A clutch structure and control box

Abstract

The clutch structure and control box include a transmission shaft and an input wheel, an output wheel and a clutch assembly which are respectively sleeved on the transmission shaft and coaxially arranged; a clutch cavity for accommodating the clutch assembly is provided in the output wheel; the clutch assembly includes a retaining frame, a transmission member, a rolling member and a V-shaped spring piece; a accommodating cavity for accommodating the transmission member is provided in the retaining frame, the input wheel is connected to the transmission member through the transmission shaft, a first gap is provided between the output wheel and the retaining frame, and a second gap is provided between the retaining frame and the transmission member; a through hole is provided on the retaining frame, a supporting portion is formed on the transmission member, the V-shaped spring piece is accommodated in the second gap and its two ends are respectively fixedly connected to the two sides of the through hole, so that the V-shaped spring piece, the through hole and the output wheel form a channel for accommodating the rolling member and for the rolling member to roll; the input wheel is rotated to drive the supporting portion, the V-shaped spring piece, the rolling member and the output wheel to abut in sequence, and the output wheel is rotated to cause the supporting portion, the V-shaped spring piece, the rolling member and the output wheel to disengage from abutment respectively.

Description

Technical Field

[0001] The present invention relates to the field of mechanical transmission, and in particular to a clutch structure and a control box. Background Art

[0002] In the field of mechanical transmission and electronic equipment, clutches are often used to adapt to different application scenarios. The clutch is mainly used to connect and disconnect the movement of the shaft and the idler transmission parts on the shaft or the two coaxial shafts, thereby realizing the start, stop, speed change and direction change of movement.

[0003] There are many types of clutches on the market, including two-way clutches and one-way clutches. One-way clutches have a relatively wide range of applications. Existing clutch structures that use gear transmission to achieve clutching can achieve one-way transmission functions, but they are difficult to assemble and may slip during use, resulting in unstable transmission. Summary of the Invention

[0004] The object of the present invention is to provide a clutch structure and a control box, which can stably transmit power and have the advantages of simple structure and easy assembly.

[0005] The embodiment of the present invention is achieved as follows:

[0006] One aspect of an embodiment of the present invention provides a clutch structure, comprising a transmission shaft, and an input rotor, an output rotor, and a clutch assembly, each of which is sleeved on the transmission shaft and coaxially arranged, wherein the input rotor and the output rotor are respectively configured to be connected to an external input end and an external output end;

[0007] The output wheel is provided with a clutch cavity, and the clutch assembly is accommodated in the clutch cavity; the clutch assembly includes a retaining frame, a transmission member, a rolling member, and a V-shaped spring; the retaining frame is provided with an accommodating cavity, and the transmission member is accommodated in the accommodating cavity, and the input wheel is connected to the transmission member through the transmission shaft, a first gap is defined between the inner wall surface of the output wheel and the outer wall surface of the retaining frame, and a second gap is defined between the inner wall surface of the retaining frame and the outer wall surface of the transmission member;

[0008] A through hole is formed on the side wall of the retaining frame, and two abutting portions are formed on the outer wall of the transmission member. The V-shaped spring piece is accommodated in the second gap and located between the two abutting portions. Two ends of the V-shaped spring piece are respectively fixedly connected to two sides of the through hole, so that the inner wall of the V-shaped spring piece, the inner wall of the through hole, and the inner wall of the output wheel form a channel for accommodating the rolling member and for the rolling member to roll.

[0009] Rotating the input wheel drives the transmission member to rotate, causing the abutment, the V-shaped spring, the rolling member, and the output wheel to abut one another. Rotating the output wheel disengages the abutment, the V-shaped spring, the rolling member, and the output wheel. This clutch structure provides stable transmission and has the advantages of being simple and easy to assemble.

[0010] Optionally, in a preferred embodiment of the present invention, the through hole, the rolling element and the V-shaped elastic piece each include a plurality, and the through hole, the rolling element and the V-shaped elastic piece are arranged in a one-to-one correspondence.

[0011] Optionally, in a preferred embodiment of the present invention, the plurality of through holes are arranged at intervals, and the plurality of through holes are evenly distributed along the circumference of the retaining frame.

[0012] Optionally, in a preferred embodiment of the present invention, the transmission member is a circular structure, a groove is provided on the edge of the circular structure, and the inner wall surface of the groove forms the supporting portion.

[0013] Optionally, in a preferred embodiment of the present invention, the transmission member is in a regular polygonal structure, and the edges of the regular polygonal structure form the abutting portion.

[0014] Optionally, in a preferred embodiment of the present invention, the diameter of the rolling element is greater than the thickness of the side wall of the retaining frame, and the diameter of the rolling element is smaller than the sum of the width of the first gap, the thickness of the side wall of the retaining frame and the width of the second gap.

[0015] Optionally, in a preferred embodiment of the present invention, the retaining frame includes a first disc and a second disc coaxially arranged with the transmission shaft as the axis, and the first disc and the second disc are in different axial positions, the diameter of the first disc is larger than the diameter of the second disc, and the accommodating cavity is arranged in the first disc.

[0016] Optionally, in a preferred embodiment of the present invention, a blocking member is further included, and an annular groove is opened on the outer wall surface of the second disc along the circumferential direction, and the blocking member is accommodated in the annular groove.

[0017] Optionally, in a preferred embodiment of the present invention, the blocking member is a rubber ring.

[0018] Another aspect of the present invention provides a control box including the above-mentioned clutch structure. The clutch structure can stably transmit power and has the advantages of simple structure and easy assembly.

[0019] The beneficial effects of the embodiments of the present invention include:

[0020] The clutch structure includes a transmission shaft, and an input wheel, an output wheel, and a clutch assembly, each of which is coaxially mounted on the transmission shaft. The input wheel and the output wheel are respectively connected to an external input end and an external output end. Therefore, the transmission shaft can limit the circumferential and axial movement of the input wheel, the output wheel, and the clutch assembly. The output wheel is provided with a clutch cavity, and the clutch assembly is accommodated within the clutch cavity. The clutch assembly includes a retaining frame, a transmission member, a rolling member, and a V-shaped spring. The retaining frame is provided with a receiving cavity, and the transmission member is accommodated within the receiving cavity. The input wheel is connected to the transmission member via the transmission shaft. A first gap is defined between the inner wall surface of the output wheel and the outer wall surface of the retaining frame, and a second gap is defined between the inner wall surface of the retaining frame and the outer wall surface of the transmission member. In other words, the transmission member, the retaining frame, and the output wheel are sequentially spaced from the inside to the outside in a radial direction. A through hole is formed on the side wall of the retaining frame, and two abutting portions are formed on the outer wall of the transmission member. A V-shaped spring is accommodated in the second gap and is located between the two abutting portions. The two ends of the V-shaped spring are fixedly connected to the two sides of the through hole, so that the inner wall of the V-shaped spring, the inner wall of the through hole, and the inner wall of the output wheel form a channel for accommodating the rolling member and for the rolling member to roll. The channel can limit the movement of the rolling member in the circumferential direction, the radial direction, and the axial direction. Rotating the input wheel can sequentially drive the transmission shaft and the transmission member to rotate, thereby driving the abutting portion, the V-shaped spring, the rolling member, and the output wheel to abut in turn, thereby driving the output wheel to rotate; rotating the output wheel, the V-shaped spring returns to its original state, thereby allowing the abutting portion, the V-shaped spring, the rolling member, and the output wheel to disengage from the abutment, thereby preventing transmission to the input wheel, thereby achieving one-way transmission between the input wheel and the output wheel. In summary, the clutch structure can achieve stable transmission and has the advantages of simple structure and easy assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying any creative work.

[0022] Figure 1 This is a schematic diagram of the clutch structure provided in the first embodiment of the present invention;

[0023] Figure 2 The second structural diagram of the clutch structure provided by the first embodiment of the present invention;

[0024] Figure 3 The third structural diagram of the clutch structure provided by the first embodiment of the present invention;

[0025] Figure 4 for Figure 3 Cross-sectional view at AA in the middle;

[0026] Figure 5 A cross-sectional view of the input wheel of the clutch structure provided by the first embodiment of the present invention when it rotates as a driving wheel;

[0027] Figure 6 A cross-sectional view of the output wheel of the clutch structure provided by the first embodiment of the present invention when it rotates as a driving wheel;

[0028] Figure 7 A cross-sectional view of the input wheel of the clutch structure provided by the second embodiment of the present invention when it rotates as a driving wheel;

[0029] Figure 8 This is a cross-sectional view of the output wheel in the clutch structure provided by the second embodiment of the present invention when it rotates as the driving wheel.

[0030] Icons: 100, 200 - clutch structure; 10 - transmission shaft; 20 - input wheel; 30 - output wheel; 40 - clutch assembly; 41 - retaining frame; 411 - first disc; 412 - second disc; 4121 - through hole; 42 - transmission member; 421 - supporting part; 43 - rolling member; 44 - V-shaped spring piece; 50 - blocking member. DETAILED DESCRIPTION

[0031] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0032] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention as claimed, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort shall fall within the scope of protection of the present invention.

[0033] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0034] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" and the like indicate positions or locations based on the positions shown in the accompanying drawings, or the positions or locations in which the inventive product is typically placed when in use. These terms are intended solely to facilitate the description of the present invention and to simplify the description, and are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. Furthermore, the terms "first," "second," and "third," etc., are used solely to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0035] Furthermore, terms such as "horizontal" and "vertical" do not necessarily mean that a component must be absolutely horizontal or overhanging, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but rather that it can be slightly tilted.

[0036] In the description of the present invention, it should also be noted that, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections, indirect connections through an intermediate medium, or connections within two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on the specific circumstances.

[0037] First embodiment

[0038] Please refer to Figures 1 to 6 This embodiment provides a clutch structure 100, including a transmission shaft 10 and an input wheel 20, an output wheel 30 and a clutch assembly 40, which are respectively sleeved on the transmission shaft 10 and coaxially arranged. The input wheel 20 and the output wheel 30 are respectively used to connect to the external input end and the external output end.

[0039] Among them, a clutch cavity is provided in the output wheel 30, and the clutch assembly 40 is accommodated in the clutch cavity; the clutch assembly 40 includes a retaining frame 41, a transmission member 42, a rolling member 43 and a V-shaped spring 44; a receiving cavity is provided in the retaining frame 41, and the transmission member 42 is accommodated in the receiving cavity, and the input wheel 20 is connected to the transmission member 42 through the transmission shaft 10. There is a first gap between the inner wall surface of the output wheel 30 and the outer wall surface of the retaining frame 41, and there is a second gap between the inner wall surface of the retaining frame 41 and the outer wall surface of the transmission member 42.

[0040] A through hole 4121 is formed on the side wall of the retaining frame 41, and two abutting portions 421 are formed on the outer wall of the transmission member 42. The V-shaped spring piece 44 is accommodated in the second gap and is located between the two abutting portions 421. The two ends of the V-shaped spring piece 44 are respectively fixedly connected to the two sides of the through hole 4121, so that the inner wall of the V-shaped spring piece 44, the inner wall of the through hole 4121 and the inner wall of the output wheel 30 form a channel for accommodating the rolling member 43 and allowing the rolling member 43 to roll.

[0041] Rotating the input wheel 20 drives the transmission member 42 to rotate, causing the abutment 421, V-shaped spring piece 44, rolling element 43, and output wheel 30 to abut against each other. Rotating the output wheel 30 disengages the abutment 421, V-shaped spring piece 44, rolling element 43, and output wheel 30. This clutch structure 100 provides stable transmission and has the advantages of simple structure and ease of assembly.

[0042] It should be noted that, first, Figures 1 to 4 As shown, the input runner 20 and the output runner 30 are respectively sleeved on the transmission shaft 10, and the input runner 20 and the output runner 30 are coaxially arranged, including the case where the input runner 20 is located above the output runner 30, and the case where the input runner 20 is located below the output runner 30. Those skilled in the art should be able to make reasonable selections and designs according to actual needs. The figure is explained as the input runner 20 being located below the output runner 30, and should not be used to limit the axial positional relationship between the input runner 20 and the output runner 30.

[0043] The clutch assembly 40 is also sleeved on the transmission shaft 10 and coaxially arranged with the input pulley 20 (or output pulley 30). Therefore, the transmission shaft 10 can limit the circumferential and axial movement of the input pulley 20, the output pulley 30, and the clutch assembly 40. Unlike the input pulley 20, the clutch assembly 40 is housed within a cylindrical clutch cavity within the output pulley 30. The input pulley 20 and the output pulley 30 are independently arranged, and one-way transmission is achieved through the transmission shaft 10 and the clutch assembly 40.

[0044] Second, if Figures 4 to 6As shown, the clutch assembly 40 includes a retaining frame 41, a transmission member 42, a rolling member 43, and a V-shaped spring 44. A cylindrical accommodating cavity is provided in the retaining frame 41, and the transmission member 42 is accommodated in the accommodating cavity. The transmission member 42 is fixedly connected to the transmission shaft 10, and the input runner 20 is fixedly connected to the transmission shaft 10, so that the input runner 20 is transmission-connected to the transmission member 42 via the transmission shaft 10. A first gap is defined between the inner wall surface of the output runner 30 and the outer wall surface of the retaining frame 41, and a second gap is defined between the inner wall surface of the retaining frame 41 and the outer wall surface of the transmission member 42. That is, the transmission member 42, the retaining frame 41, and the output runner 30 are sequentially spaced from the inside to the outside in the radial direction. The first gap and the second gap may be equal or unequal. Those skilled in the art should be able to make reasonable selections and designs based on actual needs, and no specific limitations are imposed herein.

[0045] Third, if Figures 4 to 6 As shown, a through hole 4121 is formed on the side wall of the retaining frame 41, and two abutting portions 421 are formed on the outer wall of the transmission member 42. The V-shaped spring piece 44 is accommodated in the second gap and located between the two abutting portions 421. The two ends of the V-shaped spring piece 44 are respectively fixedly connected to the two sides of the through hole 4121, and the tip of the V-shaped spring piece 44 faces the side away from the output wheel 30. In particular, since a V-shaped spring piece 44 includes two inclined surfaces on the left and right sides, two abutting portions 421 are formed on the outer wall of the transmission member 42, that is, the number of abutting portions 421 is twice the number of V-shaped spring pieces 44. In addition, the rolling member 43 can be spherical, and the shape of the through hole 4121 can be circular or semicircular. If the through hole 4121 is semicircular, the opening of the semicircular through hole 4121 should face the side close to the inner wall of the output wheel 30. Along the circumferential direction, the two inner wall surfaces of the through hole 4121 can limit the movement of the rolling element 43. Along the radial direction, the inner wall surface of the V-shaped spring piece 44 and the inner wall surface of the output wheel 30 can limit the movement of the rolling element 43. Along the axial direction, the inner wall surface of the through hole 4121 (when the through hole 4121 is circular) or the inner wall surface of the through hole 4121 and the inner wall surface of the output wheel 30 (when the through hole 4121 is semicircular) can limit the movement of the rolling element 43. In other words, the inner wall surface of the V-shaped spring piece 44, the inner wall surface of the through hole 4121 and the inner wall surface of the output wheel 30 form a channel for accommodating the rolling element 43, and the rolling element 43 can roll in the channel.

[0046] Specifically, the transmission process of the input wheel 20 and the output wheel 30 is as follows:

[0047] like Figure 5As shown, when the input wheel 20 is the driving wheel, if the input wheel 20 rotates clockwise, it drives the transmission shaft 10 to rotate in the same direction, and then drives the transmission member 42 to rotate in the same direction. The supporting portion 421 on the left side of the outer wall of the transmission member 42 abuts against the left inclined surface of the V-shaped spring piece 44, causing the V-shaped spring piece 44 to deform slightly and then abut against the rolling member 43. The rolling member 43 continues to rotate and moves in the through hole 4121 on the side wall of the retaining frame 41 toward the output wheel 30 until the rolling member 43 abuts against the inner wall of the output wheel 30. Then, the supporting portion 421 on the left side of the outer wall of the transmission member 42, the left inclined surface of the V-shaped spring piece 44, the rolling member 43 and the inner wall of the output wheel 30 abut as a whole and can rotate clockwise together.

[0048] like Figure 5 As shown, when the input wheel 20 is the driving wheel, if the input wheel 20 rotates counterclockwise, it drives the transmission shaft 10 to rotate in the same direction, and then drives the transmission member 42 to rotate in the same direction. The right side wall of the abutting portion 421 on the right side of the outer wall of the transmission member 42 abuts against the right side inclined surface of the V-shaped spring piece 44, causing the V-shaped spring piece 44 to deform slightly and then abut against the rolling member 43, and continue to rotate to push the rolling member 43 to move closer to the output wheel 30 in the through hole 4121 on the side wall of the retaining frame 41 until the rolling member 43 abuts against the inner wall surface of the output wheel 30, and then the abutting portion 421 on the right side of the outer wall surface of the transmission member 42, the right side inclined surface of the V-shaped spring piece 44, the rolling member 43 and the inner wall surface of the output wheel 30 abut as a whole, and can rotate counterclockwise together.

[0049] like Figure 6 As shown, when the output wheel 30 is the driving wheel, the V-shaped spring piece 44 returns to its original state, and the output wheel 30, the rolling element 43, the V-shaped spring piece 44 and the transmission element 42 cannot abut against each other. If the output wheel 30 rotates clockwise, when the rolling element 43 contacts the output wheel 30, the rolling element 43 rolls freely in the through hole 4121 on the side wall of the retaining frame 41. When the rolling element 43 separates from the output wheel 30, the output wheel 30 is always in a clockwise idling state.

[0050] like Figure 6 As shown, when the output wheel 30 is the driving wheel, the V-shaped spring piece 44 returns to its original state, and the output wheel 30, the rolling element 43, the V-shaped spring piece 44 and the transmission element 42 cannot abut against each other. If the output wheel 30 rotates counterclockwise, when the rolling element 43 contacts the output wheel 30, the rolling element 43 rolls freely in the through hole 4121 on the side wall of the retaining frame 41. When the rolling element 43 separates from the output wheel 30, the output wheel 30 is always in a counterclockwise idling state.

[0051] As described above, the clutch structure 100 includes a transmission shaft 10 and an input wheel 20, an output wheel 30 and a clutch assembly 40, which are respectively sleeved on the transmission shaft 10 and coaxially arranged. The input wheel 20 and the output wheel 30 are respectively used to connect to the external input end and the external output end. Therefore, the transmission shaft 10 can limit the circumferential and axial movement of the input wheel 20, the output wheel 30 and the clutch assembly 40. Among them, a clutch cavity is provided in the output wheel 30, and the clutch assembly 40 is accommodated in the clutch cavity; the clutch assembly 40 includes a retaining frame 41, a transmission member 42, a rolling member 43 and a V-shaped spring 44; a receiving cavity is provided in the retaining frame 41, and the transmission member 42 is accommodated in the receiving cavity, and the input wheel 20 is connected to the transmission member 42 through the transmission shaft 10. There is a first gap between the inner wall surface of the output wheel 30 and the outer wall surface of the retaining frame 41, and there is a second gap between the inner wall surface of the retaining frame 41 and the outer wall surface of the transmission member 42, that is, the transmission member 42, the retaining frame 41 and the output wheel 30 are arranged in sequence from the inside to the outside in the radial direction. A through hole 4121 is provided on the side wall surface of the retaining frame 41, and two abutting portions 421 are formed on the outer wall surface of the transmission member 42. The V-shaped spring piece 44 is accommodated in the second gap and is located between the two abutting portions 421. The two ends of the V-shaped spring piece 44 are fixedly connected to the two sides of the through hole 4121 respectively, so that the inner wall surface of the V-shaped spring piece 44, the inner wall surface of the through hole 4121 and the inner wall surface of the output wheel 30 form a channel for accommodating the rolling member 43 and for the rolling member 43 to roll. The channel can limit the movement of the rolling member 43 in the circumferential direction, radial direction and axial direction. Rotating the input wheel 20 sequentially drives the transmission shaft 10 and the transmission member 42 to rotate, thereby causing the abutment 421, the V-shaped spring piece 44, the rolling member 43, and the output wheel 30 to abut against each other, thereby driving the output wheel 30 to rotate. Rotating the output wheel 30 causes the V-shaped spring piece 44 to return to its original state, thereby disengaging the abutment 421, the V-shaped spring piece 44, the rolling member 43, and the output wheel 30 from abutment, thereby preventing transmission to the input wheel 20. This allows the input wheel 20 and the output wheel 30 to achieve one-way transmission. In summary, the clutch structure 100 can achieve stable transmission and has the advantages of simple structure and easy assembly.

[0052] like Figures 3 to 6 In this embodiment, multiple through-holes 4121, rolling elements 43, and V-shaped spring pieces 44 are provided, and these through-holes 4121, rolling elements 43, and V-shaped spring pieces 44 are provided in a one-to-one correspondence. For example, the number of through-holes 4121, rolling elements 43, and V-shaped spring pieces 44 is four. Of course, in other embodiments, the number of through-holes 4121, rolling elements 43, and V-shaped spring pieces 44 can also be one, two, three, five, six, or the like. Those skilled in the art will be able to make reasonable choices and designs based on actual needs, and no specific limitations are imposed herein.

[0053] like Figure 3 、 Figure 5 and Figure 6 As shown, in this embodiment, the multiple through holes 4121 are arranged at intervals, and the multiple through holes 4121 are evenly distributed along the circumference of the retaining frame 41, so that when the input wheel 20 is the driving wheel, the output wheel 30 can be subjected to a more uniform force along the circumferential direction, thereby making the transmission between the input wheel 20 and the output wheel 30 more stable.

[0054] In this embodiment, the transmission member 42 is a circular structure, the edge of the circular structure is provided with a groove, and the inner wall surface of the groove forms a supporting portion 421. Figure 5 and Figure 6 As shown, in this embodiment, the groove is a V-shaped groove that matches the shape of the V-shaped spring clip 44. As a result, the walls on the left and right sides of the V-shaped groove have a certain inclination angle, which is more suitable for accommodating the V-shaped spring clip 44 compared to grooves of other shapes. In addition, the angle of the V-shaped groove needs to be slightly larger than the angle of the V-shaped spring clip 44 to ensure a certain gap between the V-shaped spring clip 44 and the V-shaped groove. This allows the V-shaped spring clip 44 to return to its original shape when the output wheel 30 is the driving wheel. Of course, in other embodiments, the edge of the circular structure can also extend with a protrusion. In this case, the protrusion forms a support portion 421 facing the side wall of the V-shaped spring clip 44.

[0055] In order to allow the rolling element 43 to be accommodated in the channel and to be able to roll freely in the channel, as shown in FIG. Figure 5 and Figure 6 As shown, in this embodiment, the diameter of the rolling element 43 is greater than the thickness of the side wall of the retaining frame 41, and the diameter of the rolling element 43 is smaller than the sum of the width of the first gap, the thickness of the side wall of the retaining frame 41 and the width of the second gap.

[0056] like Figure 3 and Figure 4 As shown, in this embodiment, the retainer 41 includes a first disc 411 and a second disc 412 coaxially arranged around the transmission shaft 10. The first disc 411 and the second disc 412 are axially positioned at different positions. The diameter of the first disc 411 is larger than the diameter of the second disc 412, and the accommodating cavity is disposed within the first disc 411. The first disc 411 and the second disc 412 can be integrally formed to facilitate assembly of the clutch structure 100.

[0057] like Figures 1 to 4As shown, in this embodiment, the clutch structure 100 further includes a blocking member 50. An annular groove is formed circumferentially on the outer wall surface of the second disk 412. The blocking member 50 is accommodated in the annular groove and is used to abut against the external housing. In this way, the blocking member 50 can provide static friction for the retaining frame 41, thereby causing the retaining frame 41 to be stationary when the V-shaped spring piece 44, the rolling element 43, and the output wheel 30 are initially in contact. This ensures that the V-shaped spring piece 44 undergoes slight deformation when abutted by the transmission element 42, thereby improving the stability of the clutch structure 100. In this embodiment, the blocking member 50 is a rubber ring. Of course, in other embodiments, the blocking member 50 can also be made of other materials, as long as the blocking member 50 can abut against the external housing and provide static friction for the retaining frame 41.

[0058] In this embodiment, both the input and output wheels 20 and 30 are transmission gears. Specifically, the input and output wheels 20 and 30 may each have a plurality of uniformly arranged teeth on their circumferential sidewalls for meshing with mating gears to achieve transmission. Persons skilled in the art will be able to reasonably select and design parameters such as the pitch and module of the teeth based on practical needs. Spur gears, helical gears, or bevel gears may also be used as needed, and no specific limitations are imposed herein.

[0059] Second embodiment

[0060] Please refer to Figure 7 and Figure 8 This embodiment provides a clutch structure 200. Different from the previous embodiment, in this embodiment, the transmission member 42 is a regular polygonal structure, and the edges of the regular polygonal structure form a supporting portion 421, so that the clutch structure 200 can be applied to different usage scenarios, thereby improving the applicability of the clutch structure 200.

[0061] Optionally, a groove may be provided on the edge of the regular polygonal structure, in which case the inner wall of the groove forms a supporting portion 421 , or a protrusion may be extended from the edge of the regular polygonal structure, in which case the protrusion faces the side wall of the V-shaped spring piece 44 to form a supporting portion 421 .

[0062] Third embodiment

[0063] Please refer to Figures 1 to 8This embodiment provides a control box, including the clutch structure 100 / clutch structure 200 described above. The control box provided in this embodiment includes the clutch structure 100 / clutch structure 200 in any of the above embodiments. Therefore, the control box provided in this embodiment includes all the technical features of the clutch structure 100 / clutch structure 200 in any of the above embodiments, thereby possessing all the beneficial effects of the clutch structure 100 / clutch structure 200 in any of the above embodiments. Since the technical features and beneficial effects of the clutch structure 100 / clutch structure 200 in any of the above embodiments have been described in detail in the aforementioned embodiments, they will not be repeated here.

[0064] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

Claims

1. A clutch structure, characterized in that: It includes a transmission shaft, and an input wheel, an output wheel and a clutch assembly respectively sleeved on the transmission shaft and coaxially arranged, wherein the input wheel and the output wheel are respectively used to connect to an external input end and an external output end; The output wheel is provided with a clutch cavity, and the clutch assembly is accommodated in the clutch cavity; the clutch assembly includes a retaining frame, a transmission member, a rolling member, and a V-shaped spring; the retaining frame is provided with an accommodating cavity, and the transmission member is accommodated in the accommodating cavity, and the input wheel is connected to the transmission member through the transmission shaft, a first gap is defined between the inner wall surface of the output wheel and the outer wall surface of the retaining frame, and a second gap is defined between the inner wall surface of the retaining frame and the outer wall surface of the transmission member; A through hole is formed on the side wall of the retaining frame, and two abutting portions are formed on the outer wall of the transmission member. The V-shaped spring piece is accommodated in the second gap and located between the two abutting portions. Two ends of the V-shaped spring piece are respectively fixedly connected to two sides of the through hole, so that the inner wall of the V-shaped spring piece, the inner wall of the through hole, and the inner wall of the output wheel form a channel for accommodating the rolling member and for the rolling member to roll. Rotating the input wheel can drive the transmission member to rotate, so as to drive the abutment portion, the V-shaped spring piece, the rolling member and the output wheel to abut in sequence. Rotating the output wheel causes the abutment portion, the V-shaped spring piece, the rolling member and the output wheel to disengage from abutment respectively.

2. The clutch structure according to claim 1, characterized in that: The through hole, the rolling element and the V-shaped elastic piece each include a plurality of through holes, the rolling element and the V-shaped elastic piece, and the through holes, the rolling element and the V-shaped elastic piece are arranged in a one-to-one correspondence.

3. The clutch structure according to claim 2, characterized in that: The plurality of through holes are arranged at intervals, and the plurality of through holes are evenly distributed along the circumference of the retaining frame.

4. The clutch structure according to claim 1, characterized in that: The transmission member is in a circular structure, a groove is formed on the edge of the circular structure, and the inner wall surface of the groove forms the supporting portion.

5. The clutch structure according to claim 1, characterized in that: The transmission member is in a regular polygonal structure, and the edges of the regular polygonal structure form the supporting portion.

6. The clutch structure according to claim 1, characterized in that: The diameter of the rolling element is greater than the thickness of the side wall of the retaining frame, and the diameter of the rolling element is smaller than the sum of the width of the first gap, the thickness of the side wall of the retaining frame, and the width of the second gap.

7. The clutch structure according to claim 1, characterized in that: The retaining frame includes a first disc and a second disc coaxially arranged with the transmission shaft as the axis, and the first disc and the second disc are at different axial positions. The diameter of the first disc is larger than the diameter of the second disc, and the accommodating cavity is arranged in the first disc.

8. The clutch structure according to claim 7, characterized in that: It also includes a blocking member. An annular groove is opened on the outer wall surface of the second disk along the circumferential direction, and the blocking member is accommodated in the annular groove.

9. The clutch structure according to claim 8, characterized in that: The blocking member is a rubber ring.

10. A control box, characterized in that: The invention comprises the clutch structure described in any one of claims 1 to 9.

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