole; 2. grouting pipe fitting; 21. mounting base; 3. airbag; 4. support component; 5. fastening nail; 61. first magnetic component; 62. second magnetic component; 7. pull rope. Detailed Implementation

[0019] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0020] Reference Figure 2 and Figure 3 As shown in the figure, this application discloses an airbag-type borehole sealing structure, including: a grouting pipe 2 and an airbag 3, the airbag 3 being coaxially sleeved on the outer wall of the grouting pipe 2; a support member 4, located on the side of the airbag 3 away from the grout, one end of the support member 4 being rotatably mounted on the outer wall of the grouting pipe 2, and the other end of the support member 4 extending toward the airbag 3; and a pressurizing member, used to increase the pressure inside the airbag 3, inflating the airbag 3 and pushing the support member 4 to rotate, thereby bringing the end of the support member 4 away from the grouting pipe 2 against the inner wall of the borehole 1.

[0021] In practical use, when it is necessary to seal the borehole 1, the pressure is increased into the airbag 3 by the pressurizing component, which will inflate the airbag 3. During the inflation process, the airbag 3 pushes the support component 4 to rotate until the pressure inside the airbag 3 meets the production requirements. The airbag 3 not only seals the borehole 1, but also allows one end of the support component 4 to abut against the inner wall of the borehole 1. At this time, grouting is then performed into the borehole through the grouting pipe 2.

[0022] In this embodiment, by setting an airbag 3 to seal the blast hole 1, the contact area between the inner wall surface of the blast hole 1 and the airbag 3 can be effectively increased, thereby improving the sealing performance. During the grouting process of the blast hole 1, when one side of the airbag 3 is filled with grout, the grout will compress the airbag 3 axially. A support component 4 is set on the other side of the airbag 3. The support component 4 can support the side of the airbag 3 away from the grout, which can limit the axial deformation of the airbag 3 along the blast hole 1 and guide the radial deformation of the airbag 3 along the blast hole 1. This can reduce the possibility of gaps appearing between the outer wall surface of the airbag 3 and the inner wall surface of the blast hole 1, and ensure the normal progress of the grouting work of the blast hole 1.

[0023] Specifically, the pressurizing component can be an air pump, which blows air into the airbag 3 to increase the pressure inside the airbag 3.

[0024] Specifically, the pressurizing component can be a water pump, which delivers water into the airbag 3 to increase the pressure inside the airbag 3.

[0025] It is worth mentioning that Airbag 3 is made of rubber.

[0026] Understandably, the airbag 3 is connected to the pressurization component via a pipe fitting; the grouting pipe fitting 2 is connected to the discharge port of the grouting machine, and the grouting work is completed by the grouting machine.

[0027] Specifically, the structure also includes: several fastening nails 5, which are disposed on the support member 4 and located on the side of the support member 4 away from the airbag 3; during the process of the airbag 3 inflating and squeezing the support member 4 to rotate, the fastening nails 5 can be driven to insert into the inner wall of the borehole 1, further improving the stability of the support member 4 in supporting the airbag 3.

[0028] Reference Figure 4 As shown, along the depth direction of the borehole 1, several rows of fastening nails 5 are provided on the support plate component, and the length of the fastening decreases from the outside to the inside. The support component 4 is an arc-shaped plate. Through this design, the number of fastening nails 5 inserted into the inner wall of the borehole 1 can be effectively increased, further improving the support stability of the support component 4.

[0029] Specifically, the structure also includes: a mounting base 21, which is disposed on the grouting pipe 2, and a support component 4 which is hinged to the mounting base 21.

[0030] Preferably, the structure further includes: a first magnetic component 61 and a second magnetic component 62 capable of magnetic adsorption, wherein the first magnetic component 61 is disposed on the support component 4 and the second magnetic component 62 is disposed on the outer wall surface of the airbag 3.

[0031] Before the pressurizing component increases pressure inside the airbag 3, the airbag 3 is in a relaxed state. By setting the first magnetic component 61 and the second magnetic component 62, it can be ensured that the supporting component 4 covers a certain area of ​​the airbag 3. When the pressurizing component increases pressure inside the airbag 3, the airbag 3 can squeeze the supporting component 4, ensuring the normal operation of the support function.

[0032] It is worth mentioning that the first magnetic component 61 and the second magnetic component 62 can be neodymium iron boron permanent magnets; of course, during the process of the pressurizing component increasing the pressure inside the airbag 3, the first magnetic component 61 and the second magnetic component 62 can be misaligned to ensure that the airbag 3 can extend normally.

[0033] The structure also includes a pull rope 7, one end of which is connected to the side of the support component 4 near the airbag 3, and the other end extends outward toward the borehole 1.

[0034] When the grouting pipe needs to be removed, after the airbag 3 is depressurized, the staff can pull the rope 7 to remove the fastening nail 5 from the inner wall of the blast hole 1; of course, the support component 4 can also be poked with a stick outside the blast hole 1 to help the fastening nail 5 to be removed from the inner wall of the blast hole 1.

[0035] Those skilled in the art will understand that although preferred embodiments of the present invention have been described, those skilled in the art, once they learn the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention. Clearly, those skilled in the art can make various alterations and modifications to the present invention without departing from its spirit and scope. Thus, if these modifications and modifications of the present invention fall within the scope of the machine equivalents of the claims of the present invention, the present invention also intends to include these modifications and modifications.

Claims

1. An airbag-type borehole plugging structure, characterized by, The utility model relates to a grouting pipe and gasbag combined supporting device for blast hole, which comprises: a grouting pipe (2) and a gasbag (3), the gasbag (3) is coaxially sleeved on the outer wall surface of the grouting pipe (2); a supporting part (4) is arranged on the side of the gasbag (3) away from the slurry, one end of the supporting part (4) is rotatably installed on the outer wall surface of the grouting pipe (2), and the other end of the supporting part (4) extends towards the gasbag (3); a pressurizing part is arranged for increasing the pressure inside the gasbag (3), expanding the gasbag (3) and pushing the supporting part (4) to rotate, so that the end of the supporting part (4) away from the grouting pipe (2) abuts against the inner wall surface of the blast hole (1).

2. The balloon bore plug structure of claim 1, wherein, Further comprising: a plurality of fastening nails (5) are arranged on the supporting part (4) and located on the side of the supporting part (4) away from the gasbag (3).

3. The balloon bore plug structure of claim 2, wherein, A plurality of rows of fastening nails (5) are arranged on the supporting plate part in the depth direction of the blast hole (1), and the length of the fastening nails (5) decreases from the outside to the inside.

4. The balloon bore plug structure of claim 1, wherein, The supporting part (4) is an arc-shaped plate part.

5. The balloon bore plug structure of claim 1, wherein, Further comprising: a mounting seat (21) is arranged on the grouting pipe (2), and the supporting part (4) is hingedly arranged on the mounting seat (21).

6. The balloon bore plug structure of claim 1, wherein, Further comprising: a first magnetic part (61) and a second magnetic part (62) capable of magnetic adsorption, the first magnetic part (61) is arranged on the supporting part (4), and the second magnetic part (62) is arranged on the outer wall surface of the gasbag (3).

7. The balloon bore plug structure of claim 1, wherein, Further comprising: a pull rope (7) is connected to the side of the supporting part (4) close to the gasbag (3) at one end and extends towards the outside of the blast hole (1) at the other end.

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