Cutting hole positioning device for tunnel blasting

Abstract

The slotting hole positioning device for tunnel blasting comprises an adjusting mechanism, a positioning mechanism is arranged at the top of the adjusting mechanism, the positioning mechanism comprises a protective cover, sliding rods are fixedly installed at the top and the bottom of the inner wall of the protective cover, and limiting rings are fixedly connected to the middles of the outer walls of the sliding rods located on the two sides. One side of each limiting ring is fixedly connected with a spring, the other ends of the springs on the two sides are fixedly connected with sliding sleeves, the inner walls of the sliding sleeves are arranged on the sliding rods in a sleeving mode, and the inner walls of the springs are arranged on the sliding rods in a sleeving mode; the other ends of the sliding sleeves located on the two sides are fixedly connected with a dust cover, one end of the dust cover penetrates through the middle of the protection cover, and the outer wall of the dust cover is slidably connected with the inner wall of the protection cover. And therefore, dust generated during drilling of the drill bit is more effectively intercepted, and a large amount of dust is prevented from being raised.

Description

Technical Field

[0001] The utility model relates to the technical field of drilling hole positioning, in particular to a slot hole positioning device for tunnel blasting. Background Art

[0002] Tunnel blasting is an engineering blasting technique that achieves controlled blasting of rock by cutting holes. The process involves drilling holes in the tunnel, then filling them with blasting agents and finally detonating them to break up the rock.

[0003] A Chinese patent discloses a small-section tunnel full-section blasting slot hole drilling positioning device (publication number: CN218206602U). A water pipe is provided at the left end of the outer side of the housing of the device. A solenoid valve is connected in series in the middle of the water inlet pipe of the water pipe. Water spray holes are provided at the left end of the outer arc surface of the water pipe. The input end of the solenoid valve is electrically connected to the output end of the PLC controller to reduce the flying of dust during the drilling process. The outer arc surface of the water pipe is provided with a nozzle. The water inlet of the nozzle is connected to the water pipe. The water outlet of the nozzle passes through the clearance hole at the left end of the housing to cool the drill rod. However, the device still has the following defects in use:

[0004] Although the above-mentioned device has a water spray outlet on the outside of the water pipe, the effective area of ​​the water column sprayed from the water spray outlet is limited, and a large amount of dust will still be raised during the drilling process of the drill bit. In addition, the water source sprayed from the water pipe through the water spray outlet cannot be recovered, which may cause the device to waste more water when drilling multiple holes inside the tunnel. Utility Model Content

[0005] The technical problems to be solved by the utility model are as follows:

[0006] The effective area of ​​the water column sprayed from the water nozzle is limited, and a large amount of dust will still be raised during the drilling process of the drill bit. In addition, the water sprayed from the water pipe through the water nozzle cannot be recovered, which may waste a lot of water when the device drills multiple holes inside the tunnel.

[0007] The purpose of the utility model can be achieved through the following technical solutions:

[0008] A slot hole positioning device for tunnel blasting, comprising an adjustment mechanism, a positioning mechanism is arranged on the top of the adjustment mechanism, a universal wheel and a brake pad are arranged inside the adjustment mechanism, and a hydraulic rod and a driving device are arranged inside the positioning mechanism;

[0009] Also includes:

[0010] Wherein, the positioning mechanism comprises a protective cover, the top and bottom of the inner wall of the protective cover are fixedly mounted with a slide bar, the middle of the outer wall of the slide bar on both sides is fixedly connected with a limit ring, one side of the limit ring is fixedly connected with a spring, the other end of the spring on both sides is fixedly connected with a sliding sleeve, the inner wall of the sliding sleeve is sleeved with the slide bar, and the inner wall of the spring is sleeved with the slide bar;

[0011] Among them, the other end of the sliding sleeve on both sides is fixedly connected with a dust cover, one end of the dust cover passes through the middle of the protective cover and the outer wall is slidably connected to the inner wall of the protective cover, the end of the dust cover away from the protective cover is set to a cone, and the inner wall of the dust cover is hollow.

[0012] As a further solution of the utility model: a water pipe is fixedly installed on the inner wall of the dust cover and on the side away from the protective cover, the water pipe is arranged in a ring shape, and a plurality of nozzles are fixedly installed on the top of the water pipe, the nozzles are arranged in at least three numbers, and the water spray ports of the plurality of nozzles face downward, and one end of the outer wall of the dust cover passes through the protective cover and is connected with a water inlet pipe.

[0013] As a further solution of the utility model: a water outlet is opened at the bottom of the inner wall of the dust cover, and the water outlet is arranged below the water spraying ports of several nozzles, and a filter is fixedly installed on the top of the inner wall of the water outlet.

[0014] As a further solution of the utility model: the sliding rods on both sides are slidably connected to one end thereof which is away from the sliding sleeve, the middle of the inner wall of the clamping plate is fixedly installed with a driving device, the output end of the driving device is fixedly connected to a drill bit, the other end of the drill bit passes through a protective cover, and the end of the drill bit is located inside the dust cover, the top of the clamping plate is fixedly connected to a handle, the top of the handle passes through the protective cover and the outer wall is slidably connected to the protective cover.

[0015] As a further solution of the utility model: the piston end of the hydraulic rod is fixedly connected with a connecting plate, the top of the connecting plate is fixedly connected with the protective cover, and a threaded groove is provided in the middle of the bottom end of the hydraulic rod.

[0016] As a further solution of the utility model: the adjustment mechanism includes a base, the bottom of the base is rotatably connected to the universal wheels on all sides, one side of the universal wheels on all sides is movably connected to the brake pads, and push rods are symmetrically fixedly installed on the outer wall of the base and away from the dust cover.

[0017] As a further solution of the utility model: a threaded rod is rotatably connected to the middle part of the inner wall of the base, the outer wall of the threaded rod is threadedly sleeved on the threaded groove at the bottom end of the hydraulic rod, the inner wall and the top of the base are both slidably connected to the hydraulic rod, one end of the threaded rod passes through the base and is fixedly connected to a control handle, and the outer side wall of one end of the control handle is rotatably connected to the base.

[0018] Beneficial effects of the utility model:

[0019] (1) The utility model provides a dust cover on the outside of the drill bit, and the dust cover is installed inside the device through a spring structure. This allows the device to use the drill bit to drill holes. As the drill bit penetrates into the wall, the dust cover can still cover the outer area of ​​the drill bit, thereby more effectively intercepting the dust generated by the drill bit during drilling and preventing a large amount of dust from being raised.

[0020] (2) The device is provided with a water pipe equipped with a nozzle inside the dust cover. When the water pipe transports water, the nozzle sprays water toward the drill bit to cool it down. The water sprayed by the nozzle can be gathered and recovered along the water outlet. A filter screen for filtering waste residue is provided at the water outlet to facilitate the secondary use of the water source.

[0021] (3) The device is provided with a threaded rod at the base. When the threaded rod is rotated by the control handle, the drill bit can be driven to change position, which facilitates continuous drilling at similar positions without the need to move the base a second time, thereby improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The utility model is further described below in conjunction with the accompanying drawings.

[0023] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0024] Figure 2 It is a side view schematic diagram of the overall mechanism of the utility model;

[0025] Figure 3 It is a schematic diagram of the internal structure of the utility model;

[0026] Figure 4 yes Figure 3 Schematic diagram of the A region amplification mechanism;

[0027] Figure 5 It is a side view schematic diagram of the overall structure of the dust cover in the utility model.

[0028] In the figure: 1. adjusting mechanism; 101. base; 102. universal wheel; 103. brake pad; 104. push rod; 105. control handle; 106. threaded rod; 2. positioning mechanism; 201. hydraulic rod; 202. connecting plate; 203. protective cover; 204. driving device; 205. drill bit; 206. clamping plate; 207. grip; 208. slide rod; 209. limit ring; 210. spring; 211. dust cover; 212. sleeve; 213. water outlet; 214. filter; 215. water pipe; 216. nozzle; 217. water inlet pipe. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions 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. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] like Figure 1-5 As shown, a slot hole positioning device for tunnel blasting includes an adjustment mechanism 1, a positioning mechanism 2 is arranged on the top of the adjustment mechanism 1, a universal wheel 102 and a brake pad 103 are arranged inside the adjustment mechanism 1, and a hydraulic rod 201 and a driving device 204 are arranged inside the positioning mechanism 2; wherein the positioning mechanism 2 includes a protective cover 203, a sliding rod 208 is fixedly installed on the top and bottom of the inner wall of the protective cover 203, and a limiting ring 209 is fixedly connected to the middle of the outer wall of the sliding rods 208 on both sides, and the limiting ring 209 A spring 210 is fixedly connected to one side of the protective cover 203, and a sleeve 212 is fixedly connected to the other end of the springs 210 on both sides. The inner wall of the sleeve 212 is sleeved with the slide bar 208, and the inner wall of the spring 210 is sleeved with the slide bar 208; wherein, a dust cover 211 is fixedly connected to the other end of the sleeves 212 on both sides, and one end of the dust cover 211 passes through the middle of the protective cover 203 and the outer wall is slidably connected with the inner wall of the protective cover 203. The end of the dust cover 211 located away from the protective cover 203 is set to be conical, and the inner wall of the dust cover 211 is hollow. Figure 3 As shown, the spring 210 pushes the sliding sleeve 212, thereby making the dust cover 211 close to the wall when the drill bit 205 is drilling;

[0031] A water pipe 215 is fixedly installed on the inner wall of the dust cover 211 and located on the side away from the protective cover 203. The water pipe 215 is arranged in a ring shape, and a plurality of nozzles 216 are fixedly installed on the top of the water pipe 215. The nozzles 216 are arranged in at least three, and the water spraying ports of the plurality of nozzles 216 face downward. One end of the outer wall of the dust cover 211 passes through the protective cover 203 and is connected with a water inlet pipe 217. Figure 4-Figure 5As shown, the nozzle 216 sprays water and cools the drill bit 205;

[0032] The bottom of the inner wall of the dust cover 211 is provided with a water outlet 213, and the water outlet 213 is arranged below the water outlets of the plurality of nozzles 216, and a filter screen 214 is fixedly installed on the top of the inner wall of the water outlet 213. Figure 4 As shown, the filter screen 214 filters the water after the drill bit 205 is cooled;

[0033] The ends of the sliding rods 208 on both sides that are away from the sliding sleeve 212 are slidably connected with the clamping plate 206. The middle of the inner wall of the clamping plate 206 is fixedly installed with the driving device 204. The output end of the driving device 204 is fixedly connected with the drill bit 205. The other end of the drill bit 205 passes through the protective cover 203, and the end of the drill bit 205 is located inside the dust cover 211. The top of the clamping plate 206 is fixedly connected with a handle 207. The top of the handle 207 passes through the protective cover 203 and the outer wall is slidably connected to the protective cover 203. Figure 1-Figure 3 As shown, by pushing the handle 207, the clamping plate 206 drives the driving device 204 and the drill bit 205 to move;

[0034] The adjusting mechanism 1 comprises a base 101, the bottom of the base 101 is rotatably connected to universal wheels 102, one side of the universal wheels 102 is movably connected to a brake pad 103, and a push rod 104 is symmetrically fixedly installed on the outer wall of the base 101 away from the dust cover 211. Figure 1-Figure 3 As shown, the push rod 104 cooperates with the universal wheel 102 to move the entire device to the drilling location, and then adjust the brake pad 103 to lock the universal wheel;

[0035] The piston end of the hydraulic rod 201 is fixedly connected with a connecting plate 202, the top of the connecting plate 202 is fixedly connected with the protective cover 203, a threaded groove is provided in the middle of the bottom end of the hydraulic rod 201, a threaded rod 106 is rotatably connected with the middle of the inner wall of the base 101, the outer wall of the threaded rod 106 is threadedly sleeved with the threaded groove at the bottom end of the hydraulic rod 201, the inner wall and the top of the base 101 are both slidably connected with the hydraulic rod 201, one end of the threaded rod 106 passes through the base 101 and is fixedly connected with a control handle 105, and the outer side wall of one end of the control handle 105 is rotatably connected with the base 101, such as Figure 1-3 As shown, the threaded rod 106 is driven to rotate by rotating the control handle 105 , thereby pushing the threaded groove at the bottom end of the hydraulic rod 201 , so that the hydraulic rod 201 moves above the base 101 .

[0036] The working principle of this utility model:

[0037] When the device is in use, the push rod 104 cooperates with the universal wheel 102 to move the device as a whole to the drilling point, then adjust the brake pad 103 to lock the universal wheel, then start the hydraulic rod 201 to drive the positioning mechanism 2 to move up and down, so that the drill bit 205 approaches the drilling point, then push the handle 207 to drive the clamping plate 206 to move outside the slide bar 208, and the driving device 204 drives the drill bit 205 to approach and contact the drilling point, then start the driving device 204 to drive the drill bit 205 to rotate and drill;

[0038] Secondly, when the drill bit 205 is drilling, the water inlet pipe 217 can be connected to an external water source, so that the water source passes through the water pipe 215 and is sprayed out from the water outlet of the nozzle 216. The water source sprayed by the nozzle 216 cools the drill bit 205 below, and then the sprayed water source falls to the bottom of the dust cover and flows into the water outlet 213, and is discharged after being filtered by the filter 214. At this time, the water source can be recovered below the water outlet 213;

[0039] When the handle 207 is pushed and the drill bit 205 is pushed gradually deeper into the drilling point, the dust cover 211 contacts the wall and slides on the surface of the slide rod 208 through the sliding sleeve 212, and the spring 210 gradually contracts and acts in the opposite direction on the sliding sleeve 212, so that the dust cover 211 is close to the wall. When the drilling is completed, the drill bit 205 is pulled out by the handle 207, and the spring 210 pushes the sliding sleeve 212 and the dust cover 211 to reset. Then, the control handle 105 is rotated to drive the threaded rod 106 to rotate, and the threaded rod 106 pushes the threaded groove at the bottom of the hydraulic rod 201, so that the hydraulic rod 201 and the drill bit 205 above and other structures move horizontally, which is convenient for the drill bit 205 to drill at the nearby point.

[0040] The above is a detailed description of an embodiment of the utility model, but the content is only a preferred embodiment of the utility model and cannot be considered to limit the scope of implementation of the utility model. All equivalent changes and improvements made within the scope of application of the utility model should still fall within the scope of the patent coverage of the utility model.

Claims

1. A slot hole positioning device for tunnel blasting, comprising an adjusting mechanism (1), a positioning mechanism (2) is arranged on the top of the adjusting mechanism (1), a universal wheel (102) and a brake pad (103) are arranged inside the adjusting mechanism (1), and a hydraulic rod (201) and a driving device (204) are arranged inside the positioning mechanism (2); It is characterized in that Also includes: The positioning mechanism (2) comprises a protective cover (203), a sliding rod (208) is fixedly installed at the top and bottom of the inner wall of the protective cover (203), a limiting ring (209) is fixedly connected to the middle of the outer wall of the sliding rod (208) on both sides, a spring (210) is fixedly connected to one side of the limiting ring (209), and a sliding sleeve (212) is fixedly connected to the other end of the spring (210) on both sides, the inner wall of the sliding sleeve (212) is sleeved with the sliding rod (208), and the inner wall of the spring (210) is sleeved with the sliding rod (208); The other end of the sliding sleeve (212) on both sides is fixedly connected with a dust cover (211), one end of the dust cover (211) passes through the middle of the protective cover (203) and the outer wall is slidably connected to the inner wall of the protective cover (203), the end of the dust cover (211) away from the protective cover (203) is set to be conical, and the inner wall of the dust cover (211) is hollow.

2. A slot hole positioning device for tunnel blasting according to claim 1, characterized in that: A water pipe (215) is fixedly installed on the inner wall of the dust cover (211) and located on a side away from the protective cover (203); the water pipe (215) is arranged in a ring shape, and a plurality of nozzles (216) are fixedly installed on the top of the water pipe (215); the nozzles (216) are arranged in at least three numbers, and the water spraying ports of the plurality of nozzles (216) face downward; one end of the outer wall of the dust cover (211) passes through the protective cover (203) and is connected to a water inlet pipe (217).

3. A tunnel blasting slot hole positioning device according to claim 1, characterized in that: A water outlet (213) is provided at the bottom of the inner wall of the dust cover (211), and the water outlet (213) is arranged below the water spraying ports of a plurality of spray heads (216), and a filter screen (214) is fixedly installed at the top of the inner wall of the water outlet (213).

4. A tunnel blasting slot hole positioning device according to claim 1, characterized in that: The sliding rods (208) located on both sides are slidably connected to one end of the sliding sleeve (212), and the middle of the inner wall of the clamping plate (206) is fixedly installed with the driving device (204). The output end of the driving device (204) is fixedly connected to the drill bit (205), and the other end of the drill bit (205) passes through the protective cover (203), and the end of the drill bit (205) is located inside the dust cover (211). The top of the clamping plate (206) is fixedly connected to a handle (207), and the top of the handle (207) passes through the protective cover (203) and the outer wall is slidably connected to the protective cover (203).

5. The device for positioning a slot hole for tunnel blasting according to claim 1, characterized in that: The piston end of the hydraulic rod (201) is fixedly connected to a connecting plate (202), the top of the connecting plate (202) is fixedly connected to a protective cover (203), and a threaded groove is provided in the middle of the bottom end of the hydraulic rod (201).

6. The device for positioning a slot hole for tunnel blasting according to claim 1, characterized in that: The adjustment mechanism (1) comprises a base (101), the bottom of the base (101) is rotatably connected to universal wheels (102) on all sides, one side of the universal wheels (102) on all sides is movably connected to brake pads (103), and push rods (104) are symmetrically fixedly mounted on the outer wall of the base (101) and on one side away from the dust cover (211).

7. A slot hole positioning device for tunnel blasting according to claim 6, characterized in that: A threaded rod (106) is rotatably connected to the middle of the inner wall of the base (101); the outer wall of the threaded rod (106) is threadedly sleeved on the thread groove at the bottom end of the hydraulic rod (201); the inner wall and the top of the base (101) are both slidably connected to the hydraulic rod (201); one end of the threaded rod (106) passes through the base (101) and is fixedly connected to a control handle (105); and the outer wall of one end of the control handle (105) is rotatably connected to the base (101).

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