A motor home heat insulation structure

Abstract

The utility model relates to the technical field of heat -insulation and heat -preservation structure discloses a house car heat -insulation and heat -preservation structure, including the carriage, the right side top of car's right side top is provided with automatic ventilation mechanism, the bottom right side fixedly connected with the connecting plate of car's bottom right side, the inner wall left side sliding connection with the extension box of car's inner wall left side, the outer wall of extension box is provided with buffer heat -insulation mechanism, the automatic ventilation mechanism includes filter box, the outer wall of filter box is connected in the outer wall right side top of car's, the inner wall front side sliding connection with the filter plate of filter box's inner wall right side, a plurality of louvers are rotationally connected to the inner wall right side of filter box. In the utility model, the wind resistance baffle is deflected by the airflow, the multiple louvers are synchronously rotated by the cylinder, the external airflow enters the carriage through the filter box, the external airflow flows at high speed on the surface of the conical exhaust pipe, the negative pressure is generated in the conical exhaust pipe, the suction force is generated, so that the heat in the cavity can be discharged in time.

Description

Technical Field

[0001] This utility model relates to the field of thermal insulation structure technology, and in particular to a thermal insulation structure for RVs. Background Technology

[0002] A thermal insulation structure for motorhomes is a functional component in motorhome design used to block heat exchange between the inside and outside of the vehicle and maintain a suitable interior temperature. It is widely used in various types of motorhomes, including self-propelled and towed vehicles. Its core function is to reduce the impact of the external environment on the interior temperature by combining materials and designing the structure of key parts such as the roof, side walls, and floor. At the same time, it reduces the energy consumption of the air conditioning temperature control equipment. It is an important component in improving the comfort and range of motorhomes. With the development of the motorhome camping industry, users' demand for stable interior temperature during long-distance travel is increasing, and thermal insulation structures have become one of the core indicators for measuring motorhome performance.

[0003] Early RV insulation structures used a single-material layer design, typically consisting of an inner decorative panel, a middle layer of fiberglass or polyurethane foam, and an outer metal skin. While this structure could achieve basic insulation through the low thermal conductivity of the materials themselves, it had significant drawbacks. Firstly, the insulation performance of a single material was limited, especially under strong sunlight in summer, where heat could easily be quickly conducted into the vehicle through the metal skin. Secondly, the lack of sealing and support between layers meant that vibrations during driving could cause the materials to loosen, creating gaps and allowing heat to leak out. Furthermore, airflow between layers would exacerbate heat exchange, further weakening the insulation effect. To address these issues, existing technologies have gradually developed composite layered structures. The existing structure includes a reflective film between the metal skin and the insulation layer to block radiant heat, and a slotted connection between the layers filled with sealing strips to reduce air convection. Some models also have a cavity insulation area in the roof to utilize the low thermal conductivity of air to form an additional heat insulation barrier. However, there is still room for improvement in the existing structure, especially the cavity insulation area in the roof. In summer, because the cavity is indirectly connected to the outside environment through the ventilation hole structure, the heat absorbed by the outer layer of the roof under direct sunlight will continue to be transferred into the cavity. The hot air in the cavity is difficult to expel quickly, causing the heat to gradually accumulate. This causes the insulation capacity of the cavity to decrease over time, and it may even become a heat conduction channel, ultimately resulting in the loss of heat insulation effect. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides a RV heat insulation structure, which aims to improve the problem in the prior art where hot air in the cavity is difficult to dissipate quickly, resulting in the gradual accumulation of heat and the decay of the cavity's heat insulation capacity over time.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a RV heat insulation structure, including a carriage, an automatic ventilation mechanism is provided at the top right side of the carriage, a connecting plate is fixedly connected to the bottom right side of the carriage, an expansion box is slidably connected to the left side of the inner wall of the carriage, and a buffer heat insulation mechanism is provided on the outer wall of the expansion box.

[0006] The automatic ventilation mechanism includes a filter box. The outer wall of the filter box is connected to the top right side of the outer wall of the carriage. A filter plate is slidably connected to the front side of the inner wall of the filter box. Multiple louvers are rotatably connected to the right side of the inner wall of the filter box. A cylinder is fixedly connected to the left side of the louvers. Wind baffles are rotatably connected to the outer walls of the multiple cylinders. The top of the wind baffles penetrates through the filter box. A communicating cavity is opened at the top of the carriage. A heat insulation plate is fixedly connected to the bottom of the communicating cavity. Multiple butterfly springs are fixedly connected to the top of the heat insulation plate. A conical exhaust pipe is connected to the left side of the top of the carriage. An intercepting plate is fixedly connected to the left side of the inner wall of the conical exhaust pipe. A locking component is provided at the rear of the filter box.

[0007] As a further description of the above technical solution:

[0008] The buffer and heat insulation mechanism includes a heat-insulating corrugated sleeve. The left side of the outer wall of the heat-insulating corrugated sleeve is fixedly connected to the left side of the outer wall of the expansion box. A grooved hollow frame is fixedly connected to the right side of the expansion box. Multiple magnetic blocks are fixedly connected to the inner wall of the grooved hollow frame. A limiting corrugated sleeve is fixedly connected to the left side of the limiting corrugated sleeve. A hollow metal ring is fixedly connected to the left side of the limiting corrugated sleeve. A support assembly is provided at the bottom of the vehicle body to ensure the stability of the RV. A door and window assembly is provided on the outer wall of the vehicle body. A steering assembly is provided on the front side of the connecting plate to move the RV. A shielding assembly is provided on the top left side of the connecting plate. A locking assembly is provided at the top center of the connecting plate.

[0009] As a further description of the above technical solution:

[0010] The locking assembly includes two limiting blocks, the outer walls of which are respectively fixedly connected to the rear side of the filter box and the wind barrier plate, and the inner wall of the top limiting block is threaded with a fixing bolt.

[0011] As a further description of the above technical solution:

[0012] The support assembly includes multiple hydraulic rods, the top ends of which are fixedly connected to the four corners of the bottom of the carriage, and one end of each hydraulic rod is fixedly connected to a pad.

[0013] As a further description of the above technical solution:

[0014] The door and window assembly includes a car door, with the front right side of the car door rotatably connected to the door, and windows are provided on both the left and right sides of the front top of the car body.

[0015] As a further description of the above technical solution:

[0016] The steering assembly includes a limiting rod, the outer wall of which is slidably connected to the front side of the connecting plate, and a universal wheel is rotatably connected to the bottom end of the limiting rod. A locking post is provided on the front inner wall of the connecting plate, and the outer wall of the locking post engages with the inner wall of the limiting rod.

[0017] As a further description of the above technical solution:

[0018] The shielding assembly includes an air conditioner outdoor unit, the bottom of which is fixedly connected to the top left side of the connecting plate, and a shielding canopy is fixedly connected to the bottom right side of the outer wall of the carriage.

[0019] As a further description of the above technical solution:

[0020] The engaging assembly includes an engaging block, the bottom end of which is fixedly connected to the top center of the connecting plate. An L-shaped locking plate is slidably connected to the right side of the inner wall of the engaging block, and a U-shaped limiting plate is fixedly connected to the top right side of the engaging block. A rotating block is rotatably connected to the inner wall of the U-shaped limiting plate, and a compression wrench is threadedly connected to the inner wall of the rotating block. The outer wall of the compression wrench engages with the inner wall of the L-shaped locking plate.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, the wind-powered baffle plate is deflected by the airflow, and the cylinder drives multiple louvers to rotate synchronously, adjusting the opening angle of the ventilation opening. The external airflow enters the carriage through the filter box, and the connecting cavity serves as a heat insulation buffer area. The heat insulation plate blocks the heat from the bottom from rising, and the butterfly spring provides elastic support to offset driving vibrations. When heat accumulates in the cavity, the external airflow flows at high speed on the surface of the conical exhaust pipe, causing negative pressure to appear in the conical exhaust pipe and generating suction. This allows the air that has passed through the filter box to be discharged from the conical exhaust pipe through the connecting cavity, thus allowing the heat in the cavity to be discharged in a timely manner.

[0023] 2. In this utility model, when the expansion box slides out from the left side of the inner wall of the carriage to expand the usable space, its outer wall heat-insulating corrugated sleeve stretches as it expands. The corrugated deformation absorbs the external impact force, and the heat-insulating material blocks the heat transfer at the connection between the expansion box and the carriage. After the expansion box is fully expanded, the hollow frame of the right groove aligns with the hollow metal ring on the left side of the carriage. The magnetic block in the groove is attracted and fixed to the metal ring to ensure the connection is sealed. The limiting corrugated sleeve shrinks when the expansion box is retracted, wrapping the connection structure and enhancing the heat insulation effect. Attached Figure Description

[0024] Figure 1 This is a perspective view of a thermal insulation structure for a motorhome proposed in this utility model;

[0025] Figure 2 This is a front view of a RV thermal insulation structure proposed in this utility model;

[0026] Figure 3 This is a cross-sectional view of a thermal insulation structure for a motorhome proposed in this utility model;

[0027] Figure 4 This is a split view of the filter box structure of a RV thermal insulation structure proposed in this utility model;

[0028] Figure 5 This is a split view of the connecting plate structure of the RV thermal insulation structure proposed in this utility model;

[0029] Figure 6 This is a schematic diagram of the locking component of a RV thermal insulation structure proposed in this utility model;

[0030] Figure 7 This is a structural exploded view of the buffer insulation mechanism of a RV thermal insulation structure proposed in this utility model.

[0031] Legend:

[0032] 1. Carriage; 2. Automatic ventilation mechanism; 201. Filter box; 202. Filter plate; 203. Louvered plate; 204. Windbreak plate; 205. Cylindrical; 206. Connecting cavity; 207. Heat insulation plate; 208. Butterfly spring; 209. Conical exhaust pipe; 210. Interception plate; 211. Locking assembly; 2111. Limiting block; 2112. Fixing bolt; 3. Buffer and heat insulation mechanism; 301. Heat insulation corrugated sleeve; 302. Grooved hollow frame; 303. Magnetic block; 304. Limiting corrugated sleeve; 3 05. Hollow metal ring; 4. Connecting plate; 5. Expansion box; 6. Support assembly; 601. Hydraulic rod; 602. Pad; 7. Door and window assembly; 701. Door; 702. Window; 8. Steering assembly; 801. Limiting rod; 802. Caster wheel; 803. Engaging column; 9. Shelter assembly; 901. Air conditioner outdoor unit; 902. Shelter canopy; 10. Engaging assembly; 1001. Engaging block; 1002. L-shaped clamping plate; 1003. U-shaped limiting plate; 1004. Rotating block; 1005. Crush wrench. Detailed Implementation

[0033] 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.

[0034] Reference Figure 1 , Figure 3 and Figure 4 An embodiment of this utility model is provided: a RV heat insulation structure, including a carriage 1, an automatic ventilation mechanism 2 is provided at the top right side of the carriage 1, a connecting plate 4 is fixedly connected to the bottom right side of the carriage 1, an expansion box 5 is slidably connected to the left side of the inner wall of the carriage 1, and a buffer heat insulation mechanism 3 is provided on the outer wall of the expansion box 5.

[0035] The automatic ventilation mechanism 2 includes a filter box 201. The outer wall of the filter box 201 is connected to the top right side of the outer wall of the carriage 1. A filter plate 202 is slidably connected to the front side of the inner wall of the filter box 201. External airflow enters the carriage 1 through the filter box 201. The filter plate 202 performs preliminary filtration of the air, intercepting dust and impurities. Multiple louvers 203 are rotatably connected to the right side of the inner wall of the filter box 201. A cylinder 205 is fixedly connected to the left side of the louvers 203. Wind baffles 204 are rotatably connected to the outer walls of the multiple cylinders 205. The top of the wind baffles 204 penetrates through the filter box 201. The wind baffles 204 are deflected by the airflow, which drives the multiple louvers 203 to rotate synchronously through the cylinders 205, adjusting the opening angle of the ventilation opening. When the airflow is strong, the opening of the louvers 203 increases to increase the ventilation volume; when the airflow is weak... When the opening is reduced, a connecting cavity 206 is provided at the top of the carriage 1. A heat insulation plate 207 is fixedly connected to the bottom of the connecting cavity 206. Multiple butterfly springs 208 are fixedly connected to the top of the heat insulation plate 207. The heat insulation plate 207 blocks the heat from the bottom to rise, while the multiple butterfly springs 208 offset the vibration of driving through elastic support, preventing the cavity structure from leaking heat due to the bumps. A conical exhaust pipe 209 is connected to the top left of the carriage 1. An intercepting plate 210 is fixedly connected to the left side of the inner wall of the conical exhaust pipe 209. The external airflow flows at high speed on the surface of the conical exhaust pipe 209, which causes a negative pressure to appear in the conical exhaust pipe 209, thereby generating suction. The air passing through the filter box 201 is discharged from the conical exhaust pipe 209 through the connecting cavity 206. A locking component 211 is provided on the rear side of the filter box 201.

[0036] The locking assembly 211 includes two limiting blocks 2111. The outer walls of the two limiting blocks 2111 are respectively fixedly connected to the rear side of the filter box 201 and the wind baffle 204. The inner wall of the top limiting block 2111 is threaded with a fixing bolt 2112. By screwing the fixing bolt 2112 into the corresponding screw holes of the two limiting blocks 2111, the relative position of the wind baffle 204 and the filter box 201 can be locked, maintaining the stability of the louver 203, so that the heat in the cavity can be discharged in time.

[0037] Specifically, when the RV is moving, the wind deflector 204 is deflected by the airflow, which drives multiple louvers 203 to rotate synchronously via the cylinder 205, adjusting the opening angle of the ventilation openings. When the airflow is strong, the louvers 203 open more to increase ventilation, and when the airflow is weak, they close less. Outside airflow enters the cabin 1 through the filter box 201, where the filter plate 202 performs preliminary filtration, intercepting dust and impurities. The connecting cavity 206 at the top of the cabin 1 serves as a heat insulation buffer area, and the heat insulation plate 207 blocks heat from rising from the bottom. Multiple butterfly springs 208 provide elastic support to offset vibrations during travel, preventing damage to the cavity structure due to [unclear - possibly a continuation of the previous sentence]. Bumps cause heat leakage through gaps. When heat accumulates in the cavity, the external airflow flows at high speed on the surface of the conical exhaust pipe 209, which in turn creates negative pressure in the conical exhaust pipe 209, generating suction. This allows the air passing through the filter box 201 to be discharged from the conical exhaust pipe 209 through the connecting cavity 206. When moving in winter, the louvered plate 203 needs to be closed, which can be achieved by locking the component 211: screwing the fixing bolt 2112 into the corresponding screw holes of the two limit blocks 2111 locks the relative position of the wind barrier plate 204 and the filter box 201, maintaining the stability of the louvered plate 203, so that the heat in the cavity can be discharged in time.

[0038] Reference Figure 1 , Figure 2 and Figure 7The buffer and heat insulation mechanism 3 includes a heat-insulating corrugated sleeve 301. The left side of the outer wall of the heat-insulating corrugated sleeve 301 is fixedly connected to the left side of the outer wall of the expansion box 5. A grooved hollow frame 302 is fixedly connected to the right side of the expansion box 5. Multiple magnetic blocks 303 are fixedly connected to the inner wall of the grooved hollow frame 302. A limiting corrugated sleeve 304 is fixedly connected to the left side of the carriage 1. A hollow metal ring 305 is fixedly connected to the left side of the limiting corrugated sleeve 304. When the expansion box 5 slides out from the left side of the inner wall of the carriage 1 to expand the usable space, the heat-insulating corrugated sleeve 301 on its outer wall stretches with the expansion action. The corrugated structure absorbs the external impact force through folding deformation, and at the same time, it uses its own heat-insulating material to block the connection between the expansion box 5 and the carriage 1. Heat transfer: After the expansion box 5 is fully extended, the hollow frame 302 in the groove on the right side aligns with the hollow metal ring 305 on the left side of the carriage 1. The magnetic block 303 in the groove is attracted and fixed to the metal ring to ensure a tight seal at the connection. The corrugated sleeve 304 retracts when the expansion box 5 is retracted, covering the exposed connection structure and further enhancing the heat insulation effect. A support component 6 is provided at the bottom of the carriage 1 to ensure the stability of the RV. A door and window component 7 is provided on the outer wall of the carriage 1. A steering component 8 is provided on the front side of the connecting plate 4 to move the RV. A shielding component 9 is provided on the top left side of the connecting plate 4. A locking component 10 is provided at the top center of the connecting plate 4.

[0039] Specifically, when the expansion box 5 slides out from the left side of the inner wall of the carriage 1 to expand the usable space, the heat-insulating corrugated sleeve 301 on its outer wall stretches with the expansion action. The corrugated structure absorbs the external impact force through folding deformation. At the same time, it uses its own heat-insulating material to block the heat transfer at the connection between the expansion box 5 and the carriage 1. After the expansion box 5 is fully expanded, the hollow frame 302 in the groove on the right side aligns with the hollow metal ring 305 on the left side of the carriage 1. The magnetic block 303 in the groove is attracted and fixed to the metal ring to ensure that the connection is sealed tightly. The limiting corrugated sleeve 304 shrinks when the expansion box 5 is retracted, covering the exposed connection structure and further enhancing the heat insulation effect. The support component 6 is used to ensure the stability of the RV. The door and window component 7 facilitates the basic ventilation and entry functions of the RV. The steering component 8 is used to move the RV. The shielding component 9 can prevent the air conditioner outdoor unit 901 from being damaged during driving and uses the locking component 10 to lock and fix the shielding canopy 902.

[0040] Reference Figure 1 and Figure 2The support assembly 6 includes multiple hydraulic rods 601, the top ends of which are fixedly connected to the four corners of the bottom of the vehicle body 1. One end of each hydraulic rod 601 is fixedly connected to a pad 602. When the support assembly 6 is activated, the hydraulic rods 601 extend synchronously from the four corners of the bottom of the vehicle body 1, pushing the pads 602 towards the ground until they are fully in contact with the ground and bear part of the weight of the vehicle body 1. The rigid support of the hydraulic rods 601 counteracts the unevenness of the ground caused by the RV. The shaking is prevented to ensure that the entire carriage 1 is in a horizontal and stable state; the door and window assembly 7 includes a door 701, which is rotatably connected to the front right side of the door 701. Windows 702 are opened on both the left and right sides of the front top of the carriage 1. The door and window assembly 7 realizes the connection and isolation between the inside and outside of the vehicle through the opening and closing action. The door 701 rotates around the rotation axis on the front right side. When it is open, it allows people to enter and exit. When it is closed, it is tightly sealed by the sealing strip between the door frame and the edge of the door 701 to block the air convection and heat exchange between the inside and outside of the vehicle.

[0041] Specifically, when the RV needs to be parked, the support assembly 6 activates, and the hydraulic rods 601 extend simultaneously from the four corners of the bottom of the vehicle body 1, pushing the bottom pad 602 closer to the ground until the pad 602 is completely in contact with the ground and bears part of the weight of the vehicle body 1. The rigid support of the hydraulic rods 601 counteracts the swaying of the RV caused by uneven ground, ensuring that the vehicle body 1 is in a level and stable state, while avoiding heat conduction caused by the bottom of the vehicle body 1 directly contacting the ground. When the RV is ready to move, the hydraulic rods 601 retract, causing the pad 602 to lift off the ground and retract to the bottom of the vehicle body 1, reducing... During driving, wind resistance and structural wear occur. The door and window assembly 7 achieves connection and isolation between the inside and outside of the vehicle through opening and closing. The door 701 rotates around the pivot on the right side of the front. When open, it allows people to enter and exit. When closed, it is tightly sealed by the sealing strip between the door frame and the edge of the door 701, blocking the air convection and heat exchange between the inside and outside of the vehicle. The windows 702 on the left and right sides of the top front of the compartment 1 can be opened by sliding or flipping. When open, they are used for ventilation. When closed, their double-glazed structure and sealing frame work together to provide heat insulation, reducing the impact of external temperature on the interior environment of the vehicle, while blocking dust and noise from entering.

[0042] Reference Figure 3 , Figure 5 and Figure 6The steering assembly 8 includes a limiting rod 801, the outer wall of which is slidably connected to the front side of the connecting plate 4. A universal wheel 802 is rotatably connected to the bottom end of the limiting rod 801. A locking post 803 is provided on the inner front wall of the connecting plate 4, the outer wall of which engages with the inner wall of the limiting rod 801. In the steering assembly 8, external force pushes the limiting rod 801 to slide left and right within a groove on the front side of the connecting plate 4, causing the universal wheel 802 at the bottom end to turn synchronously, thus achieving angle adjustment of the RV's front wheels; simultaneously, the locking post engages with the universal wheel 802. The column 803 and the inner wall of the limiting rod 801 are tightly engaged with the slot to ensure that the limiting rod 801 will not shift due to vibration or external force during the turning process; the shielding assembly 9 includes an air conditioner outdoor unit 901, the bottom end of which is fixedly connected to the top left side of the connecting plate 4, and a shield awning 902 is fixedly connected to the bottom right side of the outer wall of the carriage 1. In the shielding assembly 9, the air conditioner outdoor unit 901 is fixed to the top left side of the connecting plate 4, and the heat generated during operation is discharged through the heat dissipation vent; the shield awning 902 adopts a foldable or telescopic structure. When unfolded, it can shield the outdoor unit 901 from direct sunlight and rain, reducing the impact of ambient temperature on air conditioning efficiency; the locking assembly 10 includes a locking block 1001, the bottom end of which is fixedly connected to the top center of the connecting plate 4, an L-shaped locking plate 1002 is slidably connected to the right side of the inner wall of the locking block 1001, a U-shaped limiting plate 1003 is fixedly connected to the top right side of the locking block 1001, and a rotating block 1004 is rotatably connected to the inner wall of the U-shaped limiting plate 1003. A screw-on clamp 1005 is connected to the L-shaped clamp 1002. The outer wall of the clamp 1005 engages with the inner wall of the L-shaped clamp 1002. In the clamping assembly 10, one end of the shield 902 is engaged in the clamping block 1001. By sliding the L-shaped clamp 1002 along the right side of the inner wall of the clamping block 1001, the shield 902 is engaged with it. By rotating the clamp 1005, the L-shaped clamp 1002 is clamped in relation to the screw thread of the rotating block 1004 to prevent loosening or detachment during driving.

[0043] Specifically, in the steering assembly 8, an external force pushes the limiting rod 801 to slide left and right within the groove on the front side of the connecting plate 4, causing the universal wheel 802 at the bottom to turn synchronously, thus adjusting the angle of the RV's front wheels. Simultaneously, the engaging column 803 tightly engages with the groove on the inner wall of the limiting rod 801, ensuring that the limiting rod 801 will not shift due to vibration or external force during steering, guaranteeing the stability and reliability of the steering operation. In the shielding assembly 9, the air conditioner outdoor unit 901 is fixed to the top left side of the connecting plate 4, and the heat generated during operation is discharged through the heat dissipation vent. The shielding canopy 902 adopts a flexible design... The folding or telescopic structure, when unfolded, can shield the outdoor unit 901 from direct sunlight and rain, reducing the impact of ambient temperature on air conditioning efficiency and extending the service life of the outdoor unit. In the locking assembly 10, one end of the shield 902 is locked in the locking block 1001. By sliding the L-shaped locking plate 1002 along the right side of the inner wall of the locking block 1001, the shield 902 is locked in place. By rotating the compression wrench 1005, the L-shaped locking plate 1002 is compressed through the threaded relationship with the rotating block 1004, preventing loosening or detachment during operation.

[0044] Working principle: First, when the RV is in motion, the wind-blown baffle 204 is deflected by the airflow, which drives multiple louvers 203 to rotate synchronously via the cylinder 205, thereby adjusting the opening angle of the ventilation openings. When the airflow is strong, the opening of the louvers 203 increases to improve ventilation; when the airflow is weak, the opening of the louvers 203 decreases. Outside airflow enters the cabin 1 through the filter box 201. The filter plate 202 performs preliminary filtration of the air, intercepting dust and impurities. The connecting cavity 206 at the top of the cabin 1 serves as a heat insulation buffer area. The heat insulation plate 207 blocks the upward transfer of heat from the bottom. Multiple butterfly springs 208 provide elastic support to offset vibrations during travel. To prevent heat leakage caused by gaps in the cavity structure due to bumps, when heat accumulates in the cavity, the external airflow flows at high speed on the surface of the conical exhaust pipe 209, causing negative pressure in the conical exhaust pipe 209, which in turn generates suction, causing the air passing through the filter box 201 to be discharged from the conical exhaust pipe 209 through the connecting cavity 206. When the RV is moving in winter, if it is necessary to close the louver 203, it can be achieved by locking the component 211: screwing the fixing bolt 2112 into the corresponding screw holes of the two limit blocks 2111 can lock the relative position of the wind barrier plate 204 and the filter box 201, maintain the stability of the louver 203, and thus allow the heat in the cavity to be discharged in time.

[0045] Furthermore, through the buffer and heat insulation mechanism 3, when the expansion box 5 slides out from the left side of the inner wall of the carriage 1 to expand the usable space, the heat insulation corrugated sleeve 301 on its outer wall will stretch with the expansion action. With the fold deformation of the corrugated structure, the heat insulation corrugated sleeve 301 can absorb the external impact force. At the same time, with its own heat insulation material, it can block the heat transfer at the connection between the expansion box 5 and the carriage 1. After the expansion box 5 is fully expanded, the hollow frame 302 of the groove on its right side is aligned with the hollow metal ring 305 on the left side of the carriage 1. The magnetic block 303 in the groove is attracted and fixed to the metal ring, thereby ensuring that the connection part is tightly sealed. The limiting corrugated sleeve 304 will shrink when the expansion box 5 is retracted, wrapping the exposed connection structure, thereby further enhancing the heat insulation effect.

[0046] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model 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 utility model should be included within the protection scope of the present utility model.

Claims

1. A recreational vehicle thermal insulation structure, comprising a vehicle cabin (1), characterized in that: An automatic ventilation mechanism (2) is provided at the top right side of the carriage (1), a connecting plate (4) is fixedly connected to the bottom right side of the carriage (1), an expansion box (5) is slidably connected to the left side of the inner wall of the carriage (1), and a buffer heat insulation mechanism (3) is provided on the outer wall of the expansion box (5). The automatic ventilation mechanism (2) includes a filter box (201). The outer wall of the filter box (201) is connected to the top right side of the outer wall of the carriage (1). A filter plate (202) is slidably connected to the front side of the inner wall of the filter box (201). Multiple louvers (203) are rotatably connected to the right side of the inner wall of the filter box (201). A cylinder (205) is fixedly connected to the left side of the louver (203). Wind baffles (204) are rotatably connected to the outer walls of the multiple cylinders (205). The top of the filter box (201) is through the top of the compartment (1). A connecting cavity (206) is opened at the top of the compartment (1). A heat insulation plate (207) is fixedly connected to the bottom of the connecting cavity (206). A plurality of butterfly springs (208) are fixedly connected to the top of the heat insulation plate (207). A conical exhaust pipe (209) is connected to the top left of the compartment (1). An intercepting plate (210) is fixedly connected to the left side of the inner wall of the conical exhaust pipe (209). A locking component (211) is provided on the rear side of the filter box (201).

2. The recreational vehicle thermal insulation structure according to claim 1, wherein: The buffer insulation mechanism (3) includes a heat insulation corrugated sleeve (301). The outer left side of the heat insulation corrugated sleeve (301) is fixedly connected to the outer left side of the expansion box (5). A grooved hollow frame (302) is fixedly connected to the right side of the expansion box (5). Multiple magnetic blocks (303) are fixedly connected to the inner wall of the grooved hollow frame (302). A limiting corrugated sleeve (304) is fixedly connected to the left side of the carriage (1). A hollow metal ring (305) is fixedly connected to the left side of the limiting corrugated sleeve (304). A support component (6) is provided at the bottom of the carriage (1). The support component (6) is used to ensure the stability of the RV. A door and window component (7) is provided on the outer wall of the carriage (1). A steering component (8) is provided on the front side of the connecting plate (4). The steering component (8) is used to move the RV. A shielding component (9) is provided on the top left side of the connecting plate (4). A locking component (10) is provided at the top center of the connecting plate (4).

3. The recreational vehicle thermal insulation structure of claim 1, wherein: The locking assembly (211) includes two limiting blocks (2111), the outer walls of the two limiting blocks (2111) are respectively fixedly connected to the rear side of the filter box (201) and the wind barrier plate (204), and the inner wall of the top limiting block (2111) is threaded with a fixing bolt (2112).

4. The recreational vehicle thermal insulation structure according to claim 2, wherein: The support assembly (6) includes multiple hydraulic rods (601), the top ends of which are fixedly connected to the four corners of the bottom of the carriage (1), and a pad (602) is fixedly connected to one end of each hydraulic rod (601).

5. The recreational vehicle thermal barrier of claim 2, wherein: The door and window assembly (7) comprises a door (701), the front right side of the door (701) is rotationally connected with a door (701), the top left and right sides of the front of the carriage (1) are both provided with a window (702).

6. The recreational vehicle thermal barrier of claim 2, wherein: The steering assembly (8) comprises a limiting rod (801), the outer wall of the limiting rod (801) is slidably connected to the front side of the connecting plate (4), the bottom end of the limiting rod (801) is rotationally connected with a universal wheel (802), the front inner wall of the connecting plate (4) is provided with a clamping column (803), the outer wall of the clamping column (803) is clamped with the inner wall of the limiting rod (801).

7. The recreational vehicle thermal barrier of claim 2, wherein: The shielding assembly (9) comprises an air conditioner outdoor unit (901), the bottom end of the air conditioner outdoor unit (901) is fixedly connected to the top left side of the connecting plate (4), the outer wall right side bottom of the carriage (1) is fixedly connected with a shielding shed (902).

8. The recreational vehicle thermal barrier of claim 2, wherein: The clamping assembly (10) comprises a clamping block (1001), the bottom end of the clamping block (1001) is fixedly connected to the top middle of the connecting plate (4), the inner wall right side of the clamping block (1001) is slidably connected with an L-shaped clamping plate (1002), the top right side of the clamping block (1001) is fixedly connected with a U-shaped limiting plate (1003), the inner wall of the U-shaped limiting plate (1003) is rotationally connected with a rotating block (1004), the inner wall of the rotating block (1004) is threadedly connected with a extrusion wrench (1005), the outer wall of the extrusion wrench (1005) is clamped with the inner wall of the L-shaped clamping plate (1002).

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