Disassembling and assembling tool for drill chuck

Abstract

The utility model relates to a drill chuck disassembling and assembling tool which comprises a cylindrical annular sleeve, a circular-arc-shaped inserting opening is formed in the sleeve wall of one side of the sleeve, a circular-arc-shaped clamping block is inserted into the inserting opening, and gaps are formed between the two sides of the clamping block and the two side walls of the inserting opening respectively. A pin shaft is inserted and fixed on the clamping block, and two ends of the pin shaft are inserted on the sleeve; a handle is arranged on one side of the sleeve and fixedly connected to the outer wall of the clamping block. The lever principle is adopted in the handle of the tool, large torque can be provided, enough pressing acting force is provided for the clamping block, and therefore a user can conveniently assemble and disassemble a drill bit on the drill chuck through small acting force.

Description

Technical field:

[0001] The utility model relates to the technical field of drill chuck disassembly and assembly devices, and more specifically to a drill chuck disassembly and assembly tool. Background technology:

[0002] Drill chucks are mainly used for home DC and AC electric drills. Their biggest advantage is that they are easy to lock. Just hold the front and back sleeves of the chuck and tighten them. Depending on the internal structure of the drill chuck, different electric drills are suitable for use. The drill chuck of some current comprises a drill sleeve, a clamping head in the drill sleeve and a positioning sleeve arranged on the upper part of the drill sleeve, the lower end face of the positioning sleeve is formed with a gear ring, the outer wall of the drill sleeve is formed with a plurality of positioning holes, and the drill sleeve can be rotated by a drill chuck wrench to realize the contraction and expansion of the inner clamping head; and the structure of the drill chuck wrench comprises a T-shaped handle, one end of the handle is formed with a gear head in the shape of a bevel gear, the end of the gear head is provided with a positioning column head, the positioning column head is inserted into the positioning hole of the drill sleeve, the gear head is meshed with the gear ring on the positioning sleeve, and the rotation of the drill sleeve is realized by rotating the drill chuck wrench; but the teeth of the gear head on the drill chuck wrench are easily damaged, and the drill sleeve cannot be effectively locked, resulting in the clamping head in the drill sleeve being unable to provide sufficient locking force, thereby causing the drill bit to slip frequently; therefore, it is necessary to design a tool that can effectively realize the locking and loosening of the drill chuck. Utility model content:

[0003] The utility model aims to solve the problems in the prior art and provides a drill chuck disassembly and assembly tool, which uses the lever force of the handle to enable the sleeve and the clamping block to effectively cooperate with each other to clamp the drill chuck, thereby facilitating the installation and removal of the drill bit on the drill chuck.

[0004] A drill chuck disassembly and assembly tool comprises a cylindrical ring sleeve, a circular arc-shaped socket is formed on the wall of one side of the sleeve, a circular arc-shaped clamping block is inserted in the socket, and gaps are respectively provided between the two sides of the clamping block and the two side walls of the socket; a pin shaft is inserted and fixed on the clamping block, and the two ends of the pin shaft are inserted on the sleeve;

[0005] A handle is provided on one side of the sleeve, and the handle is fixedly connected to the outer wall of the clamping block.

[0006] Preferably, the inner wall of the clamping block and the inner wall of the sleeve are in the same cylindrical surface.

[0007] Preferably, a plurality of movable tooth grooves are formed on the inner wall of the clamping block, and movable pressure teeth are formed between the movable tooth grooves; a plurality of fixed tooth grooves are formed on the inner wall of the sleeve opposite to the socket, and fixed pressure teeth are formed between the fixed tooth grooves.

[0008] Preferably, a cylindrical connector is formed on the outer wall of the clamping block, a socket is formed on the connector, and a threaded hole is formed on the bottom surface of the socket;

[0009] The handle comprises a cylindrical handle rod, one end of the handle rod close to the clamping block is inserted into the jack of the connector and is formed with a stud, the stud is screwed into the threaded hole of the clamping block, and the end of the stud is pressed against the pin.

[0010] Preferably, the diameter of the jack on the connector is equal to the diameter of the handle, and a gap is provided between the end of the handle close to one end of the clamping block and the bottom surface of the jack.

[0011] Preferably, an extended handle sleeve is inserted into the handle rod, and a retaining ring is formed on the inner wall of the extended handle sleeve near one end of the clamping block, the inner wall of the retaining ring abuts against the outer wall of the handle rod, and a circular limit stop block opposite to the retaining ring is fixedly connected to the end of the handle rod away from the clamping block, and the limit stop block is inserted in the extended handle sleeve.

[0012] Preferably, the length of the extended handle sleeve is greater than the length of the handle rod, and a rubber seal is inserted and fixed to one end of the extended handle sleeve away from the clamping block;

[0013] The diameter of the outer wall of the limit stopper is greater than the diameter of the outer wall of the handle rod.

[0014] The beneficial effects of the utility model are:

[0015] 1. The handle of this tool adopts the lever principle, which can provide a large torque and provide sufficient holding force for the clamping block, so that the user can easily install and remove the drill bit on the drill chuck with a small force.

[0016] 2. The tool has a simple and compact structure and a relatively low manufacturing cost, which can also reduce the failure rate and maintenance cost during use.

[0017] 3. This tool can be used to adapt to drill chucks of different specifications and sizes, and has good versatility and adaptability.

[0018] 4. The tool will not damage the teeth of the drill chuck during use. Compared with the traditional wrench, the tool of the present invention locks or loosens the drill chuck by applying torque instead of directly acting on the teeth, thereby avoiding the problem of damage to the teeth. Description of the drawings:

[0019] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0020] Figure 2 It is a structural schematic diagram of the utility model in a front view;

[0021] Figure 3 It is a half-section schematic diagram of the utility model in the side view direction.

[0022] In the figure: 1. sleeve; 11. socket; 12. fixed tooth groove; 2. clamping block; 21. connector; 22. socket; 23. threaded hole; 24. movable tooth groove; 3. handle; 31. handle rod; 311. stud; 32. extended handle sleeve; 321. retaining ring; 33. limit stopper; 34. rubber head; 4. pin shaft. Specific implementation method:

[0023] Example: See Figures 1 to 3 As shown, a drill chuck disassembly and assembly tool comprises a cylindrical ring-shaped sleeve 1, a circular arc-shaped socket 11 is formed on the wall of one side of the sleeve 1, a circular arc-shaped clamping block 2 is inserted in the socket 11, and gaps are respectively provided between the two sides of the clamping block 2 and the two side walls of the socket 11; a pin shaft 4 is inserted and fixed on the clamping block 2, and both ends of the pin shaft 4 are inserted on the sleeve 1; the clamping block 2 rotates around the pin shaft 4 in the socket 11 and can extend out of the inner wall of the sleeve 1 when rotating;

[0024] A handle 3 is provided on one side of the sleeve 1 , and the handle 3 is fixed to the outer wall of the clamping block 2 .

[0025] The inner wall of the clamping block 2 and the inner wall of the sleeve 1 are in the same cylindrical surface. When the clamping block 2 is not rotated, the clamping block 2 is equivalent to being hidden in the sleeve 1, so that the sleeve 1 is conveniently mounted on the drill chuck.

[0026] A plurality of movable tooth grooves 24 are formed on the inner wall of the clamping block 2, and dynamic pressure teeth are formed between the movable tooth grooves 24. A plurality of fixed tooth grooves 12 are formed on the inner wall of the sleeve 1 opposite to the socket 11, and fixed pressure teeth are formed between the fixed tooth grooves 12. Adding fixed pressure teeth and dynamic pressure teeth can increase the friction between the clamping block 2 and the inner wall of the sleeve 1 and the drill chuck.

[0027] A cylindrical connector 21 is formed on the outer wall of the clamping block 2, a plug hole 22 is formed on the connector 21, and a threaded hole 23 is formed on the bottom surface of the plug hole 22;

[0028] The handle 3 includes a cylindrical handle rod 31, and one end of the handle rod 31 close to the clamping block 2 is inserted into the socket 22 of the connecting head 21 and is formed with a stud 311. The stud 311 is screwed into the threaded hole 23 of the clamping block 2, and the end of the stud 311 is pressed against the pin 4. The handle rod 31 is fixedly connected to the clamping block 2 by screwing, and the clamping block 2 and the pin 4 can be fixedly connected. The handle rod 31 is arranged in the connecting head 21 to avoid deformation or breakage of the stud 311.

[0029] The diameter of the insertion hole 22 on the connector 21 is equal to the diameter of the handle 31 , and a gap is provided between the end of the handle 31 close to one end of the clamping block 2 and the bottom surface of the insertion hole 22 .

[0030] An extended handle sleeve 32 is inserted on the handle rod 31, and a retaining ring 321 is formed on the inner wall of the extended handle sleeve 32 close to the clamping block 2. The inner wall of the retaining ring 321 abuts against the outer wall of the handle rod 31, and a circular limit stopper 33 opposite to the retaining ring 321 is fixedly connected to the end of the handle rod 31 away from the clamping block 2. The limit stopper 33 is inserted in the extended handle sleeve 32, and the main body of the limit stopper 33 is circular, with a screw rod provided on the end face of one end and a limit countersunk hole formed on the other end. The limit stopper 33 is fixedly connected to the handle rod 31 by screwing, and the handle 3 can be a telescopic structure composed of the handle rod 31 and the extended handle sleeve 32.

[0031] The length of the extended handle sleeve 32 is greater than that of the handle rod 31 , and a rubber seal 34 is inserted and fixed to one end of the extended handle sleeve 32 away from the clamping block 2 ;

[0032] The diameter of the outer wall of the limit stopper 33 is greater than the diameter of the outer wall of the handle rod 31 .

[0033] Working principle: The utility model is a drill chuck disassembly and assembly tool. When in use, the sleeve 1 of the tool is sleeved on the drill chuck, and then the positioning sleeve 1 is held in one hand, and the handle 3 is rotated with the other hand. The clamping block 2 is driven by the handle 3 to rotate and extend out of the inner wall of the positioning sleeve 1, and then the inner wall of the positioning sleeve 1 is cooperated to realize that the positioning sleeve 1 and the clamping block 2 are pressed against the outer wall of the drill chuck (the positioning sleeve 1, the clamping block 2 and the drill chuck are connected together mainly through friction force), and then the sleeve 1 is released, and the handle 3 is pressed. The handle 3 and the clamping block 2 form a lever structure, and the pin 4 is the fulcrum on the lever. A small force can be used to generate a large torque, thereby realizing the loosening and locking of the drill chuck, which is convenient for the installation and disassembly of the drill bit.

[0034] The embodiments are used to illustrate the present invention, but not to limit the present invention. Any person skilled in the art may modify the embodiments without violating the spirit and scope of the present invention, and therefore the scope of protection of the present invention shall be as set forth in the claims of the present invention.

Claims

1. A drill chuck disassembly and assembly tool, comprising a cylindrical ring-shaped sleeve (1), characterized in that: A circular arc-shaped socket (11) is formed on the wall of one side of the sleeve (1), and a circular arc-shaped clamping block (2) is inserted into the socket (11), and gaps are respectively provided between the two sides of the clamping block (2) and the two side walls of the socket (11); a pin shaft (4) is inserted and fixed on the clamping block (2), and the two ends of the pin shaft (4) are inserted into the sleeve (1); A handle (3) is provided on one side of the sleeve (1), and the handle (3) is fixedly connected to the outer wall of the clamping block (2).

2. A drill chuck disassembly and assembly tool according to claim 1, characterized in that: The inner wall of the clamping block (2) and the inner wall of the sleeve (1) are within the same cylindrical surface.

3. A drill chuck disassembly and assembly tool according to claim 2, characterized in that: A plurality of movable tooth grooves (24) are formed on the inner wall of the clamping block (2), and movable pressure teeth are formed between the movable tooth grooves (24); a plurality of fixed tooth grooves (12) are formed on the inner wall of the sleeve (1) opposite to the socket (11), and fixed pressure teeth are formed between the fixed tooth grooves (12).

4. The drill chuck disassembly and assembly tool according to claim 1, characterized in that: A cylindrical connector (21) is formed on the outer wall of the clamping block (2), a plug hole (22) is formed on the connector (21), and a threaded hole (23) is formed on the bottom surface of the plug hole (22); The handle (3) comprises a cylindrical handle rod (31), one end of the handle rod (31) close to the clamping block (2) is inserted into the insertion hole (22) of the connecting head (21) and is formed with a stud (311), the stud (311) is screwed into the threaded hole (23) of the clamping block (2), and the end of the stud (311) is pressed against the pin shaft (4).

5. A drill chuck disassembly and assembly tool according to claim 4, characterized in that: The diameter of the insertion hole (22) on the connector (21) is equal to the diameter of the handle (31), and a gap is provided between the end of the handle (31) close to one end of the clamping block (2) and the bottom surface of the insertion hole (22).

6. A drill chuck disassembly and assembly tool according to claim 4, characterized in that: An extended handle sleeve (32) is inserted into the handle rod (31); a retaining ring (321) is formed on the inner wall of the extended handle sleeve (32) at one end close to the clamping block (2); the inner wall of the retaining ring (321) abuts against the outer wall of the handle rod (31); a circular limit stopper (33) opposite to the retaining ring (321) is fixedly connected to the end of the handle rod (31) away from the clamping block (2); the limit stopper (33) is inserted into the extended handle sleeve (32).

7. A drill chuck disassembly and assembly tool according to claim 6, characterized in that: The length of the extended handle sleeve (32) is greater than the length of the handle rod (31), and a rubber sealing head (34) is inserted and fixed at one end of the extended handle sleeve (32) away from the clamping block (2); The diameter of the outer wall of the limit stopper (33) is greater than the diameter of the outer wall of the handle rod (31).

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