Touring car carriage jacking mechanism
By using a motor-driven lifting assembly and an automatic locking assembly, the problem of cumbersome operation of the RV roof lifting mechanism is solved, achieving a convenient and safe roof support effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-27
- Publication Date
- 2026-03-13
AI Technical Summary
Existing RV pop-top mechanisms are cumbersome to operate, requiring manual adjustment of the wrench to engage the locking latch and hook, and the limited operating space leads to reduced safety.
The vehicle employs a motor-driven lifting assembly and an automatic locking assembly. The motor drives a bidirectional threaded rod and an X-shaped transmission component to lift the roof, and the support plate automatically unfolds and locks. Operation is simple; to unlock, simply pull the pull plate.
This technology improves the convenience and safety of the RV's roof-lifting process, reduces operational difficulty, and enhances the stability and safety of the roof support.
Smart Images

Figure CN223989984U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of RV pop-top technology, specifically relating to an RV pop-top mechanism. Background Technology
[0002] A motorhome is a mobile living space that combines the functions of a "house" and a "vehicle." It is equipped with basic home facilities such as a kitchen, bedroom, and bathroom, and is suitable for travel, leisure, or entertainment. To provide a more spacious resting area and maximize the use of the interior space, existing motorhomes usually have a pop-up roof mechanism.
[0003] The existing patent with publication number CN219446835U discloses a roof lifting and locking mechanism for RVs, which includes a lifting roof, a first support plate, a second support plate, an adjusting wrench, a locking buckle, and a locking buckle hook. In use, the operator first lifts the lifting roof so that both the first and second support plates rotate to a vertical position. Then, the adjusting wrench is turned so that the locking buckle engages with the locking buckle hook, thereby locking the support angle between the first and second support plates.
[0004] However, the aforementioned mechanism not only requires raising the RV's roof, but also necessitates manually operating an adjusting wrench to engage the locking latch and hook, making the operation rather cumbersome. Furthermore, the adjusting wrench is located on the second support plate, while the locking latch hook is on the first support plate. The high position of both the first and second support plates and the limited operating space further complicate the locking process, reducing safety. Utility Model Content
[0005] To address the problems existing in the background technology, this utility model provides a RV cabin roof lifting mechanism.
[0006] To achieve the above objectives, the present invention provides the following technical solution:
[0007] A RV roof-lifting mechanism includes a RV body and a lifting assembly. The RV body is connected to a roof via the lifting assembly. A first support plate is rotatably mounted inside the RV body, and a second support plate is rotatably mounted inside the roof. A third rotating shaft is rotatably mounted on the end of the first support plate not connected to the RV body, and the third rotating shaft is fixedly connected to the end of the second support plate not connected to the roof. A locking assembly is provided on the first support plate, including a fixed frame that is fixedly connected to both the first support plate and rotatably connected to the third rotating shaft. A slot is formed on the outer surface of the third rotating shaft. A rod is slidably inserted into the fixed frame, with one end of the rod engaging with the slot and the other end fixedly mounted with a connecting plate. An elastic element is provided between the connecting plate and the fixed frame, and a pull rope is fixedly mounted on the connecting plate. The end of the pull rope away from the connecting plate extends slidably to the outside of the RV body and is fixedly mounted with a pull plate.
[0008] Furthermore, the lifting assembly includes a motor, a first sliding groove is formed on the carriage, and a second sliding groove is formed on the roof opposite to the first sliding groove. Two moving blocks are slidably and limitly arranged in the first sliding groove, and two sliding shafts are slidably and limitly arranged in the second sliding groove. The motor is fixedly installed in the carriage, and the output shaft of the motor extends rotatably into the first sliding groove and is fixedly provided with a bidirectional threaded rod. The two threaded sections of the bidirectional threaded rod are threadedly connected to the two moving blocks one by one. An X-shaped transmission component is provided between the two moving blocks and the two sliding shafts.
[0009] Furthermore, the X-shaped transmission component consists of two intersecting connecting rods, which are rotatably connected. One end of the connecting rod is rotatably connected to a sliding shaft, and the other end of the connecting rod is hinged to a moving block. A first rotating shaft is provided at the hinge point between the connecting rod and the moving block.
[0010] Furthermore, the elastic element includes a guide rod, which is fixedly mounted on the connecting plate. One end of the guide rod is slidably inserted into the fixed frame. A spring is sleeved on the guide rod, located outside the fixed frame. One end of the spring is fixedly connected to the fixed frame, and the other end is fixedly connected to the connecting plate.
[0011] This application has the following beneficial effects:
[0012] 1. During the process of the lifting assembly raising the roof, the first and second support plates will automatically rotate and unfold. When the first and second support plates rotate to a vertical position, the locking assembly will automatically lock the support angle between the first and second support plates. The entire operation process is simpler and more convenient to use.
[0013] 2. Once the roof has risen to a certain height, the locking assembly will automatically lock the support angles of the first and second support plates. To release the lock, the operator only needs to pull the lever located outside the vehicle. The entire process does not require the operator to be in a high position, thus reducing the difficulty of operation and improving safety.
[0014] 3. The lifting assembly can improve the stability of the roof when it is supported, further ensuring safety. Attached Figure Description
[0015] The above and other objects, features, and advantages of the present invention will become readily understood by reading the following detailed description of exemplary embodiments with reference to the accompanying drawings. In the drawings, several embodiments of the present invention are shown by way of example and not limitation, and like or corresponding reference numerals denote like or corresponding parts, wherein:
[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0017] Figure 2 This is a schematic diagram of the lifting component in this utility model;
[0018] Figure 3 This is a schematic diagram showing the connection relationship between the first support plate and the second support plate in this utility model;
[0019] Figure 4 yes Figure 3 A magnified view of a portion of point A in the middle;
[0020] Figure 5 This is a schematic diagram of the locking component in this utility model;
[0021] Figure 6 This is a partial structural schematic diagram of the present invention.
[0022] In the picture:
[0023] 1. Carriage; 2. Roof; 3. Motor; 4. Double-ended threaded rod; 5. Moving block; 6. First rotating shaft; 7. Connecting rod; 8. Guide shaft; 9. Second rotating shaft; 10. First support plate; 11. Second support plate; 12. Third rotating shaft; 13. Fixed frame; 14. Connecting plate; 15. Insert rod; 16. Spring; 17. Pull plate; 18. Slot; 19. Extension frame; 20. Sliding shaft; 21. Fourth rotating shaft; 22. Pull rope; 23. First slide groove; 24. Second slide groove; 25. Guide rod. Detailed Implementation
[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Those skilled in the art should understand that the embodiments described below are only some, not all, of the embodiments disclosed. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.
[0025] like Figures 1-6 As shown, the technical solution adopted by this utility model is as follows: a motorhome cabin lifting mechanism, including a cabin 1 and a lifting assembly, the cabin 1 is connected to a roof 2 through the lifting assembly, the lifting assembly is provided in two sets, the two sets of lifting assemblies are symmetrically arranged on both sides of the cabin 1.
[0026] like Figures 1-2As shown, the lifting assembly includes a motor 3. A first sliding groove 23 is formed on the carriage 1, and a second sliding groove 24 opposite to the first sliding groove 23 is formed on the roof 2. Two moving blocks 5 are horizontally slidable within the first sliding groove 23, and two sliding shafts 20 are horizontally slidable within the second sliding groove 24. The motor 3 is fixedly installed inside the carriage 1. The output shaft of the motor 3 extends rotatably into the first sliding groove 23 and is fixedly mounted with a bidirectional threaded rod 4. The two threaded sections of the bidirectional threaded rod 4 are threadedly connected to the two moving blocks 5 one-to-one. An X-shaped transmission component is provided between the two moving blocks 5 and the two sliding shafts 20.
[0027] The X-type transmission component consists of two cross-connecting rods 7, which are rotatably connected. One end of the connecting rod 7 is rotatably connected to the sliding shaft 20, and the other end of the connecting rod 7 is hinged to the moving block 5. A first rotating shaft 6 is provided at the hinge point between the connecting rod 7 and the moving block 5.
[0028] In addition, an extension frame 19 and several guide shafts 8 are fixedly installed at the bottom of the roof 2. The extension frame 19 is slidably inserted into the carriage 1, and the carriage 1 has guide grooves that slide with the guide shafts 8. By setting the extension frame 19, the roof 2 can provide an internal space that is not connected to the outside world after it is raised, while the guide shafts 8 and guide grooves make the movement of the roof 2 more stable.
[0029] When motor 3 is started, its output shaft drives the bidirectional threaded rod 4 to rotate, causing the two moving blocks 5 to slide towards each other. This, in turn, lifts the roof 2 via the two connecting rods 7, which in turn causes the extension frame 19 to rise synchronously. During this process, the sliding shaft 20 slides within the second sliding groove 24, the guide shaft 8 slides relative to the guide groove, and the two connecting rods 7 rotate relative to each other. Furthermore, both ends of each connecting rod 7 rotate around the connection point at both ends.
[0030] Two second rotating shafts 9 are rotatably installed inside the carriage 1. A first support plate 10 is fixedly installed on the outer surface of each second rotating shaft 9. The two first support plates 10 are symmetrically arranged on both sides of the carriage 1 where no lifting assembly is installed.
[0031] Two fourth rotating shafts 21 are rotatably installed inside the roof 2. A second support plate 11 is fixedly installed on the outer surface of each fourth rotating shaft 21, and the second support plate 11 corresponds one-to-one with the first support plate 10. A third rotating shaft 12 is fixedly installed at the end of each second support plate 11 that is not connected to the fourth rotating shaft 21, and each third rotating shaft 12 is rotatably connected to the corresponding first support plate 10.
[0032] like Figures 3-5As shown, each first support plate 10 is provided with a locking assembly acting on the third rotating shaft 12. The locking assembly includes a fixing frame 13, which is fixedly connected to the first support plate 10 and rotatably connected to the third rotating shaft 12. A slot 18 is fixedly provided on the outer surface of the third rotating shaft 12. A rod 15 is slidably inserted into the fixing frame 13. One end of the rod 15 inserted into the fixing frame 13 engages with the slot 18. A connecting plate 14 is fixedly provided at the end of the rod 15 outside the fixing frame 13. An elastic element is provided between the connecting plate 14 and the fixing frame 13. In addition, a pull rope 22 is fixedly provided at the end of the connecting plate 14 that is not connected to the rod 15. The other end of the pull rope 22 extends slidably to the outside of the carriage 1 and is fixedly provided with a pull plate 17.
[0033] It should be noted that the pull plate 17 is located in the middle of the carriage 1. There are four pull ropes 22 and two pull plates 17. Each pull plate 17 is connected to two pull ropes 22.
[0034] The elastic element includes a guide rod 25, which is fixedly mounted on the connecting plate 14. One end of the guide rod 25 is slidably inserted into the fixed frame 13, and a limiting block (not shown in the figure) is fixedly mounted on the end of the guide rod 25 inserted into the fixed frame 13 to prevent the guide rod 25 from detaching from the fixed frame 13. A spring 16 is sleeved on the outer surface of the guide rod 25 outside the fixed frame 13. One end of the spring 16 is fixedly connected to the fixed frame 13, and the other end is fixedly connected to the connecting plate 14. The spring 16 is always in a stretched state.
[0035] Working principle: When the roof needs to be raised, the motor 3 is started. The output shaft of the motor 3 drives the bidirectional threaded rod 4 to rotate, causing the two moving blocks 5 to slide towards each other. This, in turn, lifts the roof 2 through the two connecting rods 7. The roof 2 then drives the extension frame 19 to rise synchronously. The extension frame 19 provides an internal space isolated from the outside world after the roof 2 is raised, while the guide shaft 8 and guide groove make the movement of the roof 2 more stable. During this process, the sliding shaft 20 slides within the second sliding groove 24, the guide shaft 8 slides relative to the guide groove, and the two connecting rods 7 rotate relative to each other. Both ends of each connecting rod 7 rotate around the connection point at both ends.
[0036] Simultaneously, the rising of the roof 2 causes the fourth rotating shaft 21 to rise, which in turn pulls the second support plate 11 upward, and the second support plate 11 pulls the first support plate 10 upward. During this process, the second support plate 11 rotates around the central axis of the fourth rotating shaft 21, the first support plate 10 rotates around the central axis of the second rotating shaft 9, and the fixed frame 13 and the first support plate 10 rotate relative to the third rotating shaft 12. The insert rod 15 slides against the outer surface of the third rotating shaft 12 under the elastic action of the spring 16, and the pull plate 17 rises a certain distance.
[0037] When both the first support plate 10 and the second support plate 11 are rotated to the vertical position, the insertion rod 15 is directly opposite the slot 18. Therefore, the insertion rod 15 will be inserted into the slot 18 under the pull of the spring 16, thereby locking the support angle between the first support plate 10 and the second support plate 11.
[0038] When descent is required, simply pull down the pull plate 17, which in turn pulls the connecting plate 14 via the pull rope 22, causing the insertion rod 15 to disengage from the slot 18 and releasing the locking state. Subsequently, the output shaft of the control motor 3 rotates in the reverse direction, causing the roof 2 to descend to the top of the carriage 1.
[0039] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A recreational vehicle compartment roof raising mechanism, characterized by, The utility model provides a kind of vehicle roof lifting device, including car (1) and jacking assembly, the car (1) is connected with roof (2) by jacking assembly, first support plate (10) is rotationally arranged in car (1), second support plate (11) is rotationally arranged in roof (2), the end of first support plate (10) not connected with car (1) is rotationally arranged third rotating shaft (12), and third rotating shaft (12) is fixedly connected with the end of second support plate (11) not connected with roof (2);Locking assembly is equipped on the first support plate (10), and locking assembly includes fixed frame (13), and fixed frame (13) is fixedly connected with first support plate (10) and rotationally connected with third rotating shaft (12);Slot (18) is opened on the outer surface of third rotating shaft (12);Insertion plug rod (15) is slidably inserted in fixed frame (13), one end of insertion plug rod (15) is transmission plug-in cooperation with slot (18), and the other end is fixedly arranged connecting plate (14);Elastic member is equipped between connecting plate (14) and fixed frame (13), and pull rope (22) is fixedly arranged on connecting plate (14), and one end of pull rope (22) away from connecting plate (14) is slidably extended to the outside of car (1) and is fixedly arranged pull plate (17).
2. The recreational vehicle compartment lift mechanism of claim 1, wherein, The jacking assembly includes motor (3), first sliding slot (23) is opened on car (1), second sliding slot (24) is opened on roof (2) and is opposite to first sliding slot (23), two moving blocks (5) are limitingly slidably arranged in first sliding slot (23) along horizontal direction, and two sliding shafts (20) are limitingly slidably arranged in second sliding slot (24) along horizontal direction;Motor (3) is fixedly installed in car (1), and the output shaft of motor (3) rotationally extends to first sliding slot (23) and is fixedly arranged bidirectional screw rod (4);Two threaded sections of bidirectional screw rod (4) are threadedly connected with two moving blocks (5) one by one;X-shaped transmission member is equipped between two moving blocks (5) and two sliding shafts (20).
3. The recreational vehicle compartment lift-on-top mechanism of claim 2, wherein, The X-shaped transmission member is composed of two cross-connected connecting rods (7), and the two connecting rods (7) are rotationally connected, one end of connecting rod (7) is rotationally connected with sliding shaft (20), the other end of connecting rod (7) is hingedly connected with moving block (5), and first rotating shaft (6) is arranged at the hinged position of connecting rod (7) and moving block (5).
4. The recreational vehicle compartment lift mechanism of claim 1, wherein, The elastic member includes guide rod (25), guide rod (25) is fixedly arranged on connecting plate (14), and one end of guide rod (25) is slidably inserted into fixed frame (13);Spring (16) is sleeved on guide rod (25), spring (16) is located outside fixed frame (13), one end of spring (16) is fixedly connected with fixed frame (13), and the other end is fixedly connected with connecting plate (14).
Citation Information
Patent Citations
Roof lifting locking mechanism for motor home
CN219446835U