Quick connecting device for detonating cord

Abstract

The utility model provides a quick connecting device for a detonating cord, which relates to the technical field of blasting and comprises a protective shell which is of a 180-degree openable structure, so that one side of the protective shell can be opened, and the opposite side of the protective shell can rotate; the explosion-proof layer is arranged in the protective shell in a filling mode, the explosion-proof layer is made of fiber silica gel elastic composite materials, the middle of the explosion-proof layer is divided into two explosion-proof blocks along the opening and closing line of the protective shell, longitudinally-extending clamping grooves are formed in the sides, close to each other, of the two explosion-proof blocks in a concave mode, and the two clamping grooves are communicated to form a longitudinally-extending through groove after the protective shell is combined. Waterproof rubber rings are arranged on the inner walls of the two ends of the through groove, and anti-skid lines are arranged on the inner side walls of the clamping grooves in a protruding mode. The fixing structure is arranged on the openable side of the protective shell. The structure is simple and quick to operate, the connection efficiency can be greatly improved, the connection stability can be improved by arranging the anti-skid lines, the waterproof rubber rings are arranged at the two ends of the through groove, so that the detonating cord and the connecting device are more airtight and can effectively resist water, and the detonating cord is prevented from being wetted by water and miss-fire explosion is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of blasting, in particular to a detonating cord quick connection device. Background Art

[0002] At present, the commonly used method for connecting detonating cords is the tower connection method, which uses waterproof tape to wrap and tie the two sections of detonating cord together. However, this connection method has two disadvantages: 1. The use of waterproof tape to wrap and tie is time-consuming and labor-intensive, affecting work efficiency. Manual binding has problems with the awareness of operators and it is difficult to ensure the quality of the detonating cord connection; 2. The two sections of detonating cord are connected together, and its intensity is twice that of the normal detonating cord transmission. The shock wave during the detonation transmission process at the connection of the detonating cord can easily blow up flying rocks and break the subsequent transmission network, causing explosion refusal and blind shots, causing safety accidents. In order to avoid the occurrence of detonating cord connection failures, on-site operators usually use multi-layer winding and tying to connect the detonating cord, which is more inefficient and cannot guarantee quality. Utility Model Content

[0003] In view of this, an embodiment of the utility model provides a detonating cord quick connection device, aiming to solve the problems of low connection efficiency and low explosion transmission stability of the existing detonating cord.

[0004] The embodiment of the utility model provides a detonating cord quick connection device, comprising:

[0005] A protective shell, wherein the protective shell is a 180° openable and closable structure, so that one side of the protective shell can be opened and the opposite side can be rotated;

[0006] An explosion-proof layer is filled in the protective shell, the explosion-proof layer is made of fiber silicone elastic composite material, the middle part of the explosion-proof layer is divided into two explosion-proof blocks along the opening and closing line of the protective shell, and the two explosion-proof blocks are concavely provided with a clamping groove extending longitudinally on one side thereof, and the two clamping grooves are connected to form a through groove extending longitudinally after the protective shell is combined, and the inner walls of both ends of the through groove are provided with waterproof rubber rings, and the inner side wall of the clamping groove is convexly provided with anti-slip patterns; and,

[0007] The fixing structure is arranged on the openable side of the protective shell and is used to fix the protective shell.

[0008] Furthermore, the fixing structure includes at least three locking structures arranged at intervals in the longitudinal direction.

[0009] Furthermore, the protective shell and the locking structure are integrally formed, and the materials used to make the protective shell and the locking structure do not contain polyvinyl chloride.

[0010] Furthermore, the protective shell is a rectangular parallelepiped, and the length of the protective shell is 220mm-260mm, and the width and height of the protective shell are 32mm-38mm.

[0011] Furthermore, the clamping groove includes a plurality of straight segments and a plurality of bent segments along the longitudinal direction, and the bent segments and the straight segments are connected in sequence.

[0012] Furthermore, the bending directions of two adjacent bending sections are opposite.

[0013] Furthermore, the bending section is arc-shaped.

[0014] Furthermore, the clamping groove is S-shaped.

[0015] The beneficial effects of the technical solution provided by the embodiment of the utility model are as follows: in the detonating cord quick connection device of the utility model, when in use, the protective shell is opened 180°, two sections of detonating cord are placed in two clamping grooves, the protective shell is buckled, and the protective shell is fixed by the fixing structure to complete the connection. The operation is simple and fast, and the connection efficiency can be greatly improved. In addition, by setting anti-slip patterns on the inner wall of the clamping groove, it is also helpful to improve the connection stability. The anti-slip patterns are set in a "human" shape, which can make the detonating cord and the connection device tighter and effectively prevent slipping, and have sufficient pressure and friction at the overlap. By setting waterproof rubber rings at both ends of the through groove, the detonating cord and the connection device are more airtight and effectively waterproof, preventing the detonating cord from being wetted by water and causing explosion refusal. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic structural diagram of a 180° unfolded state of an embodiment of a detonating cord quick connection device provided by the utility model;

[0017] Figure 2 It is a schematic diagram of the structure of the quick-connect device of the detonating cord unfolded 90 degrees;

[0018] Figure 3 It is a schematic diagram of the end face of the detonating cord quick-connect device after it is closed.

[0019] In the figure: 100, detonating cord quick connection device; 1, protective shell; 2, explosion-proof layer; 21, explosion-proof block; 3, through groove; 31, clamping groove; 4, waterproof rubber ring; 5, anti-slip pattern; 6, locking structure. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the utility model clearer, the implementation mode of the utility model will be further described below in conjunction with the accompanying drawings.

[0021] Please refer to Figure 1-Figure 3As shown, a detonating cord quick connection device 100 provided by an embodiment of the utility model comprises a protective shell 1, an explosion-proof layer 2 and a fixing structure. The protective shell 1 is a 180° openable and closable structure, so that one side of the protective shell 1 can be opened and the opposite side can be rotated; the explosion-proof layer 2 is filled and arranged in the protective shell 1, and the explosion-proof layer 2 is made of a flame-resistant fiber silicone elastic composite material. The middle part of the explosion-proof layer 2 is divided into two explosion-proof blocks 21 along the opening and closing line of the protective shell 1, and the two sides of the two explosion-proof blocks 21 are concavely provided with a longitudinally extending clamping groove 31. The two clamping grooves 31 are connected to form a longitudinally extending through groove 3 after the protective shell 1 is merged. The inner walls of both ends of the through groove 3 are provided with waterproof rubber rings 4, and the inner wall of the clamping groove 31 is convexly provided with anti-slip grooves 5; the fixing structure is arranged on the openable side of the protective shell 1, and is used to fix the protective shell 1.

[0022] like Figure 1 As shown, when in use, the protective shell 1 is opened 180° to the unfolded state, the two sections of detonating cord are placed in the two clamping grooves 31, the protective shell 1 is buckled, and the protective shell 1 is fixed by the fixing structure to complete the connection. The operation is simple and fast, and the connection efficiency can be greatly improved. In addition, the anti-slip pattern 5 is arranged on the inner wall of the clamping groove 31, which also helps to improve the connection stability.

[0023] Specifically, the anti-slip pattern 5 in this embodiment is arranged in a "human" shape, which can make the detonating cord and the connecting device closer and effectively prevent slipping, and has sufficient pressure and friction at the overlap.

[0024] By arranging waterproof rubber rings 4 at both ends of the through groove 3, the detonating cord and the connecting device are more airtight and effectively waterproof, thereby preventing the detonating cord from being wetted by water and causing explosion refusal.

[0025] Specifically, the fixing structure includes at least three locking structures 6 arranged at intervals in the longitudinal direction. By arranging at least three locking structures 6 at intervals, it is ensured that the longitudinal protective shell 1 is firmly fixed, the clamping force is uniformly applied to the detonating cord, and it is also ensured that the protective shell 1 has sufficient binding force after closing. The locking structure 6 is a prior art, and the specific structure is not described in detail.

[0026] Specifically, the protective shell 1 and the locking structure 6 are integrally formed, and the materials used to make the protective shell 1 and the locking structure 6 do not contain polyvinyl chloride. Specifically, the thickness of the protective shell 1 is 3 mm.

[0027] In other embodiments, the fixing structure may also adopt other structures, such as a magnetic structure, by respectively arranging magnetic structures on both sides of the openable side of the protective shell 1, and magnetically fixing them when they are close to each other; or fixing them by interference fit between a wedge-shaped protrusion and a wedge-shaped slot.

[0028] Specifically, the protective shell 1 is a rectangular parallelepiped, and the length of the protective shell 1 is 220mm-260mm, and the width and height of the protective shell 1 are 32mm-38mm. Since the overlapping length of the detonating cord must be greater than 200mm, the length of the protective shell 1 must be at least longer than the overlapping length of the detonating cord. Specifically, the present embodiment can adopt a length of 250mm, a width and a height of 35mm, so as to ensure a firm overlap.

[0029] Furthermore, the clamping groove 31 includes a plurality of straight segments and a plurality of bent segments along the longitudinal direction, and the bent segments are sequentially connected to the straight segments. By bending the clamping groove 31 along the longitudinal direction, and connecting the plurality of bent segments and the straight segments in sequence, the detonating cord is bent along the clamping groove 31, thereby preventing the detonating cord from being pulled out. Compared with the linear clamping groove 31, the curved edge clamping groove 31 can clamp the detonating cord more firmly.

[0030] Specifically, the bending directions of the two adjacent bending sections are opposite, and the bending sections are arc-shaped. The bending directions of the two adjacent bending sections are opposite, and the protective shell 1 of the same length can increase the length of the clamping groove 31 as much as possible, and can increase the number of bending times of the detonating cord, and further clamp the detonating cord. The arc-shaped bending section can protect the detonating cord, so that the bending part has a better transition and will not break the detonating cord. Specifically, in this embodiment, the clamping groove 31 is S-shaped (not shown in the figure of this embodiment).

[0031] In this document, the directional words such as front, back, top, and bottom are defined by the positions of the components in the drawings and the positions of the components relative to each other, and are only for the sake of clarity and convenience in expressing the technical solution. It should be understood that the use of the directional words should not limit the scope of protection claimed in this application.

[0032] In the absence of conflict, the above embodiments and features in the embodiments may be combined with each other.

[0033] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A detonating cord quick connection device, characterized in that: include: A protective shell, wherein the protective shell is a 180° openable and closable structure, so that one side of the protective shell can be opened and the opposite side can be rotated; An explosion-proof layer is filled in the protective shell. The explosion-proof layer is made of fiber silicone elastic composite material. The middle part of the explosion-proof layer is divided into two explosion-proof blocks along the opening and closing line of the protective shell. A clamping groove extending longitudinally is concavely provided on one side of the two explosion-proof blocks. The two clamping grooves are connected to form a through groove extending longitudinally after the protective shell is combined. Waterproof rubber rings are provided on the inner walls at both ends of the through groove. The inner side wall of the clamping groove is convexly provided with anti-slip patterns. as well as, The fixing structure is arranged on the openable side of the protective shell and is used to fix the protective shell.

2. The detonating cord quick connection device according to claim 1, characterized in that: The fixing structure comprises at least three locking structures which are arranged at intervals in the longitudinal direction.

3. The detonating cord quick connection device according to claim 2, characterized in that: The protective shell and the locking structure are integrally formed.

4. The detonating cord quick connection device according to claim 1, characterized in that: The protective shell is a rectangular parallelepiped, and the length of the protective shell is 220mm-260mm, and the width and height of the protective shell are 32mm-38mm.

5. The detonating cord quick connection device according to claim 1, characterized in that: The clamping groove includes a plurality of straight segments and a plurality of bending segments along the longitudinal direction, and the bending segments and the straight segments are connected in sequence.

6. The detonating cord quick connection device according to claim 5, characterized in that: The bending directions of two adjacent bending sections are opposite.

7. The detonating cord quick-connect device according to claim 5, characterized in that: The bending section is arc-shaped.

8. The detonating cord quick-connect device according to claim 7, characterized in that: The clamping groove is S-shaped.

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