Electronic detonator for blasting open-air sandstone coal mine

Abstract

The utility model discloses an outdoor sandstone coal mine blasting electronic detonator, and relates to the technical field of sandstone coal mine blasting. An inner shell is in threaded fit with the inside of the outer shell, a plurality of rotating shafts are in running fit with the peripheral side of the lower end of the inner shell, triangular arc-shaped plates are fixed on the peripheral sides of the rotating shafts, supporting rods are fixed on the peripheral sides of one ends of the rotating shafts, and pull rods are in running fit with one ends of the supporting rods. According to the utility model, the electronic detonator body is arranged in the inner shell, and the outer shell is in threaded fit with the inner shell, so that the plurality of triangular arc-shaped plates and the inner shell can be driven to extend into the ground for drilling, and then the plurality of pull rods can be driven to move downwards by pushing the annular plate, so that the angles of the plurality of triangular arc-shaped plates are changed; the lower ends of the triangular arc-shaped plates are relatively far away from each other to be opened, so that the electronic detonator body is quickly buried, the operation is simple and convenient, the complex working process of the blasting electronic detonator in use is reduced, and the overall working efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to sandstone coal mine blasting field, concretely relates to a kind of open sandstone coal mine blasting electronic detonator. BACKGROUND

[0002] Electronic detonator, also called digital electronic detonator, digital detonator or industrial digital electronic detonator, is an electric detonator using electronic control module to control the initiation process. The electronic control module refers to a special circuit module placed inside the digital electronic detonator, which has the functions of detonator initiation delay time control and initiation energy control, and is equipped with internal detonator identity information code and initiation password. It can test its own functions, performance and the electrical properties of detonator ignition element, and communicate with initiation controller and other external control devices. Some open sandstone coal mines need to use electronic detonator for blasting during mining.

[0003] Chinese patent with publication number CN212227891U discloses an electronic detonator for underground mine exploitation, which includes a shell, a foot line inserted into the top of the shell, a sealing plug installed at the top of the inner cavity of the shell, an electronic chip installed below the sealing plug, and a drug head below the electronic chip. When the electronic detonator is connected to a special initiator to form a network, the initiator is opened by a special program, and the initiation program is started. The initiator detects the number of electronic detonators, and after reliable network connection, the initiator downloads the working code online or offline according to the requirements of prohibition, permission, location area, time range, etc. After the completion of working code download, the blasting worker is prompted to initiate, and the blasting worker can initiate normally by pressing the initiation program. The use is safe, the electronic chip starts timing and connects the output energy capacitor to power the bridge wire, the bridge wire heats up to ignite the drug head, making the economic electronic detonator different from the traditional coal mine permissible electronic detonator, and the use is safe.

[0004] When using electronic detonator to blast open sandstone coal mine, the electronic detonator needs to be buried to a specified depth first, and then detonated. However, in the prior art, the electronic detonator is usually buried after drilling at the blasting point, which is complicated and time-consuming, resulting in low overall work efficiency.

[0005] Therefore, the utility model is proposed. UTILITY MODEL CONTENT

[0006] The technical problem to be solved by the utility model is to overcome the shortcomings of the prior art and provide an open sandstone coal mine blasting electronic detonator to solve the problems raised in the background.

[0007] To solve the above technical problems, the basic idea of the technical solution of the utility model is:

[0008] An electronic detonator for blasting in open-pit sandstone and coal mines includes: an outer shell, an inner shell that is threaded into the inner shell, a plurality of rotating shafts that are rotatably fitted around the lower end of the inner shell, a triangular arc plate that is fixed around the circumference of the rotating shafts, a support rod that is fixed around one end of the rotating shafts, a pull rod that is rotatably fitted around one end of the support rod, an annular plate that is fixed at the upper end of the plurality of pull rods, and an elastic ball bearing that is installed between the pull rod and the upper end of the inner shell.

[0009] A hydraulic cylinder is fixed in the middle of the upper part of the outer shell, and a push rod is fixed at the lower end of the hydraulic cylinder. The lower end of the push rod is rotatably engaged with the middle of the upper part of the inner shell. The electronic detonator body is installed inside the inner shell.

[0010] Optionally, a threaded groove is provided on the circumference of the inner wall of the outer shell, and the circumference of the inner shell is threadedly engaged with the threaded groove.

[0011] By adopting the above technical solution and utilizing the set threaded groove, the inner shell rotates synchronously with the threaded groove during descent, thereby allowing the inner shell to extend into the ground more quickly.

[0012] Optionally, multiple triangular arc plates are closed to form a conical structure, and a movable rod is fixed at one end of the support rod, with one end of the movable rod rotating in conjunction with the lower end of the pull rod.

[0013] By adopting the above technical solution, multiple triangular arc plates can be closed or opened, thus achieving a conical structure during drilling and an open state when burying the electronic detonator body, thereby better drilling and burying the electronic detonator body.

[0014] Optionally, the pull rod is slidably fitted at the middle of the upper end of the outer and inner shells, with the annular plate located above the outer shell.

[0015] By adopting the above technical solution, the ring plate can simultaneously pull multiple levers to move, and the levers can drive multiple triangular arc plates to close or open.

[0016] Optionally, the elastic ball bearings include multiple ball bearings elastically fixed to one side of the pull rod, and a groove opened in the inner wall of the upper middle part of the inner shell, the groove corresponding to the ball bearings.

[0017] By adopting the above technical solution, multiple ball bearings and grooves can be used to fix the pull rod at different positions, thereby better fixing the angle of multiple triangular arc plates.

[0018] Optionally, the hydraulic cylinder is located in the middle of the annular plate, and the lower end of the electronic detonator body corresponds to multiple triangular arc plates.

[0019] By adopting the above technical solution, the hydraulic cylinder can be used to drive the inner shell to descend and drill holes.

[0020] By adopting the above technical solution, this utility model has the following beneficial effects compared with the prior art. Of course, any product implementing this utility model does not necessarily need to achieve all of the following advantages at the same time:

[0021] By placing the electronic detonator body inside the inner shell and utilizing the threaded connection between the outer and inner shells, multiple triangular arc plates and the inner shell can be driven into the ground to drill holes. Then, by pushing the annular plate, multiple pull rods can be driven downward, thereby changing the angle of multiple triangular arc plates, so that the lower ends of multiple triangular arc plates are relatively far apart and open, realizing the rapid burial of the electronic detonator body. The operation is simple and convenient, reducing the complex workflow when using explosive electronic detonators and improving overall work efficiency.

[0022] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0023] The accompanying drawings described below are merely some embodiments. Those skilled in the art can obtain other drawings based on these drawings without any creative effort.

[0024] In the picture:

[0025] Figure 1 This is a schematic diagram of the outer shell structure;

[0026] Figure 2 This is a schematic diagram of a triangular arc-shaped plate structure;

[0027] Figure 3 This is a schematic diagram of the inner shell structure;

[0028] Figure 4 This is a schematic diagram of the electronic detonator body structure.

[0029] The attached diagram lists the components represented by each number as follows:

[0030] 1. Outer shell; 2. Inner shell; 3. Hydraulic cylinder; 4. Push rod; 5. Triangular arc plate; 6. Rotating shaft; 7. Support rod; 8. Pull rod; 9. Ring plate; 10. Electronic detonator body; 11. Impact ball; 12. Groove.

[0031] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0032] The present invention will now be described in further detail with reference to the accompanying drawings.

[0033] Please see Figures 1-4As shown, this embodiment provides an electronic detonator for blasting open-pit sandstone and coal mines, including a shell 1, an inner shell 2 that is threaded into the shell 1, a plurality of rotating shafts 6 that are rotatably fitted around the lower end of the inner shell 2, a triangular arc plate 5 that is fixed around the circumference of the rotating shafts 6, a support rod 7 that is fixed around one end of the rotating shafts 6, a pull rod 8 that is rotatably fitted around one end of the support rod 7, an annular plate 9 that is fixed at the upper end of the plurality of pull rods 8, and an elastic ball bearing that is installed between the pull rods 8 and the upper end of the inner shell 2.

[0034] A hydraulic cylinder 3 is fixed in the middle of the upper part of the outer shell 1. A push rod 4 is fixed at the lower end of the hydraulic cylinder 3. The lower end of the push rod 4 is rotatably engaged with the middle of the upper end of the inner shell 2. An electronic detonator body 10 is installed inside the inner shell 2.

[0035] One application of this embodiment is as follows: When using electronic detonators for blasting in open-pit sandstone and coal mines, the electronic detonator body 10 is first placed inside the inner shell 2. Then, the annular plate 9 is pulled upwards, causing the annular plate 9 to drive multiple pull rods 8 to rise synchronously. The multiple pull rods 8 simultaneously drive multiple support rods 7 to move, causing the support rods 7 to drive the rotating shaft 6 to rotate. Then, the rotating shaft 6 drives the triangular arc plates 5 to move synchronously. At this time, the lower ends of the multiple triangular arc plates 5 are relatively close and in a closed state, elastically striking the ball and fixing the position of the pull rods 8. Then, the hydraulic cylinder is activated. 3. The output end of the hydraulic cylinder 3 drives the push rod 4 and the inner shell 2 to descend and extend from the lower end of the outer shell 1. At the same time, the circumference of the inner shell 2 is threaded with the inner wall of the outer shell 1, so that the inner shell 2 rotates synchronously during descent. Thus, the inner shell 2 unscrews the lower end of the outer shell 1 to drill a hole in the ground. Then, when the inner shell 2 descends to an appropriate height, the annular plate 9 is manually pushed downward. At this time, the working principle is the opposite of when the annular plate 9 rises. Then, the lower ends of the multiple triangular arc plates 5 are relatively far apart and in an open state. The electronic detonator body 10 falls into the blast hole through the multiple triangular arc plates 5 for burial. It should be noted that all electrical equipment involved in this application can be powered by a storage battery or an external power source.

[0036] like Figure 3 As shown, in this embodiment, the inner wall of the outer shell 1 has a threaded groove on its periphery, and the periphery of the inner shell 2 is threadedly engaged with the threaded groove. When the inner shell 2 descends inside the outer shell 1, the periphery of the inner shell 2 is threadedly engaged with the threaded groove on the inner wall of the outer shell 1, thereby enabling the inner shell 2 to rotate synchronously while descending, achieving the purpose of screwing into the ground.

[0037] like Figures 2-3As shown, in this embodiment, multiple triangular arc plates 5 are closed to form a conical structure. One end of the support rod 7 is fixed with a movable rod, and one end of the movable rod is rotatably engaged with the lower end of the pull rod 8. The pull rod 8 is slidably engaged in the middle of the upper end of the outer shell 1 and the inner shell 2, and the annular plate 9 is located above the outer shell 1. Manually pulling the annular plate 9 upward causes the annular plate 9 to drive multiple pull rods 8 to move upward synchronously. Then, the lower ends of the multiple pull rods 8 are rotatably engaged with the movable rod, and the movable rod drives one end of the support 7 to move upward. At this time, the other end of the support 7 drives the rotating shaft 6 to rotate, so that the rotating shaft 6 drives the triangular arc plates 5 to rotate. Thus, the lower ends of the multiple triangular arc plates 5 are relatively close together and closed to form a conical structure, which allows for rapid drilling of the blasting point.

[0038] like Figure 3 As shown, the elastic striking ball in this embodiment includes multiple striking balls 11 elastically fixed to one side of the pull rod 8, and a groove 12 formed on the inner wall of the upper middle part of the inner shell 2, with the groove 12 corresponding to the striking balls 11. When the multiple triangular arc plates 5 are opened or closed, the corresponding striking ball 11 on one side of the pull rod 8 will engage with the groove 12 on the inner wall of the upper middle part of the inner shell 2, thereby fixing the position of the pull rod 8.

[0039] like Figure 1 As shown, in this embodiment, the hydraulic cylinder 3 is located in the middle of the annular plate 9, and the lower end of the electronic detonator body 10 corresponds to multiple triangular arc plates 5. When the multiple triangular arc plates 5 are opened, the electronic detonator body 10 falls through the multiple triangular arc plates 5 to the buried location.

[0040] Specifically, the outer shell 1 may have a transparent surface around its perimeter. The transparent surface may be made of explosion-proof glass or explosion-proof transparent plastic. A scale may be provided on one side of the transparent surface to facilitate observation of the descent height of the inner shell 2, thereby more accurately burying the electronic detonator body 10 to the required depth. Multiple sliding grooves are provided in the middle of the upper end of both the outer shell 1 and the inner shell 2. The width of the sliding groove is greater than the width of the pull rod 8. Since the support rod 7 rotates along the pivot 6, the pull rod 8 will also have left and right displacements during the up-and-down sliding process. At this time, the pull rod 8 can slide up and down and left and right in the sliding groove. The front and rear sides of the pull rod 8 are in contact with the inner wall of the sliding groove, and there is a gap between the left and right sides of the pull rod 8 and the sliding groove. The groove 12 is opened on the front or rear side of the sliding groove, and the striking ball 11 is installed on the front or rear side of the pull rod 8. The striking ball 11 can have a limiting relationship with the groove 12.

[0041] This utility model is not limited to the above-described embodiments. Anyone should know that structural changes made under the guidance of this utility model, and any technical solutions that are the same as or similar to this utility model, fall within the protection scope of this utility model. Technical aspects, shapes, and structures not described in detail in this utility model are all publicly known technologies.

Claims

1. An electronic detonator for blasting in open-pit sandstone and coal mines, characterized in that, include: The outer shell (1) has an inner shell (2) with internal threads. Multiple rotating shafts (6) are rotatably fitted on the lower circumference of the inner shell (2). A triangular arc plate (5) is fixed on the circumference of the rotating shaft (6). A support rod (7) is fixed on the circumference of one end of the rotating shaft (6). A pull rod (8) is rotatably fitted on one end of the support rod (7). An annular plate (9) is fixed on the upper end of the multiple pull rods (8). An elastic ball is installed between the pull rod (8) and the upper end of the inner shell (2). A hydraulic cylinder (3) is fixed in the middle of the upper part of the outer shell (1). A push rod (4) is fixed at the lower end of the hydraulic cylinder (3). The lower end of the push rod (4) is rotatably engaged with the middle of the upper end of the inner shell (2). An electronic detonator body (10) is installed inside the inner shell (2).

2. The electronic detonator for blasting in open-pit sandstone and coal mines according to claim 1, characterized in that, The inner wall of the outer shell (1) has a threaded groove on its periphery, and the periphery of the inner shell (2) is threadedly engaged with the threaded groove.

3. The electronic detonator for blasting in open-pit sandstone and coal mines according to claim 1, characterized in that, Multiple triangular arc plates (5) are closed to form a cone-shaped structure.

4. The electronic detonator for blasting in open-pit sandstone and coal mines according to claim 1, characterized in that, One end of the support rod (7) is fixed with a movable rod, and one end of the movable rod is rotatably engaged with the lower end of the pull rod (8).

5. The electronic detonator for blasting in open-pit sandstone and coal mines according to claim 1, characterized in that, The pull rod (8) is slidably fitted in the middle of the upper end of the outer shell (1) and the inner shell (2), and the annular plate (9) is located above the outer shell (1).

6. The electronic detonator for blasting in open-pit sandstone and coal mines according to claim 1, characterized in that, The elastic ball includes multiple balls (11) elastically fixed to one side of the pull rod (8) and a groove (12) opened in the inner wall of the upper middle part of the inner shell (2), the groove (12) corresponding to the balls (11).

7. The electronic detonator for blasting in open-pit sandstone and coal mines according to claim 1, characterized in that, The hydraulic cylinder (3) is located in the middle of the annular plate (9), and the lower end of the electronic detonator body (10) corresponds to multiple triangular arc plates (5).

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