Lightweight drill pulling device

Abstract

The utility model discloses a light drill pulling device which comprises a twist drill, a pulling assembly is arranged outside the twist drill, the pulling assembly comprises a shell, a lever, a pulling claw and a handle, the shell is arranged outside the twist drill, openings are formed in the two side walls of the shell, the shell is a hollow shell, a connecting rod is rotationally installed in the shell, the lever is arranged on the connecting rod, and the pulling claw is arranged on the handle. The lever extends out of the two openings, and the two ends of the lever are connected with the pulling claw and the handle respectively. According to the twist drill pulling device, the lever, the handle and the pulling claws are matched, the pulling claws are inserted into the two sides of a twist drill, the handle is manually pressed, pressing force can be transmitted to the pulling claws through the lever, and then the twist drill can be conveniently pulled out upwards; the condition that the twist drill cannot be pulled out due to chipping blockage or friction force between a drill bit and materials is avoided, the pulling-out direction can be reasonably adjusted when the twist drill encounters obstacles such as wall corners, the whole pulling-out process is smoother, and convenience is improved.

Description

Technical Field

[0001] The utility model relates to the field of drill bit extraction, in particular to a light drill extraction device. Background Art

[0002] During the drilling process of the twist drill, the twist drill bit may get stuck in the hole, especially when encountering hard rock or concrete, the probability is relatively high; the reason is due to the blockage of debris during drilling or the friction between the drill bit and the material; if the twist drill is not operated properly, it is easy to cause damage to the drill bit, such as breakage or twisting of the head, which makes it impossible to pull out the twist drill; however, there are some tools that can achieve a certain pulling effect, such as a claw hammer, but due to the limitations of their own structure and being easily restricted by the environment, their smoothness of use may be affected, and even their operation may be more difficult; for this reason, a light drill pulling device is proposed to solve the problems existing in the prior art. Utility Model Content

[0003] The purpose of the utility model is to provide a light drill pulling device in view of the above-mentioned problems. The utility model cooperates with a lever, a handle and a pulling horn, inserts the pulling horn into both sides of the twist drill, manually presses the handle, and transmits the pressing force to the pulling horn through the lever, so that the twist drill can be easily pulled out upward, avoiding the situation where the twist drill cannot be pulled out due to blockage of debris or friction between the drill bit and the material, and when encountering obstacles such as wall corners, the pulling direction can be reasonably adjusted, making the entire pulling process smoother and improving convenience. In order to achieve the above-mentioned utility model purpose, the technical solution adopted by the utility model is as follows:

[0004] According to one aspect of the utility model, a light drill pulling device is provided, including a twist drill, the twist drill is provided with a pulling assembly outside, the pulling assembly includes a shell, a lever, a pulling horn, and a handle, the twist drill is provided with a shell outside, openings are opened on both side walls of the shell, and the shell is a hollow shell, a connecting rod is rotatably installed inside the shell, a lever is provided on the connecting rod, and the lever extends out of two openings, the two ends of the lever are respectively connected to the pulling horn and the handle, a handle is provided on the top of the shell, and an auxiliary component cooperating with the twist drill is provided on the pulling horn.

[0005] Preferably, the auxiliary component includes a V-shaped groove, a locking joint and a fixed push block. A V-shaped groove is opened in the middle of the pulling horn, and two fixed push blocks are symmetrically arranged at the root of the V-shaped groove. A plurality of locking joints are evenly distributed on the twist drill, and the two fixed push blocks cooperate with the locking joints.

[0006] Preferably, the connection point between the connecting rod and the lever is a fulcrum, and the fulcrum is located on the side of the lever close to the pulling horn.

[0007] Preferably, the handle and the lever are of split design, a slot is provided at one end of the lever close to the handle, and a block cooperating with the slot is provided on the handle.

[0008] Preferably, the clamping block is a wedge-shaped block, and the shape of the clamping groove is consistent with that of the clamping block.

[0009] Preferably, a plurality of anti-slip pads are evenly distributed on the bottom of the shell.

[0010] Preferably, two brackets are symmetrically arranged on the shell, and each bracket is hinged to the shell.

[0011] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0012] 1. The light drill pulling device described in the utility model cooperates with a lever, a handle and a pulling horn. The pulling horns are inserted into both sides of the twist drill, and the handle is manually pressed. The pressing force can be transmitted to the pulling horn through the lever, so that the twist drill can be easily pulled out upward, avoiding the situation where the twist drill cannot be pulled out due to debris blockage or friction between the drill bit and the material. In addition, when encountering obstacles such as wall corners, the pulling direction can be reasonably adjusted, making the entire pulling process smoother and improving convenience.

[0013] 2. The light drill pulling device described in the utility model improves the pulling tolerance rate by setting a locking bone joint and a fixed push block, and can change the pulling angle and force into a vertical upward pulling force as much as possible, so that the pulling efficiency of the twist drill can be maximized under the action of the pulling assembly. This approach can reduce the friction between the twist drill and the material and improve the pulling efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0015] Figure 2 This utility model Figure 1 A magnified image of point A;

[0016] Figure 3 It is a bottom-up stereoscopic schematic diagram of the housing of the utility model;

[0017] Figure 4 It is a schematic diagram of the internal structure of the shell of the utility model;

[0018] In the attached drawings, 1. twist drill; 2. shell; 3. lever; 4. horn puller; 5. handle; 6. opening; 7. connecting rod; 8. grip; 9. V-shaped groove; 10. locking joint; 11. fixed push block; 12. slot; 13. block; 14. anti-slip pad; 15. pressure plate; 16. bracket. DETAILED DESCRIPTION

[0019] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail with reference to the accompanying drawings and preferred embodiments. However, it should be noted that many details listed in the specification are only for the purpose of enabling readers to have a thorough understanding of one or more aspects of the utility model, and these aspects of the utility model can be realized even without these specific details.

[0020] See also Figures 1 to 4 The utility model provides a light drill pulling device, and the technical solution is as follows:

[0021] The utility model comprises a twist drill 1, which is provided with a pulling assembly outside the twist drill 1, and the pulling assembly comprises a shell 2, a lever 3, a pulling horn 4, and a handle 5. The twist drill 1 is provided with a shell 2 outside, and openings 6 are opened on both side walls of the shell 2, and the shell 2 is a hollow shell. A connecting rod 7 is rotatably installed inside the shell 2, and a lever 3 is provided on the connecting rod 7, and the lever 3 is extended out of two openings 6, and the two ends of the lever 3 are respectively connected with the pulling horn 4 and the handle 5, a handle 8 is provided on the top of the shell 2, and an auxiliary assembly cooperating with the twist drill 1 is provided on the pulling horn 4.

[0022] During the drilling process of the existing twist drill 1, the head of the twist drill 1 may get stuck in the hole, especially when encountering hard rock or concrete. The reason is that the debris is blocked during drilling or the friction between the drill bit and the material. If the twist drill 1 is not operated properly, it is easy to cause damage to the drill bit, such as the head breaking or twisting, which makes it impossible to pull out the twist drill 1.

[0023] Through the cooperation of the lever 3, the handle 5 and the pulling horn 4, the pulling horn 4 is inserted into the two sides of the twist drill 1, and the handle 5 is manually pressed. The pressing force can be transmitted to the pulling horn 4 through the lever 3, so that the twist drill 1 can be easily pulled out, avoiding the situation that the twist drill 1 cannot be pulled out due to blockage of debris or friction between the drill bit and the material, thereby improving convenience; and a handle 8 is provided on the top of the shell 2. When the construction personnel pull out the twist drill 1 through the pulling assembly, they hold the handle 8 with one hand and hold the handle 5 with the other hand to press, so as to avoid the shell 2 being offset during the pulling process, which causes the hand pressing force to be unable to be stably transmitted to the pulling horn 4, thereby affecting the pulling effect, thereby improving the pulling stability.

[0024] The auxiliary component includes a V-shaped groove 9, a locking bone joint 10 and a fixed push block 11. A V-shaped groove 9 is opened in the middle of the pulling horn 4, and two fixed push blocks 11 are symmetrically arranged at the root of the V-shaped groove 9. A plurality of locking bone joints 10 are evenly distributed on the twist drill 1. The distance between two adjacent locking bone joints 10 is 20 cm, and the two fixed push blocks 11 cooperate with the locking bone joints 10; the diameter of the V-shaped groove 9 is greater than or equal to the diameter of the twist drill 1, that is, the root diameter of the V-shaped groove 9 is equal to the diameter of the twist drill 1. Since the process of pulling out the twist drill 1 requires multiple use of the pulling assembly to pull out the twist drill 1, and then the V-shaped groove 9 and the twist drill 1 are engaged. When the V-shaped groove 9 is engaged, only the root of the V-shaped groove 9 is in contact with the twist drill 1, which improves the smoothness of the continuous pulling of the twist drill 1 by the pulling horn 4; when the pulling horn 4 pulls the twist drill 1, due to the lever 3, the pulling angle and force are not vertical, and by providing the locking bone joint 10 and the fixed push block 11, the pulling tolerance rate is improved, and the pulling angle and force can be changed to a vertical upward pulling force as much as possible, so that the pulling efficiency of the twist drill 1 can be maximized under the action of the pulling component. This approach can reduce the friction between the twist drill 1 and the material and improve the pulling efficiency.

[0025] The connection point between the connecting rod 7 and the lever 3 is a fulcrum, and the fulcrum is located on the side of the lever 3 close to the pulling horn 4; when the fulcrum is moved to the side close to the pulling horn 4, the lever 3 forms a labor-saving lever 3, and the labor-saving lever 3 can produce a greater effect with a smaller force, that is, the construction worker does not need to press very hard, but can use the lever 3 to give the pulling horn 4 the force to pry the twist drill 1, thereby reducing labor costs and reducing the time cost of the pulling assembly to pull out the twist drill 1, thereby improving the efficiency of the entire pulling action.

[0026] The handle 5 and the lever 3 are of split design, and a slot 12 is provided at one end of the lever 3 near the handle 5, and a block 13 that cooperates with the slot 12 is provided on the handle 5; the handle 5 and the lever 3 are of split design, and the handle 5 is suitable for use when the twist drill 1 is drilling a hole on the ground. When the twist drill 1 is drilling a hole in a wall perpendicular to the ground, the applicability of the handle 5 will be reduced. At this time, the handle 5 can be removed from the lever 3 and replaced with a pressure plate 15. By pressing the pressure plate 15 with the palm of the hand, the depth of a single pull-out can be increased as much as possible, and the number of pull-outs can be reduced, that is, the efficiency of the pull-out is improved.

[0027] The block 13 is a wedge-shaped block, and the shape of the slot 12 is consistent with the block 13; the widths of the two ends of the wedge-shaped block are different, which can provide a larger stable support area, that is, the block 13 can be more stably fixed in the slot 12 when inserted, and compared with the ordinary block 13 shape, it can provide more stable support; and due to the bevel design on both sides, friction is generated between the block 13 and the slot 12, making it more difficult for the two to be accidentally moved or fallen off, and playing a certain self-locking function, avoiding loosening during use and improving stability.

[0028] A plurality of anti-skid pads 14 are evenly distributed on the bottom of the shell 2 to increase the friction between the shell 2 and the contact surface. When working on a wall perpendicular to the ground, it is even more necessary to increase the friction between the shell 2 and the contact surface to stabilize the shell 2, to avoid the shell 2 being offset due to gravity, affecting the smoothness of the pulling action of the pulling assembly on the twist drill 1, and to reduce the pressure of the construction workers on the shell 2, thereby improving convenience.

[0029] Two brackets 16 are symmetrically arranged on the shell 2, and each bracket 16 is hinged to the shell 2; the bracket 16 plays a supporting role. When in the field, the ground is often sloping or uneven. The unfolded bracket 16 can increase the contact area between the shell 2 and the ground, so that the construction personnel have better stability when operating the lifting and pulling.

[0030] Workflow:

[0031] When the twist drill 1 is on the ground, the staff manually adjusts the pulling horn 4 to the lower end, then aligns the V-groove 9 of the pulling horn 4 with the twist drill 1, and then inserts it into it, releases the lever 3, and under the action of gravity, one end of the handle 8 makes a circular motion downward until the fixed push block 11 in the V-groove 9 contacts the locking joint 10 on the twist drill 1. At this time, the preparation work is completed, and the construction worker presses the handle 8 on the shell 2 with one hand and grabs the handle 5 with the other hand and presses it downward until the handle 5 gradually approaches the ground, and then pulls the handle 5 back and makes a reciprocating up and down motion until the pulling horn 4 pulls the twist drill 1 out of the ground.

[0032] When the twist drill 1 is located on the wall, the handle 8 is detached from the lever 3 through the block 13 and the slot 12, and then the pressure plate 15 is installed with the lever 3. The preliminary preparation work is the same as above. When it is necessary to pull it out from the wall, the staff holds the handle 8 of the shell 2 with one hand and presses the pressure plate 15 with the palm of the other hand until the pressure plate 15 gradually approaches the wall. Repeat the operation until the twist drill 1 is pulled out of the wall.

[0033] The above are only preferred implementations of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A lightweight drilling and pulling device, characterized in that: include: A twist drill (1), wherein the twist drill (1) is provided with an extraction component on the outside, and the extraction component comprises a shell (2), a lever (3), an extraction horn (4), and a handle (5). The twist drill (1) is provided with a shell (2) on the outside, and openings (6) are provided on both side walls of the shell (2), and the shell (2) is a hollow shell. A connecting rod (7) is rotatably installed inside the shell (2), and the connecting rod (7) is provided with a lever (3), and the lever (3) is extended out of the two openings (6). The two ends of the lever (3) are respectively connected to the extraction horn (4) and the handle (5). A grip (8) is provided on the top of the shell (2), and an auxiliary component cooperating with the twist drill (1) is provided on the extraction horn (4).

2. A lightweight drilling and extraction device according to claim 1, characterized in that: The auxiliary component comprises a V-shaped groove (9), a locking bone joint (10) and a fixed push block (11); the middle of the horn puller (4) is provided with a V-shaped groove (9); the root of the V-shaped groove (9) is symmetrically provided with two fixed push blocks (11); a plurality of locking bone joints (10) are evenly distributed on the twist drill (1), and the two fixed push blocks (11) cooperate with the locking bone joints (10).

3. A lightweight drilling and extraction device according to claim 1, characterized in that: The connection point between the connecting rod (7) and the lever (3) is a fulcrum, and the fulcrum is located on the side of the lever (3) close to the horn (4).

4. A lightweight drilling and extraction device according to claim 2, characterized in that: The handle (5) and the lever (3) are of split-type design; a slot (12) is provided at one end of the lever (3) close to the handle (5); and a block (13) cooperating with the slot (12) is provided on the handle (5).

5. A lightweight drilling and extraction device according to claim 4, characterized in that: The clamping block (13) is a wedge-shaped block, and the shape of the clamping slot (12) is consistent with that of the clamping block (13).

6. A lightweight drilling and extraction device according to claim 1, characterized in that: A plurality of anti-slip pads (14) are evenly distributed on the bottom of the shell (2).

7. A lightweight drilling and extraction device according to claim 1, characterized in that: Two brackets (16) are symmetrically arranged on the shell (2), and each bracket (16) is hinged to the shell (2).

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