Dual securement locking sleeve

Abstract

This invention provides a double-locking sleeve, relating to the field of disassembly and assembly tools. The double-locking sleeve includes a sleeve body, a snap-fit ​​assembly, and an adsorption assembly. The two ends of the sleeve body are respectively configured as a connection end for connecting to a driving device and a disassembly end for connecting threaded fasteners. The disassembly end has a transmission groove along the axial direction adapted to the threaded fastener. The snap-fit ​​assembly includes an elastic element and a snap-fit ​​positioning element. The elastic element is located at the disassembly end and connected to the snap-fit ​​positioning element, and the snap-fit ​​end of the snap-fit ​​positioning element is inserted into the transmission groove. The adsorption assembly is located within the transmission groove. The snap-fit ​​assembly and adsorption assembly of this invention cooperate to combine snap-fit ​​positioning and locking with adsorption locking, which not only significantly improves the stability and torque transmission accuracy during disassembly and assembly but also prevents threaded fasteners from falling off during use, adapting to complex working conditions. Furthermore, the dual structures work together to ensure reliable locking and high durability.

Description

Technical Field

[0001] This invention relates to the field of disassembly and assembly tools, and specifically to a double-locking sleeve. Background Technology

[0002] Threaded fasteners, as basic connecting parts in mechanical assembly, equipment maintenance, and building installation, are widely used in the fixed assembly of various equipment and components. Sockets, which are paired with socket wrenches, are the core tools for assembling and disassembling threaded fasteners. Currently, conventional sockets on the market have relatively simple structures, mostly featuring only a transmission groove that matches the shape of the threaded fastener. Torque transmission is achieved through the rigid pressure between the inner wall of the groove and the outer wall of the fastener, thus completing the fastener assembly and disassembly operations.

[0003] Existing sleeves have many drawbacks in practical use:

[0004] Firstly, the sleeve and the threaded fastener only have a simple mating contact without a positioning and locking structure. During operation, factors such as vibration, torque deviation, and operational offset can cause the sleeve to slip or loosen relative to the threaded fastener. This can not only interrupt the disassembly and assembly work and reduce work efficiency, but also easily wear down the edges of the fastener and the inner wall of the sleeve, causing problems such as fastener stripping and sleeve failure. In severe cases, it can also scratch the workpiece and cause operational safety hazards.

[0005] Secondly, traditional sleeves do not have a locking and fixing function. In special working conditions such as working at heights, working in confined spaces, and inverted disassembly and assembly, threaded fasteners cannot be stably retained inside the sleeve and are very easy to fall off or be lost. This not only increases the wear and tear on parts, but also requires operators to repeatedly pick them up and align them for installation, which greatly increases the difficulty of operation and labor costs.

[0006] Third, some improved sleeves only have a single locking or adsorption structure, with a single locking and fixing method and poor positioning stability. The single structure is prone to problems such as elastic fatigue, adsorption attenuation, and loosening of the locking position under long-term stress. The durability and adaptability are poor, and it is impossible to meet the locking and positioning and anti-dislodgement requirements under different working conditions. It is difficult to meet the requirements of high precision, high stability and complex working conditions for the disassembly and assembly of threaded fasteners.

[0007] Therefore, there is an urgent need to develop a double-locking sleeve with dual fixing and locking functions, stable positioning, good anti-fall-off effect, and adaptability to multiple working conditions, in order to solve the many technical defects of the existing technology. Summary of the Invention

[0008] The purpose of this invention is to provide a double-locking sleeve to solve the above-mentioned technical problems in the prior art; the preferred technical solutions among the many technical solutions provided by this invention can produce many technical effects, as detailed below.

[0009] To achieve the above objectives, the present invention provides the following technical solution: This invention provides a double-locking sleeve, comprising a sleeve body, a snap-fit ​​assembly, and an adsorption assembly, wherein: the two ends of the sleeve body are respectively configured as a connecting end for connecting a driving device and a disassembly end for connecting a threaded fastener, the disassembly end having a transmission groove adapted to the threaded fastener along the axial direction; the snap-fit ​​assembly includes an elastic element and a snap-fit ​​positioning element, the elastic element being disposed at the disassembly end and connected to the snap-fit ​​positioning element, the snap-fit ​​end of the snap-fit ​​positioning element being inserted into the transmission groove; the adsorption assembly is disposed within the transmission groove.

[0010] Preferably, the side wall of the transmission groove is provided with a mounting hole, and the snap-fit ​​positioning member is movably disposed in the mounting hole and abuts against the elastic member.

[0011] Preferably, the number of the snap-fit ​​positioning element is at least one; the snap-fit ​​positioning element is a steel ball.

[0012] Preferably, the elastic element is configured as an open-loop annular spring sheet, which surrounds the outer wall of the disassembly end; the mounting hole is configured as a through hole, which is blocked by the annular spring sheet, and the abutting end of the snap-fit ​​positioning element abuts against the annular spring sheet.

[0013] Preferably, an annular groove is provided on the outer wall of the detachable end along the circumferential direction, and the annular spring is arranged in the annular groove.

[0014] Preferably, the two ends of the annular spring opening are respectively set as a first end and a second end, wherein: the first end is provided with a guide groove; the second end is provided with a guide protrusion adapted to the guide groove; the guide protrusion is inserted into the guide groove.

[0015] Preferably, the adsorption component is configured as a magnetic adsorption component, and an installation groove is provided on the bottom wall of the transmission groove, and the magnetic adsorption component is embedded in the installation groove.

[0016] Preferably, the magnetic suction assembly includes a mounting component and a magnetic suction component, wherein: the mounting component is adapted to the mounting groove and is embedded in the mounting groove; the magnetic suction component is fixedly disposed on the mounting component.

[0017] Preferably, the mounting component is provided with a fixing groove that is adapted to the magnetic component, and the magnetic component is embedded in the fixing groove.

[0018] Preferably, the magnetic attractant is a magnet.

[0019] The double-locking sleeve provided by the present invention has at least the following beneficial effects: I. Achieve locking and positioning, significantly improving assembly / disassembly stability and torque transmission accuracy: This invention adds a snap-fit ​​assembly consisting of an elastic element and a snap-fit ​​positioning element. The elastic element provides a continuous elastic clamping force to the snap-fit ​​positioning element, allowing the snap-fit ​​end of the snap-fit ​​positioning element to stably extend into the transmission groove. This clamps and limits the threaded fastener after it is fitted, effectively restricting the relative offset and sliding between the sleeve and the fastener. At the same time, in conjunction with the outer shape limit of the transmission groove, it forms a mechanical locking base, completely solving the problems of easy loosening and slippage of traditional sleeves. This ensures uniform and stable torque transmission, avoids wear between the fastener's edges and the inner wall of the sleeve, effectively protects the fastener and the sleeve body, and extends the service life of equipment and tools.

[0020] II. It features adaptive adsorption and anti-fall-off function, making it suitable for complex working conditions: By setting an adsorption component inside the transmission groove, a stable adsorption force can be generated on the threaded fasteners. In working conditions without support or limit, such as high altitude, confined space, or inverted operation, the fasteners can be firmly adsorbed and fixed, preventing them from falling or being lost. There is no need for operators to manually support and align them, which greatly reduces the difficulty of operation in special working conditions, reduces the wear and tear of parts, and improves the convenience and efficiency of disassembly and assembly operations.

[0021] III. The dual-structure working together enhances locking reliability and durability: This invention combines the rigid locking of mechanical clamping with the soft auxiliary locking of adsorption fixation, forming a dual-fixation and protection system. If one structure fails, the other can continue to function, avoiding the fatigue and failure defects of traditional single-locking structures. Simultaneously, the elastic element allows for adaptive expansion and contraction of the clamping and positioning components, accommodating fasteners with minute dimensional deviations and improving the sleeve's adaptability and versatility. The overall structure is simple, compact, and rationally laid out, achieving automatic locking and positioning without additional manual operation, significantly improving work efficiency and operational safety. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a structural schematic diagram from one perspective of one embodiment of the present invention; Figure 2 This is a structural schematic diagram from another perspective of one embodiment of the present invention; Figure 3 This is an assembly diagram of a snap-fit ​​assembly according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the structure of the elastic element of the present invention; Figure 5 This is an assembly diagram of the adsorption component according to one embodiment of the present invention; Figure 6 This is a schematic diagram of the structure of various specifications according to one embodiment of the present invention; Figure 7 This is a schematic diagram of the structure from one perspective of another embodiment of the present invention; Figure 8 This is a structural schematic diagram from another perspective of another embodiment of the present invention; Figure 9 This is an assembly diagram of a snap-fit ​​assembly according to another embodiment of the present invention; Figure 10 This is an assembly diagram of the adsorption component according to another embodiment of the present invention.

[0024] Figure Labels 1. Sleeve body; 11. Connecting end; 12. Disassembly end; 13. Transmission groove; 14. Mounting hole; 15. Annular groove; 16. Mounting groove; 2. Snap-fit ​​assembly; 21. Elastic element; 211. Guide groove; 212. Guide protrusion; 22. Snap-fit ​​positioning element; 3. Adsorption assembly; 31. Mounting element; 311. Fixing groove; 32. Magnetic element. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be described in detail below. Obviously, the described embodiments are merely some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this invention.

[0026] Example 1: This invention provides a double-locking sleeve, see reference. Figures 1 to 10 As shown, the double-locking sleeve includes a sleeve body 1, a snap-fit ​​assembly 2, and an adsorption assembly 3.

[0027] The two ends of the sleeve body 1 are respectively configured as a connecting end 11 and a disassembly end 12. The connecting end 11 is adapted to the driving device and is used to connect the driving device. The disassembly end 12 is adapted to the head of the threaded fastener. The disassembly end 12 has a transmission groove 13 adapted to the threaded fastener along the axial direction. The head of the threaded fastener can be inserted into the transmission groove 13 and is connected to the transmission groove 13 in a transmission connection.

[0028] The snap-fit ​​assembly 2 includes an elastic element 21 and a snap-fit ​​positioning element 22. The elastic element 21 is disposed on the disassembly end 12 and connected to the snap-fit ​​positioning element 22. The snap-fit ​​end of the snap-fit ​​positioning element 22 is inserted into the transmission groove 13.

[0029] The adsorption component 3 is disposed in the transmission groove 13.

[0030] When disassembling and assembling threaded fasteners, first connect the connecting end 11 to the drive device, then align the transmission groove 13 with the head of the threaded fastener to be disassembled and assembled, and insert the head of the threaded fastener to be disassembled and assembled into the transmission groove 13. After the insertion is in place, the adsorption component 3 adsorbs the threaded fastener to be disassembled and assembled, and the locking positioning component 22 presses against the threaded fastener to be disassembled and assembled under the elastic pressure of the elastic component 21. Then, the drive device drives the double locking sleeve to rotate, thereby driving the threaded fastener to be disassembled and assembled to rotate, thus realizing disassembly and assembly.

[0031] In the above process, the snap-fit ​​component 2 and the adsorption component 3 cooperate with each other to combine snap-fit ​​positioning and locking with adsorption locking. This not only greatly improves the stability and torque transmission accuracy during disassembly and assembly, but also makes it less likely for threaded fasteners to fall off during use, making it suitable for complex working conditions. At the same time, the dual structures work together to lock securely and are highly durable.

[0032] Example 2: Example 2 is based on Example 1: like Figures 1 to 10 As shown, a mounting hole 14 is provided on the side wall of the transmission groove 13, and the snap-fit ​​positioning member 22 is movably disposed in the mounting hole 14 and abuts against the elastic member 21.

[0033] The movable mounting structure, in conjunction with the elastic element 21, enables the snap-fit ​​positioning element 22 to have an adaptive telescopic capability. It automatically retracts and pushes out when the sleeve is inserted into or removed from the fastener, achieving automatic unlocking and locking without manual adjustment, demonstrating strong structural linkage. Simultaneously, the mounting hole 14 provides radial limiting and guiding for the snap-fit ​​positioning element 22, effectively preventing it from shifting or tilting, ensuring stable and smooth snap-fit ​​action, and improving the overall operational reliability of the locking structure.

[0034] As an optional implementation, the number of snap-fit ​​positioning elements 22 is set to at least one.

[0035] At least one snap-fit ​​positioning component 22 is provided, which can be flexibly configured according to the sleeve specifications. A single point can achieve basic locking, and multiple points can further improve the uniformity of circumferential locking, prevent the fastener from loosening under unilateral force, and adapt to the disassembly and assembly needs of different sizes and different stress conditions.

[0036] The snap-fit ​​positioning element 22 is made of steel ball.

[0037] Steel balls are used as the snap-fit ​​positioning element 22. They have a smooth surface, high hardness, and excellent wear resistance. When in contact with the outer wall of the fastener, the frictional resistance is small, which can not only ensure a stable clamping effect, but also avoid scratching and abrasion of the fastener surface and edges, effectively protecting the integrity of the workpiece. At the same time, the steel ball structure is a point contact locking type, which has strong adaptability and can be used with a variety of standard external hexagonal and external square thread fasteners, and has good versatility.

[0038] As an optional implementation, the elastic element 21 is configured as an annular spring sheet, which has an open-ring structure and is arranged around the outer wall of the disassembly end 12; the mounting hole 14 is configured as a through hole, the annular spring sheet blocks the mounting hole 14, and the abutting end of the snap-fit ​​positioning element 22 abuts against the inner wall of the annular spring sheet.

[0039] The ring-shaped spring is used for installation from the outside, resulting in a compact installation layout. It can hold the outer wall of the sleeve tightly, ensuring the snap-fit ​​effect without occupying the internal space of the transmission groove 13, and facilitating the assembly and disassembly of the snap-fit ​​positioning piece 22.

[0040] As an optional implementation, an annular groove 15 is provided circumferentially on the outer wall of the detachment end 12, and the annular spring is arranged in the annular groove 15.

[0041] The annular groove 15 can accurately limit and accommodate the annular spring, providing both axial and radial limiting to ensure its stable installation.

[0042] As an optional implementation, the two ends of the annular spring opening are respectively set as a first end and a second end. The first end is provided with a guide groove 211; the second end is provided with a guide protrusion 212, which is adapted to the guide groove 211 and is inserted into the guide groove 211.

[0043] The guide groove 211 and the guide protrusion 212 work together to limit and guide the two ends of the spring piece, while limiting the deformation amplitude and offset at the opening of the spring piece, thereby ensuring the overall elastic stability.

[0044] As an optional implementation, the adsorption component 3 is configured as a magnetic adsorption component, and an installation groove 16 is provided on the bottom wall of the transmission groove 13, and the magnetic adsorption component is embedded in the installation groove 16.

[0045] A magnetic component is used and placed on the bottom wall of the transmission groove 13. When in use, it corresponds to the end face of the iron threaded fastener head and can generate a continuous and stable adsorption force.

[0046] As an optional implementation, the magnetic suction assembly includes a mounting component 31 and a magnetic suction component 32. The mounting component 31 is adapted to the mounting groove 16 and is embedded in the mounting groove 16. The magnetic suction component 32 is fixedly mounted on the mounting component 31. The mounting component 31 and the mounting groove 16 are interference fit, and the installation is firm.

[0047] In practical applications, the mounting slot 16 can be set to a circle, quadrilateral, polygon, etc., and the mounting part 31 is adapted to it.

[0048] As an optional implementation, the mounting component 31 is configured as a mounting sleeve, which has a fixing groove 311 adapted to the magnetic component 32. The magnetic component 32 is embedded in the fixing groove 311, and the magnetic component 32 and the fixing groove 311 are interference fit, so the installation is firm.

[0049] Specifically, the mounting component 31 can be made of a metal material that has elastic deformation capability, small plastic deformation, good resilience, moderate hardness, is not easy to rust, and is suitable for interference fit of tooling. Spring steel, stainless steel, brass and aluminum are optional.

[0050] As an optional implementation, the magnetic attractor 32 is configured as a magnet.

[0051] Using magnets, it has the advantages of simple structure, low cost and stable magnetic attraction performance.

[0052] As an optional implementation, the driving device can be a manually driven device, such as a socket wrench or ratchet wrench, or a pneumatically driven device, such as an air wrench, or an electrically driven device, such as a lithium-ion electric wrench or a lithium-ion cordless electric drill.

[0053] The disassembly end 12 is adapted to a specific drive device.

[0054] Optionally, such as Figures 1 to 6 As shown, the disassembly end 12 is provided with a connecting groove, such as a square groove.

[0055] Alternatively, such as Figures 7 to 10 As shown, the disassembly end 12 is equipped with a connecting post, such as a hexagonal post.

[0056] In the description of this application, it should be understood that the terms "upper", "lower", "inner", "outer", "top", "bottom", 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.

[0057] Furthermore, 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. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" or "several" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0058] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0059] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A double-locking sleeve, characterized in that, Includes a sleeve body, a snap-fit ​​assembly, and an adsorption assembly, wherein: The two ends of the sleeve body are respectively configured as a connecting end for connecting the drive device and a disassembly end for connecting the threaded fastener. The disassembly end is provided with a transmission groove along the axial direction that is adapted to the threaded fastener. The snap-fit ​​assembly includes an elastic element and a snap-fit ​​positioning element. The elastic element is disposed at the disassembly end and connected to the snap-fit ​​positioning element. The snap-fit ​​positioning element's locking end is inserted into the transmission groove. The adsorption component is disposed within the transmission groove.

2. The double-locking sleeve according to claim 1, characterized in that, The transmission groove has a mounting hole on its side wall, and the snap-fit ​​positioning member is movably disposed in the mounting hole and abuts against the elastic member.

3. The double-locking sleeve according to claim 1, characterized in that, The number of the snap-fit ​​positioning component is set to at least one; The snap-fit ​​positioning element is made of steel balls.

4. The double-locking sleeve according to claim 2, characterized in that, The elastic element is configured as an open-loop structure ring spring sheet, which is arranged around the outer wall of the disassembly end; The mounting hole is configured as a through hole, the annular spring sheet blocks the mounting hole, and the abutting end of the snap-fit ​​positioning member abuts against the annular spring sheet.

5. The double-locking sleeve according to claim 4, characterized in that, An annular groove is provided circumferentially on the outer wall of the disassembly end, and the annular spring is arranged in the annular groove.

6. The double-locking sleeve according to claim 4, characterized in that, The two ends of the annular spring opening are respectively designated as a first end and a second end, wherein: The first end is provided with a guide groove; The second end is provided with a guide protrusion that matches the guide groove; The guide protrusion is inserted into the guide groove.

7. The double-locking sleeve according to claim 1, characterized in that, The adsorption component is configured as a magnetic adsorption component, and an installation groove is provided on the bottom wall of the transmission groove, and the magnetic adsorption component is embedded in the installation groove.

8. The double-locking sleeve according to claim 7, characterized in that, The magnetic attraction assembly includes a mounting component and a magnetic attraction component, wherein: The mounting component is adapted to the mounting groove, and the mounting component is embedded in the mounting groove; The magnetic suction element is fixedly mounted on the mounting component.

9. The double-locking sleeve according to claim 8, characterized in that, The mounting component is provided with a fixing groove that is adapted to the magnetic component, and the magnetic component is embedded in the fixing groove.

10. The double-locking sleeve according to claim 8, characterized in that, The magnetic component is a magnet.

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