A motor home roof lifting mechanism

Abstract

The utility model discloses a kind of motor home roof lifting mechanisms, including motor home main body and roof, roof is installed at the top of motor home main body, piston rod is fixedly installed at the four corners of roof bottom, the outer wall of piston rod is provided with cleaning assembly, piston rod is installed at the top of hydraulic cylinder barrel, hydraulic cylinder barrel is installed in the inside of motor home main body;Cleaning assembly includes the cleaning plate of being set in the outer wall of piston rod, cleaning plate is rotatably installed at the top of motor home main body by rotating component;When needing to be withdrawn after use, piston rod is contacted with cleaning cotton in the process of moving, the dust, fine sand, water film, light dirt such as oil stain newly stained on the surface of piston rod is wiped clean, which ensures that the surface of piston rod is as clean as possible when retracting hydraulic cylinder barrel, prevent dirt from entering the gap between piston rod and hydraulic cylinder barrel, cause the problem of seal wear aggravation, thereby prolong the service life of piston rod and relevant seal, finally ensure the stability of roof lifting mechanism.

Description

Technical Field

[0001] This utility model relates to the field of RV technology, specifically to an RV pop-up roof mechanism. Background Technology

[0002] With the improvement of people's living standards and the diversification of travel methods, RVs, as special vehicles that integrate living and transportation functions, have become increasingly popular among consumers. RVs not only provide travelers with relatively independent and comfortable living spaces, but also meet the need for people to move around at any time during their journeys. Among these features, the pop-up roof mechanism, as an important component of the RV, plays a crucial role in expanding the interior space and enhancing the user experience.

[0003] A search revealed a patent, CN218400357U, for a pop-up roof structure for a motorhome. This structure includes a motorhome body and a second-layer body. The second-layer body comprises a bottom plate, a top plate, side plates, baffles, and a lifting mechanism. The bottom plate is fixedly mounted on the top of the motorhome body and connected to the top plate via the lifting mechanism. Side plates are circumferentially arranged along the edges of the top and bottom plates, with one side plate covering the outside of the other. Baffles are circumferentially arranged around the side plates, with one end hinged to one side plate and the other end detachably connected to the other. This pop-up roof structure expands the space compared to traditional motorhome pop-up roof structures, better accommodating the functions of the motorhome's living room and kitchen, thus improving user comfort. Furthermore, baffles or sunshades can be opened and closed as needed to provide ventilation, rain protection, and sun shading, making it suitable for nighttime and various weather conditions, and offering good privacy.

[0004] Hydraulic technology is extremely common and efficient in RV pop-up roof mechanisms. It achieves high thrust output through changes in fluid pressure, possessing core advantages such as ease of operation, strong support, and high stability. It is widely used in RV structures such as hard pop-up roofs and full pop-up roofs. However, after the pop-up mechanism is raised, the piston rod of the hydraulic cylinder is exposed to the external environment for a long time, and pollutants such as dust and sand in the air easily adhere to its surface. When the mechanism is lowered and the piston rod retracts into the cylinder, these pollutants are brought in, acting like abrasives, accelerating the wear and scratching of the internal seals of the hydraulic cylinder, leading to hydraulic oil leakage, a drop in system pressure, and ultimately causing weak pop-up, inability to maintain pressure, or even system failure. Utility Model Content

[0005] The purpose of this invention is to provide a RV pop-up roof mechanism to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a motorhome pop-up mechanism, comprising a motorhome body and a roof panel, wherein the roof panel is installed on the top of the motorhome body, and piston rods are fixedly installed at the four corners of the bottom of the roof panel, wherein a cleaning component is provided on the outer wall of the piston rods, and the piston rods are installed on the top of a hydraulic cylinder, wherein the hydraulic cylinder is installed inside the motorhome body;

[0007] The cleaning assembly includes a cleaning plate disposed on the outer wall of the piston rod. The cleaning plate is rotatably mounted on the top of the RV body via a rotating assembly. Two cleaning plates are symmetrically arranged, and cleaning cotton is installed inside both cleaning plates.

[0008] As a further preferred embodiment of this technical solution, the rotating assembly includes a first gear installed at the bottom of the cleaning plate, a second gear meshing with one side of the first gear, a first rotating shaft fixedly installed on the inner wall of the second gear, a first bevel gear fixedly connected to the bottom end of the first rotating shaft, a second bevel gear meshing with one side of the first bevel gear, a second rotating shaft fixedly installed on one side of the second bevel gear, and a connecting rope wound around the outer wall of the second rotating shaft, the top end of the connecting rope being fixedly installed at the bottom of the top plate.

[0009] As a further preferred embodiment of this technical solution, the second rotating shaft is rotatably mounted on the inner wall of the RV body, and a coil spring is installed on the outer wall of the second rotating shaft.

[0010] As a further preferred embodiment of this technical solution, a connecting rod is fixedly connected to the bottom end of the cleaning plate, and the connecting rod is slidably installed on the inner wall of the connecting groove, which is located on the top of the first gear.

[0011] As a further preferred embodiment of this technical solution, a movable rod is embedded inside the cleaning plate, and a limiting plate is fixedly connected to the bottom end of the movable rod. The limiting plate is slidably installed on the inner wall of the cleaning plate, and a spring connects the limiting plate to the inner wall of the cleaning plate.

[0012] This utility model provides a pop-up roof mechanism for RVs, which has the following beneficial effects:

[0013] (1) By setting up a cleaning component, when the top plate needs to be raised, the piston rod is driven to move upward by the hydraulic cylinder, and the piston rod drives the top plate to move upward to raise it. The same applies when it needs to be retracted after use. During the movement, the piston rod comes into contact with the cleaning cotton to wipe away the dust, fine sand, water film, light oil stains and other impurities that are newly adhering to the surface of the piston rod. This ensures that the surface of the piston rod is as clean as possible when it retracts into the hydraulic cylinder, preventing the problem of increased wear of the seals due to dirt entering the gap between the piston rod and the hydraulic cylinder, thereby extending the service life of the piston rod and related seals, and ultimately ensuring the stability of the lifting mechanism.

[0014] (2) By setting up a rotating component, when the top plate moves up, it pulls the connecting rope to drive the second rotating shaft to rotate. The rotation of the second rotating shaft drives the rotation of the second bevel gear, the rotation of the second bevel gear drives the rotation of the first bevel gear, the rotation of the first bevel gear drives the rotation of the first rotating shaft, the rotation of the first rotating shaft drives the rotation of the second gear, the rotation of the second gear drives the rotation of the first gear, and the rotation of the first gear drives the rotation of the cleaning plate and the cleaning cotton. This causes the cleaning cotton to rotate and clean the piston rod during its movement, so that the fiber area in contact with the piston rod surface is continuously renewed. This ensures that the piston rod surface is always in contact with the most effective cleaning surface, achieving continuous, efficient and uniform cleaning. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the RV body and roof panel of this utility model;

[0017] Figure 3 This is a schematic cross-sectional view of the main body and roof of the RV of this utility model;

[0018] Figure 4 For the present utility model Figure 3 Enlarged schematic diagram of the structure at point A in the middle;

[0019] Figure 5 This is a schematic cross-sectional view of the cleaning plate structure of this utility model.

[0020] In the diagram: 1. Main body of the RV; 2. Top panel; 3. Hydraulic cylinder; 4. Piston rod; 5. Cleaning plate; 6. Cleaning cotton; 7. Connecting rod; 8. Connecting groove; 9. First gear; 10. Second gear; 11. First rotating shaft; 12. First bevel gear; 13. Second bevel gear; 14. Second rotating shaft; 15. Connecting rope; 16. Coil spring; 17. Movable rod; 18. Limiting plate; 19. Spring. Detailed Implementation

[0021] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0022] This utility model provides a technical solution: such as Figures 1 to 5 As shown, in this embodiment, a motorhome pop-up mechanism includes a motorhome body 1 and a roof plate 2. The roof plate 2 is installed on the top of the motorhome body 1. Piston rods 4 are fixedly installed at the four corners of the bottom of the roof plate 2. A cleaning component is provided on the outer wall of the piston rods 4. The piston rods 4 are installed on the top of the hydraulic cylinder 3. The hydraulic cylinder 3 is installed inside the motorhome body 1.

[0023] The cleaning assembly includes a cleaning plate 5 disposed on the outer wall of the piston rod 4. The cleaning plate 5 is rotatably mounted on the top of the RV body 1 via a rotating assembly. There are two cleaning plates 5 symmetrically arranged, and cleaning cotton 6 is installed inside both cleaning plates 5.

[0024] The existing patent CN218400357U discloses a motorhome pop-up roof structure. This patent discloses the motorhome body 1, roof 2, hydraulic cylinder 3 and piston rod 4 proposed in this application. The technical means will not be described in detail here.

[0025] When the top plate 2 needs to be raised, the piston rod 4 is driven to move upward by the hydraulic cylinder 3, and the piston rod 4 drives the top plate 2 to move upward and raise it.

[0026] Similarly, when the piston rod 4 needs to be retracted after use, it comes into contact with the cleaning cotton 6 during the movement process, wiping away any newly adhering dust, fine sand, water film, light oil stains and other impurities on the surface of the piston rod 4. This ensures that the surface of the piston rod 4 is as clean as possible when it retracts into the hydraulic cylinder 3, preventing the problem of accelerated wear of the seals due to dirt entering the gap between the piston rod 4 and the hydraulic cylinder 3, thereby extending the service life of the piston rod 4 and related seals, and ultimately ensuring the stability of the lifting mechanism.

[0027] like Figures 1 to 5 As shown, the rotating assembly includes a first gear 9 installed at the bottom of the cleaning plate 5, a second gear 10 meshing with one side of the first gear 9, a first rotating shaft 11 fixedly installed on the inner wall of the second gear 10, a first bevel gear 12 fixedly connected to the bottom end of the first rotating shaft 11, a second bevel gear 13 meshing with one side of the first bevel gear 12, a second rotating shaft 14 fixedly installed on one side of the second bevel gear 13, and a connecting rope 15 wound around the outer wall of the second rotating shaft 14, with the top end of the connecting rope 15 fixedly installed at the bottom of the top plate 2.

[0028] When the top plate 2 moves upward, it pulls the connecting rope 15, causing the second rotating shaft 14 to rotate. The rotation of the second rotating shaft 14 causes the second bevel gear 13 to rotate, which in turn causes the first bevel gear 12 to rotate. The rotation of the first bevel gear 12 causes the first rotating shaft 11 to rotate, which in turn causes the second gear 10 to rotate, which in turn causes the first gear 9 to rotate. The rotation of the first gear 9 causes the cleaning plate 5 and the cleaning cotton 6 to rotate, so that the cleaning cotton 6 rotates and cleans the piston rod 4 during its movement. This ensures that the fiber area in contact with the surface of the piston rod 4 is constantly renewed, thus ensuring that the surface of the piston rod 4 is always in contact with the most effective cleaning surface, achieving continuous, efficient and uniform cleaning.

[0029] Furthermore, for sticky stains (such as tree sap and grease), the rotating cleaning cotton 6 can generate a "tearing" force, making it easier to peel the adhering substances off the surface of the piston rod 4, thereby enhancing the ability to remove complex stains.

[0030] like Figures 1 to 5 As shown, the second rotating shaft 14 is rotatably mounted on the inner wall of the RV body 1, and a coil spring 16 is mounted on the outer wall of the second rotating shaft 14.

[0031] When the top plate 2 moves upward, it drives the connecting rope 15 to drive the second rotating shaft 14 to rotate, and the coil spring 16 deforms to store elastic potential energy.

[0032] When the top plate 2 moves down, the elastic potential energy is released through the coil spring 16, causing the second rotating shaft 14 to reverse and rewind the connecting rope 15. At the same time, the cleaning plate 5 and the cleaning cotton 6 rotate again, so that when the piston rod 4 moves up and down, the cleaning plate 5 and the cleaning cotton 6 rotate to clean it.

[0033] like Figures 1 to 5 As shown, a connecting rod 7 is fixedly connected to the bottom end of the cleaning plate 5. The connecting rod 7 is slidably installed on the inner wall of the connecting groove 8, which is opened on the top of the first gear 9.

[0034] When the cleaning cotton 6 needs to be replaced, simply remove the cleaning plate 5 from the RV body 1 and let the connecting rod 7 slide out of the connecting groove 8. The installation is the same.

[0035] The two cleaning plates 5 are magnetically connected. When the two cleaning plates 5 are removed from the RV body 1, they are moved outward and separated to replace the cleaning cotton 6. The installation is the same, which helps to improve the convenience of replacement.

[0036] like Figures 1 to 5 As shown, a movable rod 17 is embedded inside the cleaning plate 5. A limiting plate 18 is fixedly connected to the bottom end of the movable rod 17. The limiting plate 18 is slidably installed on the inner wall of the cleaning plate 5. A spring 19 is connected between the limiting plate 18 and the inner wall of the cleaning plate 5.

[0037] When the cleaning cotton 6 needs to be replaced, first lift the top plate 2. The bottom of the top plate 2 separates from the top of the movable rod 17. The elastic potential energy released by the spring 19 drives the movable rod 17 to move upward, so that the top of the movable rod 17 slides out of the cleaning plate 5. The staff can then pull the movable rod 17 to remove the cleaning plate 5, thereby improving maintenance efficiency.

[0038] This utility model provides a pop-up roof mechanism for RVs, the specific working principle of which is as follows:

[0039] When the top plate 2 needs to be raised, the piston rod 4 is driven to move upward by the hydraulic cylinder 3, and the piston rod 4 drives the top plate 2 to move upward and raise it.

[0040] When the top plate 2 moves upward, it pulls the connecting rope 15, causing the second rotating shaft 14 to rotate. The rotation of the second rotating shaft 14 causes the second bevel gear 13 to rotate. The rotation of the second bevel gear 13 causes the first bevel gear 12 to rotate. The rotation of the first bevel gear 12 causes the first rotating shaft 11 to rotate. The rotation of the first rotating shaft 11 causes the second gear 10 to rotate. The rotation of the second gear 10 causes the first gear 9 to rotate. The rotation of the first gear 9 causes the cleaning plate 5 and the cleaning cotton 6 to rotate, so that the piston rod 4 rotates during the movement to clean it.

[0041] Similarly, when the piston rod 4 needs to be retracted after use, it comes into contact with the cleaning cotton 6 during the movement. The cleaning cotton 6 wipes away any newly adhering dust, fine sand, water film, light oil stains and other impurities on the surface of the piston rod 4, ensuring that the surface of the piston rod 4 is as clean as possible when it retracts into the hydraulic cylinder 3.

[0042] When the cleaning cotton 6 needs to be replaced, first lift the top plate 2. The bottom of the top plate 2 separates from the top of the movable rod 17. The elastic potential energy released by the spring 19 drives the movable rod 17 to move upward, so that the top of the movable rod 17 slides out of the cleaning plate 5. The staff pulls the movable rod 17 to slide the cleaning plate 5 out of the RV body 1. Then the two cleaning plates 5 move outward and separate to replace the cleaning cotton 6. The installation is the same.

[0043] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A RV pop-up roof mechanism, comprising an RV body (1) and a roof panel (2), characterized in that: The top plate (2) is installed on the top of the RV body (1). Piston rods (4) are fixedly installed at the four corners of the bottom of the top plate (2). A cleaning component is provided on the outer wall of the piston rod (4). The piston rod (4) is installed on the top of the hydraulic cylinder (3). The hydraulic cylinder (3) is installed inside the RV body (1). The cleaning assembly includes a cleaning plate (5) disposed on the outer wall of the piston rod (4). The cleaning plate (5) is rotatably mounted on the top of the RV body (1) by a rotating assembly. There are two cleaning plates (5) symmetrically arranged, and cleaning cotton (6) is installed inside both cleaning plates (5).

2. The RV pop-up roof mechanism according to claim 1, characterized in that: The rotating assembly includes a first gear (9) installed at the bottom of the cleaning plate (5), a second gear (10) meshing with one side of the first gear (9), a first rotating shaft (11) fixedly installed on the inner wall of the second gear (10), a first bevel gear (12) fixedly connected to the bottom end of the first rotating shaft (11), a second bevel gear (13) meshing with one side of the first bevel gear (12), a second rotating shaft (14) fixedly installed on one side of the second bevel gear (13), and a connecting rope (15) wound around the outer wall of the second rotating shaft (14), the top end of the connecting rope (15) fixedly installed at the bottom of the top plate (2).

3. The RV pop-up roof mechanism according to claim 2, characterized in that: The second rotating shaft (14) is rotatably mounted on the inner wall of the RV body (1), and a coil spring (16) is mounted on the outer wall of the second rotating shaft (14).

4. The RV pop-up roof mechanism according to claim 1, characterized in that: The bottom end of the cleaning plate (5) is fixedly connected to a connecting rod (7), which is slidably installed on the inner wall of the connecting groove (8), which is opened on the top of the first gear (9).

5. A RV pop-up roof mechanism according to claim 1, characterized in that: The cleaning plate (5) has a movable rod (17) embedded inside. The bottom end of the movable rod (17) is fixedly connected to a limiting plate (18). The limiting plate (18) is slidably installed on the inner wall of the cleaning plate (5). The limiting plate (18) is connected to the inner wall of the cleaning plate (5) by a spring (19).

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