Underground blasting shot hole plugging device

Abstract

The utility model discloses an underground blasting shot hole plugging device which comprises a base, a ring body, a sliding rod and a power assembly, the base is connected with a supporting plate through a lifting assembly, the ring body is connected with the supporting plate in a rotating mode, a plurality of spacer bushes are distributed on the ring body in the circumferential direction, the spacer bushes are respectively used for placing blockages, and a rubber sleeve and an air pump are arranged on the sliding rod. A movable cavity is formed by the rubber sleeve and the outer wall of the sliding rod and connected with an air outlet of the air pump through a pipe body, and an electromagnetic valve is arranged on the rubber sleeve. The power assembly is used for driving the sliding rod to push the blockages into the shot hole. The power assembly pushes the blockages to move forwards towards the interior of the shot hole, the blockages deform due to resistance of the inner wall of the shot hole when moving forwards, the situation that gaps exist between the blockages and the inner wall of the shot hole is avoided, the rear ends of the blockages are blocked in the deformation process, the shot hole is fully blocked, and the blocking quality is high.

Description

Technical Field

[0001] The utility model relates to the technical field of blasting, in particular to a downhole blasting hole plugging device. Background Technique

[0002] During the coal mining process in the coal mine field, explosives are used to blast the ore body. After drilling the ore body to a certain depth, the explosives are filled into the blast holes. In order to improve the blasting quality and efficiency, the blast holes are plugged so that the blasting force is concentrated around the gunpowder.

[0003] When the traditional method is used to plug the blast holes with plugs, after manually inserting them, they are tamped. The operation is cumbersome, and the plugging quality is uneven. It is easy to have a gap between the plug and the inner wall of the blast hole, resulting in difficulty in achieving the expected effect. Therefore, the utility model proposes a downhole blasting hole plugging device that can solve the above problems. Content of the Utility Model

[0004] The purpose of the utility model is to provide a downhole blasting hole plugging device to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A downhole blasting hole plugging device, comprising:

[0006] A base, connected with a tray through a lifting assembly;

[0007] A ring body, rotatably connected with the tray, and a plurality of spacer sleeves are circumferentially distributed on the ring body, and the plurality of spacer sleeves are respectively used for placing plugs;

[0008] A sliding rod, on which a rubber sleeve and an air pump are arranged, an activity cavity is formed between the rubber sleeve and the outer wall of the sliding rod, the activity cavity is connected with the air outlet of the air pump through a pipe body, and an electromagnetic valve is arranged on the rubber sleeve;

[0009] A power assembly, used to drive the sliding rod to push the plug into the blast hole.

[0010] As a preferred technical solution, the lifting assembly includes at least one electric cylinder body installed on the base, and the movable rod of the electric cylinder body is connected with the tray.

[0011] As a preferred technical solution, a straight cylinder is arranged on the base, the straight cylinder is movably connected with a guide rod, and the guide rod extends upward and is connected with the tray.

[0012] As a preferred technical solution, a first motor body is installed on the tray, a gear ring is arranged on the outer side of the ring body, the output end of the first motor body is connected with a first gear, and the first gear meshes with the gear ring.

[0013] As a preferred technical solution, a plurality of wear-resistant layers are provided on the outer side of the rubber sleeve.

[0014] As a preferred technical solution, the power assembly includes a second motor body installed on the support plate and a rack provided on the sliding rod. The output end of the second motor body is connected with a second gear, and the second gear meshes with the rack.

[0015] As a preferred technical solution, a guiding cylinder is provided on the support plate. The guiding cylinder extends horizontally and can be aligned with a group of the spacer sleeves to form a connection.

[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0017] The power assembly pushes the plug towards the inside of the blast hole. When the plug advances, it deforms due to the resistance of the inner wall of the blast hole, avoiding the situation of gaps between the plug and the inner wall of the blast hole, so that the rear end of the plug is blocked during the deformation process to fully seal the blast hole, and the sealing quality is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0019] Figure 2 is a schematic diagram of the lifting assembly structure of the present utility model;

[0020] Figure 3 is a schematic diagram of the power assembly and the ring body structure of the present utility model;

[0021] In the figure: 10, base; 20, lifting assembly; 21, electric cylinder body; 22, straight cylinder; 23, guide rod; 30, support plate; 31, first motor body; 311, first gear; 32, guiding cylinder; 40, ring body; 401, gear ring; 41, spacer sleeve; 50, sliding rod; 51, rubber sleeve; 52, air pump; 60, power assembly; 61, second motor body; 62, rack; 63, second gear. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present utility model.

[0023] Please refer to Figures 1 - 3, a downhole blasting hole plugging device is provided. When the traditional plugging method uses a plug to block the hole, after manually inserting it, it is then tamped. The operation is cumbersome, and the plugging quality varies. It is easy to have a gap between the plug and the inner wall of the hole, resulting in difficulty in achieving the expected effect. The specific embodiments are as follows:

[0024] Embodiment 1

[0025] The base 10 is connected to a support plate 30 through a lifting assembly 20. The lifting assembly 20 includes an electric cylinder body 21 installed on the base 10. The movable rod of the electric cylinder body 21 is connected to the support plate 30. The height can be adjusted by driving the support plate 30 to lift through the electric cylinder body 21.

[0026] The ring body 40 is rotatably connected to the support plate 30. A plurality of spacer sleeves 41 are circumferentially distributed on the ring body 40. The plurality of spacer sleeves 41 are respectively used to place plugs. That is, plugs can be placed in each spacer sleeve 41 in advance to make preparations. When plugging the hole, the work efficiency is effectively improved.

[0027] The power assembly 60 drives the sliding rod 50 to push the plug into the hole. A rubber sleeve 51 and an air pump 52 are provided on the sliding rod 50. The rubber sleeve 51 and the outer wall of the sliding rod 50 form a movable cavity. The movable cavity is connected to the air outlet of the air pump 52 through a pipe body. A solenoid valve is provided on the rubber sleeve 51, which is not shown in the figure. The solenoid valve is located at the rear side of the rubber sleeve 51;

[0028] The pipe body is a flexible pipe. After the plug is initially pushed into the hole, the air pump 52 sucks air and transports it to the movable cavity through the pipe body, causing the movable cavity to expand and push the rubber sleeve 51 outwards to contact the inner wall of the hole. At this time, the power assembly 60 continues to push the plug forward into the hole. When the plug advances, it deforms due to the resistance of the inner wall of the hole, avoiding the situation of a gap between the plug and the inner wall of the hole. When the plug deforms, the rear end is blocked, fully plugging the hole. Thus, the plugging quality is high.

[0029] Preferably, the base 10 is placed on a mobile device such as a trolley to facilitate movement and position adjustment, and multiple holes can be plugged.

[0030] Embodiment 2

[0031] A plurality of wear-resistant layers are provided on the outer side of the rubber sleeve 51. The wear-resistant protrusions are preferably made of rubber material to extend the service life of the rubber sleeve 51.

[0032] A guide tube 32 is provided on the pallet 30. The guide tube 32 extends horizontally and can be aligned with a set of spacer sleeves 41 to form a connection. The guide tube 32 guides the blockage into the blast hole. When plugging the blast hole, the guide tube 32 is aligned with the blast hole. The inner diameter of the guide tube 32 is larger than the outer diameter of the slide rod 50. The inner walls of the spacer sleeve 41 and the guide tube 32 are polished to be smooth. After plugging the blast hole, after exhausting the air through the solenoid valve, the slide rod 50 is driven to reset by the power assembly 60, so that the slide rod 50 can smoothly pass through the guide tube 32.

[0033] A straight tube 22 is provided on the base 10. The straight tube 22 is movably connected with a guide rod 23. The guide rod 23 extends upward to be connected with the pallet 30, guiding the vertical lifting of the pallet 30.

[0034] Embodiment III

[0035] A first motor body 31 is installed on the pallet 30. A gear ring 401 is provided on the outer side of the ring body 40. The output end of the first motor body 31 is connected with a first gear 311. The first gear 311 meshes with the gear ring 401. The first motor body 31 can drive the ring body 40 to rotate through the meshing of the first gear 311 and the gear ring 401, so that different spacer sleeves 41 move to the front end of the slide rod 50, eliminating the need for manual rotation of the ring body 40. And after the rotation of the ring body 40 is completed, it plays a limiting role on the ring body 40 when the first gear 311 is in a stopped state, preventing the ring body 40 from driving the spacer sleeve 41 to deviate from the position.

[0036] The power assembly 60 includes a second motor body 61 installed on the pallet 30 and a rack 62 provided on the slide rod 50. The output end of the second motor body 61 is connected with a second gear 63. The second gear 63 meshes with the rack 62. The second motor body 61 can drive the rack 62 to move back and forth through the meshing of the second gear 63 and the rack 62.

[0037] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A device for plugging underground blasting holes, characterized in that: include: A base (10) is connected to a support plate (30) via a lifting assembly (20); A ring body (40) is rotatably connected to the support plate (30), and a plurality of spacers (41) are circumferentially distributed on the ring body (40), and the plurality of spacers (41) are respectively used to place blockages; A sliding rod (50) is provided with a rubber sleeve (51) and an air pump (52), wherein the rubber sleeve (51) and the outer wall of the sliding rod (50) form an active cavity, wherein the active cavity is connected to an air outlet of the air pump (52) through a tube body, and an electromagnetic valve is provided on the rubber sleeve (51); The power assembly (60) is used to drive the slide rod (50) to push the plugging object into the blast hole.

2. The underground blasting hole plugging device according to claim 1, characterized in that: The lifting assembly (20) comprises at least one set of electric cylinder bodies (21) mounted on a base (10), and a movable rod of the electric cylinder body (21) is connected to the support plate (30).

3. The underground blasting hole plugging device according to claim 2, characterized in that: A straight cylinder (22) is provided on the base (10), and the straight cylinder (22) is movably connected to a guide rod (23), and the guide rod (23) extends upward to be connected to the support plate (30).

4. The underground blasting hole plugging device according to claim 1, characterized in that: A first motor body (31) is mounted on the support plate (30), a gear ring (401) is arranged outside the ring body (40), an output end of the first motor body (31) is connected to a first gear (311), and the first gear (311) is meshed with the gear ring (401).

5. The underground blasting hole plugging device according to claim 1, characterized in that: The outer side of the rubber sleeve (51) is provided with a plurality of wear-resistant layers.

6. The underground blasting hole plugging device according to claim 1, characterized in that: The power assembly (60) comprises a second motor body (61) mounted on the support plate (30) and a rack (62) arranged on the slide bar (50); the output end of the second motor body (61) is connected to a second gear (63), and the second gear (63) is meshed with the rack (62).

7. The underground blasting hole plugging device according to claim 1, characterized in that: The support plate (30) is provided with a guide cylinder (32), which extends transversely and can be aligned with a group of the spacers (41) to form a communication.

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