An output extension sleeve for power tools
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-24
- Publication Date
- 2026-08-14
AI Technical Summary
[0002]在电动工具领域，批头是用于拧紧或拆卸螺丝、螺栓等紧固件的关键配件，广泛应用于电动螺丝刀、冲击起子、电钻等工具中，在电动工具使用时，偶尔需要对电动工具上的批头进行延长，此时用户只能借助更长的批头或是延长套，传统延长套杆通常采用机械卡扣、螺纹连接或弹簧钢珠锁定等方式固定工具输出端，然而此类连接方式较为麻烦，同时结构较为复杂，制造与维护成本较高，因此，如何解决上述问题，是本申请的目的
[0012]本申请的有益效果在于：在电动工具的输出端插入连接孔内时，磁性块能够自动吸附住电动工具输出端的一面，使电动工具与本申请的延长套杆自己吸附并快速安装；内六角段能够限制电动工具输出端在连接孔内转动，卡簧能够限制电动工具输出端轴向移动。
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Figure CN224630663U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of power tool technology, and in particular to an output extension sleeve for power tools. Background Technology
[0002] In the field of power tools, screwdriver bits are key accessories used to tighten or loosen screws, bolts and other fasteners. They are widely used in tools such as electric screwdrivers, impact screwdrivers and electric drills. When using power tools, it is sometimes necessary to extend the screwdriver bits. At this time, users can only use longer screwdriver bits or extension sleeves. Traditional extension sleeves usually use mechanical clips, threaded connections or spring ball locking to fix the output end of the tool. However, such connection methods are relatively troublesome, and the structure is relatively complex, with high manufacturing and maintenance costs. Therefore, how to solve the above problems is the purpose of this application.
[0003] The above content is only used to help understand the technical solution of this application and does not represent an admission that the above content is the closest prior art to this application. Summary of the Invention
[0004] Based on this, this application provides an output end extension sleeve for power tools to solve one of the above-mentioned technical problems.
[0005] The technical solution adopted by this application to solve its technical problem is an output end extension sleeve for power tools, comprising: a connecting section having a connecting hole on one side, at least a portion of the connecting hole matching the output end of the power tool, a magnetic block being provided at the bottom of the connecting hole, and the output end of the power tool being able to be inserted into the connecting hole and magnetically connected to the magnetic block; and an output section being disposed on one side of the connecting section and serving as the output end of the power tool.
[0006] In some embodiments, the connection hole is provided with an internal hexagonal segment, and the output end of the power tool is hexagonal and can be inserted into the internal hexagonal segment to connect with the magnetic block.
[0007] In some embodiments, the diameter of the connecting hole is equal to the diameter of the circumscribed circle of the internal hexagon segment.
[0008] In some embodiments, a circular groove is provided in the connecting hole for placing a retaining ring.
[0009] In some embodiments, the diameter of the retaining ring and the circular groove is larger than the inscribed circle of the internal hexagon segment.
[0010] In some embodiments, the magnetic force of the magnetic block is not less than 10N.
[0011] In some embodiments, a mounting hole is provided at the bottom of the connection hole, and the magnetic block is cylindrical and installed in the mounting hole.
[0012] The beneficial effects of this application are as follows: when the output end of the power tool is inserted into the connecting hole, the magnetic block can automatically attract one side of the output end of the power tool, so that the power tool and the extension sleeve of this application can be attracted to each other and installed quickly; the internal hexagonal section can restrict the rotation of the output end of the power tool in the connecting hole, and the snap ring can restrict the axial movement of the output end of the power tool. Attached Figure Description
[0013] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0014] Figure 1 This is a schematic diagram of the structure of this application.
[0015] Figure 2 This is a schematic diagram of the magnetic block installation according to this application.
[0016] Figure 3 This is a cross-sectional view and a partially enlarged schematic diagram of this application.
[0017] The following are the reference numerals: 1. Connecting section; 11. Connecting hole; 111. Hexagonal socket section; 112. Circular groove; 113. Snap ring; 114. Mounting hole; 12. Magnetic block; 2. Output section. Detailed Implementation
[0018] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application. In addition, the technical solutions of various embodiments can be combined with each other, but this must be based on the ability of those of ordinary skill in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection of this application.
[0019] In the embodiments of this application, please refer to Figure 1-3As shown, this application provides an output extension sleeve for power tools, mainly comprising: a connecting section 1, on one side of which a connecting hole 11 is provided, at least a portion of which matches the output end of the power tool, and a magnetic block 12 is provided at the bottom of the connecting hole 11, so that the output end of the power tool can be inserted into the connecting hole 11 and magnetically connected to the magnetic block 12; and an output section 2, disposed on one side of the connecting section 1, which can serve as the output end of the power tool.
[0020] Specifically, a connecting hole 11 is provided on one side of the connecting section 1 for matching and connecting with the output end of the power tool. A magnetic block 12 is provided at the bottom of the connecting hole 11. When the output end of the power tool is inserted into the connecting hole 11, the magnetic block 12 can automatically attract the output end, ensuring a stable axial connection and preventing the sleeve from falling off during high-speed rotation. The output section 2, as an extended output end, can directly install tool accessories such as screwdriver bits and sockets, realizing the extended operation function of the power tool.
[0021] The following will continue to describe some preferred / improved embodiments based on the above embodiments. Any one of the following embodiments can be selected, or multiple embodiments can be combined.
[0022] Reference Figure 2 As shown, an internal hexagonal segment 111 is provided inside the connection hole 11. The output end of the power tool is hexagonal and can be inserted into the internal hexagonal segment to connect with the magnetic block 12. This design prevents the output end of the power tool from rotating inside the connection hole 11 when it is inserted into the connection hole 11, thus preventing slippage.
[0023] Specifically, the diameter of the connecting hole 11 is equal to the diameter of the circumscribed circle of the internal hexagon segment 111. This arrangement ensures that the connecting hole 11 and the internal hexagon segment 111 fit tightly together, reducing gaps and improving transmission accuracy and stability.
[0024] Furthermore, a circular groove 112 is provided in the connection hole 11 for placing a retaining ring 113. The retaining ring 113 can further fix the output end of the power tool and prevent it from accidentally coming out during operation.
[0025] Reference Figure 3 As shown, in order to ensure that the snap ring 113 can effectively hold the output end, and at the same time avoid interfering with the normal assembly of the internal hexagonal segment 111, the diameter of the snap ring 113 and the circular groove 112 is larger than the inscribed circle of the internal hexagonal segment 111.
[0026] To ensure sufficient adsorption force on the output end of the power tool (such as adsorbing a 25mm bit) and to prevent the sleeve from loosening and falling off during vibration or high-speed rotation, the magnetic force of the magnetic block 12 is not less than 10N.
[0027] Reference Figure 2As shown, the bottom of the connecting hole 11 is provided with a mounting hole 114. The magnetic block 12 is cylindrical and is installed in the mounting hole 114. This arrangement allows the cylindrical magnetic block 12 to be embedded in the hole, making the magnetic block 12 secure and preventing displacement due to vibration or impact, while ensuring stable adsorption with the output end.
[0028] The various embodiments of this application have been described in detail above. To avoid obscuring the concept of this application, some details known in the art have not been described. Those skilled in the art can fully understand how to implement the technical solutions disclosed herein based on the above description. Finally, it should be noted that the above descriptions are merely preferred embodiments of this application, and the foregoing embodiments are only used to illustrate the technical solutions of this application, not to limit them; although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.
Claims
1. An output end extension sleeve for a power tool, characterized in that, include: The connecting section has a connecting hole on one side, at least a portion of which matches the output end of the power tool. A magnetic block is provided at the bottom of the connecting hole, and the output end of the power tool can be inserted into the connecting hole and magnetically connected to the magnetic block. The output section, located on one side of the connecting section, can serve as the output end of a power tool.
2. The output end extension sleeve for a power tool according to claim 1, characterized in that, The connection hole is provided with an internal hexagonal segment, and the output end of the power tool is hexagonal and can be inserted into the internal hexagonal segment to connect with the magnetic block.
3. The output end extension sleeve for a power tool according to claim 2, characterized in that, The diameter of the connecting hole is equal to the diameter of the circumscribed circle of the internal hexagon segment.
4. The output end extension sleeve for a power tool according to claim 2, characterized in that, A circular groove is provided inside the connecting hole for placing the retaining ring.
5. The output end extension sleeve for a power tool according to claim 4, characterized in that, The diameter of the retaining ring and the circular groove is larger than the inscribed circle of the internal hexagon segment.
6. The output end extension sleeve for a power tool according to claim 1, characterized in that, The magnetic force of the magnetic block is not less than 10N.
7. The output end extension sleeve for a power tool according to claim 1, characterized in that, The bottom of the connection hole has an installation hole, and the magnetic block is cylindrical and installed in the installation hole.