Shape-adjustable bit

Abstract

The utility model relates to the technical field of screwdriver bit adjustment, and discloses a shape-adjustable screwdriver bit which comprises a shaft body, the far sides of the shaft body are fixedly connected with clamping columns, the far sides of the two clamping columns are fixedly connected with connecting columns, the far sides of the two connecting columns are fixedly connected with two hexagonal column bodies, and the hexagonal column bodies are fixedly connected with the shaft body. Two flat screwdriver heads are fixedly connected to the sides, far away from each other, of the two hexagonal cylinders, arc-shaped frames are fixedly connected to the left sides and the right sides of every two flat screwdriver heads, adjusting assemblies are arranged in the hexagonal cylinders, and sliding blocks are fixedly connected to the front sides and the rear sides of the adjusting assemblies. According to the utility model, the trapezoid block receives the reset force of the strong spring and is clamped in the square opening, so that the adjustment and conversion of the flat bit shape and the cross bit shape of the bit can be quickly completed, and then the condition that the bit with the corresponding shape is found by stopping the work is avoided, and the time of stopping the work is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of bit adjustment, in particular to a bit with adjustable shape. Background Art

[0002] A bit is a tool accessory designed to be used in conjunction with electric or manually driven tools for tightening or unscrewing various types of screws and bolts. It is usually made in a shape that matches a specific screw head, such as flat head, cross head, hexagon or other special shapes, to meet different working requirements. The bit can be directly installed on the handle of a screwdriver, a rotary tool or an electric drill / driver, and is a key link to achieve precise and efficient work.

[0003] After retrieval, the Chinese patent document publication number: CN210232841U, discloses a bit, which includes a head, a connecting part and a fixing part, and the head is connected and fixed to the fixing part through the connecting part; wherein, it further includes a twisting part, the twisting part is connected and fixed to the other end of the fixing part, the twisting part is flat, and the twisting part is twisted and formed; the utility model has the characteristics of buffering effect, convenient processing, high structural strength, etc.

[0004] In view of the above related technologies, the inventor believes that the above patent mentions in the specific implementation manner: "The double - headed bit includes two heads 1, two connecting parts 2, two fixing parts 3 and a twisting part 4. The two fixing parts 3 are connected through the twisting part 4, and the bit is symmetrically arranged. The two heads 1, the two connecting parts 2, the two fixing parts 3 and the twisting part 4 are all coaxially arranged, ensuring the stability of the overall rotation". Although the above patent increases the overall stability through the double - headed form, however, in the specific use process, a flat bit and a cross bit are required. At this time, it is necessary to stop work to find the corresponding shaped bit, resulting in a loss of time. Therefore, in view of the above deficiencies, a bit with adjustable shape is proposed. Content of the Utility Model

[0005] The purpose of the utility model is to solve the deficiencies existing in the prior art, and to propose a bit with adjustable shape, aiming to improve the problem that in the prior art, when facing flat screws and cross screws, it is necessary to stop work to replace the bit, consuming a lot of time.

[0006] To achieve the above purpose, the utility model provides the following technical solutions:

[0007] A shape-adjustable bit, comprising a shaft body. Clamping columns are fixedly connected to both opposite sides of the shaft body. Connecting columns are fixedly connected to the opposite sides of the two clamping columns. Two hexagonal columns are fixedly connected to the opposite sides of the two connecting columns. Two flat bits are fixedly connected to the opposite sides of the two hexagonal columns. Arc-shaped frames are fixedly connected to the left and right sides of each two flat bits. An adjusting assembly is arranged inside the hexagonal column. Sliding blocks are fixedly connected to the front and rear sides of the adjusting assembly. Strip-shaped openings are formed at both ends of the inner part of the hexagonal column in the front and rear directions. A plurality of square openings are formed at both ends of the inner part of the hexagonal column in the left and right directions. Strip-shaped plates are slidably connected to both ends of the hexagonal column. Pressing plates are fixedly connected to the opposite sides of each two strip-shaped plates. Trapezoidal blocks are slidably connected to the left and right parts of the adjacent ends of the two adjusting assemblies. A reset assembly is arranged on the adjacent sides of each two trapezoidal blocks.

[0008] As a further description of the above technical solution:

[0009] The plurality of reset assemblies each include a sliding plate, and the adjacent sides of each two trapezoidal blocks are respectively fixedly connected to the opposite sides of each two sliding plates.

[0010] As a further description of the above technical solution:

[0011] The adjusting assembly includes side bits, the outer part of the side bits is slidably connected to the inner wall of the hexagonal column, and circular plates are fixedly connected to the adjacent sides of the two side bits.

[0012] As a further description of the above technical solution:

[0013] The adjacent sides of each two sliding blocks are respectively fixedly connected to the front and rear sides of one of the circular plates, and the outer part of the sliding block is slidably connected to the inside of the strip-shaped opening.

[0014] As a further description of the above technical solution:

[0015] Sliding columns are fixedly connected to the adjacent sides of each two sliding plates, and a strong spring is sleeved on the outer part of the sliding column.

[0016] As a further description of the above technical solution:

[0017] The opposite sides of each two strong springs are respectively fixedly connected to the adjacent sides of each two sliding plates.

[0018] As a further description of the above technical solution:

[0019] The outer part of the trapezoidal block is slidably connected to the inner wall of the square opening, and the outer parts of each two strip-shaped plates are respectively slidably connected to the inner walls of both ends of one of the hexagonal columns.

[0020] As a further description of the above technical solution:

[0021] The adjacent sides of every two of the flat bits are slidably connected to the outside of one of the side bits, and the adjacent sides of every two of the arc-shaped frames are slidably connected to the outside of one of the side bits.

[0022] The utility model has the following beneficial effects:

[0023] In the utility model, by applying a reverse force to the trapezoidal block for resetting, and then releasing the pressure applied to the pressing plate, at this time, the trapezoidal block will be subjected to the reset force of the strong spring and be engaged inside the square opening, so as to quickly complete the adjustment and conversion of the flat bit and cross bit shapes of the bit, and then avoid stopping work to find the corresponding shaped bit, thereby saving the time of stopping work. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a three-dimensional view of an adjustable-shaped bit proposed by the utility model;

[0025] Figure 2 is a schematic structural view of the flat bit of an adjustable-shaped bit proposed by the utility model;

[0026] Figure 3 is a schematic internal structural view of the hexagonal column of an adjustable-shaped bit proposed by the utility model;

[0027] Figure 4 is a schematic internal structural view of the circular plate of an adjustable-shaped bit proposed by the utility model.

[0028] LEGEND DESCRIPTION:

[0029] 1. Shaft body; 2. Clamping post; 3. Connecting post; 4. Hexagonal column; 5. Flat bit; 6. Arc-shaped frame; 7. Side bit; 8. Circular plate; 9. Sliding block; 10. Strip-shaped opening; 11. Square opening; 12. Strip-shaped plate; 13. Pressing plate; 14. Sliding plate; 15. Sliding post; 16. Strong spring; 17. Trapezoidal block. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0030] Next, the technical solutions in the embodiments of the utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the utility model.

[0031] Refer to Figure 1 -Figure 3 , an embodiment provided by the present utility model: a bit with adjustable shape, including a shaft body 1, which is the main part of the whole device. On the opposite sides of the shaft body 1, clamping columns 2 are fixedly connected. The clamping columns 2 are used to fix the bit on power tools, such as electric screwdrivers or rotary tools. On the opposite sides of the two clamping columns 2, connecting columns 3 are fixedly connected. On the opposite sides of the two connecting columns 3, two hexagonal cylinders 4 are fixedly connected. The hexagonal cylinders 4 provide the structural stability and torque transmission efficiency of the bit. On the opposite sides of the two hexagonal cylinders 4, two flat bits 5 are fixedly connected. These flat bits 5 are the parts that directly contact the screws and are used to tighten or unscrew flat-notch screws. On the left and right sides of every two flat bits 5, arc-shaped frames 6 are fixedly connected. The arc-shaped frames 6 enhance the structural integrity of the flat bits 5 and provide additional support during work;

[0032] An adjusting assembly is arranged inside the hexagonal cylinder 4. The adjusting assembly includes side bits 7, which are used to cross with the flat bits 5 to form a cross shape. On the adjacent sides of every two flat bits 5, they are slidably connected to the outside of one of the side bits 7. On the adjacent sides of every two arc-shaped frames 6, they are slidably connected to the outside of one of the side bits 7. The outside of the side bit 7 is slidably connected to the inner wall of the hexagonal cylinder 4. Through the limitation of the hexagonal cylinder 4, the arc-shaped frame 6 and the flat bit 5, the side bit 7 can slide vertically. On the adjacent sides of the two side bits 7, circular plates 8 are fixedly connected. The circular plates 8 are pushed to slide by the side bits 7. On the front and back sides of the adjusting assembly, sliding blocks 9 are fixedly connected. At the front and back ends inside the hexagonal cylinder 4, strip-shaped openings 10 are opened, which are used to limit the movement space of the sliding blocks 9;

[0033] On the adjacent sides of every two sliding blocks 9, they are respectively fixedly connected to the front and back sides of one of the circular plates 8. The sliding blocks 9 are driven to slide by the circular plates 8. The outside of the sliding blocks 9 is slidably connected to the inside of the strip-shaped openings 10. At the left and right ends inside the hexagonal cylinder 4, a plurality of square openings 11 are opened, which are used to engage with trapezoidal blocks 17. At the left and right ends of the hexagonal cylinder 4, strip-shaped plates 12 are slidably connected. The hexagonal cylinder 4 is pushed to slide by the sliding of the strip-shaped plates 12. On the opposite sides of every two strip-shaped plates 12, pressing plates 13 are fixedly connected. The strip-shaped plates 12 are pushed to slide by pressing the pressing plates 13 with hands. On the left and right parts of the adjacent ends of the two adjusting assemblies, trapezoidal blocks 17 are slidably connected. The outside of the trapezoidal blocks 17 is slidably connected to the inner wall of the square openings 11, which is used to limit and fix the trapezoidal blocks 17. The outside of every two strip-shaped plates 12 is respectively slidably connected to the inner walls of the left and right ends of one of the hexagonal cylinders 4.

[0034] Refer to Figure 3 - Figure 4, a reset component is provided on the adjacent sides of every two trapezoidal blocks 17. The multiple reset components each include a sliding plate 14. The adjacent sides of every two trapezoidal blocks 17 are respectively fixedly connected to the opposite sides of every two sliding plates 14. When the trapezoidal blocks 17 are stressed, they push the sliding plates 14 to slide. A sliding column 15 is fixedly connected to the adjacent sides of every two sliding plates 14, thereby pushing the sliding column 15 to slide. A strong spring 16 is sleeved outside the sliding column 15. The opposite sides of every two strong springs 16 are respectively fixedly connected to the adjacent sides of every two sliding plates 14 to limit and fix the strong springs 16, so that the strong springs 16 can be evenly stressed.

[0035] Working principle: When using the device, when facing a cross screw, the cross formed by the flat bit 5 and the side bit 7 is used to assemble and disassemble the cross screw. When facing a flat screw, by pushing the pressing plate 13, the sliding plate 14 is then pushed to slide and squeeze the trapezoidal block 17. At this time, the trapezoidal block 17 will shrink inside the inner wall of the circular plate 8 under the pressure. Due to the inclined design of the trapezoidal block 17, the side bit 7 can slide and drive the trapezoidal block 17 to slide. After the flat bit 5 is exposed alone, at this time the trapezoidal block 17 is pushing the sliding plate 14 to slide, and then the sliding plate 14 will push the sliding column 15 to slide and squeeze the strong spring 16, so that the strong spring 16 can store elastic potential energy, and then give the trapezoidal block 17 a force in the opposite direction to reset. Then release the pressure applied to the pressing plate 13. At this time, the trapezoidal block 17 will be subjected to the reset force of the strong spring 16 and be engaged inside the square opening 11, so as to quickly complete the adjustment and conversion of the flat bit 5 and the cross bit shapes of the bit, and then avoid stopping work to find the corresponding shaped bit, thereby saving the time of stopping work.

[0036] Finally, it should be noted that the above are only the preferred embodiments of the present invention and are not used to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A shape-adjustable screwdriver bit, comprising a shaft body (1), characterized in that: The far side of the shaft body (1) is fixedly connected to a clamping column (2), the far side of the two clamping columns (2) is fixedly connected to a connecting column (3), the far side of the two connecting columns (3) is fixedly connected to two hexagonal columns (4), the far side of the two hexagonal columns (4) is fixedly connected to two flat screwdriver bits (5), the left and right sides of each of the two flat screwdriver bits (5) are fixedly connected to an arc frame (6), the inside of the hexagonal columns (4) is provided with an adjustment component, and the front and rear sides of the adjustment component are fixedly connected to a sliding The hexagonal column (4) is provided with a strip opening (10) at both the front and rear ends, and a plurality of square openings (11) are provided at both the left and right ends. The left and right ends of the hexagonal column (4) are slidably connected with a strip plate (12), and the far sides of each two strip plates (12) are fixedly connected with a pressing plate (13). The left and right parts of the adjacent ends of the two adjustment components are slidably connected with a trapezoidal block (17), and the adjacent sides of each two trapezoidal blocks (17) are provided with a reset component.

2. The shape-adjustable screwdriver bit according to claim 1, characterized in that: The plurality of reset assemblies all comprise a sliding plate (14), and the adjacent sides of each two of the trapezoidal blocks (17) are respectively fixedly connected to the distant sides of each two of the sliding plates (14).

3. The shape-adjustable screwdriver bit according to claim 1, characterized in that: The adjustment assembly comprises a side screwdriver bit (7), the outside of which is slidably connected to the inner wall of the hexagonal column (4), and a circular plate (8) is fixedly connected to the adjacent sides of two side screwdriver bits (7).

4. The shape-adjustable screwdriver bit according to claim 3, characterized in that: The adjacent sides of each two sliding blocks (9) are respectively fixedly connected to the front and rear sides of one of the circular plates (8), and the outside of the sliding blocks (9) are slidably connected to the inside of the strip-shaped opening (10).

5. The shape-adjustable screwdriver bit according to claim 2, characterized in that: A sliding column (15) is fixedly connected to the adjacent side of each two sliding plates (14), and a strong spring (16) is sleeved on the outside of the sliding column (15).

6. The shape-adjustable screwdriver bit according to claim 5, characterized in that: The far sides of each two strong springs (16) are respectively fixedly connected to the near sides of each two sliding plates (14).

7. The shape-adjustable screwdriver bit according to claim 2, characterized in that: The outside of the trapezoidal block (17) is slidably connected to the inner wall of the square opening (11), and the outside of each of the two strip plates (12) is slidably connected to the inner walls of the left and right ends of one of the hexagonal columns (4).

8. The shape-adjustable screwdriver bit according to claim 3, characterized in that: The adjacent sides of each two flat screwdriver bits (5) are slidably connected to the outside of one of the side screwdriver bits (7), and the adjacent sides of each two arc-shaped frames (6) are slidably connected to the outside of one of the side screwdriver bits (7).

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