Simple detonating cord connecting device

Abstract

The utility model relates to the technical field of detonating cord connection, in particular to a simple detonating cord connection device which comprises a connection frame. The connecting mechanism comprises sliding frames connected to the two sides of the inner wall of the connecting frame in a sliding mode, a rubber sleeve is fixedly connected to one side of each sliding frame, the surface of each rubber sleeve is in the shape of a half circle, a plurality of springs are fixedly connected to the surface of each rubber sleeve, and the other ends of the springs are fixedly connected to the inner wall of the connecting frame; according to the device, through the spring, the sliding frame and the rubber sleeve with the one-half-circle-shaped surface, abutting clamping of the joint of the two detonating cords is achieved, locking of the sliding frame and the rubber sleeve is achieved through the friction block, and compared with an existing detonating cord which is limited in abutting area, the detonating cord is not prone to falling off. According to the mode, the half-circle-shaped rubber sleeve abuts against the surface of the detonating cord, the clamping area of the detonating cord is increased, and then it is guaranteed that the two detonating cords are stably connected.

Description

TECHNICAL FIELD

[0001] The utility model relates to detonating cord connection technical field, especially a detonating cord connection simple device. BACKGROUND

[0002] The detonating cord is a kind of cord-like pyrotechnics for transmitting detonation wave, used to simultaneously detonate multiple charges, when the detonating cord is excited, it will propagate along the cord body with stable detonation wave, and then detonate explosive, and is widely applied in engineering blasting, military blasting and other fields.In the mining blasting, the detonating cord connection simple device is used to connect multiple detonating cords, so that it can reach every corner of the blasting area, thereby realizing simultaneous blasting of large area.

[0003] Through the first barb structure, the second barb structure and the bolt structure located on both sides of the buckle seat, the detonating cord inside the buckle seat is abutted and limited, so that stable and reliable detonating cord connection is realized.

[0004] In the above application, because the surface of the detonating cord is usually circular, the contact area of the first barb structure, the second barb structure and the bolt structure with the detonating cord is limited, thereby affecting the stable connection of the two detonating cords.

[0005] Therefore, a detonating cord connection simple device is proposed to solve the above problems. UTILITY MODEL CONTENTS

[0006] The utility model aims at providing a detonating cord connection simple device to solve the above problems, and improves the problem of difficult to ensure the stable connection of two detonating cords.

[0007] The utility model realizes the above-mentioned purposes through the following technical solutions, a detonating cord connection simple device, comprising: a connecting frame; a connecting mechanism, the connecting mechanism comprises a sliding frame slidingly connected to the inner wall of the connecting frame on both sides, one side of the sliding frame is fixedly connected with a rubber sleeve, the surface of the rubber sleeve is in the shape of one-half circle, a plurality of springs are fixedly connected to the surface of the rubber sleeve, the other end of the spring is fixedly connected to the inner wall of the connecting frame, a friction block is slidingly connected to the surface of the upper end of the sliding frame, and the surface of the friction block is clamped to the upper end of the inner wall of the connecting frame. Through the spring, the sliding frame and the rubber sleeve, the two detonating cord connection places are abutted and clamped, thereby realizing the preliminary stable connection of the two detonating cords, through the friction block, the sliding frame and the rubber sleeve are locked, thereby ensuring the stable connection of the two detonating cords.

[0008] Preferably, the connecting frame is internally provided with a limit frame distributed in a ring shape, and a pressure roller is rotatably connected to the inner wall of the limit frame.

[0009] Preferably, the inner wall of the connecting frame is fixedly connected with annularly distributed fixing blocks.

[0010] Preferably, the end of the fixing block is fixedly connected with an elastic sheet, and the other end of the elastic sheet is fixedly connected to the end of the limiting frame. Through the fixing block, the limiting frame, the elastic sheet and the pressing wheel, the guiding and limiting of the insertion of the detonating cord into the connecting frame are realized, the detonating cord is accurately inserted into the inner surfaces of the two rubber sleeves, and the abutting and clamping effect on the detonating cord is ensured.

[0011] Preferably, the end of the limiting frame is fixedly connected with a guide rod, and the surface of the guide rod is slidingly connected to the inner wall of the fixing block. Through the guide rod, the movement of the limiting frame is limited, and deviation of the limiting frame in movement is avoided.

[0012] Preferably, both sides of the connecting frame are fixedly connected with supporting blocks, and the top of the supporting block is recessed in an arc shape. Through the supporting block, the detonating cord is supported, the area of the detonating cord dragged on the ground is reduced, and the detonation effect of the detonating cord is ensured.

[0013] Preferably, the top of the connecting frame is fixedly connected with a blocking rod, and the inner wall of the friction block is slidingly connected to the surface of the blocking rod. Through the blocking rod, the upward movement range of the friction block is limited, and the friction block is prevented from falling off the connecting frame.

[0014] The beneficial effects of the utility model are:

[0015] 1. Through the spring, the sliding frame and the rubber sleeve with a one-half circular shape, the connection part of the two detonating cords is abutted and clamped, through the friction block, the sliding frame and the rubber sleeve are locked, compared with the limited abutting area of the detonating cord, the one-half circular rubber sleeve is abutted on the surface of the detonating cord, the clamping area of the detonating cord is increased, and the stable connection of the two detonating cords is ensured.

[0016] 2. Through the fixing block, the limiting frame, the elastic sheet and the pressing wheel, the guiding and limiting of the insertion of the detonating cord into the connecting frame are realized, the detonating cord is accurately inserted into the inner surfaces of the two rubber sleeves, and the abutting and clamping effect on the detonating cord is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a whole structure schematic view of the utility model;

[0018] Figure 2 It is a connecting frame sectional view of the utility model;

[0019] Figure 3 It is Figure 2 It is an enlarged view of A;

[0020] Figure 4 It is Figure 2Enlarged view of the middle B.

[0021] In the figure: 1, connecting frame; 2, connecting mechanism; 21, sliding frame; 22, rubber sleeve; 23, spring; 24, friction block; 25, limiting frame; 26, pressing wheel; 27, fixed block; 28, elastic sheet; 29, guide rod; 210, blocking rod; 211, supporting block. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0023] In the embodiment, as shown in the figure, a simple device for connecting detonating cord comprises a connecting frame 1 and a connecting mechanism 2. Figures 1-4 The connecting mechanism 2 comprises a sliding frame 21 slidably connected to the inner walls of the connecting frame 1 on both sides, a rubber sleeve 22 fixedly connected to one side of the sliding frame 21, a plurality of springs 23 fixedly connected to the surface of the rubber sleeve 22, the other ends of the springs 23 fixedly connected to the inner walls of the connecting frame 1, a friction block 24 slidably connected to the surface of the upper end of the sliding frame 21, and the surface of the friction block 24 clamped to the upper end of the inner walls of the connecting frame 1.

[0024] The detonating cord is usually composed of a core, an inner layer, a moisture-proof layer and an outer layer.

[0025] The core is usually composed of a high-energy explosive such as hexogen and tetryl, which has high energy and fast detonation speed, and can ensure stable and rapid propagation of the detonation wave.

[0026] The inner layer is wrapped outside the core, generally adopts cotton thread or hemp thread, and plays a role in fixing the core and preliminary protection.

[0027] The moisture-proof layer is usually made of asphalt or plastic, which can prevent water from entering the core, because water will affect the performance of the high-energy explosive, leading to unstable detonation or even refusal to detonate.

[0028] The outer layer is wound again by using cotton thread or hemp thread, further enhancing the strength and durability of the detonating cord, and protecting the internal structure from external physical damage.

[0029] Detonation speed: The detonation speed of the detonating cord is generally 6000-7000 m / s, and high detonation speed can ensure that the detonation wave is transmitted to each charging point in an instant, realizing almost simultaneous initiation.

[0030] When the detonating cords need to be connected, one of the detonating cords is inserted into one end of the open end of the connecting frame 1, and the other detonating cord is inserted into the other end of the open end of the connecting frame 1, so that the ends of the two detonating cords abut, at this time, the two carriages 21 are loosened, the elastic force of the spring 23 pushes the carriage 21 to move, the carriage 21 drives the rubber sleeve 22 to move, and the rubber sleeve 22 with a semicircular surface abuts at the connection of the two detonating cords, at this time, the friction block 24 is pushed downward and is sequentially inserted into the carriage 21 and the connecting frame 1, thereby stably connecting the two detonating cords, and multiple detonating cords are connected into a certain length in the above manner.

[0031] After the detonating cords are connected to a certain length, the blasting cap is inserted into the hole at the end of the detonating cord, and then the blasting cap is tightly fixed by adhesive tape, then the leg wire of the electric detonator is connected to the initiator, after confirming that all personnel have evacuated to a safe position, the electric current is input to the electric detonator through the initiator to cause explosion, so that the detonating cord explodes to blast the corresponding position of the mine.

[0032] As shown in Figure 4 , the connecting frame 1 is internally provided with a limiting frame 25 distributed in a ring shape, the inner wall of the limiting frame 25 is rotationally connected with a compression wheel 26, the inner wall of the connecting frame 1 is fixedly connected with a fixed block 27 distributed in a ring shape, the end of the fixed block 27 is fixedly connected with an elastic sheet 28, the other end of the elastic sheet 28 is fixedly connected to the end of the limiting frame 25, the end of the limiting frame 25 is fixedly connected with a guide rod 29, and the surface of the guide rod 29 is slidingly connected to the inner wall of the fixed block 27.

[0033] The detonating cord is inserted into the connecting frame 1, the elastic force of the elastic sheet 28 pushes the limiting frame 25 to move towards the direction close to the detonating cord, so that the compression wheel 26 rolls on the surface of the detonating cord, and the detonating cord is accurately inserted into the inner surface of the two rubber sleeves 22.

[0034] As shown in Figure 2 , both sides of the connecting frame 1 are fixedly connected with a support block 211, and the top of the support block 211 is recessed in an arc shape. The friction block 24, the support block 211 and the compression wheel 26 are all rubber components.

[0035] The support block 211 supports the detonating cord, reduces the area of the detonating cord dragged on the ground, thereby reducing the friction force between the detonating cord and the ground, reducing the risk of damage to the outer skin of the detonating cord, ensuring stable propagation of the detonation wave inside, and thereby ensuring the detonation effect.

[0036] As shown in Figure 4 , the top of the connecting frame 1 is fixedly connected with a blocking rod 210, and the inner wall of the friction block 24 is slidingly connected to the surface of the blocking rod 210.

[0037] The utility model discloses a when using, one of the detonating cord is inserted to the one end of the open mouth of connecting frame 1, and the detonating cord is inserted to the other end of the open mouth of connecting frame 1, make detonating cord top of support block 211, reduce the area of detonating cord dragging on the ground, and then reduced the friction of detonating cord and ground, reduce the risk of damage of detonating cord outer skin, guarantee the stable propagation of detonation wave in the inside, thereby guarantee the detonation effect, the elastic force of the shell 28 pushes the limit frame 25 and moves towards the direction of close detonating cord, make the pressure wheel 26 roll in the detonating cord surface, make detonating cord accurate insertion to the inner surface of two rubber sleeves 22, loosen two slide frames 21, and the elastic force of spring 23 pushes slide frame 21 and moves, make slide frame 21 drive rubber sleeve 22 and move and resist in the connection of two detonating cords, at this moment, push friction block 24 and move and insert into slide frame 21 and connecting frame 1 in proper order, and then the two detonating cords are stably connected.

[0038] Need to explain, the above explanation connecting frame 1, spring 23, shell 28, shell 28 etc. are all for the more mature device of prior art application, and the specific model can be selected according to actual needs, here do not repeat.

[0039] In addition, it should be understood that, although the present specification is described according to the embodiment, not every embodiment only contains one independent technical scheme, the description mode of the specification is only for the sake of clarity, the skilled person in the art should take the specification as a whole, and the technical scheme in each embodiment can be combined to form other embodiments that the skilled person can understand 。

Claims

1. A connecting device for detonating cord, characterized in that Include: The connecting frame (1) is connected with the connecting mechanism (2), and the connecting mechanism (2) comprises a sliding frame (21) connected to the inner wall of the connecting frame (1) on both sides, one side of the sliding frame (21) is fixedly connected with a rubber sleeve (22), the surface of the rubber sleeve (22) is in the shape of a half circle, the surface of the rubber sleeve (22) is fixedly connected with a plurality of springs (23), the other end of the spring (23) is fixedly connected to the inner wall of the connecting frame (1), the surface of the sliding frame (21) is slidably connected with a friction block (24), and the surface of the friction block (24) is clamped to the upper end of the inner wall of the connecting frame (1). The connecting frame (1) is internally provided with a limiting frame (25) distributed in a ring shape, and the inner wall of the limiting frame (25) is rotatably connected with a pressure roller (26).

2. The connecting device according to claim 1, characterized in that: The inner wall of the connecting frame (1) is fixedly connected with a fixed block (27) distributed in a ring shape.

3. The connecting device according to claim 2, characterized in that: The end of the fixed block (27) is fixedly connected with an elastic sheet (28), and the other end of the elastic sheet (28) is fixedly connected to the end of the limiting frame (25).

4. The connecting device according to claim 3, characterized in that: The end of the limiting frame (25) is fixedly connected with a guide rod (29), and the surface of the guide rod (29) is slidably connected to the inner wall of the fixed block (27).

5. The connecting device according to claim 3, characterized in that: Both sides of the connecting frame (1) are fixedly connected with a support block (211), and the top of the support block (211) is recessed in an arc shape.

6. The connecting device according to claim 1, characterized in that: ​ 7. The connecting device according to claim 1, characterized in that: The top of the connecting frame (1) is fixedly connected with a blocking rod (210), and the inner wall of the friction block (24) is slidingly connected to the surface of the blocking rod (210) 。

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