Blasting tube fixing device for tunnel blasting

Abstract

The utility model discloses a blast tube fixing device for tunnel blasting. The blast tube fixing device comprises a main body structure, the main body structure comprises a baffle plate and a fixed plate; the baffle is arranged in a circular shape, the two sets of fixing plates are arranged at the bottom of the baffle in a sliding mode, and the baffle is provided with a notch for a blasting pipe trigger fuse to pass through. The fixing plate is arranged in an arc shape, anti-slip strips are distributed on the outer wall of the fixing plate, and the fixing plate abuts against the inner wall of the blast hole through a compression spring so that the detonator can be prevented from sliding off from the blast hole. The device is simple in structure and convenient to use, a main body is formed by the baffle and the fixing plate, after the fixing plate is expanded through the compression spring, the blast pipe can be fixed in the blast hole, operation is easy and convenient, cost is low, and the device can be used as a disposable fixing piece; and a convenient and high-cost-performance channel is provided for tunnel blasting operation and fixing of the blasting pipe.

Description

Technical Field

[0001] The utility model relates to the technical field of blasting tube fixing equipment, in particular to a blasting tube fixing device for tunnel blasting. Background Art

[0002] Tunnel blasting refers to a method of operation during tunnel construction or maintenance that uses the energy generated by explosive detonations to break rock and geological materials, thereby enabling tunnel excavation and construction. This method is commonly used in underground tunnel construction involving hard rock or complex geological conditions. By drilling a hole into the rock, inserting explosives, and then detonating the explosives, the shockwave generated by the detonation and the work done by the explosives break up the rock mass, thereby achieving the tunnel excavation goal. This method is widely used in tunneling projects, particularly in hard rock conditions where excavation is difficult, and can significantly improve construction efficiency.

[0003] During blasting operations, especially tunnel blasting, it is necessary to first drill a blasting hole on the mountain, and then insert the blasting tube into the blasting hole for detonation. In order to insert the blasting tube, the diameter of the blasting hole is often larger than the blasting tube. Therefore, for a blasting hole at a downward slope or on the top of a tunnel, if the fixing device is not used, the blasting tube will slip out of the blasting hole. After searching, the Chinese patent application number is: CN202321696817.8, which discloses a blasting tube fixing device for tunnel blasting, including a main mechanism and an auxiliary mechanism, the auxiliary mechanism is located at the upper end of the main mechanism, the main mechanism includes a device body, a damper and a support plate, the damper is fixedly mounted on the upper end of the device body, the support plate is fixedly mounted on the upper end of the damper, the main mechanism also includes an arc-shaped clamping plate, a buffer spring and a buffer plate, and the arc-shaped clamping plate is movably mounted above the device body. The blasting tube fixing device for tunnel blasting realizes a certain buffering and protective effect of the device body itself during the fixing process of the blasting tube by installing the main body mechanism, which reduces the impact on the device body caused by the blasting project, thereby reducing the risk of damage to the device body due to the large blasting force, thereby extending the service life of the device body and improving the protectiveness of the device body.

[0004] The blasting tube fixing device in the above technical solution is cumbersome to operate and has a complex structure, so it is expensive. Once damaged after a single blast, a new fixing device needs to be replaced, and continuous blasting operations require higher costs. Therefore, we need to propose a blasting tube fixing device for tunnel blasting. Utility Model Content

[0005] The purpose of the utility model is to provide a blasting tube fixing device for tunnel blasting. The device has a simple structure and is easy to use. The main body is composed of a baffle and a fixing plate. After the fixing plate is expanded by a compression spring, the blasting tube can be fixed inside the blasting hole. The device is not only easy to operate but also low in cost. It can be used as a disposable fixing part, providing a convenient and cost-effective channel for tunnel blasting operations and the fixing of blasting tubes, thereby solving the problems raised in the above-mentioned background technology.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A blasting tube fixing device for tunnel blasting, comprising:

[0008] Main structure;

[0009] The main structure includes a baffle and a fixing plate;

[0010] The baffle is arranged in a circular shape, and two sets of fixed plates are provided, and the fixed plates are slidably arranged at the bottom of the baffle. A notch is provided on the baffle for the blasting tube to trigger the fuse to pass through;

[0011] The fixing plate is arranged in an arc shape, and anti-slip strips are distributed on the outer wall of the fixing plate. The fixing plate contacts the inner wall of the blasting hole through a compression spring to prevent the detonator from sliding out of the blasting hole.

[0012] Preferably, two groups of sliding rods are symmetrically arranged on the top of the fixed plate, and two groups of sliding grooves are opened on both sides of the notch on the baffle, and the sliding rods and the sliding grooves are slidably matched.

[0013] Preferably, a connecting plate is provided between the upper ends of the two groups of sliding rods located on the same side, a protrusion is provided on the connecting plate, and a shifting block for shifting the protrusion is provided on the top of the protrusion.

[0014] Preferably, one side of the two groups of protrusions is provided with a connecting rod, and the other side of the two groups of protrusions is provided with a through hole.

[0015] Preferably, the connecting rods on the two groups of protrusions are slidably inserted into the through holes on the two groups of protrusions, and the ends of the two groups of connecting rods are provided with limit blocks.

[0016] Preferably, compression springs are slidably sleeved on the two groups of connecting rods, and two ends of the compression springs respectively abut against the two groups of protrusions.

[0017] Compared with the prior art, the beneficial effects of the present invention are:

[0018] The utility model discloses a device is simple in structure and convenient to use, and its main body is formed by the baffle plate and the fixing plate, and the fixing plate is slidably installed on one side of the baffle plate by a sliding rod, and the fixing plate is arranged in the shape of an arc sheet, and an anti-slip strip is arranged on the outer wall of the fixing plate, and a protrusion is arranged on the connecting plate at the upper end of the sliding rod. The two sets of protrusions are connected by a connecting rod and a compression spring is sleeved on the connecting rod. The device has a simple structure and is convenient to use. The baffle plate and the fixing plate form a main body, and after the fixing plate is stretched open by the compression spring, the blasting tube can be fixed inside the blasting hole. It is not only easy to operate but also low in cost, and can be used as a disposable fixing part, providing a convenient and cost-effective channel for tunnel blasting operations and the fixing of blasting tubes. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural diagram of the utility model;

[0020] Figure 2 This is a structural diagram of the chute of the utility model;

[0021] Figure 3 This is a structural diagram of the fixing plate of the utility model;

[0022] Figure 4 This is a schematic structural diagram of the baffle of the utility model;

[0023] Figure 5 It is a structural schematic diagram of the connecting rod of the utility model.

[0024] In the figure: 1. baffle; 2. fixing plate; 3. anti-slip strip; 4. notch; 5. slide groove; 6. slide rod; 7. connecting plate; 8. protrusion; 9. shift block; 10. through hole; 11. connecting rod; 12. limit block; 13. compression spring. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] See also Figure 1-5 , the utility model provides a technical solution:

[0027] A blasting tube fixing device for tunnel blasting, comprising:

[0028] Main structure; the main structure includes a baffle 1 and a fixing plate 2;

[0029] The baffle 1 is circular and features two sets of fixed plates 2, which slide along its bottom. A notch 4 is provided on the baffle 1 for the blasting tube trigger fuse to pass through. Two sets of slide bars 6 are symmetrically positioned on the top of the fixed plate 2. Two sets of slide grooves 5 are provided on either side of the notch 4, with the slide bars 6 and the slide grooves 5 slidingly engaging with each other. A connecting plate 7 is positioned between the upper ends of the two sets of slide bars 6 on the same side. This connecting plate 7 is equipped with a bump 8, and a shifting block 9 is located on top of each bump 8 to shift the bump 8.

[0030] The fixing plate 2 is designed in an arc shape, and its outer wall is provided with anti-slip strips 3. The fixing plate 2 abuts against the inner wall of the blasting hole via compression springs 13 to prevent the detonator from sliding out of the blasting hole. Connecting rods 11 are provided on one side of each set of protrusions 8, and through holes 10 are provided on the other side of each set of protrusions 8. The connecting rods 11 on the two sets of protrusions 8 slide and insert into the through holes 10 of the two sets of protrusions 8. Limiting blocks 12 are provided at the ends of each set of connecting rods 11. Compression springs 13 are slidably mounted on each set of connecting rods 11, and the ends of the compression springs 13 abut against the two sets of protrusions 8.

[0031] By setting a baffle 1 and a fixed plate 2, the fixed plate 2 is slidably installed on one side of the baffle 1 through a slide rod 6. The fixed plate 2 is set in an arc-shaped sheet, and an anti-slip strip 3 is set on the outer wall of the fixed plate 2. A protrusion 8 is set on the connecting plate 7 at the upper end of the slide rod 6. The two groups of protrusions 8 are connected by a connecting rod 11 and a compression spring 13 is sleeved on the connecting rod 11. In actual use, after a blasting hole is opened on the mountain, the blasting tube is inserted into the hole, and the two groups of shift blocks 9 are pressed. After the two groups of fixed plates 2 are close to each other, the two groups of fixed plates 2 are inserted into the hole, and the fixed plates 2 are located between the blasting tube and the outer wall and the inner wall of the blasting hole. When the baffle 1 hits the mountain, the shift block 9 is released. Under the action of the compression spring 13, the two groups of fixed plates 2 move away from each other, and the outer wall of the fixed plate 2 hits the inner wall of the blasting hole to be positioned;

[0032] At this time, under the action of the baffle 1, the blasting tube cannot slide out or fall out of the blasting hole, and the fuse of the blasting tube can be connected to the device by triggering the notch 4 on the baffle 1, which is simple to operate and quick and convenient to use;

[0033] In general, the device has a simple structure and is easy to use. The main body is composed of a baffle 1 and a fixing plate 2. After the fixing plate 2 is opened by the compression spring 13, the blasting tube can be fixed inside the blasting hole. It is not only easy to operate but also low in cost. It can be used as a disposable fixing part, providing a convenient and cost-effective channel for tunnel blasting operations and the fixation of blasting tubes.

[0034] Among them, the baffle 1, the fixing plate 2 and other components of the device except the compression spring 13 can be set to plastic material, which is low in cost. If damaged in a single blasting, using a new device for the next blasting will not cause high costs;

[0035] Among them, the anti-slip strip 3 can be integrally formed with the fixing plate 2 and set to plastic material. A more preferred solution is to set the anti-slip strip 3 to rubber material, which can increase the adhesion between the fixing plate 2 and the inner wall of the blasting hole, increase friction, and improve reliability.

[0036] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A blasting tube fixing device for tunnel blasting, characterized in that: include: Main structure; The main structure comprises a baffle (1) and a fixing plate (2); The baffle (1) is arranged in a circular shape, and two sets of fixed plates (2) are provided, and the fixed plates (2) are slidably arranged at the bottom of the baffle (1). The baffle (1) is provided with a notch (4) for the blasting tube trigger fuse to pass through. The fixing plate (2) is arranged in an arc shape, and anti-slip strips (3) are distributed on the outer wall of the fixing plate (2). The fixing plate (2) contacts the inner wall of the blasting hole through the compression spring (13) to prevent the detonator from sliding out of the blasting hole.

2. A blasting tube fixing device for tunnel blasting according to claim 1, characterized in that: Two groups of slide bars (6) are symmetrically arranged on the top of the fixed plate (2), and two groups of slide grooves (5) are provided on both sides of the notch (4) on the baffle (1), and the slide bars (6) and the slide grooves (5) are slidably matched.

3. The blasting tube fixing device for tunnel blasting according to claim 2, characterized in that: A connecting plate (7) is provided between the upper ends of the two groups of slide bars (6) located on the same side, a convex block (8) is provided on the connecting plate (7), and a shifting block (9) for shifting the convex block (8) is provided on the top of the convex block (8).

4. A blasting tube fixing device for tunnel blasting according to claim 3, characterized in that: One side of the two groups of protrusions (8) is provided with a connecting rod (11), and the other side of the two groups of protrusions (8) is provided with a through hole (10).

5. The blasting tube fixing device for tunnel blasting according to claim 4, characterized in that: The connecting rods (11) on the two groups of protrusions (8) are slidably inserted into the through holes (10) on the two groups of protrusions (8), and the ends of the two groups of connecting rods (11) are both provided with limit blocks (12).

6. A blasting tube fixing device for tunnel blasting according to claim 5, characterized in that: Compression springs (13) are slidably sleeved on the two groups of connecting rods (11), and the two ends of the compression springs (13) respectively contact the two groups of protrusions (8).

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