Anti-interference device for electronic leg wire of civil blasting detonator

Abstract

The utility model relates to the technical field of blasting detonators, and discloses a civil blasting detonator electronic leg wire anti-interference device which comprises a shell and a clamping plate, baffles are symmetrically arranged on one side of the shell, the shell and the baffles are each composed of an electrostatic shielding layer, a metal shielding layer and an insulating layer, and the electrostatic shielding layer, the metal shielding layer and the insulating layer are sequentially arranged from inside to outside. The two clamping plates are symmetrically arranged on the side, away from the baffles, of the shell, the clamping plates are arc-shaped plates, the outer diameters of the two ends of each clamping plate are different, and the outer sides of the two clamping plates are in threaded connection with fixing rings. Threads matched with the fixing rings are arranged on the side walls of the clamping plates, and the upper side and the lower side of the shell are connected with opening structures matched with the clamping plates. The anti-interference device has the advantages of being convenient to adjust and replace, suitable for electronic leg wires of different models and good in anti-interference effect.

Description

Technical Field

[0001] The utility model relates to the technical field of blasting detonators, in particular to an electronic leg line anti-interference device for civil blasting detonators. Background Art

[0002] Civilian blasting detonator is a detonating device used in civil blasting projects. It usually consists of an explosive cartridge, a wire and a detonating device. During blasting operations, the civil blasting detonator is placed in the blasting material and remotely triggered by electrical signals or other means to detonate the explosives, thereby achieving the purpose of the blasting operation. Civilian blasting detonators are widely used in mining, construction, water conservancy and other fields.

[0003] Civilian detonators are detonated by electronic leg wires. The electronic leg wires are exposed and easily interfered by the external environment, which makes the detonators have great safety hazards. Therefore, it is necessary to use anti-interference devices to protect the electronic leg wires. The existing anti-interference devices of the electronic leg wires of civilian blasting detonators are usually shells. The shells have waterproof and dustproof effects, but the shells are fixed on the electronic leg wires, and cannot be quickly replaced or adjusted in position, and cannot be adjusted in size according to the model of the electronic leg wire. The use limitations are large. In addition, a single shell does not have good anti-magnetic interference and anti-static effects, and the anti-interference effect is not ideal. Utility Model Content

[0004] In order to solve the above-mentioned problems, the utility model provides an anti-interference device for electronic foot wires of civil blasting detonators, which is convenient to adjust and replace, suitable for electronic foot wires of different models and has good anti-interference effect.

[0005] In order to solve the above-mentioned technical problems, the technical solution proposed by the utility model is: an anti-interference device for electronic foot line of civil blasting detonator, comprising a shell and a clamp, a baffle is symmetrically arranged on one side of the shell, the shell and the baffle are both composed of an electrostatic shielding layer, a metal shielding layer and an insulating layer, the electrostatic shielding layer, the metal shielding layer and the insulating layer are arranged in sequence from the inside to the outside, a grounding wire is arranged below the electrostatic shielding layer, the lower end of the grounding wire passes through the metal shielding layer and the insulating layer in sequence and is arranged below the shell, the baffles are rotatably connected to a push block on one side away from each other, the push block is slidably connected to the side wall of the shell, a spring is connected between the push block and the baffle, the two clamps are symmetrically arranged on the side of the shell away from the baffle, the clamp is an arc plate, the outer diameters of the two ends of the clamp are different, the outer sides of the two clamps are threadedly connected with a fixing ring, the side walls of the clamp are provided with a thread matching the fixing ring, and the upper and lower sides of the shell are connected with a support structure matching the clamp.

[0006] Furthermore, a T-shaped slide bar is symmetrically connected to the push block, and a T-shaped slide groove matching the T-shaped slide bar is provided on the side wall of the shell.

[0007] Furthermore, a rubber pad is connected to the inner side of the clamping plate.

[0008] Furthermore, the push block and the side wall of the fixing ring are both provided with anti-slip protrusions.

[0009] Furthermore, the support structure includes a sliding rod, a slider and spring 2. The sliding rod is fixed to the shell by fixing plates fixed at both ends of the sliding rod. The two sliders are symmetrically slidably arranged on the sliding rod. The spring 2 is sleeved on both ends of the sliding rod. The two ends of the spring 2 are respectively connected to the slider and the fixing plate. The two sliders are respectively connected to the two clamping plates through connecting rods.

[0010] Furthermore, the sliding rod is a square rod, and the sliding hole in the center of the sliding block that matches the sliding rod is a square hole.

[0011] Compared with the prior art, the utility model has the following advantages: the clamping plate can stably clamp and fix the electronic foot wire under the action of the fixing ring, and the fixing ring can be rotated to loosen and fix the electronic foot wire, which is convenient for replacement and adjustment. The outer diameters at both ends of the clamping plate are different, which is convenient for adjusting the distance between the clamping plates according to the model of the electronic foot wire, and is suitable for fixing different electronic foot wires. The shell composed of the electrostatic shielding layer, the metal shielding layer and the insulating layer can protect the electronic foot wire while taking into account the anti-static, anti-electromagnetic and other properties, and has a good anti-interference effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a three-dimensional diagram of the utility model;

[0013] Figure 2 It is the front view of the utility model;

[0014] Figure 3 It is a top view of the utility model;

[0015] Figure 4 It is a side view of the utility model;

[0016] Figure 5 It is a side sectional view of the utility model.

[0017] As shown in the figure: 1. Shell; 1.1. Electrostatic shielding layer; 1.2. Metal shielding layer; 1.3. Insulating layer; 1.4. Wire; 2. Clamp; 3. Baffle; 4. Push block; 5. Spring 1; 6. Fixed ring; 7. Rubber pad; 8. Sliding rod; 9. Sliding block; 10. Spring 2; 11. Fixed plate; 12. Connecting rod. DETAILED DESCRIPTION

[0018] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0019] Combined with Figure 1 To Attachment Figure 5, a civilian blasting detonator electronic foot line anti-interference device, including a shell 1 and a clamping plate 2, a baffle 3 is symmetrically arranged on one side of the shell 1, the shell 1 and the baffle 3 are both composed of an electrostatic shielding layer 1.1, a metal shielding layer 1.2 and an insulating layer 1.3, the electrostatic shielding layer 1.1, the metal shielding layer 1.2 and the insulating layer 1.3 are arranged in sequence from the inside to the outside, a grounding wire 1.4 is arranged below the electrostatic shielding layer 1.1, and the lower end of the grounding wire 1.4 passes through the metal shielding layer 1.2 and the insulating layer 1.3 in sequence and is arranged below the shell 1, the baffle 3 is rotatably connected to one side away from each other with a push block 4, the push block 4 is slidably connected to the side wall of the shell 1, a spring 5 is connected between the push block 4 and the baffle 3, the push block 4 is symmetrically connected with a T-shaped slide bar, and the side wall of the shell 1 is provided with a T-shaped slide groove matching the T-shaped slide bar, the cooperation of the two sets of T-shaped slide bars and the T-shaped slide groove can make the push block 4 move stably, thereby realizing the stable movement of the baffle.

[0020] Combined with Figure 1 , Attachment Figure 5 The two clamps 2 are symmetrically arranged on the side of the shell 1 away from the baffle 3. The clamps 2 are arc-shaped plates. A rubber pad 7 is connected to the inner side of the clamps 2. The rubber pad 7 can prevent the clamps 2 from damaging the electronic foot line and increase its stability.

[0021] Combined with Figure 1 , Attachment Figure 2 , Attachment Figure 3 The outer diameters of the two ends of the clamping plate 2 are different. The outer sides of the two clamping plates 2 are threadedly connected with a fixing ring 6. The side walls of the push block 4 and the fixing ring 6 are both provided with anti-slip protrusions to facilitate pushing the push block 4 and rotating the fixing ring 6.

[0022] Combined with Figure 1 , Attachment Figure 3 , Attachment Figure 4 , Attachment Figure 5 , the upper and lower sides of the shell 1 are connected with a support structure matching the clamping plate 2. The support structure includes a slide bar 8, a slider 9 and a spring 10. The slide bar 8 is fixed on the shell 1 through a fixed plate 11 fixed at both ends thereof. The two sliders 9 are symmetrically slidably arranged on the slide bar 8. The spring 10 is sleeved at both ends of the slide bar 8. The two ends of the spring 10 are respectively connected to the slide bar 9 and the fixed plate 11. The two sliders 9 are respectively connected to the two clamping plates 2 through a connecting rod 12. The spring 10 can make the clamping plates 2 automatically move away from each other when the fixing ring 6 rotates in the opposite direction, which is convenient for the installation and replacement of the device. The slide bar 8 is a square rod, and the sliding hole in the center of the slider 9 that matches the slide bar 8 is a square hole, which can prevent the slider 9 from rotating and causing the clamping plate 2 to shake, and is stable and reliable.

[0023] The specific implementation mode of the utility model is as follows: the electronic leg wire of the civilian blasting detonator is passed through between two clamping plates 2 and placed into the shell 1, the push block 4 is pushed to one end, so that the baffle 3 blocks and closes the end of the shell 1 under the action of the spring 5, and the fixing ring 6 is rotated. The fixing ring 6 moves to make the two clamping plates 2 approach each other until the two clamping plates 2 cooperate to clamp the electronic leg wire. During the process, the slider 9 moves with the clamping plate 2 and stretches the spring 10. At this time, the shell 1 can stably protect the electronic leg wire. When blasting is required, the push block 4 can be pushed along the T-shaped slide bar, and the push block 4 pulls the baffle 3 to move. The baffle 3 rotates under the action of the edge of the shell 1, and the spring 5 is compressed until the baffle 3 has no obstruction on the end of the shell 1, and the electronic leg wire can be extended from this end into the shell 1 to control the detonator.

[0024] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the term "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A civilian blasting detonator electronic leg wire anti-interference device, comprising a housing (1) and a clamping plate (2), characterized in that: A baffle (3) is symmetrically provided on one side of the shell (1); the shell (1) and the baffle (3) are both composed of an electrostatic shielding layer (1.1), a metal shielding layer (1.2) and an insulating layer (1.3); the electrostatic shielding layer (1.1), the metal shielding layer (1.2) and the insulating layer (1.3) are arranged in sequence from the inside to the outside; a grounding wire (1.4) is provided below the electrostatic shielding layer (1.1); the lower end of the grounding wire (1.4) passes through the metal shielding layer (1.2) and the insulating layer (1.3) in sequence and is provided below the shell (1). The baffle plates (3) are rotatably connected to one side away from each other with a push block (4), the push block (4) is slidably connected to the side wall of the shell (1), a spring (5) is connected between the push block (4) and the baffle plate (3), the two clamping plates (2) are symmetrically arranged on the side of the shell (1) away from the baffle plate (3), the clamping plates (2) are arc-shaped plates, the outer diameters of the two ends of the clamping plates (2) are different, the outer sides of the two clamping plates (2) are threadedly connected with a fixing ring (6), and the upper and lower sides of the shell (1) are connected with a support structure matching the clamping plates (2).

2. The electronic leg line anti-interference device for civilian blasting detonators according to claim 1 is characterized by: The push block (4) is symmetrically connected with a T-shaped slide bar, and the side wall of the shell (1) is provided with a T-shaped slide groove matching the T-shaped slide bar.

3. The electronic leg line anti-interference device for civilian blasting detonators according to claim 1 is characterized by: The inner side of the clamping plate (2) is connected with a rubber pad (7).

4. The electronic leg line anti-interference device for civilian blasting detonators according to claim 1 is characterized by: Anti-slip protrusions are provided on the side walls of the push block (4) and the fixing ring (6).

5. The electronic leg line anti-interference device for civilian blasting detonators according to claim 1 is characterized by: The support structure comprises a slide bar (8), a slider (9) and a second spring (10); the slide bar (8) is fixed to the housing (1) via fixed plates (11) fixed at both ends thereof; the two sliders (9) are symmetrically slidably arranged on the slide bar (8); the second spring (10) is sleeved at both ends of the slide bar (8); the two ends of the second spring (10) are respectively connected to the slide bar (9) and the fixed plate (11); the two sliders (9) are respectively connected to the two clamping plates (2) via a connecting rod (12).

6. The electronic leg line anti-interference device for civilian blasting detonators according to claim 5 is characterized by: The slide rod (8) is a square rod, and the slide hole in the center of the slider (9) that matches the slide rod (8) is a square hole.

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