Electronic detonator for tunnel blasting

Abstract

The utility model discloses an electronic detonator for tunnel blasting, which comprises a first protection box, four sides of the first protection box are provided with jacks, the outer side of the first protection box is fixedly connected with a plurality of rubber hoses at the jacks, the first protection box is internally provided with a first cavity, and the first cavity is internally provided with a second cavity. Flitch plates are fixedly connected to the positions, under the rubber hoses, of the four sides of the first protection box, and the sides, away from the first protection box, of the flitch plates are fixedly connected with one ends of spring columns. The other end, away from the flitch plate, of the spring column is fixedly connected with the inner side of the second protection box, and the first protection box is movably installed in the second protection box. The electronic chip in the detonator is fixedly installed and placed in the first protection box, anti-shock protection can be effectively carried out on the electronic chip and peripheral circuits, and the jacks formed in the four sides of the first protection box not only can be used for circuit connection and installation of the electronic chip, but also can provide a certain heat dissipation effect for the electronic chip.

Description

Technical Field

[0001] The utility model relates to the technical field of electronic detonators, in particular to an electronic detonator for tunnel blasting. Background Art

[0002] Tunnel blasting is different from open-pit mine blasting. Tunnel blasting has strict requirements on the seismic performance of detonators. Multiple detonators need to be arranged in close proximity on the small end face, and each detonator does not affect each other after the explosion. The chip in the detonator needs to be designed separately. The harsh conditions such as explosion shock waves and explosion pressure have a destructive effect on electronic chips. To ensure that the chip does not refuse to explode after receiving the shock wave, the chip and the circuits around the chip need to be seismically protected.

[0003] Therefore, we propose an electronic detonator for tunnel blasting. Utility Model Content

[0004] The main purpose of the utility model is to provide an electronic detonator for tunnel blasting. By fixing the electronic chip in the detonator in a first protective box, the electronic chip and the peripheral circuits can be effectively protected from earthquakes. The jacks opened on the four sides of the first protective box can not only be used for circuit connection and installation of the electronic chip, but also can provide a certain heat dissipation effect for the electronic chip, which can effectively solve the problems in the background technology.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] An electronic detonator for tunnel blasting, comprising a first protective box, wherein four sides of the first protective box are provided with plug holes, the plug holes are provided at multiple locations, and the outer side of the first protective box is fixedly connected to the plug holes with rubber hoses, the rubber hoses are provided at multiple locations;

[0007] A first cavity is provided inside the first protective box, and four sides of the first protective box are fixedly connected with a patch plate directly below the rubber hose. The side of the patch plate away from the first protective box is fixedly connected to one end of the spring column.

[0008] Furthermore, the other end of the spring column away from the sticking plate is fixedly connected to the inner side of the second protective box, and the first protective box is movably installed inside the second protective box.

[0009] Furthermore, a top cover is buckled on the top of the second protective box, and vibration-proof pearl cotton is fixedly connected to the inner top of the top cover, and a second cavity is provided inside the vibration-proof pearl cotton.

[0010] Furthermore, a cushion block is provided on the inner side of the first protective box, and a groove is provided on the cushion block at the insertion hole, and the groove is provided at multiple locations.

[0011] Furthermore, a ball bearing is provided at the bottom of the first protective box, and the ball bearing is provided at multiple locations. A sponge ring is pasted on the inside of the socket, and the sponge ring is provided at multiple locations.

[0012] Compared with the prior art, the utility model has the following beneficial effects: by fixing the electronic chip in the detonator in the first protective box, the electronic chip and the peripheral circuits can be effectively protected against earthquakes, and the jacks opened on the four sides of the first protective box can not only be used for circuit connection and installation of the electronic chip, but also can provide a certain heat dissipation effect for the electronic chip. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The utility model is a schematic diagram of the three-dimensional structure of a first protection box of an electronic detonator for tunnel blasting.

[0014] Figure 2 The utility model is a cross-sectional view of the second protection box of an electronic detonator for tunnel blasting.

[0015] Figure 3 The utility model is a schematic diagram of the top cover structure of an electronic detonator for tunnel blasting.

[0016] In the figure: 1. spring column; 2. plate; 3. first protective box; 4. first cavity; 5. jack; 6. pad; 7. sponge ring; 8. groove; 9. rubber hose; 10. top cover; 11. vibration-proof pearl cotton; 12. ball; 13. second protective box; 14. second cavity. DETAILED DESCRIPTION

[0017] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0018] like Figure 1 , Figure 2 , Figure 3 As shown, an electronic detonator for tunnel blasting includes a first protective box 3, four sides of the first protective box 3 are provided with jacks 5, the jacks 5 are provided at multiple locations, the outer side of the first protective box 3 is located at the jacks 5 and is fixedly connected with a rubber hose 9, the rubber hose 9 is provided at multiple locations, and one end of the rubber hose 9 away from the first protective box 3 can pass through a second protective box 13 and be provided to the outside, so as to facilitate the connection line of the chip to be connected to external equipment;

[0019] A first cavity 4 is provided inside the first protective box 3, and four sides of the first protective box 3 are fixedly connected with a plate 2 located directly below the rubber hose 9, and a side of the plate 2 away from the first protective box 3 is fixedly connected to one end of the spring column 1;

[0020] The other end of the spring column 1 away from the plate 2 is fixedly connected to the inner side of the second protective box 13, and the first protective box 3 is movably installed inside the second protective box 13; the top of the second protective box 13 is buckled with a top cover 10, and the top cover 10 can be fixed to the second protective box 13 by bolts, and the inner top of the top cover 10 is fixedly connected with a vibration-proof pearl cotton 11, and a second cavity 14 is provided inside the vibration-proof pearl cotton 11;

[0021] A pad 6 is provided on the inner side of the first protective box 3, and a groove 8 is provided on the pad 6 at the socket 5, and the groove 8 is provided at multiple locations; a ball 12 is provided on the bottom of the first protective box 3, and the ball 12 is provided at multiple locations, and a sponge ring 7 is pasted on the inside of the socket 5, and the sponge ring 7 is provided at multiple locations. The sockets 5 that are not used at multiple locations can provide heat dissipation effect for the chip, and the sponge ring 7 also provides protection effect for the circuit.

[0022] It should be noted that the utility model is an electronic detonator for tunnel blasting. First, the electronic chip is fixedly installed in the first cavity 4 of the first protective box 3, and the circuit required to be connected to the electronic chip is placed on the groove 8 of the pad 6, and then the circuit is passed through the jack 5 to pass through the rubber hose 9, which plays a certain protective role on the circuit. Finally, the top end of the second protective box 13 is covered with a top cover 10, and the upper part of the first protective box 3 is placed in the second cavity 14 of the vibration-proof pearl cotton 11. In this way, when the chip is subjected to a shock wave, since the bottom of the first protective box 3 is provided with a ball 12, the shock wave will vibrate the first protective box 3 to swing back and forth, and the swinging first protective box 3 will reduce its swinging frequency through the outer spring column 1, thereby reducing the vibration caused by the shock wave.

[0023] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. An electronic detonator for tunnel blasting, comprising a first protective box (3), characterized in that: The first protective box (3) is provided with plug holes (5) on four sides, and the plug holes (5) are provided at multiple locations. The outer side of the first protective box (3) is fixedly connected to the plug holes (5), and the rubber hose (9) is provided at multiple locations. A first cavity (4) is provided inside the first protective box (3), and four sides of the first protective box (3) are fixedly connected to a plate (2) located directly below the rubber hose (9), and a side of the plate (2) away from the first protective box (3) is fixedly connected to one end of the spring column (1).

2. The electronic detonator for tunnel blasting according to claim 1, characterized in that: The other end of the spring column (1) away from the sticking plate (2) is fixedly connected to the inner side of the second protection box (13), and the first protection box (3) is movably installed inside the second protection box (13).

3. The electronic detonator for tunnel blasting according to claim 2, characterized in that: The top end of the second protective box (13) is buckled with a top cover (10), the inner top of the top cover (10) is fixedly connected with a vibration-proof pearl cotton (11), and a second cavity (14) is provided inside the vibration-proof pearl cotton (11).

4. The electronic detonator for tunnel blasting according to claim 1, characterized in that: A cushion block (6) is provided on the inner side of the first protective box (3), and a groove (8) is provided on the cushion block (6) at the insertion hole (5), and the groove (8) is provided at a plurality of locations.

5. The electronic detonator for tunnel blasting according to claim 1, characterized in that: A ball (12) is provided at the bottom of the first protective box (3), and the ball (12) is provided at multiple locations. A sponge ring (7) is pasted inside the insertion hole (5), and the sponge ring (7) is provided at multiple locations.

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