Cutting pick cylindrical drill with function of preventing cutting picks from falling off

Abstract

The utility model relates to the technical field of cutting pick cylindrical drills, and discloses a cutting pick cylindrical drill with a function of preventing cutting picks from falling off, which comprises a cylindrical body, a connecting piece is fixedly connected to the top of the cylindrical body, a fixing piece is fixedly connected to the bottom of the cylindrical body, a connecting shaft is arranged in the fixing piece, a drill bit is fixedly connected to the bottom of the connecting shaft, and the drill bit is fixedly connected to the bottom of the connecting shaft. And a handle is slidably connected into the fixing part, a clamping assembly is arranged on the middle side of the outer wall of the handle and used for fixing the connecting shaft, and locking assemblies are arranged on the two sides of the outer wall of the handle and used for locking the handle. According to the utility model, the problem that the falling risk of the cutting pick is increased due to the fact that the cutting pick cylinder drill is easy to cause gradual loosening of a fixing device in high strength and long time is solved, and the purposes of preventing the cutting pick from loosening or falling off in high-strength work and reducing the potential safety hazard in the operation process are achieved, so that the construction quality and precision are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pick barrel drills, in particular to a pick barrel drill with a pick anti-falling function. Background Art

[0002] A pick drill barrel is a drilling tool used in mining, tunneling, and foundation engineering. Equipped with multiple wear-resistant picks, it rotates to cut soil and rock for rapid drilling. Due to complex operating environments, picks are prone to loosening or falling out due to high impact and wear, resulting in reduced drilling efficiency and even equipment failure and safety risks. A pick drill barrel with a pick-loosening feature ensures that the picks are securely fixed, preventing them from loosening or falling out under high-load conditions. This not only improves operational efficiency and stability, but also extends the pick life, reducing equipment downtime and maintenance costs.

[0003] Traditional pick-barrel drills feature a ring of picks mounted around the drill bit. Driven by a drill rig, the picks rotate and gradually cut through soil or rock. As they rotate, the picks sequentially contact and break up the material ahead of the drill hole, allowing the drill bit to penetrate deeper into the ground. As drilling progresses, the pick-barrel drill continuously removes the broken material from the drill hole. Traditional pick-barrel drills are suitable for projects such as mining, tunneling, and foundation engineering, efficiently cutting hard materials. However, the picks are prone to loosening or wear during intensive use, necessitating regular inspection and replacement to ensure efficient and safe drilling.

[0004] The picks in traditional pick barrel drills are usually fixed by means of slots or other fixing methods, and the picks are installed on the drill bit holder of the barrel drill. During high-intensity and long-term drilling work, the picks are subjected to frequent high impact forces and high wear, which can easily cause the fixing device to gradually loosen, thereby increasing the risk of the pick falling off. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides a pick barrel drill with a pick anti-falling function, aiming to improve the problem that the traditional pick barrel drill is prone to gradual loosening of the fixing device under high intensity and long time, thereby increasing the risk of pick falling off.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a pick barrel drill with a pick-cutting anti-falling function, comprising a barrel, a connecting piece fixedly connected to the top of the barrel, a fixing piece fixedly connected to the bottom of the barrel, a connecting shaft provided inside the fixing piece, a drill bit fixedly connected to the bottom of the connecting shaft, a handle slidably connected to the inside of the fixing piece, a clamping assembly provided on the middle side of the outer wall of the handle, the clamping assembly being used to fix the connecting shaft, locking assemblies provided on both sides of the outer wall of the handle, the locking assemblies being used to lock the handle;

[0007] The clamping assembly includes a sliding rod, one end of which is fixedly connected to the middle side of the outer wall of the handle, and the other end of the sliding rod is fixedly connected to a clamping block, the outer wall of the clamping block is slidably connected to the inside of the connecting shaft, and the outer wall of the sliding rod is sleeved with a spring.

[0008] Furthermore, the locking assembly includes a sub-buckle, which is fixedly connected to both sides of the outer wall of the handle, and the outer wall of the sub-buckle is slidably connected to a female buckle.

[0009] Furthermore, a reinforcement ring is fixedly connected to the outer wall of the cylinder, a chip removal hole is opened inside the cylinder, a sleeve is fixedly connected to the outer wall of the clamping block, an outer wall of the connecting shaft is provided with an external thread, and an inner part of the fixing member is provided with an internal thread.

[0010] Furthermore, the outer wall of the sliding rod is slidably connected to the interior of the fixing member, and the sliding rod is used to guide the expansion and contraction of the spring.

[0011] Furthermore, one end of the spring is fixedly connected to the interior of the fixing member, and the other end of the spring is fixedly connected to the interior of the clamping block.

[0012] Furthermore, a clamping hole is provided inside the connecting shaft, and the clamping hole is used to facilitate the movement of the clamping block.

[0013] Furthermore, the outer wall of the collar is fitted onto the outer wall of the connecting shaft, and the outer wall of the clamping block is slidably connected to the inside of the clamping hole.

[0014] Furthermore, the outer wall of the female buckle is fixedly connected to the inside of the fixing member, and the female buckle is used to limit the movement of the sub-buckle.

[0015] The utility model has the following beneficial effects:

[0016] 1. In the utility model, the connecting shaft is first installed inside the fixing part, and then the clamping block is moved to the inside of the connecting shaft when pushed by the spring. At the same time, the sub-buckle and the mother buckle are further limited to make the clamping block stably fixed inside the connecting shaft, which solves the problem that the fixing device of the pick barrel drill is prone to gradual loosening under high intensity and long time, thereby increasing the risk of the pick falling off. It prevents the pick from loosening or falling off during high-intensity work, reduces safety hazards during operation, and thus improves construction quality and precision.

[0017] 2. In the present invention, the external thread on the outer wall of the connecting shaft is matched with the internal thread inside the fixing part to realize the convenient installation and removal of the drill bit. At the same time, the sub-buckle and the female buckle are matched to further limit the connecting shaft and facilitate the release, thereby achieving convenient and fast installation and removal, allowing operators to quickly replace or maintain the cutting teeth, significantly shortening downtime and improving construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the three-dimensional structure of a pick barrel drill with a pick anti-falling function proposed by the present invention;

[0019] Figure 2 This is a schematic diagram of the connecting shaft structure of a pick barrel drill with a pick anti-falling function proposed by the present invention;

[0020] Figure 3 This is a schematic diagram of the internal structure of a fixing part of a pick barrel drill with a pick anti-falling function proposed by the present invention;

[0021] Figure 4 for Figure 3 Enlarged view of point A in the middle.

[0022] Legend:

[0023] 1. Cylinder; 2. Connecting piece; 3. Reinforcement ring; 4. Chip removal hole; 5. Fixing piece; 6. Drill bit; 7. Connecting shaft; 8. Handle; 9. Slide rod; 10. Spring; 11. Snap-on block; 12. Sub-buckle; 13. Female buckle; 14. Ring; 15. Clamping hole; 16. Internal thread; 17. External thread. DETAILED DESCRIPTION

[0024] 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 embodiments described 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 making creative efforts are within the scope of protection of the present invention.

[0025] Reference Figure 1 - Figure 4 The utility model provides an embodiment of a pick barrel drill with a pick tooth anti-falling function, comprising a barrel 1, a connecting piece 2 fixedly connected to the top of the barrel 1, the barrel 1 is conveniently installed through the connecting piece 2, a fixing piece 5 fixedly connected to the bottom of the barrel 1, a connecting shaft 7 is provided inside the fixing piece 5, a drill bit 6 is fixedly connected to the bottom of the connecting shaft 7, the drill bit 6 is conveniently installed and removed through the fixing piece 5 and the connecting shaft 7, a handle 8 is slidably connected to the inside of the fixing piece 5, a clamping assembly is provided on the middle side of the outer wall of the handle 8, the clamping assembly is used to fix the connecting shaft 7, and locking assemblies are provided on both sides of the outer wall of the handle 8, and the locking assembly is used to lock the handle 8;

[0026] The clamping assembly includes a slide rod 9, one end of the slide rod 9 is fixedly connected to the middle side of the outer wall of the handle 8, and the other end of the slide rod 9 is fixedly connected to a clamping block 11. The outer wall of the clamping block 11 is slidably connected to the inside of the connecting shaft 7, and the outer wall of the slide rod 9 is sleeved with a spring 10. The clamping block 11 can be moved to the inside of the connecting shaft 7 and locked by the push of the spring 10. The locking assembly includes a sub-buckle 12, which is fixedly connected to both sides of the outer wall of the handle 8. The outer wall of the sub-buckle 12 is slidably connected to a female buckle 13. Pushing the handle 8 will completely push the clamping block 11 to the inside of the connecting shaft 7, and at the same time, it will drive the sub-buckle 12 to move to the inside of the female buckle 13, thereby further fixing the clamping block 11;

[0027] Reference Figure 2 - Figure 4 The outer wall of the cylinder 1 is fixedly connected with a reinforcement ring 3, and a chip removal hole 4 is opened inside the cylinder 1. The cylinder 1 is further strengthened by the reinforcement ring 3, and chips are removed through the chip removal hole 4. The outer wall of the clamping block 11 is fixedly connected with a collar 14, and the collar 14 prevents the clamping block 11 from moving excessively. The outer wall of the connecting shaft 7 is provided with an external thread 17, and the interior of the fixing member 5 is provided with an internal thread 16. The engagement between the external thread 17 and the internal thread 16 facilitates the installation and removal of the connecting shaft 7. The outer wall of the slide rod 9 is slidably connected Inside the fixing part 5, the sliding rod 9 is used to guide the expansion and contraction of the spring 10, one end of the spring 10 is fixedly connected to the inside of the fixing part 5, the other end of the spring 10 is fixedly connected to the inside of the clamping block 11, and a clamping hole 15 is opened inside the connecting shaft 7. The clamping hole 15 is used to facilitate the movement of the clamping block 11, the outer wall of the ring 14 fits against the outer wall of the connecting shaft 7, the outer wall of the clamping block 11 is slidably connected to the inside of the clamping hole 15, and the outer wall of the female buckle 13 is fixedly connected to the inside of the fixing part 5. The female buckle 13 is used to limit the movement of the sub-buckle 12.

[0028] Working principle: When it is necessary to use a pick barrel drill with a pick anti-falling function, first raise the external thread 17 on the outer wall of the connecting shaft 7 to cooperate with the internal thread 16 inside the fixing piece 5 to easily install the drill bit 6. At the same time, during the installation process, the movement of the connecting shaft 7 pushes the clamping block 11 to slide to the inside of the fixing piece 5, and at the same time, the spring 10 contracts. When the connecting shaft 7 is installed, the spring 10 is no longer under force and rebounds, thereby pushing the clamping block 11 to slide inside the fixing piece 5, thereby moving to the inside of the connecting shaft 7 to limit the connecting shaft 7. At this time, press the handle 8 again to drive the sub-buckle 12 to move to the inside of the female buckle 13 to achieve further limiting. When disassembling, you only need to pull the handle 8 to pull the sub-buckle 12 out of the inside of the female buckle 13, thereby driving the clamping block 11 to move out of the inside of the connecting shaft 7, and then rotate the connecting shaft 7 in the opposite direction to achieve disassembly of the connecting shaft 7 and the drill bit 6.

[0029] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A pick drill barrel with a pick anti-drop function, comprising a barrel (1), characterized in that: The top of the cylinder (1) is fixedly connected to a connecting piece (2), the bottom of the cylinder (1) is fixedly connected to a fixing piece (5), a connecting shaft (7) is provided inside the fixing piece (5), a drill bit (6) is fixedly connected to the bottom of the connecting shaft (7), a handle (8) is slidably connected inside the fixing piece (5), a clamping assembly is provided on the middle side of the outer wall of the handle (8), the clamping assembly is used to fix the connecting shaft (7), and locking assemblies are provided on both sides of the outer wall of the handle (8), the locking assemblies are used to lock the handle (8); The clamping assembly includes a slide rod (9), one end of which is fixedly connected to the middle side of the outer wall of the handle (8), and the other end of the slide rod (9) is fixedly connected to a clamping block (11), the outer wall of the clamping block (11) is slidably connected to the inside of the connecting shaft (7), and the outer wall of the slide rod (9) is sleeved with a spring (10).

2. The pick barrel drill with pick anti-drop function according to claim 1, characterized in that: The locking assembly comprises a sub-button (12), wherein the sub-button (12) is fixedly connected to both sides of the outer wall of the handle (8), and the outer wall of the sub-button (12) is slidably connected to a female button (13).

3. The pick barrel drill with pick anti-drop function according to claim 2, characterized in that: The outer wall of the cylinder (1) is fixedly connected to a reinforcement ring (3), the interior of the cylinder (1) is provided with a chip removal hole (4), the outer wall of the clamping block (11) is fixedly connected to a collar (14), the outer wall of the connecting shaft (7) is provided with an external thread (17), and the interior of the fixing member (5) is provided with an internal thread (16).

4. The pick barrel drill with pick anti-drop function according to claim 1, characterized in that: The outer wall of the sliding rod (9) is slidably connected to the interior of the fixing member (5), and the sliding rod (9) is used to guide the expansion and contraction of the spring (10).

5. The pick barrel drill with pick anti-drop function according to claim 1, characterized in that: One end of the spring (10) is fixedly connected to the interior of the fixing member (5), and the other end of the spring (10) is fixedly connected to the interior of the clamping block (11).

6. The pick barrel drill with pick anti-drop function according to claim 3, characterized in that: A clamping hole (15) is provided inside the connecting shaft (7), and the clamping hole (15) is used to facilitate the movement of the clamping block (11).

7. The pick barrel drill with pick-cutting prevention function according to claim 6, characterized in that: The outer wall of the collar (14) is fitted onto the outer wall of the connecting shaft (7), and the outer wall of the clamping block (11) is slidably connected to the inside of the clamping hole (15).

8. The pick barrel drill with pick anti-drop function according to claim 3, characterized in that: The outer wall of the female buckle (13) is fixedly connected to the interior of the fixing member (5), and the female buckle (13) is used to limit the movement of the sub-buckle (12).

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