Detonating cord cutting device

Abstract

The utility model belongs to the technical field of blasting construction, and particularly relates to a detonating cord cutting device which comprises an outer shell and a supporting plate, an opening is formed in the outer shell and penetrates into the outer shell, the supporting plate is arranged in the opening in a sliding mode, one end of the supporting plate is connected with a blade, and the other end of the supporting plate is connected with the blade. One end of the blade is connected with an opening, the other end of the blade is connected with an elastic piece, the shell is provided with a finger groove, the finger groove penetrates into the opening, the finger groove is formed in the position of the supporting plate, and the shell is provided with a cutting groove. The detonating cord penetrates through the cutting groove, and fingers extend into the finger groove to slide the supporting plate downwards, so that the blade can be pushed to cut the detonating cord; the blade can move only when fingers slide the supporting plate, the blade is prevented from stabbing workers in the carrying process, and meanwhile the cutting process is safe and efficient.

Description

Technical Field

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

[0002] As a stable and reliable explosive transmission device, detonating cord is widely used in smooth surface, pre-splitting and interval blasting in tunnels and open air. According to the on-site processing requirements for detonating cord in the Blasting Safety Regulations (BG6722-2014): "Detonating cord should be cut with a sharp knife and not with scissors", workers usually use utility knives or blades to cut it directly during on-site operations. During the cutting process, the blade is exposed to the outside, and the surface of the detonating cord itself is relatively smooth, so it is very easy to slip during cutting and accidentally injure people. In addition, the blade of the utility knife is thin and exposed to the outside, which is not only inconvenient to carry, but also easy to rust, break and splash when encountering hard objects, and safety accidents are prone to occur. 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 cutting device, which is not only easy to carry but also safe and efficient in the cutting process.

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

[0005] A detonating cord cutting device comprises a shell and a support plate, wherein the shell is provided with an opening, the opening penetrates into the interior of the shell, the support plate is slidably arranged in the opening, one end of the support plate is connected to a blade, and the other end is connected to an elastic member, the shell is provided with a finger groove, the finger groove penetrates into the opening, the finger groove is arranged at the position of the support plate, and the shell is provided with a cutting groove.

[0006] Preferably, a hanging hole for hanging the cutting device is provided at one end of the housing.

[0007] Preferably, a slot is provided at one end of the support plate, and the blade is connected in the slot.

[0008] Preferably, a limiting assembly is provided at one end of the housing, the limiting assembly comprises a limiting block, a limiting shell and an abutting block, and the limiting assembly and the housing are detachably connected.

[0009] Preferably, the limiting block is arranged inside the limiting shell, and an empty slot is also arranged inside the limiting shell, and the empty slot is connected to the limiting block.

[0010] Preferably, a connecting hole is provided on the outer shell, a connecting rod is provided on the limiting shell, the connecting rod is arranged at the empty slot, the limiting shell extends into the opening and is connected to the outer shell, and the connecting rod extends into the connecting hole.

[0011] Preferably, the limiting shell has a certain elasticity.

[0012] Preferably, a through hole is provided on the limiting shell, the through hole passes through both ends and the empty slot of the limiting shell, and the abutment block is arranged at the position of the through hole.

[0013] The utility model has the following advantages and beneficial effects:

[0014] 1. In the utility model, the detonating cord is passed through the cutting groove, the finger is inserted into the finger groove and the support plate is slid downward, and the blade can be pushed to cut the detonating cord. The blade will move only when the finger slides the support plate, avoiding the blade from stabbing the worker during the carrying process, and the cutting process is safe and efficient.

[0015] 2. In the utility model, the limiting shell has a certain elasticity. When replacing the blade, the abutment block is pressed to clamp the blade and the limiting shell. The limiting shell is separated from the opening and the blade is also taken out. It is safe and reliable when replacing the blade, and the service life of the entire cutting device is increased.

[0016] 3. The utility model has a simple structure and is easy to operate, making it convenient to cut the detonating cord. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A three-dimensional diagram of a detonating cord cutting device provided by the utility model;

[0018] Figure 2 A schematic diagram of the shell structure of a detonating cord cutting device provided by the utility model;

[0019] Figure 3 A schematic diagram of the connection structure of a support plate, a blade and a spring of a detonating cord cutting device provided by the utility model;

[0020] Figure 4 A schematic diagram of the limiting shell structure of a detonating cord cutting device provided by the utility model;

[0021] Figure 5 A cross-sectional view of a detonating cord cutting device provided by the utility model;

[0022] Figure 6 A schematic diagram of the connection between the outer shell and the limiting shell of a detonating cord cutting device provided by the utility model;

[0023] Figure 7 A schematic diagram of the internal structure of a detonating cord cutting device provided by the utility model;

[0024] Icon: 1-housing, 101-hanging hole, 102-opening, 103-finger groove, 104-cutting groove, 105-connecting hole, 2-support plate, 21-card slot, 3-blade, 4-spring, 5-limiting shell, 51-empty slot, 52-limiting block, 53-through hole, 54-connecting rod, 6-abutment block. 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 , 2 As shown in Figures 3, 5, 6 and 7, a detonating cord cutting device comprises a shell 1 and a support plate 2. The shell 1 is provided with an opening 102, which penetrates into the interior of the shell 1. The support plate 2 is slidably arranged in the opening 102. A slot 21 is provided at one end of the support plate 2. The blade 3 is connected in the slot 21. The slot 21 can make the blade 3 more stably clamped on the support plate 2, and the blade 3 can be detached from the slot 21. An elastic member is connected to the other end, and the elastic member is a spring 4. When the support plate 2 slides in the shell 1 under force, the spring 4 can be stretched and compressed. When the support plate 2 slides in the shell 1 under force, the spring 4 can be stretched and compressed. When the plate 2 is not under force, the spring 4 resets the support plate 2. A finger groove 103 is provided on the outer shell 1. The finger groove 103 penetrates into the opening 102. The finger groove 103 is set at the position of the support plate 2. The finger is inserted into the finger groove 103 and the support plate 2 is pushed to make the support plate 2 slide in the outer shell 1. A cutting groove 104 is provided on the outer shell 1. The cutting groove 104 is set within the sliding stroke of the blade 3. The detonating cord is inserted into the cutting groove 104 for cutting. A hanging hole 101 for hanging a cutting device is provided at one end of the outer shell 1. The worker can insert a rope into the hanging hole 101 to facilitate carrying the cutting device.

[0029] like Figure 1-7As shown, a limiting assembly is provided at one end of the housing 1, the limiting assembly includes a limiting block 52, a limiting shell 5 and an abutting block 6, the limiting assembly and the housing 1 are detachably connected, the limiting block 52 is provided inside the limiting shell 5, and an empty slot 51 is also provided inside the limiting shell 5, the limiting block 52 is provided below the empty slot 51, and the upper part of the empty slot 51 is not filled by the limiting block 52. When the blade 3 cuts, it passes through the empty slot 51 from the housing 1 and then abuts against the limiting block 52, thereby realizing the cutting function. A connecting hole 105 is provided on the outer shell 1, and a connecting rod 54 is provided on the limiting shell 5. The limiting shell 5 extends into the opening 102 and is connected to the outer shell 1. The connecting rod 54 extends into the connecting hole 105 to prevent the limiting shell 5 from being separated from the outer shell 1. The limiting shell 5 has a certain elasticity, and the limiting shell 5 can be elastically deformed by squeezing. A through hole 53 is provided on the limiting shell 5, and the through hole 53 runs through both ends of the limiting shell 5. Abutment blocks 6 are arranged at the position of the through hole 53. There are at least two abutment blocks 6, which are respectively arranged at the positions of the through holes 53 at the upper and lower ends of the limiting shell 5. The two abutment blocks 6 are squeezed to elastically deform the limiting shell 5, separate the connecting rod 54 and the connecting hole 105, pull out the limiting shell 5, and separate the outer shell 1 and the limiting shell 5.

[0030] like Figure 1-7 As shown, when replacing the blade 3, the finger is inserted into the finger groove 103, and the support plate 2 is slid so that the end of the blade 3 abuts on the limit block 52. Part of the blade 3 is in the empty groove 51. At this time, the abutment block 6 is pinched in the direction of the blade 3 so that the limit shell 5 clamps the blade 3. At this time, the limit shell 5 and the outer shell 1 are also separated. When the limit shell 5 is pulled out, the blade 3 is also pulled out. The removal process is safe and efficient. When installing the blade 3, the opposite operation can be performed.

[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 cutting device, characterized in that: The cutting device includes an outer shell and a support plate. The outer shell is provided with an opening, and the opening passes through the interior of the outer shell. The support plate is slidably arranged in the opening. One end of the support plate is connected to a blade, and the other end is connected to an elastic member. The outer shell is provided with a finger groove, and the finger groove passes through the opening. The finger groove is arranged at the position of the support plate. The outer shell is provided with a cutting groove.

2. A detonating cord cutting device according to claim 1, characterized in that: One end of the shell is provided with a hanging hole for hanging the cutting device.

3. A detonating cord cutting device according to claim 1, characterized in that: A slot is provided at one end of the support plate, and the blade is connected in the slot.

4. A detonating cord cutting device according to claim 1, characterized in that: A limiting assembly is arranged at one end of the shell, and the limiting assembly comprises a limiting block, a limiting shell and an abutting block. The limiting assembly and the shell are detachably connected.

5. A detonating cord cutting device according to claim 4, characterized in that: An empty slot is arranged in the limiting shell, and the limiting block is arranged inside the limiting shell.

6. A detonating cord cutting device according to claim 5, characterized in that: The outer shell is provided with a connecting hole, the limiting shell is provided with a connecting rod, the limiting shell extends into the opening and is connected with the outer shell, and the connecting rod extends into the connecting hole.

7. A detonating cord cutting device according to claim 4, characterized in that: The limiting shell has a certain elasticity.

8. A detonating cord cutting device according to claim 7, characterized in that: The limiting shell is provided with a through hole, the through hole passes through the limiting shell, and the abutment block is arranged at the position of the through hole.

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