Screwdriver head with protection function

Abstract

The utility model relates to the field of mechanical tools, and discloses a screwdriver bit with a protection function, which comprises a handle, a rotating rod is rotatably connected in the handle, a driving component is arranged at the bottom of the rotating rod, a plurality of connecting blocks are fixedly connected at the bottom of the handle, a rotating shaft is rotatably connected in every two adjacent connecting blocks, and the rotating shaft is fixedly connected with the rotating rod. The outer portion of the rotating shaft is fixedly connected with follow-up clamping blocks, the top of the rotating rod is in threaded connection with a fixing block, the top of the fixing block is fixedly connected with a groove ring, the outer portion of the fixing block is sleeved with a reset assembly, and the outer portions of the follow-up clamping blocks are detachably connected with bit rods. According to the screwdriver, the groove ring in threaded connection with the top of the rotating rod can be stressed to move, so that the follow-up clamping plate clamped on the inner wall of the groove ring is driven to rotate by taking the rotating shaft as the center, the protrusion at the top of the follow-up clamping block fixes the clamping groove formed in the bottom of the screwdriver head, and the purpose of rapidly replacing different screwdriver heads is achieved.

Description

Technical Field

[0001] The utility model relates to the field of coking production devices, in particular to a bit with a protective function. Background Art

[0002] A bit usually refers to a tool attachment for tightening or loosening screws, and they are usually used on electric screwdrivers or manual screwdrivers. The design of the bit usually matches the shape of the screw head to effectively turn the screw. Bits usually come in different types and sizes to accommodate various types and sizes of screws. They can be separate attachments or part of the screwdriver, depending on the type and design of the tool used.

[0003] After retrieval: Chinese Patent Publication No.: CN201455874U, which relates to the field of hand tools, discloses a built-in bit screwdriver, including a handle, a bit rod and a bit, and further includes a handle cover. Multiple bit slots are provided inside the handle cover, and multiple bits are respectively embedded in the bit slots; a slot for accommodating multiple bits is provided at the rear of the handle, and the handle cover is threadedly connected to the handle to collect multiple bits in the above slot. The built-in bit screwdriver of the utility model collects multiple bits in the handle cover, which can be connected to the handle together with the handle cover, or can be sleeved on the bit rod together with the handle cover, facilitating storage and use.

[0004] It is recorded in the above patent embodiment that "the built-in bit screwdriver of the utility model includes a handle 1, a bit rod 2, a bit 3 and a handle cover 4. Multiple bit slots 41 are provided inside the handle cover 4, and multiple bits 3 are respectively embedded in the bit slots inside the handle cover; a slot 11 for accommodating multiple bits is provided at the rear of the handle 1, and the handle cover 4 is threadedly connected to the handle 1 to collect multiple bits in the above slot", which can fix different bits inside the handle. However, fixing through grooves lacks stability. Therefore, in view of the above-mentioned deficiencies, a new type of bit with a protective function is proposed. Summary 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 a protective function, aiming to improve the problem that the clamping of the bit is not firm enough during the use of some devices.

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

[0007] A bit head with a protective function, comprising a handle, a rotating rod is rotatably connected inside the handle, a driving component is arranged at the bottom of the rotating rod, a plurality of connecting blocks are fixedly connected to the bottom of the handle, a rotating shaft is rotatably connected inside adjacent two connecting blocks, a follower engaging block is fixedly connected to the outside of the rotating shaft, a fixing block is threadedly connected to the top of the rotating rod, a groove ring is fixedly connected to the top of the fixing block, a reset component is sleeved outside the fixing block, and a bit shank is detachably connected to the outside of a plurality of the follower engaging blocks.

[0008] Further, a engaging groove is formed at the bottom of the bit shank.

[0009] Further, a thread is formed at the top of the rotating rod, and a chamber is formed at the top of the handle.

[0010] Further, the driving component includes a limiting circular plate, the top of the limiting circular plate is fixedly connected to the bottom of the rotating rod, and a dial rod is fixedly connected to one side of the outside of the limiting circular plate.

[0011] Further, the reset component includes a spring, the spring is sleeved outside the fixing block, one end of the spring is fixedly connected to the bottom of the groove ring, and the other end of the spring is fixedly connected to the inner wall of the handle.

[0012] Further, a protective sleeve is threadedly connected to the outside of the bit shank.

[0013] Further, a plurality of rubber rings are fixedly connected to the outside of the handle.

[0014] The utility model has the following beneficial effects:

[0015] In the utility model, by controlling the rotation of the dial rod, the limiting circular plate drives the rotating rod to rotate. Because a thread is formed at the top of the rotating rod, the groove ring threadedly connected to the top of the rotating rod can be forced to move, thereby driving the follower engaging plate engaged with the inner wall of the groove ring to rotate around the rotating shaft, so that the protrusion on the top of the follower engaging block fixes the engaging groove formed at the bottom of the bit head, achieving the purpose of quickly replacing different bit heads. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a perspective view of a bit head with a protective function proposed by the utility model;

[0017] Figure 2 is a sectional view of the handle structure of a bit head with a protective function proposed by the utility model;

[0018] Figure 3 is Figure 2 the enlarged view at A in

[0019] Legend Explanation:

[0020] 1. Handle; 2. Rotating rod; 3. Limiting circular plate; 4. Lever; 5. Connecting block; 6. Rotating shaft; 7. Follow-up engaging block; 8. Fixed block; 9. Groove ring; 10. Spring; 11. Bit rod; 12. Engaging groove; 13. Protective sleeve; 14. Rubber ring. Specific Embodiment

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0022] Refer to Figure 1 - Figure 3 , an embodiment provided by the present invention: A bit with a protective function includes a handle 1, which is the main part of the bit and provides support for holding and operation. A chamber is provided at its top, which is used to accommodate other components. A rotating rod 2 is rotatably connected inside the handle 1. This rod is connected inside the handle 1 and can rotate. A thread is provided at its top for connecting other components. The rotation of the rotating rod 2 can achieve different functions or replace the working head by operating the bit. A driving component is provided at the bottom of the rotating rod 2 for controlling the rotation of the bit rod 11. The driving component includes a limiting circular plate 3. The top of the limiting circular plate 3 is fixedly connected to the bottom of the rotating rod 2. A lever 4 is fixedly connected to one side of the outside of the limiting circular plate 3. A plurality of connecting blocks 5 are fixedly connected to the bottom of the handle 1. A rotating shaft 6 is rotatably connected inside adjacent two connecting blocks 5. A follow-up engaging block 7 is fixedly connected to the outside of the rotating shaft 6. Fixed to the outside of the rotating shaft 6, they are interlocked with the engaging groove 12 of the bit rod 11 to achieve the fixing and unlocking functions of the bit. The top of the rotating rod 2 is threadedly connected to a fixed block 8. The top of the fixed block 8 is fixedly connected to a groove ring 9. A reset component is sleeved outside the fixed block 8, and its function is to reset the components to the initial position after the operation. The reset component includes a spring 10. The spring 10 is sleeved outside the fixed block 8. One end of the spring 10 is fixedly connected to the bottom of the groove ring 9, and the other end of the spring 10 is fixedly connected to the inner wall of the handle 1. A bit rod 11 is detachably connected to the outside of a plurality of follow-up engaging blocks 7. An engaging groove 12 is provided at the bottom of the bit rod 11. A protective sleeve 13 is threadedly connected to the outside of the bit rod 11, which can protect the head of the bit rod 11 from being damaged by bumps when not in use. A plurality of rubber rings 14 are fixedly connected to the outside of the handle 1. These rings are located outside the handle 1 and are used to provide additional holding and anti-slip functions, and also for shock absorption and protection.

[0023] Compared with some devices in the prior art, by controlling the rotation of the lever 4, the limit circular plate 3 drives the rotating rod 2 to rotate. Since a thread is provided at the top of the rotating rod 2, the groove ring 9 threadedly connected to the top of the rotating rod 2 can move under force, thereby driving the follower engaging plate engaged with the inner wall of the groove ring 9 to rotate around the rotating shaft 6, so that the protrusion at the top of the follower engaging block 7 fixes the engaging groove 12 provided at the bottom of the bit, achieving the purpose of quickly replacing different bits.

[0024] Working principle: First, the user holds and operates the bit through the handle 1. A chamber is provided at the top of the handle 1 for accommodating other components. Inside the handle 1, a rotating rod 2 is rotatably connected. It is connected inside the handle 1 and can rotate. A driving assembly is provided at the bottom of the rotating rod 2, including a limit circular plate 3. The top of it is fixedly connected to the bottom of the rotating rod 2, and a lever 4 is fixedly connected to the outer side. When the user controls the lever 4 to rotate, the limit circular plate 3 drives the rotating rod 2 to rotate. At this time, the groove ring 9 inside the fixed block 8 threadedly connected to the top of the rotating rod 2 will move under the action of force. The inner wall of the groove ring 9 is engaged with the follower engaging plate, and the follower engaging plate is fixedly connected to the rotating shaft 6, so that the protruding part at the top of the follower engaging block 7 fixes the engaging groove 12 provided at the bottom of the bit. Finally, through this process, the user can quickly replace different bits, and when not in use, the protective cover 13 can protect the head of the bit rod 11 from being knocked and damaged. Generally speaking, this design realizes the quick and convenient replacement of bits and provides additional protection measures, enhancing the reliability and durability of the device.

[0025] 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 described in the foregoing embodiments, or perform equivalent replacements for 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 bit with a protective function, comprising a handle (1), characterized in that: A rotating rod (2) is rotatably connected inside the handle (1). A driving assembly is arranged at the bottom of the rotating rod (2). A plurality of connecting blocks (5) are fixedly connected to the bottom of the handle (1). A rotating shaft (6) is rotatably connected inside two adjacent connecting blocks (5). A follower engaging block (7) is fixedly connected to the outside of the rotating shaft (6). A fixing block (8) is threadedly connected to the top of the rotating rod (2). A groove ring (9) is fixedly connected to the top of the fixing block (8). A reset assembly is sleeved outside the fixing block (8). A bit rod (11) is detachably connected to the outside of a plurality of the follower engaging blocks (7).

2. The bit with a protective function according to claim 1, wherein: A engaging groove (12) is formed at the bottom of the bit rod (11).

3. A bit with a protective function according to claim 1, characterized in that: Threads are formed at the top of the rotating rod (2), and a chamber is formed at the top of the handle (1).

4. A bit with a protective function according to claim 1, characterized in that: The driving assembly includes a limiting circular plate (3). The top of the limiting circular plate (3) is fixedly connected to the bottom of the rotating rod (2). A dial rod (4) is fixedly connected to one side of the outside of the limiting circular plate (3).

5. A bit with a protective function according to claim 1, characterized in that: The reset assembly includes a spring (10). The spring (10) is sleeved outside the fixing block (8). One end of the spring (10) is fixedly connected to the bottom of the groove ring (9), and the other end of the spring (10) is fixedly connected to the inner wall of the handle (1).

6. The bit with a protective function according to claim 1, characterized in that: A protective sleeve (13) is threadedly connected to the outside of the bit rod (11).

7. A bit with a protective function according to claim 1, characterized in that: A plurality of rubber rings (14) are fixedly connected to the outside of the handle (1).

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