A trailer house with a roof lifting mechanism
By designing a roof lifting mechanism and a dust removal system on the trailer caravan, the problems of wind resistance and cleaning of the roof canvas in strong wind and sandy environments have been solved, achieving space expansion, improved wind resistance, and automated cleaning.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU LIHENG INTELLIGENT MANUFACTURING TECHNOLOGY CO LTD
- Filing Date
- 2025-04-16
- Publication Date
- 2026-06-09
AI Technical Summary
The existing tarpaulin roofs of trailer caravans are difficult to clean and have poor wind resistance in strong winds or sandstorms, which affects their service life and maintenance costs.
A trailer caravan with a roof lifting mechanism was designed, which uses an electric push rod to drive the telescopic shell to expand the space, and is equipped with a dust removal mechanism that removes dust by spraying airflow through an air pump and metal pipes.
It improves the wind resistance of the telescopic shell and enables automated cleaning, reducing wind resistance and maintenance difficulty, and enhancing user comfort and safety.
Smart Images
Figure CN224335534U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of trailer caravan technology, specifically a trailer caravan with a roof lifting mechanism. Background Technology
[0002] A towable caravan is a mobile living device that is attached to a car via a hook, serving both as accommodation and transportation. Its core advantage lies in its flexibility in disassembly, allowing the main vehicle to be used independently. Common types include hardtop (highly insulated), folding (lightweight and easy to store), and five-wheeled (requires a dedicated pickup truck for towing, but offers more space). Standard configuration includes a bed, a simple kitchen, and a bathroom. Power is supplied by a 12V battery pack or external water and electricity from the campsite.
[0003] In modern travel trailer designs, some models feature a retractable roof, making the RV more flexible and versatile. When the roof is raised, users can cleverly place canvas material between the roof and the vehicle body, effectively expanding the interior space. However, while this design offers convenience, canvas material's wind resistance is often less than ideal. In strong winds, the canvas may be damaged, affecting the RV's lifespan and potentially leading to additional repair costs. Furthermore, when the RV is parked overnight in windy, dusty environments, the canvas-enclosed space often accumulates a significant amount of sand and dust. This dust not only affects the RV's appearance but also increases the difficulty of cleaning, making routine maintenance inconvenient. Utility Model Content
[0004] The purpose of this invention is to provide a trailer caravan with a roof lifting mechanism to solve the problems in the prior art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a towable caravan with a roof lifting mechanism, comprising a caravan body, a trailer part at the front end of the caravan body, a glass window installed on the side wall of the caravan body, a roof plate fixedly installed on the top of the caravan body, a roof assembly above the roof plate, the roof assembly including an electric push rod fixedly installed on the roof plate, a roof body fixedly installed at the upper end of the electric push rod, a telescopic shell between the roof body and the roof plate, and a dust removal mechanism installed on the roof body.
[0006] Preferably, the telescopic housing has mounting grooves on both its inner and outer walls, and a sealing strip is provided in the mounting grooves. Sliding feet are fixedly installed on the outer wall of the telescopic housing, and movable sliding grooves are provided on the inner wall of the telescopic housing. A protective cover is fixedly installed at the front end of the top cover body.
[0007] Preferably, the upper end of the telescopic housing is fixedly installed on the top cover body, and the lower end of the telescopic housing is fixedly installed on the top plate.
[0008] Preferably, the sliding support is slidably installed in the movable slide groove, the telescopic housings are slidably connected together by the cooperation of the sliding support and the movable slide groove, the top cover body is movably installed above the top cover body by an electric push rod, and the sealing strip is installed between the telescopic housings through the mounting groove.
[0009] Preferably, the dust removal mechanism includes a metal pipe movably installed inside the top cover body and an air pump fixedly installed inside the protective cover. One end of the metal pipe is provided with a return spring, and the other end of the metal pipe is fixedly installed with an armature block. An electromagnet is fixedly installed on one side of the armature block, and a flexible hose is provided between the metal pipe and the air pump.
[0010] Preferably, the top cover body has movable grooves on its four sides, and the metal pipe is movably installed in the top cover body through the movable grooves.
[0011] Preferably, one end of the hose is connected to a metal pipe, the other end of the hose is connected to an air pump, one end of the reset spring is connected to the bottom of the movable groove inside the top cover body, and the other end of the reset spring is connected to one end of the metal pipe.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] 1. In this application, the electric actuator, upon activation, drives the top cover assembly upwards, causing the sliding feet to slide within the movable grooves, thereby unfolding the telescopic shell. This expands the usable space of the RV. Once unfolded, the sealing strip effectively prevents cold air from entering the RV's interior. When the electric actuator retracts, the telescopic shell folds and collapses, reducing the vehicle's aerodynamic drag. Furthermore, compared to a canvas-enclosed space, the telescopic shell exhibits superior wind resistance.
[0014] 2. In this application, the air pump is activated when the telescopic housing retracts. After the air pump starts, a high-speed airflow is ejected through a nozzle at the bottom of the metal pipe, effectively removing dust from the outer wall of the telescopic housing. During the cleaning process, a return spring provides continuous tension to one end of the metal pipe and controls the periodic activation of the electromagnet. After the electromagnet is activated periodically, its reciprocating motion attracts the armature block at the other end of the metal pipe, causing the metal pipe to oscillate back and forth. This oscillation ensures that the airflow ejected from the nozzle is evenly directed towards the outer wall of the telescopic housing, thereby enhancing the cleaning effect. 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 partial structural schematic diagram of the present invention;
[0017] Figure 3 This is a schematic diagram of the top cover assembly of this utility model;
[0018] Figure 4 This utility model Figure 3 Enlarged view of point A in the middle;
[0019] Figure 5 This is a schematic diagram of the dust removal mechanism of this utility model.
[0020] Numbered in the diagram: 1. RV body; 2. Glass window; 3. Roof panel; 4. Trailer assembly; 5. Roof assembly; 501. Roof body; 502. Telescopic shell; 503. Electric push rod; 504. Sealing strip; 505. Sliding feet; 506. Mounting groove; 507. Movable slide; 6. Dust removal mechanism; 601. Return spring; 602. Metal pipe; 603. Hose; 604. Armature block; 605. Electromagnet; 607. Air pump; 608. Protective cover. Detailed Implementation
[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0022] like Figure 1 and Figure 2 As shown, this utility model provides a technical solution for a towable caravan with a roof lifting mechanism, including a caravan body 1, a trailer part 4 at the front end of the caravan body 1, a glass window 2 installed on the side wall of the caravan body 1, a roof plate 3 fixedly installed on the top of the caravan body 1, a roof assembly 5 above the roof plate 3, and a dust removal mechanism 6 installed on the roof body 501. The roof assembly 5 can expand the usable space of the caravan, and the usable space has good wind resistance. At the same time, the dust removal mechanism 6 can clean the outer wall of the enclosed space.
[0023] like Figure 2 , Figure 3 and Figure 4As shown, the top cover assembly 5 includes an electric push rod 503 fixedly installed on the top plate 3. The top cover body 501 is fixedly installed on the upper end of the electric push rod 503. A telescopic housing 502 is provided between the top cover body 501 and the top plate 3. The telescopic housing 502 has mounting grooves 506 on both its inner and outer walls. A sealing strip 504 is provided in the mounting groove 506. A sliding support foot 505 is fixedly installed on the outer wall of the telescopic housing 502. A movable sliding groove 507 is provided on the inner wall of the telescopic housing 502. A protective cover 608 is fixedly installed on the front end of the top cover body 501. The upper end of the telescopic housing 502 is fixedly installed on the top cover body 501, and the lower end of the telescopic housing 502 is fixedly installed on the top plate 3.
[0024] Specifically, when the electric push rod 503 is activated, it begins to perform its designed function, namely, moving the top cover assembly 5 upwards. This action allows the sliding support leg 505 to move smoothly within the movable groove 507, thereby triggering the unfolding process of the telescopic shell 502. Through this process, the usable space of the RV is significantly expanded, providing passengers with a more spacious and comfortable environment. After the telescopic shell 502 is fully unfolded, the sealing strip 504 can perform its sealing function, effectively preventing the intrusion of cold air from the outside, ensuring the warmth and comfort of the RV's interior. In addition, when the expanded space is no longer needed, the telescopic shell 502 can be easily folded up by retracting the electric push rod 503. This not only reduces wind resistance during vehicle operation, but also improves overall stability and safety because the telescopic shell 502 has better wind resistance than the traditional canvas-enclosed usable space.
[0025] like Figure 2 and Figure 5 As shown, the dust removal mechanism 6 includes a metal pipe 602 movably installed inside the top cover body 501 and an air pump 607 fixedly installed inside the protective cover 608. One end of the metal pipe 602 is provided with a return spring 601, and the other end of the metal pipe 602 is fixedly installed with an armature block 604. An electromagnet 605 is fixedly installed on one side of the armature block 604. A flexible hose 603 is provided between the metal pipe 602 and the air pump 607. Movable slots are opened on the four sides of the top cover body 501, and the metal pipe 602 is movably installed inside the top cover body 501 through the movable slots.
[0026] Specifically, when the telescopic housing 502 is retracted, the air pump 607 can be activated. Once activated, a high-speed airflow is ejected through the nozzle at the bottom of the metal pipe 602, thoroughly cleaning the dust accumulated on the outer wall of the telescopic housing 502. During the cleaning process, the return spring 601 provides a continuous pulling force to one end of the metal pipe 602, while simultaneously controlling the intermittent activation of the electromagnet 605. After intermittent activation, the electromagnet 605 reciprocates to attract the armature block 604 at the other end of the metal pipe 602, causing the metal pipe 602 to swing back and forth. This reciprocating swing of the metal pipe 602 ensures that the airflow ejected from the nozzle is more evenly distributed to the outer wall of the telescopic housing 502, thereby significantly improving the cleaning effect.
[0027] Working principle: When in use, the electric push rod 503 can be activated. After the electric push rod 503 is activated, it will drive the top cover assembly 5 to move upward, so that the sliding support 505 moves in the movable slide 507, unfolding the telescopic shell 502 and expanding the usable space of the RV. After the telescopic shell 502 is unfolded, the sealing strip 504 can play a sealing role to prevent cold air from entering the interior of the RV. At the same time, after the electric push rod 503 is retracted, the telescopic shell 502 can be folded together, reducing the wind resistance of the vehicle. Moreover, the telescopic shell 502 has better wind resistance than the usable space enclosed by canvas. Furthermore, when the telescopic housing 502 is retracted, the air pump 607 can be activated. After the air pump 607 is activated, a high-speed airflow will be ejected through the nozzle at the bottom of the metal pipe 602 to clean the dust on the outer wall of the telescopic housing 502. During the cleaning process, the return spring 601 will provide tension to one end of the metal pipe 602 and can control the electromagnet 605 to start intermittently. After the electromagnet 605 starts intermittently, it will reciprocate to attract the armature block 604 at the other end of the metal pipe 602, causing the metal pipe 602 to swing back and forth. During the reciprocating swing of the metal pipe 602, the airflow ejected from the nozzle will be evenly blown onto the outer wall of the telescopic housing 502, improving the cleaning effect.
[0028] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. A towable caravan with a roof lifting mechanism, comprising a caravan body (1), a trailer hitch (4) at the front end of the caravan body (1), a glass window (2) installed on the side wall of the caravan body (1), and a roof panel (3) fixedly installed on the top of the caravan body (1), characterized in that: A top cover assembly (5) is provided above the top plate (3). The top cover assembly (5) includes an electric push rod (503) fixedly installed on the top plate (3). A top cover body (501) is fixedly installed on the upper end of the electric push rod (503). A telescopic housing (502) is provided between the top cover body (501) and the top plate (3). A dust removal mechanism (6) is installed on the top cover body (501).
2. A trailer caravan with a roof lifting mechanism according to claim 1, characterized in that: The telescopic housing (502) has mounting grooves (506) on both its inner and outer walls. A sealing strip (504) is provided in the mounting groove (506). A sliding support foot (505) is fixedly installed on the outer wall of the telescopic housing (502). A movable sliding groove (507) is provided on the inner wall of the telescopic housing (502). A protective cover (608) is fixedly installed at the front end of the top cover body (501).
3. A trailer caravan with a roof lifting mechanism according to claim 2, characterized in that: The upper end of the telescopic housing (502) is fixedly installed on the top cover body (501), and the lower end of the telescopic housing (502) is fixedly installed on the top plate (3).
4. A trailer caravan with a roof lifting mechanism according to claim 3, characterized in that: The sliding support (505) is slidably installed in the movable slide groove (507). The telescopic housings (502) are slidably connected together by the sliding support (505) and the movable slide groove (507). The top cover body (501) is movably installed above the top cover body (501) by the electric push rod (503). The sealing strip (504) is installed between the telescopic housings (502) through the mounting groove (506).
5. A trailer caravan with a roof lifting mechanism according to claim 4, characterized in that: The dust removal mechanism (6) includes a metal pipe (602) movably installed in the top cover body (501) and an air pump (607) fixedly installed in the protective cover (608). One end of the metal pipe (602) is provided with a return spring (601), and the other end of the metal pipe (602) is fixedly installed with an armature block (604). An electromagnet (605) is fixedly installed on one side of the armature block (604). A flexible hose (603) is provided between the metal pipe (602) and the air pump (607).
6. A trailer caravan with a roof lifting mechanism according to claim 5, characterized in that: The top cover body (501) has movable slots on its four sides, and the metal pipe (602) is movably installed inside the top cover body (501) through the movable slots.
7. A trailer caravan with a roof lifting mechanism according to claim 6, characterized in that: One end of the hose (603) is connected to the metal pipe (602), and the other end of the hose (603) is connected to the air pump (607). One end of the reset spring (601) is connected to the bottom of the movable groove inside the top cover body (501), and the other end of the reset spring (601) is connected to one end of the metal pipe (602).