Multifunctional tool

Abstract

The utility model discloses a multifunctional tool which outputs power enabling a workpiece to swing repeatedly through an output shaft and contains a receiving device used for keeping the workpiece on the output end of the output shaft, the receiving device comprises a receiving mechanism and a locking mechanism, the receiving mechanism is provided with two working positions, and when the receiving mechanism is in the closed position, the locking mechanism is in the locked position. When the receiving device is in the opening position, the workpiece can fall onto the receiving mechanism or be separated from the receiving mechanism, and when the receiving device is in the opening position, the workpiece is stably kept on the output shaft by the receiving device and cannot fall off even when the output shaft runs at a high speed. The locking mechanism comprises an operating piece capable of changing the working position of the receiving mechanism and a locking piece for keeping the working position of the receiving mechanism; when the operating part is used, the receiving mechanism is forced to move from the open position to the closed position, and the workpiece held on the receiving mechanism is released at the moment; when the receiving mechanism is in the closed position, the locking piece can limit the receiving mechanism to move towards the open position under the condition that the operating piece is not used.

Description

Technical Field

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

[0002] A multi-tool (also known as a "jack-of-all-trades") is a power tool that can perform multiple tasks by changing different attachments. It typically consists of a main unit and interchangeable accessories, and is widely used for grinding, cutting, scraping, polishing, and other tasks. Compared to other specialized tools, multi-tools are smaller in size, making them easier to operate and control. They are suitable for tasks requiring precise control and limited operating space. Various attachments (such as grinding discs, cutting discs, sandpaper, scrapers, etc.) are available to meet different work needs.

[0003] Chinese invention patent document CN201480043554.8 discloses a tool machine with a tool receiving device, which has at least one tensioning device, at least one holding device, and at least one locking device. The tool machine locks the holding device through the locking device, allowing the tool to be quickly installed on the holding device. When the tool machine finishes working, the tool is in a high-temperature state, and the tool is released by applying external force to the tensioning device, reducing the risk of burns to the operator. However, the locking device in this solution uses the friction between the relevant components to lock the state. Under long-term operation, the components will wear down with each other, causing the friction to decrease and the steady state to be easily broken, resulting in the instability of the tool machine, affecting the user's work efficiency, and possibly causing unpredictable accidents. Summary of the Invention

[0004] To address the aforementioned problems, this utility model provides a multifunctional tool, which offers a technical solution for effectively stabilizing the state of various mechanisms.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows:

[0006] A multi-tool having a receiving device mounted on an output shaft, comprising:

[0007] The receiving mechanism has at least one closed position for receiving and placing workpieces and at least one open position for locking workpieces;

[0008] The locking mechanism has an operating element capable of forcing the receiving mechanism out of the open position and a locking element preventing the receiving mechanism from leaving the closed position;

[0009] The receiving mechanism forces the locking member away from the receiving mechanism when the receiving mechanism is in the disengaged closed position, and the locking member approaches the receiving mechanism when the receiving mechanism is in the disengaged open position, and the locking mechanism further comprises a first elastic member for pushing the locking member to approach the receiving mechanism.

[0010] Further, the receiving mechanism comprises at least one pair of receiving members, and each pair of the receiving members is arranged staggeredly and rotates in opposite directions.

[0011] Further, the receiving mechanism comprises at least one pair of receiving members, and the receiving mechanism further comprises a pull rod penetrating the output shaft and a second elastic member sleeved on the pull rod, and the second elastic member is configured to push the receiving mechanism to move to the open position through the pull rod.

[0012] Further, the receiving mechanism comprises at least one pair of receiving members, and the receiving mechanism further comprises a locking pin penetrating a guide slot on the receiving member, and the locking pin is connected with the pull rod.

[0013] Further, the receiving mechanism comprises at least one pair of receiving members, and the receiving member is hinged on a rotating pin, and the pull rod drives the receiving member to move around the rotating pin through the locking pin.

[0014] Further, the receiving mechanism comprises at least one pair of receiving members, and one end of the pull rod is provided with a locking slot matched with the locking member, and when the receiving mechanism is in the closed position, the locking member is partially embedded in the locking slot to prevent the receiving mechanism from being disengaged from the closed position.

[0015] Further, the receiving mechanism comprises at least one pair of receiving members, and the operating member comprises a trigger for pushing the receiving mechanism to move to the closed position through the pull rod.

[0016] Further, the receiving mechanism comprises at least one pair of receiving members, and the locking member is provided with a locking section and an unlocking section which are communicated with each other, and when the receiving mechanism is in the closed position, the locking pin slides into the locking section and prevents the receiving mechanism from being disengaged from the closed position, and when the receiving mechanism is in the open position, the locking pin slides into the unlocking section.

[0017] Further, the receiving mechanism comprises at least one pair of receiving members, and the locking member is abutted with the receiving member, and the receiving member can push the locking member away from the receiving mechanism when the receiving member moves to the open position.

[0018] The utility model discloses relative to prior art has the beneficial effect that:

[0019] The receiving mechanism and the locking mechanism provided by the utility model are more stable in the locking state than prior art, and the stability is not easy to be damaged due to running-in, vibration and accidental touch, and meanwhile, the technical scheme in the application reduces the complex structure required for realizing the conversion of the locking mechanism between the closed position and the locking position, and reduces the manufacturing cost and the maintenance cost of the multifunctional tool. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a structure schematic view of a multifunctional tool in the embodiment of the utility model;

[0021] Figure 2 It is a three-dimensional structure schematic view of a receiving device in the embodiment of the utility model;

[0022] Figure 3 It is an explosion view of the receiving device in the embodiment of the utility model;

[0023] Figure 4 It is a front view when the receiving mechanism is in the open position in the embodiment of the utility model;

[0024] Figure 5 It is a three-dimensional schematic view of part structure; Figure 4

[0025] It is a three-dimensional schematic view of part structure; Figure 6

[0026] It is a front view when the receiving mechanism is in the closed position in the embodiment of the utility model; Figure 7 Figure 6 It is a three-dimensional schematic view of part structure;

[0027] Figure 8 It is a three-dimensional structure schematic view of an operating piece in the embodiment of the utility model;

[0028] Figure 9 It is a three-dimensional structure schematic view of a receiving piece in the embodiment of the utility model;

[0029] Figure 10 It is a three-dimensional structure schematic view of a positioning seat in the embodiment of the utility model;

[0030] Figure 11 It is a three-dimensional structure schematic view of a pull rod in the embodiment of the utility model.

[0031] In the drawing:

[0032] 1, shell; 11, output shaft;

[0033] 2, receiving mechanism; 21, receiving piece; 211, guide groove; 212, locking protrusion; 22, rotating pin; 23, locking pin; 24, pull rod; 241, locking groove; 242, annular protrusion; 25, second elastic piece;

[0034] 3, locking mechanism; 31, locking piece; 311, first elastic piece; 312, clearance groove; 32, operating piece; 321, wrench; 322, fastener;

[0035] 4, workpiece;​

[0036] 5, positioning seat; 51, positioning groove. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the present application will be clearly and completely described with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. The description of the at least one exemplary embodiment is actually only illustrative, but not as any limitation on the present application and its application or use. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0038] Those skilled in the art can understand that the features in the following embodiments and implementation manners can be combined with each other without conflict.

[0039] The terms used in the present application are only for the purpose of describing specific embodiments, and are not intended to limit the present application. For example, the words indicating the orientation or position relationship such as "upper", "lower", "front", "back" and the like in the following description are only based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as limiting the present application in indicating or implying that the device / element must have a specific orientation or be constructed and operated in a specific orientation.

[0040] As used in this specification, the singular forms "a", "an" and "the" include plural referents unless the content clearly dictates otherwise. As used in this specification, the term "or" is generally employed in its sense of "and / or" unless the content clearly dictates otherwise, and the terms "mount", "connected", "connection" should be understood broadly, for example, can be fixedly connected, can be detachably connected, or integrally connected. It can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication or interaction relationship of two elements.

[0041] Please refer to Figures 1-10The utility model embodiment provides a kind of multifunctional tool, the multifunctional tool is by output shaft 11 output and makes workpiece 4 repeatedly swing power, output shaft 111 in shell 1 is in cylindrical structure, positioning seat 5 in output shaft 11 contains the receiving device applied to keep workpiece 4 on the output end of output shaft 111, receiving device includes receiving mechanism 2 and locking mechanism 3, wherein, receiving mechanism 2 has two working positions, when in closed position, workpiece 4 can fall into receiving mechanism 2 or separate from receiving mechanism 2, and when in open position, workpiece 4 is stably kept on output shaft 11 by receiving device, even when output shaft 11 high-speed operation, it will not fall off.

[0042] Locking mechanism 3 includes operating piece 32 that can change the working position of receiving mechanism 2 and locking piece 31 that keeps the working position of receiving mechanism 2;When operating piece 32 is used, receiving mechanism 2 is forced to move from open position to closed position, and workpiece 4 kept on receiving mechanism 2 is released at this time;And locking piece 31 can limit receiving mechanism 2 from moving to open position without external force when receiving mechanism 2 is in closed position;Wherein, receiving mechanism 2 will force locking piece 31 away from receiving mechanism 2 when it is separated from closed position, so as to avoid locking piece 31 blocking the movement of receiving mechanism 2, and locking piece 31 will approach receiving mechanism 2 when receiving mechanism 2 separates from open position to closed position, so that locking piece 31 blocks receiving mechanism 2 from separating from closed position.

[0043] Specifically, a pair of receiving pieces 21 in the form of scissors are arranged in receiving mechanism 2, the two receiving pieces 21 are pivotally connected to each other on rotating pin 22 in receiving mechanism 2 and rotate in opposite directions around the axis of rotating pin 22. The outer side of each receiving piece 21 abuts against one locking piece 31, and the receiving piece 21 rotates to drive the locking piece 31.

[0044] A pull rod 24 is arranged in output shaft 11, the middle part of pull rod 24 is provided with an annular protrusion 242, a second elastic member 25 is sleeved on the part of pull rod 24 between annular protrusion 242 and positioning seat 5, the second elastic member 25 provides an upward force to pull rod 24, so that pull rod 24 always moves upward, thereby providing power for receiving mechanism 2 to move to open position;But locking piece 31 can block the upward movement of pull rod 24 when receiving mechanism 2 is in closed position, thereby avoiding that pull rod 24 drives receiving piece 21 to move to open position.

[0045] Specifically, guide slot 211 is provided on receiving piece 21, guide slot 211 is a long strip-shaped perforation, one end of pull rod 24 passes through guide slot 211 by locking pin 23 arranged at the end to drive receiving piece 21 to move around rotating pin 22, thereby controlling the movement of receiving mechanism 2 between closed position and open position,

[0046] In this embodiment, the pull rod 24 is provided with a locking groove 241 at one end close to the receiving mechanism 2, the locking groove 241 is matched with the shape of the locking member 31, so that the locking member 31 can freely move in the locking groove 241, and the locking member 31 is provided with a first elastic member 311 at one end away from the locking groove 241, the first elastic member 311 pushes the locking member 31 in the direction of embedding into the locking groove 241, and also limits the locking member 31 from being separated from the locking groove 241 without external force, avoiding the pull rod 24 moving upward under the action of the second elastic member 25 and being separated from the locking of the locking member 31.

[0047] The positioning seat 5 is also provided with a positioning groove 51 extending radially along the output shaft 11, one end of the positioning groove 51 is close to the output shaft 11, and the other end is close to the pull rod 24. The receiving member 21 is provided with a locking protrusion 212 at the position abutting against the locking member 31, the locking protrusion 212 can push the locking member 31 to separate from the locking groove 241 and enter the positioning groove 51 when the receiving member 21 moves from the closed position to the open position, so that the locking member 31 is away from the receiving mechanism 2.

[0048] The end of the pull rod 24 away from the receiving mechanism 2 is provided with an operating member 32 for pushing the pull rod 24 to move downward, the operating member 32 includes a wrench 321 and a buckle 322, when the wrench 321 is lifted, the thicker part of the cam on the wrench 321 abuts against the pull rod 24, pushing the pull rod 24 and moving downward, so that the locking pin 23 connected with the pull rod 24 pushes the receiving member 21 to move to the closed position, and at the same time, the locking member 31 moves to the direction of entering the locking groove 241 under the pushing of the first elastic member 311. After operating the wrench 321, the wrench 321 can be temporarily fixed by the buckle 322.

[0049] In addition, in order to reduce the thickness of the positioning seat 5, it is necessary to reduce the stroke of the locking member 31 in limited space, so that the locking member 31 is provided with a clearance groove 312, the clearance groove 312 is used to accommodate the locking protrusion 212 of the receiving member 21, when the locking member 31 approaches the farthest end of the positioning groove 51, the locking protrusion 212 begins to enter the clearance groove 312, so as to avoid the receiving member 21 excessively pressing the locking member 31.

[0050] The working principle of this embodiment is as follows:

[0051] When the receiving member 21 of the receiving mechanism 2 is in the closed position, the pull rod 24 has a tendency to move upward under the push of the second elastic member 25, but the locking member 31 embedded in the locking slot 241 of the pull rod 24 limits the movement of the pull rod 24, so that the receiving member 21 remains in the closed position; at this time, the form of the part of the receiving member 21 for receiving the workpiece 4 facilitates the workpiece 4 to be separated from or received by the receiving mechanism 2. At this time, the receiving member 21 is forced to rotate and push the locking member 31 out of the locking slot 241 and away from the receiving mechanism 2 by the workpiece 4 giving the receiving mechanism 2 an external upward force, at this time the pull rod 24 moves upward under the action of the second elastic member 25, further driving the receiving member 21 to move to the open position, and finally locking the workpiece 4.

[0052] When the receiving member 21 of the receiving mechanism 2 is in the open position, the locking member 31 is located in the positioning slot 51, the pull rod 24 maintains the receiving member 21 in the open position under the elastic potential of the second elastic member 25, at this time lifting the wrench 321 gives the pull rod 24 an external downward force, making the pull rod 24 push the receiving member 21 to rotate, the locking member 31 is subjected to a force that is reduced by the abutting force of the locking protrusion 212 of the receiving member 21, and the first elastic member 311 moves the locking member 31 in the direction close to the receiving mechanism 2, when the pull rod 24 reaches the appropriate position, the locking member 31 enters the locking slot 241, at this time even if the wrench 321 is loosened, the pull rod 24 is still limited to move upward by the locking member 31, and the receiving member 21 returns to the closed position, thereby releasing the workpiece 4 locked on the receiving mechanism 2.

[0053] The above is only a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, and those skilled in the art should understand that the present application includes but is not limited to the content described in the above specific embodiment. Any modification that does not deviate from the functional and structural principles of the present application will be included in the scope of the claims.

Claims

1. A multi-purpose tool having a receiving device mounted on an output shaft, characterized in that, The utility model relates to a device for receiving and locking workpieces, comprising: a receiving mechanism having at least one closed position for receiving workpieces and at least one open position for locking workpieces; a locking mechanism having an operating member capable of forcing the receiving mechanism to move away from the open position and a locking member blocking the receiving mechanism from moving away from the closed position; wherein the receiving mechanism forces the locking member to move away from the receiving mechanism when moving away from the closed position, the locking member moves close to the receiving mechanism when the receiving mechanism moves away from the open position, and the locking mechanism further comprises a first elastic member pushing the locking member to move close to the receiving mechanism.

2. The multi-purpose tool of claim 1, wherein: The receiving mechanism comprises at least one pair of receiving members, each pair of receiving members being installed staggeredly and rotating in opposite directions.

3. The multi-purpose tool of claim 2, wherein: The receiving mechanism further comprises a pull rod penetrating the output shaft and a second elastic member sleeved on the pull rod, the second elastic member being configured to push the receiving mechanism to move to the open position through the pull rod.

4. The multi-purpose tool of claim 3, wherein: The receiving mechanism further comprises a locking pin penetrating a guide slot on the receiving member, the locking pin being connected with the pull rod.

5. The multi-purpose tool of claim 4, wherein: The receiving member is hinged on a rotating pin, and the pull rod drives the receiving member to move around the rotating pin through the locking pin.

6. The multi-purpose tool of claim 5, wherein: One end of the pull rod has a locking slot matched with the locking member, and when the receiving mechanism is in the closed position, the locking member is partially embedded in the locking slot to block the receiving mechanism from moving away from the closed position.

7. The multi-purpose tool of claim 5, wherein: The operating member comprises a trigger pushing the receiving mechanism to move to the closed position through the pull rod.

8. The multi-purpose tool of claim 5, wherein: The locking member has a locking segment and an unlocking segment in communication with each other, when the receiving mechanism is in the closed position, the locking pin slides into the locking segment and blocks the receiving mechanism from moving away from the closed position, and when the receiving mechanism is in the open position, the locking pin slides into the unlocking segment.

9. The multi-purpose tool of claim 2, wherein: The locking member abuts against the receiving member, and the receiving member can push the locking member to move away from the receiving mechanism when moving to the open position.

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