Explosion energy blocking device for non-object contact surface of plastic explosive

Abstract

The invention relates to a plastic explosive non-object contact surface explosion energy blocking device which comprises a supporting frame. The two telescopic supporting and jacking mechanisms are arranged at the top end and the bottom end of the horizontal driving mechanism correspondingly, and the telescopic supporting and jacking mechanisms are used for being supported between the top wall and the bottom wall of the tunnel so that the supporting frame can be fixed; the two adjusting mechanisms are in threaded connection with the outer side walls of the two telescopic supporting and jacking mechanisms correspondingly; the arc top supporting mechanism is movably connected to the telescopic top supporting mechanism located at the top end of the horizontal driving mechanism through an adjusting mechanism, and the arc top supporting mechanism is used for blocking explosion energy of the plastic explosive and an arc-shaped non-contact face when the plastic explosive is used for blasting the tunnel arc top; and the side wall supporting mechanism is movably connected to the telescopic jacking mechanism located at the bottom end of the horizontal driving mechanism through the other adjusting mechanism, and the side wall supporting mechanism is used for blocking explosion energy of the non-contact face of the plastic explosive and the side wall when the plastic explosive is used for blasting the side wall of the tunnel.

Description

Technical Field

[0001] The invention belongs to the technical field of tunnel blasting, and in particular relates to an explosion energy blocking device for a non-object contact surface of plastic explosive. Background Art

[0002] Blasting technology is widely used in various fields of construction, and plays an irreplaceable role in urban underground space development, mineral resource mining and other fields. With the improvement of scientific and technological level, the scientific concepts of safety, efficiency and greenness have put forward higher requirements for blasting technology. Directional fracture technology has become a key technology in underground engineering blasting construction, which can improve the quality of rock mass forming around the tunnel and reduce blasting damage to the surrounding rock mass.

[0003] When using directional fracture technology, it is necessary to first blast a blast hole on the side wall of the tunnel, and then load explosives into the blast hole for directionally blasting. Plastic explosives can be used when blasting a blast hole on the side wall of the tunnel. The plastic explosives are pasted at the position where the blast hole needs to be blasted and then detonated. However, when the plastic explosives are pasted on the side wall of the tunnel, there is no obstruction on the non-contact surface between the plastic explosives and the side wall of the tunnel. The energy of the blasting of the explosives will dissipate into the air, causing energy waste and reducing the blasting effect.

[0004] Therefore, it is necessary to design a plastic explosive non-object contact surface explosion energy blocking device to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to provide a plastic explosive non-object contact surface explosion energy blocking device to solve the above-mentioned problem, so as to achieve the purpose of blocking the non-contact surface between the plastic explosive and the tunnel side wall, preventing the explosion energy of the non-contact surface from dissipating into the air, so that all the explosion energy acts on the tunnel side wall.

[0006] To achieve the above object, the present invention provides the following solution: a plastic explosive non-object contact surface explosion energy blocking device, comprising:

[0007] Support frame;

[0008] A horizontal driving mechanism is arranged at the top of the support frame;

[0009] Two telescopic top supporting mechanisms are respectively arranged at the top and bottom ends of the horizontal driving mechanism, and the telescopic top supporting mechanisms are used to support between the top wall and the bottom wall of the tunnel to fix the support frame;

[0010] Two adjustment mechanisms are respectively threadedly connected to the outer side walls of the two telescopic supporting mechanisms;

[0011] An arc top supporting mechanism, movably connected to the telescopic top supporting mechanism located at the top of the horizontal driving mechanism through the adjusting mechanism, the arc top supporting mechanism is used to block the explosion energy between the plastic explosive and the arc-shaped non-contact surface when the plastic explosive is used to blast the tunnel arc top;

[0012] The side wall support mechanism is movably connected to the telescopic support mechanism at the bottom end of the horizontal driving mechanism through another adjusting mechanism. The side wall support mechanism is used to block the explosion energy of the non-contact surface between the plastic explosive and the side wall when the plastic explosive is used to blast the tunnel side wall.

[0013] According to the present invention, a plastic explosive non-object contact surface explosion energy blocking device, the arc top support mechanism includes a first threaded hollow rod, one end of a connecting ear is fixedly connected to the middle of the outer side wall of the first threaded hollow rod, the other end of the connecting ear is rotatably connected to the adjustment mechanism, both ends of the first threaded hollow rod are threadedly connected to the first threaded rod, one end of the first threaded rod away from the first threaded hollow rod is fixedly connected to the first charge tray, and the other end of the first threaded rod away from the first threaded hollow rod is fixedly connected to the support portion.

[0014] According to the plastic explosive non-object contact surface explosion energy blocking device of the present invention, the support part includes a connecting rod, one end of the connecting rod is fixedly connected to an end of the first threaded rod away from the first threaded hollow rod, the other end of the connecting rod is fixedly connected to a ball head, and the ball head is hinged to the support rod.

[0015] According to the present invention, a plastic explosive non-object contact surface explosion energy blocking device, the side wall supporting mechanism comprises a second threaded hollow rod, one end of the connecting ear is fixedly connected to the middle of the outer side wall of the second threaded hollow rod, the other end of the connecting ear is rotatably connected to another adjusting mechanism, the two ends of the second threaded hollow rod are respectively threadedly connected to one end of the second threaded rod, and the other end of the second threaded rod is fixedly connected to the second charging tray.

[0016] A plastic explosive non-object contact surface explosion energy blocking device based on the present invention, the horizontal driving mechanism includes a motor, the motor is fixedly connected to one end of the top of the support frame, the motor output shaft is coaxially fixedly connected to one end of the lead screw, the other end of the lead screw is rotatably connected to a lead screw support, the lead screw support is fixedly connected to the other end of the top of the support frame, the lead screw is threadedly connected to one end of a slider, the slider is horizontally arranged and the other end is slidably connected to a slide rod, the slide rod is parallel to the lead screw and is located in the same horizontal plane, the two ends of the slide rod are respectively fixedly connected to the top of the support frame through slide rod supports, and the two telescopic top support mechanisms are respectively fixedly connected to the top and bottom ends of the slider.

[0017] According to the plastic explosive non-object contact surface explosion energy blocking device of the present invention, the telescopic support mechanism includes a hydraulic cylinder, which is vertically arranged and the fixed end is fixedly connected to the top or bottom end of the sliding block, and the piston end of the hydraulic cylinder is fixedly connected to a supporting foot.

[0018] According to the present invention, a plastic explosive non-object contact surface explosion energy blocking device, the adjusting mechanism comprises an internal threaded sleeve, the inner side wall of the internal threaded sleeve is threadedly connected to the outer side wall of the fixed end of the hydraulic cylinder, a rotating drum is rotatably sleeved on the outer side of the internal threaded sleeve, the outer side wall of the rotating drum is fixedly connected to a connecting block, and the arc top support mechanism and the side wall support mechanism are rotatably connected to the connecting block.

[0019] According to the plastic explosive non-object contact surface explosion energy blocking device of the present invention, four corners of the bottom end of the support frame are respectively provided with walking wheels.

[0020] Compared with the prior art, the present invention has the following advantages and technical effects:

[0021] The present invention provides an arc top support mechanism, which can block the non-contact surface of the plastic explosive when blasting is required at the arc top position of the tunnel arch, and reflect the blasting energy of the non-contact surface into the tunnel side wall to improve the blasting effect. The side wall support mechanism provided can improve the blasting effect of the plastic explosive when blasting the vertical side wall of the tunnel. The adjustment mechanism provided can adjust the positions of the arc top support mechanism and the side wall support mechanism, so that the two can reflect the energy of blasting at any position in the tunnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative labor:

[0023] Figure 1 It is an overall schematic diagram of the present invention;

[0024] Figure 2 This is a schematic diagram of the side wall support mechanism of the present invention in an extended state;

[0025] Figure 3 The arc top support mechanism of the present invention is shown in the extended state Figure 1 ;

[0026] Figure 4 The arc top support mechanism of the present invention is shown in the extended state Figure 2 ;

[0027] Figure 5This is a schematic diagram of Embodiment 2 of the present invention.

[0028] Among them, 1. support frame; 2. walking wheel; 3. motor; 4. screw; 5. screw support; 6. slide rod; 7. slide rod support; 8. slider; 9. hydraulic cylinder; 10. support foot; 11. internal thread sleeve; 12. rotating drum; 13. connecting block; 14. connecting ear; 15. first threaded hollow rod; 16. first threaded rod; 17. first medicine tray; 18. connecting rod; 19. ball head; 20. support rod; 21. second threaded hollow rod; 22. second threaded rod; 23. second medicine tray; 24. tunnel; 25. telescopic rod. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. 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.

[0030] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0031] Embodiment 1:

[0032] Reference Figures 1 to 4 As shown, this embodiment provides a plastic explosive non-object contact surface explosion energy blocking device, comprising

[0033] Support frame 1;

[0034] A horizontal driving mechanism is arranged at the top of the support frame 1;

[0035] Two telescopic top supporting mechanisms are respectively arranged at the top and bottom ends of the horizontal driving mechanism, and the telescopic top supporting mechanisms are used to support between the top wall and the bottom wall of the tunnel to fix the support frame 1;

[0036] Two adjustment mechanisms are respectively threadedly connected to the outer side walls of the two telescopic support mechanisms;

[0037] The arc top support mechanism is movably connected to the telescopic top support mechanism located at the top of the horizontal driving mechanism through the adjustment mechanism. The arc top support mechanism is used to block the explosion energy of the plastic explosive and the arc-shaped non-contact surface when the plastic explosive is used to blast the tunnel arc top;

[0038] The side wall support mechanism is movably connected to the telescopic support mechanism at the bottom end of the horizontal driving mechanism through another adjustment mechanism. The side wall support mechanism is used to block the explosion energy of the non-contact surface between the plastic explosive and the side wall when the plastic explosive is used to blast the tunnel side wall.

[0039] Optionally, the arc top support mechanism includes a first threaded hollow rod 15, one end of which is fixedly connected to a connecting ear 14 in the middle of the outer side wall of the first threaded hollow rod 15, the other end of the connecting ear 14 is rotatably connected to the adjustment mechanism, both ends of the first threaded hollow rod 15 are threadedly connected to first threaded rods 16, one end of the first threaded rod 16 away from the first threaded hollow rod 15 is fixedly connected to a first medicine loading tray 17, and the other end of the first threaded rod 16 away from the first threaded hollow rod 15 is fixedly connected to a support portion.

[0040] Optionally, the support portion includes a connecting rod 18 , one end of the connecting rod 18 is fixedly connected to an end of the first threaded rod 16 away from the first threaded hollow rod 15 , and the other end of the connecting rod 18 is fixedly connected to a ball head 19 , which is hinged to a support rod 20 .

[0041] When the arc top position of the tunnel 24 needs to be blasted, the entire device is first moved to the corresponding blasting position, and then the first threaded hollow rod 15 is rotated so that the first charge plate 17 at one end thereof is perpendicular to the section of the arc position to be blasted, and then a sufficient amount of plastic explosive is loaded into the first charge plate 17, and the first threaded rod 16 is rotated to extend it until the first charge plate 17 filled with plastic explosive is against the arc position to be blasted, and then the first threaded rod 16 at the other end of the first threaded hollow rod 15 is rotated so that the support rod 20 is supported against the side wall and / or bottom wall of the tunnel 24 opposite to the arc top to be blasted. After the inner wall of the tunnel 24 is supported by the first charge plate 17 and the support rod 20, the first charge plate 17 can be used to reflect the explosion energy of the non-contact surface between the plastic explosive and the side wall of the tunnel 24, so that the explosion energy of the plastic explosive is fully applied to the side wall of the tunnel 24.

[0042] Optionally, the side wall supporting mechanism includes a second threaded hollow rod 21, one end of a connecting ear 14 is fixedly connected to the middle of the outer wall of the second threaded hollow rod 21, the other end of the connecting ear 14 is rotatably connected to another adjusting mechanism, and the two ends of the second threaded hollow rod 21 are respectively threadedly connected to one end of a second threaded rod 22, and the other end of the second threaded rod 22 is fixedly connected to a second medicine loading tray 23.

[0043] When it is necessary to blast the vertical side wall of the tunnel 24, first, a sufficient amount of plastic explosive is loaded into the second charging tray 23, and then the second threaded rod 22 is rotated to extend the overall length of the second threaded rod 22 and the second threaded hollow rod 21 until the second charging tray 23 filled with plastic explosive is against the vertical side wall of the tunnel 24, and then the staff moves away and detonates the plastic explosive. Since the second charging trays 23 are provided at both ends of the second threaded hollow rod 21, the corresponding positions of the two vertical side walls of the tunnel 24 can be blasted at the same time, or a certain position of a single side wall can be blasted. When blasting the two side walls at the same time, plastic explosives can be loaded into the two second charging trays 23 respectively and the second charging trays 23 can be pressed against the side walls. When blasting a single side wall, plastic explosives can be loaded into the corresponding second charging tray 23.

[0044] Optionally, the horizontal driving mechanism includes a motor 3, which is fixedly connected to one end of the top of the support frame 1, and the output shaft of the motor 3 is coaxially fixedly connected to one end of a screw 4, and the other end of the screw 4 is rotatably connected to a screw support 5, and the screw support 5 is fixedly connected to the other end of the top of the support frame 1, and the screw 4 is threadedly connected to one end of a slider 8, and the slider 8 is horizontally arranged and the other end is slidably connected to a slide rod 6, and the slide rod 6 is parallel to the screw 4 and located in the same horizontal plane, and both ends of the slide rod 6 are fixedly connected to the top of the support frame 1 through slide rod supports 7, and two telescopic support mechanisms are respectively fixedly connected to the top and bottom ends of the slider 8.

[0045] The horizontal drive mechanism can be used to adjust the front and rear positions of the arc top support mechanism and the side wall support mechanism on the horizontal plane. After the entire device is moved to a certain position and fixed, the position of the arc top support mechanism and the side wall support mechanism can be fine-tuned by the motor 3 and the screw 4. In this way, blasting can be carried out at multiple positions in a certain area without having to frequently move the entire device.

[0046] Optionally, the telescopic supporting mechanism includes a hydraulic cylinder 9, which is vertically arranged and has a fixed end fixedly connected to the top or bottom end of the sliding block 8, and a piston end of the hydraulic cylinder 9 is fixedly connected to a supporting foot 10.

[0047] When the device moves to the area that needs to be blasted, the hydraulic cylinder 9 extends to drive the supporting legs 10 to move. The upper supporting legs 10 are supported on the top of the arc of the tunnel 24, while the lower supporting legs 10 are supported on the ground of the tunnel 24. The two supporting legs 10 are supported at the same time to fix the entire device.

[0048] Optionally, the adjustment mechanism includes an internal threaded sleeve 11, the inner wall of the internal threaded sleeve 11 is threadedly connected to the outer wall of the fixed end of the hydraulic cylinder 9, a rotating cylinder 12 is rotatably sleeved on the outer side of the internal threaded sleeve 11, and a connecting block 13 is fixedly connected to the outer wall of the rotating cylinder 12, and the arc top support mechanism and the side wall support mechanism are rotatably connected to the connecting block 13.

[0049] By rotating the internal threaded sleeve 11 , the internal threaded sleeve 11 can be lifted and lowered in the vertical direction of the hydraulic cylinder 9 , thereby being able to adjust the up and down positions of the arc top support mechanism and the side wall support mechanism.

[0050] Optionally, walking wheels 2 are respectively provided at the four corners of the bottom end of the support frame 1.

[0051] Embodiment 2:

[0052] Reference Figure 5 As shown, the difference between this embodiment and the first embodiment is that one end of the support rod 20 is fixedly connected to the fixed end of the telescopic rod 25. In this embodiment, the length of the telescopic rod 25 can be adjusted so that the support rod 20 can touch the ground of the tunnel 24 when it is supported at a higher position on the vertical side wall of the tunnel 24, thereby preventing the support rod 20 from sliding down during the blasting process and destroying the reflection effect of the explosion energy.

[0053] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0054] The embodiments described above are only descriptions of the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should fall within the protection scope of the present invention.

Claims

1. A plastic explosive non-object contact surface explosion energy blocking device, characterized in that: include Support frame (1); A horizontal driving mechanism, arranged at the top of the support frame (1); Two telescopic top supporting mechanisms are respectively arranged at the top and bottom ends of the horizontal driving mechanism, and the telescopic top supporting mechanisms are used to support between the top wall and the bottom wall of the tunnel so as to fix the support frame (1); Two adjustment mechanisms are respectively threadedly connected to the outer side walls of the two telescopic supporting mechanisms; An arc top supporting mechanism, which is movably connected to the telescopic top supporting mechanism located at the top of the horizontal driving mechanism through the adjusting mechanism, and the arc top supporting mechanism is used to block the explosion energy between the plastic explosive and the arc-shaped non-contact surface when the plastic explosive is used to blast the tunnel arc top; The side wall support mechanism is movably connected to the telescopic support mechanism at the bottom end of the horizontal driving mechanism through another adjusting mechanism. The side wall support mechanism is used to block the explosion energy of the non-contact surface between the plastic explosive and the side wall when the plastic explosive is used to blast the tunnel side wall.

2. The plastic explosive non-object contact surface explosion energy blocking device according to claim 1, characterized in that: The arc top support mechanism comprises a first threaded hollow rod (15), one end of a connecting ear (14) is fixedly connected to the middle of the outer side wall of the first threaded hollow rod (15), the other end of the connecting ear (14) is rotatably connected to the adjustment mechanism, both ends of the first threaded hollow rod (15) are threadedly connected to the first threaded rod (16), one end of the first threaded rod (16) away from the first threaded hollow rod (15) is fixedly connected to the first medicine loading plate (17), and the other end of the first threaded rod (16) away from the first threaded hollow rod (15) is fixedly connected to the support portion.

3. The plastic explosive non-object contact surface explosion energy blocking device according to claim 2, characterized in that: The support portion comprises a connecting rod (18), one end of the connecting rod (18) being fixedly connected to an end of the first threaded rod (16) away from the first threaded hollow rod (15), and the other end of the connecting rod (18) being fixedly connected to a ball head (19), and the ball head (19) being hinged to a support rod (20).

4. The plastic explosive non-object contact surface explosion energy blocking device according to claim 2, characterized in that: The side wall supporting mechanism comprises a second threaded hollow rod (21), one end of the connecting ear (14) is fixedly connected to the middle of the outer wall of the second threaded hollow rod (21), the other end of the connecting ear (14) is rotatably connected to another adjusting mechanism, the two ends of the second threaded hollow rod (21) are respectively threadedly connected to one end of the second threaded rod (22), and the other end of the second threaded rod (22) is fixedly connected to the second medicine loading tray (23).

5. The plastic explosive non-object contact surface explosion energy blocking device according to claim 1, characterized in that: The horizontal driving mechanism comprises a motor (3), the motor (3) is fixedly connected to one end of the top of the support frame (1), the output shaft of the motor (3) is coaxially fixedly connected to one end of a lead screw (4), the other end of the lead screw (4) is rotatably connected to a lead screw support (5), the lead screw support (5) is fixedly connected to the other end of the top of the support frame (1), the lead screw (4) is threadedly connected to one end of a slider (8), the slider (8) is horizontally arranged and the other end is slidably connected to a slide bar (6), the slide bar (6) is parallel to the lead screw (4) and is located in the same horizontal plane, the two ends of the slide bar (6) are respectively fixedly connected to the top of the support frame (1) through a slide bar support (7), and the two telescopic support mechanisms are respectively fixedly connected to the top and bottom ends of the slider (8).

6. The plastic explosive non-object contact surface explosion energy blocking device according to claim 5, characterized in that: The telescopic supporting mechanism comprises a hydraulic cylinder (9), which is arranged vertically and has a fixed end fixedly connected to the top end or the bottom end of the sliding block (8), and a supporting foot (10) is fixedly connected to the piston end of the hydraulic cylinder (9).

7. The plastic explosive non-object contact surface explosion energy blocking device according to claim 6, characterized in that: The adjustment mechanism comprises an internal threaded sleeve (11), the inner side wall of the internal threaded sleeve (11) is threadedly connected to the outer side wall of the fixed end of the hydraulic cylinder (9), a rotating cylinder (12) is rotatably sleeved on the outer side of the internal threaded sleeve (11), the outer side wall of the rotating cylinder (12) is fixedly connected to a connecting block (13), and the arc top support mechanism and the side wall support mechanism are rotatably connected to the connecting block (13).

8. The plastic explosive non-object contact surface explosion energy blocking device according to claim 1, characterized in that: Travel wheels (2) are respectively arranged at the four corners of the bottom end of the support frame (1).

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