Adjustable length screwdriver

Abstract

The utility model discloses a screwdriver with adjustable length, comprising a handle and a shank, wherein one end of the shank is connected to the handle, and the other end is provided with a mounting port for connecting a cutter head, an axial groove for slidingly fitting with the shank is provided in the handle, a chuck connected with the axial groove is provided at one end of the handle, a sleeve is connected to the chuck through an external thread, the chuck clamps the shank, and the tightness is adjusted by rotating the sleeve. The utility model provides a screwdriver with adjustable length that can adjust the length of the screwdriver in real time, so that the screwdriver is suitable for different environments.

Description

Technical Field

[0001] The utility model relates to a screwdriver with adjustable length, belonging to the technical field of hardware tools. Background Art

[0002] A screwdriver is a tool in people's daily life, which is used to tighten or loosen various screws. However, due to different assembly environments and functions, the length of the screwdriver often needs to be changed to facilitate locking the screws. Therefore, a connecting rod must be carried separately to extend the length of the screwdriver. Moreover, the length of the connecting rod is also fixed and cannot be adjusted in real time. This is quite inconvenient in use. Summary of the invention

[0003] The technical problem to be solved by the utility model is to provide a screwdriver with adjustable length, which can adjust the length of the screwdriver in real time so as to make it suitable for different environments, thereby solving the shortcomings of the prior art.

[0004] The technical solution of the utility model is: a length-adjustable screwdriver, comprising a handle and a shank, wherein one end of the shank is connected to the handle, and the other end is provided with a mounting opening for connecting a cutter head, an axial groove slidingly matched with the shank is provided in the handle, a chuck connected to the axial groove is provided at one end of the handle, a sleeve is externally threadedly connected to the chuck, the chuck clamps the shank, and the tightness is adjusted by rotating the sleeve.

[0005] Furthermore, a magnetic attraction element is arranged in the installation opening.

[0006] Furthermore, the knife rod has a hollow structure with a retractable telescopic rod installed inside. When the telescopic rod is extended, it can extend out of the knife rod from the installation port. A magnetic element is provided on the top of the telescopic rod. When the telescopic rod is retracted, it is stored in the knife rod. The magnetic element magnetically attracts the knife head connected to the installation port.

[0007] Furthermore, a plurality of mounting grooves are provided on the outer wall of the knife handle, and containers for mounting knife heads are installed in the mounting grooves.

[0008] Furthermore, the mounting groove is axially arranged, the container is slidably matched with the mounting groove, and can be separated from the knife handle by relative sliding. The mounting groove and the container are provided with matching limiting mechanisms, and the container can stay in a fixed position on the mounting groove through the cooperation of the limiting mechanism.

[0009] Further, the container is a transparent container.

[0010] By implementing the utility model, the chuck is clamped and cooperated with the tool rod that is slidably connected with the axial groove, the sleeve is rotated until the chuck is in a loosened state, the length of the part that exceeds the tool rod is adjusted by sliding the tool rod relative to the tool handle, the sleeve is rotated to put the chuck in a state of clamping the tool rod, and the tool rod mounting port is connected to the required tool bit for use, thereby realizing real-time adjustment of the screwdriver length, making it suitable for different environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a three-dimensional view of the first embodiment in use;

[0012] Figure 2 This is a connection diagram of Embodiment 1;

[0013] Figure 3 It is a front view of the first embodiment.

[0014] As shown in the figure: tool handle 1; tool rod 2; mounting opening 3; axial groove 4; chuck 5; jacket 6; tool head 7; container 8; clamping block 9; telescopic rod 10; magnetic element 11; clamping slot 12; mounting slot 13. DETAILED DESCRIPTION

[0015] Embodiment 1 of the present utility model: Figures 1 to 3 As shown, a length-adjustable screwdriver comprises a handle 1 and a shank 2. One end of the shank 2 is connected to the handle 1, and the other end is provided with a mounting opening 3 for connecting a cutter head. An axial groove 4 is provided in the handle 1 for slidingly fitting with the shank 2. The cross-sections of the axial groove 4 and the shank 2 are non-circular and matched. In the present application, the cross-sections of the axial groove 4 and the shank 2 are regular hexagons. A chuck 5 connected to the axial groove 4 is provided on the upper end of the handle 1. A sleeve 6 is externally threadedly connected to the chuck 5. The chuck 5 clamps the shank 1 and the tightness is adjusted by rotating the sleeve 6. When in use, when the sleeve 6 is rotated to the state where the chuck 5 is in a loosened state, the length of the part exceeding the shank 1 is adjusted by sliding the shank 2 relative to the handle 1. The sleeve 6 is then rotated to the state where the chuck 5 clamps the shank 2. The mounting opening 3 of the shank 2 is connected to the required cutter head 7 for use, so as to realize real-time adjustment of the length of the screwdriver and make it suitable for different environments.

[0016] As a preferred embodiment, a magnetic element 11 is provided in the installation port 3, and the magnetic element 11 is located at the bottom of the installation port 3. The cutter head 7 is made of steel. After being inserted into the installation port 3, the magnetic element 11 magnetically fixes it, so that it is not easy to fall off during use.

[0017] As a preferred embodiment, a plurality of mounting grooves 13 are provided on the outer wall of the handle 1, and containers 8 for holding tool bits are installed in the mounting grooves 13. Since there are many specifications and types of screws, different tool bits need to be used. The containers 8 holding the tool bits are installed in the mounting grooves 13 on the outer wall of the handle 1, so that the tool bits can be carried together with the screwdriver, which is convenient for selection and use.

[0018] As a preferred embodiment, the mounting groove 13 is axially arranged, the container 8 is slidingly matched with the mounting groove 13, the lower end of the shank 1 is the open end of the mounting groove 13, the container 8 can enter and exit the mounting groove 13 from the open end, a card slot 12 is provided on the container 8, and a matching card block 9 is provided at the bottom of the mounting groove 13. When the container 8 slides in the mounting groove 13 so that the card block 9 cooperates with the card slot 12, the container 8 stays on the mounting groove 13, which facilitates the disassembly and assembly of the container 8.

[0019] As a preference, the container 8 is a transparent container made of transparent plastic, which is convenient for viewing the blade inside so as to more quickly select a suitable blade for use.

[0020] Embodiment 2 is different from embodiment 1 in that the blade rod 2 is hollow in structure and a retractable telescopic rod 10 is installed inside. When the telescopic rod 10 is extended, it can extend out of the blade rod 2 from the mounting opening 3. A magnetic element 11 is provided on the top of the telescopic rod 10. It can be used in narrow places, such as the narrow gap between a car seat and an armrest to absorb steel objects. When the telescopic rod 10 is retracted, it is stored in the blade rod 2. The magnetic element 11 magnetically attracts the blade head 7 connected to the mounting opening 3 and is used as a normal screwdriver.

Claims

1. A screwdriver with adjustable length, comprising a handle and a shank, wherein one end of the shank is connected to the handle and the other end is provided with a mounting port for connecting a cutter head, characterized in that: The knife handle is provided with an axial groove that slides with the knife rod, and one end of the knife handle is provided with a chuck that is connected to the axial groove. The chuck is externally threaded with a sleeve, and the chuck clamps the knife rod, and the tightness is adjusted by rotating the sleeve; the knife rod is a hollow structure, and a retractable telescopic rod is installed inside. When the telescopic rod is extended, it can extend out of the knife rod from the installation port. A magnetic element is provided on the top of the telescopic rod. When the telescopic rod is retracted, it is stored in the knife rod, and the magnetic element magnetically attracts the knife bit connected to the installation port; a plurality of installation grooves are provided on the outer wall of the knife handle, and a container for the knife bit is installed in the installation groove.

2. The length-adjustable screwdriver according to claim 1, characterized in that: The mounting groove is axially arranged, the container is slidably matched with the mounting groove, and can be separated from the knife handle by relative sliding. The mounting groove and the container are provided with matching limiting mechanisms, and the container can stay in a fixed position on the mounting groove through the cooperation of the limiting mechanisms.

3. The length-adjustable screwdriver according to claim 2, characterized in that: The container is a transparent container.

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