Camping car and overrunning clutch structure thereof

Abstract

The utility model relates to the field of camping car accessories, in particular to a camping car and an overrunning clutch structure thereof, which comprises an output component and a clutch shell, and the output component is connected with the clutch shell through a clutch; the clutch comprises a guide bracket, a roller frame and a plurality of rollers; the multiple rollers are arranged between the guide support and the clutch shell, and clamping grooves matched with the rollers are formed in the inner wall of the clutch shell. When the guide support rotates, the guide support is matched with the roller frame to push the roller into the clamping groove of the clutch shell, and the guide support drives the roller frame and the clutch shell to rotate synchronously through the roller. When the clutch shell rotates to push the roller out of the clamping groove of the clutch shell, the roller is adsorbed and fixed to the guide support, and the guide support, the roller frame and the clutch shell are disengaged in the circumferential direction. By means of the overrunning clutch structure, linkage and disengagement of the wheels and the power transmission structure can be achieved, and the technical problem that the wheels of the electric trailer cannot rotate in the non-electric-drive state is solved.

Description

Technical Field

[0001] The utility model relates to the field of camper accessories, in particular to a camper and an overrunning clutch structure thereof. Background Art

[0002] As people increasingly prioritize outdoor wellness, global demand for outdoor energy storage, outdoor work, camping, and other outdoor activities is booming. Campers hike or drive to their campsites, often in valleys, lakeside areas, or seaside locations. They build campfires, barbecue, cookouts, and even sing songs—all common camping activities.

[0003] However, during camping, cars often cannot enter the camping site. Therefore, many items, such as tents and food, usually need to be transported to the desired camping location using a cart. A cart can save physical effort and reduce the difficulty of carrying. Traditional camping carts are not powered by electricity and rely entirely on manual towing. This makes it difficult to drag the vehicle when carrying a large load, especially when climbing slopes and crossing grassy areas.

[0004] Currently, some manufacturers have developed campervans with electric power steering, such as the one disclosed in Chinese Utility Model Patent Application No. 202223386885.2. This electric power steering campervan utilizes in-wheel motors in a traditional foldable campervan, saving effort when pushing the campervan. However, this type of electric power steering campervan has a drawback: when the motor loses power, the motor and gear transmission structure lock, causing the tires to lock, making the campervan impossible to push manually. Summary of the Invention

[0005] In order to solve the above problems, the first purpose of the utility model is to provide an overrunning clutch structure, which can realize the linkage and disengagement of the wheels and the power transmission structure, and solve the technical problem that the wheels of the electric trailer cannot rotate when there is no electric drive.

[0006] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solutions:

[0007] The wheel assembly comprises a first gear and a second gear, and the second gear is engaged with the first gear and the second gear is engaged with the first gear, and the second gear is engaged with the first gear and the second gear is engaged with the first gear.

[0008] The present invention adopts the above-mentioned technical solution, which relates to an overrunning clutch structure, in which the output component of the overrunning clutch structure is connected to a power source, such as the output end of a motor or the output end of a transmission, and the clutch housing is connected to the wheel to achieve circumferential linkage, and driving the clutch housing to rotate is driving the wheel to rotate. In this solution, the guide bracket in the clutch can be used to drive the roller to move, including entering the slot, and driving the roller frame and the clutch housing to rotate synchronously when the roller enters the slot. The clutch housing can be used to drive the roller out of the slot. The roller frame is used to cooperate with the guide roller movement when the guide bracket and the clutch housing control the roller to enter and exit the slot. Specifically, when the power source drives the guide bracket to rotate clockwise and counterclockwise, the guide bracket cooperates with the roller frame to push the roller into the slot of the clutch housing to achieve circumferential linkage. In the case of no power drive, pushing the vehicle causes the clutch housing to rotate clockwise or counterclockwise, pushing the roller out of the clutch housing slot, the guide bracket, roller rack and clutch housing circumferentially disengaged, and the wheel can move freely; at this time, the roller is fixed by adsorption by the guide bracket, which ensures that the roller will not fall into the slot. When the roller needs to be ejected, it is necessary to cooperate with the roller rack to drive the roller to move.

[0009] Based on this solution, when the guide bracket and clutch housing are linked, complete power transmission is achieved between the power source, output component, clutch, clutch housing, and wheels, allowing the drive motor to drive the wheels to rotate. However, when the guide bracket, roller frame, and clutch housing are circumferentially disengaged, the wheels are disconnected from the transmission structure, allowing them to rotate freely and allowing external forces to push or pull the vehicle.

[0010] This solution can realize the linkage and disengagement of the wheels and the power transmission structure through the above-mentioned clutch structure, solving the technical problem that the wheels of the electric trailer cannot rotate when there is no electric drive.

[0011] In a specific embodiment, the guide bracket is constructed as a polygonal bracket, including multiple end corners and a cross-section connecting two adjacent end corners. Multiple rollers are arranged in the area between each cross-section of the guide bracket and the inner wall of the clutch housing. When the roller is pushed out of the slot, it is attracted and fixed to the center of the cross-section of the guide bracket. In this solution, the guide bracket is constructed as a polygonal bracket, with the end corner radius larger and the cross-section radius smaller relative to the center of the circle. When the guide bracket rotates, the end corners can be used to push the rollers; after the roller is removed from the slot, it can be attracted and fixed to the center of the cross-section.

[0012] In a feasible solution, the guide bracket uses magnetic attraction to secure the roller. Specifically, the roller is constructed as a magnetic roller or a metal roller that can be magnetically attracted. A magnet is provided in the center of each cross-section of the guide bracket. The magnet on the guide bracket is used to attract and secure the roller to the center of the cross-section of the guide bracket. In this way, the magnet can attract the magnetic roller.

[0013] In one of the embodiments, the guide bracket is sleeved on the end of the output component, and the outer wall of the guide bracket is concave in the middle of the cross-section to form a first groove, and the magnet is embedded in the first groove; in this embodiment, the magnet is embedded in the first groove on the outer wall of the guide bracket, so that the magnet is in contact with the magnetic roller, and the magnetism is stronger.

[0014] In this solution, a second groove corresponding to the first groove is provided on the sidewall of the output component end. A protrusion is formed on the inner wall of the guide bracket at the location corresponding to the first groove. When the guide bracket is sleeved onto the output component end, the protrusion on the guide bracket engages with the second groove on the output component end. This allows the protrusion on the guide bracket to form a first groove on the outer wall for mounting the magnet. It also engages with the second groove, achieving circumferential linkage between the guide bracket and the output component end.

[0015] In another embodiment, the sidewall of the output component end portion is provided with a second groove, located opposite the center of the cross-section, into which the magnet is embedded. The guide bracket is sleeved over the output component end portion and the outer side of the magnet connected thereto. In this embodiment, the magnet is embedded in the second groove in the sidewall of the output component end portion, while the guide bracket sleeves over the outer side. This not only achieves circumferential linkage between the guide bracket and the output component end portion, but also serves to protect the magnet.

[0016] In a specific embodiment, the roller frame has a through-hole formed on its circumferential sidewall, and the roller is movably mounted within the through-hole and is capable of radial displacement relative to the roller frame. The radial displacement referred to herein does not refer solely to radial movement, but rather to movement of the roller causing at least a change in its radial position relative to the center of the circle. When the guide bracket rotates clockwise or counterclockwise, the guide bracket partially pushes the roller outward beyond the outer diameter of the roller bracket and into a retaining groove in the clutch housing. Specifically, the roller is partially positioned outside the outer diameter of the roller bracket, allowing it to retain within the retaining groove. This allows the guide bracket, through the roller, to drive the roller frame and the clutch housing in synchronous rotation. When the clutch housing rotates clockwise or counterclockwise to push the roller out of the retaining groove, the roller moves radially inward relative to the roller frame, remaining at least partially within the outer diameter of the roller bracket. The guide bracket is circumferentially disengaged from the clutch housing, thereby preventing the roller from moving when the wheel rotates the clutch housing.

[0017] In a further embodiment, the upper and / or lower walls of the through-hole of the roller holder are each formed with a guide groove that is radially deep in the middle and shallow at the ends. The shafts on the upper and / or lower sides of the rollers are positioned within the guide grooves. When the roller is in the middle of the guide groove, the radial depth of the guide groove in the middle allows the outer edge of the roller to be completely contained within the outer diameter of the roller holder, and the guide holder is circumferentially disengaged from the clutch housing. However, when the roller is at the ends of the guide groove, the radial shallowness of the guide groove at the ends causes the roller to be pushed out until it partially pushes out of the outer diameter of the roller holder and engages the retaining groove of the clutch housing. The guide holder, roller holder, and clutch housing are then linked together through the rollers.

[0018] In a further embodiment, the output component, roller frame, and clutch housing are all rotatably mounted on a fixed shaft, and the roller frame is also provided with a resistance component for increasing its rotational resistance. In this embodiment, after the vehicle is manually propelled into use, the roller is located in the middle of the guide groove, and the outer edge of the roller is completely contained within the outer diameter of the roller frame. During the power input start-up phase, if the roller frame rotates synchronously with the guide bracket due to friction, the roller will also rotate, making it impossible to push the roller into the slot. To avoid this, the guide bracket is required to rotate relative to the roller frame during the power input start-up phase. Therefore, a resistance component is used to increase the rotational resistance of the roller frame. In this way, the guide bracket can push the roller from the middle of the guide groove to the end of the guide groove and engage it in the slot.

[0019] The second object of the present invention is to provide a camper, characterized by comprising the above-mentioned overrunning clutch structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a front structural diagram of the overrunning clutch structure involved in the utility model.

[0021] Figure 2This is a schematic diagram of the back structure of the overrunning clutch structure involved in the present utility model.

[0022] Figure 3 This is an exploded diagram of the first type of overtaking clutch structure.

[0023] Figure 4 This is an exploded diagram of the second overrunning clutch structure.

[0024] Figure 5 Schematic diagram of the roller being pushed out (clutch housing omitted).

[0025] Figure 6 This is a schematic diagram of the roller being pushed into storage (the clutch housing is omitted).

[0026] Figure 7 Schematic diagram of the roller rack structure.

[0027] Figure 8 This is a structural diagram of the rollers housed in the roller rack. DETAILED DESCRIPTION

[0028] The following describes in detail embodiments of the present invention, 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 explain the present invention, and should not be construed as limiting the present invention.

[0029] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "clockwise", "counterclockwise" and the like to indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0030] 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 specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, unless otherwise specified, "plurality" means two or more, unless expressly limited otherwise.

[0031] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0032] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0033] Example 1:

[0034] like Figures 1 to 8 As shown, this embodiment relates to an overrunning clutch structure, comprising an output component 1 for connecting to a power source, and a clutch housing 2 for connecting to a wheel. The output component 1 is an output shaft, and the output component 1 and clutch housing 2 are connected via a clutch 3. In this overrunning clutch structure, the output component 1 is connected to the power source, such as the output terminal of a motor or a transmission, while the clutch housing 2 is connected to the wheel, achieving circumferential linkage. Rotating the clutch housing 2 drives the wheel.

[0035] In a specific embodiment, the clutch 3 includes a guide bracket 31, a roller rack 32, and a plurality of rollers 33. The guide bracket 31 is connected to the output component 1 and is circumferentially linked thereto. The guide bracket 31 is located inside the roller rack 32, and the guide bracket 31 is located inside the clutch housing 2. The plurality of rollers 33 are placed between the guide bracket 31 and the clutch housing 2. The inner wall of the clutch housing 2 is provided with a slot 21 adapted for the rollers 33. When the guide bracket 31 rotates clockwise and counterclockwise, it cooperates with the roller rack 32 to push the rollers 33 into the slots 21 of the clutch housing 2. The guide bracket 31 drives the roller rack 32 and the clutch housing 2 to rotate synchronously through the rollers 33. When the clutch housing 2 rotates clockwise and counterclockwise to push the rollers 33 out of the slots 21 of the clutch housing 2, the rollers 33 are adsorbed and fixed to the guide bracket 31, and the guide bracket 31 and the roller rack 32 are circumferentially separated from the clutch housing 2. In this solution, the guide bracket 31 in the clutch 3 is used to drive the roller 33 into the slot 21 and, when the roller 33 is in the slot 21, to drive the roller frame 32 and the clutch housing 2 to rotate synchronously. The clutch housing 2 is used to drive the roller 33 out of the slot 21. The roller frame 32 cooperates with the guide bracket 31 and the clutch housing 2 to guide the roller 33 in and out of the slot 21. Specifically, when the power source drives the guide bracket 31 to rotate clockwise or counterclockwise, the guide bracket 31 cooperates with the roller frame 32 to push the roller 33 into the slot 21 of the clutch housing 2, achieving circumferential linkage. In the absence of power, pushing the vehicle causes the clutch housing 2 to rotate clockwise or counterclockwise, pushing the roller 33 out of the slot 21 of the clutch housing 2. The guide bracket 31 and roller frame 32 then circumferentially disengage from the clutch housing 2, allowing the wheels to move freely. At this time, the roller 33 is fixed by adsorption by the guide bracket 31, so as to ensure that the roller 33 does not fall into the slot 21. When the roller 33 needs to be ejected, the roller bracket 32 needs to be cooperated to drive the roller 33 to move.

[0036] Based on this solution, when the guide bracket 31 is in linkage with the clutch housing 2, complete power transmission is achieved between the power source, output component 1, clutch 3, clutch housing 2, and wheels, allowing the drive motor to rotate the wheels. However, when the guide bracket 31, roller frame 32, and clutch housing 2 are circumferentially disengaged, the wheels are disconnected from the transmission structure, allowing them to rotate freely and allowing external forces to push or pull the vehicle. This solution, through the aforementioned clutch structure, enables both linkage and disengagement of the wheels from the power transmission structure, resolving the technical issue of electric trailer wheels being unable to rotate when not powered by electric drive.

[0037] like Figure 3 and 4In the illustrated embodiment, the guide bracket 31 is constructed as a polygonal bracket, comprising multiple corners 311 and cross-sections 312 connecting two adjacent corners 311. The illustrated embodiment shows a triangular bracket with three cross-sections 312. Multiple rollers 33 are arranged in the area between each cross-section 312 of the guide bracket 31 and the inner wall of the clutch housing 2. When the rollers 33 are pushed out of the slot 21, they are attracted and fixed to the center of the cross-section 312 of the guide bracket 31. In this embodiment, the guide bracket 31 is constructed as a polygonal bracket, with the corners 311 having a larger radius and the cross-sections 312 having a smaller radius relative to the center of the circle. When the guide bracket 31 rotates, the corners 311 can propel the rollers 33. After the rollers 33 are removed from the slot 21, they can be attracted and fixed to the center of the cross-section 312. This area is spacious enough to fully accommodate the rollers 33.

[0038] In an operative embodiment, the guide bracket 31 secures the roller 33 to the guide bracket 31 using magnetic attraction. Specifically, the roller 33 is constructed as a magnetic roller or metal roller capable of magnetic attraction. A magnet 34 is provided in the center of each cut surface 312 of the guide bracket 31. The magnet 34 on the guide bracket 31 is used to secure the roller 33 to the center of the cut surface 312 of the guide bracket 31. In this manner, the magnet 34 can attract the magnetic roller.

[0039] exist Figure 3 In one embodiment shown, the guide bracket 31 is sleeved onto the end of the output component 1. The outer wall of the guide bracket 31 has a first recessed groove 313 formed in the middle of the cut surface 312. The magnet 34 is embedded in the first recessed groove 313. In this embodiment, the magnet 34 is embedded in the first recessed groove 313 on the outer wall of the guide bracket 31. This ensures contact and adhesion between the magnet 34 and the magnetic roller, enhancing the magnetic properties. In this embodiment, a second recessed groove 11 corresponding to the first recessed groove 313 is formed on the sidewall of the end of the output component 1. A protrusion 314 is formed on the inner wall of the guide bracket 31 at the position corresponding to the first recessed groove 313. When the guide bracket 31 is sleeved onto the end of the output component 1, the protrusion 314 on the guide bracket 31 is embedded in the second recessed groove 11 on the end of the output component 1. Thus, the protrusion 314 on the guide bracket 31 forms the first recessed groove 313 on the outer wall for receiving the magnet 34. It also allows it to be embedded in the second recessed groove 11, achieving circumferential linkage between the guide bracket 31 and the end of the output component 1.

[0040] exist Figure 4In another embodiment shown, a second groove 11 is provided on the sidewall of the end of the output component 1, corresponding to the center of the cut surface 312, and the magnet 34 is embedded in the second groove 11. The guide bracket 31 is sleeved around the end of the output component 1 and the outer side of the magnet 34 connected thereto. In this embodiment, the magnet 34 is embedded in the second groove 11 on the sidewall of the end of the output component 1, while the guide bracket 31 sleeves on the outer side. This not only achieves circumferential linkage between the guide bracket 31 and the end of the output component 1, but also protects the magnet 34.

[0041] Figure 5-8 As shown, a through hole 321 is formed on the circumferential side wall of the roller frame 32, and the roller 33 is movably mounted in the through hole 321 and can produce radial displacement relative to the roller frame 32. The radial displacement referred to here does not mean only radial movement, but rather that the movement of the roller 33 at least causes a change in its radial position relative to the center of the circle. When the guide bracket 31 rotates clockwise and counterclockwise, the guide bracket 31 pushes the roller 33 partially outward from the outer diameter of the roller frame 32 and engages the groove 21 of the clutch housing 2. This means that a portion of the roller 33 is located outside the outer diameter of the roller frame 32, so that it can engage with the groove 21, allowing the guide bracket 31 to drive the roller frame 32 and the clutch housing 2 to rotate synchronously through the roller 33. When the clutch housing 2 rotates clockwise and counterclockwise to push the roller 33 out of the slot 21 of the clutch housing 2, the roller 33 moves radially inward relative to the roller frame 32. The roller 33 is at least partially contained within the outer diameter of the roller frame 32, and the guide frame 31 is circumferentially disengaged from the clutch housing 2. In this way, when the wheel drives the clutch housing 2 to rotate, the roller 33 will not be driven to move. In a further embodiment, the upper and / or lower walls of the through hole 321 of the roller frame 32 are constructed with guide grooves 322 that are radially deep in the middle and radially shallow at the ends. The shaft 331 on the upper and / or lower sides of the roller 33 is arranged in the guide grooves 322. As shown in the figure, the guide grooves 322 are provided on both the upper and lower walls of the through hole 321, and the shaft 331 is provided on the upper and lower sides of the roller 33. When the roller 33 is in the middle of the guide groove 322, the guide groove 322 is sufficiently deep in the middle, so the outer edge of the roller 33 is completely contained within the outer diameter of the roller holder 32. The guide bracket 31 is circumferentially disengaged from the clutch housing 2. Furthermore, since the roller 33 is within the outer diameter of the roller holder 32, the possibility of interference during circumferential rotation is reduced. When the roller 33 is at either end of the guide groove 322, the guide groove 322 is radially shallower at both ends, and the roller 33 is pushed out until it partially pushes out of the outer diameter of the roller holder 32 and engages the retaining groove 21 of the clutch housing 2. The guide bracket 31, roller holder 32, and clutch housing 2 are then linked together through the roller 33.

[0042] like Figure 3 and 4As shown, the output component 1, roller frame 32, and clutch housing 2 are all rotatably mounted on a fixed shaft 4. The clutch housing 2 is rotatably mounted on the fixed shaft 4 using a bearing 5. The roller frame 32 is also equipped with a resistance component to increase its rotational resistance. In this embodiment, after the vehicle is manually pushed, the roller 33 is located in the middle of the guide groove 322, with the outer edge of the roller 33 completely retracted within the outer diameter of the roller frame 32. During the power input start-up phase, if the roller frame 32 rotates synchronously with the guide bracket 31 due to friction, the roller 33 will also rotate, preventing the roller 33 from being pushed into the retaining groove 21. To avoid this situation, the guide bracket 31 is required to rotate relative to the roller frame 32 during the power input start-up phase. Therefore, a resistance component is used to increase the rotational resistance of the roller frame 32. This allows the guide bracket 31 to push the roller 33 from the middle of the guide groove 322 to the end of the guide groove 322, where it can be locked into the retaining groove 21.

[0043] The resistance components can be specifically designed as follows: 1. Figure 3 and 4 The retaining spring 6 shown is used to increase the resistance of the roller frame 32 to the rotation relative to the fixed shaft 4; 2. The roller frame is fixedly connected to a rubber component, and the rubber component is frictionally engaged with the fixed shaft; 3. A threaded extrusion part is provided on the roller frame, and the threaded extrusion part is frictionally engaged with the fixed shaft; 4. Other structures that increase friction.

[0044] In summary, the working principle of the above-mentioned overrunning clutch structure is as follows:

[0045] 1. In power drive mode: the power source [motor] drives the output component 1 to rotate, and the output component 1 drives the guide bracket 31 to rotate. The resistance component 6 increases the rotation resistance of the roller frame 32. Therefore, the end angle 311 of the guide bracket 31 pushes the roller 33 from the middle of the guide groove 322 of the roller frame 32 to the end of the guide groove 322. The roller 33 is partially pushed out of the outer diameter of the roller frame 32 and is clamped into the clamping groove 21 of the clutch housing 2. The guide bracket 31 and the roller frame 32 are linked to the clutch housing 2 through the roller 33.

[0046] 2. In manual cart mode: the wheel drives the clutch housing 2 to rotate, the clutch housing 2 rotates in the opposite direction relative to the roller frame 32 and pushes the roller 33. The roller 33 is pushed from the end of the guide groove 322 to the middle of the guide groove 322, and at the same time, it also pushes the end corner 311 of the guide bracket 31 to rotate in the opposite direction by a certain angle. Then, the magnet 34 in the middle of the cross-section 312 of the guide bracket 31 adsorbs and fixes the roller 33. The guide bracket 31 and the roller frame 32 are circumferentially separated from the clutch housing 2, and the wheel can move freely.

[0047] Example 2:

[0048] This embodiment provides a camper, comprising the overrunning clutch structure described in Embodiment 1.

[0049] In the description of this specification, the reference terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention.

[0050] Furthermore, the specific features, structures, materials, or characteristics described herein may be combined in any suitable manner in any one or more embodiments or examples.

[0051] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are illustrative and cannot be understood as limitations on the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention without departing from the principles and purpose of the present invention.

Claims

1. An overrunning clutch structure, comprising an output component (1) for connecting to a power source, and a clutch housing (2) for connecting to a wheel; the output component (1) and the clutch housing (2) are connected via a clutch (3); and characterized in that: The clutch (3) comprises a guide bracket (31), a roller rack (32) and a plurality of rollers (33); the guide bracket (31) is connected to the output component (1) and is circumferentially linked thereto, the guide bracket (31) is located inside the roller rack (32), and the guide bracket (31) is located inside the clutch housing (2); the plurality of rollers (33) are placed between the guide bracket (31) and the clutch housing (2), and a slot (21) adapted to the rollers (33) is provided on the inner wall of the clutch housing (2); when the guide bracket (31) is clockwise When the guide bracket (31) rotates clockwise and counterclockwise, the roller bracket (32) pushes the roller (33) into the slot (21) of the clutch housing (2), and the guide bracket (31) drives the roller bracket (32) and the clutch housing (2) to rotate synchronously through the roller (33); when the clutch housing (2) rotates clockwise and counterclockwise to push the roller (33) out of the slot (21) of the clutch housing (2), the roller (33) is adsorbed and fixed on the guide bracket (31), and the guide bracket (31), the roller bracket (32) and the clutch housing (2) are circumferentially separated.

2. The overrunning clutch structure according to claim 1, characterized in that: The guide bracket (31) is constructed as a polygonal bracket, and includes a plurality of end corners (311) and a cross-section (312) connecting two adjacent end corners (311); a plurality of rollers (33) are respectively arranged in the area between each cross-section (312) of the guide bracket (31) and the inner wall of the clutch housing (2); when the roller (33) is pushed out of the slot (21), the roller (33) is adsorbed and fixed in the middle of the cross-section (312) of the guide bracket (31).

3. The overrunning clutch structure according to claim 2, characterized in that: The roller (33) is constructed as a magnetic roller or a metal roller capable of being magnetically adsorbed, and a magnet (34) is provided in the middle of each section (312) of the guide bracket (31); the magnet (34) on the guide bracket (31) is used to adsorb and fix the roller (33) in the middle of the section (312) of the guide bracket (31).

4. The overrunning clutch structure according to claim 3, characterized in that: The guide bracket (31) is sleeved on the end of the output component (1); the outer wall of the guide bracket (31) is concave in the middle of the cut surface (312) to form a first groove (313); the magnet (34) is embedded in the first groove (313).

5. The overrunning clutch structure according to claim 4, characterized in that: A second groove (11) corresponding to the first groove (313) is provided on the side wall of the end of the output component (1), and a protrusion (314) is formed on the inner wall surface of the guide bracket (31) at a position corresponding to the first groove (313); when the guide bracket (31) is sleeved on the end of the output component (1), the protrusion (314) on the guide bracket (31) is embedded in the second groove (11) at the end of the output component (1).

6. The overrunning clutch structure according to claim 3, characterized in that: A second groove (11) is provided on the side wall of the end of the output component (1) at a position relative to the middle of the cut surface (312), and the magnet (34) is embedded in the second groove (11); the guide bracket (31) is sleeved on the end of the output component (1) and the outer side of the magnet (34) connected thereto.

7. The overrunning clutch structure according to claim 2, characterized in that: A through hole (321) is constructed on the circumferential side wall of the roller frame (32), and the roller (33) is movably embedded in the through hole (321) and can generate radial displacement relative to the roller frame (32); when the guide bracket (31) rotates clockwise and counterclockwise, the guide bracket (31) pushes the roller (33) partially outward from the outer diameter of the roller frame (32) and snaps into the slot (21) of the clutch housing (2), and the guide bracket (31) drives the roller frame (32) and the clutch housing (2) to rotate synchronously through the roller (33); when the clutch housing (2) rotates clockwise and counterclockwise to push the roller (33) out of the slot (21) of the clutch housing (2), the roller (33) moves radially inward relative to the roller frame (32), and the roller (33) is at least partially received in the outer diameter of the roller frame (32), and the guide bracket (31) is circumferentially separated from the clutch housing (2).

8. The overrunning clutch structure according to claim 7, characterized in that: A guide groove (322) having a radially deep middle portion and radially shallow ends is constructed on the upper wall and / or lower wall of the through hole (321) of the roller frame (32); the shaft (331) on the upper side and / or lower side of the roller (33) is arranged in the guide groove (322); when the roller (33) is in the middle of the guide groove (322), the outer edge of the roller (33) is completely received in the outer diameter of the roller frame (32); when the roller (33) is at both ends of the guide groove (322), the roller (33) is partially pushed out of the outer diameter of the roller frame (32) and is engaged in the slot (21) of the clutch housing (2).

9. The overrunning clutch structure according to claim 7, characterized in that: The output component (1), roller frame (32) and clutch housing (2) are all rotatably arranged on a fixed shaft (4), and a resistance component for increasing its rotation resistance is also arranged on the roller frame (32).

10. A camper, characterized in that: The invention comprises the overrunning clutch structure according to any one of claims 1 to 9.

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