Hole plugging equipment for tunnel drilling and blasting

Abstract

The utility model belongs to the technical field of hole plugging for drilling and blasting, and particularly relates to hole plugging equipment for tunnel drilling and blasting, which comprises a hydraulic cylinder, an elastic bag is fixedly connected to the outer wall of the hydraulic cylinder, a piston head is connected to a piston at the bottom of the hydraulic cylinder, and a vertical rod is fixedly connected to the upper side of the hydraulic cylinder. A fixing mechanism is arranged on the outer side of the vertical rod and comprises a threaded sleeve, and the threaded sleeve is connected to the outer wall of the vertical rod in a threaded mode. According to the hole plugging equipment for tunnel drilling and blasting, through the use of the fixing mechanism, after a worker places the hole plugging equipment into a blast hole, a thread sleeve can be rotated, the thread sleeve descends, then a limiting ring is driven to descend, a rotating ring drives a first hinge rod to move, and when a protection block makes contact with and extrudes the inner wall of the blast hole, the protection block compresses a reset spring; and the inserting block can be inserted into the inner wall of the blast hole, fixing of the device is achieved, operation is convenient, and the inner wall of the blast hole can be conveniently plugged through the elastic bag.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of hole plugging for drilling and blasting, in particular to a hole plugging equipment for tunnel drilling and blasting. BACKGROUND

[0002] Because of the strong adaptability to geological conditions and low excavation cost of the drilling and blasting method, the drilling and blasting method is currently mainly used for tunneling. Materials such as stemming are often used to plug the blast hole during the blasting process. Plugging the blast hole can enhance the blasting effect and is very important.

[0003] At present, the Chinese patent with the publication number CN215725500U in the prior art discloses a hole plugging device for tunnel drilling and blasting. The device forms a multi-layer seal from the inside to the outside of the blast hole through the first elastic bag, the second elastic bag, and the boss, thereby improving the sealing effect of the blast hole and the blasting effect during tunnel drilling and blasting.

[0004] However, the device has the following defects in actual use: The device is fixed by the mounting plate and the fixing bolt. The fixing bolt is troublesome to drill and damages the tunnel structure, which is inconvenient to operate. Moreover, the outer wall of the blast hole may be inclined. This fixing method may not be applicable. Therefore, a hole plugging equipment for tunnel drilling and blasting is proposed. SUMMARY

[0005] The main purpose of the utility model is to provide a hole plugging equipment for tunnel drilling and blasting, which can solve the problems raised in the background technology.

[0006] To achieve the above-mentioned purpose, the hole plugging equipment for tunnel drilling and blasting provided by the utility model comprises a hydraulic cylinder, an elastic bag fixedly connected to the outer wall of the hydraulic cylinder, a piston head connected to the bottom piston of the hydraulic cylinder, a vertical rod fixedly connected to the upper side of the hydraulic cylinder, and a fixing mechanism provided on the outer side of the vertical rod.

[0007] A threaded sleeve is threadedly connected to the outer wall of the vertical rod, a limiting ring is fixedly connected to the outer wall of the threaded sleeve, and a rotating ring is rotatably connected to the notch of the limiting ring.

[0008] A first articulated rod is hingedly connected to the outer wall of the rotating ring, and a protection assembly is provided on the first articulated rod.

[0009] A fixing sleeve is fixedly connected to the upper side of the hydraulic cylinder, the fixing sleeve is sleeved on the outer wall of the vertical rod, a second articulated rod is hingedly connected to the outer wall of the fixing sleeve, the threaded sleeve is rotated to make the threaded sleeve and the limiting ring descend, the rotating ring drives the first articulated rod to move, and the protection assembly moves towards the inner wall of the blast hole, thereby facilitating subsequent location and fixation of the device.

[0010] Preferably, the protection assembly comprises a fixed block, the articulated rod one and the articulated rod two are hinged with the fixed block, an insertion block is fixedly connected on the inner wall of the fixed block, and a protection block is slidingly connected on the inner wall of the fixed block.

[0011] Preferably, the fixed block and the protection block are elastically connected through a reset spring, a through opening is formed on the outer wall of the protection block and matched with the insertion block, when the protection block contacts and extrudes the inner wall of the blast hole, the protection block compresses the reset spring, the insertion block can be inserted into the inner wall of the blast hole, the stability of the device is increased, meanwhile, when the device is not used, the reset spring drives the protection block to reset, the insertion block can be shielded, and the staff is prevented from being scratched by the insertion block when carrying the device.

[0012] Preferably, a through hole is formed on the outer wall of the hydraulic cylinder and communicated with the elastic bag, and the hydraulic cylinder is filled with water.

[0013] Preferably, a piston ring is connected with the piston on the inner wall of the hydraulic cylinder, a screw rod is rotatably connected with the upper side of the piston ring, and the screw rod is threadedly connected with the vertical rod.

[0014] Preferably, a limiting piece is fixedly connected on the inner wall of the hydraulic cylinder and located below the piston ring.

[0015] The utility model provides a kind of hole plugging equipment for tunnel drilling blasting. It has the following beneficial effects:

[0016] (1), the hole plugging equipment for tunnel drilling blasting is used by the use of fixed mechanism, after staff places the device into blast hole, can be realized by rotating screw sleeve, so that screw sleeve drops, in turn drives limit ring to drop, so that rotating ring drives articulated rod one to move, in turn makes the inner wall of protection block contact and extrude blast hole, protection block compresses reset spring, insertion block can be inserted into the inner wall of blast hole, realize the fixation of the device, easy to operate, elastic bag is convenient for the inner wall of blast hole to be blocked.

[0017] (2), the hole plugging equipment for tunnel drilling blasting is used by the use of protection assembly, when the device is not used, reset spring drives protection block to reset, can shield insertion block, prevent staff from being scratched by insertion block when carrying the device. ACCURATE DRAWINGS

[0018] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can be obtained from the structure shown in these drawings without creating labor.

[0019] Figure 1 It is the whole three-dimensional structure schematic diagram of the utility model;

[0020] Figure 2 It is the fixed mechanism structure schematic diagram of the utility model;

[0021] Figure 3 It is the whole sectional structure schematic diagram of the utility model;

[0022] Figure 4 It is the utility model Figure 3 A structure schematic diagram.

[0023] Explanation of reference numerals:

[0024] 1, hydraulic cylinder;2, elastic bag;3, piston head;4, vertical rod;5, fixed mechanism;101, through hole;102, piston ring;103, screw;51, screw sleeve;52, limit ring;53, rotating ring;54, articulated rod one;55, protection assembly;56, articulated rod two;57, fixed sleeve;551, fixed block;552, protection block;553, plug block;554, through port;555, return spring.

[0025] The utility model discloses the realization, functional characteristics and advantages will be further described with reference to the embodiment. Specific implementation

[0026] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings of the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the utility model.

[0027] Please refer to Figures 1-4 The utility model provides a kind of hole plugging equipment for tunnel drilling blasting, including hydraulic cylinder 1, the outer wall of hydraulic cylinder 1 is fixedly connected with elastic bag 2, piston head 3 is connected in the bottom of hydraulic cylinder 1, the upper side of hydraulic cylinder 1 is fixedly connected with vertical rod 4, the outside of vertical rod 4 is provided with fixed mechanism 5.

[0028] In the embodiment of the utility model, in order to be able to make the device fixed in the inner wall of blasthole, specifically, fixed mechanism 5 includes screw sleeve 51, articulated rod one 54 and fixed sleeve 57, screw sleeve 51 is connected on the outer wall of vertical rod 4, fixedly connected with limit ring 52 on the outer wall of screw sleeve 51, the recess of limit ring 52 is rotatably connected with rotating ring 53, one end of articulated rod one 54 is hinged on the outer wall of rotating ring 53, articulated rod one 54 is provided with protection assembly 55, fixed sleeve 57 is fixedly connected on the upper side of hydraulic cylinder 1, fixed sleeve 57 is sleeved on the outer wall of vertical rod 4, articulated rod two 56 is hinged on the outer wall of fixed sleeve 57, protection assembly 55 includes fixed block 551, articulated rod one 54 and articulated rod two 56 are all hinged with fixed block 551, fixedly connected with plug block 553 on the inner wall of fixed block 551, fixed block 551 is slidably connected with protection block 552 on the inner wall, fixed block 551 and protection block 552 are elastically connected through reset spring 555, through opening 554 on the outer wall of protection block 552, opening 554 is matched with plug block 553, after placing the device into blasthole, can make screw sleeve 51 drop by rotating screw sleeve 51, in turn drive limit ring 52 to drop, make rotating ring 53 drive articulated rod one 54 to move, drive fixed block 551 to move to the inner wall direction of blasthole, in turn drive protection block 552 to abut with the inner wall of blasthole, in turn make protection block 552 contact and extrude with the inner wall of blasthole, when protection block 552 compresses reset spring 555, plug block 553 can be inserted into the inner wall of blasthole, realize the fixation of the device, convenient operation.

[0029] Further, when the device is not used, reset spring 555 drives protection block 552 to reset, can shield plug block 553 when the staff carries the device, prevent being scratched by plug block 553.

[0030] In the embodiment of the utility model, in order to be able to plug blasthole, specifically, the outer wall of hydraulic cylinder 1 is provided with through hole 101, and through hole 101 is communicated with elastic bag 2, the hydraulic cylinder 1 is filled with water, the inner wall of hydraulic cylinder 1 is connected with piston ring 102, the upper side of piston ring 102 is rotatably connected with screw rod 103, screw rod 103 is screwed with vertical rod 4, the inner wall of hydraulic cylinder 1 is fixedly connected with limit piece, and the limit piece is located below piston ring 102, by rotating screw rod 103, screw rod 103 drives piston ring 102 to drop, in turn extrudes water in hydraulic cylinder 1 to elastic bag 2, makes elastic bag 2 and the inner wall of blasthole close, realizes the plugging of blasthole.

[0031] In use, first, the device is placed into the blast hole, then the screw sleeve 51 is rotated to make the screw sleeve 51 descend, and then the limiting ring 52 is driven to descend, the rotating ring 53 is driven to move the hinged rod one 54, the fixed block 551 is driven to move towards the inner wall of the blast hole, the protection block 552 is driven to abut against the inner wall of the blast hole, and then when the protection block 552 is in contact with and pressed against the inner wall of the blast hole, the protection block 552 compresses the return spring 555, the plug block 553 can be inserted into the inner wall of the blast hole, the device is fixed, the screw rod 103 is rotated again, the screw rod 103 drives the piston ring 102 to descend, and then the water in the hydraulic cylinder 1 is pressed into the elastic bag 2, so that the elastic bag 2 is tightly attached to the inner wall of the blast hole to block the blast hole.

[0032] The above merely describes preferred embodiments of the present application, and does not limit the patent scope of the present application, and any equivalent structural transformation, direct / indirect application in other related technical fields, or the like, which is made under the inventive concept of the present application, by using the content of the present application specification and drawings, is included in the patent protection scope of the present application.

Claims

1. A stemming device for use in tunnel drilling blasting, comprising a hydraulic cylinder (1), characterized in that: The outer wall of the hydraulic cylinder (1) is fixedly connected with an elastic bag (2), the bottom of the hydraulic cylinder (1) is connected with a piston head (3), the upper side of the hydraulic cylinder (1) is fixedly connected with a vertical rod (4), the outer side of the vertical rod (4) is provided with a fixing mechanism (5), the fixing mechanism (5) comprises: A threaded sleeve (51) is threadedly connected to the outer wall of the vertical rod (4), a limiting ring (52) is fixedly connected to the outer wall of the threaded sleeve (51), and a rotating ring (53) is rotatably connected to the notch of the limiting ring (52); A first hinged rod (54) is hingedly connected to the outer wall of the rotating ring (53), and the first hinged rod (54) is provided with a protection assembly (55); A fixing sleeve (57) is fixedly connected to the upper side of the hydraulic cylinder (1), the fixing sleeve (57) is sleeved on the outer wall of the vertical rod (4), and a second hinged rod (56) is hingedly connected to the outer wall of the fixing sleeve (57).

2. A hole plugging device for use in tunnel drilling blasting according to claim 1, characterized in that: The protection assembly (55) comprises a fixed block (551), the first hinged rod (54) and the second hinged rod (56) are hingedly connected to the fixed block (551), a plug (553) is fixedly connected to the inner wall of the fixed block (551), and a protection block (552) is slidably connected to the inner wall of the fixed block (551).

3. A hole plugging device for use in tunnel drilling blasting according to claim 2, characterized in that: The fixed block (551) and the protection block (552) are elastically connected through a reset spring (555), a through hole (554) is formed in the outer wall of the protection block (552), and the through hole (554) is matched with the plug (553).

4. A hole plugging device for use in tunnel drilling blasting according to claim 1, characterized in that: A through hole (101) is formed in the outer wall of the hydraulic cylinder (1), the through hole (101) is communicated with the elastic bag (2), and the hydraulic cylinder (1) is filled with water.

5. A hole plugging device for use in tunnel drilling blasting according to claim 4, characterized in that: A piston ring (102) is connected to the inner wall of the hydraulic cylinder (1), a screw rod (103) is rotatably connected to the upper side of the piston ring (102), and the screw rod (103) is threadedly connected with the vertical rod (4).

6. A hole plugging device for use in tunnel drilling blasting according to claim 5, characterized in that: A limiting piece is fixedly connected to the inner wall of the hydraulic cylinder (1), and the limiting piece is located below the piston ring (102).

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