Screwdriver head capable of preventing screw from falling off

Abstract

The utility model relates to the technical field of manufacturing, and discloses a screwdriver bit capable of preventing a screw from falling off, which comprises a handle, the left side of the handle is fixedly connected with a fixing rod, the outer part of the fixing rod is fixedly connected with an accommodating shell, and the inner walls of the top and the bottom of the accommodating shell are fixedly connected with contact blocks; the device comprises a fixing rod, the left side of the fixing rod is fixedly connected with a first fixing plate, the outer portion of the first fixing plate is slidably connected with a plurality of sliding rods, the right sides of the sliding rods are fixedly connected with limiting blocks, the sliding rods are sleeved with springs, and the left sides of the sliding rods are fixedly connected with a sliding plate. According to the device, the screw presses the screwing head when the screw is screwed, then the screwing head can compress the spring, when the groove of the screw makes contact with the outside of the screwing head, the clamping plate can clamp the screw under the reset acting force of the spring, and then the screw can be prevented from falling off from the device when the screw is screwed.

Description

Technical Field

[0001] The utility model relates to the technical field of manufacturing, in particular to a screwdriver bit capable of preventing screws from falling off. Background Art

[0002] During automotive manufacturing and repair, many components require screws to secure them. Anti-screw bits prevent these screws from loosening during vehicle operation, thereby improving vehicle safety and reliability. The aerospace industry, which demands extremely high component reliability, places particular importance on these bits. They are used to secure aerospace components such as aircraft, rockets, and satellites, ensuring their stability even in extreme environments.

[0003] After searching: Chinese patent announcement number: CN202318155U, which relates to the field of manufacturing technology, discloses an electric screwdriver, including a housing (1), wherein the housing (1) contains a battery (21), a motor (22) and a charging base (23), an output shaft (24) driven to rotate by the motor (22) is provided at one end of the housing (1), a first switch (31) for controlling the power on and off of the motor (22) is provided on the housing (1), the motor (22) is electrically connected to the battery (21), and the first switch (31) is connected in series to the circuit between the motor (22) and the battery (21), and the electric screwdriver also includes a first lighting device for emitting light when the output shaft (24) is working and a second lighting device for continuously emitting light, and the first lighting device and the second lighting device are both electrically connected to the battery (21). The advantages of the electric screwdriver are that the worker can see the screw clearly even in a low ambient light environment, and the electric screwdriver itself has the function of a flashlight, which is more convenient to carry.

[0004] The above-mentioned patent embodiment states that "workers can clearly see the screws even when the ambient light is weak, and the electric screwdriver itself has the function of a flashlight, which is more convenient to carry." The above-mentioned embodiment states that the first lighting device and the second lighting device can enable the device to clearly see the screws even when the ambient light is weak, so that the screwdriver itself has the function of a flashlight. However, it does not take into account that when the device is used, the device cannot prevent the screws from falling, so that when the screw is tightened, the device will slide off the top of the screw. Therefore, in response to the above-mentioned shortcomings, a new type of screw bit that prevents screws from falling off is proposed. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings of the prior art and to propose a screw bit for preventing screws from falling off, aiming to improve the problem in the prior art that the screws cannot be prevented from falling off while being tightened.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A screwdriver bit for preventing screws from falling off, comprising a handle, the left side of the handle being fixedly connected to a fixing rod, the outside of the fixing rod being fixedly connected to a accommodating shell, the top and bottom inner walls of the accommodating shell being fixedly connected to contact blocks, the left side of the fixing rod being fixedly connected to a fixing plate 1, the outside of the fixing plate 1 being slidably connected to a plurality of sliding rods, the right sides of the plurality of sliding rods being fixedly connected to a limiting block, the outside of the sliding rod being sleeved with a spring, the left side of the sliding rod being fixedly connected to a sliding plate, the left side of the sliding plate being fixedly connected to a rotating assembly, the top and bottom of the rotating assembly being fixedly connected to two fixing plates 2, the outside of the fixing plate 2 being fixedly connected to a rotating shaft, and the outside of the rotating shaft being rotatably connected to a splint.

[0008] As a further description of the above technical solution, the rotating assembly includes a twisting head, wherein the bottoms of two of the fixed plates 2 are fixedly connected to the top of the twisting head, and the tops of the other two fixed plates 2 are fixedly connected to the bottom of the twisting head.

[0009] As a further description of the above technical solution, the outer portion of the sliding plate is slidably connected to the inner portion of the accommodating shell, and the left side of the fixing rod passes through the middle portion of the right side of the accommodating shell and extends inward.

[0010] As a further description of the above technical solution, one end of the spring is fixedly connected to the left side of the fixed plate 1, and the other end of the spring is fixedly connected to the right side of the sliding plate.

[0011] As a further description of the above technical solution, adjacent sides of the two clamping plates are in contact with adjacent sides of the two contact blocks respectively, and the outer portion of the first fixing plate is in contact with the inner wall of the accommodating shell.

[0012] The utility model has the following beneficial effects:

[0013] 1. In the present invention, when the screw is turned, the screw presses the turning head, which in turn compresses the spring. When the groove of the screw contacts the outside of the turning head, the clamping plate clamps the screw under the force of the spring return, thereby preventing the screw from falling off the device when the screw is turned. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 A three-dimensional diagram of a screwdriver bit for preventing screws from falling off proposed by the present invention;

[0015] Figure 2 This is a schematic diagram of the internal structure of a housing for a screwdriver bit that prevents screws from falling off, as proposed by the present invention;

[0016] Figure 3 for Figure 2 Enlarged view of point A.

[0017] Legend:

[0018] 1. Handle; 2. Fixed rod; 3. Housing; 4. Contact block; 5. Fixed plate 1; 6. Sliding rod; 7. Limit block; 8. Spring; 9. Sliding plate; 10. Twist head; 11. Fixed plate 2; 12. Rotating shaft; 13. Clamp. DETAILED DESCRIPTION

[0019] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] Reference Figure 1 - Figure 3 The utility model provides an embodiment of a screw bit for preventing screws from falling off, comprising a handle 1, a fixed rod 2 being fixedly connected to the left side of the handle 1, so that when the handle 1 is rotated, the fixed rod 2 will be driven to rotate, the outside of the fixed rod 2 is fixedly connected to a accommodating shell 3, and then the fixed rod 2 will drive the accommodating shell 3 to rotate when it is rotated, the top and bottom inner walls of the accommodating shell 3 are fixedly connected to contact blocks 4, and then the accommodating shell 3 can provide support for the contact blocks 4, and the left side of the fixed rod 2 is fixedly connected to a fixed plate 1 5, so that the fixed rod 2 can provide support for the fixed plate 1 5, and the outside of the fixed plate 1 5 is slidably connected to multiple sliding rods 6, and then the fixed plate 1 5 can provide support for multiple sliding rods 6, and the right sides of the multiple sliding rods 6 are fixedly connected to limiting blocks 7, and then the limiting blocks 7 can limit the sliding rods 6.

[0021] The outer sleeve of the sliding rod 6 is provided with a spring 8, and the left side of the sliding rod 6 is fixedly connected to a sliding plate 9, so that when the sliding plate 9 moves, the sliding rod 6 will be driven to move, one end of the spring 8 is fixedly connected to the left side of the fixed plate 5, and the other end of the spring 8 is fixedly connected to the right side of the sliding plate 9, and then when the sliding plate 9 moves, the spring 8 is compressed, and the outer sliding plate 9 is slidably connected to the inside of the accommodating shell 3, and then the accommodating shell 3 can limit the sliding plate 9. The left side of the fixed rod 2 passes through the middle of the right side of the accommodating shell 3 and extends inward, so that the fixed rod 2 can provide support for the accommodating shell 3, and the left side of the sliding plate 9 is fixedly connected to the rotating assembly, and then the sliding plate 9 can provide support for the rotating assembly.

[0022] The top and bottom of the rotating assembly are fixedly connected to two fixed plates 2 11, and then the rotating assembly can provide support for the fixed plate 2 11. The rotating assembly includes a screwing head 10, wherein the bottoms of the two fixed plates 2 11 are fixedly connected to the top of the screwing head 10, and the tops of the other two fixed plates 2 11 are fixedly connected to the bottom of the screwing head 10, so that the screwing head 10 can provide support for the fixed plate 2 11. The outside of the fixed plate 2 11 is fixedly connected with a rotating shaft 12, and then the fixed plate 2 11 can provide support for the rotating shaft 12. The outside of the rotating shaft 12 is rotatably connected with a splint 13, and then the rotating shaft 12 can make the rotation of the splint 13 more stable. The adjacent sides of the two splints 13 are respectively in contact with the adjacent sides of the two contact blocks 4, so that the splint 13 will be subjected to pressure from the contact block 4 when it moves, and the outside of the fixed plate 1 5 is in contact with the inner wall of the accommodating shell 3.

[0023] Compared with some existing technologies, the above content enables the device to press the screwing head 10 when the screw is tightened during use, and then the screwing head 10 will compress the spring 8. Then, when the groove of the screw contacts the outside of the screwing head 10, the clamp 13 will clamp the screw under the force of the spring 8's reset, thereby preventing the screw from falling off the device when the screw is tightened.

[0024] Working principle: First, the top of the screwing head 10 contacts the groove of the screw, so that the screw will press the screwing head 10, and then the screwing head 10 will press the sliding plate 9, and then the sliding plate 9 will press multiple sliding rods 6, and then the sliding plate 9 will compress the spring 8, so that the screwing head 10 can drive the fixed plate 2 11 to move, and then the fixed plate 2 11 will drive the rotating shaft 12 to move, and then the rotating shaft 12 will drive the splint 13 to move, so that the screwing head 10 can be completely inserted into the groove of the screw. Stop applying pressure to the screw, so that the sliding plate 9 will drive the screwing head 10 to reset under the action of the spring 8, and then the screwing head 10 can drive the rotating shaft 12 to move through the fixed plate 11, and then the rotating shaft 12 will drive the clamping plate 13 to move, so that the contact block 4 can press the right side of the clamping plate 13, and then the left sides of the two clamping plates 13 can be brought close to each other, and then when the two clamping plates 13 are close to each other, the screw can be clamped and fixed, thereby preventing the screw from falling off from the outside of the device.

[0025] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A screwdriver bit for preventing screws from falling off, comprising a handle (1), characterized in that: The left side of the handle (1) is fixedly connected to a fixed rod (2), the outside of the fixed rod (2) is fixedly connected to a housing (3), the top and bottom inner walls of the housing (3) are fixedly connected to contact blocks (4), the left side of the fixed rod (2) is fixedly connected to a fixed plate (5), the outside of the fixed plate (5) is slidably connected to a plurality of sliding rods (6), the right sides of the plurality of sliding rods (6) are fixedly connected to a limiting block (7), the outside of the sliding rod (6) is provided with a spring (8), the left side of the sliding rod (6) is fixedly connected to a sliding plate (9), the left side of the sliding plate (9) is fixedly connected to a rotating assembly, the top and bottom of the rotating assembly are fixedly connected to two fixed plates (11), the outside of the fixed plate (11) is fixedly connected to a rotating shaft (12), and the outside of the rotating shaft (12) is rotatably connected to a splint (13).

2. The screw-proof bit according to claim 1, characterized in that: The rotating assembly comprises a screwing head (10), wherein the bottoms of two of the second fixing plates (11) are fixedly connected to the top of the screwing head (10), and the tops of the other two of the second fixing plates (11) are fixedly connected to the bottom of the screwing head (10).

3. The screw-proof bit according to claim 1, characterized in that: The outside of the sliding plate (9) is slidably connected to the inside of the accommodating shell (3), and the left side of the fixing rod (2) passes through the middle of the right side of the accommodating shell (3) and extends inward.

4. The screw-proof bit according to claim 1, characterized in that: One end of the spring (8) is fixedly connected to the left side of the fixed plate (5), and the other end of the spring (8) is fixedly connected to the right side of the sliding plate (9).

5. The screw-proof bit according to claim 1, characterized in that: The adjacent sides of the two clamping plates (13) are in contact with the adjacent sides of the two contact blocks (4), respectively, and the exterior of the fixing plate 1 (5) is in contact with the inner wall of the accommodating shell (3).

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