Electric screwdriver head switching device

Abstract

The utility model relates to the technical field of electric screwdrivers, and discloses an electric screwdriver head switching device which comprises a mounting column, a placing ring is fixedly connected in the mounting column, a plurality of cavities are formed in the mounting column, springs are arranged in the cavities, limiting assemblies are arranged in the cavities, and the springs are arranged in the limiting assemblies. A connecting column is slidably connected to the interior of the containing ring, a rubber abutting plate is fixedly connected to one side of the connecting column, the limiting assembly comprises a limiting plate, the outer portion of the limiting plate is slidably connected to the inner wall of the cavity, a containing groove is formed in the bottom of the containing ring, and a powerful magnet is arranged in the containing groove. And one end of the spring is fixedly connected to one side of the inner wall of the cavity. According to the utility model, the bit is placed in the placing ring and then moves downwards, the outer part of the plug contacts with the rubber abutting plate, and the rubber abutting plate adapts to the shape of the outer part of the bit, so that the bit is prevented from loosening.

Description

Technical Field

[0001] The utility model relates to the technical field of electric screwdriver bits, in particular to an electric screwdriver bit adapter. Background Art

[0002] An electric screwdriver bit adapter is a device used to connect electric screwdriver bits of different types or specifications to tools. It can provide an adapter or interface so that users can use screwdriver bits of different types or sizes on the same electric tool, thereby increasing the versatility and flexibility of the tool. This device is often used in the fields of mechanical processing, assembly, maintenance, etc.

[0003] After searching, the Chinese patent document with the announcement number CN203109870U discloses an electric screwdriver bit adapter, which includes a housing, two gear devices arranged at both ends of the housing, each gear device includes a gear sleeved on a rotating shaft, the two gears are connected by a chain for synchronous rotation, and one of the rotating shafts is provided with a screwdriver bit jack, and the other is provided with a worm screw jack. The utility model can separate the screwdriver body and the screwdriver bit of the electric screwdriver, greatly reducing the operating space, so that the screws in the corner gap or narrow space can also be tightened or loosened with the screwdriver bit, which is very convenient and practical.

[0004] The beneficial effects of the above patent specification mentions that "the gears provided with a bit socket and a worm socket at both ends of the shell are driven by the chain and the rotating shaft to rotate synchronously, thereby realizing the physical separation of the bit body and the bit of the electric screwdriver, and greatly reducing the upper space of the screw required for the operation of the electric screwdriver." Although the above patent can use the chain and the rotating shaft to drive the gears to rotate synchronously, it is necessary to insert the bit and the body of the screw into the socket respectively when using it. The gap inside the socket will cause different types of bits to loosen inside the socket, affecting the use. For this reason, an electric screwdriver bit adapter is proposed to solve the above problem. Utility Model Content

[0005] In order to remedy the above deficiencies, the utility model provides an electric screwdriver bit adapter device, which aims to improve the problem in the prior art that gaps inside the socket may cause screwdriver bits of different models to become loose inside the socket, thus affecting use.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] An electric screwdriver bit adapter device comprises a mounting column, a placement ring is fixedly connected inside the mounting column, a plurality of cavities are opened inside the mounting column, a spring is arranged inside the cavity, a limit position assembly is arranged inside the cavity, a connecting column is slidably connected inside the placement ring, and a rubber stop plate is fixedly connected to one side of the connecting column;

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

[0009] The limiting assembly comprises a limiting plate, the outer portion of the limiting plate is slidably connected to the inner wall of the cavity, a placing groove is provided at the bottom of the placing ring, and a strong magnet is provided inside the placing groove;

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

[0011] One end of the spring is fixedly connected to one side of the inner wall of the cavity, and the other end of the spring is fixedly connected to the side of the limit plate away from the connection column;

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

[0013] The outside of the connecting column is slidably connected to the inner wall of the cavity, and the outside of the rubber abutment plate is in contact with the inner wall of the placement ring;

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

[0015] The outside of the mounting column is fixedly connected with a fixing ring, and the outside of the fixing ring is fixedly connected with a plurality of anti-slip pads;

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

[0017] The bottom of the mounting column is fixedly connected with a base, and a threaded groove is arranged inside the base.

[0018] The utility model has the following beneficial effects:

[0019] In the utility model, after the screwdriver bit is placed inside the placement ring and then moved downward, the outside of the plug will contact the rubber abutment plate, and the rubber abutment plate will adapt to the shape of the outside of the screwdriver bit to prevent the screwdriver bit from becoming loose. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a three-dimensional schematic diagram of an electric screwdriver bit adapter device proposed by the utility model;

[0021] Figure 2 This is a schematic diagram of the structure inside a placement slot of an electric screwdriver bit adapter device proposed by the utility model;

[0022] Figure 3 This is a structural schematic diagram of a rubber stopper plate of an electric screwdriver bit adapter device proposed by the utility model;

[0023] Figure 4 The utility model provides a structural schematic diagram of an anti-skid pad of an electric screwdriver bit adapter.

[0024] Legend:

[0025] 1. Mounting column; 2. Placement ring; 3. Cavity; 4. Spring; 5. Limit plate; 6. Connecting column; 7. Rubber support plate; 8. Placement groove; 9. Strong magnet; 10. Fixed ring; 11. Anti-slip pad; 12. Base; 13. Threaded groove. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0027] Reference Figure 1 and Figure 4 , the utility model provides an embodiment: an electric screwdriver bit adapter device, including a mounting column 1, firstly, the mounting column 1 is placed in a suitable position, the bottom of the mounting column 1 is fixedly connected with a base 12, the inside of the base 12 is provided with a threaded groove 13, then the mounting column 1 is threadedly installed on the handle body by using the threaded groove 13 inside the base 12, the outside of the mounting column 1 is fixedly connected with a fixing ring 10, then the electric screwdriver bit is placed into the inside of the placement ring 2 by holding the outside of the fixing ring 10, the outside of the fixing ring 10 is fixedly connected with a plurality of anti-skid pads 11, the anti-skid pads 11 can prevent slipping when grasping, the inside of the mounting column 1 is fixedly connected with the placement ring 2, as the bottom of the electric screwdriver bit contacts the bottom of the placement ring 2, a plurality of cavities 3 are opened inside the mounting column 1, a spring 4 is provided inside the cavity 3, one end of the spring 4 is fixedly connected to one side of the inner wall of the cavity 3, and at the same time, the spring 4 is compressed inside the cavity 3 by force;

[0028] Reference Figure 2-Figure 3A limiting component is arranged inside the cavity 3, and the limiting component includes a limiting plate 5. A placement groove 8 is provided at the bottom of the placement ring 2, and a strong magnet 9 is arranged inside the placement groove 8. At this time, the strong magnet 9 inside the placement groove 8 will adsorb the electric screwdriver head inside the placement ring 2, and the inside of the placement ring 2 is slidably connected with a connecting column 6, and one side of the connecting column 6 is fixedly connected with a rubber plate 7. At the same time, the outside of the electric screwdriver head will slide in the middle of the multiple rubber plates 7, and the outside of the rubber plate 7 will contact the inner wall of the placement ring 2. At this time, the electric screwdriver head will squeeze the rubber plate 7 outward, and the rubber plate 7 will be pressed against the inner wall of the placement ring 2. The plate 7 is subjected to force to squeeze the connecting column 6, and the outside of the connecting column 6 is slidably connected to the inner wall of the cavity 3. The other end of the spring 4 is fixedly connected to the side of the limiting plate 5 away from the connecting column 6. At this time, the connecting column 6 is subjected to force to slide on the inner wall of the cavity 3 and squeeze the limiting plate 5. The outside of the limiting plate 5 is slidably connected to the inner wall of the cavity 3. When the cavity 3 is subjected to force compression, it will absorb the external pressure and generate a reaction force on the limiting plate 5, so that the rubber plate 7 is in closer contact with the outside of the electric screwdriver bit, and the electric screwdriver bit is fixed. The rubber plate 7 will adapt to the shape of the outside of the screwdriver bit to prevent the screwdriver bit from loosening.

[0029] Working principle: first place the mounting column 1 to a suitable position, then use the threaded groove 13 inside the base 12 to thread the mounting column 1 on the handle, then hold the outside of the fixing ring 10 and put the electric screwdriver bit into the inside of the placement ring 2, and the anti-slip pad 11 can prevent slipping when grasping. As the bottom of the electric screwdriver bit contacts the bottom of the placement ring 2, the strong magnet 9 inside the placement groove 8 will adsorb the electric screwdriver bit to the inside of the placement ring 2, and at the same time, the outside of the electric screwdriver bit will slide in the middle of multiple rubber abutment plates 7. At this time, the electric screwdriver bit will squeeze the rubber abutment plate 7 outward, and the rubber abutment plate 7 is forced to squeeze the connecting column 6. At this time, the connecting column 6 is forced to slide on the inner wall of the cavity 3 and squeeze the limit plate 5. At the same time, the spring 4 is compressed inside the cavity 3. When compressed, the cavity 3 will absorb external pressure and generate a reaction force on the limit plate 5, so that the rubber abutment plate 7 is in closer contact with the outside of the electric screwdriver bit, and the electric screwdriver bit is fixed.

[0030] 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 substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An electric screwdriver bit adapter, comprising a mounting post (1), characterized in that: The interior of the installation column (1) is fixedly connected to a placement ring (2), a plurality of cavities (3) are provided inside the installation column (1), a spring (4) is provided inside the cavity (3), a limit position assembly is provided inside the cavity (3), a connecting column (6) is slidably connected inside the placement ring (2), and a rubber stop plate (7) is fixedly connected to one side of the connecting column (6).

2. The electric screwdriver bit adapter according to claim 1, characterized in that: The limiting assembly comprises a limiting plate (5), the outer portion of the limiting plate (5) is slidably connected to the inner wall of the cavity (3), a placing groove (8) is provided at the bottom of the placing ring (2), and a strong magnet (9) is provided inside the placing groove (8).

3. The electric screwdriver bit adapter according to claim 2, characterized in that: One end of the spring (4) is fixedly connected to one side of the inner wall of the cavity (3), and the other end of the spring (4) is fixedly connected to a side of the limiting plate (5) away from the connecting column (6).

4. The electric screwdriver bit adapter according to claim 1, characterized in that: The outside of the connecting column (6) is slidably connected to the inner wall of the cavity (3), and the outside of the rubber abutment plate (7) is in contact with the inner wall of the placement ring (2).

5. The electric screwdriver bit adapter according to claim 1, characterized in that: A fixing ring (10) is fixedly connected to the outside of the mounting column (1), and a plurality of anti-slip pads (11) are fixedly connected to the outside of the fixing ring (10).

6. The electric screwdriver bit adapter according to claim 1, characterized in that: The bottom of the installation column (1) is fixedly connected to a base (12), and a threaded groove (13) is provided inside the base (12).

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