Automatic nut socket tool
By designing an automatic nut removal socket tool, the automatic removal of nuts is achieved through the cooperation of the drive handle, inner sleeve, and protective shell. This solves the problem of inconvenient operation of existing socket wrenches, improves safety and efficiency, and reduces costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- SHAANXI GREEN ENERGY ELECTRONIC TECH CO LTD
- Filing Date
- 2026-06-25
- Publication Date
- 2026-08-04
AI Technical Summary
When loosening nuts, existing socket wrenches often cause nuts to get stuck inside the socket, requiring manual removal, which is inconvenient and affects efficiency. Furthermore, existing wrenches with spring ejection mechanisms cannot automatically adjust according to actual needs, resulting in interference from the ejection rod during tightening or incomplete unscrewing during loosening.
An automatic nut removal sleeve tool was designed, including a drive handle, an inner sleeve, and a protective sleeve. Through the cooperation of the sliding component and the protective shell, the nut can be automatically removed. When the inner sleeve rotates clockwise, the window of the protective shell is misaligned to prevent the nut from flying out. When it rotates counterclockwise, the window is aligned so that the nut can fall out automatically. The combination of high-strength alloy steel and stainless steel improves safety and durability.
It improves the efficiency and safety of loosening nuts, reduces the risk of nut jamming, has a compact structure, is easy to process and manufacture, has a low cost, and is suitable for various environments.
Smart Images

Figure CN122500642A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of nut sleeve technology, and more specifically to an automatic nut sleeve removal tool. Background Technology
[0002] When loosening a nut, the nut often gets stuck inside the socket wrench, requiring manual removal, which is inconvenient and inefficient. While some existing wrenches have spring-loaded ejection mechanisms, these mechanisms cannot automatically adjust to actual needs, often resulting in interference from the ejector rod during tightening or incomplete unscrewing during loosening.
[0003] This patent proposes an automatic nut-removing sleeve tool, which achieves a compact structure, convenient processing and manufacturing, low cost, and protection mechanism through a drive handle, inner sleeve and protective sleeve. It can cope with various environments, improve safety and efficiency, and reduce the risk of nut jamming. Summary of the Invention
[0004] The purpose of this invention is to overcome the shortcomings of the prior art and provide an automatic nut-removing socket tool to solve the problem mentioned in the background art where, when loosening a nut, the nut gets stuck inside the socket, requiring manual removal, which is inconvenient and affects efficiency. Although some wrenches in the prior art have spring-loaded ejection mechanisms, their ejection mechanisms cannot be automatically adjusted according to actual needs, often leading to interference from the ejector rod during tightening or incomplete unscrewing during loosening.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: The present invention provides an automatic nut-removing sleeve tool, including a drive handle, an inner sleeve detachably mounted on the drive handle, a protective shell provided on the outer wall of the inner sleeve, a sliding component provided between the inner sleeve and the protective shell, a sleeve window provided on the protective shell, and a protective shell window provided on the protective shell.
[0006] In one possible implementation, the upper end of the inner sleeve is provided with a mounting groove, and the lower end of the drive handle is fixed with a protrusion. Both the mounting groove and the protrusion are square and have a clearance fit.
[0007] In one possible implementation, the inner sleeve includes an outer sleeve extension edge, and the inner sleeve has a hexagonal inner cavity.
[0008] In one possible implementation, the protective shell is made of stainless steel, and the inner sleeve is made of high-strength alloy steel.
[0009] In one possible implementation, the sliding assembly includes a top annular groove and a bottom annular groove respectively formed at the upper and lower ends of the inner wall of the protective shell. The inner sleeve has circular grooves at both the upper and lower ends. A spring is fixed in the circular groove. A bottom limiting ball post is slidably connected in the lower circular groove, and a top limiting ball post is slidably connected in the upper circular groove. The bottom limiting ball post and the top limiting ball post are respectively adapted to the top annular groove and the bottom annular groove.
[0010] In one possible implementation, a top locking groove and a bottom locking groove are respectively provided in the top annular groove and the bottom annular groove, and the top locking groove and the bottom locking groove are respectively adapted to the top limiting ball post and the bottom limiting ball post.
[0011] In one possible implementation, the top limiting ball and the bottom limiting ball are offset by ninety degrees.
[0012] The beneficial effects of this invention are as follows: Compared with the prior art, this invention uses a drive handle, an inner sleeve, and a protective sleeve. The inner sleeve rotates clockwise, and the outer protective shell rotates to swap the corresponding protective shell window with the sleeve window, maintaining a misalignment. This prevents the nut from falling out of the designed window, affecting assembly, and also prevents the nut from flying out of the inner sleeve when it rotates at high speed, improving safety. During the nut loosening process, the inner sleeve rotates counterclockwise. When the inner sleeve rotates at a low speed, the top limiting ball post 6 and the bottom limiting ball post respectively engage in the top and bottom locking grooves, aligning the protective shell window with the sleeve window. The nut automatically falls out of the inner sleeve during loosening. When the inner sleeve rotates at a high speed, the misalignment between the protective shell window and the sleeve window is maintained, preventing the nut from flying out and protecting the operator's safety. This solves the problem of existing socket wrenches where the nut gets stuck inside the sleeve when loosening, requiring manual removal, which is inconvenient and affects efficiency. Although there are some wrenches with spring ejection mechanisms in the existing technology, their ejection mechanisms cannot be automatically adjusted according to actual needs, which often leads to technical problems such as interference of the ejection rod when tightening or incomplete unscrewing when loosening. Attached Figure Description
[0013] Figure 1 An exploded view of an automatic nut-removing sleeve tool provided by the present invention.
[0014] Figure 2 This is a schematic diagram of the inner sleeve in an automatic nut-removing sleeve tool provided by the present invention.
[0015] Figure 3 This is a schematic diagram of the protective shell in an automatic nut-removing sleeve tool provided by the present invention.
[0016] Figure 4 This is a schematic diagram showing the alignment of the inner and outer window layers at low speeds in an automatic nut-removing sleeve tool provided by the present invention.
[0017] Figure 5 This is a schematic diagram showing the misalignment of the inner and outer window layers in the case of high speed / fixed nut operation of an automatic nut-removing sleeve tool provided by the present invention.
[0018] Figure label: 1. Drive handle; 2. Inner sleeve; 201. Hexagonal inner cavity; 202. Outer edge of sleeve; 203. Sleeve window; 204. Bottom limiting ball post; 205. Mounting groove; 206. Top limiting ball post; 3. Protective shell; 301. Protective shell window; 302. Top locking groove; 303. Bottom locking groove; 304. Top annular groove; 305. Bottom annular groove. Detailed Implementation
[0019] To solve the above-mentioned technical problems, the present invention provides an automatic nut-removing sleeve tool. The technical solution and embodiments of the present invention will now be described in detail with reference to the accompanying drawings.
[0020] In the description of this application, it should be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.
[0021] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation", "connection" and "joining" should be interpreted broadly, for example, they can refer to fixed connection, detachable connection, or integral connection; for those skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.
[0022] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.
[0023] like Figures 1 to 5As shown, the present invention provides an automatic nut removal sleeve tool, including a drive handle 1, an inner sleeve 2 detachably mounted on the drive handle 1, a protective shell 3 on the outer wall of the inner sleeve 2, a sliding component between the inner sleeve 2 and the protective shell 3, a sleeve window 203 on the protective shell 3, and a protective shell window 301 on the protective shell 3. The drive handle 1 and the inner sleeve 2 are connected by an installation component. Rotating the drive handle 1 causes the inner sleeve 2 to rotate, thereby tightening or loosening the nut through the inner sleeve 2. The outer protective component protects the inner sleeve 2. The sliding component causes the inner sleeve 2 to rotate together with the outer protective component. With a protection mechanism, it can cope with various environments. The protective shell window 301 and the inner sleeve 2 enable the removal of the loosened nut from the inner sleeve 2, preventing the nut from getting stuck inside the inner sleeve 2.
[0024] The inner sleeve 2 has an installation groove 205 at its upper end, and a protrusion is fixed at the lower end of the drive handle 1. Both the installation groove 205 and the protrusion are square and have a clearance fit. The inner sleeve 2 includes an outer sleeve extension 202 and a hexagonal inner cavity 201. The protrusion at the lower end of the drive handle 1 is inserted into the installation groove 205 to limit the protrusion. The drive handle 1 and the inner sleeve 2 are connected for easy installation and disassembly. The protective shell 3 is installed on the outer surface of the inner sleeve 2 through the sliding component. The hexagonal inner cavity 201 is placed on the nut. By rotating the drive handle 1, the inner sleeve 2 is rotated. During the tightening of the nut, the inner sleeve 2 rotates clockwise, and the protective shell 3 on the outer layer of the inner sleeve 2 rotates to open the corresponding protective shell window. The protective shell 301 is switched to the opposite side of the sleeve window 203 to maintain a misalignment, preventing the nut from falling out of the designed window and affecting assembly. At the same time, it prevents the nut from flying out of the inner sleeve 2 when it rotates at high speed, improving safety protection. During the process of loosening the nut, the inner sleeve 2 rotates counterclockwise. When the speed of the inner sleeve 2 is low, the protective shell window 301 can be aligned with the sleeve window 203, and the nut will automatically fall out of the inner sleeve 2 during the loosening process. When the speed of the inner sleeve 2 is high, the protective shell window 301 and the sleeve window 203 are kept misaligned to prevent the nut from flying out and protect the operator's safety. The protective shell 3 can cope with various environments and protect the inner sleeve 2 during operation, which helps to improve safety and efficiency and reduce the risk of nut jamming.
[0025] The protective shell 3 is made of stainless steel, and the inner sleeve 2 is made of high-strength alloy steel, which helps to improve the service life of the protective shell 3 and the inner sleeve 2, and prevents bumps, scratches or corrosion from damaging the tool.
[0026] In one optional embodiment, the sliding assembly includes a top annular groove 304 and a bottom annular groove 305 respectively formed at the upper and lower ends of the inner wall of the protective shell 3. The inner sleeve 2 has circular grooves at both its upper and lower ends, with springs fixed within these grooves. A bottom limiting ball post 204 is slidably connected within the lower circular groove, and a top limiting ball post 206 is slidably connected within the upper circular groove. The bottom limiting ball post 204 and the top limiting ball post 206 are respectively adapted to the top annular groove 304 and the bottom annular groove 305. The inner sleeve 3 has a top locking groove 302 and a bottom locking groove 303, which are respectively adapted to the top limiting ball post 206 and the bottom limiting ball post 204. First, the protective shell 3 is fitted onto the outer surface of the inner sleeve 2. During the fitting process, the bottom limiting ball post 204 and the top limiting ball post 206 are squeezed and retracted into the circular groove when they come into contact with the inner sleeve 2. When the bottom limiting ball post 204 and the top limiting ball post 206 move down to the corresponding bottom annular groove 305 and top... The inner sleeve 2 springs into the bottom annular groove 305 and the top annular groove 304 respectively, and slides within them. The inner sleeve 2 rotates clockwise, and the outer protective shell 3 rotates to swap the corresponding protective shell window 301 with the sleeve window 203, maintaining a misalignment to prevent the nut from falling out of the designed window and affecting assembly. This also prevents the nut from flying out of the inner sleeve 2 during high-speed rotation, improving safety. During the process of loosening the nut, the inner sleeve 2... When rotating counterclockwise, the top limiting ball 206 and the bottom limiting ball 204 engage with the top locking groove 302 and the bottom locking groove 303 respectively when the inner sleeve 2 rotates at a low speed. This aligns the protective shell window 301 with the sleeve window 203, and the nut automatically falls out of the inner sleeve 2 during the loosening process. When the inner sleeve 2 rotates at a high speed, the protective shell window 301 and the sleeve window 203 are kept misaligned to prevent the nut from flying out, thus protecting the operator's safety. The structure is compact, easy to process and manufacture, and has a low cost.
[0027] In one alternative embodiment, the top limiting ball post 206 and the bottom limiting ball post 204 are offset by ninety degrees, and the bottom limiting ball post 204 and the top limiting ball post 206 are offset by ninety degrees, so that the corresponding top locking groove 302 and bottom locking groove 303 can be easily engaged and locked when the window is rotated.
[0028] Working principle: First, the protective shell 3 is fitted onto the outer surface of the inner sleeve 2. During the fitting process, the bottom limiting ball post 204 and the top limiting ball post 206 are squeezed when they come into contact with the inner sleeve 2, and retract into the circular groove. When the bottom limiting ball post 204 and the top limiting ball post 206 move down into the corresponding bottom annular groove 305 and top annular groove 304 respectively, they spring into the bottom annular groove 305 and top annular groove 304 respectively, and slide within the bottom annular groove 305 and top annular groove 304, fitting the hexagonal inner cavity 201 onto the nut. The protrusion at the lower end of the drive handle 1 is inserted into the mounting groove 205. By rotating the drive handle 1, the inner sleeve 2 is rotated. The inner sleeve 2 rotates clockwise, and the outer layer of the inner sleeve 2... The protective shell 3 rotates to swap the corresponding protective shell window 301 with the sleeve window 203 to maintain misalignment, preventing the nut from falling out of the designed window and affecting assembly. At the same time, it prevents the nut from flying out of the inner sleeve 2 when it rotates at high speed. During the process of loosening the nut, the inner sleeve 2 rotates counterclockwise. When the inner sleeve 2 rotates at a low speed, the top limiting ball 206 and the bottom limiting ball 204 respectively engage in the top locking groove 302 and the bottom locking groove 303 to align the protective shell window 301 with the sleeve window 203. The nut automatically falls out of the inner sleeve 2 during the loosening process. When the inner sleeve 2 rotates at a high speed, the protective shell window 301 and the sleeve window 203 are kept misaligned.
[0029] The above description is merely a preferred embodiment of the present invention, and the specific embodiments described above are not intended to limit the present invention. Various modifications and variations can be made within the scope of the technical concept of the present invention. All refinements, modifications, or equivalent substitutions made by those skilled in the art based on the above description are within the scope of protection of the present invention.
Claims
1. An automatic nut-removing sleeve tool, characterized in that, Includes a drive handle (1), on which an inner sleeve (2) is detachably mounted, and a protective shell (3) is provided on the outer wall of the inner sleeve (2). A sliding assembly is provided between the inner sleeve (2) and the protective shell (3). A sleeve window (203) is provided on the protective shell (3), and a protective shell window (301) is provided on the protective shell (3).
2. The automatic nut-removing sleeve tool according to claim 1, characterized in that, The upper end of the inner sleeve (2) is provided with an installation groove (205), and the lower end of the drive handle (1) is fixed with a protrusion. The installation groove (205) and the protrusion are both square and have a clearance fit.
3. The automatic nut-removing sleeve tool according to claim 2, characterized in that, The inner sleeve (2) includes an outer sleeve extension (202), and a hexagonal inner cavity (201) is formed on the inner sleeve (2).
4. The automatic nut-removing sleeve tool according to claim 1, characterized in that, The protective shell (3) is made of stainless steel, and the inner sleeve (2) is made of high-strength alloy steel.
5. The automatic nut-removing sleeve tool according to claim 1, characterized in that, The sliding assembly includes a top annular groove (304) and a bottom annular groove (305) respectively opened at the upper and lower ends of the inner wall of the protective shell (3). The inner sleeve (2) has circular grooves at both the upper and lower ends. A spring is fixed in the circular groove. A bottom limiting ball post (204) is slidably connected in the lower circular groove, and a top limiting ball post (206) is slidably connected in the upper circular groove. The bottom limiting ball post (204) and the top limiting ball post (206) are respectively adapted to the top annular groove (304) and the bottom annular groove (305).
6. The automatic nut-removing sleeve tool according to claim 5, characterized in that, The top annular groove (304) and the bottom annular groove (305) are respectively provided with a top locking groove (302) and a bottom locking groove (303), which are adapted to the top limiting ball post (206) and the bottom limiting ball post (204).
7. The automatic nut-removing sleeve tool according to claim 5, characterized in that, The top limiting ball column (206) and the bottom limiting ball column (204) are offset at ninety degrees.