CN215725500U

CN215725500U - Hole plugging device for tunnel drilling blasting

Info

Publication number: CN215725500U
Application number: CN202122506048.8U
Authority: CN
Inventors: 范强; 李卓军; 高金乐; 彭刚
Original assignee: China Construction Seventh Engineering Division Corp Ltd
Current assignee: China Construction Seventh Engineering Division Corp Ltd
Priority date: 2021-10-18
Filing date: 2021-10-18
Publication date: 2022-02-01
Anticipated expiration: 2031-10-18

Abstract

The utility model belongs to the technical field of the tunnel blasting device, especially, relate to a hole blocking device is used in tunnel drilling blasting. The mounting plate is characterized by comprising a mounting plate, evenly be equipped with all around the mounting plate with big gun hole upper portion fixed connection's fixing bolt, the lower surface middle part of mounting plate is equipped with the liquid storage cylinder, the upper end and the mounting plate fixed connection of liquid storage cylinder, the lower extreme of liquid storage cylinder is equipped with fixed connection's first elasticity bag with it, the middle part of mounting plate is equipped with the nut, be equipped with the screw rod that matches with it in the nut, the one end that the screw rod is located the liquid storage cylinder inside is equipped with the piston, be equipped with the filling liquid between piston and the first elasticity bag. This technical scheme is used for solving when drilling the blasting, and traditional stifled hole mode is not good to the jam effect in big gun hole, causes the gas that the blasting produced to spill over too early, leads to the not good problem of blasting effect.

Description

Hole plugging device for tunnel drilling blasting

Technical Field

The utility model belongs to the technical field of the tunnel blasting device, especially, relate to a hole blocking device is used in tunnel drilling blasting.

Background

The drilling and blasting method has strong adaptability to geological conditions and low excavation cost, so the current tunnel mainly adopts the drilling and blasting method for tunneling. In the blasting process, materials such as stemming and the like are often used for blocking blast holes, so that the blasting effect can be enhanced by blocking the blast holes, and the effect is very important. The current big gun hole blocks up still through manual operation, takes a lot of work and time to block up the quality very poor again promptly, and the problem of punching a hole is serious, makes explosive gas escape too early, can not the full play explosive rock-breaking effect, finally leads to the tunnel blasting to reach the problem of anticipated effect, and explosive utilization ratio greatly reduced.

SUMMERY OF THE UTILITY MODEL

Aiming at the technical defects, the utility model aims to provide a hole plugging device for tunnel drilling blasting, which is used for solving the problem that the traditional hole plugging mode has poor plugging effect on blast holes during drilling blasting, so that gas generated by blasting overflows too early, and the blasting effect is poor.

In order to achieve the purpose, the technical scheme adopted by the utility model is as follows:

the utility model provides a hole blocking device is used in tunnel drilling blasting acts on the big gun hole, includes the mounting panel, evenly be equipped with all around of mounting panel with big gun hole upper portion fixed connection's fixing bolt, the lower surface middle part of mounting panel is equipped with the liquid reserve tank, the upper end and the mounting panel fixed connection of liquid reserve tank, the lower extreme of liquid reserve tank is equipped with fixed connection's first elasticity bag with it, the middle part of mounting panel is equipped with the nut, be equipped with the screw rod that matches with it in the nut, the one end that the screw rod is located the liquid reserve tank inside is equipped with the piston, be equipped with the filling liquid between piston and the first elasticity bag.

Further, the first elastic bag is a rubber bag, which has the advantages of good elasticity like a capsule, and firmness and durability.

Further limit, the liquid storage cylinder is a cylinder, and the liquid storage cylinder has the advantages that the installation and the arrangement of other parts on the cylinder are more convenient, and the manufacturing process is simpler.

The liquid storage cylinder is a conical cylinder, one end of the conical cylinder with the smaller diameter is fixedly connected with the first elastic bag, and the liquid storage cylinder has the advantages that when the conical cylinder is placed in a blast hole, the larger part of the conical cylinder can be in close contact with the blast hole to seal the blast hole, and meanwhile, the conical cylinder can adapt to the blast holes with different diameters due to the change of the diameter of the conical cylinder.

Further inject, be equipped with the first through-hole of a plurality of equipartitions on the piston, its beneficial part lies in, when first elastic bag receives the impact that explosive explosion produced, the filling liquid can slowly flow to liquid storage cylinder upper portion from first through-hole, can play the absorbing effect of pressure release, guarantees the installation stability of this device in the big gun hole to and avoid first elastic bag to receive great impact force and break.

Further inject, the outer wall of liquid storage cylinder is from last to being equipped with 2 sealing mechanism of group at least down, sealing mechanism includes that the circumference sets up the second through-hole on the liquid storage cylinder outer wall to and set up in the second through-hole outside and with the second through-hole cladding second elastic bag, its beneficial part lies in, when the screw rod moves down, fill liquid gets into inside the second elastic bag, makes the second elastic bag inflation and big gun hole internal surface in close contact with, forms sealedly, further guarantees the sealed effect to the big gun hole during the blasting.

Further, the second elastic bag is annular, and the second elastic bag is also a rubber bag.

Further inject, be equipped with annular boss on the lower surface of mounting panel, annular boss is located fixing bolt's inboard, and the boss can be absorbed into the ground of big gun hole upper end, can seal big gun hole upper end.

Further limit, the upper end of the screw rod is provided with a round handle, and the screw rod has the advantage that the screw rod is convenient to screw.

Further, the fixing bolt is an expansion bolt, and the fixing bolt has the advantage that the fixing bolt is connected with the bottom surface more stably.

The technical effect achieved by the technical scheme is as follows:

(1) this device simple structure, the practicality is strong, and ability used repeatedly, cost when reducing tunnel blasting. (2) The liquid storage cylinder is a conical cylinder, is suitable for blast holes with different diameters, and can further enhance the sealing effect on the blast holes. (3) This device forms the multilayer through first elastic bag, second elastic bag and boss to the big gun hole from inside to outside sealed, has promoted the sealed effect to the big gun hole, has promoted the blasting effect when tunnel drilling blasting promptly.

Drawings

Fig. 1 is a perspective view of the device.

Fig. 2 is a schematic top view of the apparatus.

Fig. 3 is a schematic front view of the present apparatus.

Fig. 4 is a schematic cross-sectional view of a front view of the present device.

FIG. 5 is a schematic view of the installation and operation of the device in a borehole.

Reference numerals

The device comprises a blast hole 1, an installation plate 2, a fixing bolt 3, a handle 4, a screw 5, a nut 6, a second elastic bag 7, a first elastic bag 8, a liquid storage cylinder 9, a piston 10, a second through hole 11, filling liquid 12 and a boss 13.

Detailed Description

The following is further detailed by way of specific embodiments:

as shown in fig. 1 to 5, a hole blocking device for tunnel drilling blasting acts on a blast hole 1, including a mounting plate 2, the periphery of the mounting plate 2 is uniformly provided with fixing bolts 3 fixedly connected with the upper portion of the blast hole 1, the middle portion of the lower surface of the mounting plate 2 is provided with a liquid storage cylinder 9, the upper end of the liquid storage cylinder 9 is fixedly connected with the mounting plate 2, the lower end of the liquid storage cylinder 9 is provided with a first elastic bag 8 fixedly connected with the liquid storage cylinder 9, the middle portion of the mounting plate 2 is provided with a nut 6, a screw rod 5 matched with the nut 6 is arranged in the nut 6, one end of the screw rod 5 located inside the liquid storage cylinder 9 is provided with a piston 10, a filling liquid 12 is arranged between the piston 10 and the first elastic bag 8, and the filling liquid 12 is oil in the present embodiment.

The first elastic bag 8 is a rubber bag, has good elasticity like a capsule, and is firm and durable. The liquid storage cylinder 9 is more convenient when other parts are installed and arranged on the cylindrical cylinder, and the manufacturing process is simpler. When first elastic bag 8 receives the impact that the explosive explosion produced, the first through-hole that is equipped with a plurality of equipartitions on piston 10 can be followed first through-hole slow flow to liquid storage cylinder 9 upper portion to filling liquid 12, can play the absorbing effect of pressure release, guarantees the installation stability of this device in big gun hole 1 to and avoid first elastic bag 8 to receive great impact force and break.

The outer wall of liquid storage barrel 9 is from last to being equipped with 2 sealing mechanism of group at least down, and sealing mechanism includes that the circumference sets up second through-hole 11 on the outer wall of liquid storage barrel 9 to and set up in the second through-hole 11 outside and when moving the 7 screw rods 5 of second elastic bag of 11 cladding of second through-hole downwards, fill liquid 12 and get into inside the 7 second elastic bags, make the inflation of second

elastic bag

7 and 1 internal surface in close contact with of big gun hole, form sealedly, further guarantee the sealed effect to big gun hole 1 when blasting. The second elastic bag 7 is annular and the second elastic bag 7 is also a rubber bag, although the displacement of the piston 10, which is not in this embodiment, should not be located below the uppermost second through hole 11.

The lower surface of the mounting plate 2 is provided with an annular boss 13, the annular boss 13 is positioned on the inner side of the fixing bolt, and the boss 13 can sink into the ground at the upper end of the blast hole 1 and can seal the upper end of the blast hole 1. The upper end of the screw rod 5 is provided with a round handle 4 which is convenient for screwing the screw rod 5. The fixing bolt 3 is used for connecting the expansion bolt and the bottom surface more firmly.

The working principle of the device is as follows: fix the fixing bolt 3 of this device on the upper end ground of big gun hole 1, simultaneously with the boss 13 absorbed in the ground, through twisting screw rod 5, make screw rod 5 drive piston 10 move down, extrude filling liquid 12 to first elastic bag 8 and second elastic bag 7 in, make the two take place deformation, with the inner wall in close contact with of big gun hole 1, form multilayer sealed, unrestrained when avoiding the blasting spills over, promote the effect of tunnel drilling blasting, when the mouth is ended in the blasting, reverse twisting screw rod 5, make filling liquid 12 in first elastic bag 8 and the second elastic bag 7 retrieve to the liquid reserve tank 9 in, can be for next use and prepare.

Example 2

The difference between the embodiment 2 and the embodiment 1 is that the liquid storage cylinder 9 has a different shape, specifically, the liquid storage cylinder 9 is a conical cylinder, when the conical cylinder is placed in the blast hole 1, the end with the smaller diameter of the conical cylinder is fixedly connected with the first elastic bag 8, the larger part of the conical cylinder can be in close contact with the blast hole 1, a certain sealing effect is achieved on the blast hole 1, and meanwhile, the conical cylinder can adapt to the blast holes 1 with different diameters due to the change of the diameter of the conical cylinder.

It should be noted that, unless otherwise explicitly stated or limited, the terms "mounted," "connected," "fixed," and the like are used broadly in the present invention, and may be, for example, fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

The foregoing is merely an example of the present invention and common general knowledge of known specific structures and features of the embodiments is not described herein in any greater detail. It should be noted that, for those skilled in the art, without departing from the structure of the present invention, several changes and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.

Claims

1. The utility model provides a hole blocking device is used in tunnel drilling blasting acts on the big gun hole, a serial communication port, including the mounting panel, evenly be equipped with all around of mounting panel with big gun hole upper portion fixed connection's fixing bolt, the lower surface middle part of mounting panel is equipped with the stock solution section of thick bamboo, the upper end and the mounting panel fixed connection of stock solution section of thick bamboo, the lower extreme of stock solution section of thick bamboo is equipped with fixed connection's first elastic bag with it, the middle part of mounting panel is equipped with the nut, be equipped with the screw rod that matches with it in the nut, the screw rod is located the inside one end of stock solution section of thick bamboo and is equipped with the piston, be equipped with the filling liquid between piston and the first elastic bag.

2. The hole plugging device for tunnel drilling blasting according to claim 1, wherein the first elastic bag is a rubber bag.

3. The hole plugging device for tunnel drilling blasting according to claim 1, wherein the liquid storage cylinder is a cylindrical cylinder.

4. The hole plugging device for tunnel drilling blasting according to claim 1, wherein the liquid storage cylinder is a conical cylinder, and one end of the conical cylinder with a smaller diameter is fixedly connected with the first elastic bag.

5. The hole plugging device for tunnel drilling blasting according to claim 1, wherein the piston is provided with a plurality of first through holes which are uniformly distributed.

6. The hole plugging device for tunnel drilling blasting according to claim 1, wherein the outer wall of the liquid storage cylinder is provided with at least 2 sets of sealing mechanisms from top to bottom, and each sealing mechanism comprises a second through hole circumferentially arranged on the outer wall of the liquid storage cylinder and a second elastic bag arranged outside the second through hole and covering the second through hole.

7. The hole plugging device for tunnel drilling blasting according to claim 6, wherein the second elastic bag is annular and is also rubber bag.

8. The hole plugging device for tunnel drilling blasting according to claim 1, wherein an annular boss is provided on a lower surface of the mounting plate, the annular boss being located inside the fixing bolt.

9. The hole plugging device for tunnel drilling blasting according to claim 1, wherein a round handle is provided at an upper end of the screw rod.

10. The hole plugging device for tunnel drilling blasting according to claim 1, wherein the fixing bolt is an expansion bolt.