Screw tap easy to take out after being broken

Abstract

The utility model discloses a screw tap easy to take out after being broken, which comprises a screw tap handle part and a screw tap blade part arranged on the screw tap handle part, the screw tap handle part and the screw tap blade part are internally provided with mounting holes, the mounting holes are internally provided with first abutting mechanisms, the abutting mechanisms are used for abutting against an unscrewing piece, and the unscrewing piece can be taken out easily through the first abutting mechanisms and the like. According to the technical scheme, when the unscrewing pieces in different shapes are inserted into the mounting holes, the unscrewing pieces can abut against the unscrewing pieces, broken screw taps can be easily taken out from the different unscrewing pieces, universality and compatibility are improved, in addition, through the limiting mechanism and the like, when the abutting block abuts against the unscrewing pieces, the moving disc is prevented from rebounding, and abutting of the abutting block is more stable.

Description

Technical Field

[0001] This utility model relates to the field of tap technology, specifically a tap that is easy to remove after being broken. Background Technology

[0002] Taps are key tools in the field of machining, mainly used for machining internal threads. The main structure includes the tap shank and the tap cutting edge. However, taps are prone to breakage during use due to factors such as material hardness and machining process, resulting in broken tap parts remaining in the machined hole.

[0003] Publication number CN203076733U discloses a tap that is easy to remove after breaking. It provides a simple tap that is easy to remove after breaking, which can not only facilitate the quick and easy removal of broken taps, but also does not increase the investment cost. By setting up unrotating through holes with different cross-sectional shapes such as triangles and squares inside, and then using unrotating parts with corresponding cross-sectional shapes such as triangles and squares to unrotate, these tap removal designs can often only be adapted to a single unrotating part. Taps adapted to a single unrotating part cannot meet diverse needs, resulting in the inability to remove broken taps smoothly when changing different unrotating parts, affecting its versatility and compatibility.

[0004] Therefore, there is an urgent need for a tap that can be easily removed after breaking to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a tap that is easy to remove after breaking, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a tap that is easy to remove after being broken, comprising a tap shank and a tap cutting edge disposed on the tap shank, wherein the tap shank and the tap cutting edge are provided with mounting holes, and a first clamping mechanism is provided in the mounting holes, and the clamping mechanism is used to clamp the unscrewing part.

[0007] The first clamping mechanism includes multiple U-shaped holes arranged in an array within the mounting hole, and a stop block is slidably connected within each U-shaped hole. A hydraulic mechanism is provided within the mounting hole, and the hydraulic mechanism is used to push the stop block to move.

[0008] The hydraulic mechanism includes a movable disc slidably connected in the mounting hole. The movable disc and the bottom of the tap cutting edge form a hydraulic chamber. The hydraulic chamber communicates with a U-shaped hole and is filled with hydraulic oil. A second clamping mechanism is provided between the movable disc and the hydraulic chamber to clamp the movable disc. A limiting mechanism is provided between the movable disc and the inner wall of the mounting hole to limit the movement of the movable disc.

[0009] The second clamping mechanism includes a sleeve fixedly connected to the bottom of the hydraulic chamber. A sliding rod is inserted into the sleeve, and the end of the sliding rod is fixed to the moving disc. An elastic element is provided between the sleeve and the moving disc, and the elastic element is used to provide a squeezing force to the moving disc.

[0010] The limiting mechanism includes multiple arrayed mounting slots on the side wall of the movable disk, and a movable block is slidably connected in each mounting slot. The side wall of the movable block is provided with an inclined surface. The inner wall of the mounting hole is provided with multiple annular limiting slots. The side wall of the movable block is provided with a reset mechanism, which is used to reset and move the movable block.

[0011] The reset mechanism includes a movable rod inserted into the bottom of the mounting slot, with the end of the movable rod fixed to the movable block. A first spring is sleeved on the side wall of the movable rod, and the two ends of the first spring are fixed to the movable block and the bottom of the mounting slot, respectively.

[0012] The elastic element includes a second spring sleeved on the side wall of the sliding rod, and the two ends of the second spring are fixed to the moving disk and the sleeve, respectively.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. The present invention provides a tap that is easy to remove after being broken. Through a first clamping mechanism, etc., when different shaped unscrewing parts are inserted into the mounting hole, the unscrewing parts can be clamped, so that different unscrewing parts can be easily removed after the tap is broken, thereby increasing versatility and compatibility.

[0015] 2. The tap of this utility model is easy to remove after being broken. Through the limiting mechanism, the abutment block prevents the moving disc from springing back when it is pressing against the unscrewing part, so that the abutment block is pressed more firmly. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the first clamping mechanism of this utility model;

[0018] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0019] Figure 4 for Figure 3 Enlarged view of point B in the middle.

[0020] In the diagram: 101, tap shank; 102, tap cutting edge; 103, mounting hole; 201, moving disc; 202, hydraulic chamber; 301, limiting groove; 302, mounting groove; 303, moving block; 304, inclined plane; 401, moving rod; 402, first spring; 501, sleeve; 502, sliding rod; 601, second spring; 7, U-shaped hole; 8, stop block. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-4 The present invention provides a tap that is easy to remove after being broken, including a tap shank 101 and a tap blade 102 provided on the tap shank 101. The tap shank 101 and the tap blade 102 are provided with mounting holes 103. A first clamping mechanism is provided in the mounting holes 103, and the clamping mechanism is used to clamp the unscrewing part.

[0023] The first clamping mechanism includes multiple U-shaped holes 7 arranged in an array within the mounting hole 103, and a stop block 8 is slidably connected within each U-shaped hole 7. A hydraulic mechanism is provided within the mounting hole 103, and the hydraulic mechanism is used to push the stop block 8 to move. Through the first clamping mechanism, when a retractable part of different shapes is inserted into the mounting hole 103, the retractable part can be clamped, making it easy to remove the broken tap from different retractable parts, increasing versatility and compatibility. In addition, through the limiting mechanism, the stop block 8 prevents the moving disc 201 from rebounding when clamping the retractable part, making the clamping of the stop block 8 more stable.

[0024] The hydraulic mechanism includes a movable disk 201 slidably connected in the mounting hole 103. The movable disk 201 and the bottom of the tap cutting part 102 form a hydraulic chamber 202. The hydraulic chamber 202 communicates with the U-shaped hole 7 and is filled with hydraulic oil. A second pressing mechanism is provided between the movable disk 201 and the hydraulic chamber 202, and the second pressing mechanism is used to press the movable disk 201. A limiting mechanism is provided between the movable disk 201 and the inner wall of the mounting hole 103, and the limiting mechanism is used to limit the movable disk 201. When the movable disk 201 moves and the hydraulic chamber 202 decreases, the hydraulic oil in the hydraulic chamber 202 is squeezed into the U-shaped hole 7, which then drives the abutment 8 to abut against the unspinning part.

[0025] The second clamping mechanism includes a sleeve 501 fixedly connected to the bottom of the hydraulic chamber 202. A sliding rod 502 is inserted into the sleeve 501, and the end of the sliding rod 502 is fixed to the moving disk 201. An elastic element is provided between the sleeve 501 and the moving disk 201, and the elastic element is used to provide a squeezing force to the moving disk 201. When the moving disk 201 moves, it drives the sliding rod 502 to move within the sleeve 501, making the movement of the moving disk 201 more stable.

[0026] The limiting mechanism includes multiple arrayed mounting slots 302 formed on the side wall of the movable disk 201, with a movable block 303 slidably connected within each mounting slot 302. The side wall of each movable block 303 has an inclined surface 304, and the inner wall of the mounting hole 103 has multiple annularly arranged limiting slots 301. A reset mechanism is provided on the side wall of the movable block 303, used to reset and move the movable block 303. When the movable disk 201 moves the movable block 303, the movable block 303 moves within the reset mechanism. Under the action of the mechanism, the moving block 303 is always in contact with the inner wall of the mounting hole 103. When the moving block 303 moves to the side of the limiting groove 301, under the action of the reset mechanism, the moving block 303 is inserted into the limiting groove 301. When the moving disk 201 drives the moving block 303 to continue moving, the inclined surface 304 abuts against the side wall of the limiting groove 301, and causes the moving block 303 to move towards the mounting groove 302 until the moving block 303 is completely disengaged from the limiting groove 301, preventing the moving disk 201 from rebounding and making the abutment 8 more firmly pressed.

[0027] The reset mechanism includes a movable rod 401 inserted into the bottom of the mounting groove 302, and the end of the movable rod 401 is fixed to the movable block 303. A first spring 402 is sleeved on the side wall of the movable rod 401, and the two ends of the first spring 402 are respectively fixed to the movable block 303 and the bottom of the mounting groove 302. When the movable disk 201 moves the movable block 303, the first spring 402 is compressed at this time, so the movable block 303 always abuts against the inner wall of the mounting hole 103. When the movable block 303 moves to the side of the limiting groove 301, the first spring 402 causes the movable block 303 to enter the limiting groove 301. In addition, when the movable disk 201 moves the movable block 303 away from the limiting groove 301, the first spring 402 is compressed again.

[0028] The elastic component includes a second spring 601 sleeved on the side wall of the sliding rod 502, and the two ends of the second spring 601 are fixed to the moving disk 201 and the sleeve 501 respectively. When the moving disk 201 moves, the second spring 601 is compressed. When the moving disk 201 stops moving, under the action of the second spring 601, the moving block 303 on the moving disk 201 abuts against the side wall of the limiting groove 301 to prevent hydraulic oil from leaking out.

[0029] Working principle: During operation, when the tap breaks, the unscrewing part is inserted into the mounting hole 103. The cross-sectional shape of the unscrewing part can be triangular, square, etc. When the unscrewing part abuts against the moving plate 201, the unscrewing part pushes the moving plate 201 to move together. At this time, the second spring 601 is compressed, the volume of the hydraulic chamber 202 decreases, and the hydraulic oil in the hydraulic chamber 202 is squeezed into the U-shaped hole 7. After the hydraulic oil enters the U-shaped hole 7, the hydraulic oil pushes the abutment block 8 to move together. When the abutment block 8 abuts against the unscrewing part, the abutment block 8 stops moving. When all the abutment blocks 8 abut against the unscrewing part, the unscrewing part is inserted. In this way, unscrewing parts with different cross-sectional shapes can easily remove the broken tap, increasing versatility and compatibility.

[0030] When the movable disk 201 moves, it drives the movable block 303 in the mounting groove 302 to move together. At this time, under the action of the first spring 402, the movable block 303 abuts against the inner wall of the mounting hole 103. When the movable block 303 moves to one side of the limiting groove 301, under the action of the first spring 402, the movable block 303 inserts into the limiting groove 301. When the movable disk 201 drives the movable block 303 to continue moving, the inclined surface 304 abuts against the side wall of the limiting groove 301, and causes the movable block 303 to move into the mounting groove 302 until the movable block 303 is completely disengaged from the limiting groove 301. When the movable disk 201 continues to move, the movable block 303 repeats the above action until the movable disk 201 stops moving, to prevent the movable disk 201 from rebounding, and to make the abutment 8 more secure.

[0031] When the unspinning component stops moving, the moving disk 201 also stops moving. At this time, under the action of the second spring 601, the moving block 303 on the moving disk 201 abuts against the side wall of the limiting groove 301 to prevent hydraulic oil from leaking out. Then, the unspinning component is rotated, which can drive the broken tap out. After the broken tap is screwed out, the unspinning component can be pulled out from the mounting hole 103. The broken tap is then recycled.

[0032] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A tap that is easy to remove after breaking, comprising a tap shank (101) and a tap cutting edge (102) disposed on the tap shank (101), characterized in that: The tap shank (101) and tap cutting edge (102) are provided with mounting holes (103), and the mounting holes (103) are provided with a first clamping mechanism, which is used to clamp the unscrewing part. The first clamping mechanism includes multiple U-shaped holes (7) arranged in an array within the mounting hole (103), and each U-shaped hole (7) is slidably connected to a stop block (8). The mounting hole (103) is provided with a hydraulic mechanism, which is used to push the stop block (8) to move.

2. The tap that is easily removed after breaking, as described in claim 1, is characterized in that: The hydraulic mechanism includes a movable disc (201) slidably connected in the mounting hole (103). The movable disc (201) and the bottom of the tap cutting edge (102) form a hydraulic chamber (202). The hydraulic chamber (202) communicates with the U-shaped hole (7) and is filled with hydraulic oil. A second pressing mechanism is provided between the movable disc (201) and the hydraulic chamber (202) for pressing the movable disc (201). A limiting mechanism is provided between the movable disc (201) and the inner wall of the mounting hole (103) for limiting the movable disc (201).

3. The tap that is easily removed after breaking, as described in claim 2, is characterized in that: The second clamping mechanism includes a sleeve (501) fixedly connected to the bottom of the hydraulic chamber (202). A sliding rod (502) is inserted into the sleeve (501), and the end of the sliding rod (502) is fixed to the moving disk (201). An elastic element is provided between the sleeve (501) and the moving disk (201), and the elastic element is used to provide a squeezing force to the moving disk (201).

4. The tap that is easy to remove after breaking, as described in claim 2, is characterized in that: The limiting mechanism includes multiple arrayed mounting slots (302) on the side wall of the movable disk (201), and a movable block (303) is slidably connected in each mounting slot (302). The side wall of the movable block (303) is provided with an inclined surface (304). The inner wall of the mounting hole (103) is provided with multiple annularly arranged limiting slots (301). The side wall of the movable block (303) is provided with a reset mechanism, which is used to reset and move the movable block (303).

5. The tap that is easily removed after breaking, as described in claim 4, is characterized in that: The reset mechanism includes a movable rod (401) inserted into the bottom of the mounting groove (302), and the end of the movable rod (401) is fixed to the movable block (303). A first spring (402) is sleeved on the side wall of the movable rod (401), and the two ends of the first spring (402) are fixed to the movable block (303) and the bottom of the mounting groove (302) respectively.

6. A tap that is easy to remove after breaking, as described in claim 3, characterized in that: The elastic element includes a second spring (601) sleeved on the side wall of the sliding rod (502), and the two ends of the second spring (601) are fixed to the movable disk (201) and the sleeve (501) respectively.

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