Multifunctional combined multipurpose tool

Abstract

The utility model discloses a multifunctional combined type multipurpose tool which comprises a multifunctional machine, a driving shaft of the multifunctional machine is fixedly connected with a connecting sleeve, a connecting shaft is inserted into the connecting sleeve, an anti-falling assembly for preventing the connecting shaft from falling off is arranged in the connecting sleeve, and the surface of the connecting shaft is sleeved with a polishing and grinding piece. According to the polishing and grinding device, due to the arrangement of the anti-disengaging assembly, the pull rod is pulled downwards, the two sets of clamping blocks are driven by the connecting piece to rotate around the fixing column, the ends of the upper portions of the two sets of clamping blocks rotate inwards at the same time, and therefore the polishing and grinding device can be used for polishing and grinding a workpiece. The clamping blocks are arranged on the two sides of the connecting sleeve, so that the lower ends of the two sets of clamping blocks are clamped into the clamping grooves in the inner walls of the two sides of the connecting sleeve respectively, the connecting shaft is prevented from falling off, the clamping blocks have larger contact area and higher vibration or overload resistance compared with threads, the influence of vibration or overload can be reduced, and meanwhile workers can disassemble the connecting shaft conveniently.

Description

Technical Field

[0001] This utility model relates to the field of power tool technology, specifically a multi-functional combination multi-purpose tool. Background Technology

[0002] There are many types of power tools, and different power tools are suitable for different usage scenarios. If you purchase different power tools to meet different usage scenarios, it will be too expensive. Therefore, power tools with interchangeable functions are a better solution.

[0003] Currently, Chinese patent CN212095762U discloses a multi-functional power tool, including a multi-functional body with a rotatable output shaft. The tool also includes an adapter shaft for mounting a polishing component with a polishing function, and the adapter shaft is detachably connected to the output shaft. When a polishing disc is mounted on the output shaft, the multi-functional power tool performs polishing operations; when the polishing disc is removed, the adapter shaft is connected to the output shaft, and the polishing component is connected to the output shaft, the multi-functional power tool performs polishing operations. This multi-functional power tool allows for conversion between a polisher and a polishing machine via the adapter shaft, making it not only portable but also cost-effective.

[0004] The aforementioned multi-functional power tool has some problems in use. The adapter shaft is connected to the output shaft via an internal thread. Although the threaded connection makes disassembly easy, vibration or overload can cause the thread profile to twist or wear, resulting in an overly tight thread fit that makes disassembly difficult. Utility Model Content

[0005] The purpose of this utility model is to provide a multi-functional combined multi-purpose tool to solve the problem mentioned in the background art, where vibration or overload causes the thread profile to twist and wear, resulting in an overly tight thread fit that cannot be easily disassembled, and may even lead to damage to the thread profile.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A multi-functional combination multi-purpose tool includes a multi-functional machine, a drive shaft of the multi-functional machine is fixedly connected to a connecting sleeve, a connecting shaft is inserted into the inside of the connecting sleeve, an anti-detachment component is provided inside the connecting sleeve to prevent the connecting shaft from falling off, a polishing part is sleeved on the surface of the connecting shaft, and a fixing part for fixing the polishing part is provided at the tail of the connecting shaft.

[0008] The anti-detachment component includes square grooves on both sides of the end of the connecting shaft. A fixing rod is fixedly connected to the middle of each of the two sets of square grooves. A snap-fit ​​block is rotatably sleeved on the surface of the fixing rod located inside the two sets of square grooves. Snap-fit ​​grooves are opened on the inner walls of both sides of the connecting sleeve and at corresponding positions below the ends of the two sets of snap-fit ​​blocks. A pull rod is inserted into the middle of the connecting shaft. Connecting parts for connecting the corresponding snap-fit ​​blocks are respectively provided on both sides of the end of the pull rod. A pull component is connected to the bottom of the pull rod to pull the pull rod downwards, thereby snapping the bottoms of the two sets of snap-fit ​​blocks into the corresponding snap-fit ​​grooves.

[0009] As a preferred technical solution, the fixing component includes a threaded tube fixedly connected to the bottom of the connecting shaft, and a wing nut is threadedly connected to the surface of the threaded tube, with one side of the wing nut abutting the end of the polishing component.

[0010] As a preferred technical solution, the connector includes first connecting grooves respectively opened on both sides of the top of the pull rod, and second connecting grooves opened on the top of the opposite side of the two sets of snap-fit ​​blocks and at positions corresponding to the first connecting grooves. A first connecting rod is fixedly connected inside the two sets of first connecting grooves. A first connecting strip is rotatably sleeved on the outer circular surface of the two sets of first connecting rods. The ends of the two sets of first connecting strips extend into the second connecting grooves on the corresponding sides. A connecting hole is opened at the end of the first connecting strip located inside the second connecting groove along its length. A second connecting rod is slidably connected to the inner cavity of the two sets of connecting holes. The ends of the two sets of second connecting rods are fixedly connected to the inner wall of the second connecting groove on the corresponding side.

[0011] As a preferred technical solution, the pulling assembly includes a round rod inserted into the inside of the threaded tube. The end of the round rod is connected to the end of the pull rod through a rotating connector. The end of the round rod extends to the outside of the threaded tube and is fixedly connected to a handwheel. The end surface of the round rod is provided with external threads, and the round rod is threadedly connected to the inner cavity of the threaded tube through the external threads.

[0012] As a preferred technical solution, the rotating connector includes a connecting column fixedly connected to the top of the round rod, and a transition groove adapted to the connecting column is provided at the bottom center of the pull rod, and the connecting column is rotatably connected to the inner cavity of the transition groove.

[0013] As a preferred technical solution, a guide strip is fixedly connected to one side surface of the connecting shaft, and a guide groove adapted to the guide strip is opened on the inner wall of the connecting sleeve at a position corresponding to the guide strip, and the guide strip is inserted into the inner cavity of the guide groove.

[0014] As a preferred technical solution, a threaded hole is provided on one side of the head of the multi-functional machine, and a threaded rod is threadedly connected to the inner cavity of the threaded hole, and a handle is fixedly connected to the end of the threaded rod.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. This utility model, through the setting of the anti-detachment component, pulls down the pull rod, which drives the two sets of locking blocks to rotate around the fixed column through the connecting piece. The upper ends of the two sets of locking blocks rotate inward at the same time, so that the lower ends of the two sets of locking blocks respectively engage with the locking grooves on the inner walls of the two sides of the connecting sleeve, preventing the connecting shaft from falling off. Moreover, the locking blocks have a larger contact area than the threads, and have stronger resistance to vibration or overload, which can reduce the impact of vibration or overload. At the same time, it is convenient for workers to disassemble the connecting shaft.

[0017] 2. This utility model uses a pull component to pull the lever by rotating the handwheel. The operation is simple and labor-saving, and it can easily control the working status of the anti-detachment component. Moreover, the handwheel is located outside the equipment, making it convenient for operators to operate in various working scenarios.

[0018] 3. By using a rotating connector, this utility model allows the round rod to flexibly adapt to forces in different directions when driving the pull rod, avoiding damage to components caused by inflexible connections. It also ensures the smoothness of the pull rod's movement and further improves the reliability of the anti-detachment component.

[0019] 4. This utility model, through the design of the guide bar, which cooperates with the guide groove on the inner wall of the connecting sleeve, effectively restricts the radial movement of the connecting shaft within the connecting sleeve, ensuring the coaxiality of the connecting shaft during rotation. This results in smoother rotation of the polishing part, improving the accuracy and quality of the polishing operation and reducing uneven polishing caused by connecting shaft wobbling. Furthermore, when installing the connecting shaft, the guide bar can be inserted along the guide groove, quickly and accurately guiding the connecting shaft into the correct position within the connecting sleeve, avoiding positional deviations caused by blind insertion, and greatly improving the accuracy and efficiency of installation. Attached Figure Description

[0020] Figure 1 This is a structural schematic diagram of the multifunctional combined multipurpose tool of this utility model;

[0021] Figure 2 This is a structural schematic diagram from another perspective of the present invention;

[0022] Figure 3 This is a schematic diagram of the connecting shaft of this utility model;

[0023] Figure 4 This is a cross-sectional view of the connecting shaft of this utility model;

[0024] Figure 5 This is a cross-sectional structural diagram of the tie rod of this utility model;

[0025] Figure 6 This utility model Figure 5 A magnified structural diagram of point A in the middle.

[0026] In the picture:

[0027] 100. Multifunctional machine; 101. Connecting sleeve; 102. Handle; 103. Polishing part; 104. Threaded rod; 105. Threaded hole; 106. Guide groove; 107. Guide strip;

[0028] 200. Threaded pipe; 201. Connecting shaft; 202. Square groove; 203. Snap-fit ​​block; 204. Snap-fit ​​groove; 205. Fixing rod; 206. Wing nut;

[0029] 300. Tie rod; 301. Round rod; 302. External thread; 303. Handwheel; 305. Connecting post; 306. Adapter groove;

[0030] 400, First connecting groove; 401, First connecting rod; 402, Connecting strip; 403, Connecting hole; 404, Second connecting rod; 405, Second connecting groove. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0032] Please see Figure 1-6 This embodiment provides a multi-functional combination multi-purpose tool, including a multi-functional machine 100, which is the same as the multi-functional machine 100 body disclosed in Chinese Patent No. CN212095762U, which is a multi-functional electric tool. Therefore, it will not be described in detail here. The drive shaft of the multi-functional machine 100 is fixedly connected to a connecting sleeve 101. A connecting shaft 201 is inserted into the inside of the connecting sleeve 101. An anti-detachment component is provided inside the connecting sleeve 101 to prevent the connecting shaft 201 from falling off. A polishing part 103 is sleeved on the surface of the connecting shaft 201. A fixing part for fixing the polishing part 103 is provided at the tail of the connecting shaft 201.

[0033] The anti-detachment component includes square grooves 202 on both sides of the end of the connecting shaft 201. A fixing rod 205 is fixedly connected to the middle of each of the two sets of square grooves 202. A locking block 203 is rotatably sleeved on the surface of each fixing rod 205 located inside the two sets of square grooves 202. Locking grooves 204 are provided on the inner walls of both sides of the connecting sleeve 101 and at corresponding positions below the ends of the two sets of locking blocks 203. A pull rod 300 is inserted into the middle of the connecting shaft 201. Connectors for connecting the corresponding locking blocks 203 are provided on both sides of the end of the pull rod 300. A downward-pulling mechanism is connected to the bottom of the pull rod 300 to... The bottoms of the two sets of snap-fit ​​blocks 203 are respectively snapped into the corresponding side snap-fit ​​grooves 204 of the pull assembly. With the setting of the anti-detachment assembly, the pull rod 300 is pulled down, and the two sets of snap-fit ​​blocks 203 are driven to rotate around the fixed column through the connector. The upper ends of the two sets of snap-fit ​​blocks 203 rotate inward at the same time, so that the lower ends of the two sets of snap-fit ​​blocks 203 are respectively snapped into the snap-fit ​​grooves 204 on both sides of the inner wall of the connecting sleeve 101, preventing the connecting shaft 201 from falling off, and distributing the force borne by the connecting shaft 201 during operation, reducing the impact of vibration or overload. At the same time, it is convenient for the staff to disassemble the connecting shaft 201.

[0034] The multi-function machine 100 is a well-known technical means in the art. For its specific working principle and structure, please refer to Chinese Patent No. CN212095762U, which discloses a multi-function machine 100 body in a multi-function power tool. The rest will not be described in detail here.

[0035] Among them, the polishing component 103 is a well-known technical means in the art, including polishing discs, grinding wheels, diamond grinding discs, etc., thereby enabling the multi-functional machine 100 to switch between polishing and grinding.

[0036] The fixing component includes a threaded tube 200 fixedly connected to the bottom of the connecting shaft 201. The surface of the threaded tube 200 is threaded with a wing nut 206. One side of the wing nut 206 abuts against the end of the polishing part 103. By setting the fixing component, the combination of the threaded tube and the wing nut 206 makes it easy for the operator to manually tighten and loosen the wing nut 206 without the need for additional tools. This allows for convenient and quick fixing and replacement of the polishing part 103, improving work efficiency and reducing the difficulty of operation.

[0037] The connector includes first connecting grooves 400 respectively opened on both sides of the top of the pull rod 300. Two second connecting grooves 405 are opened on the top of opposite sides of the two sets of snap-fit ​​blocks 203, corresponding to the positions of the first connecting grooves 400. First connecting rods 401 are fixedly connected inside each of the two sets of first connecting grooves 400. First connecting strips 402 are rotatably sleeved on the outer surfaces of both sets of first connecting rods 401. The ends of the two sets of first connecting strips 402 extend into the corresponding second connecting grooves 405, located within the second connecting grooves 400. The first connecting strip 402 inside the 5 has connecting holes 403 along its length at both ends. The inner cavities of the two sets of connecting holes 403 are slidably connected to the second connecting rods 404. The ends of the two sets of second connecting rods 404 are respectively fixedly connected to the inner walls of the corresponding side second connecting grooves 405. Through the setting of the connecting parts, the action of the pull rod 300 can be flexibly and accurately transmitted to the locking block 203, ensuring that the locking block 203 can accurately perform locking and disengaging actions when the anti-detachment component is working, thereby enhancing the reliability and stability of the anti-detachment component.

[0038] The pulling component includes a round rod 301 inserted into the threaded tube 200. The end of the round rod 301 is connected to the end of the pull rod 300 through a rotating connector. The end of the round rod 301 extends to the outside of the threaded tube 200 and is fixedly connected to a handwheel 303. The end surface of the round rod 301 is provided with an external thread 302. The round rod 301 is threaded to the inner cavity of the threaded tube 200 through the external thread 302. By rotating the handwheel 303, the pull rod 300 can be pulled. The operation is simple and labor-saving, and the working status of the anti-detachment component can be easily controlled. Moreover, the handwheel 303 is located outside the equipment, which makes it convenient for operators to operate in various working scenarios.

[0039] The rotating connector includes a connecting post 305 fixedly connected to the top of the round rod 301. A transition groove 306 adapted to the connecting post 305 is provided at the bottom center of the pull rod 300. The connecting post 305 is rotatably connected to the inner cavity of the transition groove 306. By setting the rotating connector, the round rod 301 can flexibly adapt to forces in different directions when driving the pull rod 300, avoiding damage to components caused by inflexible connection, and ensuring the smooth movement of the pull rod 300, further improving the reliability of the anti-detachment component.

[0040] The cross-section of the connecting column 305 is T-shaped.

[0041] A guide strip 107 is fixedly connected to one side surface of the connecting shaft 201. A guide groove 106, which is adapted to the guide strip 107, is opened on the inner wall of the connecting sleeve 101 at a position corresponding to the guide strip 107. The guide strip 107 is inserted into the inner cavity of the guide groove 106. Through the setting of the guide strip 107, the guide strip 107 cooperates with the guide groove 106 on the inner wall of the connecting sleeve 101, which can effectively limit the radial movement of the connecting shaft 201 in the connecting sleeve 101, ensure the coaxiality of the connecting shaft 201 during rotation, make the rotation of the polishing part 103 more stable, improve the accuracy and quality of polishing operation, and reduce the problem of uneven polishing caused by the shaking of the connecting shaft 201. At the same time, when installing the connecting shaft 201, the guide strip 107 can be inserted along the guide groove 106, which can quickly and accurately guide the connecting shaft 201 to the correct position of the connecting sleeve 101, avoiding positional deviation caused by blind insertion, and greatly improving the accuracy and efficiency of installation.

[0042] The multi-function machine 100 has a threaded hole 105 on one side of its head. A threaded rod 104 is threaded into the inner cavity of the threaded hole 105. A handle 102 is fixedly connected to the end of the threaded rod 104. The handle 102 makes it easy for the user to hold the multi-function machine 100.

[0043] Working principle;

[0044] First, align the guide strip 107 on the surface of the connecting shaft 201 with the guide groove 106 on the inner wall surface of the connecting sleeve 101, and insert the end of the connecting shaft 201 into the inner cavity of the connecting sleeve 101.

[0045] Subsequently, when the handwheel 303 located at the bottom of the threaded tube 200 is rotated, the end of the threaded rod 301 inside the threaded tube 200 moves downward, and the pull rod 300 moves downward through the rotating connector, which in turn drives the two sets of snap-fit ​​blocks 203 to rotate around the fixed column through the connecting bar 402. The upper ends of the two sets of snap-fit ​​blocks 203 rotate inward at the same time, so that the lower ends of the two sets of snap-fit ​​blocks 203 respectively snap into the snap-fit ​​grooves 204 on both sides of the inner wall of the connecting sleeve 101, preventing the connecting shaft 201 from falling off.

[0046] By reversing the above steps, the connecting shaft 201 can be removed from the inner cavity of the connecting sleeve 101;

[0047] At this time, the polishing part 103 is sleeved on the surface of the connecting shaft 201, and the wing nut 206 is threaded onto the surface of the threaded post, so that the end of the wing nut 206 abuts against the end of the polishing part 103, thereby preventing the polishing part 103 from falling off during use.

[0048] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A multi-functional, modular, multi-purpose tool, characterized in that: The device includes a multi-functional machine (100), a drive shaft of which is fixedly connected to a connecting sleeve (101), a connecting shaft (201) is inserted into the connecting sleeve (101), an anti-detachment component is provided inside the connecting sleeve (101) to prevent the connecting shaft (201) from falling off, a polishing part (103) is sleeved on the surface of the connecting shaft (201), and a fixing part for fixing the polishing part (103) is provided at the tail of the connecting shaft (201). The anti-detachment component includes square grooves (202) on both sides of the end of the connecting shaft (201). A fixing rod (205) is fixedly connected to the middle of each of the two sets of square grooves (202). The surface of the fixing rod (205) located inside the two sets of square grooves (202) is rotatably fitted with a snap-fit ​​block (203). The inner walls of both sides of the connecting sleeve (101) and the corresponding positions of the lower ends of the two sets of snap-fit ​​blocks (203) are provided with snap-fit ​​grooves (204). A pull rod (300) is inserted into the middle of the connecting shaft (201). The ends of the pull rod (300) are respectively provided with connectors for connecting the corresponding snap-fit ​​blocks (203). The bottom of the pull rod (300) is connected to a pull component that pulls the pull rod (300) downward to snap the bottom of the two sets of snap-fit ​​blocks (203) into the corresponding snap-fit ​​grooves (204).

2. The multi-functional combined multi-purpose tool according to claim 1, characterized in that: The fastener includes a threaded tube (200) fixedly connected to the bottom of the connecting shaft (201), and a wing nut (206) is threadedly connected to the surface of the threaded tube (200), one side of which abuts against the end of the polishing component (103).

3. The multi-functional combined multi-purpose tool according to claim 2, characterized in that: The connector includes first connecting grooves (400) respectively opened on both sides of the top of the pull rod (300), and second connecting grooves (405) opened on the top of the opposite side of the two sets of snap-fit ​​blocks (203) and at the corresponding positions of the first connecting grooves (400). A first connecting rod (401) is fixedly connected inside the two sets of first connecting grooves (400). A first connecting strip (402) is rotatably sleeved on the outer surface of the two sets of first connecting rods (401). The ends of the two sets of first connecting strips (402) extend into the corresponding side of the second connecting groove (405). The ends of the first connecting strips (402) located inside the second connecting groove (405) are provided with connecting holes (403) arranged along the length. The inner cavities of the two sets of connecting holes (403) are slidably connected with second connecting rods (404). The ends of the two sets of second connecting rods (404) are fixedly connected to the inner wall of the corresponding side of the second connecting groove (405).

4. A multi-functional combined multi-purpose tool according to claim 3, characterized in that: The pulling assembly includes a round rod (301) inserted into the threaded tube (200). The end of the round rod (301) is connected to the end of the pull rod (300) through a rotating connector. The end of the round rod (301) extends to the outside of the threaded tube (200) and is fixedly connected to a handwheel (303). The end surface of the round rod (301) is provided with an external thread (302). The round rod (301) is threadedly connected to the inner cavity of the threaded tube (200) through the external thread (302).

5. A multi-functional combined multi-purpose tool according to claim 4, characterized in that: The rotating connector includes a connecting post (305) fixedly connected to the top of the round rod (301), and a transition groove (306) adapted to the connecting post (305) is provided at the bottom center of the pull rod (300). The connecting post (305) is rotatably connected to the inner cavity of the transition groove (306).

6. A multi-functional combined multi-purpose tool according to claim 1, characterized in that: A guide bar (107) is fixedly connected to one side surface of the connecting shaft (201). A guide groove (106) adapted to the guide bar (107) is opened on the inner wall of the connecting sleeve (101) at a position corresponding to the guide bar (107). The guide bar (107) is inserted into the inner cavity of the guide groove (106).

7. A multi-functional combined multi-purpose tool according to claims 1-6, characterized in that: The multi-functional machine (100) has a threaded hole (105) on one side of its head. A threaded rod (104) is threaded into the inner cavity of the threaded hole (105), and a handle (102) is fixedly connected to the end of the threaded rod (104).

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