Blast hole sealing assembly

By combining the arc-shaped plate and airbag design with the worm gear transmission system and clamping components, the problem of fixing and sealing the blast hole sealing component when the hole diameter changes is solved, achieving adaptive sealing for holes of different diameters and improving the blasting effect and safety.

CN223783493UActive Publication Date: 2026-01-09CHINA RAILWAY NO 25 ENG GRP NO 4 ENG CO LTD +2
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Patent Information

Application Number
CN202520172526.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-25
Publication Date
2026-01-09
Estimated Expiration
2035-01-25

AI Technical Summary

Technical Problem

Existing blast hole sealing components are difficult to effectively fix and seal when the hole diameter changes, which can lead to loosening or displacement of the device, affecting the blasting effect and safety.

Method used

It adopts a combination design of arc-shaped plate and airbag, and uses a worm gear transmission system to precisely control the arc-shaped plate to fit the hole wall, and uses airbag sealing to combine with clamping components to adapt to burst holes of different diameters.

Benefits of technology

It enables flexible and adaptable fixing and sealing of blasting holes of different diameters, improves the versatility and safety of the device, and ensures the effective utilization of blasting energy.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a blasthole sealing assembly, which relates to the technical field of blasting, and comprises a base, a driving box, an arc-shaped sheet and a moving assembly for moving the arc-shaped sheet, the driving box is arranged above the base, the arc-shaped sheet is arranged between the base and the driving box, the moving assembly comprises a rotating column, and the rotating column is arranged on the base. And the rotating column is rotationally connected between the base and the driving box, the outer wall of the rotating column is rotationally connected with a chassis, a rotating disc is arranged above the chassis, and the rotating disc is fixedly connected to the outer wall of the rotating column. By moving the sliding plate and the fixed plate, the device can be flexibly adjusted to adapt to blast holes with different diameters, the problem that effective blocking cannot be achieved due to hole diameter changes is solved, the universality of the device is improved, rotation of the rotating column is accurately controlled through the matching effect of the worm and the worm gear, and the service life of the device is prolonged. And the rotating disc drives the arc-shaped piece to be precisely attached to the blast hole wall, and the sealing effect of equipment is improved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to the field of blasting technology, concretely is a kind of blasting hole closing assembly. BACKGROUND

[0002] Blasting hole is in the scene that mine, engineering construction and other need to carry out blasting operation, through drilling equipment in rock or soil layer and excavate the hole of specific shape and depth.Its main use is to contain explosive or blasting device, after ignition or detonation, produce control blasting, for material crushing, geological stripping or building demolition purposes, blasting hole closing assembly is used to fill and seal a kind of special device for blasting hole, its main function is to prevent the gas of explosive in blasting hole from leaking out, to improve the utilization efficiency of blasting energy, and ensure the safety and effect of blasting.This kind of assembly can adapt to blasting hole of different diameters and shapes, through mechanical fixation, sealing air bag or other structural design, realize the stable support and sealing of blasting hole.

[0003] For example, the patent with the patent announcement number CN221147382 U records a kind of blasting hole closing assembly, wherein the scheme recorded: by setting fixed handle, fixed rod, gear, support column and fixed nail etc. structure on positioning cylinder, can make support column drive fixed nail to move and extend opening, and by positioning cylinder side wall extends multiple fixed nails and is inserted in the inner wall of blasting hole, to further support firm positioning cylinder in blasting hole, to greatly improve the fixing effect of device, so that positioning cylinder is not easy to be washed out, safety is excellent.

[0004] The above-mentioned technology is to put the positioning cylinder into the inside of blasting hole, and then fixed by inserting the fixed nail into the hole wall, but when the diameter of blasting hole changes greatly, the fixed nail cannot effectively resist the hole wall, which may cause the positioning cylinder to loosen or deviate, and it is difficult to fix according to the diameter of blasting hole of different sizes, and the air bag directly contacts the hole wall in the above-mentioned technology, although it can play a sealing role, but this design also has certain hidden danger. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a kind of blasting hole closing assembly to solve the problems in the background art.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical scheme:

[0007] A kind of blasting hole closing assembly, comprising:

[0008] Base;

[0009] Drive box, the drive box is set in the upper of base;

[0010] Arc piece, the arc piece is set between base and drive box;

[0011] The moving assembly for moving the arc-shaped sheet comprises a rotating column rotatably connected between the base and the driving box, a bottom plate is installed at the bottom of the driving box, the outer wall of the rotating column is rotatably connected to the bottom plate, a rotating disc is arranged below the bottom plate and fixedly connected to the outer wall of the rotating column, sliding rails are installed around the bottom of the bottom plate, a connecting plate is slidably connected inside the sliding rails, one end of the connecting plate is connected to the arc-shaped sheet, a guide column is installed at one side of the bottom of the connecting plate, an arc-shaped groove is arranged inside the rotating disc, the guide column is slidably connected inside the arc-shaped groove, and an air bag is arranged below the rotating disc.

[0012] Based on the above technical scheme, the utility model further provides the following optional technical schemes.

[0013] In an optional scheme, the driving assembly comprises a worm gear, the worm gear is installed at the end of the rotating column, the worm gears are meshed with each other, and the worm is rotatably connected to the driving box.

[0014] In an optional scheme, the inside of the driving box is provided with a clamping assembly for clamping the blasting pipe.

[0015] In an optional scheme, the clamping assembly comprises a fixed block, the fixed block is installed on the outer wall of the rotating column, sliding plates are slidably connected inside the fixed block at both ends, movement grooves are arranged at the bottom of the sides away from each other of the two sliding plates, threaded rods are rotatably connected inside the movement grooves, fixed plates are installed at one end of the movement grooves close to the fixed block, and clamping plates are threadedly connected to the outer wall of the threaded rods.

[0016] In an optional scheme, one side of the air bag is provided with an air pipe, and an exhaust valve is arranged on the air pipe.

[0017] In an optional scheme, one end of the worm is provided with a handle.

[0018] In an optional scheme, the groove inside the sliding rail is in the shape of a concave character.

[0019] In an optional scheme, the outer side of the arc-shaped sheet is provided with a friction sheet.

[0020] Compared with the prior art, the utility model has the beneficial effects as follows:

[0021] The utility model discloses a mobile sliding plate and fixed plate can be adjusted equipment to adapt to the blast hole of different diameter, solved the problem of being unable to effectively block because of the aperture change, improved the versatility of equipment, utilize the cooperation of worm and worm wheel, accurate control rotates the rotation of column, makes the rotating disc drive arc piece accurate adhesion blast hole wall, and cooperates the effective sealing of blast hole to air bag. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is the structure schematic drawing of the utility model.

[0023] Figure 2 It is the structure schematic drawing of the utility model's partial cut.

[0024] Figure 3 It is the structure schematic drawing of the utility model's mobile subassembly.

[0025] Figure 4 It is the structure schematic drawing of the utility model's clamping subassembly.

[0026] Among them: 100, base, 200, drive box, 300, arc piece, 401, rotating column, 402, base plate, 403, slide rail, 404, connecting plate, 405, guide column, 406, rotating disc, 407, arc slot, 408, air bag, 501, worm wheel, 502, worm, 601, fixed block, 602, sliding plate, 603, moving groove, 604, threaded rod, 605, fixed plate, 606, clamping plate, 701, air pipe, 702, exhaust valve. DETAILED DESCRIPTION

[0027] In order to make the utility model's purpose, technical scheme and advantage more clear and obvious, the following combines the drawing and example, and further detailedly explains the utility model.

[0028] In one embodiment, as Figures 1-4As shown in the figure, a blasting hole sealing assembly comprises a base 100, a driving box 200, an arc-shaped sheet 300 and a moving assembly for moving the arc-shaped sheet 300, the driving box 200 is arranged above the base 100, the arc-shaped sheet 300 is arranged between the base 100 and the driving box 200, the moving assembly comprises a rotating column 401, the rotating column 401 is rotatably connected between the base 100 and the driving box 200, a bottom of the driving box 200 is provided with a bottom disc 402, an outer wall of the rotating column 401 is rotatably connected to the bottom disc 402, a bottom of the bottom disc 402 is provided with a rotating disc 406, the rotating disc 406 is fixedly connected to the outer wall of the rotating column 401, the bottom disc 402 is provided with a sliding rail 403 around the bottom thereof, the sliding rail 403 is slidably connected with a connecting plate 404, one end of the connecting plate 404 is connected to the arc-shaped sheet 300, one side of the bottom of the connecting plate 404 is provided with a guide column 405, the rotating disc 406 is provided with an arc-shaped groove 407 in the inside thereof, the guide column 405 is slidably connected in the inside of the arc-shaped groove 407, a bottom of the rotating disc 406 is provided with an air bag 408, the driving box 200 is provided with a driving assembly for driving the rotating column 401 to rotate; by rotating the rotating column 401, the rotating disc 406 is driven to rotate, so that the guide column 405 is moved in the inside of the arc-shaped groove 407, so that the connecting plate 404 is slid in the inside of the sliding rail 403, so that the arc-shaped sheet 300 can tightly adhere to the wall of the blasting hole, and then by inflating the air bag 408, the air bag 408 is expanded and adheres to the arc-shaped sheet 300, so that the air bag 408 can block the blasting hole.

[0029] In one embodiment, as shown in Figure 2 and Figure 4 The driving assembly comprises a worm gear 501, the worm gear 501 is arranged at the end of the rotating column 401, the worm gear 501 is meshed with a worm shaft 502, the worm shaft 502 is rotatably connected to the driving box 300; by rotating the worm shaft 502, the worm gear 501 is driven to rotate, so that the rotating column 401 is driven to rotate.

[0030] In one embodiment, as shown in Figure 2 and Figure 4As shown, the clamping assembly comprises a fixed block 601 mounted on the outer wall of the rotating column 401, the inner part of both ends of the fixed block 601 is slidably connected with a sliding plate 602, the bottom of the side away from each other of the two sliding plates 602 is provided with a moving groove 603, the inner part of the moving groove 603 is rotatably connected with a threaded rod 604, the end of the moving groove 603 close to the fixed block 601 is provided with a fixed plate 605, the outer wall of the threaded rod 604 is threadedly connected with a clamping plate 606; by moving the sliding plate 602, the fixed plate 605 is synchronously moved, so that the fixed plate 605 is tightly attached to the inner wall of the blasting hole, so as to adapt to blasting holes of different diameters, and then the threaded rod 604 is rotated, the clamping plate 606 is driven to be close to the fixed plate 605, so that the clamping plate 606 clamps the pipe wall together with the fixed plate 605.

[0031] In one embodiment, as shown in Figure 1 and Figure 2 As shown, one side of the air bag 408 is provided with an air pipe 701, and the air pipe 701 is provided with an exhaust valve 702; by setting the air pipe 701, the inside of the air bag 408 is inflated, and the gas in the air bag 408 is discharged through the exhaust valve 702.

[0032] In one embodiment, as shown in Figure 2 and Figure 4 As shown, one end of the worm 502 is provided with a handle; the handle is arranged to rotate the worm 502.

[0033] In one embodiment, as shown in Figure 3 As shown, the groove in the inner part of the sliding rail 403 is concave; the connecting plate 404 and the guide column 405 are facilitated to slide in the inner part of the sliding rail 403.

[0034] In one embodiment, as shown in Figure 1 and Figure 2 As shown, the outer side of the arc-shaped sheet 300 is provided with a friction sheet; the arc-shaped sheet 300 can better fit the inner wall of the blasting pipe.

[0035] The above embodiment discloses a blasting hole sealing assembly, wherein the inside of the blasting hole is installed with a blasting pipe, by moving the sliding plate 602, the fixed plate 605 is synchronously moved, so that the fixed plate 605 is close to the inner wall of the blasting hole, so as to adapt to blasting pipes with different diameters, then the threaded rod 604 is rotated, the clamping plate 606 is close to the fixed plate 605, so that the clamping plate 606 clamps the pipe wall with the fixed plate 605, after clamping, the worm 502 is rotated, the worm wheel 502 is rotated, so as to rotate the rotating column 401, the rotating disc 406 is rotated by the rotating column 401, so as to move the guide column 405 in the arc-shaped groove 407, so that the connecting plate 404 slides in the sliding rail 403, so that the arc-shaped sheet 300 can be close to the wall of the blasting pipe, then the air bag 408 is inflated, so that the air bag 408 is expanded and matched with the arc-shaped sheet 300, so that the air bag 408 can block the blasting pipe.

[0036] The above merely provides a specific implementation of the present application, but the protection scope of the present application is not limited to this, any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the present application, which should be covered in the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A blasting hole sealing assembly, comprising: a base (100); a drive box (200) arranged above the base (100); an arc-shaped sheet (300) arranged between the base (100) and the drive box (200); characterized in that it further comprises a moving assembly for moving the arc-shaped sheet (300), the moving assembly comprising a rotating column (401) rotatably connected between the base (100) and the drive box (200), a bottom plate (402) mounted at the bottom of the drive box (200), an outer wall of the rotating column (401) rotatably connected to the bottom plate (402), a rotating disc (406) arranged below the bottom plate (402) and fixedly connected to the outer wall of the rotating column (401), a slide rail (403) mounted around the bottom of the bottom plate (402), a connecting plate (404) slidably connected inside the slide rail (403), the connecting plate (404) connected to one end of the arc-shaped sheet (300), a guide column (405) mounted at one side of the bottom of the connecting plate (404), an arc-shaped groove (407) arranged inside the rotating disc (406), the guide column (405) slidably connected inside the arc-shaped groove (407), an air bag (408) arranged below the rotating disc (406), and a drive assembly arranged inside the drive box (200) for driving the rotating column (401) to rotate.

2. A blast hole closure assembly according to claim 1, wherein, The drive assembly comprises a worm gear (501) mounted at the end of the rotating column (401), and a worm shaft (502) rotatably connected to the drive box (200) and meshing with the worm gear (501).

3. A blast hole closure assembly according to claim 1, wherein, The drive box (200) is provided with a clamping assembly for clamping the blasting tube.

4. A blast hole closure assembly according to claim 3, wherein, The clamping assembly comprises a fixed block (601) mounted on the outer wall of the rotating column (401), and a sliding plate (602) slidably connected inside the fixed block (601) at both ends, a moving groove (603) opened at the bottom of the side away from each other of the two sliding plates (602), a threaded rod (604) rotatably connected inside the moving groove (603), a fixed plate (605) mounted at one end of the moving groove (603) close to the fixed block (601), and a clamping plate (606) threadedly connected to the outer wall of the threaded rod (604).

5. A blast hole closure assembly according to claim 1, wherein, One side of the air bag (408) is provided with an air pipe (701) provided with an exhaust valve (702).

6. A blast hole closure assembly according to claim 2, wherein, One end of the worm shaft (502) is provided with a handle.

7. A blast hole closure assembly according to claim 1 wherein, The groove inside the slide rail (403) is in the shape of a concave letter.

8. A blast hole closure assembly according to claim 1, wherein, The outer side of the arc-shaped sheet (300) is provided with a friction sheet.

Citation Information

Patent Citations

  • Blast hole sealing assembly

    CN221147382U