Recreational vehicle roof bed structure
Patent Information
- Application Number
- CN202522143393.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-10-10
- Publication Date
- 2026-09-25
- Estimated Expiration
- 2035-10-10
AI Technical Summary
[0005]为解决现有技术房车升顶床存在的需要将睡具搬进搬出、不能享受车体内供暖或空调和空气流动较差等问题，本实用新型提出一种房车升顶床结构
[0015]本实用新型房车升顶床结构的有益技术效果是不需将睡具搬进搬出，篷布内空间与车体内空间融为一体，有效提高了篷布内的空气调节性和空气流动性。
Smart Images
Figure CN224796868U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a technology for a pop-up bed in a motorhome, and more particularly to a structure for a pop-up bed in a motorhome. Background Technology
[0002] To balance comfort and maneuverability, a type of motorhome with a rising roof has emerged: the pop-top motorhome. Typically, a pop-top motorhome consists of a rectangular opening cut into the roof of a van or light commercial vehicle. A rigid frame (the top frame) is installed through this opening, and a canopy is laid around the top frame. A pop-top, corresponding in size to the vehicle's roof, is located on top of the canopy. Retractable supports are located at the front and rear ends of the canopy. When the supports are raised, they push the pop-top upwards, simultaneously unfolding the canopy and creating a shared space between the canopy and the vehicle's interior, effectively increasing the interior height and allowing people to stand and walk comfortably inside. When the supports are retracted, the pop-top lowers to the top of the vehicle, significantly reducing the vehicle's height (usually below 2.2 meters), allowing it to fit into most underground parking garages (see appendix). Figure 1 In the diagram, A represents the vehicle body, B represents the pop-up roof, and C represents the tarpaulin.
[0003] To make full use of the interior space, the pop-top RV also has a bed (i.e., pop-top bed) inside the canopy after the top is raised. The pop-top bed is composed of three panels, two of which are hinged together to form a bent panel, with one end of the bent panel hinged to the front of the top frame, and the other is a flip panel, which is hinged to the rear of the top frame. When the RV roof is raised, to increase the interior height, the folding and flip-up panels need to be lifted upwards (the folding panels are supported by cylinders to prevent them from lowering themselves after being raised), thus increasing the interior height. When sleeping is needed, the folding panels are pulled down to support the roof frame surface. At this time, the flip-up panels flip up, creating a passage for sleeping equipment and people to enter and exit the space inside the tent. After the sleeping equipment and people are inside the tent, the flip-up panels are flattened, and the folding and flip-up panels form the pop-up bed. When the pop-up needs to be lowered, the sleeping equipment needs to be removed from the passage, and the flip-up panels are flattened. The pop-up is lowered, and the tent is wrapped in the space formed by the pop-up, folding, and flip-up panels. To ensure that the overall vehicle height does not exceed 2.2m, the height of the protruding part of the pop-up is limited, so that the space formed by the pop-up, folding, and flip-up panels can only accommodate the tent, not sleeping equipment. In addition, RVs are usually equipped with diesel heating or air conditioning. Because the pop-up bed, formed by folding and flipping panels, completely covers the opening in the roof frame, air cannot circulate naturally inside the canopy and the vehicle body. People resting on the pop-up bed not only cannot enjoy the heating or air conditioning inside the vehicle, but air circulation is also severely restricted (see appendix). Figure 2 , 34. In the diagram, A is the vehicle body, B is the pop-up roof, C is the tarpaulin, D is the top frame, E is the bending plate, and F is the flip-up plate.
[0004] Clearly, existing RV pop-top beds have problems such as the need to move sleeping bedding in and out, the inability to enjoy heating or air conditioning inside the vehicle, and poor air circulation. Summary of the Invention
[0005] To address the problems of existing RV pop-top beds, such as the need to move sleeping bedding in and out, lack of access to vehicle heating or air conditioning, and poor air circulation, this utility model proposes an RV pop-top bed structure.
[0006] This utility model of a RV pop-up bed structure includes: a hammock and hooks; the hammock includes: a bed frame, a fixing plate, a flipping plate, and suspension ropes; the bed frame is a rectangular rigid frame, and its overall size is smaller than the through hole in the top frame; the fixing plate is a rectangular plate fixed to the front side of the bed frame; the flipping plate is hinged to the rear side of the bed frame; the suspension ropes are liftable ropes and there are four of them, which are respectively fixed between the four corners of the bed frame and the corresponding positions on the inner side of the pop-up, that is, the hammock is suspended below the pop-up; the hooks are L-shaped structures and there are multiple of them, which are rotatably fixed to the bottom of the four sides of the inner side of the top frame through the end of the hook handle, and the hook body extends into the inner side of the top frame; when the hook is in the vertical position, the hook body is below the top frame and is spaced a set distance from the lower edge of the top frame.
[0007] Furthermore, the hook is a double L-shaped hook, that is, after the hook body is bent at a right angle, it is bent at a right angle to the side at the end of the hook body, and the hook body can rotate relative to the hook handle; there are multiple double L-shaped hooks, which are fixed to the four sides of the outer side of the bed frame by the end of the hook handle, and the hook body extends to the outer side of the bed frame; at the same time, an inner step is provided at the bottom of the inner side of the top frame; when the hook is in the vertical position and when the hammock is lowered to the set position, the bottom of the hook body is hooked on the surface of the top frame, and the bed frame and the bottom edge of the top frame are separated by a set distance; when the hook is in the horizontal position and the hook body rotates relative to the hook handle so that the second right angle bend is at the top, and when the hammock is lowered to the set position, the bottom of the second right angle bend is hooked on the inner step on the inner side of the top frame.
[0008] Furthermore, the hook is a telescopic hook, meaning the hook handle is telescopic; there are multiple telescopic hooks, fixed at intervals inside the four sides of the top frame; and the hook body of the telescopic hook extends inward to the top frame; when the telescopic hook is in the retracted position, the bottom surface of the hook body is flush with the bottom surface of the top frame; when the telescopic hook is in the extended position, the hook body is below the top frame and at a set distance from the bottom edge of the top frame; and the size of the bed frame matches the internal space of the top frame.
[0009] Furthermore, the telescopic hooks are multiple and spaced apart on the four sides of the bed frame; and the hooks of the telescopic hooks extend towards the top frame side; when the telescopic hooks are in the retracted position and the hooks are hooked on the surface of the top frame, the bottom surface of the bed frame is flush with the bottom surface of the top frame; when the telescopic hooks are in the extended position and the hooks are hooked on the surface of the top frame, the bottom edges of the bed frame and the top frame are spaced apart by a set distance.
[0010] Furthermore, the telescopic hook is a multi-layered telescopic hook structure, that is, the inner hook shank can extend relative to the outer hook shank, and the hook shank is multi-layered.
[0011] Furthermore, the liftable hoisting rope is driven by a winch structure, which consists of four winches: a wheel base, a wheel, a motor base, and a motor I. The wheel bases are respectively fixed at the four corners of the bed frame or at positions corresponding to the four corners of the bed frame on the inner side of the lifting top. The wheel is mounted on the wheel base, and the hoisting rope is wound around the wheel. The motor base is fixed to the side of the wheel base. The motor I is fixed on the motor base, and the shaft of the motor I is coaxially connected to the wheel.
[0012] Furthermore, the hook or double L-shaped hook is linked by a linkage mechanism, which includes: a fixed rod, a pull rod, a connecting plate, a turntable, and a motor II; and the hook shank of the hook or double L-shaped hook extends upward and is provided with a pull rod hole; the fixed rod is provided with a hinge hole, and the pull rod is provided with a pull hole; there are multiple hooks or double L-shaped hooks, and they are respectively hinged to the hinge holes on the fixed rod; the pull rods are respectively hinged to the pull rod holes of multiple hooks or double L-shaped hooks; one end of the connecting plate is hinged to the end of the pull rod, and the other end is hinged to the eccentric shaft on the turntable; the motor II is fixed to the side of the turntable, and the rotating shaft of the motor II is coaxially connected to the turntable.
[0013] Furthermore, the telescopic hook is driven by a rack and pinion mechanism, which includes a rack, a gear, and a motor III. The rack is located on the side of the hook shank of the telescopic hook. The gear is located beside the rack and meshes with it. The motor III is fixed beside the gear, and the shaft of the motor III is coaxially connected to the gear.
[0014] Furthermore, when the hook or double L-shaped hook is in the horizontal position, or when the telescopic hook is in the retracted position, a pin locking mechanism is provided; the pin locking mechanism includes: a pin hole, a pin, and a spring; the pin hole is located on the inner side of the hook, double L-shaped hook, or telescopic hook and is a blind hole; the pin is located in the pin hole corresponding to the pin hole when the hook, double L-shaped hook, or telescopic hook is in the horizontal or retracted position; the spring is fitted onto the rear end of the pin.
[0015] The beneficial technical effect of this utility model of RV pop-top bed structure is that it eliminates the need to move sleeping equipment in and out, and the space inside the tent is integrated with the space inside the vehicle, effectively improving the air conditioning and air flow inside the tent. Attached Figure Description
[0016] Appendix Figure 1 It is a 3D diagram of the RV before and after the roof is raised;
[0017] Appendix Figure 2 This is a 3D schematic diagram of a pop-up bed in a motorhome with existing technology in a raised position;
[0018] Appendix Figure 3 This is a 3D schematic diagram of the pop-up bed in an existing RV in the entry / exit position.
[0019] Appendix Figure 4 This is a 3D schematic diagram of a pop-up bed in a RV in a sleeping position, based on existing technology.
[0020] Appendix Figure 5 This is a three-dimensional schematic diagram of the pop-up bed structure for RVs of this utility model;
[0021] Appendix Figure 6 This is a three-dimensional schematic diagram of the bed frame of this utility model;
[0022] Appendix Figure 7 This is a three-dimensional schematic diagram of the pop-up bed in the RV in a sleeping state.
[0023] Appendix Figure 8 This is a three-dimensional schematic diagram of the hook of this utility model in a horizontal position;
[0024] Appendix Figure 9 This is a three-dimensional schematic diagram of the pop-up roof bed of the RV in the closed state.
[0025] Appendix Figure 10 This is a three-dimensional schematic diagram of the double L-shaped hooks for the pop-up bed in a motorhome, which is based on this utility model.
[0026] Appendix Figure 11 This is a three-dimensional schematic diagram of the double L-shaped hook of this utility model in a horizontal position;
[0027] Appendix Figure 12 This is a three-dimensional schematic diagram of the telescopic hook of this utility model in the extended position;
[0028] Appendix Figure 13 This is a three-dimensional schematic diagram of the telescopic hook of this utility model in the retracted position;
[0029] Appendix Figure 14 This is a three-dimensional schematic diagram of another embodiment of the present invention with the telescopic hook in the retracted position;
[0030] Appendix Figure 15This is a three-dimensional schematic diagram of another embodiment of the present invention showing the telescopic hook in the extended position;
[0031] Appendix Figure 16 This is a three-dimensional schematic diagram of the winch structure of this utility model;
[0032] Appendix Figure 17 This is a three-dimensional schematic diagram of the linkage mechanism of this utility model;
[0033] Appendix Figure 18 This is a three-dimensional schematic diagram of the rack and pinion mechanism of this utility model;
[0034] Appendix Figure 19 This is a three-dimensional schematic diagram of the pin locking mechanism of this utility model.
[0035] In the diagram, A is the vehicle body, B is the pop-up roof, C is the tarpaulin, D is the top frame, E is the bending plate, and F is the flipping plate; 1 is the hammock, 1-1 is the bed frame, 1-2 is the fixing plate, 1-3 is the flipping plate, and 1-4 is the hoisting rope; 2 is the hook; 3 is the double L-shaped hook; 4 is the inner step; 5 is the telescopic hook; 6-1 is the wheel seat, 6-2 is the wheel, 6-3 is the motor seat, and 6-4 is the motor I; 7-1 is the fixing rod, 7-2 is the pull rod, 7-3 is the connecting plate, and 7-4 is the turntable; 8-1 is the rack, 8-2 is the gear, and 8-3 is the motor III; 9-1 is the pin hole, 9-2 is the pin, and 9-3 is the spring.
[0036] The present invention, specifically the RV pop-top bed structure, will be further described below with reference to the accompanying drawings and specific embodiments. Detailed Implementation
[0037] See appendix Figures 4-9As shown in the figure, the RV pop-top bed structure of this utility model includes: a hammock 1 and hooks 2; the hammock includes: a bed frame 1-1, a fixing plate 1-2, a flipping plate 1-3, and suspension ropes 1-4; the bed frame is a rectangular rigid frame, and its overall size is smaller than the through hole in the top frame; the fixing plate is a rectangular plate fixed to the front side of the bed frame; the flipping plate is hinged to the rear side of the bed frame; the suspension ropes are liftable ropes, and there are four of them, which are respectively fixed between the four corners of the bed frame and the corresponding positions on the inner side of the pop-top, that is, the hammock is suspended below the pop-top; the hooks are L-shaped structures and there are multiple of them, which are rotatably fixed to the bottom of the four sides of the inner side of the top frame through the end of the hook handle, and the hook body extends into the inner side of the top frame; when the hook is in the vertical position, the hook body is below the top frame and is spaced a set distance from the lower edge of the top frame. The RV pop-top bed structure of this utility model uses suspension ropes and hooks to allow the bed to be in different positions, thereby realizing different functions. When the RV is parked, raise the pop-up roof and use ropes to move the bed upwards a set distance, allowing you to walk or stand upright inside. When you need to sleep, turn the hook to a vertical position and use the ropes to move the bed downwards until the bed frame contacts the hook's front. Because there is a set distance between the hook and the bottom edge of the roof frame, the bed, when placed on the hook, forms a gap of a set width, integrating the space inside the tarpaulin with the interior space of the RV. This effectively improves air conditioning and airflow within the tarpaulin (see appendix). Figure 7 When movement is required, first move the bed frame upwards, rotate the hook to bring it to a horizontal position, then move the bed frame downwards until the bed frame contacts the side of the hook. At this point, a set distance is maintained between the bed frame and the top edge of the top frame, so the sleeping bedding can be laid flat on the pop-up bed without affecting the pop-up bed's descent to the set position, avoiding the need to move the sleeping bedding in and out (see appendix). Figure 9 ).
[0038] See appendix Figure 10 , 11 As one of the preferred technical solutions, the hook is a double L-shaped hook 3, that is, after a right-angle bend at the hook body, it is then bent to a right angle to the side at the end of the hook body, and the hook body can rotate relative to the hook handle; there are multiple double L-shaped hooks, which are rotatably fixed to the four sides of the outer side of the bed frame through the end of the hook handle, and the hook body extends outward from the bed frame; at the same time, an inner step 4 is provided at the bottom of the inner side of the top frame; when the hook is in the vertical position and when the hammock is lowered to the set position, the bottom of the hook body is hooked on the surface of the top frame, and the bed frame and the bottom edge of the top frame are separated by a set distance; when the hook is in the horizontal position and the hook body rotates relative to the hook handle so that the second right-angle bend is at the top, and when the hammock is lowered to the set position, the bottom of the second right-angle bend is hooked on the inner step on the inner side of the top frame. Due to the provision of the inner step, the gap between the bed frame and the top frame is reduced to a certain extent, which is beneficial to the aesthetics of the vehicle interior. In addition, it can also reduce the manufacturing difficulty of the top frame.
[0039] See appendix Figure 12 , 13 As one of the preferred technical solutions, the hook is a telescopic hook 5, meaning the hook handle is a telescopic structure; there are multiple telescopic hooks, fixed at intervals inside the four sides of the top frame; and the hook body of the telescopic hook extends inward towards the top frame; when the telescopic hook is in the retracted position, the bottom surface of the hook body is flush with the bottom surface of the top frame; when the telescopic hook is in the extended position, the hook body is below the top frame and at a predetermined distance from the lower edge of the top frame; and the size of the bed frame matches the internal space of the top frame. Using telescopic hooks can minimize the gap between the bed frame and the top frame, effectively beautifying the interior environment. Alternatively, the telescopic hook can be placed on one side of the bed frame, meaning there are multiple telescopic hooks spaced at intervals on the four sides of the bed frame; and the hook body of the telescopic hook extends towards the top frame; when the telescopic hook is in the retracted position and the hook body is hooked onto the surface of the top frame, the bottom surface of the bed frame is flush with the bottom surface of the top frame; when the telescopic hook is in the extended position and the hook body is hooked onto the surface of the top frame, the bottom edge of the bed frame is at a predetermined distance from the lower edge of the top frame (see Appendix). Figure 14 , 15 The advantage of placing the telescopic hook on one side of the bed frame is that it makes the bottom surface of the top frame appear as a single unit, effectively improving the aesthetics of the vehicle interior. However, a potential problem with telescopic hooks is that the extension length may not meet design requirements, meaning the hook body cannot maintain the set distance from the bottom edge of the top frame. In this case, a multi-layered telescopic hook structure can be used, where the inner hook shank extends relative to the outer hook shank, and the hook shank is multi-layered. Through this multi-layered extension, the extension length meets the design requirements.
[0040] See appendix Figure 16 As one of the preferred technical solutions, the liftable suspension rope is driven by a winch structure, which consists of four winches: a wheel base 6-1, a wheel 6-2, a motor base 6-3, and a motor I 6-4. The wheel bases are fixed at the four corners of the bed frame or at positions corresponding to the four corners of the bed frame on the inner side of the lifting top. The wheels are mounted on the wheel bases, and the suspension rope is wound around the wheels. The motor base is fixed to the side of the wheel bases. The motor I is fixed on the motor base, and its shaft is coaxially connected to the wheel. Using a winch structure to achieve the vertical movement of the bed body with the suspension rope is relatively simple and has a relatively low manufacturing cost. Of course, the winch structure can be mounted on the bed frame, or at positions corresponding to the four corners of the bed frame on the inner side of the lifting top, depending on the needs.
[0041] See appendix Figure 17As a preferred technical solution, the hook or double L-shaped hook uses a linkage mechanism for linkage. The linkage mechanism includes: a fixed rod 7-1, a pull rod 7-2, a connecting plate 7-3, a turntable 7-4, and a motor II. The hook shank of the hook or double L-shaped hook extends upwards and has a pull rod hole. The fixed rod has a hinge hole, and the pull rod has a pull hole. Multiple hooks or double L-shaped hooks are present, each hinged to the hinge hole on the fixed rod. The pull rod is hinged to the pull rod holes of multiple hooks or double L-shaped hooks. One end of the connecting plate is hinged to the end of the pull rod, and the other end is hinged to the eccentric shaft on the turntable. The motor II is fixed to the side of the turntable, and the shaft of the motor II is coaxially connected to the turntable. The rotation of the motor II (not shown in the figure) can drive the pull rod to move left and right, thereby driving the hooks to be in vertical or horizontal positions. Using a linkage mechanism to achieve linkage of each hook can reduce the tediousness and labor intensity of manual operation.
[0042] See appendix Figure 18 As a preferred technical solution, the telescopic hook is driven by a rack and pinion mechanism, which includes a rack 8-1, a gear 8-2, and a motor III 8-3. The rack is located on the side of the hook shank of the telescopic hook; the gear is located beside the rack and meshes with it; the motor III is fixed beside the gear, and the shaft of the motor III is coaxially connected to the gear. The rotation of the motor III drives the hook to move up and down through the operation of the rack and pinion mechanism. Using a rack and pinion mechanism to raise and lower each hook reduces the tediousness and labor intensity of manual operation.
[0043] See appendix Figure 19 As a preferred technical solution, the hook or double L-shaped hook is provided with a pin locking mechanism when it is in the horizontal position, or when the telescopic hook is in the retracted position. The pin locking mechanism includes a pin hole 9-1, a pin 9-2, and a spring 9-3. The pin hole is located on the inner side of the hook, double L-shaped hook, or telescopic hook and is a blind hole. The pin is located in the pin hole corresponding to the pin hole when the hook, double L-shaped hook, or telescopic hook is in the horizontal or retracted position. The spring is fitted onto the rear end of the pin. The pin locking mechanism is one of the commonly used locking mechanisms in this technical field; it is not only simple in structure but also easy to manufacture and fully meets the usage requirements.
[0044] Obviously, the beneficial technical effect of this utility model of RV pop-top bed structure is that there is no need to move sleeping equipment in and out, and the space inside the tent is integrated with the space inside the vehicle, which effectively improves the air conditioning and air flow inside the tent.
Claims
1. A pop-top bed structure for a motorhome, characterized in that, The pop-up bed structure includes a hammock and hooks. The hammock includes a frame, a fixing plate, a flipping plate, and suspension ropes. The frame is a rectangular rigid frame with an overall size smaller than the through-hole in the top frame. The fixing plate is a rectangular plate fixed to the front of the frame. The flipping plate is hinged to the rear of the frame. The suspension ropes are adjustable and consist of four ropes, which are fixed between the four corners of the frame and the corresponding positions on the inside of the pop-up bed, thus suspending the hammock below the pop-up bed. The hooks are L-shaped and multiple, and are rotatably fixed to the bottom of the four sides of the inside of the top frame through the end of the hook handle, with the hook body extending towards the inside of the top frame. When the hook is in a vertical position, the hook body is below the top frame and at a set distance from the bottom edge of the top frame.
2. The RV pop-top bed structure according to claim 1, characterized in that, The hook is a double L-shaped hook, that is, after the hook body is bent at a right angle, it is bent at a right angle to the side at the end of the hook body, and the hook body can rotate relative to the hook handle; there are multiple double L-shaped hooks, which are fixed to the four sides of the outer side of the bed frame at intervals at the end of the hook handle, and the hook body extends to the outer side of the bed frame; at the same time, an inner step is provided at the bottom of the inner side of the top frame; when the hook is in the vertical position and when the hammock is lowered to the set position, the bottom of the hook body is hooked on the surface of the top frame, and the bed frame and the bottom edge of the top frame are separated by a set distance; when the hook is in the horizontal position and the hook body rotates relative to the hook handle so that the second right angle bend is at the top, and when the hammock is lowered to the set position, the bottom of the second right angle bend is hooked on the inner step on the inner side of the top frame.
3. The RV pop-top bed structure according to claim 1, characterized in that, The hooks are telescopic hooks, meaning the hook handles are telescopic. Multiple telescopic hooks are fixed at intervals inside the four sides of the top frame. The hook bodies extend inwards towards the top frame. When the telescopic hook is in the retracted position, the bottom surface of the hook body is flush with the bottom surface of the top frame. When the telescopic hook is in the extended position, the hook body is below the top frame and at a predetermined distance from the bottom edge of the top frame. Furthermore, the size of the bed frame matches the internal space of the top frame.
4. The RV pop-top bed structure according to claim 3, characterized in that, The telescopic hooks are multiple and spaced apart on the four sides of the bed frame; and the hooks of the telescopic hooks extend toward the top frame side; when the telescopic hooks are in the retracted position and the hooks are hooked onto the surface of the top frame, the bottom surface of the bed frame is flush with the bottom surface of the top frame; when the telescopic hooks are in the extended position and the hooks are hooked onto the surface of the top frame, the bottom edges of the bed frame and the top frame are spaced apart by a set distance.
5. The RV pop-top bed structure according to claim 3 or 4, characterized in that, The telescopic hook has a multi-layer telescopic structure, meaning that the inner layer of the hook can extend relative to the outer layer of the hook, and the hook has multiple layers.
6. The RV pop-top bed structure according to claim 1, 2, 3 or 4, characterized in that, The liftable hoisting rope is driven by a winch structure, which consists of four winches: a wheel base, a wheel, a motor base, and a motor I. The wheel bases are fixed at the four corners of the bed frame or at positions corresponding to the four corners of the bed frame on the inner side of the lifting top. The wheel is mounted on the wheel base, and the hoisting rope is wound around the wheel. The motor base is fixed to the side of the wheel base. The motor I is fixed on the motor base, and the shaft of the motor I is coaxially connected to the wheel.
7. The RV pop-top bed structure according to claim 1 or 2, characterized in that, The hooks or double L-shaped hooks are linked by a linkage mechanism, which includes a fixed rod, a pull rod, a connecting plate, a turntable, and a motor II. The hook shank of each hook or double L-shaped hook extends upwards and has a pull rod hole. The fixed rod has a hinge hole, and the pull rod has a pull hole. Multiple hooks or double L-shaped hooks are present, each hinged to the hinge hole on the fixed rod. The pull rods are hinged to the pull rod holes of the multiple hooks or double L-shaped hooks. One end of the connecting plate is hinged to the end of the pull rod, and the other end is hinged to an eccentric shaft on the turntable. The motor II is fixed to the side of the turntable, and the shaft of the motor II is coaxially connected to the turntable.
8. The RV pop-top bed structure according to claim 3 or 4, characterized in that, The telescopic hook is driven by a rack and pinion mechanism, which includes a rack, a gear, and a motor III. The rack is located on the side of the hook shank of the telescopic hook. The gear is located beside the rack and meshes with it. The motor III is fixed beside the gear, and the shaft of the motor III is coaxially connected to the gear.
9. The RV pop-top bed structure according to claim 1, 2, 3 or 4, characterized in that, When the hook or double L-shaped hook is in the horizontal position, or when the telescopic hook is in the retracted position, a pin locking mechanism is provided; the pin locking mechanism includes: a pin hole, a pin, and a spring; the pin hole is located on the inner side of the hook, double L-shaped hook, or telescopic hook and is a blind hole; the pin is located in the pin hole at the corresponding position of the pin hole when the hook, double L-shaped hook, or telescopic hook is in the horizontal or retracted position; the spring is fitted onto the rear end of the pin.