A screwdriver rod capable of automatically adjusting angle

Abstract

This utility model relates to the field of screwdriver shanks and discloses an automatically adjustable screwdriver shank, including a screwdriver shank with a screwdriver head rotatably mounted at its bottom end. An opening groove is formed at the bottom of the screwdriver shank, and a pin is rotatably connected between the inner walls of the two sides of the opening groove. An adjusting ring is mounted on the pin. A movable block is fixedly mounted on the side of the screwdriver shank near the center. It also includes an angle adjustment component. Addressing the common problem of insufficient locking mechanisms in existing adjustable-angle screwdrivers, this device achieves effective locking after angle adjustment by designing a locking plate that slides into a notch on the adjusting ring. This design ensures that the screwdriver head will not rotate accidentally during operation, thus guaranteeing the accuracy and efficiency of the operation.

Description

Technical Field

[0001] This utility model relates to the field of screwdriver rods, specifically a screwdriver rod with an automatically adjustable angle. Background Technology

[0002] Screwdrivers, as a common hand tool, are widely used in assembly, repair, and other tasks. Traditional screwdrivers have a relatively simple design, typically consisting of only a screwdriver shaft and a screwdriver head fixed to one end. Users manually rotate the shaft to drive the head to tighten or loosen screws. However, in practical applications, it is often necessary to deal with screws of different sizes and types, as well as working environments with varying angles and spaces. This places higher demands on the functionality and flexibility of screwdrivers. To meet these needs, some screwdriver designs with adjustable head angles have emerged on the market. These designs typically use complex mechanical structures to adjust the angle of the head relative to the shaft, allowing users to use the screwdriver more conveniently in confined spaces or when specific angles are required. However, these designs often suffer from problems such as complex structure, inconvenient operation, high cost, and insufficient reliability. Furthermore, some existing adjustable-angle screwdrivers lack an effective locking mechanism to maintain the head at the desired angle after adjustment, which may lead to accidental rotation of the head during use, affecting work efficiency and accuracy. Therefore, we propose a screwdriver shaft with an automatically adjustable angle. Utility Model Content

[0003] To address the shortcomings of existing technologies, this invention provides a screwdriver handle with automatically adjustable angle, thus solving the aforementioned problems.

[0004] To achieve the above-mentioned objectives, this utility model provides the following technical solution: an automatically adjustable screwdriver bar, comprising a screwdriver bar with a screwdriver head rotatably mounted at its bottom end. An opening groove is formed at the bottom of the screwdriver bar, and a pin is rotatably connected between the inner walls of the two sides of the opening groove. An adjusting ring is provided on the pin. Several sets of annularly distributed notches are formed on the outer wall of the adjusting ring. A movable block is fixedly mounted on the side of the screwdriver bar near the center. An angle adjusting component for adjusting the angle of the screwdriver head is provided on the movable block. The angle adjusting component includes: a sliding rod, a movable plate, a return spring, and a side groove. A sliding rod extending to the bottom is slidably connected to the top of the movable block. A movable plate is sleeved on the outer wall of the sliding rod corresponding to the top of the movable block. A return spring is sleeved between the outer wall of the sliding rod corresponding to the movable block and the movable plate. A movable plate is formed on the side of the screwdriver bar corresponding to the top of the movable block. The movable plate is slidably connected in the side groove. A retaining plate is fixedly connected to the bottom of the sliding rod and slidably inserted into the notch.

[0005] A direction adjustment block is fixedly connected to the top of the cutter head, and the direction adjustment block is sleeved between the inner walls of the two sides of the corresponding opening groove on the outer wall of the pin.

[0006] One end of the pin extends rotatably out of the screwdriver rod and is fitted with a cross-shaped connecting frame. The four branches of the connecting frame are respectively fixed to the inner wall of the adjusting ring.

[0007] Compared with the prior art, this utility model provides a screwdriver shank with an automatically adjustable angle, which has the following advantages:

[0008] 1. This automatically adjustable screwdriver handle addresses the common problem of insufficient locking mechanisms in existing adjustable screwdrivers. This device achieves effective locking after angle adjustment by designing a locking plate that slides into the notch on the adjusting ring. This design ensures that the screwdriver head will not rotate accidentally during operation, thus guaranteeing the accuracy and efficiency of the operation.

[0009] 2. Compared to some screwdrivers on the market that use complex mechanical structures to achieve angle adjustment, this screwdriver with automatic angle adjustment has a simpler and more intuitive design. The angle adjustment component achieves rapid angle adjustment and locking through the ingenious combination of components such as the sliding rod, moving plate, and return spring. This not only reduces manufacturing costs but also simplifies the user's operation steps and improves ease of use. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0011] Figure 2 This is a schematic diagram of the adjusting ring and notch of this utility model;

[0012] Figure 3 This is a schematic diagram of the pin shaft of this utility model;

[0013] Figure 4 for Figure 2 A magnified view of part A in the diagram.

[0014] In the diagram: 1. Screwdriver handle; 2. Screwdriver head; 3. Opening slot; 4. Direction adjustment block; 5. Pin; 6. Adjustment ring; 7. Notch; 8. Connecting bracket; 9. Moving block; 10. Slide bar; 11. Moving plate; 12. Return spring; 13. Side slot; 14. Clamping plate. Detailed Implementation

[0015] 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.

[0016] Please see Figure 1-4 An automatically adjustable screwdriver shank includes a screwdriver shank 1, a screwdriver head 2 rotatably mounted at the bottom end of the screwdriver shank 1, an opening groove 3 at the bottom of the screwdriver shank 1, a pin 5 rotatably connected between the inner walls of the two sides of the opening groove 3, an adjusting ring 6 on the pin 5, and several sets of annularly equidistant notches 7 on the outer wall of the adjusting ring 6. A movable block 9 is fixedly mounted on the side of the screwdriver shank 1 near the middle position, and an angle adjusting component for adjusting the angle of the screwdriver head 2 is provided on the movable block 9. The angle adjusting component includes: a lower... The slide bar 10, the movable plate 11, the return spring 12 and the side groove 13 are slidably connected to the top of the movable block 9 and extend to the bottom. The outer wall of the slide bar 10 is fitted with the movable plate 11 above the movable block 9. The outer wall of the slide bar 10 is fitted with the return spring 12 between the movable block 9 and the movable plate 11. The side of the screwdriver rod 1 is provided with the movable plate 11 above the movable block 9. The movable plate 11 is slidably connected in the side groove 13. The bottom of the slide bar 10 is fixedly connected with the retaining plate 14, which is slidably inserted into the notch 7.

[0017] A direction adjustment block 4 is fixedly connected to the top of the cutter head 2. The direction adjustment block 4 is sleeved between the inner walls of the two sides of the corresponding opening groove 3 on the outer wall of the pin shaft 5.

[0018] One end of the pin 5 extends rotatably out of the screwdriver rod 1 and is fitted with a cross-shaped connecting frame 8. The four branches of the connecting frame 8 are respectively fixed to the inner wall of the adjusting ring 6.

[0019] Structural Description: Screwdriver Barrel 1: As the main body of the screwdriver, its bottom end is rotatably mounted with a screwdriver head 2, used to directly tighten or loosen screws. An opening slot 3 is provided at the bottom of the screwdriver barrel 1 to provide installation space for the internal mechanical structure;

[0020] Screwdriver head 2: Fixed to the bottom end of screwdriver shaft 1, it is the part of the screwdriver that directly acts on the screw. A direction adjustment block 4 is fixed to the top of the screwdriver head 2. The direction adjustment block 4 is sleeved between the inner walls of the two sides of the corresponding opening groove 3 on the outer wall of the pin shaft 5, so that the screwdriver head 2 can be adjusted in angle within a certain range.

[0021] Opening slot 3: It is opened at the bottom of the screwdriver bar 1 to accommodate components such as the direction adjustment block 4 and the pin 5, while providing the space required for the angle adjustment of the screwdriver head 2;

[0022] Direction adjusting block 4: Fixed to the top of the cutter head 2, it cooperates with the pin 5, allowing the cutter head 2 to be angled within the constraints of the slot 3. The design of the direction adjusting block 4 makes the rotation of the cutter head 2 more stable and reliable;

[0023] Pin 5: Rotatably connected between the inner walls of both sides of the opening slot 3, it is the fulcrum for the rotation of the direction adjustment block 4. One end of the pin 5 also extends rotatably out of the screwdriver rod 1 and is fitted with a cross-shaped connecting bracket 8 for further fixing and supporting the adjustment ring 6;

[0024] Adjusting ring 6: Sleeves on the outer wall of pin 5 and rotates synchronously with pin 5. The outer wall of adjusting ring 6 has several sets of annularly distributed notches 7, which are used to cooperate with the locking plate 14 in the angle adjustment assembly to lock the angle of the cutter head 2;

[0025] Notch 7: Formed on the outer wall of the adjusting ring 6, used to cooperate with the clamping plate 14 to lock the angle of the cutter head 2. The annular equidistant distribution of notches 7 ensures that the cutter head 2 can be locked at multiple angles;

[0026] Connecting bracket 8: It is cross-shaped and fixed to the inner wall of adjusting ring 6. The design of connecting bracket 8 enhances the structural strength of adjusting ring 6 and provides a connection point with pin 5;

[0027] Moving block 9: Fixedly installed on the side near the center of screwdriver handle 1, it serves as the mounting base for the angle adjustment assembly. A sliding lower lever 10 is slidably connected to the top of moving block 9 for adjusting and locking the angle of the screwdriver head 2.

[0028] The sliding lever 10 is slidably connected to the top of the moving block 9 and extends to the bottom of the screwdriver handle 1. A retaining plate 14 is fixed to the bottom of the sliding lever 10, which engages with the notch 7 on the adjusting ring 6 to lock the angle of the screwdriver head 2.

[0029] Movable plate 11: Sleeve over the outer wall of the sliding rod 10 above the movable block 9, it provides support and guidance when the sliding rod 10 slides. The movable plate 11 also compresses the return spring 12 during its downward sliding motion.

[0030] Return spring 12: It is sleeved on the outer wall of the sliding rod 10 between the moving block 9 and the moving plate 11. After the angle of the cutter head 2 is adjusted, the spring force of the spring spring causes the sliding rod 10 and the locking plate 14 to automatically return to the nearest notch 7, thereby locking the cutter head 2.

[0031] Side groove 13: Located on the side of the screwdriver handle 1 above the moving block 9, it accommodates the sliding of the moving plate 11. The design of the side groove 13 makes the sliding of the moving plate 11 more stable and reliable.

[0032] Clamping plate 14: Fixed to the bottom of the sliding rod 10, it engages with the notch 7 on the adjusting ring 6 to lock the angle of the cutter head 2. The design of clamping plate 14 ensures that the cutter head 2 will not rotate accidentally when locked.

[0033] Working principle: When the angle of the screwdriver head 2 needs to be adjusted, the screwdriver head 2 is inserted into the workpiece to be worked on. Using the screwdriver head 2 as the base point, the screwdriver head 2 rotates on the pin shaft 5 through the direction adjustment block 4, thereby changing the direction of the screwdriver rod 1. The adjustment ring 6 rotates synchronously with the pin shaft 5 through the notch 7. After the angle adjustment is completed, the sliding rod 10 is pressed down, causing the sliding rod 10 to slide down on the moving block 9. During the downward sliding of the moving plate 11, the return spring 12 is squeezed. At the same time, the moving plate 11 slides down in the side groove 13. The return spring 12 is compressed and deformed, and the bottom locking plate 14 of the sliding rod 10 slides into the notch 7 where the adjustment ring 6 stops rotating, locking the direction of the screwdriver head 2. The screwdriver head 2 is then worked by rotating the screwdriver rod 1.

[0034] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A screwdriver shank with automatically adjustable angle, comprising a screwdriver shank (1), characterized in that: The screwdriver rod (1) has a screwdriver head (2) rotatably mounted at its bottom end. The bottom of the screwdriver rod (1) has an opening groove (3). A pin (5) is rotatably connected between the inner walls of the two sides of the opening groove (3). An adjusting ring (6) is provided on the pin (5). The outer wall of the adjusting ring (6) has several sets of annularly distributed notches (7). A moving block (9) is fixedly mounted on the side of the screwdriver rod (1) near the middle. An angle adjusting component for adjusting the angle of the screwdriver head (2) is provided on the moving block (9). The angle adjusting component includes: a sliding rod (10), a moving plate (11), and a return spring. (12) and side groove (13), the top of the moving block (9) is slidably connected to a sliding rod (10) extending to the bottom, the outer wall of the sliding rod (10) is fitted with a moving plate (11) corresponding to the upper part of the moving block (9), the outer wall of the sliding rod (10) is fitted with a reset spring (12) between the moving block (9) and the moving plate (11), the side of the screwdriver rod (1) is provided with a moving plate (11) corresponding to the upper part of the moving block (9), the moving plate (11) is slidably connected in the side groove (13), the bottom of the sliding rod (10) is fixedly connected to a card plate (14), and the card plate (14) is slidably inserted into the notch (7).

2. The screwdriver shank with automatically adjustable angle according to claim 1, characterized in that: The top of the cutter head (2) is fixedly connected to a direction adjustment block (4), which is sleeved between the inner walls of the two sides of the corresponding opening groove (3) on the outer wall of the pin (5).

3. The screwdriver shank with automatically adjustable angle according to claim 2, characterized in that: One end of the pin (5) extends outward from the screwdriver rod (1) and is fitted with a cross-shaped connecting frame (8). The four branches of the connecting frame (8) are respectively fixed to the inner wall of the adjusting ring (6).

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