A protection device applied to detonator power-on detection

Abstract

The application relates to the technical field of detonator power-on detection, and discloses a protection device applied to detonator power-on detection. A load device is arranged, the load device comprises a strip-shaped plate, a buckle assembly is arranged on the strip-shaped plate, a plurality of detonators can be installed and fixed at one time, the strip-shaped plate is inserted into an explosion-proof box, the strip-shaped plate drives the expansion and retreat of a plug through an expansion piece, the plug can be inserted into each detonator in sequence for detection, in the detection process, the detonator is located in the explosion-proof box, and the hands of an operator are located outside the explosion-proof box, so that the safety factor in the operation process is greatly improved. On the other hand, the application is characterized in that a ratchet wheel, a brake pawl, a driven gear and a toothed plate and other components are arranged to cooperate with each other, so that the strip-shaped plate can drive the ratchet wheel to rotate in the moving process, the strip-shaped plate moves a distance of one buckle assembly every time the ratchet wheel rotates by an angle of one tooth, and thus the detonator can always be aligned with the plug when the strip-shaped plate moves and detects the next detonator.

Description

Technical Field

[0001] This application relates to the field of detonator energization detection technology, specifically to a protective device for detonator energization detection. Background Technology

[0002] The core function of a detonator is to ignite the explosive after being energized. If there are problems such as open circuits, short circuits, or poor contacts in the internal circuitry (e.g., bridge wires, electronic components), it may lead to a misfire or delayed explosion, seriously affecting the safety and effectiveness of blasting operations. Energization detection can identify circuit faults in advance, ensuring that the detonator detonates correctly when needed.

[0003] Currently, detonator testing typically uses an initiator. The testing process involves electrically connecting the detonator to the testing equipment, and the instrument's response determines whether the detonator is functioning correctly. However, there is still a one in a million chance of explosion during testing. Therefore, the detonator needs to be placed in an explosion-proof box. Current explosion-proof boxes have simple structures, low testing efficiency, and require operators to insert their hands inside. While this doesn't cause fatal injuries to operators, a detonator explosion can still cause hand injuries. Utility Model Content

[0004] In view of the above problems, this application provides a protective device for detonator energization detection, which can improve the efficiency of detonator energization detection and has better safety performance.

[0005] According to one aspect of the embodiments of this application, a protective device for detecting the energization of detonators is provided. The protective device for detecting the energization of detonators includes an explosion-proof box, a movable positioning device disposed inside the explosion-proof box, a load device, and a connector device. Two opposing strip-shaped grooves are formed on two side walls of the explosion-proof box. The load device is disposed along the two strip-shaped grooves through the explosion-proof box. The movable positioning device and the connector device are respectively located on both sides of the load device. The movable positioning device includes a ratchet rotatably disposed on the bottom wall of the explosion-proof box and a braking pawl. The braking pawl is located on one side of the ratchet, and a corresponding elastic reset member is provided at the braking pawl. A driven gear is coaxially connected above the ratchet. The load device includes a strip plate, on which multiple latching assemblies are spaced apart along its axial direction. A toothed plate engaging with the driven gear is provided on one side of the strip plate. The connector device includes a telescopic member, and a plug for electrical connection with a detonator is fixed to the free end of the telescopic member.

[0006] In some embodiments, the elastic reset member is a spring sheet, one end of which is fixed to the inner bottom wall of the explosion-proof box. The spring sheet is arc-shaped, and the arc-shaped protruding end of the spring sheet abuts against the brake pawl.

[0007] In some embodiments, handrails are provided at both ends of the strip.

[0008] In some embodiments, the telescopic member includes a guide rail and a telescopic head slidably disposed above the guide rail. The plug is located at the end of the telescopic head. A compression spring is connected between the guide rail and the telescopic head. A connecting plate is provided on the top of the telescopic head. A reserved groove is provided on the top of the explosion-proof box. The connecting plate extends along the reserved groove to the top of the explosion-proof box.

[0009] In some embodiments, the buckle assembly includes an arc-shaped through groove formed above the strip plate, an abutting disc is provided on the side of the arc-shaped through groove near the moving positioning device, and a semi-circular clamp is fitted inside the inner wall of the side of the arc-shaped through groove away from the moving positioning device.

[0010] In some embodiments, a marking assembly is included, the marking assembly including a U-shaped ring disposed on the outer periphery of the end of the telescopic head, and an L-shaped flipping rod connected to the side wall of the U-shaped ring, one end of the L-shaped flipping rod extending through the reserved groove to the top of the explosion-proof box.

[0011] In some embodiments, an observation window is provided on the side panel on the top side of the explosion-proof box.

[0012] The beneficial effects of this application are as follows: By setting up a load device, including a strip plate with a snap-fit ​​assembly, multiple detonators can be installed and fixed at once. When the strip plate is inserted into the explosion-proof box, the extension and retraction of the plug are driven by a telescopic component, allowing the plug to be inserted sequentially into each detonator for testing. During the testing process, the detonators are located inside the explosion-proof box while the operator's hands are outside, thus greatly improving the safety factor during operation. Furthermore, by setting up a ratchet, a brake pawl, a driven gear, and a toothed plate, the strip plate can drive the ratchet to rotate during movement. Each time the ratchet rotates by one tooth angle, the strip plate moves the distance of one snap-fit ​​assembly. This ensures that each time the strip plate moves to test the next detonator, the detonator is always aligned with the plug.

[0013] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application. Attached Figure Description

[0014] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings: Figure 1 This is a schematic diagram of the overall structure of the device provided in the embodiments of this application; Figure 2 This is a partial structural diagram of the explosion-proof box and its connectors provided in an embodiment of this application; Figure 3 A partial structural diagram of the socket device and marking assembly provided in the embodiments of this application; Figure 4 This is a partial structural diagram of the socket device and load device provided in the embodiments of this application; Figure 5 This is a partial structural diagram of the ratchet and brake pawl provided in an embodiment of this application.

[0015] The reference numerals in the detailed embodiments are as follows: A protective device 100 for detonator energization detection, an explosion-proof box 110, a strip groove 111, a reserved groove 112, an observation window 113, a moving positioning device 120, a ratchet 121, a brake pawl 122, an elastic reset component 123, a driven gear 124, a load device 130, a strip plate 131, a handrail 131a, a buckle assembly 132, an arc-shaped through groove 132a, an abutment disc 132b, a clamp 132c, a toothed plate 133, a socket device 140, a telescopic component 141, a telescopic top 141a, a compression spring 141b, a guide rail 141c, a plug 142, a connecting plate 143, a marking assembly 150, a U-shaped ring 151, and an L-shaped flipping rod 152. Detailed Implementation

[0016] The embodiments of the technical solution of this application will be described in detail below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of this application, and are therefore merely examples and should not be used to limit the scope of protection of this application. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit this application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and the foregoing description of the accompanying drawings are intended to cover non-exclusive inclusion.

[0017] For details, please refer to Figures 1 to 5 , Figure 1 This is a schematic diagram of the overall structure of the device provided in an embodiment of this application. Figure 2 This is a partial structural diagram of the explosion-proof box and its connecting parts provided in an embodiment of this application. Figure 3 This is a partial structural diagram of the socket device and marking assembly provided in an embodiment of this application. Figure 4 This is a partial structural diagram of the socket device and load device provided in the embodiments of this application. Figure 5 This is a partial structural diagram of the ratchet and brake pawl provided in an embodiment of this application. The protective device 100 for detonator energization detection includes an explosion-proof box 110, a movable positioning device 120 disposed inside the explosion-proof box 110, a load device 130, and a connector device 140. The explosion-proof box 110 is welded from steel plates. The load device 130 is used to integrate, arrange, and fix the detonators. The connector device 140 is used to connect to the interface end of the detonator for detection. Two opposing strip grooves 111 are formed on the two side walls of the explosion-proof box 110. The load device 130 is disposed along the two strip grooves 111, penetrating the explosion-proof box 110. The load device 130 can enter and pass through the explosion-proof box 110 along the two strip grooves 111. The moving positioning device 120 and the insertion device 140 are located on both sides of the load device 130. The moving positioning device 120 includes a ratchet 121 rotatably mounted on the bottom wall of the explosion-proof box 110 and a braking pawl 122. The braking pawl 122 can restrict the reverse rotation of the ratchet 121. The braking pawl 122 is located on one side of the ratchet 121, and a corresponding elastic reset member 123 is provided at the braking pawl 122. A driven gear 124 is coaxially connected above the ratchet 121, and the driven gear 124 and the ratchet 121 rotate synchronously. The load device 130 includes a strip plate 131, on which multiple latching assemblies 132 are spaced apart along its axial direction. A detonator is installed at the latching assembly, and the insertion end of the detonator faces the insertion device 140. A toothed plate 133 is provided on one side of the strip plate 131, which meshes with the driven gear 124. During movement, the strip plate 131 drives the driven gear 124 to rotate through the toothed plate 133. The socket device 140 includes a telescopic member 141. The free end of the telescopic member 141 is fixed with a plug 142 for electrical connection with the detonator. The plug 142 is electrically connected to the corresponding testing equipment. Depending on the model of the detonator, the plug 142 can be configured accordingly so that the plug 142 can be inserted into the interface end of the detonator to complete the connection.

[0018] As can be seen from the above, in this embodiment of the application, during the working process, multiple detonators are respectively installed and fixed at the buckle assembly 132 of the strip plate 131. The insertion ends of the multiple detonators are rotated to the same angle, pushing the strip plate 131 to be inserted into one of the strip slots 111 and moving towards the other strip slot 111 until the interface end of the first detonator is directly facing the plug 142. At this time, the telescopic member 141 is controlled to extend, and the plug 142 is inserted into the interface end of the detonator. Since the plug 142 is connected to the testing instrument, the detonator and the testing instrument are electrically connected. The testing instrument completes the testing of the detonator. Then the telescopic member 141 is reset, the plug 142 is withdrawn and disconnected from the detonator, and the strip plate 131 continues to be pushed forward. During the movement of the strip plate 131, the driven gear 124 is driven by the toothed plate 133. The driven gear 124 Further driving the ratchet 121 to rotate counterclockwise, at which time the brake pawl 122 slides along the slope of the teeth and lifts up, without obstructing the movement. When the ratchet 121 rotates by one tooth angle, a "click" sound will be heard. This is the sound of the brake pawl 122 being reset and inserted into the tooth groove under the action of the elastic reset member 123. Pull the strip plate 131 backward until the brake pawl 122 is pressed against the ratchet 121. At this time, the interface end of the second detonator will be facing the plug 142 again. Controlling the extension of the telescopic member 141 can complete the power-on detection of the second detonator. Thus, for each tooth angle rotated by the ratchet 121, the strip plate 131 will move the distance of the latching component 132. By continuously pushing the strip plate 131 and then moving the strip plate 131 backward after hearing the "click" sound, and controlling the extension and retraction of the telescopic member 141, the detection of the detonator can be completed quickly.

[0019] In summary, in this application, by setting up a load device 130, which includes a strip plate 131 and a snap-fit ​​assembly 132 on the strip plate 131, multiple detonators can be installed and fixed at one time. When the strip plate 131 is inserted into the explosion-proof box 110, the extension and retraction of the plug 142 is driven by the telescopic member 141. The plug 142 can be inserted into each detonator in sequence for testing. During the testing process, the detonators are located inside the explosion-proof box 110 and the operator's hands are located outside the explosion-proof box 110, thereby greatly improving the safety factor during the operation. On the other hand, this application sets up components such as ratchet 121, brake pawl 122, driven gear 124, and toothed plate 133 to cooperate with each other, so that the strip plate 131 can drive the ratchet 121 to rotate during the movement. For every tooth angle rotated by the ratchet 121, the strip plate 131 will move the distance of the latching assembly 132. This ensures that the detonator can always be aligned with the plug 142 when the next detonator is detected after the strip plate 131 moves.

[0020] In some embodiments, the elastic reset member 123 is a spring sheet, one end of which is fixed to the inner bottom wall of the explosion-proof box 110. The spring sheet is arc-shaped, and its arc-shaped protruding end abuts against the brake pawl 122. In this embodiment, using the spring sheet as the elastic reset member 123 has the advantages of simple structure and convenient processing.

[0021] In some embodiments, handrails 131a are provided at both ends of the strip plate 131. In this embodiment, the handrails 131a facilitate the operator's grip on the strip plate 131.

[0022] In some embodiments, the telescopic member 141 includes a guide rail 141c and a telescopic head 141a slidably disposed above the guide rail 141c. A plug 142 is located at the end of the telescopic head 141a. A compression spring 141b is connected between the guide rail 141c and the telescopic head 141a. A connecting plate 143 is provided on the top of the telescopic head 141a. A reserved slot 112 is provided on the top of the explosion-proof box 110. The connecting plate 143 extends along the reserved slot 112 to the top of the explosion-proof box 110. This application embodiment provides a specific arrangement of the telescopic member 141, with the connecting plate 143 extending to the top of the explosion-proof box 110. Therefore, the operator can push the telescopic head 141a backward or to move it using the connecting plate 143, thereby enabling the plug 142 to be inserted into or removed from the detonator.

[0023] In some embodiments, the snap-fit ​​assembly 132 includes an arc-shaped through groove 132a formed above the strip plate 131. An abutting disc 132b is provided on the side of the arc-shaped through groove 132a near the moving positioning device 120. A semi-circular clamp 132c is fitted inside the inner wall of the side of the arc-shaped through groove 132a away from the moving positioning device 120. In this embodiment, the abutting disc 132b blocks one end of the detonator, preventing the detonator from shifting backward under force when the plug 142 is inserted. By providing the clamp 132c, which is made of an elastic material, the clamp 132c can be clamped around the outer periphery of the detonator to fix it.

[0024] In some embodiments, a marking component 150 is included, which includes a U-shaped ring 151 disposed on the outer periphery of the end of the telescopic head 141a. An L-shaped flipping rod 152 is connected to the side wall of the U-shaped ring 151, and one end of the L-shaped flipping rod 152 extends through the reserved groove 112 to the top of the explosion-proof box 110. In this application, when the detection instrument shows no reading (due to inaccurate fixing angle of the detonator causing the plug 142 to fail to be accurately inserted into the interface end of the detonator) or when the detonator is detected to be abnormal, the telescopic head 141a can be pushed back by pushing the connecting plate 143 to disengage the plug 142 from the detonator. Then, the L-shaped flipping rod 152 is pressed down, and after the L-shaped flipping rod 152 flips, the U-shaped ring 151 tilts upward. During the tilting process of the U-shaped ring 151, one end of the detonator fixed by the clamp 132c is lifted, so that one end of the detonator is disengaged from the clamp 132c and is in a "head-up" position, which is used to distinguish it from other normal detonators.

[0025] In some embodiments, an observation window 113 is provided on the side panel on the top side of the explosion-proof box 110. In this application, the internal condition of the explosion-proof box 110 can be observed by providing the observation window 113.

[0026] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them. Although the foregoing embodiments have provided a detailed description of this application, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and they should all be covered within the scope of the claims and specification of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A protective device for detecting the energization of detonators, characterized in that, The device includes an explosion-proof box, a movable positioning device disposed inside the explosion-proof box, a load device, and a socket device. Two opposing strip grooves are provided on the two side walls of the explosion-proof box. The load device is disposed through the explosion-proof box along the two strip grooves. The movable positioning device and the socket device are respectively located on both sides of the load device. The mobile positioning device includes a ratchet rotatably mounted on the bottom wall of the explosion-proof box and a brake pawl. The brake pawl is located on one side of the ratchet, and a corresponding elastic reset element is provided at the brake pawl. A driven gear is coaxially connected above the ratchet. The load device includes a strip plate, and multiple buckle assemblies are spaced apart along its axial direction on the strip plate. A toothed plate that meshes with the driven gear is provided on one side of the strip plate. The socket device includes a telescopic component, the free end of which is fixed with a plug for electrical connection with a detonator.

2. The protective device for detecting the energization of detonators according to claim 1, characterized in that, The elastic reset element is a spring sheet, one end of which is fixed to the inner bottom wall of the explosion-proof box. The spring sheet is arc-shaped, and the arc-shaped protruding end of the spring sheet abuts against the brake pawl.

3. The protective device for detecting the energization of detonators according to claim 1, characterized in that, Handrails are provided at both ends of the strip.

4. The protective device for detecting the energization of detonators according to claim 1, characterized in that, The telescopic component includes a guide rail and a telescopic head that is slidably disposed above the guide rail. The plug is located at the end of the telescopic head. A compression spring is connected between the guide rail and the telescopic head. A connecting plate is provided on the top of the telescopic head. A reserved groove is provided on the top of the explosion-proof box. The connecting plate extends along the reserved groove to the top of the explosion-proof box.

5. The protective device for detecting the energization of detonators according to claim 4, characterized in that, The buckle assembly includes an arc-shaped through groove formed above the strip plate. An abutting disc is provided on the side of the arc-shaped through groove near the moving positioning device. A semi-circular clamp is fitted inside the inner wall of the side of the arc-shaped through groove away from the moving positioning device.

6. The protective device for detecting the energization of detonators according to claim 5, characterized in that, The device includes a marking assembly, which includes a U-shaped ring disposed on the outer periphery of the end of the telescopic head. An L-shaped flipping rod is connected to the side wall of the U-shaped ring, and one end of the L-shaped flipping rod extends through the reserved groove to the top of the explosion-proof box.

7. The protective device for detecting the energization of detonators according to claim 1, characterized in that, An observation window is provided on the side panel on the top side of the explosion-proof box.

Images