A blasting tube fixing device for rock and soil blasting

Abstract

The utility model discloses a kind of blast pipe fixing devices for rock-soil blasting, specifically related to rock-soil blasting technical field, including: outer cylinder, the inner wall of the outer cylinder is correspondingly fixedly connected with a pair of inner shell, the upper and lower sides of the inner shell are horizontally opened with eight third through holes, the inside of the third through hole of the outer side of the outer cylinder is slidably connected with telescopic claw, the inside of a pair of the inner shell is connected with three fixed rods, the one end of the fixed rod is connected with inner cylinder, by corresponding elastic setting a pair of clamping plate in the inside of inner cylinder, it is convenient to hold and fix for blast pipe, outer cylinder is inserted into blast hole, U-shaped insertion rod in the inside of inner shell is pulled out, after pulling out U-shaped insertion rod, the elastic recovery force of first spring drives telescopic claw on the upper and lower sides to pop out outward, telescopic claw front end is set as chamfer, can be inserted into the rock gap of blast hole inner wall, rigidly connect the whole device with hole wall, compared with using multiple air bag assemblies to inflate to fix blast pipe, operation fixed process is more simple.

Description

Technical Field

[0001] This utility model relates to the field of rock and soil blasting technology, and specifically to a blasting pipe fixing device for rock and soil blasting. Background Technology

[0002] Detonating pipes for rock and soil blasting typically refer to shaped charge blasting pipes. Their core principle is the use of the shaped charge effect, where a specially designed pipe concentrates and releases explosive energy. When the explosive detonates, the shaped charge channel directs the explosive energy in a specific direction, forming a high-density, high-velocity gas jet that effectively cuts and breaks up rock. Detonating pipe fixing devices are used to stably secure the blasting pipe within the blast hole or at relevant locations to ensure blasting effectiveness and construction safety.

[0003] Chinese patent discloses a device for fixing blasting pipes in rock and soil blasting (publication number CN115950319A). This patented technology uses multiple first fixing members arranged along the length of an annular support plate to fix the blasting pipe at multiple positions, thereby making the blasting pipe stable. Each first fixing member is equipped with an airbag assembly, and the blasting pipe can be fixed by inflating multiple airbag assemblies. However, the operation and fixing process is cumbersome. The multi-airbag system needs to be inflated one by one or in groups and the pressure needs to be checked, which prolongs the operation time of fixing the blasting pipe and is inefficient. Utility Model Content

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A device for fixing blasting pipes for rock and soil blasting includes:

[0006] The outer cylinder has a pair of inner shells fixedly connected to its inner wall. Eight third through holes are opened laterally on both the upper and lower sides of the inner shells. A first through hole is opened on the outer side of the outer cylinder near the third through hole. A telescopic claw is slidably connected inside the third through hole. The telescopic claw extends into the inside of the first through hole. A drive mechanism is provided at the bottom of the telescopic claw.

[0007] The telescopic claws on the upper and lower sides are equipped with positioning mechanisms inside;

[0008] Each pair of inner shells is connected to three fixing rods on its inner side. One end of each fixing rod is connected to an inner cylinder. The outer side of each inner cylinder is provided with three pairs of second through holes in a transverse direction. An elastic mechanism is provided inside each of the second through holes. A clamping plate is connected to the bottom of the elastic mechanism.

[0009] In one possible implementation, the drive mechanism includes a partition, the left and right sides of which are fixedly connected to the inner wall of the inner shell, and eight first springs are laterally connected to the upper and lower sides of the partition, one end of each first spring being fixedly connected to a telescopic claw.

[0010] In one possible implementation, the bottom of the telescopic claw is provided with a groove, and one end of the first spring is fixedly connected to the top surface of the inner wall of the groove.

[0011] In one possible implementation, the positioning mechanism includes a positioning hole inside the telescopic claw, with a U-shaped insert rod penetrating through the interior of the positioning holes on both the upper and lower sides.

[0012] In one possible implementation, the elastic mechanism includes a second spring, one end of which is fixedly connected to the inner wall of the inner cylinder, and the other end of which is fixedly connected to a clamping plate. A connecting rod is sleeved inside the second spring, one end of which is fixedly connected to the clamping plate, and the other end of which passes through the interior of the second through hole.

[0013] In one possible implementation, the front side of the clamp is provided with rounded corners.

[0014] In one possible implementation, the front end of the first through hole is chamfered.

[0015] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0016] By elastically setting a pair of clamps inside the inner cylinder, the blasting tube can be easily clamped and fixed. Then, the outer cylinder is inserted into the blast hole. After that, the U-shaped insert rod inside the inner shell is pulled out. After pulling out the U-shaped insert rod, the elastic restoring force of the first spring drives the upper and lower telescopic claws to pop outward. The front end of the telescopic claw is set with a chamfer, which can penetrate into the rock crevices of the inner wall of the blast hole, and rigidly connect the entire device to the hole wall. Compared with using multiple airbag components to inflate and fix the blasting tube, the operation and fixing process is much simpler. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

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

[0019] Figure 2 This is an exploded view of the outer cylinder and inner shell of this utility model;

[0020] Figure 3 This is a side sectional view of the inner shell of this utility model;

[0021] Figure 4This is a side sectional view of the telescopic claw of this utility model;

[0022] Figure 5 This is a side sectional view of the inner cylinder of this utility model.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Outer cylinder; 2. Telescopic claw; 3. Inner shell; 4. U-shaped insert rod; 5. Inner cylinder; 6. Clamping plate; 7. First through hole; 8. Fixing rod; 9. Partition plate; 10. Positioning hole; 11. Groove; 12. First spring; 13. Second through hole; 14. Rounded corner; 15. Connecting rod; 16. Second spring; 17. Third through hole; 18. Chamfer. Detailed Implementation

[0025] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0026] This application provides a device for fixing blasting pipes for rock and soil blasting, thereby solving the problems in the prior art.

[0027] The technical solution in this application is to solve the above problems, and the overall approach is as follows:

[0028] like Figures 1-5 As shown, a blasting pipe fixing device for rock and soil blasting includes:

[0029] The outer cylinder 1 has a pair of inner shells 3 fixedly connected to its inner wall. The inner shells 3 have eight third through holes 17 opened laterally on both the upper and lower sides. The outer cylinder 1 has a first through hole 7 opened on its outer side near the third through hole 17. The third through hole 17 has a telescopic claw 2 slidably connected inside. The telescopic claw 2 extends into the first through hole 7. The bottom of the telescopic claw 2 is provided with a drive mechanism.

[0030] The upper and lower telescopic claws 2 are equipped with positioning mechanisms inside;

[0031] Three fixing rods 8 are connected to the inner side of each pair of inner shells 3. One end of the fixing rod 8 is connected to the inner cylinder 5. Three pairs of second through holes 13 are opened laterally on the outer side of the inner cylinder 5. An elastic mechanism is installed inside the second through hole 13. A clamping plate 6 is connected to the bottom of the elastic mechanism.

[0032] In some examples, the drive mechanism includes a partition 9, with both the left and right sides of the partition 9 fixedly connected to the inner wall of the inner shell 3. Eight first springs 12 are horizontally connected to both the upper and lower sides of the partition 9. One end of the first spring 12 is fixedly connected to the telescopic claw 2. The symmetrical spring layout can make the insertion force of the telescopic claw 2 on the hole wall evenly distributed, avoiding the device from tilting in the hole due to excessive force on one side.

[0033] In some examples, the bottom of the telescopic claw 2 is provided with a groove 11, and one end of the first spring 12 is fixedly connected to the top surface of the inner wall of the groove 11.

[0034] In some examples, the positioning mechanism includes a positioning hole 10 inside the telescopic claw 2. A U-shaped insert 4 is connected through the inside of the positioning holes 10 on both the upper and lower sides. After the U-shaped insert 4 is pulled out of the inner shell 3, the elastic restoring force of the first spring 12 drives the telescopic claws 2 on both the upper and lower sides to pop out. Conversely, the U-shaped insert 4 is inserted into the telescopic claws 2 on both the upper and lower sides, which facilitates the limiting of the telescopic claws 2 on both the upper and lower sides.

[0035] In some examples, the elastic mechanism includes a second spring 16, one end of which is fixedly connected to the inner wall of the inner cylinder 5, and the other end of which is fixedly connected to the clamping plate 6. A connecting rod 15 is sleeved inside the second spring 16, one end of which is fixedly connected to the clamping plate 6, and the other end of which passes through the interior of the second through hole 13. The elastic restoring force of the second spring 16 acts directly on the clamping plate 6. When the rupture tube is placed into the inner cylinder 5, the clamping plate 6 is compressed and stores elastic force through spring deformation, forming a continuous clamping of the rupture tube. Compared with a rigid structure without springs, this design can be adapted to rupture tubes of different diameters.

[0036] In some examples, the front side of the clamping plate 6 is provided with a rounded corner 14, which facilitates the sliding of the blasting tube into the clamping plates 6 on both sides.

[0037] In some examples, the front end of the first through hole 7 is provided with a chamfer 18. By setting the chamfer 18, it can penetrate into the rock crevice of the inner wall of the blast hole, and rigidly connect the entire device to the hole wall.

[0038] This invention uses a pair of clamping plates 6 elastically set inside the inner cylinder 5 to facilitate clamping and fixing the blasting tube. Then, the outer cylinder 1 is inserted into the blasting hole. Subsequently, the U-shaped insert 4 inside the inner shell 3 is pulled out. After the U-shaped insert 4 is pulled out, the elastic restoring force of the first spring 12 drives the upper and lower telescopic claws 2 to pop outward. The front end of the telescopic claw 2 is set with a chamfer 18, which can penetrate into the rock crevices of the inner wall of the blasting hole, and rigidly connect the entire device to the hole wall. Compared with using multiple airbag components to inflate and fix the blasting tube, the operation and fixing process is simpler.

[0039] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A blasting tube fixing device for rock and earth blasting, characterized by, include: The outer cylinder (1) has a pair of inner shells (3) fixedly connected to its inner wall. The inner shells (3) have eight third through holes (17) opened laterally on both the upper and lower sides. The outer cylinder (1) has a first through hole (7) opened on its outer side near the third through hole (17). The third through hole (17) is slidably connected to a telescopic claw (2). The telescopic claw (2) extends into the first through hole (7). The bottom of the telescopic claw (2) is provided with a driving mechanism. The telescopic claws (2) on the upper and lower sides are equipped with positioning mechanisms inside; Three fixing rods (8) are connected to the inner side of each pair of inner shells (3). One end of the fixing rod (8) is connected to the inner cylinder (5). Three pairs of second through holes (13) are opened laterally on the outer side of the inner cylinder (5). An elastic mechanism is provided inside the second through hole (13). A clamping plate (6) is connected to the bottom of the elastic mechanism.

2. The device according to claim 1, characterized in that: The driving mechanism includes a partition (9), the left and right sides of which are fixedly connected to the inner wall of the inner shell (3), and eight first springs (12) are horizontally connected to the upper and lower sides of the partition (9), one end of the first spring (12) being fixedly connected to the telescopic claw (2).

3. The device according to claim 2, characterized in that: The bottom of the telescopic claw (2) is provided with a groove (11), and one end of the first spring (12) is fixedly connected to the top surface of the inner wall of the groove (11).

4. The blasting pipe fixing device for rock and soil blasting according to claim 1, characterized in that: The positioning mechanism includes a positioning hole (10) inside the telescopic claw (2), and a U-shaped insert (4) is connected through the inside of the positioning hole (10) on the upper and lower sides.

5. A blasting pipe fixing device for rock and soil blasting according to claim 1, characterized in that: The elastic mechanism includes a second spring (16), one end of which is fixedly connected to the inner wall of the inner cylinder (5), and the other end of which is fixedly connected to the clamping plate (6). A connecting rod (15) is sleeved inside the second spring (16), one end of which is fixedly connected to the clamping plate (6), and the other end of which passes through the interior of the second through hole (13).

6. A blasting pipe fixing device for rock and soil blasting according to claim 1, characterized in that: The front side of the clamp (6) is provided with a rounded corner (14).

7. A blasting pipe fixing device for rock and soil blasting according to claim 1, characterized in that: The front end of the first through hole (7) is provided with a chamfer (18).

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