Drilling device for road engineering
By introducing a clamping mechanism between limit cone barrels and arc-shaped clamping plates in the road engineering drilling device, the problem of easy deviation of the drill bit during construction is solved, the accuracy and stability of the drilling holes are achieved, and the construction efficiency is improved.
Patent Information
- Application Number
- CN202421301995.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-07
- Publication Date
- 2025-01-10
- Estimated Expiration
- 2034-06-07
AI Technical Summary
The existing road engineering drilling equipment lacks a drill bit drilling lifting limit structure, which causes the drill bit to easily shift due to vibration during construction and cannot be accurately reinserted into the hole, affecting construction efficiency and accuracy.
A drilling device including drill rod, flat plate and auxiliary mechanism is designed to realize the drill bit by combining the limit box, push plate, arc clamp, tie rod, pull ring, spring, screw, nut and limit cone barrel. The lift limit ensures that the drill bit is consistent with the hole position.
Through the clamping mechanism of limiting cone barrels and arc-shaped clamping, the device can effectively lock the drill bit position, ensure the accuracy and stability of the drilling holes, facilitate the use of drill bits of different sizes, and improve the accuracy and safety of the drilling process .
Smart Images
Figure CN222333736U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of road engineering, in particular to a drilling device for road engineering. Background Art
[0002] The construction of bored cast-in-place piles in road engineering is a complex but important process, which mainly involves forming pile holes in the foundation soil by means of mechanical drilling, steel pipe squeezing or manual excavation at the construction site, placing steel cages inside them, and pouring concrete to make piles.
[0003] The prior art does not have a structure for limiting the lifting and lowering of the drill bit when in use, so that when the existing large-scale equipment controls the lifting and rotating of the drill bit to drill, the drill bit and the control equipment are easily offset due to the vibration of the drilling operation, and the drill bit and the hole position are not on the same axis, so that the drill bit cannot be accurately reinserted into the hole after being pulled out of the hole. Based on the deficiencies of the prior art, the utility model designs a drilling device for road engineering. Utility Model Content
[0004] In view of the deficiencies in the prior art, the utility model provides a drilling device for road engineering, which has the advantages of drilling lifting and lowering limit of the drill bit.
[0005] The utility model provides the following technical solution: a drilling device for road engineering, comprising a drill rod, a flat plate is arranged on the outer side of the drill rod, and an auxiliary mechanism is arranged on the flat plate to assist the drill rod in lifting and drilling;
[0006] The auxiliary mechanism includes a limit box, a push plate, a push rod, an arc-shaped clamping plate, a pull rod, a pull ring, a spring, a movable groove, a screw, a nut, a through groove and a limit cone barrel. The limit box is fixedly connected to the upper surface of the flat plate, the push plate is slidably connected to the inside of the limit box, the push rod is fixedly connected to one side of the push plate, the arc-shaped clamping plate is fixedly connected to the outer end of the push rod, the pull rod is fixedly connected to the other side of the push plate, the pull ring is rotatably connected to the outer end of the pull rod, the spring is fixedly connected to the inside of the limit box, the movable groove is opened at the top of the limit box, the screw is fixedly connected to the upper surface of the push plate, the nut is threadedly connected to the screw, the through groove passes through the upper surface of the flat plate, and the limit cone barrel is arranged inside the through groove.
[0007] As a preferred technical solution of the utility model, a joint is fixedly connected to the bottom of the drill rod, and a drill bit body is threadedly connected to the bottom of the joint.
[0008] As a preferred technical solution of the utility model, the four corners of the flat plate are penetrated and inserted with an outer expansion tube, the outer expansion tube is fixedly connected with a barb, the top of the outer expansion tube is fixedly connected with a top plate, the inside of the top plate is penetrated and inserted with an outer expansion inner column, and the top of the outer expansion inner column is fixedly connected with a pedal.
[0009] As a preferred technical solution of the utility model, the drill bit body penetrates and is lifted and lowered inside the limiting cone barrel.
[0010] As a preferred technical solution of the utility model, the top plate is fixedly connected to the upper surface of the flat plate.
[0011] As a preferred technical solution of the utility model, the outer expansion inner column is slidably inserted into the inner part of the outer expansion cylinder.
[0012] As a preferred technical solution of the utility model, the push rod is slidably connected to one side of the limit box, and the pull rod is slidably inserted into the other side of the limit box.
[0013] As a preferred technical solution of the utility model, the arc-shaped clamping plate is clamped and fixed on the outer surface of the limiting cone barrel, one end of the spring is fixedly connected to one side of the push plate, and the screw rod passes through and is slidably connected to the inside of the movable groove.
[0014] Compared with the prior art, the utility model has the following beneficial effects:
[0015] The drilling device for road engineering, by placing a flat plate on the ground so that the outer expansion tube is inserted into the soil, the outer expansion inner column is placed inside the outer expansion tube, and the flat plate is fully inserted into the outer expansion tube by stepping on a pedal to fix the flat plate, at this time, the pull rings are pulled outward one by one to drive the push plate, the push rod and the arc clamping plate to move outward through the pull rod and compress the spring, and then the nut is tightened to lock the position of the push plate and the arc clamping plate, at this time, a limiting cone barrel matching the drill bit size is selected and placed in the through groove and coincides with the drilling point, and then the nut is loosened to release the lock of the push plate and the arc clamping plate, so that the push plate can move outward under the push of the spring and push the arc clamping plate to clamp and fix the limiting cone barrel, after multiple groups of arc clamping plates have completed the clamping and fixing of the limiting cone barrel, the nut is tightened again to lock the position of the arc clamping plate, at this time, the drill bit body can be controlled to rotate and lift for positioning drilling using external equipment, and the device is convenient for limited drilling of drill bits of different sizes. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;
[0017] Figure 2 This is a schematic diagram of the structure of the drill bit of the utility model when viewed from above;
[0018] Figure 3 This is a schematic diagram of the explosion structure of the outer expansion tube of the utility model;
[0019] Figure 4 This is a schematic diagram of the auxiliary mechanism structure of the utility model;
[0020] Figure 5It is a schematic diagram of the cross-sectional structure of the auxiliary mechanism of the utility model.
[0021] In the figure: 1. drill rod; 101. joint; 102. drill bit body; 2. flat plate; 201. outward expansion tube; 202. barb; 203. top plate; 204. outward expansion inner column; 205. pedal; 3. auxiliary mechanism; 301. limit box; 302. push plate; 303. push rod; 304. arc splint; 305. pull rod; 306. pull ring; 307. spring; 308. movable groove; 309. screw; 310. nut; 311. through groove; 312. limit cone barrel. DETAILED DESCRIPTION
[0022] 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 in 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.
[0023] See also Figure 1-5 A drilling device for road engineering includes a drill rod 1, a plate 2 is arranged on the outside of the drill rod 1, an auxiliary mechanism 3 is arranged on the plate 2 to assist the drill rod 1 in lifting and drilling, a joint 101 is fixedly connected to the bottom of the drill rod 1, a drill bit body 102 is threadedly connected to the bottom of the joint 101, and the drill bit body 102 passes through the interior of the limiting cone barrel 312 for lifting.
[0024] See also Figure 4-5, auxiliary mechanism 3, the auxiliary mechanism 3 includes a limit box 301, a push plate 302, a push rod 303, an arc-shaped clamping plate 304, a pull rod 305, a pull ring 306, a spring 307, a movable groove 308, a screw 309, a nut 310, a through groove 311 and a limit cone barrel 312, the limit box 301 is fixedly connected to the upper surface of the flat plate 2, the push plate 302 is slidably connected to the inside of the limit box 301, the push rod 303 is fixedly connected to one side of the push plate 302, the arc-shaped clamping plate 304 is fixedly connected to the outer end of the push rod 303, the pull rod 305 is fixedly connected to the other side of the push plate 302, the pull ring 306 is rotatably connected to the outer end of the pull rod 305, and the spring 307 is fixedly connected It is connected to the inside of the limit box 301, the movable groove 308 is opened at the top of the limit box 301, the screw 309 is fixedly connected to the upper surface of the push plate 302, the nut 310 is threadedly connected to the screw 309, the through groove 311 passes through and is opened on the upper surface of the flat plate 2, the limit cone barrel 312 is arranged inside the through groove 311, the push rod 303 passes through and is slidably connected to one side of the limit box 301, the pull rod 305 passes through and is slidably inserted on the other side of the limit box 301, the arc clamp 304 is clamped and fixed on the outer surface of the limit cone barrel 312, one end of the spring 307 is fixedly connected to one side of the push plate 302, and the screw 309 passes through and is slidably connected to the inside of the movable groove 308.
[0025] By setting a limiting cone barrel 312, the drilling position of the drill bit body 102 can be limited. By setting an arc-shaped clamping plate 304, the limiting cone barrels 312 of different sizes can be clamped and fixed, thereby realizing limited drilling of drill bits of different sizes. By setting a spring 307, a screw 309 and a nut 310, the position of the arc-shaped clamping plate 304 can be locked, thereby strengthening the strength of the arc-shaped clamping plate 304 in clamping and fixing the limiting cone barrel 312.
[0026] See also Figure 3 The four corners of the flat plate 2 are penetrated and inserted with an outer expansion tube 201, the outer expansion tube 201 is fixedly connected with a barb 202, the top of the outer expansion tube 201 is fixedly connected with a top plate 203, the inside of the top plate 203 is penetrated and inserted with an outer expansion inner column 204, the top of the outer expansion inner column 204 is fixedly connected with a pedal 205, the top plate 203 is fixedly connected to the upper surface of the flat plate 2, and the outer expansion inner column 204 is slidably inserted into the inside of the outer expansion tube 201.
[0027] By setting the outer expansion tube 201 and the barbs 202, the plate 2 can be fixed to prevent the drill body 102 from colliding with the limiting cone barrel 312 during the lifting process, which may cause the plate 2 and the limiting cone barrel 312 to move. By setting the outer expansion inner column 204, the outer expansion tube 201 can be expanded to squeeze the surrounding soil while pushing the barbs 202 to be further inserted into the soil to improve the fixing strength.
[0028] Working principle: when the drilling device for road engineering is used, in the initial state, the joint 101 is first set at the bottom end of the drill rod 1, and the bottom of the joint 101 is connected to the drill bit body 102, so as to facilitate drilling. A limited cone barrel 312 is installed in the through groove 311 opened on the plate 2 set on the outside of the drill rod 1. The arc clamping plate 304 connected to the outside of the limited cone barrel 312 is pushed by the push rod 303, the push plate 302 and the spring 307 to clamp and fix the limited cone barrel 312, so as to facilitate the lifting and limiting of the drill rod 1, the joint 101 and the drill bit body 102. At the same time, the outer expansion cylinder 201 and the barb 202 connected at the four corners of the plate 2 are plugged with an outer expansion inner column 204, so as to fix the plate 2;
[0029] When it is necessary to limit the drilling of drill bits of different sizes, first place the plate 2 on the ground so that the outer expansion tube 201 is inserted into the ground, and the outer expansion inner column 204 is placed inside the outer expansion tube 201. The pedal 205 is stepped on to fully insert it into the outer expansion tube 201 to fix the plate 2. At this time, the pull ring 306 is pulled outward one by one so that it drives the push plate 302, the push rod 303 and the arc clamping plate 304 to move outward through the pull rod 305 and compress the spring 307. Then, the nut 310 is tightened to lock the position of the push plate 302 and the arc clamping plate 304. At this time, the limit position matching the drill bit size is selected. The cone barrel 312 is placed in the through groove 311 and coincides with the drilling point. Then, the nut 310 is loosened to release the lock on the push plate 302 and the arc clamp 304, so that the push plate 302 can move outward under the push of the spring 307 and push the arc clamp 304 to clamp and fix the limiting cone barrel 312. After multiple groups of arc clamps 304 have completed the clamping and fixing of the limiting cone barrel 312, the nut 310 is tightened again to lock the position of the arc clamp 304. At this time, the drill bit body 102 can be controlled by external equipment to rotate and lift for positioning drilling. This device is convenient for limiting drilling of drill bits of different sizes.
[0030] 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 drilling device for road engineering, comprising a drilling rod (1), characterized in that: A flat plate (2) is arranged on the outer side of the drill rod (1), and an auxiliary mechanism (3) is arranged on the flat plate (2) to facilitate the lifting and lowering of the drill rod (1) for drilling holes; The auxiliary mechanism (3) comprises a limit box (301), a push plate (302), a push rod (303), an arc-shaped clamping plate (304), a pull rod (305), a pull ring (306), a spring (307), a movable groove (308), a screw rod (309), a nut (310), a through groove (311) and a limit cone barrel (312), wherein the limit box (301) is fixedly connected to the upper surface of the flat plate (2), the push plate (302) is slidably connected to the inside of the limit box (301), the push rod (303) is fixedly connected to one side of the push plate (302), and the arc-shaped clamping plate (304) is fixedly connected to the upper surface of the flat plate (2). At the outer end of the push rod (303), the pull rod (305) is fixedly connected to the other side of the push plate (302), the pull ring (306) is rotatably connected to the outer end of the pull rod (305), the spring (307) is fixedly connected to the inside of the limit box (301), the movable groove (308) is opened at the top of the limit box (301), the screw (309) is fixedly connected to the upper surface of the push plate (302), the nut (310) is threadedly connected to the screw (309), the through groove (311) is opened through the upper surface of the flat plate (2), and the limiting cone barrel (312) is arranged inside the through groove (311).
2. The road engineering drilling device according to claim 1, characterized in that: The bottom of the drill rod (1) is fixedly connected to a joint (101), and the bottom of the joint (101) is threadedly connected to a drill bit body (102).
3. The road engineering drilling device according to claim 1, characterized in that: The four corners of the flat plate (2) are penetrated and inserted with an outer expansion tube (201), the outer expansion tube (201) is fixedly connected with a barb (202), the top of the outer expansion tube (201) is fixedly connected with a top plate (203), the interior of the top plate (203) is penetrated and inserted with an outer expansion inner column (204), and the top of the outer expansion inner column (204) is fixedly connected with a pedal (205).
4. The road engineering drilling device according to claim 2, characterized in that: The drill bit body (102) penetrates and is lifted and lowered inside the limiting cone barrel (312).
5. The road engineering drilling device according to claim 3, characterized in that: The top plate (203) is fixedly connected to the upper surface of the flat plate (2).
6. The road engineering drilling device according to claim 3, characterized in that: The outward-expanding inner column (204) is slidably inserted into the interior of the outward-expanding cylinder (201).
7. The road engineering drilling device according to claim 1, characterized in that: The push rod (303) is slidably connected to one side of the limit box (301), and the pull rod (305) is slidably connected to the other side of the limit box (301).
8. The road engineering drilling device according to claim 1, characterized in that: The arc-shaped clamping plate (304) is clamped and fixed on the outer surface of the limiting cone barrel (312), one end of the spring (307) is fixedly connected to one side of the push plate (302), and the screw rod (309) penetrates and is slidably connected to the inside of the movable groove (308).