Combined screwdriver bar capable of replacing the cutter head with one hand

Abstract

The utility model relates to the technical field of hardware tools, and particularly discloses a combined screwdriver rod with a tool head that can be replaced with one hand, wherein a second connecting ring is fixedly installed at the bottom of the connecting rod, a rotating rod is rotatably installed inside the second connecting ring, a torsion spring is sleeved on the rotating rod, a spring is fixedly installed at the bottom of the second connecting ring, a connecting disk is fixedly installed at the bottom of the spring, and a sleeve is fixedly installed on a side wall of the connecting disk. When the tool head needs to be replaced, a pressing column is pressed, and the pressing column drives the connecting rod to move from top to bottom, and the connecting rod drives the second connecting ring to move from top to bottom. The second connecting ring moves from top to bottom to compress the spring. At the same time, the second connecting ring drives a clamping strip to move from top to bottom. When the clamping strip contacts the side wall of the connecting disk, the clamping strip starts to flip from the middle to the surrounding areas, and the mounting disk is separated from the clamping strip and slides out along the inner wall of the tool handle, and vice versa. The tool head can be quickly replaced with one hand, thereby achieving the function of quickly replacing the tool head with one hand.

Description

Technical Field

[0001] The utility model relates to the technical field of hardware tools, in particular to a combined screwdriver bar with a tool head that can be replaced by one hand. Background Art

[0002] A screwdriver is a hand tool that is used to install or remove screws by rotating the handle of the screwdriver with the connecting rod. The screwdriver head set at the front end of the connecting rod applies torque to the screw. Screwdrivers are widely used in various industries such as machinery, electricity, electronics, automobiles, glasses, clocks, etc., and there are many types of screwdrivers with different functions, lengths, and sizes.

[0003] For example, a Chinese patent discloses: a combined screwdriver, patent number: CN215394911U, which can effectively extend the length of the screwdriver screw by using multiple connecting rods for threaded connection, so that the device can adapt to narrow spaces of different depths, and the threaded grooves arranged at the bottom of the connecting rod can be threaded with different tool heads, so that the screwdriver can be used for multiple purposes, effectively improving the practicality of the screwdriver, and an LED light is also arranged at the bottom of the handle, which can effectively provide fill light when the light is dim, thereby facilitating the use of the screwdriver.

[0004] However, during the implementation of the above technical solution, it was found that there are at least the following technical problems: as mentioned above, the device installs the cutter head through threads. If the object needs to be supported when repairing the object and the screwdriver head can only be replaced with one hand, the device makes it difficult to complete the replacement of the cutter head with one hand. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies in the prior art, the utility model provides a combined screwdriver rod with a single-handed replaceable blade head, which solves the technical problem that the device as described above installs the blade head through threads, and if the object needs to be supported when repairing the object, the blade head of the screwdriver can only be replaced with one hand, and it is difficult to complete the replacement of the blade head with one hand.

[0007] (II) Technical solution

[0008] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0009] A combined screwdriver rod with a replaceable tool head by one hand comprises a handle, a first connecting ring is fixedly installed inside the handle, a connecting rod is slidably installed inside the first connecting ring, a second connecting ring is fixedly installed at the bottom of the connecting rod, a rotating rod is rotatably installed inside the second connecting ring, a torsion spring is sleeved on the rotating rod, a clamping mechanism is fixedly installed on the side wall of the rotating rod, the clamping mechanism comprises a clamping strip, a spring is fixedly installed at the bottom of the second connecting ring, a connecting disk is fixedly installed at the bottom of the spring, and a sleeve is fixedly installed on the side wall of the connecting disk.

[0010] Preferably, a mounting plate is movably mounted on the bottom of the connecting plate.

[0011] Preferably, a cutter head is fixedly mounted on the bottom of the mounting plate.

[0012] Preferably, a sliding block is fixedly mounted on the side wall of the cutter head.

[0013] Preferably, a connecting block is slidably mounted on the side wall of the cutter head.

[0014] Preferably, a first thread groove is formed on the top of the connecting rod, and a bolt is threadedly installed inside the first thread groove;

[0015] Wherein, a pressing column is fixedly installed on the top of the bolt, and a second thread groove is opened inside the bolt.

[0016] (III) Beneficial effects

[0017] When the cutter head needs to be replaced, the pressing column is pressed, and the pressing column drives the connecting rod to move from top to bottom, and the connecting rod drives the second connecting ring to move from top to bottom. The second connecting ring moves from top to bottom to compress the spring. At the same time, the second connecting ring causes the clamping strip to move from top to bottom. When the clamping strip contacts the side wall of the connecting disk, the clamping strip begins to flip from the middle to the surrounding areas, and the mounting disk is separated from the clamping strip and slides out along the inner wall of the knife handle, and vice versa. The cutter head can be quickly replaced with one hand, thereby achieving the function of quickly replacing the cutter head with one hand. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiments of the utility model in conjunction with the accompanying drawings.

[0019] Figure 1 It is a three-dimensional structural diagram of the utility model;

[0020] Figure 2 This is a structural diagram of the connection block of the utility model;

[0021] Figure 3 This is a structural diagram of the cutter head of the utility model;

[0022] Figure 4 This is a bolt structure diagram of the utility model.

[0023] Legend: 11. Tool handle; 12. First connecting ring; 13. Second connecting ring; 14. Rotating rod; 15. Snap-on strip; 16. Spring; 17. Connecting plate; 18. Sleeve; 19. Mounting plate; 21. Tool head; 22. Slider; 23. Connecting block; 24. Connecting rod; 25. Bolt; 26. Press column. DETAILED DESCRIPTION

[0024] The embodiment of the present application provides a combined screwdriver rod with a single-handed replaceable blade head, which effectively solves the problem that the device described above installs the blade head through threads. If the object needs to be supported when repairing an object and the blade head of the screwdriver can only be replaced with one hand, it is difficult for the device to complete the replacement of the blade head with one hand. When not in use, the bolt is rotated counterclockwise from the inside of the first connecting ring to prevent the connecting rod from being squeezed during the installation process so that the blade head does not fall off from the inside of the handle. The bolt is rotated to the side wall of the blade head through the second threaded groove to prevent the handle from being squeezed during the installation process so that the blade head does not injure the staff, thereby improving the screw thread. The safety of screwdriver installation is improved, thereby achieving the function of improving the safety of screwdriver installation. When the cutter head needs to be replaced, the pressing column is pressed, and the pressing column drives the connecting rod to move from top to bottom, and the connecting rod drives the second connecting ring to move from top to bottom. The second connecting ring moves from top to bottom to compress the spring. At the same time, the second connecting ring causes the clamping strip to move from top to bottom. When the clamping strip contacts the side wall of the connecting disk, the clamping strip starts to flip from the middle to the surrounding areas, and the installation disk is separated from the clamping strip and slides out along the inner wall of the handle, and vice versa. The cutter head can be quickly replaced with one hand, thereby achieving the function of quickly replacing the cutter head with one hand.

[0025] Example

[0026] like Figure 1 , Figure 2 , Figure 3 and Figure 4As shown, the technical solution in the embodiment of the present application is to effectively solve the technical problem that the device as mentioned above installs the tool head through a thread. If the object needs to be supported when repairing the object, the tool head of the screwdriver can only be replaced with one hand, and the device is difficult to complete the replacement of the tool head with one hand. The overall idea is as follows: a combined screwdriver rod with a tool head that can be replaced with one hand, including a handle 11, a first connecting ring 12 is fixedly installed inside the handle 11, a connecting rod 24 is slidably installed inside the first connecting ring 12, a second connecting ring 13 is fixedly installed at the bottom of the connecting rod 24, a rotating rod 14 is rotatably installed inside the second connecting ring 13, a torsion spring is sleeved on the rotating rod 14, and a clamping mechanism is fixedly installed on the side wall of the rotating rod 14, the clamping mechanism includes a clamping strip 15, and the second connecting ring 13 is fixedly installed at the bottom of the connecting rod 24. A spring 16 is fixedly installed at the bottom of the ring 13, and a connecting disk 17 is fixedly installed at the bottom of the spring 16. A sleeve 18 is fixedly installed on the side wall of the connecting disk 17. When the cutter head 21 needs to be replaced, the pressing column 26 is pressed, and the pressing column 26 drives the connecting rod 24 to move from top to bottom, and the connecting rod 24 drives the second connecting ring 13 to move from top to bottom. The movement of the second connecting ring 13 from top to bottom compresses the spring 16. At the same time, the second connecting ring 13 causes the clamping strip 15 to move from top to bottom. When the clamping strip 15 contacts the side wall of the connecting disk 17, the clamping strip 15 starts to flip from the middle to the surrounding areas, and the mounting disk 19 disengages from the clamping strip 15 and slides out along the inner wall of the handle 11, and vice versa. The cutter head can be quickly replaced with one hand, thereby achieving the function of quickly replacing the cutter head with one hand.

[0027] The sleeve 18 is fixedly installed at the bottom of the first connecting ring 12, a mounting plate 19 is movably installed at the bottom of the connecting plate 17, the clamping strip 15 is clamped at the bottom of the mounting plate 19, a cutter head 21 is fixedly installed at the bottom of the mounting plate 19, and a slider 22 is fixedly installed on the side wall of the cutter head 21 to ensure that the cutter head can unscrew the screw when the screwdriver is in use.

[0028] The slider 22 is slidably installed inside the tool handle 11, and a connecting block 23 is slidably installed on the side wall of the tool head 21. The side wall of the connecting block 23 is fixedly installed inside the tool handle 11. A first thread groove is provided on the top of the connecting rod 24, and a bolt 25 is threadedly installed inside the first thread groove. A pressing column 26 is fixedly installed on the top of the bolt 25, and a second thread groove is provided inside the bolt 25. When not in use, the bolt 25 is rotated counterclockwise out of the first connecting ring 12 to prevent the connecting rod 24 from being squeezed during the loading process, so that the tool head 21 is prevented from falling off from the tool handle 11. The bolt 25 is rotated to the side wall of the tool head 21 through the second thread groove to prevent the tool handle 11 from being squeezed during loading, so that the tool head 21 may injure the staff, thereby improving the safety of screwdriver loading, thereby achieving the function of improving the safety of screwdriver loading.

[0029] In view of the problems existing in the prior art, the utility model provides a combined screwdriver rod with a single-handedly replaceable cutter head. When not in use, the bolt 25 is rotated counterclockwise out of the first connecting ring 12 to prevent the connecting rod 24 from being squeezed during the installation process, so that the cutter head 21 is prevented from falling off from the inside of the handle 11. The bolt 25 is rotated to the side wall of the cutter head 21 through the second threaded groove to prevent the handle 11 from being squeezed during the installation, so that the cutter head 21 can stab the staff, thereby improving the safety of the screwdriver installation, thereby achieving the function of improving the safety of the screwdriver installation. When the cutter head 21 needs to be replaced, The pressing column 26 is pressed, and the pressing column 26 drives the connecting rod 24 to move from top to bottom, and the connecting rod 24 drives the second connecting ring 13 to move from top to bottom. The second connecting ring 13 moves from top to bottom so that the spring 16 is compressed. At the same time, the second connecting ring 13 drives the clamping strip 15 to move from top to bottom. When the clamping strip 15 contacts the side wall of the connecting plate 17, the clamping strip 15 starts to flip from the middle to the surrounding areas, and the mounting plate 19 is separated from the clamping strip 15 and slides out along the inner wall of the handle 11, and vice versa. The tool head can be quickly replaced with one hand, thereby achieving the function of quickly replacing the tool head with one hand.

[0030] Working principle:

[0031] The first step is to rotate the bolt 25 counterclockwise out of the first connecting ring 12 when not in use to prevent the connecting rod 24 from being squeezed during the installation process so that the cutter head 21 may fall off from the handle 11. The bolt 25 is rotated to the side wall of the cutter head 21 through the second threaded groove to prevent the handle 11 from being squeezed during installation so that the cutter head 21 may injure the staff, thereby improving the safety of the screwdriver installation.

[0032] In the second step, when the cutter head 21 needs to be replaced, the pressing column 26 is pressed, and the pressing column 26 drives the connecting rod 24 to move from top to bottom, and the connecting rod 24 drives the second connecting ring 13 to move from top to bottom. The second connecting ring 13 moves from top to bottom to compress the spring 16. At the same time, the second connecting ring 13 drives the clamping strip 15 to move from top to bottom. When the clamping strip 15 contacts the side wall of the connecting plate 17, the clamping strip 15 starts to flip from the middle to the surrounding areas, and the mounting plate 19 disengages from the clamping strip 15 and slides out along the inner wall of the handle 11, and vice versa. The cutter head can be quickly replaced with one hand, thereby achieving the function of quickly replacing the cutter head with one hand.

[0033] Finally, it should be noted that: Obviously, the above embodiments are only examples for clearly explaining the present invention, and are not intended to limit the implementation methods. For ordinary technicians in the relevant field, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived from this are still within the scope of protection of the present invention.

Claims

1. A combined screwdriver bar with a single-handed replaceable bit, comprising a handle (11) and a first connecting ring (12), characterized in that: A connecting rod (24) is slidably mounted inside the first connecting ring (12), and a second connecting ring (13) is fixedly mounted on the bottom of the connecting rod (24); Wherein, a rotating rod (14) is rotatably mounted inside the second connecting ring (13), and a torsion spring is sleeved on the rotating rod (14); A clamping mechanism is fixedly mounted on the side wall of the rotating rod (14), the clamping mechanism comprising a clamping strip (15), a spring (16) is fixedly mounted on the bottom of the second connecting ring (13), a connecting disk (17) is fixedly mounted on the bottom of the spring (16), and a sleeve (18) is fixedly mounted on the side wall of the connecting disk (17).

2. A combined screwdriver bar with a single-handed replaceable bit as claimed in claim 1, characterized in that: The sleeve (18) is fixedly installed at the bottom of the first connecting ring (12); Wherein, a mounting plate (19) is movably mounted on the bottom of the connecting plate (17).

3. A combined screwdriver bar with a single-handed replaceable bit as claimed in claim 2, characterized in that: The clamping strip (15) is clamped on the bottom of the mounting plate (19); Wherein, a cutter head (21) is fixedly mounted on the bottom of the mounting plate (19).

4. A combined screwdriver bar with a single-handed replaceable bit as claimed in claim 3, characterized in that: A slider (22) is fixedly mounted on the side wall of the cutter head (21); The sliding block (22) is slidably installed inside the knife handle (11).

5. A combined screwdriver bar with a single-handed replaceable bit as claimed in claim 4, characterized in that: A connecting block (23) is slidably mounted on the side wall of the cutter head (21); Wherein, the side wall of the connecting block (23) is fixedly installed inside the knife handle (11).

6. A combined screwdriver bar with a single-handed replaceable bit as claimed in claim 5, characterized in that: A first thread groove is formed on the top of the connecting rod (24), and a bolt (25) is threadedly installed inside the first thread groove; A pressing column (26) is fixedly mounted on the top of the bolt (25), and a second thread groove is provided inside the bolt (25).

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