Multipurpose swing tool adapter
By using a rotating paddle and threaded connection design, combined with the use of a hexagonal frustum and a wrench, the problem of cumbersome disassembly and assembly of handheld power tool saw blades is solved, enabling quick replacement and improving versatility, while extending the adapter's lifespan.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-03
- Publication Date
- 2026-03-31
AI Technical Summary
The design of the connector and saw blade of existing handheld power tools makes disassembly and assembly cumbersome, hinders quick replacement, and has poor versatility.
It adopts a rotating blade and threaded connection design, combined with the use of a hexagonal truncated cone and wrench, which simplifies the disassembly and assembly operation. The magnetic block and the protrusion ensure the precise placement of the saw blade, and the use of a lightweight metal alloy internal thread sleeve improves wear resistance.
It enables manual and quick tightening or loosening of the saw blade, simplifies the assembly and disassembly process, improves efficiency, enhances the applicability of the adapter in confined spaces, and extends service life.
Smart Images

Figure CN224059770U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of tool adapter technology, and in particular to a multi-purpose swing tool adapter. Background Technology
[0002] With the rise of small handheld power tools, more and more power tool products are entering the market. Handheld power tools can be connected to grinding wheels, saw blades, etc., and the grinding wheel or saw blade is driven by a motor to rotate, thereby achieving the effect of sharpening the saw. However, the connector of a typical handheld power tool is integrated with the handheld power tool, and its grinding wheel and saw blade are also designed to match. This makes it impossible to connect with different grinding wheels or saw blades on the market, resulting in excessively high costs and poor versatility.
[0003] In related technologies, patent CN210280878U discloses a novel multi-functional saw blade adapter, including a disc structure. One end face of the disc structure has a regular polygonal frustum, and the other end face has a protrusion. The center of the disc structure has a threaded through hole, and the center of the frustum has a blind hole with a diameter larger than that of the threaded through hole. This saw blade adapter allows for quick saw blade replacement, convenient and stable connection, and easy use with different saw blades. However, this device is connected and fixed to a stud through the threaded through hole in the center of the disc. However, the stud is embedded in the frustum when fixed, and a hex wrench is required to disassemble the stud, making the disassembly and assembly process cumbersome and affecting the quick replacement of the oscillating saw blade. Therefore, we propose a multi-purpose oscillating tool adapter.
[0004] The information disclosed in this background section is only for understanding the background technology of the inventive concept, and therefore may include information that does not constitute prior art. Utility Model Content
[0005] The purpose of this utility model is to provide a multi-purpose swing tool adapter to solve the problem mentioned in the background art that the stud of the device is submerged in the truncated cone in a fixed state, and a hex wrench is required to disassemble the stud, making the disassembly and assembly process cumbersome and affecting the quick replacement of the swing saw blade.
[0006] To achieve the above objectives, the present invention adopts the following technical solution:
[0007] A multi-purpose oscillating tool adapter includes a first frustum, a second frustum detachably connected and fixed to the first frustum, and an oscillating saw blade engaged between the first frustum and the second frustum.
[0008] A connecting frustum is integrally formed at the upper center of the first frustum, and a connecting stud is integrally formed at the upper end of the connecting frustum.
[0009] A connecting groove is provided at the lower center of the second frustum, corresponding to the position of the connecting frustum. An internal thread sleeve matching the thread of the connecting stud is provided at the upper end of the connecting groove at the inner center of the second frustum.
[0010] The second frustum has a rotating paddle integrally formed on its side, and a pressure block integrally formed at the lower end of the rotating paddle. The lower end face of the pressure block is on the same horizontal plane as the lower end face of the second frustum.
[0011] In some embodiments, a hexagonal frustum is integrally formed at the upper center of the second frustum, and a through groove is provided inside the hexagonal frustum at the corresponding position of the internal threaded sleeve. The through groove is a circular through groove, and the diameter of the through groove is the same as the diameter of the internal threaded sleeve.
[0012] In some embodiments, the upper end of the first truncated cone has multiple sets of protrusions symmetrically and regularly arranged on the side of the connecting stud, and the protrusions are correspondingly arranged with the connecting groove of the oscillating saw blade.
[0013] In some embodiments, the upper end of the first truncated cone has multiple sets of protrusions symmetrically and regularly arranged on the side of the connecting stud, and the protrusions are correspondingly arranged with the connecting groove of the oscillating saw blade.
[0014] In some embodiments, a mounting hole is provided at the lower end of the first frustum, and the first frustum is a hard metal frustum.
[0015] In some embodiments, the second frustum is a rigid plastic frustum, the internal threaded sleeve is a lightweight metal alloy threaded sleeve, the internal threaded sleeve is glued and fixed to the second frustum, and the protrusion is a circular protrusion or an elliptical protrusion.
[0016] The beneficial effects of this utility model are:
[0017] The rotating paddle and threaded connection design allow users to quickly tighten or loosen the oscillating saw blade manually, simplifying assembly and disassembly and improving efficiency. The hexagonal frustum design at the top of the second frustum allows for further tightening with a matching wrench, avoiding the inconvenience of using a hex wrench in confined spaces and enhancing the adapter's applicability in restricted environments. The protrusions on the first frustum correspond to the connecting grooves of the oscillating saw blade, and together with the magnetic block, ensure precise placement of the saw blade, facilitating subsequent fixing operations. The internal threaded sleeve is made of a lightweight metal alloy (such as aluminum alloy) and is glued to the second frustum, improving wear resistance and extending the adapter's service life. Attached Figure Description
[0018] Figure 1 This is a schematic diagram of the structure of a multi-purpose swing tool adapter proposed in this utility model;
[0019] Figure 2This is a schematic diagram showing the disassembled structure of a multi-purpose swing tool adapter proposed in this utility model;
[0020] Figure 3 This is a schematic diagram of the first frustum structure of a multi-purpose swing tool adapter proposed in this utility model;
[0021] Figure 4 This is a schematic diagram of the second frustum structure of a multi-purpose swing tool adapter proposed in this utility model;
[0022] Figure 5 This is a first frustum cross-sectional view of a multi-purpose swing tool adapter proposed in this utility model.
[0023] In the diagram: 1 is the oscillating saw blade, 2 is the first frustum, 3 is the second frustum, 4 is the rotating paddle, 5 is the pressure block, 6 is the hexagonal frustum, 7 is the magnetic block, 8 is the protrusion, 9 is the connecting frustum, 10 is the connecting stud, 11 is the connecting groove, 12 is the internal threaded sleeve, and 13 is the mounting hole. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0025] It should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are only for the convenience of describing the present invention 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 the present invention.
[0026] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0027] Reference Figure 1 , 23, 4, 5, A multi-purpose swing tool adapter, comprising a first truncated cone 2, a second truncated cone 3 detachably connected and fixed to the first truncated cone 2, and a swing saw blade 1 locked between the first truncated cone 2 and the second truncated cone 3;
[0028] A connecting truncated cone 9 is integrally formed at the upper center of the first truncated cone 2, and a connecting stud 10 is integrally formed at the upper end of the connecting truncated cone 9.
[0029] A connecting groove 11 is provided at the lower center of the second truncated cone 3, corresponding to the connecting truncated cone 9. An internal thread sleeve 12 matching the thread of the connecting stud 10 is provided at the upper center of the second truncated cone 3.
[0030] The side of the second truncated cone 3 is integrally formed with a rotating paddle 4, and the lower end of the rotating paddle 4 is integrally formed with a pressure block 5. The lower end surface of the pressure block 5 and the lower end surface of the second truncated cone 3 are located on the same horizontal plane.
[0031] The connecting stud 10 is integrally formed with the first truncated cone 2. The connection and fixation between the truncated cones are achieved through the internal threaded sleeve 12 in the second truncated cone 3. The rotating lever 4 can be manually tightened quickly, which greatly simplifies the disassembly and assembly of the swing saw blade 1.
[0032] In specific implementation of the embodiments of this utility model, such as Figure 1 , 2 As shown, a hexagonal frustum 6 is integrally formed at the upper center of the second frustum 3. A through groove is provided inside the hexagonal frustum 6 at the corresponding position of the internal threaded sleeve 12. The through groove is a circular through groove, and the diameter of the through groove is the same as the diameter of the internal threaded sleeve 12. The hexagonal frustum 6 and the matching wrench can be used to further tighten the oscillating saw blade, eliminating the need for a hexagonal wrench and allowing the adapter to be disassembled and assembled in a relatively narrow space.
[0033] In specific implementation of the embodiments of this utility model, such as Figure 1 , 2 As shown, the upper end of the first truncated cone 2 has multiple sets of protrusions 8 symmetrically and regularly arranged on the side of the connecting stud 10. The protrusions 8 are correspondingly arranged with the connecting groove 11 of the oscillating saw blade 1. The protrusions 8, together with the magnetic block 7, facilitate the precise placement of the oscillating saw blade 1 and make it easy to tighten and fix it later.
[0034] In specific implementation of the embodiments of this utility model, such as Figure 1 , 5As shown, the lower end of the first truncated cone 2 is provided with a mounting hole 13. The first truncated cone 2 is a hard metal truncated cone, the second truncated cone 3 is a hard plastic truncated cone, the internal thread sleeve 12 is a lightweight metal alloy thread sleeve, and the protrusion 8 is a circular protrusion or an elliptical protrusion. The internal thread sleeve 12 is glued and fixed to the second truncated cone 3. The internal thread sleeve 12 can be made of aluminum alloy or other hard wear-resistant metals to improve the wear resistance of the internal thread sleeve 12 and avoid thread wear.
[0035] In this embodiment, all components are general standard parts or components known to those skilled in the art. Their structures and connection principles can be known to those skilled in the art through technical manuals or conventional experimental methods. Installing the oscillating saw blade: Place the oscillating saw blade 1 on the first truncated cone 2, so that the connecting groove of the saw blade corresponds to the protrusion 8 at the upper end of the first truncated cone 2; by using the cooperation of the protrusion 8 and the magnetic block 7, the saw blade is accurately placed and kept stable.
[0036] Connect the first truncated cone 2 and the second truncated cone 3: Align the connecting groove 11 at the lower end of the second truncated cone 3 with the connecting stud 10 at the upper end of the first truncated cone 2; manually tighten the second truncated cone 3 by rotating the lever 4, so that the connecting stud 10 is threadedly connected to the internal threaded sleeve 12 inside the second truncated cone 3, and the saw blade is initially fixed.
[0037] Further tightening: Use the matching wrench to engage with the hexagonal frustum 6 at the upper end of the second frustum 3 to further tighten the internal threaded sleeve 12, ensuring a firm connection between the first frustum 2 and the second frustum 3. This step is particularly suitable for narrow spaces, avoiding the inconvenience of using a hexagonal wrench.
[0038] Complete the fixing: By rotating the lever 4 and operating the wrench, ensure that the swing saw blade 1 is firmly clamped between the first truncated cone 2 and the second truncated cone 3, and the adapter enters the working state;
[0039] Disassembly process: Reverse the above steps. First, use a wrench to loosen the hexagonal frustum 6, and then manually loosen the second frustum 3 by rotating the lever 4 to disassemble the oscillating saw blade 1.
[0040] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A multi-purpose swing tool adapter, comprising a first circular table (2), a second circular table (3) detachably connected and fixed with the first circular table (2), and a swing saw blade (1) clamped between the first circular table (2) and the second circular table (3), characterized in that: a connecting circular table (9) is integrally formed at the central position of the upper end of the first circular table (2), and a connecting stud (10) is integrally formed at the upper end of the connecting circular table (9); a connecting groove (11) is formed at the corresponding position of the connecting circular table (9) at the central position of the lower end of the second circular table (3), and an internal thread sleeve (12) matching the thread of the connecting stud (10) is arranged at the internal central position of the second circular table (3) at the upper end of the connecting groove (11); a rotating knob (4) is integrally formed at the side of the second circular table (3), a pressing block (5) is integrally formed at the lower end of the rotating knob (4), and the lower end surface of the pressing block (5) is located on the same horizontal plane as the lower end surface of the second circular table (3).
2. A multi-purpose swing tool adapter according to claim 1, characterized in that, a hexagonal table (6) is integrally formed at the central position of the upper end of the second circular table (3), a through groove is formed at the corresponding position of the internal thread sleeve (12) in the interior of the hexagonal table (6), the through groove is a circular through groove, and the hole diameter of the through groove is the same as the hole diameter of the internal thread sleeve (12).
3. A multi-purpose swing tool adapter according to claim 1, characterized in that, a plurality of groups of protrusions (8) are regularly arranged symmetrically at the side of the connecting stud (10) at the upper end of the first circular table (2), and the protrusions (8) are arranged correspondingly with the connecting grooves of the swing saw blade (1).
4. A multi-purpose swing tool adapter according to claim 1, characterized in that, four groups of magnetic attraction blocks (7) are arranged symmetrically outside the protrusions (8) at the upper end of the first circular table (2), and the magnetic attraction blocks (7) are embedded on the upper end surface of the first circular table (2).
5. A multi-purpose swing tool adapter according to claim 1, wherein, an installation hole (13) is formed at the lower end of the first circular table (2), and the first circular table (2) is a hard metal circular table.
6. A multi-purpose swing tool adapter according to claim 3, characterized in that, the second circular table (3) is a hard plastic circular table, the internal thread sleeve (12) is a light metal alloy thread sleeve, the internal thread sleeve (12) is glued and fixed with the second circular table, and the protrusions (8) are circular protrusions or elliptical protrusions.
Citation Information
Patent Citations
Novel multifunctional saw blade adapter
CN210280878U