Self-locking structure and stirring device

Abstract

The present invention relates to the technical field of stirring utensils, and provides a self-locking structure and a stirring device. In the self-locking structure, when a limiting member is connected to a connecting member, an active mechanism is connected to a driven mechanism, and the limiting member is provided with a limiting portion that restricts the connecting member from being dislodged in the axial direction. Therefore, regardless of whether the stirring device rotates clockwise or counterclockwise about its axis to stir, the connecting member is limited by the limiting portion, thereby preventing the driven mechanism from being dislodged from the active mechanism. As a result, when the stirring device is in use, the active mechanism and the driven mechanism are mutually self-locked, thereby enhancing the stability of the stirring device during stirring. The structure is simple, the operation is convenient, and the user experience is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of stirring utensils, and in particular to a self-locking structure and a stirring device. Background Art

[0002] According to the existing related machines with stirring or heating stirring integrated containers on the market, there are separate transmission structures with upper and lower clutches. The stirring containers of these transmission structures are fixed to the machine body in the following three ways, as follows:

[0003] One: The mixing container is placed directly on the machine body, relying on its own weight to maintain the stability of the entire machine during operation. The disadvantage is that when the mixing container has more food and is heavier, the stability is relatively better. However, when the machine is placed on a slightly inclined surface, with a small amount of food, or in a vibrating environment, the stability of the entire machine will become poor, posing certain safety risks to the entire machine and a poor user experience.

[0004] The second method is to place the mixing container on the machine body and use the structure on the machine body to buckle or lock the mixing container. The disadvantages are that the structure is complex and the cost is high. At the same time, the user operation is relatively complicated. When taking the cup, one hand is required to unlock it, which brings a relatively poor user experience.

[0005] Three types: the mixing container is placed on the machine body, and there is an arm-like structure on the top of the mixing container to press it, or the entire mixing container is pressed down by the action of opening and closing the cup lid and interlocking with the machine body. The disadvantage of this is that the structure is complex, the cost is high, and it is very complicated for users to operate. Every time you want to take the cup, you have to wait or open the lid before you can take it off, which brings a relatively poor experience to users. Summary of the Invention

[0006] The purpose of the present invention is to provide a self-locking structure, which is used to make the driven mechanism and the active mechanism in the stirring device self-lock with each other when the stirring device is started, aiming to solve the problem of poor user experience of existing stirring devices.

[0007] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a self-locking structure, which is used to make the driven mechanism and the active mechanism in the stirring device self-lock with each other when the stirring device is started. The self-locking structure includes a limiting member provided on the active mechanism or the driven mechanism and a connecting member that cooperates with the limiting member and is correspondingly provided on the driven mechanism or the active mechanism. The connecting member is detachably connected to the limiting member, and the limiting member is provided with a limiting portion that limits the connecting member from escaping in the axial direction.

[0008] In one embodiment, a torsion groove is provided on the limiting member, and the limiting portion is a protrusion provided at the open end of the torsion groove. A protrusion protruding toward the inner side of the torsion groove is provided on both sides of the groove opening of the torsion groove, and the torsion groove has an accommodating space for accommodating the connecting member.

[0009] In one embodiment, the connecting member includes a torsion column disposed in the accommodating space, and a width of the torsion column is smaller than a width of a notch of the torsion slot.

[0010] In one embodiment, a plurality of torsion grooves are evenly formed on the circumference of the limiting member, and the connecting member is provided with at least two torsion columns corresponding to the torsion grooves.

[0011] In one embodiment, the limiting portion has an anti-slip surface that cooperates with the connecting piece, and the anti-slip surface forms an angle with the axial direction.

[0012] In one embodiment, the limiting member includes a plurality of positioning blocks in an enclosed shape, and the connecting member includes a positioning column disposed between the positioning blocks and abutting against the positioning blocks.

[0013] In one embodiment, the limiting member is provided with a positioning sleeve that cooperates with the positioning post, and the positioning post and the positioning sleeve are cylindrical.

[0014] In one embodiment, the positioning column is provided with a locking block protruding from the wall surface of the positioning column, the positioning sleeve is provided with a guide rail cooperating with the locking block, and the middle of the guide rail is provided with an opening for inserting and removing the locking block.

[0015] In one embodiment, the positioning sleeve is provided with a locking block protruding from the wall of the positioning sleeve, the positioning column is provided with a guide rail cooperating with the locking block, and the middle of the guide rail is provided with an opening for inserting and removing the locking block.

[0016] The present application also proposes a stirring device, including an active mechanism and a driven mechanism, the stirring device also including the self-locking structure described above, the active mechanism including a motor and an active clutch connected to the motor, the driven mechanism including a driven clutch and a stirring assembly connected to the driven clutch, the limiting member in the self-locking structure is provided on the active clutch or the driven clutch, and the connecting member in the self-locking structure is correspondingly provided on the driven clutch or the active clutch.

[0017] The beneficial effects of the present invention are as follows: when the limiting member is connected to the connecting member, the active mechanism is connected to the driven mechanism, and the limiting member is provided with a limiting portion which limits the connecting member from coming out in the axial direction when rotating around the axis. Therefore, no matter whether the stirring device rotates clockwise or counterclockwise around the axis for stirring, the connecting member will be limited by the limiting portion, thereby preventing the driven mechanism from coming out of the active mechanism. As a result, when the stirring device is in use, the active mechanism and the driven mechanism are self-locked with each other, thereby enhancing the stability of the stirring device during stirring, having a simple structure, and being easy to operate, which improves the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0019] Figure 1 A schematic structural diagram of a stirring device provided in an embodiment of the present invention;

[0020] Figure 2 A schematic diagram of a partial structure of a stirring device provided in an embodiment of the present invention;

[0021] Figure 3 A schematic diagram of the three-dimensional structure of a self-locking structure provided by an embodiment of the present invention;

[0022] Figure 4 A schematic plan view of the self-locking structure provided by an embodiment of the present invention;

[0023] Figure 5 A schematic cross-sectional view of a self-locking structure provided by an embodiment of the present invention.

[0024] Description of main component symbols:

[0025] Stirring device 100; active mechanism 10; driven mechanism 20; self-locking structure 30; fixing wrench 40; housing 50; cup body 60; motor 11; output shaft 111; active clutch 12; transmission shaft 121; belt 13; mounting plate 13; driven clutch 21; stirring assembly 22; blade 221; fastening member 222; limiting member 31; connecting member 32; limiting portion 33; sealing gasket 34; torque groove 311; positioning block 312; torque column 321; positioning column 322; anti-slip surface 331; guide surface 333; guide rib 332. DETAILED DESCRIPTION

[0026] The following describes embodiments of the present invention in detail, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and are not to be construed as limiting the present invention.

[0027] In the description of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention.

[0028] 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 the technical features being referred to. Thus, a feature identified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0029] In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "connect," "fixed," etc. should be understood broadly. For example, they may refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0030] See also Figure 1-5 , shown is a self-locking structure 30 of the present application, which is used to make the driven mechanism 20 and the active mechanism 10 in the stirring device 100 self-lock with each other when the stirring device 100 is started. The self-locking structure 30 includes a limiting member 31 provided on the active mechanism 10 or the driven mechanism 20 and a connecting member 32 that cooperates with the limiting member 31 and is correspondingly provided on the driven mechanism 20 or the active mechanism 10. The connecting member 32 is detachably connected to the limiting member 31, and the limiting member 31 is provided with a limiting portion 33 that limits the connecting member 32 from escaping in the axial direction.

[0031] In this embodiment, when the limiting member 31 is connected to the connecting member 32, the active mechanism 10 is connected to the driven mechanism 20, and the limiting member 31 is provided with a limiting portion 33 that limits the connecting member 32 from disengaging in the axial direction when rotating around the axis. Therefore, no matter whether the stirring device 100 rotates clockwise or counterclockwise around the axis for stirring, the connecting member 32 will be limited by the limiting portion 33, thereby preventing the driven mechanism 20 from disengaging from the active mechanism 10, so that when the stirring device 100 is in use, the active mechanism 10 and the driven mechanism 20 are self-locked with each other, thereby enhancing the stability of the stirring device 100 during stirring.

[0032] Specifically, in this embodiment, the limiting member 31 and the connecting member 32 are detachably connected. After the connecting member 32 is installed in the limiting member 31, it is limited by the limiting portion 33 during the rotation process, so that the stirring mechanism can stir stably. After the stirring is completed, the connecting member 32 is disengaged from the limiting member 31 by external force, so that the driven clutch and the active clutch can be separated, thereby pouring out the stirred object.

[0033] In this embodiment, the limit member 31 is arranged on the active mechanism 10, and the connecting member 32 is correspondingly arranged on the driven mechanism 20. The connecting member 32 is connected to the stirring assembly 22. After the connecting member 32 is installed in the limit member 31, when the stirring device 100 stirs, the limit member 31 drives the connecting member 32 to rotate, so that the stirring assembly 22 connected to the connecting member 32 can stir stably.

[0034] Optionally, in other embodiments, the limit member 31 is provided on the driven mechanism 20, and the connecting member 32 is correspondingly provided on the active mechanism 10. The limit member 31 is connected to the stirring assembly 22. After the connecting member 32 is installed in the limit member 31, when the stirring device 100 stirs, the connecting member 32 drives the limit member 31 to rotate, so that the stirring assembly 22 connected to the limit member 31 can stir stably.

[0035] like Figure 2-5 As a specific embodiment of the self-locking structure 30 provided in the present application, a torsion groove 311 is provided on the limiting member 31, and the limiting portion 33 is a protrusion provided at the open end of the torsion groove 311. A protrusion protruding toward the inner side of the torsion groove 311 is provided on both sides of the notch of the torsion groove 311, and the torsion groove 311 forms an accommodating space for accommodating the connecting member 32.

[0036] When the cam 32 is in the closed position, the cam 32 is in the closed position, and the cam 32 is in the closed position, so that the cam 32 is not in the open position, and the cam 32 is not in the open position, so that the cam 32 is not in the open position, and the cam 32 is in the closed position, so that the cam 32 is not in the open position, and the cam 32 is in the closed position, so that the cam 32 is not in the open position, and the cam 32 is in the closed position, so that the cam 32 is not in the open position, and the cam 32 is in the closed position, so that the cam 32 is not in the open position, and the cam 32 is in the closed position, so that the cam 32 is not in the open position, and the cam 32 is in the closed position, so that the cam 32 is not in the open position, and the cam 32 is in the closed position, so that the cam 32 is not in the open position, and the cam 32 is in the closed position, so that the cam 32 is not in the open position, and the cam 32 is not in the closed position

[0037] like Figure 2-5 As a specific embodiment of the self-locking structure 30 provided in the present application, the connecting member 32 includes a torsion column 321 placed in the accommodating space, and the width of the torsion column 321 is smaller than the width of the notch of the torsion groove 311.

[0038] In this embodiment, the width of the torsion column 321 is smaller than the width of the notch of the torsion groove 311, and the user can easily place the torsion column 321 into the torsion groove 311 or take it out from the torsion groove 311 through the notch of the torsion groove 311. Therefore, when using the stirring device 100 in this embodiment, the user can easily connect the driven mechanism 20 with the active mechanism 10, so that the driven mechanism 20 stirs under the action of the active mechanism 10. After the stirring is completed, the driven mechanism 20 can be easily separated from the active mechanism 10. During the entire operation, the user does not need to perform any locking or loosening operations, and the operation method is simple.

[0039] like Figure 2-5 As a specific embodiment of the self-locking structure 30 provided in the present application, a plurality of torsion grooves 311 are evenly opened on the circumference of the limiting member 31, and the connecting member 32 is provided with at least two torsion columns 321 corresponding to the torsion grooves 311.

[0040] In this embodiment, the connecting member 32 and the limiting member 31 are connected by cooperating with at least two torsion columns 321 and the torsion groove 311. The torsion grooves 311 are the same in size and shape, and the torsion columns 321 are the same in size and shape. Therefore, when one of the torsion columns 321 abuts against the wall of the torsion groove 311, the remaining torsion columns 321 will also abut against one of the walls of the corresponding torsion groove 311. The cooperation of multiple groups of torsion columns 321 and the torsion grooves 311 ensures that when the stirring device 100 is in operation, the self-locking structure 30 is evenly stressed, thereby achieving a stable self-locking effect and ensuring the stable operation of the stirring device 100.

[0041] Optionally, an even number of torsion grooves 311 are provided on the limiting member 31, and any torsion groove 311 has another torsion groove 311 corresponding to it and located on the same straight line. Two torsion columns 321 are provided on the connecting member 32, and the two torsion columns 321 are located on the same straight line. When connecting the connecting member 32 to the limiting member 31, the two torsion columns 321 can be placed in any group of two torsion grooves 311 located on the same straight line. This method reduces the consumables of the connecting member 32 during the production process and enables the connecting member 32 to be more flexibly connected to the limiting member 31.

[0042] Optionally, a plurality of torsion grooves 311 are provided on the limiting member 31, and an equilateral triangle is formed between three torsion grooves 311 among the plurality of torsion grooves 311. Three torsion columns 321 are provided on the connecting member 32, and the ends of the three torsion columns 321 form an equilateral triangle. When connecting the connecting member 32 to the limiting member 31, the three torsion columns 321 can be placed in any group of three corresponding torsion grooves 311. The triangle is stable, and this setting further ensures the stable connection between the connecting member 32 and the limiting member 31.

[0043] Specifically, in this embodiment, four torsion grooves 311 of the same size are evenly distributed radially on the limiting member 31 , and the connecting member 32 includes four torsion columns 321 of the same size that are evenly distributed radially.

[0044] like Figure 2-3 As a specific embodiment of the self-locking structure 30 provided in the present application, the limiting portion 33 has an anti-slip surface 331 that cooperates with the connecting member 32, and the anti-slip surface 331 forms an angle with the axial direction.

[0045] Specifically, in this embodiment, the anti-slip surface 331 is located at the connection between the groove wall of the torsion groove 311 and the opening of the torsion groove 311. When the active mechanism 10 drives the driven mechanism 20 to rotate, the torsion column 321 will be subjected to torsion and thus contact and force a single surface in the accommodating space of the torsion groove 311, thereby achieving the purpose of mutual rotation. Because during the rotation process, one side surface of the torsion column 321 and one side surface of the torsion groove 311 are always in contact with force, and the higher the speed or the greater the torque, the contact force between the two is getting larger and larger, and is proportional. When the stirring device 100 is running, if the active mechanism 10 and the driven mechanism 20 When the torsion column 321 is shaken, one side of the torsion groove 311 is always in force contact. The anti-slip surface 331 is located at the connection between the groove wall of the torsion groove 311 and the opening of the torsion groove 311, and forms an angle with the axial direction. Therefore, when the torsion column 321 abuts against one side of the torsion groove 311 and has a tendency to fall out, the anti-slip surface 331 will cause the torsion column 321 to be subjected to axial resistance from the anti-slip surface 331. Therefore, the torsion column 321 will be subjected to a steering torque and an axial resistance at the same time. The combination of the two can prevent the torsion column 321 from shaking and loosening during rotation, so that the connecting member 32 and the limit member 31 are stably self-locking when the stirring mechanism is operating. When the stirring device 100 is not rotating, the torsion column 321 is not subjected to the steering torque from the wall of the torsion groove 311 and can be easily removed from the torsion groove 311. Even if the torsion column 321 is subjected to resistance from the anti-slip surface 331, the rotating part of the driven mechanism 20 is not restricted and can rotate freely, so the removal process is also very easy.

[0046] like Figure 2-5 As a specific embodiment of the self-locking structure 30 provided in the present application, the limiting member 31 includes a plurality of positioning blocks 312 in an enclosed shape, and the connecting member 32 includes a positioning column 322 placed between the positioning blocks 312 and abutting against the positioning blocks 312.

[0047] In this embodiment, the positioning column 322 is arranged in the middle of the connecting member 32, and the torsion column 321 is arranged on the side of the positioning column 322. The positioning column 322 is used to determine the installation position of the connecting member 32 to ensure that the torsion column 321 in the connecting member 32 and the torsion groove 311 in the limiting member 31 are installed correspondingly, so that the two are self-locked with each other when the stirring device 100 is working.

[0048] In this embodiment, the limiting member 31 is cylindrical, and a plurality of torsion grooves 311 are opened in the limiting member 31. The torsion grooves 311 are evenly distributed. The positioning blocks 312 are arranged between the torsion grooves 311 and serve as the groove walls of the torsion grooves 311. The positioning blocks 312 are enclosed and form a limited space. The size of the limited space is consistent with the size of the positioning column 322 in the connecting member 32, thereby determining the installation position between the connecting member 32 and the limiting member 31, ensuring that stable transmission can be achieved between the driven clutch and the active clutch.

[0049] When the cam 331 is in the unlock state, the locking cam 332 is in the unlock state, and the locking cam 333 is in the unlock state, so that the cam 331 can be unlocked.

[0050] In an optional embodiment, a positioning sleeve that cooperates with the positioning column 322 is provided on the limiting member 31 , and the positioning column 322 and the positioning sleeve are cylindrical.

[0051] In this embodiment, due to the limitation of the positioning block 312, during installation, the positioning column 322 can be accurately socketed with the positioning sleeve, and the positioning sleeve further determines the position of the positioning column 322. The inner wall diameter of the positioning sleeve is equivalent to the outer wall diameter of the positioning column 322. The positioning column 322 is inserted into the interior of the positioning sleeve and fits with the positioning sleeve. Therefore, after the positioning column 322 is socketed with the positioning sleeve, the relative position between the active mechanism 10 and the driven mechanism 20 is further limited, so that when the stirring device 100 is in operation, the driven mechanism 20 will not be offset, thereby performing stable stirring.

[0052] Optionally, in other embodiments, a cylindrical structure may be provided at the end of the positioning column 322, and the inner wall diameter of the cylindrical structure is equivalent to the outer wall diameter of the positioning sleeve. When the two are connected, the positioning sleeve is inserted into the cylindrical structure of the positioning column 322, and the outer wall of the positioning sleeve abuts against the inner wall of the cylindrical structure of the positioning column 322.

[0053] Optionally, in other embodiments, the positioning sleeve may be an annular structure having two layers of cylindrical walls. A cylindrical structure is provided at the end of the positioning column 322, and an annular track that is completely adapted to the cylindrical wall of the cylindrical structure is formed between the two cylindrical walls. The cylindrical structure of the positioning column 322 is inserted into the annular track and abuts against the two layers of cylindrical walls of the positioning sleeve, thereby realizing the connection between the positioning column 322 and the positioning sleeve.

[0054] In an optional embodiment, the positioning column 322 is provided with a locking block protruding from the wall of the positioning column 322, the positioning sleeve is provided with a guide rail that cooperates with the locking block, and the middle of the guide rail is provided with an opening for inserting and removing the locking block.

[0055] In this embodiment, the positioning post 322 is inserted into the positioning sleeve and fits with the positioning sleeve. The positioning post 322 is provided with several locking blocks protruding from the outer wall of the positioning post 322, and the position of each locking block completely corresponds to the position of the torque post 321. The positioning sleeve is correspondingly provided with several groups of guide rails, and the diameter length of each guide rail corresponds to the two inner walls of the torsion groove 311. The position of the opening on the guide rail corresponds to the position of the notch of the torsion groove 311. When the torsion post 321 is aligned with the notch of the torsion groove 311, the locking block on the positioning post 322 is aligned with the position of the opening on the guide rail, so that the locking block can smoothly enter the guide rail, and when the torsion post 321 is disengaged from the torsion groove 311, the locking block can also smoothly disengage from the guide rail.

[0056] Specifically, the opening of the guide rail is arranged in the middle of the guide rail, that is, after the locking block enters the guide rail from the opening of the guide rail, the stirring device 100 rotates in a clockwise direction or a counterclockwise direction, and the locking block can move accordingly in the guide rail, so that when the stirring device 100 is in operation, the driven mechanism 20 will not be offset in the process of being driven to rotate by the active mechanism 10, thereby further ensuring the stability of the operation of the stirring device 100.

[0057] In an optional embodiment, the positioning sleeve is provided with a locking block protruding from the wall of the positioning sleeve, the positioning column 322 is provided with a guide rail that cooperates with the locking block, and the middle of the guide rail is provided with an opening for inserting and removing the locking block.

[0058] In this embodiment, the positioning column 322 is inserted into the interior of the positioning sleeve and fits with the positioning sleeve. The positioning sleeve is provided with several locking blocks protruding from the inner wall of the positioning sleeve, and the position of each locking block completely corresponds to the position of the opening of the torque groove 311. Several groups of guide rails are correspondingly provided on the outer wall of the positioning column 322, and the diameter of each guide rail corresponds to the two inner walls of the torque groove 311. The position of the opening on the guide rail corresponds to the position of the torque column 321. When the torsion column 321 is aligned with the notch of the torsion groove 311, the locking block on the positioning sleeve is aligned with the position of the opening on the guide rail, so that the locking block can smoothly enter the guide rail, and when the torsion column 321 is disengaged from the torsion groove 311, the locking block can also be smoothly disengaged from the guide rail. After the locking block enters the guide rail from the opening of the guide rail, the stirring device 100 rotates in the clockwise direction or counterclockwise direction, and the locking block can move accordingly in the guide rail, so that when the stirring device 100 is in operation, the driven mechanism 20 will not deviate during the process of being driven to rotate by the active mechanism 10, further ensuring the stability of the operation of the stirring device 100.

[0059] like Figure 1 The present application also proposes a stirring device 100, comprising an active mechanism 10, a driven mechanism 20 and a self-locking structure 30. The self-locking structure 30 is used to make the driven mechanism 20 and the active mechanism 10 in the stirring device 100 self-lock with each other when the stirring device 100 is started. The active mechanism 10 comprises a motor 11 and an active clutch 12 connected to the motor 11. The driven mechanism 20 comprises a driven clutch 21 and a stirring assembly 22 connected to the driven clutch 21. The limiting member 31 in the self-locking structure 30 is provided on the active clutch 12 or the driven clutch 21. The connecting member 32 in the self-locking structure 30 is correspondingly provided on the driven clutch 21 or the active clutch 12.

[0060] In this embodiment, the stirring device 100 includes an active mechanism 10 and a driven mechanism 20. The active mechanism 10 drives the driven mechanism 20 to rotate for stirring. When the stirring device 100 is working, the active mechanism 10 and the driven mechanism 20 are locked with each other through a self-locking structure 30, so that the driven mechanism 20 will not fall out of the active mechanism 10 during rotation, thereby ensuring the stability of the stirring device 100.

[0061] Specifically, in this embodiment, the stirring device 100 includes a shell 50, and the active mechanism 10 includes a motor 11 installed in the shell 50 and an active clutch 12 connected to the motor 11. The motor 11 is provided with an output shaft 111, and the active clutch 12 is provided with a transmission shaft 121. A belt 13 is wound around the output shaft 111 and the transmission shaft 121. Through the transmission of the belt 13, when the motor 11 is started, the output shaft 111 drives the transmission shaft 121 to rotate. The limit member 31 in the self-locking structure 30 is provided on the active clutch 12, and the limit member 31 is connected to the transmission shaft 121 and rotates with the transmission shaft 121. The driven mechanism 20 includes a driven clutch 21 and a stirring assembly 22 connected to the driven clutch 21. The driven clutch 21 drives the stirring assembly 22 to stir the object. The connecting member 32 in the self-locking structure 30 is provided on the driven clutch 21. Therefore, when the transmission shaft 121 rotates, the limit member 31 and the connecting member 32 connected to the limit member 31 will also rotate accordingly, thereby causing the driven clutch 21 and the stirring assembly 22 connected to the driven clutch 21 to rotate, thereby stirring the object.

[0062] More specifically, the stirring device 100 includes a cup body 60, the stirring assembly 22 includes a fastening part 222 and a blade 221 rotatably connected to the fastening part 222, and the stirring assembly 22 is fastened by the fixing wrench 40 to be connected to the cup body 60. After the connection, the blade 221 is arranged near the bottom of the cup body 60, and the driven clutch 21 includes a stirring shaft connected to the connecting part 32 and rotating synchronously with the connecting part 32. The stirring shaft drives the blade 221 to rotate, so that the blade 221 cuts and stirs the object.

[0063] Furthermore, the motor 11 is disposed on the side of the cup body 60, and the housing 50 housing the motor 11 does not contact the cup body 60. The motor 11 itself will vibrate to a certain extent during use. In this embodiment, the motor 11 drives the driven clutch 21 via the belt 13, thereby ultimately driving the blade 221 to rotate, thereby avoiding connection with the cup body 60. As a result, the motor 11 does not affect the stirring effect of the blade 221 in the cup body 60 during use.

[0064] In this embodiment, the stirring shaft is passed through the bottom of the cup body 60 and a sealing ring is provided between the cup body 60 to avoid liquid leakage, and a pouring lip is provided on the active clutch 12. When liquid leakage occurs in the cup body 60, the pouring lip will guide the leaked liquid to the outside to prevent the leakage from entering the body of the stirring device 100. A sealing gasket 34 is provided between the active clutch 12 and the driven clutch 21. The sealing gasket 34 is specifically provided between the connecting part 32 and the limiting part 31 to further prevent the leakage from entering the body transmission mechanism and affecting the service life of the stirring device 100.

[0065] When the stirring device 100 in this embodiment is in use, the driven clutch 21 is assembled on the active clutch 12 through the torsion column 321 and the torsion groove 311, and the motor 11 is started. The motor 11 drives the limiter 31 in the active clutch 12 to rotate, and the limiter 31 drives the connecting member 32 in the driven clutch 21 to rotate, thereby causing the blade 221 to rotate to cut and stir the material to be stirred. During the rotation, the connecting member 32 and the limiter 31 are self-locked, thereby preventing the driven clutch 21 from escaping from the active clutch 12, thereby ensuring the stable use of the stirring device 100.

[0066] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A self-locking structure for making the driven mechanism and the active mechanism in the stirring device self-lock with each other when the stirring device is started, characterized in that: The self-locking structure includes a limiting member provided on the active mechanism or the driven mechanism, and a connecting member cooperating with the limiting member and correspondingly provided on the driven mechanism or the active mechanism, wherein the connecting member is detachably connected to the limiting member, and the limiting member is provided with a limiting portion that limits the connecting member from being dislodged in the axial direction; The limiting member is provided with a torsion groove, wherein the limiting portions are protrusions provided on both sides of the torsion groove opening and protruding toward the inner side of the torsion groove, wherein the width of the torsion groove opening is smaller than the width between the inner side walls of the torsion groove, and the torsion groove has an accommodating space for accommodating the connecting member; the connecting member includes a torsion column disposed in the accommodating space, wherein the width of the torsion column is smaller than the width of the notch of the torsion groove; The limiting portion has an anti-slip surface that cooperates with the connecting piece, and the anti-slip surface forms an angle with the axial direction; The limiting member includes a plurality of positioning blocks in an enclosed shape, and the connecting member includes a positioning column placed between the positioning blocks and abutting against the positioning blocks; The limiting member is provided with a positioning sleeve that cooperates with the positioning post, and the positioning post and the positioning sleeve are cylindrical; The positioning column is provided with a locking block protruding from the wall surface of the positioning column, the positioning sleeve is provided with a guide rail that cooperates with the locking block, and the middle of the guide rail is provided with an opening for inserting and removing the locking block; Alternatively, the positioning sleeve is provided with a locking block protruding from the wall of the positioning sleeve, the positioning column is provided with a guide rail cooperating with the locking block, and the middle of the guide rail is provided with an opening for inserting and removing the locking block.

2. The self-locking structure according to claim 1, characterized in that: A plurality of torsion grooves are evenly formed on the circumference of the limiting member, and the connecting member is provided with at least two torsion columns corresponding to the torsion grooves.

3. A stirring device, comprising an active mechanism and a driven mechanism, characterized in that: The stirring device also includes the self-locking structure described in any one of claims 1-2, the active mechanism includes a motor and an active clutch connected to the motor, the driven mechanism includes a driven clutch and a stirring assembly connected to the driven clutch, the limiter in the self-locking structure is provided on the active clutch or the driven clutch, and the connecting member in the self-locking structure is correspondingly provided on the driven clutch or the active clutch.

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