Wrench special for fastening drill chuck

Abstract

The utility model belongs to the technical field of drill chucks, in particular to a special wrench for fastening a drill chuck, which comprises a limit ring, a hollow rod, a limit block, a support guide component, two support rods, a transmission component, a gear head and a limit pin, and the hollow rod is connected with the inner wall of the limiting hole through a supporting and guiding assembly, the limiting block is arranged in an arc shape and rotationally installed at the bottom end of the hollow rod, two strip-shaped openings which are symmetrically formed are formed in the hollow rod, and two supporting pins are rotationally installed on the inner wall of the hollow rod. The multifunctional drill chuck is reasonable in design, simple in structure and convenient to operate, can be used for fastening operation of the drill chuck and can also achieve the function of a drill key, a user does not need to use different tools to fasten the drill chuck and assemble and disassemble a drill bit, work efficiency is greatly improved, and meanwhile operation convenience of the user is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of drill chucks, in particular to a special wrench for tightening a drill chuck. Background Art

[0002] In mechanical processing and drilling operations, the tightening of the drill chuck is a very important step, which directly affects the accuracy and efficiency of drilling. Traditional drill chuck tightening operations often require the use of multiple tools, such as wrenches and drill keys, to operate separately, which has the disadvantages of poor operation convenience and low efficiency. Therefore, it is necessary to design a special wrench for tightening the drill chuck to solve the above problems.

[0003] The information disclosed in this background technology section is only intended to increase the understanding of the overall background of the present invention, and should not be regarded as acknowledging or suggesting in any form that the information constitutes the prior art already known to a person skilled in the art. Utility Model Content

[0004] The utility model aims to solve the shortcomings mentioned in the background technology and proposes a special wrench for tightening a drill chuck.

[0005] The above technical purpose of the utility model is achieved through the following technical solutions: a special wrench for tightening a drill chuck, comprising a limit ring, a hollow rod, a limit block, a support guide assembly, two support rods, a transmission assembly, a gear head and a limit pin;

[0006] The limit ring is provided with a mounting hole, the support and guide assembly is arranged in the limit hole, and the hollow rod is connected to the inner wall of the limit hole through the support and guide assembly, the limit block is arranged in an arc shape and is rotatably installed on the bottom end of the hollow rod, the hollow rod is provided with two symmetrically arranged strip openings, and two support pins are rotatably installed on the inner wall of the hollow rod, the two support rods are radially fixedly installed on the corresponding support pins and are respectively located in the corresponding strip openings for movability clamping, the transmission assembly is arranged on the two support pins, the limit block is provided with a circular opening, the gear head and the limit pin are both arranged in the circular opening, the transmission assembly extends into the circular opening and is connected to the gear head, and the limit pin is fixedly installed on the bottom side of the gear head and is coaxially arranged with the gear head.

[0007] Preferably, the support and guide assembly includes a support ring and two rotating pins, two coaxially arranged rotating pins are rotatably mounted on the inner wall of the mounting hole, and the same support ring is fixedly mounted on one end of the two rotating pins close to each other, and the support ring is rotatably mounted on the outside of the hollow rod.

[0008] Preferably, the transmission assembly includes a double-sided toothed plate and two transmission gears. The double-sided toothed plate is axially slidably installed in the hollow rod, and the two support pins are fixedly sleeved with transmission gears. The two transmission gears are meshed with the double-sided toothed plate, and the bottom end of the double-sided toothed plate extends into the circular opening and is fixedly connected to the gear head.

[0009] Preferably, a guide iron block slidably mounted in two strip-shaped openings is fixedly mounted on the top of the double-sided toothed plate, a magnet is embedded on the inner wall of the top side of the hollow rod, and the guide iron block is adsorbed and fixed on the bottom side of the magnet.

[0010] Preferably, a guide plate is fixedly installed inside the hollow rod, and the double-sided toothed plate is slidably connected to the guide plate.

[0011] Preferably, two annular grooves are formed on the inner wall of the limiting ring, and rubber rings are fixedly installed in the two annular grooves.

[0012] Preferably, a handle is fixedly mounted on the support rod.

[0013] Preferably, an anti-slip pad is fixedly adhered to the bottom side of the limiting block.

[0014] Preferably, the fixing sleeve on the hollow rod is provided with a handle sleeve.

[0015] The beneficial effect of the utility model is that after the limit ring is put on the drill chuck that needs to be tightened, the limit block is pressed against the drill chuck by controlling the hollow rod to deflect around the rotating pin in the supporting guide assembly, while the rubber ring and the outer peripheral side of the drill chuck are kept in a pressed state, and then the deflection of the hollow rod is continued to be controlled to realize the tightening operation of the drill chuck. At the same time, when the drill bit needs to be fixed on the drill chuck, the limit ring is put on the drill chuck and the limit pin is adjusted to the drill chuck. The drill bit is tightened or fixed by the drill chuck, and the drill key is used to control the drill chuck to tighten or disassemble the drill bit. The whole adjustment process is cumbersome and inconvenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1 This is a three-dimensional structural schematic diagram of a special wrench for tightening a drill chuck proposed by the utility model;

[0018] Figure 2 for Figure 1 A schematic diagram of a partial cross-sectional structure;

[0019] Figure 3 This is a partial cross-sectional structural schematic diagram of a special wrench for tightening a drill chuck proposed by the utility model;

[0020] Figure 4 It is a partial three-dimensional structural schematic diagram of a special wrench for tightening a drill chuck proposed by the utility model;

[0021] Figure 5 for Figure 1 Schematic diagram of the local three-dimensional structure;

[0022] Figure 6 The utility model is a three-dimensional structural schematic diagram of the hollow rod, the strip-shaped opening, the limit block and the circular opening.

[0023] In the figure: 1. limit ring; 11. rubber ring; 2. hollow rod; 21. support ring; 22. rotating pin; 23. handle; 24. limit block; 3. support pin; 31. support rod; 32. transmission gear; 33. double-sided gear plate; 34. guide iron block; 35. magnet; 36. guide plate; 37. gear head; 38. limit pin. DETAILED DESCRIPTION

[0024] The technical solution of the utility model will be described clearly and completely below in conjunction with specific embodiments. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of 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.

[0025] Reference Figure 1-6, a special wrench for tightening a drill chuck comprises a limit ring 1, a hollow rod 2, a limit block 24, two support rods 31, a gear head 37 and a limit pin 38. A mounting hole is provided on the limit ring 1, and two coaxially arranged rotating pins 22 are rotatably installed on the inner wall of the mounting hole. The two rotating pins 22 are fixedly installed with the same support ring 21 at one end close to each other. The support ring 21 is rotatably installed on the outer side of the hollow rod 2, which can provide support and guidance for the hollow rod 2, so as to facilitate the user to control the deflection and rotation operation of the hollow rod 2. The limit block 24 is arranged in an arc shape and is rotatably installed at the bottom end of the hollow rod 2. Two symmetrically arranged strip-shaped openings are provided on the hollow rod 2. Two supporting pins 3 are rotatably installed on the inner wall of the hollow rod 2. The two support rods 31 are respectively fixedly installed radially on the corresponding supporting pins 3 and are respectively located at the movable The movable card is connected in the corresponding strip-shaped opening, and a circular opening is opened on the limit block 24. The gear head 37 and the limit pin 38 are both arranged in the circular opening. A double-sided toothed plate 33 is axially slidably installed in the hollow rod 2. A transmission gear 32 is fixedly sleeved on the two support pins 3. The two transmission gears 32 are meshed with the double-sided toothed plate 33. The bottom end of the double-sided toothed plate 33 extends into the circular opening and is fixedly connected to the gear head 37, and the limit pin 38 is fixedly installed on the bottom side of the gear head 37 and is coaxially arranged with the gear head 37. When the control support rod 31 is deflected upward based on the support pin 3 as the center, the double-sided toothed plate 33 can be controlled to drive the gear head 37 and the limit pin 38 to pass through the circular opening and enter an adaptation state with the drill chuck, so that the drill chuck can adjust the tightness of the drill bit when the user controls the hollow rod 2 to rotate through the support rod 31.

[0026] In this embodiment, in order to provide limiting for the guide iron block 34 and the double-sided toothed plate 33 after the support rod 31 is received in the strip-shaped opening, and at the same time ensure that the double-sided toothed plate 33 can slide stably, the device is also provided with a guide iron block 34, a magnet 35 and a guide plate 36. The top end of the double-sided toothed plate 33 is fixedly installed with a guide iron block 34 slidably installed in the two strip-shaped openings, a magnet 35 is embedded on the top inner wall of the hollow rod 2, and the guide iron block 34 is adsorbed and fixed on the bottom side of the magnet 35, a guide plate 36 is fixedly installed in the hollow rod 2, and the double-sided toothed plate 33 is slidably connected to the guide plate 36.

[0027] In this embodiment, in order to increase the friction between the limit ring 1 and the drill chuck to prevent sliding when the drill chuck is loosened or tightened, the device is further provided with two rubber rings 11. Two annular grooves are provided on the inner wall of the limit ring 1, and rubber rings 11 are fixedly installed in the two annular grooves.

[0028] In this embodiment, in order to facilitate the user to operate the support rod 31, the device further has a handle fixedly mounted on the support rod 31. The provision of the handle allows the user to operate the support rod 31 more conveniently and quickly.

[0029] In this embodiment, in order to ensure that the limit block 24 maintains a good abutment effect with the outer peripheral side of the drill chuck when the user controls the hollow rod 2 to deflect based on the rotating pin 22, and to prevent the limit block 24 from scratching the drill chuck, the device is also provided with an anti-slip pad fixedly adhered to the bottom side of the limit block 24.

[0030] In this embodiment, in order to facilitate the user to operate the hollow rod 2 , the device is further provided with a handle 23 fixedly sleeved on the hollow rod 2 .

[0031] Working principle: When in use, first put the limit ring 1 on the drill chuck, and then control the hollow rod 2 to deflect around the rotating pin 22, so that the limit block 24 can be controlled to drive the anti-skid pad on its bottom side to press against the outer peripheral side of the drill chuck, and at the same time, the rubber ring and the drill chuck remain in a tight state, so that the tightness of the drill chuck can be adjusted while continuing to control the deflection of the hollow rod 2. When the drill bit needs to be fixed on the drill chuck or the drill bit needs to be released from the drill chuck, the position of the limit pin 38 is adjusted to make it coaxial and aligned with the socket on the drill chuck, and then the support rod 31 is moved away from the limit ring 1 through the handle. Directional deflection. During this process, the meshing action of the transmission gear 32 and the double-sided toothed plate 33 will cause the gear head 37 and the limit pin 38 to move together until they are in a matching state with the drill chuck, and then the hollow rod 2 is controlled to rotate by the support rod 31. Since the gear head 37 and the limit pin 38 are already in a matching state with the drill chuck, this rotation action will directly act on the drill chuck to achieve the clamping or loosening operation of the drill bit. The whole process does not require the use of other wrenches or other tools. The above operation can be achieved by using the special wrench for tightening the drill chuck proposed by the utility model. The operation is simple and quick, which greatly improves the work efficiency.

[0032] The above is a detailed introduction to a special wrench for tightening a drill chuck provided by the utility model. This article uses specific embodiments to explain the principle and implementation method of the utility model. The description of the above embodiments is only used to help understand the method and core idea of ​​the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. A special wrench for tightening a drill chuck, characterized in that: It comprises a limiting ring (1), a hollow rod (2), a limiting block (24), a supporting guide assembly, two supporting rods (31), a transmission assembly, a gear head (37) and a limiting pin (38); The limiting ring (1) is provided with a mounting hole, the supporting guide assembly is arranged in the limiting hole, and the hollow rod (2) is connected to the inner wall of the limiting hole through the supporting guide assembly, the limiting block (24) is arranged in an arc shape and is rotatably mounted on the bottom end of the hollow rod (2), the hollow rod (2) is provided with two symmetrically arranged strip openings, two supporting pins (3) are rotatably mounted on the inner wall of the hollow rod (2), two support rods (31) are respectively radially fixedly mounted on the corresponding supporting pins (3) and are respectively located in the corresponding strip openings for movably clamping, the transmission assembly is arranged on the two supporting pins (3), the limiting block (24) is provided with a circular opening, the gear head (37) and the limiting pin (38) are both arranged in the circular opening, the transmission assembly extends into the circular opening and is connected to the gear head (37), and the limiting pin (38) is fixedly mounted on the bottom side of the gear head (37) and is coaxially arranged with the gear head (37).

2. A special wrench for tightening a drill chuck according to claim 1, characterized in that: The support guide assembly comprises a support ring (21) and two rotating pins (22); two coaxially arranged rotating pins (22) are rotatably mounted on the inner wall of the mounting hole; one end of the two rotating pins (22) close to each other is fixedly mounted with the same support ring (21); and the support ring (21) is rotatably mounted on the outside of the hollow rod (2).

3. A special wrench for tightening a drill chuck according to claim 1, characterized in that: The transmission assembly comprises a double-sided toothed plate (33) and two transmission gears (32); the double-sided toothed plate (33) is axially slidably mounted in the hollow rod (2); the transmission gears (32) are fixedly sleeved on the two support pins (3); the two transmission gears (32) are meshed with the double-sided toothed plate (33); the bottom end of the double-sided toothed plate (33) extends into the circular opening and is fixedly connected to the gear head (37).

4. A special wrench for tightening a drill chuck according to claim 3, characterized in that: A guide iron block (34) is fixedly mounted on the top of the double-sided toothed plate (33) and is slidably mounted in the two strip-shaped openings. A magnet (35) is embedded on the inner wall of the top side of the hollow rod (2), and the guide iron block (34) is adsorbed and fixed on the bottom side of the magnet (35).

5. A special wrench for tightening a drill chuck according to claim 3, characterized in that: A guide plate (36) is fixedly installed inside the hollow rod (2), and the double-sided toothed plate (33) is slidably connected to the guide plate (36).

6. A special wrench for tightening a drill chuck according to claim 1, characterized in that: Two annular grooves are provided on the inner wall of the limiting ring (1), and rubber rings (11) are fixedly installed in the two annular grooves.

7. A special wrench for tightening a drill chuck according to claim 1, characterized in that: A handle is fixedly mounted on the support rod (31).

8. A special wrench for tightening a drill chuck according to claim 1, characterized in that: An anti-slip pad is fixedly adhered to the bottom side of the limiting block (24).

9. A special wrench for tightening a drill chuck according to claim 1, characterized in that: A handle sleeve (23) is fixedly sleeved on the hollow rod (2).

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