Counterground door of cross-country motor home
The design of the top and bottom doors with a manually driven structure solves the problem of electric ladders being easily affected by circuit failures, enabling normal opening and closing even in the event of a circuit failure, thus improving the safety and reliability of the off-road RV.
Patent Information
- Application Number
- CN202520719736.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-16
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-04-16
AI Technical Summary
The electric ladder drive structure of existing off-road RVs is susceptible to circuit failures, leading to safety hazards and the inability to open or close properly.
The second door is opened and closed by a manual drive mechanism that transmits power through a handle, a first linkage, and a second linkage, thus avoiding the self-locking problem of electric push rods.
In the event of a circuit failure, this ensures that the door can open and close normally, eliminating potential safety hazards and improving the reliability and safety of its use.
Smart Images

Figure CN223919080U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the field of house car, concretely relates to a cross-country house car heaven and earth door. BACKGROUND
[0002] With the social development, people's living standards unceasingly improve, the type of choosing to go out travel travel mode is also more and more, plane, train, self-driving tour and so on multiple choices, among them, self-driving tour has a kind of choice again, house car;House car is not only suitable for long-distance travel and cross-country exploration, but also considers daily commuting and travel function.House car is also called "house on wheels", and has the functions of house and car.
[0003] The current cross-country house car includes car body, door, electric ladder, electric ladder storage box, electric ladder cover plate and sensor, the door is arranged on the car body, the electric ladder storage box is installed on the car body below the door, and one side of the electric ladder cover plate is movably connected with the electric ladder storage box;The electric ladder includes electric push rod, telescopic truss and pedal, the fixed plate is arranged on the electric ladder storage box, the telescopic truss is installed on the fixed plate, and the two ends of the telescopic truss are respectively connected with the electric push rod and the electric ladder cover plate, and the pedal is fixed on the telescopic truss;The sensor is installed on the door frame of the door, and the sensor is connected with the motor of the electric push rod.
[0004] When the door is opened, the sensor 7 detects that the door is located at the open position, the motor of the electric push rod is controlled to rotate forward, the electric push rod drives the telescopic truss to stretch out, so that the pedal and the electric ladder cover plate are pushed out, and the whole electric ladder is lowered;When the door is closed, the sensor detects that the door is located at the closed position, the motor of the electric push rod is controlled to reverse, the electric push rod pulls the telescopic truss to retract, so that the pedal and the electric ladder cover plate are retracted, and the whole electric ladder is stored in the electric ladder storage box, and the electric ladder cover plate closes the electric ladder storage box 4.
[0005] The electric ladder arranged on the above cross-country house car is completely opened or closed by relying on the action of the electric push rod, although this structure is relatively convenient, in order to make the electric ladder in the opened or opened state keep the state, the electric push rod usually has self-locking function, to avoid accidents caused by accidental power failure.However, once the circuit of the electric push rod is powered off or fails, the electric ladder cannot be opened or closed due to the self-locking nature of the electric push rod, therefore, this structure has safety hazards. UTILITY MODEL CONTENTS
[0006] The utility model provides a kind of cross-country house car heaven and earth door, the door of the utility model is not limited by circuit failure when opening or closing, and eliminates the hidden danger of safe opening or closing door.
[0007] The technical solutions to solve the above technical problems are as follows:
[0008] The off-road vehicle land door comprises a door frame, a first door, a second door, a gangway, the first door is hinged to the door frame, the second door is hinged to the door frame, the second door is located below the first door, the gangway is installed on the second door, and the off-road vehicle land door further comprises:
[0009] A first connecting seat is fixed to the door frame;
[0010] A first connecting rod is movably connected to the first connecting seat, and a handle is arranged on the first connecting rod;
[0011] A second connecting rod is movably connected to one end of the first connecting rod, and the other end of the second connecting rod is connected to the gangway or the second door.
[0012] Compared with the prior art, the driving structure of the second door is changed, i.e., the structure that the electric push rod drives the second door is changed into a structure that is manually driven, the manual driving exerts a pushing force on the handle when being operated, the handle drives the first connecting rod to rotate, the first connecting rod transmits power to the second connecting rod, and the second connecting rod transmits power to the gangway or the second door, so that the second door is opened or closed. BRIEF DESCRIPTION OF DRAWINGS
[0013] Figure 1 It is a perspective view of the off-road vehicle land door in a first direction in a full closed state.
[0014] Figure 2 It is a perspective view of the off-road vehicle land door in a second direction in a full closed state.
[0015] Figure 3 It is a sectional view of the off-road vehicle land door in a full closed state.
[0016] Figure 4 It is an enlarged view of Q in Figure 3
[0017] Figure 5 It is a perspective view of the off-road vehicle land door in a half closed state.
[0018] Figure 6 It is an enlarged view of P in Figure 5
[0019] Figure 7 It is a perspective view of the off-road vehicle land door in a full opened state.
[0020] Markings in the drawings:
[0021] Door frame 1, first door 2, blocking part 2a, second door 3, baffle 3a, gangway 4, first connecting seat 5, first link 6, handle 6a, second link 7, second connecting seat 8, first gas spring 9, second gas spring 10, fixing post 11, press impact lock 12, pressure block 13, unlocking drive component 14. Detailed Implementation
[0022] like Figures 1 to 7 As shown, the off-road RV door of this embodiment includes a door frame 1, a first door 2, a second door 3, a gangway 4, a first connecting seat 5, a first connecting rod 6, and a second connecting rod 7. The following is a detailed description of each part and the relationship between them.
[0023] The first door 2 is hinged to the door frame 1, and the second door 3 is hinged to the door frame 1. The second door 3 is located below the first door 2. The upper end of the first door 2 is hinged to the upper end of the door frame 1, and the lower end of the second door 3 is hinged to the lower end of the door frame 1. Therefore, when the first door 2 is opened, a pushing force is applied to it, causing it to rotate towards the top of the vehicle or towards the sky. When the second door 3 is opened, a pushing force is applied to it, causing it to rotate towards the bottom of the vehicle or towards the ground. The gangway 4 is installed on the second door 3 and is fixed to it by screws or welding. When the second door 3 rotates, the gangway 4 rotates along with it.
[0024] When the first door 2 and the second door 3 are closed, the lower end of the first door 2 blocks the upper end of the second door 3. In this embodiment, a blocking part 2a is fixed to the lower end of the first door 2, and a baffle 3a is fixed to the upper end of the second door 3. The baffle 3a has an L-shaped cross-section. When the blocking part 2a cooperates with the baffle 3a (for example, the blocking part 2a presses on the baffle 3a), the lower end of the first door 2 blocks the upper end of the second door 3.
[0025] With the first door 2 and the second door 3 closed, the gangway 4 is located inside the vehicle's passenger compartment. Because the first door 2 obstructs the second door 3, it prevents the second door 3 from rotating, thus avoiding the gangway 4 from rotating with the second door 3 and being exposed to the outside of the vehicle. Therefore, this structure improves the reliability of the second door 3 after it is closed, enhancing safety for passengers.
[0026] The first connecting seat 5 is fixed to the door frame 1. The first connecting seat 5 includes an L-shaped mounting seat and a rib mounting seat for increasing strength. The rib mounting seat is welded and fixed to the door frame 1. The rib is fixed to the mounting seat to increase the strength of the mounting seat.
[0027] The first connecting rod 6 is movably connected with the first connecting seat 5, and in the embodiment, the first connecting seat 5 is preferentially hinged with the first connecting rod 6, so that the first connecting rod 6 can rotate relative to the first connecting seat 5.
[0028] One end of the second connecting rod 7 is movably connected with the first connecting rod 6, and the other end of the second connecting rod 7 is connected with the gangway 4 or the second door 3; the one end of the second connecting rod 7 is preferentially hinged with the first connecting rod 6, and the other end of the second connecting rod 7 is preferentially hinged with the gangway 4.
[0029] The utility model discloses still including first gas spring 9, first gas spring 9 is connected with the door frame 1, first gas spring 9 still is connected with first door 2.
[0030] The utility model discloses still including second connecting seat 8, second gas spring 10, second connecting seat 8 is fixed with the door frame 1, and second gas spring 10 is connected with second connecting seat 8, and second gas spring 10 is still connected with first connecting rod 6.
[0031] The utility model discloses still including fixed column 11, press impact lock 12, pressure block 13, unlocking drive part 14, fixed column 11 is fixed with the door frame 1, and fixed column 11 is cylindrical, and press impact lock 12 forms locking after impacting with fixed column 11, and press impact lock 12 preferentially adopts the built-in car use bump lock of Foshan Shengzhihua Hardware Co., Ltd.
[0032] The working process of the utility model is as follows:
[0033] When the need to open the sky and earth door, by unlocking the drive component 14 to remove the press impact lock 12 and fixed column 11 of the locking relationship, if the staff in the car, the first door 2 from the inside to the outside of the manual application of the first car door 2, if the staff outside the car, the first door 2 to the first door 2 to the top of the vehicle or to the sky direction of rotation, in the opening of the first door 2, the first door 2 will force transmission to the first gas spring 9, so that the first gas spring 9 work, the first door 2 open in the desired angle, the first gas spring 9 on the first door 2 generated support force (the opening of the first door 2 and the opening process of the passenger car trunk door is the same). The first door 2 is opened, the first door 2 to the second door 3 of the block is removed, the operator manually on the handle 6a applied to the outside of the car direction of the thrust, so that the first connecting rod 6 relative to the first connecting seat 5 rotation, the first connecting rod 6 driven second connecting rod 7 rotation, the second connecting rod 7 will power transmission to the second door 3, so that the second door 3 to the bottom of the vehicle or to the ground direction of rotation, the final second door 3 from the folding state to the unfolded state, so that the second door 3 open, open state see Figure 5 And Figure 7 Because the first door 2 and the second door 3 are in a fully open state, the staff can walk from the outside of the car to the inside of the car, or from the inside of the car to the outside of the car.
[0034] When the need to close the sky and earth door, the operator first on the handle 6a applied force, so that the second door 3 from the unfolded state to the folding state, and then on the first door 2 to the downward pressure or tension, so that the first door 2 from the open state to the closed state switch, because the first door 2 in the closed, the press impact lock 12 installed on the first door 2 and the fixed column 11 form a collision, so that the press impact lock 12 and the fixed column 11 form a locking state. The first door 2 is closed, the first door 2 to the second door 3 of the block, because the press impact lock 12 and the fixed column 11 to the first door 2 form a lock, so that in the case of not unlocking, even if the first door 2 to the thrust or tension, the first door 2 will not rotate, and thus the second door 3 of the closed state is guaranteed.
Claims
1. A RV door system, comprising a door frame (1), a first door (2), a second door (3), and a gangway (4), wherein the first door (2) is hinged to the door frame (1), the second door (3) is hinged to the door frame (1), the second door (3) is located below the first door (2), and the gangway (4) is mounted on the second door (3), characterized in that, Also includes: The first connecting seat (5) is fixed to the door frame (1); The first link (6) is movably connected to the first connecting seat (5), and the first link (6) is provided with a handle (6a); The second link (7) is connected at one end to the first link (6); the other end of the second link (7) is connected to the gangway (4) or the second door (3).
2. The off-road RV top and bottom door according to claim 1, characterized in that, The upper end of the first door (2) is hinged to the upper end of the door frame (1), and the lower end of the second door (3) is hinged to the lower end of the door frame (1). When the first door (2) and the second door (3) are closed, the lower end of the first door (2) blocks the upper end of the second door (3).
3. The off-road RV top and bottom door according to claim 2, characterized in that, The lower end of the first door (2) is fixed with a blocking part (2a), and the upper end of the second door (3) is fixed with a baffle (3a). The cross section of the baffle (3a) is L-shaped. When the blocking part (2a) and the baffle (3a) cooperate, the lower end of the first door (2) blocks the upper end of the second door (3).
4. The off-road RV top and bottom door according to claim 1, 2, or 3, characterized in that, It also includes a first gas spring (9), which is connected to the door frame (1) and is also connected to the first door (2).
5. The off-road RV top and bottom door according to claim 1, 2, or 3, characterized in that, It also includes a second connecting seat (8) and a second gas spring (10). The second connecting seat (8) is fixed to the door frame (1), the second gas spring (10) is connected to the second connecting seat (8), and the second gas spring (10) is also connected to the first connecting rod (6).
6. The off-road RV top and bottom door according to claim 1, characterized in that, Also includes: Fixed post (11), fixed post (11) is fixed to door frame (1); A press-impact lock (12) is formed after impacting the fixed post (11), and the press-impact lock (12) is fixed to the frame of the first door (2); A pressure block (13) that cooperates with the press-impact lock (12) is hinged to the press-impact lock (12); Unlock the drive component (14) and connect it to the pressure block (13).
7. The off-road RV top and bottom door according to claim 6, characterized in that, The unlocking drive component (14) is an electric push rod and / or cable.