Highly practical quick-release connecting rod for connecting screwdriver head and electric tool

Abstract

The utility model discloses a high-practicability quick-release connecting rod for connecting a bit and an electric tool, relates to the technical field of tools, and aims to solve the problems that the existing electric tool has defects in fixed linkage of bits, sleeves and drills with different lengths and different types, the application range needs to be improved, and the electric tool cannot be used for fixing and connecting the bits, the sleeves and the drills. According to the key points of the technical scheme, the device comprises a connecting rod, an end head is installed outside one end of the connecting rod, a plurality of steel balls are arranged in a gap between the end head and the connecting rod, an inner hexagonal hole is formed in the end face of the connecting rod, and the inner hexagonal hole is communicated with the end head. The inner wall of the inner hexagonal hole is provided with a plurality of locking holes, the steel balls are arranged in the locking holes, the outer portion of the connecting rod is slidably sleeved with a movable lock catch sleeve, and one end of the movable lock catch sleeve is inserted into a gap between the end and the connecting rod. And the effects of being capable of adapting to fixed linkage of the bits, the sleeves and the drill bits of different lengths and different types, high in practicability and high in use convenience are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of tools, in particular to a quick-release connecting rod for highly practical connection between a bit and a power tool. Background Art

[0002] With the development of industry, more and more industrial operations use power tools to replace traditional manual tools to improve operation convenience and work efficiency, including electric drills, electric screwdrivers, and so on.

[0003] Existing power tools have deficiencies in the fixed linkage of bits, sockets, and drill bits with different lengths and types, and the scope of application needs to be improved. The overall use convenience and practicality need to be improved. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a quick-release connecting rod for highly practical connection between a bit and a power tool, which can adapt to the fixed linkage of bits, sockets, and drill bits with different lengths and types, has strong practicality, and high use convenience.

[0005] To achieve the above purpose, the utility model provides the following technical solutions:

[0006] A quick-release connecting rod for highly practical connection between a bit and a power tool includes a connecting rod. One end of the connecting rod is externally provided with a head. A plurality of steel balls are arranged inside the gap between the head and the connecting rod. An internal hexagonal hole is arranged on the end face of the connecting rod. A plurality of locking holes are arranged on the inner wall of the internal hexagonal hole. The steel balls are placed inside the locking holes. An activity locking sleeve is slidably sleeved outside the connecting rod. One end of the activity locking sleeve is inserted into the gap between the head and the connecting rod.

[0007] By adopting the above technical solution, the locking operation of bits with different lengths and types can be effectively carried out, and the practicality is strong.

[0008] Further, a second spring is snap-fitted and installed at the bottom end inside the internal hexagonal hole.

[0009] By adopting the above technical solution, the second spring can be used to improve the disassembly convenience of the bit.

[0010] Further, a first spring is arranged inside the gap between the activity locking sleeve and the connecting rod. The first spring is sleeved outside the connecting rod. A retaining ring is arranged at one end of the first spring. A circlip is arranged on one side of the retaining ring. The circlip is snap-fitted into a groove on the side surface of the connecting rod.

[0011] By adopting the above technical solution, the first spring is used to ensure the stable position of the activity locking sleeve and ensure the locking stability of the bit.

[0012] Further, an inner ejector rod is installed at the inner bottom end of the hexagon socket, and the inner ejector rod penetrates through the inside of the second spring.

[0013] By adopting the above technical solution, the working stability of the bit can be ensured by using the inner ejector rod.

[0014] Further, one end of the connecting rod is integrally connected with a hexagonal connecting rod.

[0015] By adopting the above technical solution, the situation of the device slipping can be effectively avoided.

[0016] Further, a locking groove is arranged on the side surface of the hexagonal connecting rod.

[0017] By adopting the above technical solution, the device can be firmly locked on an external power tool.

[0018] In summary, the beneficial technical effects of the present utility model are as follows:

[0019] 1. When the present utility model is in use, a corresponding bit can be selected, and then one end of the bit is inserted into the inside of the hexagon socket. When inserting, the movable lock sleeve is toggled backward, so that one end of the movable lock sleeve is separated from the steel ball, and the steel ball retracts into the gap between the connecting rod and the end head. At this time, the steel ball does not hinder the insertion of the bit. Then the bit is inserted into the hexagon socket, and then the movable lock sleeve is released. Under the action of the retaining ring and the first spring, the movable lock sleeve resets, and one end of the movable lock sleeve pushes the steel ball, and the steel ball is re-locked into the lock groove of the bit, so as to limit and lock the bit. The device can effectively adapt to bits of different lengths and different types, as well as the locking linkage of sleeves and drill bits;

[0020] 2. The present utility model is provided with a second spring at the inner bottom end of the hexagon socket. When the bit is inserted, one end of the bit compresses the second spring. During use, the stability of the bit can be effectively improved. At the same time, when the bit is replaced after use, the compressed second spring is released, and the second spring can effectively eject the bit out of the hexagon socket, realizing a quick bit disassembly and replacement operation, and effectively improving the convenience and practicality of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is the first perspective view of the three-dimensional structure of the present utility model;

[0022] Figure 2 is the second perspective view of the three-dimensional structure of the present utility model;

[0023] Figure 3 is the internal structure diagram of the present utility model.

[0024] In the figure: 1. Hexagonal connecting rod; 2. Movable lock sleeve; 3. End head; 4. Locking groove; 5. Hexagonal socket; 6. Connecting rod; 7. First spring; 8. Retaining ring; 9. Snap ring; 10. Second spring; 11. Locking hole; 12. Steel ball; 13. Inner ejector rod. Detailed implementation mode

[0025] The following further elaborates on the method of the present utility model in conjunction with the attached drawings.

[0026] Refer to Figure 1 , Figure 2 , Figure 3 , a quick-release adapter for connecting a highly practical connecting bit and a power tool, including a connecting rod 6. One end of the connecting rod 6 is externally provided with an end head 3. A plurality of steel balls 12 are arranged inside the gap between the end head 3 and the connecting rod 6. The end face of the connecting rod 6 is provided with a hexagonal socket 5. A plurality of locking holes 11 are arranged on the inner wall of the hexagonal socket 5. The steel balls 12 are placed inside the locking holes 11. The outside of the connecting rod 6 is slidably sleeved with a movable lock sleeve 2. One end of the movable lock sleeve 2 is inserted into the gap between the end head 3 and the connecting rod 6. A first spring 7 is arranged inside the gap between the movable lock sleeve 2 and the connecting rod 6. The first spring 7 is sleeved outside the connecting rod 6. One end of the first spring 7 is provided with a retaining ring 8. A snap ring 9 is arranged on one side of the retaining ring 8. The snap ring 9 is buckled in the card slot on the side surface of the connecting rod 6. When in use, a corresponding bit, socket, or drill bit can be selected, and then one end of the bit is inserted into the hexagonal socket 5. When inserting, the movable lock sleeve 2 is pushed backward, so that one end of the movable lock sleeve 2 is separated from the steel ball 12, and the steel ball 12 retracts into the gap between the connecting rod 6 and the end head 3. At this time, the steel ball 12 does not hinder the insertion of the bit. Then the bit is inserted into the hexagonal socket 5, and then the movable lock sleeve 2 is released. Under the action of the retaining ring 8 and the first spring 7, the movable lock sleeve 2 resets. One end of the movable lock sleeve 2 pushes the steel ball 12, and the steel ball 12 is re-locked into the locking groove of the bit, so as to limit and lock the bit. This device can effectively adapt to bits, sockets, and drill bits of different lengths and types for locking linkage.

[0027] Refer to Figure 3. A second spring 10 is snap-fitted and installed at the inner bottom end of the hexagonal socket 5. An inner ejector rod 13 is installed at the inner bottom end of the hexagonal socket 5. The inner ejector rod 13 penetrates through the inside of the second spring 10. By installing the second spring 10 at the inner bottom end of the hexagonal socket 5, when the bit is inserted, one end of the bit compresses the second spring 10. When in use, the stability of the bit can be effectively improved. At the same time, when the bit is replaced after use, the compressed second spring 10 is released, and the second spring 10 can effectively eject the bit out of the hexagonal socket 5, realizing a quick bit disassembly and replacement operation, and effectively improving the convenience and practicality of use.

[0028] Refer toFigure 1 , one end of the connecting rod 6 is integrally connected with a hexagonal connecting rod 1. A locking groove 4 is provided on the side surface of the hexagonal connecting rod 1. The hexagonal connecting rod 1 can be inserted into the jack of the power tool, and at the same time, the locking end of the power tool is locked inside the locking groove 4 to ensure that the device can be firmly fixed on the power tool.

[0029] Working principle: When in use, select the corresponding bit, socket, and drill bit. Then insert one end of the bit into the internal hexagonal hole 5. When inserting, move the movable lock sleeve 2 backward, so that one end of the movable lock sleeve 2 is separated from the steel ball 12, and the steel ball 12 retracts into the gap between the connecting rod 6 and the end 3. At this time, the steel ball 12 does not hinder the insertion of the bit. Then insert the bit into the internal hexagonal hole 5, and then release the movable lock sleeve 2. Under the action of the retaining ring 8 and the first spring 7, the movable lock sleeve 2 resets. One end of the movable lock sleeve 2 pushes the steel ball 12, and the steel ball 12 is re-locked into the locking groove of the bit, so as to limit and lock the bit. Then insert the hexagonal connecting rod 1 into the jack of the power tool, and at the same time, the locking end of the power tool is locked inside the locking groove 4 to ensure that the device can be firmly fixed on the power tool. At this time, it can be used normally. When the bit is inserted, one end of the bit compresses the second spring 10. During use, the stability of the bit can be effectively improved. At the same time, when the use is completed and the bit is replaced, release the compressed second spring 10, and the second spring 10 can effectively eject the bit out of the internal hexagonal hole 5, realizing a quick bit disassembly and replacement operation.

[0030] The embodiments of this specific implementation mode are all preferred embodiments of the present invention, and do not limit the protection scope of the present invention accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention should be covered within the protection scope of the present invention.

Claims

1. A highly practical quick-release connecting rod for connecting a screwdriver bit and an electric tool, comprising a connecting rod (6), characterized in that: An end cap (3) is installed on the outside of one end of the connecting rod (6), and a plurality of steel balls (12) are arranged inside the gap between the end cap (3) and the connecting rod (6). An inner hexagonal hole (5) is arranged on the end surface of the connecting rod (6), and a plurality of locking holes (11) are arranged on the inner wall of the inner hexagonal hole (5). The steel balls (12) are arranged inside the locking holes (11). A movable locking sleeve (2) is slidably sleeved on the outside of the connecting rod (6), and one end of the movable locking sleeve (2) is inserted into the gap between the end cap (3) and the connecting rod (6).

2. The highly practical quick-release connecting rod for connecting a screwdriver bit and an electric tool according to claim 1, characterized in that: A second spring (10) is mounted on the inner bottom end of the hexagonal hole (5).

3. The highly practical quick-release connecting rod for connecting a screwdriver bit and an electric tool according to claim 1, characterized in that: A first spring (7) is arranged inside the gap between the movable locking sleeve (2) and the connecting rod (6); the first spring (7) is sleeved on the outside of the connecting rod (6); a retaining ring (8) is arranged at one end of the first spring (7); a retaining spring (9) is arranged on one side of the retaining ring (8); and the retaining spring (9) is locked in a groove on the side surface of the connecting rod (6).

4. The highly practical quick-release connecting rod for connecting a screwdriver bit and an electric tool according to claim 2, characterized in that: An inner push rod (13) is installed at the inner bottom end of the hexagonal hole (5), and the inner push rod (13) passes through the interior of the second spring (10).

5. The highly practical quick-release connecting rod for connecting a screwdriver bit and an electric tool according to claim 1, characterized in that: One end of the connecting rod (6) is integrally connected to a hexagonal connecting rod (1).

6. A highly practical quick-release connecting rod for connecting a screwdriver bit and an electric tool according to claim 5, characterized in that: A locking groove (4) is provided on the side surface of the hexagonal connecting rod (1).

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