Working platform suitable for drilling and blasting of tunnel with extra-small section

Abstract

The utility model discloses an operation platform suitable for drilling and blasting of an extra-small section tunnel, which comprises an operation bedplate, a first support plate and a second support plate, the bottom of the operation bedplate is fixedly connected with a lifting device, the bottom of the lifting device is fixedly connected with a base, the first support plate is fixedly connected with a first electric push rod and a support rod, and the second support plate is fixedly connected with a second electric push rod. The top end of the first electric push rod is rotatably connected to the side, close to the center of the working platen, of the bottom face of the second supporting plate, the top end of the supporting rod is rotatably connected to the middle of the bottom face of the second supporting plate, and a drilling and blasting mechanism is arranged at the top of the second supporting plate. The position height of the pneumatic hammer drilling machine can be conveniently adjusted, the drilling direction of the pneumatic hammer drilling machine can be conveniently adjusted, the workload of workers is relieved, and the construction efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel drilling and blasting devices, in particular to an operating platform suitable for drilling and blasting of tunnels with extra-small sections. Background Art

[0002] In engineering construction, especially in tunnel excavation, small-section tunnels are often encountered. In small-section tunnels, there will be whole pieces of rock. In order to blast these rocks, it is necessary to use the work platform to elevate the construction workers and then use the pneumatic drill to drill holes in the rocks. After drilling, expansion agents are added to the holes, and the expansion force is used to create cracks or fissures in the rocks, thereby achieving the purpose of rock cracking, so that mechanical crushing can be used later to crush the stones to meet the requirements of backfill.

[0003] Most existing work platforms can move up and down to adjust the construction height of the jackhammer drill, but lack the function of adjusting the drilling direction of the jackhammer drill, resulting in the inability to drill holes in inclined rock walls, which makes construction very inconvenient and reduces work efficiency. Utility Model Content

[0004] In order to solve the above-mentioned technical problems, the utility model provides a work platform suitable for drilling and blasting of tunnels with extra-small cross-sections, which solves the problem that the direction of the hole drilled by the pneumatic drill cannot be adjusted. Not only can the position height of the pneumatic drill be conveniently adjusted, but also the drilling direction of the pneumatic drill can be conveniently adjusted, thereby reducing the workload of workers and improving construction efficiency.

[0005] A work platform suitable for drilling and blasting of tunnels with extra-small cross-sections comprises a work platform, a first support plate and a second support plate. A lifting device is fixedly connected to the bottom of the work platform, a base is fixedly connected to the bottom of the lifting device, a first electric push rod and a support rod are fixedly connected to the first support plate, the top end of the first electric push rod is rotatably connected to one side of the bottom surface of the second support plate close to the center of the work platform, the top end of the support rod is rotatably connected to the middle part of the bottom surface of the second support plate, and a drilling and blasting mechanism is arranged on the top of the second support plate.

[0006] A further technical solution is: a telescopic support mechanism is also provided on the first support plate, and the top end of the telescopic support mechanism is rotatably connected to a side of the bottom surface of the second support plate away from the center of the workbench.

[0007] A further technical solution is: a first slide groove and a second slide groove are respectively opened on both sides of the bottom of the second support plate, the top end of the first electric push rod is rotatably connected to the first sliding block through the first rotating shaft, and the top end of the telescopic support mechanism is rotatably connected to the second sliding block through the second rotating shaft, and the first sliding block and the second sliding block are respectively slidably connected in the first slide groove and the second slide groove.

[0008] A further technical solution is: the telescopic support mechanism is a telescopic sleeve, comprising an outer sleeve fixedly connected to the first support plate and an inner tube rotatably connected to the bottom of the second support plate, the inner tube is slidably connected in the outer sleeve, and corresponding sliders and slide grooves are respectively provided on the outer side of the inner tube and the inner side of the outer sleeve.

[0009] A further technical solution is: the drilling and blasting mechanism includes an installation box fixedly connected to the top of the second support plate, a motor is fixedly connected in the installation box, a threaded rod is fixedly connected to the output end of the motor, the other end of the threaded rod is rotatably connected to the inner wall of the installation box through a bearing, a threaded sleeve is threadedly connected to the threaded rod, a connecting rod is fixedly connected to the top of the threaded sleeve, a sliding hole for sliding through the connecting rod is opened on the top surface of the installation box, the length direction of the sliding hole is parallel to the length direction of the threaded rod, a slide plate is fixedly connected to the top of the connecting rod, and a jackhammer drill is arranged on the slide plate.

[0010] A further technical solution is that a heat dissipation net for dissipating heat from the motor is arranged on the outer side wall of the installation box.

[0011] A further technical solution is: the jackhammer drill is fixedly installed on a support frame, and the bottom end of the support frame is fixedly connected to the slide plate through an L-shaped connecting plate and bolts.

[0012] A further technical solution is: a plurality of moving wheels are evenly distributed on the bottom of the base, and a plurality of supporting legs are arranged on the side wall of the base.

[0013] Beneficial effects of the utility model:

[0014] By setting the first electric push rod and the support rod, it is convenient to control the electric push rod to drive one end of the second support plate to rise and fall according to the angle of the slope of the rock wall, and cooperate with the support rod acting as a fulcrum to adjust the upward or downward angle of the pneumatic drill, which facilitates the adjustment of the drilling direction of the pneumatic drill and improves work efficiency.

[0015] By setting up a drilling and blasting mechanism, when the pneumatic drill is a certain distance away from the predetermined drilling position, the threaded rod is driven to rotate through the output end of the motor, the rotating threaded rod controls the left and right movement of the threaded sleeve, and drives the slide plate to slide on the top of the second support plate through the connecting rod, thereby driving the pneumatic drill to extend or retract, making it convenient for the pneumatic drill to drill holes at the predetermined drilling position.

[0016] The height of the working platform can be adjusted conveniently by setting a lifting device, and the working platform can be moved and fixed conveniently by setting moving wheels and supporting feet on the base. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2It is a cross-sectional schematic diagram of the first support plate, the second support plate and the drilling and blasting mechanism in the structure of the utility model;

[0019] Figure 3 for Figure 2 The enlarged schematic diagram of point A in the middle;

[0020] Figure 4 for Figure 2 The enlarged schematic diagram of point B in the middle;

[0021] Figure 5 It is a structural schematic diagram of the drilling and blasting mechanism in the structure of the utility model;

[0022] Figure 6 A schematic diagram of the drilling angle of the pneumatic drill rig for adjusting the assembly in the structure of the utility model;

[0023] Figure 7 Another schematic diagram of the drilling angle of the pneumatic drill rig for adjusting the assembly in the structure of the utility model.

[0024] In the figure:

[0025] 1. Work table, 2. Lifting device, 3. Base; 4. Moving wheel, 5. First support plate, 6. Second support plate, 7. First electric push rod, 8. Support rod, 9. Telescopic support mechanism, 10. First rotating shaft, 11. First sliding block, 12. First slide groove, 13. Second rotating shaft, 14. Second sliding block, 15. Second slide groove, 16. Third rotating shaft, 17. Installation box, 18. Motor; 19. Threaded rod, 20. Threaded sleeve, 21. Connecting rod, 22. Slide plate, 23. Pneumatic drill, 24. Heat dissipation net, 25. Support frame, 26. L-shaped connecting plate, 27. Bolt, 28. Support leg. DETAILED DESCRIPTION

[0026] Now the utility model is further described in detail with reference to the accompanying drawings. These drawings are simplified schematic diagrams, which only illustrate the basic structure of the utility model in a schematic manner, and therefore only show the components related to the utility model.

[0027] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "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 simplifying the description, 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 cannot be understood as a limitation on the utility model.

[0028] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] An operating platform suitable for drilling and blasting of tunnels with extremely small cross-sections, such as Figure 1-Figure 7 As shown, it includes a work platform 1, a first support plate 5 and a second support plate 6. The bottom of the work platform 1 is fixedly connected to a lifting device 2, the bottom of the lifting device 2 is fixedly connected to a base 3, the first support plate 5 is fixedly connected to a first electric push rod 7 and a support rod 8, the top end of the first electric push rod 7 is rotatably connected to one side of the bottom surface of the second support plate 6 close to the center of the work platform 1, the top end of the support rod 8 is rotatably connected to the middle part of the bottom surface of the second support plate 6, and a drilling and blasting mechanism is arranged on the top of the second support plate 6.

[0030] The first support plate 5 is also provided with a telescopic support mechanism 9, the top end of which is rotatably connected to the bottom surface of the second support plate 6 on one side away from the center of the workbench 1. The telescopic support mechanism 9 increases the stability of the second support plate 6 when it is raised or lowered.

[0031] like Figure 3 and Figure 4 As shown, the first slide groove 12 and the second slide groove 15 are respectively provided on both sides of the bottom of the second support plate 6, the top of the first electric push rod 7 is rotatably connected to the first sliding block 11 through the first rotating shaft 10, and the top of the telescopic support mechanism 9 is rotatably connected to the second sliding block 14 through the second rotating shaft 13. The first sliding block 11 and the second sliding block 14 are slidably connected in the first slide groove 12 and the second slide groove 15 respectively, so that the inclination of the second support plate 6 will not affect the lifting and lowering of the second support plate 6 driven by the first electric push rod 7. The top of the support rod 8 is rotatably connected to the bottom surface of the second support plate 6 through the third rotating shaft 16.

[0032] In one embodiment, the telescopic support mechanism 9 is a telescopic sleeve, including an outer sleeve fixedly connected to the first support plate 5 and an inner tube rotatably connected to the bottom of the second support plate 6, the inner tube is slidably connected in the outer sleeve, and the outer side of the inner tube and the inner side of the outer sleeve are respectively provided with matching sliders and slide grooves. In another embodiment, the telescopic support mechanism 9 uses an electric push rod, the driving end of the electric push rod is fixedly connected to the first support plate 5, and the telescopic end of the electric push rod is rotatably connected to the bottom of the second support plate 6.

[0033] The drilling and blasting mechanism includes an installation box 17 fixedly connected to the top of the second support plate 6, a motor 18 is fixedly connected in the installation box 17, a threaded rod 19 is fixedly connected to the output end of the motor 18, the other end of the threaded rod 19 is rotatably connected to the inner wall of the installation box 17 through a bearing, a threaded sleeve 20 is threadedly connected to the threaded rod 19, a connecting rod 21 is fixedly connected to the top of the threaded sleeve 20, a sliding hole for sliding through the connecting rod 21 is opened on the top surface of the installation box 17, the length direction of the sliding hole is parallel to the length direction of the threaded rod 19, a slide plate 22 is fixedly connected to the top of the connecting rod 21, and a jackhammer drill 23 is arranged on the slide plate 22. The threaded rod 19 is driven to rotate by the motor 18, so that the threaded sleeve 20 on the threaded rod 19 moves horizontally, thereby driving the position of the jackhammer drill 23, so that the jackhammer drill 23 punches the predetermined drilling position. Specifically, the model of the jackhammer drill 23 is G10, and its specific structure and implementation principle are prior art, which will not be repeated here.

[0034] A heat dissipation net 24 for dissipating heat from the motor 18 is provided on the outer wall of the installation box 17. The heat dissipation net 24 is provided on the side of the installation box 17 close to the motor 18. The heat dissipation net 24 helps to dissipate the heat generated when the motor 18 is in operation, thereby avoiding malfunction caused by overheating of the motor 18 and ensuring the normal operation of the equipment.

[0035] The jackhammer drill 23 is fixedly mounted on the support frame 25, and the bottom end of the support frame 25 is fixedly connected to the slide plate 22 through an L-shaped connecting plate 26 and a bolt 27. The support frame 25 is threadedly connected to the slide plate 22 through the bolt 27, and the convenience of disassembling and assembling the jackhammer drill 23 is increased by disassembling and assembling the bolt 27.

[0036] The lifting device 2 uses an electric push rod, specifically, the model is GX-DC / E10, the driving end of the electric push rod is fixedly connected to the base 3, and the telescopic end of the electric push rod is fixedly connected to the work table 1.

[0037] A plurality of moving wheels 4 are evenly arranged at the bottom of the base 3, and a plurality of supporting legs 28 are arranged on the side wall of the base 3. Specifically, the supporting legs 28 are hydraulic supporting legs 28.

[0038] When in use, after the worker stands on the working platform, he starts the lifting device 2 through an external power supply to drive the working platform to rise. When it rises to a predetermined position, he stops the lifting device 2 and starts the first electric push rod 7. According to the angle of the inclined surface of the rock wall, the first electric push rod 7 is controlled to drive one end of the second support plate 6 to rise and fall. When the angle of the inclined surface of the rock wall is upward, such as Figure 6 As shown, the first electric push rod 7 drives one end of the second support plate 6 to descend, so that the drilling angle of the jackhammer drill 23 at the other end of the second support plate 6 moves upward, so that the jackhammer drill 23 can drill holes on the inclined surface of the rock wall with an upward angle. When the inclined surface of the rock wall is downward, as shown in FIG. Figure 7As shown, the first electric push rod 7 drives one end of the second support plate 6 to rise, so that the drilling angle of the pneumatic drill rig 23 at the other end of the second support plate 6 moves downward, so that the pneumatic drill rig 23 can drill holes on the inclined surface of the rock wall at a downward angle, which facilitates the adjustment of the drilling direction of the pneumatic drill rig 23 and improves work efficiency. After drilling, the staff places an expansion agent in the hole.

[0039] Based on the above ideal embodiments of the utility model, the relevant staff can make various changes and modifications without deviating from the technical concept of the utility model through the above description. The technical scope of the utility model is not limited to the content of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A working platform suitable for drilling and blasting of ultra-small cross-section tunnels, characterized in that: It includes a work platform, a first support plate and a second support plate. The bottom of the work platform is fixedly connected to a lifting device, the bottom of the lifting device is fixedly connected to a base, the first support plate is fixedly connected to a first electric push rod and a support rod, the top of the first electric push rod is rotatably connected to one side of the bottom surface of the second support plate close to the center of the work platform, the top of the support rod is rotatably connected to the middle part of the bottom surface of the second support plate, and a drilling and blasting mechanism is arranged on the top of the second support plate.

2. The working platform suitable for drilling and blasting of ultra-small-section tunnels according to claim 1, characterized in that: A telescopic support mechanism is also provided on the first support plate, and the top end of the telescopic support mechanism is rotatably connected to a side of the bottom surface of the second support plate away from the center of the workbench.

3. The working platform suitable for drilling and blasting of ultra-small-section tunnels according to claim 2, characterized in that: A first slide groove and a second slide groove are respectively provided on both sides of the bottom of the second support plate. The top end of the first electric push rod is rotatably connected to the first sliding block via the first rotating shaft. The top end of the telescopic support mechanism is rotatably connected to the second sliding block via the second rotating shaft. The first sliding block and the second sliding block are slidably connected in the first slide groove and the second slide groove respectively.

4. The working platform suitable for drilling and blasting of ultra-small-section tunnels according to claim 2, characterized in that: The telescopic support mechanism is a telescopic sleeve, which includes an outer sleeve fixedly connected to the first support plate and an inner tube rotatably connected to the bottom of the second support plate. The inner tube is slidably connected in the outer sleeve, and matching sliders and slide grooves are respectively provided on the outer side of the inner tube and the inner side of the outer sleeve.

5. The working platform suitable for drilling and blasting of ultra-small-section tunnels according to claim 1, characterized in that: The drilling and blasting mechanism includes an installation box fixedly connected to the top of the second support plate, a motor is fixedly connected in the installation box, a threaded rod is fixedly connected to the output end of the motor, the other end of the threaded rod is rotatably connected to the inner wall of the installation box through a bearing, a threaded sleeve is threadedly connected to the threaded rod, a connecting rod is fixedly connected to the top of the threaded sleeve, a sliding hole for sliding through the connecting rod is opened on the top surface of the installation box, the length direction of the sliding hole is parallel to the length direction of the threaded rod, a slide plate is fixedly connected to the top of the connecting rod, and a jackhammer drill is arranged on the slide plate.

6. The working platform suitable for drilling and blasting of a tunnel with a very small cross section according to claim 5, characterized in that: A heat dissipation net for dissipating heat from the motor is arranged on the outer side wall of the installation box.

7. The working platform suitable for drilling and blasting of a tunnel with a very small cross section according to claim 5, characterized in that: The jackhammer drill is fixedly installed on a support frame, and the bottom end of the support frame is fixedly connected to a slide plate through an L-shaped connecting plate and bolts.

8. The working platform suitable for drilling and blasting of ultra-small-section tunnels according to claim 1, characterized in that: A plurality of moving wheels are evenly arranged on the bottom of the base, and a plurality of supporting legs are arranged on the side wall of the base.

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