Timing detonating device for surface mine blasting

Abstract

The invention relates to the technical field of exploders, in particular to a timing detonating device for surface mine blasting, which comprises an exploder, two detonating buttons are arranged on the surface of the exploder, a safety cover is rotatably connected to the surface of the exploder, the safety cover blocks the outer sides of the detonating buttons, and when the safety cover blocks the detonating buttons, blocking pieces are arranged on the two sides of the safety cover; the timing detonating device for surface mine blasting has the beneficial effects that the safety cover and the barrier strip are arranged, so that the detonating button is effectively shielded and protected, and the possibility of mistaken touch or illegal operation is avoided. The safety cover rotates with the limiting shaft as the center shaft, the detonation button can be conveniently shielded or exposed, meanwhile, gaps on the two sides of the safety cover are filled with the barrier strips, and the protection effect is further enhanced.

Description

Technical Field

[0001] The present invention relates to the technical field of detonators, and specifically to a timed detonating device for open-pit mine blasting. Background Art

[0002] In open-pit mine blasting operations, timed detonating devices are key equipment to ensure the safe and precise conduct of blasting operations. Traditional detonating devices usually only control the detonation process through simple buttons or switches, lacking sufficient safety protection measures, and are prone to accidental touch or illegal operation, thus leading to safety accidents. To improve the safety and reliability of detonating devices, various improvement schemes have emerged in the prior art.

[0003] However, most of these improvement schemes have problems such as complex operation, poor protection effect, or high cost. For example, some detonating devices use complex electronic locks or password verification systems to prevent accidental touch, but these systems are often cumbersome to operate, and once a failure occurs, it will seriously affect the smooth progress of blasting operations. Some other detonating devices improve safety by adding physical protection structures, but these structures are often bulky and not easy to operate, bringing inconvenience to blasting operations.

[0004] Therefore, there is an urgent need for a timed detonating device for open-pit mine blasting that is both safe and reliable and easy to operate to meet the actual needs of mine blasting operations. Summary of the Invention

[0005] The purpose of the present invention is to provide a timed detonating device for open-pit mine blasting to solve the problems raised in the above background art.

[0006] To achieve the above purpose, the present invention provides the following technical solution: A timed detonating device for open-pit mine blasting, including a detonator. Two detonating buttons are provided on the surface of the detonator. A safety cover is rotatably connected to the surface of the detonator. The safety cover blocks the outside of the detonating buttons. When the safety cover blocks the detonating buttons, sealing members are provided on both sides of the safety cover.

[0007] Preferably, a limiting shaft is fixed on the surface of the detonator. The limiting shaft penetrates through a through-hole. The through-hole is opened on the surface of the safety cover. The limiting shaft is in a "T"-shaped cylindrical structure. The through-hole is in a "convex"-shaped circular hole. The end plate body of the limiting shaft is located in the one-end groove of the through-hole.

[0008] Preferably, the safety cover is in a "C"-shaped arc plate structure. A guide rail groove is opened on the surface of the detonator. The guide rail groove is in a circular arc-shaped ring groove. Both ends of the safety cover are slidably connected in the guide rail groove.

[0009] Preferably, both ends of the safety cover are provided with embedding grooves. Ball bearings are embedded in the embedding grooves. After the end of the safety cover extends into the guide rail groove, the ball bearings abut against the surface of the guide rail groove.

[0010] Preferably, a rubber strip is fixed to the outer ring surface of the guide rail groove, and the rubber strip is an arc-shaped strip. The rubber strip is clamped between the safety cover and the guide rail groove to generate elastic deformation.

[0011] Preferably, a screw hole is provided on the surface of the connection block, a hand screw is screwed inside the screw hole, the hand screw passes through the screw hole and is screwed into the positioning groove, and the positioning groove is provided on the surface of the detonator.

[0012] Preferably, the sealing member includes a baffle bar, and the two detonating buttons are located between the two baffle bars. The width of the baffle bar is equal to the distance from the safety cover to the detonator, and the width of the safety cover is smaller than the distance between the two detonating buttons.

[0013] Preferably, both ends of the detonator are provided with side grooves, and bolting plates are fixed on the surfaces of the side grooves.

[0014] Preferably, a digital display screen is provided on the surface of the detonator.

[0015] Preferably, a wiring hole is provided on the surface of the detonator, and a plurality of wiring holes are provided, and the plurality of wiring holes are arranged and distributed at equal distances and in equal sizes along the top long side of the detonator.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The timed detonation device for open-pit mine blasting proposed by the present invention effectively shields and protects the detonation button by setting a safety cover and a baffle, thereby avoiding the possibility of accidental touch or illegal operation. The safety cover rotates with the limit axis as the central axis, which can conveniently shield or expose the detonation button. At the same time, the baffle fills the gaps on both sides of the safety cover, further enhancing the protection effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 It is a front view of the structure of the present invention; Figure 3 for Figure 2 Structural cross-section view at AA in the middle; Figure 4 for Figure 3 A schematic diagram of the structure enlargement in the middle; Figure 5 for Figure 3 A magnified schematic diagram of the structure at B in the middle; Figure 6 This is a schematic diagram of the connection structure between the safety cover and the connection block of the present invention; Figure 7 It is a schematic diagram of the structure of the detonator of the present invention.

[0018] In the figure: detonator 1, detonating button 2, limit shaft 3, through hole 4, safety cover 5, embedding groove 6, ball 7, guide groove 8, rubber strip 9, connecting block 10, screw hole 11, hand screw 12, positioning groove 13, baffle 14, side groove 15, bolting plate 16, wiring hole 17, digital display screen 18. DETAILED DESCRIPTION

[0019] In order to make the purpose and technical solution of the present invention clearly and completely described, and the advantages more clearly understood, the embodiments of the present invention are further described in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, rather than all of the embodiments, and are only used to explain the embodiments of the present invention, and are not used to limit 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.

[0020] See also Figures 1 to 7 The present invention provides a technical solution: a timed detonating device for open-pit mine blasting, comprising a detonator 1, two detonating buttons 2 are arranged on the surface of the detonator 1, a safety cover 5 is rotatably connected to the surface of the detonator 1, the safety cover 5 blocks the outside of the detonating button 2, a limiting shaft 3 is fixed on the surface of the detonator 1, the limiting shaft 3 passes through a through hole 4, the through hole 4 is arranged on the surface of the safety cover 5, the limiting shaft 3 is a "T"-shaped cylindrical structure, the through hole 4 is a "convex"-shaped circular hole, and the end plate of the limiting shaft 3 is located in a notch at one end of the through hole 4; side grooves 15 are arranged at both ends of the detonator 1, and a bolting plate 16 is fixed on the surface of the side groove 15; a digital display screen 18 is arranged on the surface of the detonator 1; a wiring hole 17 is arranged on the surface of the detonator 1, and a plurality of wiring holes 17 are arranged, and the plurality of wiring holes 17 are arranged and distributed at equal distances and sizes along the top long side of the detonator 1.

[0021] When in use, the safety cover 5 is moved to rotate around the limit axis 3 as the center axis until the safety cover 5 covers the two detonating buttons 2 to prevent the detonating buttons 2 from being accidentally touched; when the detonating buttons 2 need to be pressed, the safety cover 5 is moved again to rotate ninety degrees around the limit axis 3 as the center axis. At this time, the safety cover 5 is between the two detonating buttons 2, and the detonating buttons 2 are exposed for use by the staff.

[0022] The safety cover 5 is in the shape of a circular arc plate structure. A guide groove 8 is provided on the surface of the detonator 1. The guide groove 8 is an arc-shaped annular groove. Both ends of the safety cover 5 are slidably connected in the guide groove 8. Both ends of the safety cover 5 are provided with an embedding groove 6. A ball 7 is embedded in the embedding groove 6. After the end of the safety cover 5 is extended into the guide groove 8, the ball 7 abuts against the surface of the guide groove 8. A rubber strip 9 is fixed on the outer ring surface of the guide groove 8. The rubber strip 9 is an arc-shaped strip. The rubber strip 9 is clamped between the safety cover 5 and the guide groove 8 to produce elastic deformation. A screw hole 11 is provided on the surface of the connecting block 10. A hand-tightened screw 12 is screwed into the screw hole 11. The hand screw 12 passes through the screw hole 11 and is screwed into the positioning groove 13. The positioning groove 13 is provided on the surface of the detonator 1. The rubber strip 9 is clamped between the guide groove 8 and the safety cover 5 to increase the friction between the guide groove 8 and the safety cover 5, so as to prevent the safety cover 5 from sliding along the guide groove 8 without external force. When the safety cover 5 blocks the two detonating buttons 2, the hand screw 12 is screwed and inserted into the positioning groove 13 to brake the safety cover 5. In this way, the safety cover 5 is effectively protected on one side of the detonating button 2. The matching design of the guide groove 8 and the ball 7 makes the safety cover 5 more stable and smooth during the rotation process, reducing friction and wear. At the same time, the rubber strip 9 is clamped between the guide groove 8 and the safety cover 5, increasing the friction and preventing the safety cover 5 from sliding randomly without external force. The matching use of the hand screw 12 and the positioning groove 13 realizes the braking of the safety cover 5, further enhancing the stability of the device.

[0023] When the safety cover 5 blocks the detonating button 2, sealing parts are provided on both sides of the safety cover 5, and the sealing parts include a baffle 14. The two detonating buttons 2 are located between the two baffles 14. The width of the baffle 14 is equal to the distance from the safety cover 5 to the detonator 1, and the width of the safety cover 5 is smaller than the distance between the two detonating buttons 2. The baffle 14 is installed to fill the gaps on both sides of the safety cover 5, that is, when the safety cover 5 blocks the detonating button 2, there is a hidden danger of accidentally touching the detonating button 2 in the gaps on both sides of the safety cover 5. After the baffle 14 is installed, the baffle 14 and the safety cover 5 jointly enclose the detonating button 2 to prevent the detonating button 2 from being accidentally touched.

[0024] The use process of the timed detonator for open-pit mine blasting is as follows: Confirm that the appearance of the detonator 1 is intact and all parts are tightly connected. Check whether the safety cover 5, limit shaft 3, perforation 4 and other parts are intact and have no deformation or wear. Confirm that the digital display screen 18 displays normally, there are no foreign objects in the wiring hole 17, and all wiring is correctly connected. Place the detonator 1 in a predetermined safe position to ensure easy operation and away from dangerous areas. If fixed, the side groove 15 and the bolt plate 16 can be used with the rope body to fix the detonator 1 in a suitable position. Make sure that the safety cover 5 is in a position to cover the two detonating buttons 2, that is, the safety cover 5 rotates with the limit shaft 3 as the center axis to completely cover the detonating buttons 2. Check whether the ball 7 is embedded in the mounting groove 6 and slides smoothly in the guide groove 8. Confirm that the rubber strip 9 is clamped between the safety cover 5 and the guide groove 8 to produce appropriate elastic deformation and increase friction.

[0025] Tighten the hand screw 12 so that it extends from the screw hole 11 and is inserted into the positioning groove 13 to brake the safety cover 5 and prevent it from sliding at will. Confirm that the hand screw 12 is firmly screwed into the positioning groove 13 to ensure that the safety cover 5 will not move due to external forces. Install the baffle 14 on both sides of the safety cover 5 to ensure that both detonation buttons 2 are between the two baffles 14. Check whether the width of the baffle 14 is equal to the distance from the safety cover 5 to the detonator 1 to ensure that the baffle 14 can effectively fill the gap on both sides of the safety cover 5.

[0026] Set the detonation time through the digital display screen 18 and set it accurately according to the equipment manual. After confirming that the setting is correct, save the setting and exit the setting interface. Check again whether the wiring of all wiring holes 17 is firm to ensure that there is no loosening or falling off. Confirm that all external connection devices (such as sensors, wires, etc.) are correctly connected and in working condition. When detonation is required, first loosen the hand screw 12 and pull it out of the positioning groove 13. With the limit axis 3 as the center axis, turn the safety cover 5 ninety degrees so that it is between the two detonation buttons 2 and expose the detonation button 2. Confirm that the surrounding environment is safe and no personnel or equipment is in the danger zone. Press the two detonation buttons 2 in sequence to start the detonation program. Pay close attention to the display status of the digital display screen 18 and the response of the external connection equipment. In case of abnormal situation, take emergency measures immediately and stop the detonation program. After the detonation is completed, turn the safety cover 5 again to the position that completely covers the two detonation buttons 2. Tighten the hand screw 12 and insert it into the positioning groove 13 to achieve braking of the safety cover 5.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A timed detonation device for open-pit mine blasting, comprising a detonator (1), wherein two detonation buttons (2) are provided on the surface of the detonator (1), and characterized in that: A safety cover (5) is rotatably connected to the surface of the detonator (1). The safety cover (5) blocks the outside of the detonation button (2). When the safety cover (5) blocks the detonation button (2), sealing members are provided on both sides of the safety cover (5).

2. The timed detonation device for open-pit mine blasting according to claim 1, characterized in that: A limit shaft (3) is fixed on the surface of the detonator (1). The limit shaft (3) passes through a through hole (4). The through hole (4) is opened on the surface of the safety cover (5). The limit shaft (3) is in a "T"-shaped cylindrical structure, and the through hole (4) is in a "convex"-shaped circular hole. The end plate of the limit shaft (3) is located in the groove at one end of the through hole (4).

3. The timed detonation device for open-pit mine blasting according to claim 1, characterized in that: The safety cover (5) is in a "C"-shaped arc plate structure. A guide rail groove (8) is opened on the surface of the detonator (1). The guide rail groove (8) is in a circular arc-shaped ring groove. Both ends of the safety cover (5) are slidably connected in the guide rail groove (8).

4. The timed detonation device for open-pit mine blasting according to claim 3 is characterized in that: Both ends of the safety cover (5) are provided with embedding grooves (6). Ball bearings (7) are embedded in the embedding grooves (6). After the end of the safety cover (5) extends into the guide rail groove (8), the ball bearings (7) abut against the surface of the guide rail groove (8).

5. The timed detonation device for open-pit mine blasting according to claim 4, characterized in that: A rubber strip (9) is fixed on the outer ring surface of the guide rail groove (8). The rubber strip (9) is in a circular arc-shaped strip. The rubber strip (9) is clamped between the safety cover (5) and the guide rail groove (8) to generate elastic deformation.

6. The timed detonation device for open-pit mine blasting according to claim 1, characterized in that: A screw hole (11) is opened on the surface of the connection block (10). A hand-tightening screw (12) is screwed in the screw hole (11). After the hand-tightening screw (12) passes through the screw hole (11), it is screwed in a positioning groove (13). The positioning groove (13) is opened on the surface of the detonator (1).

7. The timed detonation device for open-pit mine blasting according to claim 1, characterized in that: The sealing member includes a blocking strip (14). Both detonation buttons (2) are located between the two blocking strips (14). The width of the blocking strip (14) is equal to the distance between the safety cover (5) and the detonator (1). The width of the safety cover (5) is smaller than the distance between the two detonation buttons (2).

8. The timed detonation device for open-pit mine blasting according to claim 1, characterized in that: Edge grooves (15) are opened at both ends of the detonator (1). A bolting plate (16) is fixed on the surface of the edge grooves (15).

9. The timed detonation device for open-pit mine blasting according to claim 1, characterized in that: A digital display screen (18) is provided on the surface of the detonator (1).

10. The timed detonation device for open-pit mine blasting according to claim 1, characterized in that: Wiring holes (17) are provided on the surface of the detonator (1). There are multiple wiring holes (17). The multiple wiring holes (17) are arranged in equal distance and equal size along the long side of the top of the detonator (1).

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