Detonating cord connecting device

Abstract

The utility model belongs to the technical field of blasting engineering, and particularly relates to a detonating cord connecting device which comprises a supporting cylinder and a plurality of clamping plates, the interior of the supporting cylinder is hollow, the clamping plates are arranged in an arc shape, the clamping plates are arranged on the two sides of the supporting cylinder respectively, and the clamping plates on the same side can define a circular ring respectively. An opening is formed in the supporting cylinder, a plurality of sliding grooves are formed in the supporting cylinder, the sliding grooves penetrate through the two sides of the supporting cylinder, sliding rods are arranged at the arc-shaped ends of the clamping plates, the opposite clamping plates on the two sides of the supporting cylinder are connected through the sliding rods, and the sliding rods are arranged in the sliding grooves and can slide in the circle center direction of the supporting cylinder. The detonating cord is directly inserted into the connecting device, the positions of the clamping plates are adjusted to tighten the clamping plates towards the circle center direction, the detonating cord at the two ends is clamped, the labor intensity of workers is relieved, and the connecting quality is improved.

Description

Technical Field

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

[0002] Detonating cord is a stable and reliable explosive transmission equipment, which is widely used in tunnel and open-air blasting. At the work site, workers need to connect several detonating cords, usually by direct tying, knotting or wrapping with tape. Since the detonating cord connection has length and angle requirements, the above methods are directly related to the workers' carefulness, patience and skills, and they must be wrapped well and tightly. However, the working environment at the construction site itself is poor, the workload is large, the operation is complicated and cumbersome, etc. Therefore, the explosion transmission is often interrupted and the explosives refuse to explode due to the unqualified lap quality of the detonating cord during the blasting process, which creates great safety hazards and secondary work burdens. Utility Model Content

[0003] In view of the technical problems existing in the background technology, the purpose of the utility model is to provide a detonating cord connecting device, which is used in the scenario where detonating cord is used to transmit explosions during tunnel blasting or open-air blasting operations. Through this device, the binding method of the detonating cord is simplified and the strength of the connection is increased.

[0004] In order to achieve the above purpose, the technical solution provided by the utility model is:

[0005] A detonating cord connecting device, the connecting device includes a supporting tube and a plurality of splints, the interior of the supporting tube is hollow, the splints are arranged in an arc shape, the plurality of splints are respectively arranged on both sides of the supporting tube, and the plurality of splints on the same side can be respectively arranged to form a circular ring shape, an opening is provided on the supporting tube, a plurality of slide grooves are provided on the supporting tube, the slide grooves pass through both sides of the supporting tube, a sliding rod is provided on the arc-shaped end of the splint, the sliding rod connects the splints opposite to each other on both sides of the supporting tube, the sliding rod is arranged in the slide groove, and can slide along the center direction of the supporting tube.

[0006] Preferably, the slide groove passes through the opening and extends toward the center of the support cylinder.

[0007] Preferably, a locking assembly is provided at the opening, and the locking assembly comprises a supporting block, the supporting block is slidably provided in the opening, and the bottom of the supporting block is connected to the sliding rod.

[0008] Preferably, a card slot I and a card slot II are respectively provided on both sides of the support block, and the card slot I and the card slot II are aligned with the slide groove.

[0009] Preferably, the support block is further provided with a connecting groove I and a connecting groove II, wherein the connecting groove I penetrates the support block and is connected with the clamping groove I, and the connecting groove II penetrates the support block and is connected with the clamping groove II.

[0010] Preferably, a limiting rod I is arranged in the slot I, and a spring I is arranged inside the slot I, one end of the spring I is connected to the limiting rod I, a limiting rod II is arranged in the slot II, and a spring II is arranged inside the slot II, one end of the spring II is connected to the limiting rod II, and the limiting rod I and the limiting rod II can extend into the slide slot.

[0011] Preferably, a driving block I is provided on the limit rod I, and the driving block I passes through the connecting groove I and can slide along the direction of the connecting groove I. A driving block II is provided on the limit rod II, and the driving block II passes through the connecting groove II and can slide along the direction of the connecting groove II.

[0012] The utility model has the following advantages and beneficial effects:

[0013] 1. In the utility model, the detonating cord is directly inserted into the connecting device, and the positions of the clamping plates are adjusted so that the plurality of clamping plates are tightened toward the center of the circle to clamp the detonating cords at both ends, thereby reducing the labor intensity of the workers and increasing the quality of the connection.

[0014] 2. In the utility model, when the clamping plate clamps the detonating cord, the limiting rods I and II extend into the slide groove to fix the position of the clamping plate, which not only enables the clamping plate to clamp the detonating cord more firmly, but also prevents the connection device and the detonating cord from separating, thereby further enhancing the quality of the connection.

[0015] 3. The utility model has a simple structure and is easy to operate, which reduces the difficulty of connecting the detonating cord and increases the connection quality of the detonating cord. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 A schematic diagram of a tightened state of a detonating cord connecting device provided by the utility model;

[0017] Figure 2 A schematic diagram of the support tube structure of a detonating cord connecting device provided by the utility model;

[0018] Figure 3 A schematic diagram of the connection between a clamping plate and a sliding rod of a detonating cord connecting device provided by the utility model;

[0019] Figure 4 A schematic diagram of the support block structure of a detonating cord connecting device provided by the utility model;

[0020] Figure 5 This is an internal cross-sectional view of a support block of a detonating cord connecting device provided by the utility model;

[0021] Figure 6 A schematic diagram of the connection between a support block and a limit rod of a detonating cord connection device provided by the utility model;

[0022] Figure 7 A cross-sectional view of the connection between a support block and a limit rod of a detonating cord connection device provided by the utility model;

[0023] Figure 8 A schematic diagram of the structure of a detonating cord connecting device provided by the utility model in a relaxed state;

[0024] Icons: 1-detonating cord, 2-support tube, 21-opening, 22-slide groove, 3-clamp, 4-slide rod, 5-support block, 51-slot Ⅰ, 52-connecting slot Ⅰ, 53-slot Ⅱ, 54-connecting slot Ⅱ, 6-limit rod Ⅰ, 61-drive block Ⅰ, 62-limit rod Ⅱ, 63-drive block Ⅱ, 7-spring Ⅰ, 71-spring Ⅱ. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments.

[0026] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] Example

[0028] like Figure 1 , 2As shown in Figures 3 and 8, a detonating cord connecting device comprises a supporting tube 2 and a plurality of splints 3. The interior of the supporting tube 2 is hollow. A plurality of slide grooves 22 are arranged on the supporting tube 2. The slide grooves 22 pass through both sides of the supporting tube 2. An annular opening 21 is arranged on the supporting tube 2. The slide grooves 22 pass through the opening 21 and extend toward the center of the supporting tube 2. The splints 3 are arranged in an arc shape. The plurality of splints 3 are respectively arranged on both sides of the supporting tube 2, and the plurality of splints 3 on the same side can be respectively arranged into a circular ring shape. A sliding rod 4 is arranged on the arc end of the splint 3. The sliding rod 4 connects the splints 3 opposite to each other on both sides of the supporting tube 2. The sliding rod 4 is arranged in the slide groove 22 and can slide along the center of the supporting tube 2. When the bottom of all the slide bars 4 and the bottom of the slide groove 22 are in close contact, the clamps 3 are in contact and clamped with each other, and the diameter of the circular ring surrounded by the clamps 3 is smaller than the inner diameter of the support tube 2. The detonating cords 1 at both ends are inserted into both sides of the support tube 2 so that they are in contact inside the support tube 2. The sliding slide bars 4 drive the clamps 3 on both sides to clamp the detonating cords 1 to prevent them from detaching from the detonating cord 1.

[0029] like Figure 1-8 As shown, a locking assembly is provided at the opening 21, and the locking assembly includes a support block 5. The support block 5 is slidably arranged in the opening 21, and the bottom of the support block 5 is fixedly connected to the slide bar 4. Specifically: a notch is provided at the middle upper end of the slide bar 4, and the support block 5 is clamped in the notch of the slide bar 4. The support block 5 slides in the opening 21, driving the slide bar 4 to slide in the slide groove 22. A clamping groove Ⅰ51 and a clamping groove Ⅱ53 are respectively provided on both sides of the support block 5. The clamping groove Ⅰ51 and the clamping groove Ⅱ53 are aligned with the slide groove 22. A connecting groove Ⅰ52 and a connecting groove Ⅱ54 are also provided on the support block 5. The connecting groove Ⅰ52 penetrates the support block 5 and is connected to the clamping groove Ⅰ51. The connecting groove Ⅱ54 penetrates the support block 5 and is connected to the clamping groove Ⅱ53. A limiting rod Ⅰ6 is provided in the clamping groove Ⅰ51, and a spring Ⅰ7 is provided inside the clamping groove Ⅰ51. One end of the spring Ⅰ7 is connected to the limiting rod Ⅰ6. The clamping groove Ⅱ5 3 is provided with a limit rod II 62, and a spring II 71 is provided inside the card slot II 53, one end of the spring II 71 is connected to the limit rod II 62, the limit rod I 6 and the limit rod II 62 can extend into the slide slot 22, the limit rod I 6 is provided with a driving block I 61, the driving block I 61 passes through the connecting slot I 52, and can slide along the direction of the connecting slot I 52, the limit rod II 62 is provided with a driving block II 63, the driving block II 63 passes through the connecting slot II 54, and can slide along the direction of the connecting slot II 54, and the connecting slot I 52 and the connecting slot II 54 are arranged at the upper position of the support block 5.

[0030] like Figure 1-8As shown, when the support block 5 slides in the opening 21, the connecting grooves (connecting grooves Ⅰ52 and connecting grooves Ⅱ54) and the slide groove 22 are not yet completely connected and connected. At this time, the limit rods Ⅰ6 and Ⅱ62 are inside the support block 5, and the springs Ⅰ7 and Ⅱ71 are compressed. When the lower end of the support block 5 is tightly attached to the support tube 2 (the clamping plate 3 is arranged to form a circular ring), the connecting grooves Ⅰ52, Ⅱ54 and the slide groove 22 are connected and connected. At this time, the springs Ⅰ7 and Ⅱ71 are not reset without force, and the limit rod Ⅰ6 is pushed into the connecting groove. Ⅰ52, push the limit rod Ⅱ62 into the connecting groove Ⅱ54, the limit rod Ⅰ6 and the limit rod Ⅱ62 close the slide groove 22, at this time the slide rod 4 cannot slide in the slide groove 22, and a plurality of splints 3 are continuously arranged in a circular ring shape; when the splints 3 need to be separated, slide the driving block Ⅰ61 and the driving block Ⅱ63, so that the driving block Ⅰ61 drives the limit rod Ⅰ6 to slide, compress the spring Ⅰ7, so that the driving block Ⅱ63 drives the limit rod Ⅱ62 to slide, compress the spring Ⅱ71, and at this time the slide rod 4 can slide in the slide groove 22 again.

[0031] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various changes and modifications. 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 connecting device, characterized in that: The connecting device includes a support tube and a plurality of splints. The interior of the support tube is hollow, and the splints are arranged in an arc shape. The plurality of splints are respectively arranged on both sides of the support tube, and the plurality of splints on the same side can be respectively arranged to form a circular ring shape. An opening is provided on the support tube, and a plurality of slide grooves are provided on the support tube. The slide grooves pass through both sides of the support tube. A sliding rod is provided on the arc-shaped end of the splint, and the sliding rod connects the opposite splints on both sides of the support tube. The sliding rod is arranged in the slide groove and can slide along the center direction of the support tube.

2. A detonating cord connecting device according to claim 1, characterized in that: The slide groove passes through the opening and extends toward the center of the supporting cylinder.

3. A detonating cord connecting device according to claim 1, characterized in that: A locking assembly is arranged at the opening, and the locking assembly comprises a supporting block, and the supporting block is slidably arranged in the opening, and the bottom of the supporting block is connected to the sliding rod.

4. A detonating cord connecting device according to claim 3, characterized in that: A card slot I and a card slot II are respectively arranged on both sides of the support block, and the card slot I and the card slot II are arranged aligned with the slide slot.

5. A detonating cord connecting device according to claim 4, characterized in that: The support block is also provided with a connecting groove I and a connecting groove II. The connecting groove I penetrates the support block and is connected with the clamping groove I, and the connecting groove II penetrates the support block and is connected with the clamping groove II.

6. A detonating cord connecting device according to claim 5, characterized in that: A limiting rod I is arranged in the slot I, and a spring I is arranged inside the slot I, one end of the spring I is connected to the limiting rod I, a limiting rod II is arranged in the slot II, and a spring II is arranged inside the slot II, one end of the spring II is connected to the limiting rod II, and the limiting rod I and the limiting rod II can extend into the slide slot.

7. A detonating cord connecting device according to claim 6, characterized in that: The limit rod I is provided with a driving block I, the driving block I passes through the connecting groove I and can slide along the direction of the connecting groove I, and the limit rod II is provided with a driving block II, the driving block II passes through the connecting groove II and can slide along the direction of the connecting groove II.

Images