Nailing head

Abstract

The utility model relates to the technical field of nailing equipment, in particular to a nailing head which comprises a positioning sleeve, a screwdriver head is installed in the positioning sleeve, one end of the positioning sleeve is provided with a locking sleeve installed in a sliding mode, the other end of the positioning sleeve is provided with a clamping assembly connected with the screwdriver head, and the front end of the positioning sleeve is provided with a clamping sleeve used for containing a screw. A limiting steel ball moving in the wall thickness direction of the clamping sleeve is arranged on the side wall of the clamping sleeve, a guide groove corresponding to the limiting steel ball in position is formed in the inner side wall of the locking sleeve, and the depth of the guide groove is gradually reduced from the end portion of the locking sleeve to the inside. And when the locking sleeve moves forwards in the nailing process, the limiting steel ball is gradually separated from the screw when the limiting steel ball moves outwards along with the depth of the guide groove, the screw can be limited in the process, and the phenomenon that the screw is inclined is avoided.

Description

Technical Field

[0001] This utility model relates to the field of nailing equipment technology, specifically to a convenient and practical nailing head. Background Technology

[0002] Screw connections are a widely used method of connection in fields such as mechanical assembly, furniture manufacturing, and building decoration. Traditional screw installation tools, such as screwdrivers and electric drills, usually require manual alignment with the screw head notch, which is cumbersome and inefficient. In addition, different screw sizes require different bits, and frequent bit changes also affect work efficiency.

[0003] In recent years, some improved screw installation tools have appeared on the market. Most of them fix screws by magnetic attraction. However, this method is not very effective at securing screws during the nailing process, especially in small work areas where screws are prone to tilting or even falling off. Moreover, this fixing method requires the use of magnetic bits, which increases the cost of the bits. In particular, when multiple types of bits need to be prepared for replacement, the overall cost of the equipment increases. Utility Model Content

[0004] To address the aforementioned problems, this utility model provides a nail-driving bit that facilitates screw installation and bit replacement.

[0005] To achieve the above objectives, this utility model embodiment adopts the following technical solution: a nail-driving head includes a positioning sleeve, a screwdriver bit is disposed inside the positioning sleeve, a locking sleeve is slidably mounted at one end of the positioning sleeve, and a clamping assembly connected to the screwdriver bit is disposed at the other end. A clamping sleeve for placing screws is disposed at the front end of the positioning sleeve, a limiting steel ball is disposed on the side wall of the clamping sleeve, and a guide groove corresponding to the position of the limiting steel ball is disposed on the inner side wall of the locking sleeve. The depth of the guide groove gradually decreases from the end of the locking sleeve inward.

[0006] As a further improvement to the above technical solution:

[0007] The number of limiting steel balls is multiple and they are evenly distributed along the circumference of the locking sleeve.

[0008] A return spring is provided on the outer wall of the positioning sleeve, and a clearance chamber corresponding to the position of the return spring is provided in the middle of the locking sleeve.

[0009] The clamping assembly includes a clamping shaft, one end of which is provided with a clamp and the other end with a connector, and a limit pin is provided in the middle of the clamping shaft.

[0010] The clamp includes a slider, an elastic clamping plate is provided on the outer side wall of the slider, and a through hole corresponding to the position of the elastic clamping plate is provided on the side wall of the positioning sleeve, and a limiter is provided in the through hole.

[0011] The front end of the clamping shaft is provided with a guide post for mounting the slider, and a buffer spring assembly is provided on the guide post between the slider and the clamping shaft.

[0012] A magnetic block is provided at the end of the guide post facing the bit.

[0013] The side wall of the positioning sleeve is provided with a through groove corresponding to the position of the limiting pin, and the upper end of the limiting pin is located in the through groove.

[0014] The side wall of the clamping shaft is provided with a storage cavity for installing a limiting pin, and a pressing spring is provided at the bottom of the storage cavity.

[0015] The beneficial effects of this utility model embodiment are as follows: The nail head includes a positioning sleeve, in which a screwdriver bit is installed. One end of the positioning sleeve is provided with a slidably installed locking sleeve, and the other end is provided with a clamping assembly connected to the screwdriver bit. The front end of the positioning sleeve is provided with a clamping sleeve for placing screws. The side wall of the clamping sleeve is provided with a limiting steel ball that moves along the wall thickness direction of the clamping sleeve. The inner side wall of the locking sleeve is provided with a guide groove corresponding to the position of the limiting steel ball. The depth of the guide groove gradually decreases from the end of the locking sleeve inward. Compared with the conventional screw installation method, this method is more labor-saving for screw installation. During the nailing process, as the locking sleeve moves forward, the limiting steel ball gradually separates from the screw as it moves outward with the depth of the guide groove. In this process, it can also limit the screw and prevent the screw from becoming crooked. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a cross-sectional view of the present invention;

[0018] Figure 3 This is a schematic diagram of the locking sleeve in this utility model;

[0019] Figure 4 This is a schematic diagram of the mounting structure of the bit in this utility model;

[0020] Figure 5 This is a schematic diagram of the positioning sleeve in this utility model.

[0021] In the diagram: 1. Positioning sleeve; 2. Screwdriver bit; 3. Locking sleeve; 4. Clamping sleeve; 5. Limiting ball; 6. Guide groove; 7. Alternating chamber; 8. Clamping shaft; 9. Clamping device; 10. Connector; 11. Limiting pin; 12. Slider; 13. Elastic clamping plate; 14. Through hole; 15. Limiter; 16. Guide post; 17. Buffer spring assembly; 18. Magnetic block; 19. Through groove; 20. Storage cavity; 21. Pressing spring; 22. Return spring. Detailed Implementation

[0022] Preferred embodiments of the present invention will now be described with reference to the accompanying drawings. Those skilled in the art should understand that these embodiments are merely illustrative of the technical principles of the present invention and are not intended to limit the scope of protection of the present invention.

[0023] like Figure 1-3 As shown, the nail head in this embodiment includes a positioning sleeve 1, a screwdriver bit 2 installed inside the positioning sleeve 1, a locking sleeve 3 slidably mounted at one end of the positioning sleeve 1, and a clamping assembly connected to the screwdriver bit 2 installed at the other end. A clamping sleeve 4 for placing screws is provided at the front end of the positioning sleeve 1. A limiting steel ball 5 that moves along the wall thickness direction of the clamping sleeve 4 is provided on the side wall of the clamping sleeve 4. A guide groove 6 corresponding to the position of the limiting steel ball 5 is provided on the inner side wall of the locking sleeve 3. The depth of the guide groove 6 gradually decreases from the end of the locking sleeve 3 inwards. When the screw is installed, the limiting steel ball 5 is located at the front end of the guide groove 6, and the tail end of the screw is placed in the clamping sleeve 4. Inside, the outer side of the limiting steel ball 5 is not limited at this time. When the screw is installed, it can be pressed outward by the limiting steel ball 5. After the screw is installed, the locking sleeve 3 slides backward. During this process, the limiting steel ball 5 changes from the contact point with the front end of the guide groove 6 to the end end. As the depth of the guide groove 6 changes, it will press the limiting steel ball 5 inward, thus limiting the screw. Compared with the conventional screw installation method, this method of screw installation is more labor-saving. During the nailing process, as the locking sleeve moves forward, the limiting steel ball 5 gradually separates from the screw as it moves outward with the depth of the guide groove 6. In this process, it can also limit the screw and prevent the screw from becoming crooked.

[0024] The number of limiting steel balls 5 is multiple and they are evenly distributed along the circumference of the locking sleeve 3. In this embodiment, it is preferred to have 3 balls.

[0025] A return spring 22 is fitted on the outer wall of the positioning sleeve 1. A clearance chamber 7 corresponding to the position of the return spring 22 is opened in the middle of the locking sleeve 3. The locking sleeve 3 moves sequentially under force, compressing the return spring 22. When no force is applied, the return spring 22 drives the locking sleeve 3 to reset, thereby completing the contact between the guide groove 6 and the limiting steel ball 5 at different positions.

[0026] like Figure 4-5As shown, the clamping assembly includes a clamping shaft 8. One end of the clamping shaft 8 is provided with a clamping device 9 connected to the bit 2, and the other end is provided with a connector 10 connected to an external drive source. A limiting pin 11 is provided in the middle of the clamping shaft 8. A through groove 19 corresponding to the position of the limiting pin 11 is provided on the side wall of the positioning sleeve 1. The upper end of the limiting pin 11 is located in the through groove 19. A storage cavity 20 for installing the limiting pin 11 is provided on the side wall of the clamping shaft 8. A pressing spring 21 is provided at the bottom of the storage cavity 20. When the bit 2 needs to be replaced, the limiting pin 11 is pressed down, and the pressing spring 21 retracts accordingly. After the end of the limiting pin 11 sinks down, it separates from the positioning sleeve 1. Then, the clamping shaft 8 is pulled outward to take the bit 2 away for replacement.

[0027] The clamp 9 includes a slider 12, on the outer side wall of the slider 12 is an elastic clamping plate 13, and the side wall of the positioning sleeve 1 is provided with a through hole 14 corresponding to the position of the elastic clamping plate 13. A limiter 15 is provided in the through hole 14. The limiter 15 is made of steel ball. When changing the bit 2, the locking sleeve 3 needs to be pulled back to cover the top of the through hole 14. At this time, the limiter 15 is squeezed by the box and applies pressure to the elastic clamping plate 13, so that the elastic clamping plate 13 can clamp the bit 2, which facilitates the movement of the bit 2.

[0028] The front end of the clamping shaft 8 is provided with a guide post 16 for mounting the slider 12. The guide post 16 is provided with a buffer spring assembly 17 located between the slider 12 and the clamping shaft 8. The buffer spring assembly 17 includes a main spring and a slider spring. The two springs are directly provided with washers. The two springs can better cope with the pressure generated when nailing and changing the bit 2, and extend the service life of the equipment.

[0029] A magnetic block 18 is provided at the end of the guide post 16 facing the bit 2. The magnetic block 18 is used to attract the bit 2 and cooperates with the elastic clamp 13 to improve the connection strength between the bit 2 and the clamp 9, making it easier to disassemble and replace.

[0030] It should be noted that in the description of this utility model, terms such as "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," which indicate direction or positional relationships, are based on the direction or positional relationships shown in the accompanying drawings. These are used merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0031] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0032] The term "comprising" or any other similar term is intended to cover non-exclusive inclusion, such that a process, article, or apparatus / device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to those processes, articles, or apparatus / devices.

[0033] The technical solution of this utility model has been described in conjunction with the preferred embodiments shown in the accompanying drawings. However, it will be readily understood by those skilled in the art that the protection scope of this utility model is obviously not limited to these specific embodiments. Without departing from the principle of this utility model, those skilled in the art can make equivalent changes or substitutions to the relevant technical features, and the technical solutions after these changes or substitutions will all fall within the protection scope of this utility model.

Claims

1. A nail-driving head, comprising a positioning sleeve (1), wherein a nail bit (2) is disposed within the positioning sleeve (1), characterized in that: One end of the positioning sleeve (1) is provided with a slidingly installed locking sleeve (3), and the other end is provided with a clamping assembly connected to the bit (2); The positioning sleeve (1) has a clamping sleeve (4) for placing screws at its front end. The clamping sleeve (4) has a limiting steel ball (5) on its side wall. The locking sleeve (3) has a guide groove (6) on its inner side wall that corresponds to the position of the limiting steel ball (5). The depth of the guide groove (6) gradually decreases as it extends inward from the end of the locking sleeve (3).

2. The nail head according to claim 1, characterized in that: The number of the limiting steel balls (5) is multiple and they are evenly distributed along the circumference of the locking sleeve (3).

3. The nail head according to claim 1, characterized in that: A return spring (22) is provided on the outer wall of the positioning sleeve (1), and a clearance chamber (7) corresponding to the position of the return spring (22) is provided in the middle of the locking sleeve (3).

4. The nail head according to claim 1, characterized in that: The clamping assembly includes a clamping shaft (8), one end of which is provided with a clamp (9) and the other end is provided with a connector (10), and a limit pin (11) is provided in the middle of the clamping shaft (8).

5. The nail head according to claim 4, characterized in that: The clamp (9) includes a slider (12), an elastic clamp (13) is provided on the outer side wall of the slider (12), and a through hole (14) corresponding to the position of the elastic clamp (13) is provided on the side wall of the positioning sleeve (1), and a limiter (15) is provided in the through hole (14).

6. The nail head according to claim 5, characterized in that: The front end of the clamping shaft (8) is provided with a guide post (16) for mounting the slider (12), and a buffer spring assembly (17) is provided on the guide post (16) between the slider (12) and the clamping shaft (8).

7. The nail head according to claim 6, characterized in that: A magnetic block (18) is provided at the end of the guide post (16) facing the bit (2).

8. The nail head according to claim 4, characterized in that: The side wall of the positioning sleeve (1) is provided with a through groove (19) corresponding to the position of the limiting pin (11), and the upper end of the limiting pin (11) is located in the through groove (19).

9. The nail head according to claim 8, characterized in that: The clamping shaft (8) has a storage cavity (20) on its side wall for installing a limiting pin (11), and a pressing spring (21) is provided at the bottom of the storage cavity (20).

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