Pull type recreational vehicle

Abstract

The utility model discloses a pull type motor home which comprises a motor home body, the motor home body comprises more than two box bodies which are sequentially laid in the front-back direction, and in every two adjacent box bodies, the box body located on the rear portion can be contained in the box body located on the front portion so that all the box bodies can form a drawer structure which can stretch and retract in the front-back direction. The upper end surface of the box body is obliquely arranged downwards from front to back; when the two adjacent box bodies are unfolded front and back, the rear end of the box body located in the front and the front end of the box body located in the rear are arranged in an overlapped mode so as to form a waterproof sealing structure. The problems that a pull type motor home is large in size, inconvenient to transport, prone to water accumulation and poor in waterproof effect can be solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of recreational vehicles, and particularly relates to a trailer-type recreational vehicle. Background Art

[0002] As people's spiritual needs continue to increase, traveling has become a good place for people to relax. Due to the freedom of travel time, people are increasingly inclined to self-drive camping when traveling. RVs are a better way to travel for self-drive camping. RVs are basically divided into two types: self-propelled and trailer-type.

[0003] Some trailer RVs do not have furniture, toilets and other structures inside, and are only used to provide people with rest space. This can solve the problem of insufficient interior space of self-propelled RVs or cars when there are a large number of people at a low cost. However, these trailer RVs are generally large in size and inconvenient to transport.

[0004] For example, the Chinese utility model patent with application number CN201521081085.7 discloses a semi-trailer blood collection RV with retractable sides, including a chassis, a main compartment and an auxiliary compartment, and is provided with a telescopic box with an opening on one side. The side of the main compartment is provided with an opening that can accommodate the telescopic box. The opening of the telescopic box faces the main compartment and is connected to the main compartment in a drawer-like manner. Sealing strips are respectively provided around the opening side of the telescopic box, the periphery of the side opposite to the opening side, and the periphery of the opening of the main compartment.

[0005] The above patent can pull the telescopic box out from the main compartment to increase the space for use of the RV. When driving, the telescopic box is pushed into the main compartment to achieve the problem of large RV space and easy movement. A sealing strip is provided around it to prevent rainwater from entering the RV on rainy days.

[0006] However, in actual use, the overall volume of the main compartment and the auxiliary compartment is still large, which is inconvenient to transport by trailer. When it rains, rainwater is easily accumulated on the top of the telescopic box, and the rainwater is easy to overflow the sealing strip, causing water seepage inside the RV. Utility Model Content

[0007] The utility model aims to provide a trailer-type caravan, which can solve the problems of large size, inconvenient transportation, easy water accumulation and poor waterproof effect of the trailer-type caravan.

[0008] The technical solutions adopted to solve the above technical problems are:

[0009] The utility model discloses a trailer type RV, comprising a RV body, wherein the RV body comprises more than two boxes sequentially laid along the front-to-back direction, and in two adjacent boxes, the box located at the rear can be stored in the box located at the front, so that all the boxes can form a drawer structure that can be telescopically moved forward and backward;

[0010] The upper end surface of the box body is arranged to be inclined downward from front to rear;

[0011] The RV body is configured such that, when two adjacent boxes are unfolded front and rear, the rear end of the box located in the front and the front end of the box located in the rear are overlapped to form a waterproof sealing structure.

[0012] The utility model has at least the beneficial effect that the RV body has an expanded state and a contracted state. When the RV body is in the expanded state, all the boxes can be stretched and expanded in the front-rear direction, so that the volume of the RV body and the internal space are stretched and enlarged, providing people with sufficient rest space and activity space.

[0013] When the RV body changes from an expanded state to a collapsed state, people can sequentially store the boxes at the rear into the adjacent front boxes until all other boxes are stored in the box at the front. This reduces the size of the RV body to the size of the box at the front, greatly reducing the size of the trailer RV and facilitating its transportation and parking.

[0014] The upper end surface of the box is tilted downward from front to back, so that the box forms a slope with a high front end and a low rear end, which is convenient for guiding rainwater dripping on it to flow backward and downward, preventing rainwater from accumulating on the upper end surface of the box, breeding mosquitoes, and continuous erosion of the surface of the box by rainwater.

[0015] When two adjacent boxes are unfolded to each other, the two boxes are overlapped, and the sealing structure formed by the overlapping part blocks rainwater, preventing rainwater from seeping into the interior of the RV body through the gap between the two adjacent boxes, thereby improving the waterproof effect of the trailer RV.

[0016] As a further improvement of the above technical solution, in the two adjacent boxes, the rear end of the box located in the front is provided with a rear opening, and a guard edge extends inward from the edge of the rear opening, and the front end of the box located in the rear passes through the rear opening and has a water retaining member extending outward, and the water retaining member is located in front of the guard edge, and the sealing structure is configured such that when the two adjacent boxes are unfolded front and back, the water retaining member and the guard edge abut to form the sealing structure.

[0017] Through the above arrangement, among the two adjacent boxes, the box located at the rear can pass through the rear opening to enter and exit the box located at the front, so as to realize the telescopic function of the RV body.

[0018] A retaining edge extends inwardly from the rear opening. If rainwater flows inwardly along the rear opening into the box, the rainwater can be blocked by the retaining edge and flow downward; a water retaining member extends outwardly from the front end of the box at the rear. When the rain is heavy and rainwater accumulates on the upper end surface of the box, the rainwater can be blocked by the water retaining edge to prevent the rainwater from overflowing the front end of the box and entering the box.

[0019] The water retaining member is located in front of the retaining edge. When two adjacent boxes are unfolded front and back, the water retaining member and the retaining edge can abut against each other to form a sealing structure to prevent rainwater from seeping into the RV body. The water retaining member and the retaining edge can also serve as a limiting structure for the unfolding of the two adjacent boxes front and back. The abutment between the water retaining member and the retaining edge limits the maximum length of the two adjacent boxes to unfold to each other, ensuring that the front end of the box at the rear is always stuck in the box at the front, and the two adjacent boxes are firmly connected.

[0020] As a further improvement of the above technical solution, a sealing member is provided between the retaining edge and the water retaining member.

[0021] Through the above arrangement, when two adjacent boxes are unfolded and the retaining edge and the water retaining member abut against each other, the sealing member is tightly abutted against the retaining edge and the water retaining member respectively, preventing rainwater from overflowing the water retaining member and entering the RV body through the gap between the water retaining member and the retaining edge, thereby further increasing the waterproof ability between the two adjacent boxes.

[0022] As a further improvement of the above technical solution, the sealing member includes a sleeve portion and an abutment portion which are connected to each other, the sleeve portion is sleeved on the retaining edge or the water retaining member, and the abutment portion is located between the retaining edge and the water retaining member.

[0023] Through the above arrangement, taking the sleeve part being sleeved on the retaining edge as an example, when two adjacent boxes are unfolded to each other, the retaining edge is sleeved with the sleeve part, and the abutting part connected to the sleeve part abuts against the water retaining part to seal the gap between the water retaining part and the retaining edge, thereby realizing the function of preventing rainwater from seeping through.

[0024] As a further improvement of the above technical solution, the rear end of the box body located at the front is connected to a first door frame, the rear opening and the guard edge are arranged on the first door frame, and the rear end of the box body located at the rear is connected to a second door frame, and the RV body is configured such that when all the boxes are retracted forward and backward, the second door frame is embedded in the rear opening of the first door frame and abuts against the guard edge.

[0025] Through the above arrangement, when the RV body is in the retracted state, the second door frame is embedded in the first door frame, and the upper end surface of the second door frame can be shielded by the first door frame, thereby reducing the amount of rainwater spilling on the upper end of the second door frame. The second door frame is in contact with the retaining edge, and since the second door frame is connected to the box located at the rear, the second door frame can be used to limit the length of the box located at the rear entering the box located at the front, thereby preventing the box located at the rear from colliding with the adjacent box in front of it, and the retaining edge of the box located at the front can also be used to block rainwater from flowing into the gap between the first door frame and the second door frame, thereby preventing water from entering the RV body.

[0026] As a further improvement of the above technical solution, the second door frame is provided with a vehicle door opening connected front and rear, the second door frame is rotatably connected to the vehicle door and the rotation axis extends in the left and right direction, and the vehicle door is configured so that when the vehicle door is rotated and closed relative to the second door frame, the vehicle door rotates along the rotation axis and is engaged with the vehicle door opening.

[0027] When the door is rotated to open relative to the second door frame, people can enter and exit the RV body through the door; when the door is rotated to close relative to the second door frame, the door rotates and fits into the door opening of the second door frame to reduce rainwater from flowing in and accumulating at the upper end of the door.

[0028] As a further improvement of the above technical solution, the second door frame extends inwardly along the vehicle door opening, and the limiting member is sleeve-connected with the sealing member. The limiting member is configured so that when the vehicle door is rotated and engaged with the vehicle door opening, the abutting portion abuts between the limiting member and the vehicle door.

[0029] Through the above arrangement, the limiter extending inwardly along the door opening can make rainwater flowing in along the door opening flow downward. When the door is rotated and engaged with the door opening, the limiter sleeves the sleeve portion of the seal, and the abutting portion abuts against the door, which can effectively prevent rainwater from flowing into the RV body through the gap between the door opening and the door. In addition, the seal can also be used to buffer the impact when the door is rotated downward, reducing the collision between the door and the second door frame.

[0030] As a further improvement of the above technical solution, the second door frame is connected to a first rotating shaft, and the vehicle door is connected to a second rotating shaft. In the left-right projection, the first rotating shaft and the second rotating shaft are both spirally rotating inward. The end of the second rotating shaft away from the vehicle door rotates around the first rotating shaft, and the first rotating shaft is connected to waterproof baffles on opposite sides along the left-right direction.

[0031] Through the above arrangement, the centripetal end of the second rotating shaft is wound inside the first rotating shaft, which not only realizes the relative rotation of the first rotating shaft and the second rotating shaft, but also prevents rainwater from flowing into the gap between the first rotating shaft and the second rotating shaft. The waterproof baffle can prevent rainwater from entering the first rotating shaft from the left and right sides of the first rotating shaft, so that the first rotating shaft and the second rotating shaft rotating therein remain dry, avoid rainwater accumulation, and prevent the first rotating shaft and the second rotating shaft from being continuously corroded by rainwater and oxidized and rusted.

[0032] As a further improvement of the above technical solution, the trailer caravan further comprises a telescopic support rod, the opposite ends of which are respectively hinged to the vehicle door and the second door frame. The support rod is used to support the vehicle door to be opened relative to the second door frame and to make the door more stable when opened.

[0033] As a further improvement of the above technical solution, the upper end surface of the box body and the connected left end surface and right end surface are chamfered.

[0034] Through the above arrangement, the chamfered box can allow rainwater flowing on the upper end surface of the box to flow downward to the ground along the connected left and right end surfaces, thereby accelerating the outflow of rainwater, preventing rainwater accumulation, and reducing rainwater flowing from front to back to the adjacent box located at the rear. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0036] Figure 1 It is a schematic diagram of the overall structure of the trailer caravan provided by the embodiment of the utility model in an unfolded state;

[0037] Figure 2 It is a schematic diagram of an enlarged structure in which a first box body and a second box body overlap each other provided by an embodiment of the utility model;

[0038] Figure 3 It is a schematic diagram of an enlarged structure of the overlap of the second box body and the third box body provided by an embodiment of the utility model;

[0039] Figure 4 It is an enlarged structural schematic diagram of the second door frame and the vehicle door provided by the embodiment of the utility model when they are relatively opened;

[0040] Figure 5 It is a schematic diagram of the overall structure of the trailer caravan provided by an embodiment of the utility model in a retracted state.

[0041] The following are marked in the accompanying drawings:

[0042] 100. RV body;

[0043] 200, first box body; 210, first rear opening; 220, first retaining edge; 230, first door frame;

[0044] 300, second box body; 310, second rear opening; 320, first water retaining member; 330, second retaining edge;

[0045] 400, third box; 410, second water retaining member; 420, second door frame; 421, first rotating shaft; 430, vehicle door; 440, limiting member;

[0046] 500, sealing member; 510, sleeve portion; 520, abutment portion;

[0047] 600, vehicle door; 610, second rotating shaft; 620, supporting rod. DETAILED DESCRIPTION

[0048] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0049] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0050] In the description of the utility model, if there is a word description such as "several", it means one or more, and the meaning of "more" is two or more. Greater than, less than, and more than are understood to exclude the number itself, and above, below, and within are understood to include the number itself. If there is a description of the first, second, and third, it is only used to distinguish the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0051] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0052] Reference Figures 1 to 5 , several embodiments of a trailer-type caravan of the utility model are given below.

[0053] like Figures 1 to 5As shown, a trailer RV of an embodiment of the utility model includes an RV body 100, and the RV body 100 includes more than two boxes arranged in sequence along the front and rear directions. Among the two adjacent boxes in the front and rear directions, the box located at the rear can be stored in the box located at the front, so that all the boxes can form a drawer structure that can be telescopic front and back.

[0054] It can be understood that the RV body 100 can be folded and contracted to the size of only the box located at the front. When the trailer RV is connected to a car or a self-propelled RV, the trailer RV can be easily towed and transported; the RV body 100 can also be unfolded and stretched to the size of all the boxes connected front and back. At this time, the RV body 100 can provide people with a larger rest space and activity space, solving the problem of insufficient rest space in self-propelled RVs or cars.

[0055] In this embodiment, the RV body 100 includes three boxes, namely, a first box 200, a second box 300 and a third box 400 arranged in sequence from front to back. Figure 1 As shown, the third box 400 can be received in the second box 300 , and the second box 300 can be received in the first box 200 .

[0056] Furthermore, the upper end surface of each box body is tilted downward from front to back.

[0057] With such an arrangement, rainwater dripping on the upper end surface of the box body is affected by gravity and guided by the inclined upper end surface to flow backward and downward, causing the rainwater to flow quickly backward and downward to the ground, preventing rainwater from accumulating on the upper end surface of the box body, resulting in excessive accumulation of rainwater and seepage from the gap between two adjacent boxes.

[0058] Furthermore, in the two adjacent boxes, the rear end of the box located in the front is overlapped with the front end of the box located in the rear to form a waterproof sealing structure, which further prevents rainwater from seeping into the trailer RV through the gap between the two adjacent boxes.

[0059] In this embodiment, the waterproof sealing structure includes a retaining edge and a water retaining member.

[0060] Specifically, taking the adjacent first box 200 and the second box 300 as an example, the first box 200 is located in front of the second box 300. The rear end of the first box 200 is provided with a first rear opening 210, such as Figure 2 As shown, the second box body 300 can enter and exit the first box body 200 through the first rear opening 210 to achieve the telescopic function of two adjacent boxes.

[0061] It can be understood that the first box body 200 has a first rib 220 extending inwardly along the edge of the first rear opening 210. Figure 2Specifically, a first rib 220 is extended downward from the inner top surface of the first rear opening 210, a first rib 220 is extended rightward from the inner left surface of the first rear opening 210, and a first rib 220 is extended leftward from the inner right surface of the first rear opening 210, and the left end and the right end of the first rib 220 located at the top are respectively connected to the first rib 220 located at the left and the first rib 220 located at the right, and in the projection in the front-to-back direction, the first rib 220 is in an inverted shape.

[0062] It is understandable that the front end of the second box body 300 extends outwardly with a first water retaining member 320, such as Figure 2 Specifically, the outer top surface of the front end of the second box body 300 extends upward to provide a first water retaining member 320, the outer left surface of the front end of the second box body 300 extends to the left to provide a first water retaining member 320, and the outer right surface of the front end of the second box body 300 extends to the right to provide a first water retaining member 320, and the left end and the right end of the first water retaining member 320 located at the top are respectively connected to the first water retaining member 320 located on the left and the first water retaining member 320 located on the right, and in the projection in the front-to-back direction, the first retaining edge 220 is inverted.

[0063] It is understandable that the first water retaining member 320 is always located in the first box body 200, that is, the first water retaining member 320 is located in front of the first retaining edge 220. When the RV body 100 is in the unfolded state, the rear end face of the first water retaining member 320 abuts against the front end face of the first retaining edge 220.

[0064] Since the first water retaining member 320 is located in front of the first retaining edge 220, when the first box body 200 and the second box body 300 are relatively unfolded, the first water retaining member 320 of the second box body 300 is driven to move backward, and when the rear end of the first water retaining member 320 abuts against the front end of the first retaining edge 220, the first box body 200 and the second box body 300 are in the maximum space in which the two can be unfolded.

[0065] When the first box body 200 and the second box body 300 are in the unfolded state and are located outdoors in the rain, rainwater dripping between the first box body 200 and the second box body 300 is first blocked by the first retaining edge 220 and then blocked by the first water retaining member 320, thereby preventing rainwater from penetrating into the interior of the RV body 100.

[0066] Similarly, in the adjacent second box body 300 and the third box body 400, the rear end of the second box body 300 is connected to a second rear opening 310, such as Figure 3 As shown, the third box body 400 can enter and exit the second box body 300 through the second rear opening 310. The second box body 300 has a second retaining edge 330 extending inwardly along the edge of the second rear opening 310, and the front end of the third box body 400 has a second water retaining member 410 extending outwardly, as shown in FIG. Figure 3As shown, in the projection in the front-to-back direction, the second retaining edge 330 and the second water retaining member 410 correspond to each other front to back and are both in an inverted shape.

[0067] It can be understood that the second water retaining member 410 is always located in the second box body 300, that is, the second water retaining member 410 is located in front of the second retaining edge 330. When the RV body 100 is in the expanded state, the rear end face of the second water retaining member 410 abuts against the front end face of the second retaining edge 330. At this time, the second box body 300 and the third box body 400 are in the maximum space where the two can be expanded.

[0068] Furthermore, a sealing member 500 is provided between the retaining edge and the water retaining member, such as Figure 3 When two adjacent boxes are in the unfolded state, the retaining edge and the water retaining member abut against each other, and at this time, the front and rear ends of the sealing member 500 abut against the water retaining member and the retaining edge respectively to prevent rainwater from penetrating into the RV body 100 through the gap between the water retaining member and the retaining edge, thereby improving the waterproof performance of the RV body 100.

[0069] In this embodiment, the sealing member 500 includes a sleeve portion 510 and an abutting portion 520, and the sleeve portion 510 and the abutting portion 520 are connected to each other. Figure 2 and Figure 3 As shown. The sleeve portion 510 is used to sleeve the retaining edge or the water retaining member, so that the sealing member 500 can be stably connected with the retaining edge or the water retaining member. If the sleeve portion 510 is sleeved on the retaining edge, the abutting portion 520 can abut the water retaining member when the two adjacent boxes are in the unfolded state, ensuring that the sealing member 500 isolates rainwater, and rainwater cannot pass through the gap between the retaining edge and the water retaining member that are tightly abutted against the sealing member 500, thereby preventing rainwater from seeping into the RV body 100.

[0070] It can be understood that the sleeve portion 510 and the abutment portion 520 are vertically connected. Specifically, the sleeve portion 510 is provided with a sleeve opening. Since the sleeve portion 510 is sleeved on the rib or the water retaining member, the sleeve opening of the sleeve portion 510 is arranged along the extension direction of the rib or the water retaining member. Since the water retaining member is located in front of the rib, the abutment portion 520 is extended in the forward and backward directions along one side of the sleeve portion 510 close to the rib and the water retaining member. When the sleeve portion 510 is sleeved on the rib, the abutment portion 520 extends in the direction close to the water retaining member, that is, the abutment portion 520 is extended forward, such as Figure 3 When the sleeve portion 510 is sleeved on the water retaining member, the abutting portion 520 extends toward the direction close to the retaining edge, that is, the abutting portion 520 extends backward, as shown in FIG. Figure 2 shown.

[0071] In this embodiment, the sealing member 500 is located between the first box body 200 and the second box body 300, and its sleeve portion 510 is sleeved on the first water retaining member 320, and the abutting portion 520 extends backward and abuts against the first retaining edge 220 when the first box body 200 and the second box body 300 are in the unfolded state. Figure 2 shown.

[0072] The sealing member 500 is located between the second box body 300 and the third box body 400, and its sleeve portion 510 is sleeved on the second retaining edge 330, and the abutting portion 520 extends forward and abuts against the second water retaining member 410 when the second box body 300 and the third box body 400 are in the unfolded state. Figure 3 shown.

[0073] It is understandable that an adhesive such as waterproof glue may be added into the sleeve opening to achieve a stable connection between the sleeve portion 510 and the retaining edge or water retaining member.

[0074] It is understandable that the sealing member 500 can be made of a sealing material with elasticity and deformation ability such as rubber and silicone to effectively seal the gap between the retaining edge and the water retaining member.

[0075] In this embodiment, the sleeve portion 510 and the abutting portion 520 are integrally formed.

[0076] It can be understood that the rear end of the first box body 200 is connected to the first door frame 230, and the first rear opening 210 and the first retaining edge 220 are both provided on the first door frame 230. Figure 2 The rear end of the third box body 400 is connected to a second door frame 420, as shown in FIG. Figure 4 When the RV body 100 is in the retracted state, the second door frame 420 is embedded in the first rear opening 210 of the first door frame 230 , and the front end surface of the second door frame 420 abuts against the rear end surface of the first retaining edge 220 .

[0077] In this way, the first retaining edge 220 can be used to prevent rainwater from entering the RV body 100. When the second door frame 420 and the first retaining edge 220 are in contact, the rear end face of the second door frame 420 and the rear end face of the first door frame 230 are in the same vertical plane, and the upper end face of the second door frame 420 is shielded by the first door frame 230 to prevent rainwater from dripping or accumulating on the upper end face of the second door frame 420.

[0078] Furthermore, a waterproof component is connected to the front end face of the second door frame 420 along its edge. When the RV body 100 is in a retracted state, the waterproof component abuts against the rear end face of the first retaining edge 220 to prevent rainwater from penetrating into the RV body 100 from between the second door frame 420 and the first retaining edge 220 .

[0079] It is understandable that the first box 200 and the first door frame 230, and the third box 400 and the second door frame 420 can be relatively fixed by welding, integral molding, etc., which are not specifically limited here. However, in this embodiment, in order to ensure the waterproof effect of the two, the nailing connection is not used to prevent rainwater from entering the interior of the RV body 100 through the screw holes.

[0080] Further, the second door frame 420 is connected to a vehicle door 430, and the second door frame 420 located at the upper end of the vehicle door 430 is rotatably connected to the vehicle door 600, such as Figure 4 As shown, people can enter and exit the RV body 100 from the door 430 by rotating the opened door 600. The rotation axis of the second door frame 420 and the door 600 extends in the left-right direction. When the door 600 is turned relative to the second door frame 420, the door 600 can rotate upward or downward with the rotation axis as the rotation axis. When the door 600 rotates upward, the door 430 is exposed, and people can enter and exit the RV body 100; when the door 600 rotates downward, it is embedded in the door 430, and the door 600 covers the door 430. The rear end face of the door 600 is in the same vertical plane as the rear end face of the second door frame 420, preventing the upper end of the door 600 from being exposed outside the second door frame 420, and rainwater from accumulating on the upper end face of the door 600. This can make the rear end face of the third box 400 relatively flat.

[0081] It is understandable that the second door frame 420 extends inwardly along the vehicle door opening 430 to limit the position of the limiting member 440. Figure 4 Specifically, the limiting member 440 extends from the left side of the door 430 to the right, the limiting member 440 extends from the right side of the door 430 to the left, the limiting member 440 extends downward from the top surface of the door 430, and the limiting member 440 extends upward from the bottom surface of the door 430. The left and right ends of the limiting member 440 located at the top are respectively connected to the upper end of the limiting member 440 located at the left and the upper end of the limiting member 440 located at the right, and the left and right ends of the limiting member 440 located at the bottom are respectively connected to the lower end of the limiting member 440 located at the left and the lower end of the limiting member 440 located at the right. In the projection in the front-to-back direction, the limiting member 440 is in the shape of a mouth.

[0082] In this way, the limit member 440 is located at the front end of the vehicle door 430. When the vehicle door 600 is rotated and engaged with the vehicle door 430, the front end of the vehicle door 600 abuts against the rear end of the limit member 440, preventing the vehicle door 600 from continuing to rotate downward and entering the third box body 400. In addition, when rainwater flows in from the gap between the vehicle door 600 and the vehicle door 430, the limit member 440 is also used to block the rainwater and intercept the rainwater between the limit member 440 and the vehicle door 600 to prevent the rainwater from flowing into the RV body 100.

[0083] It is understandable that the stopper 440 is provided with a sealing member 500. Figure 4 As shown, rainwater is further prevented from seeping in. Specifically, the sleeve portion 510 is sleeved on the limiting member 440, and the abutting portion 520 extends backward. When the vehicle door 600 rotates downward, the vehicle door 600 and the abutting portion 520 abut against each other.

[0084] Furthermore, the vehicle door 600 and the second door frame 420 are used to realize a waterproof setting of the rotating structure of the rotation connection. Specifically, the rotating structure includes a first rotating shaft 421 and a second rotating shaft 610 that are rotatably connected. In the left-right projection, the first rotating shaft 421 is a spiral that rotates inwards, and the distal end of the first rotating shaft 421 is connected to the second door frame 420. The second rotating shaft 610 is also a spiral that rotates inwards, and the distal end of the second rotating shaft 610 is connected to the vehicle door 600. Figure 4 shown.

[0085] It is understandable that the spiral direction of the first rotating shaft 421 is equal to the spiral direction of the second rotating shaft 610, and the centripetal end of the second rotating shaft 610 can be rotatably arranged in the first rotating shaft 421, so as to realize the relative rotation of the vehicle door 600 and the second door frame 420, and also make the rotation installation of the first rotating shaft 421 and the second rotating shaft 610 easier. Since the first rotating shaft 421 and the second rotating shaft 610 both extend in the left-right direction, that is, the first rotating shaft 421 and the second rotating shaft 610 can rotate relative to each other around the axis extending left-right.

[0086] It is understandable that the first rotating shaft 421 and the second rotating shaft 610 can both be clockwise centripetal spirals or counterclockwise centripetal spirals. In this embodiment, the distal end of the first rotating shaft 421 connected to the second door frame 420 extends in a direction close to the second door frame 420, and the distal end of the first rotating shaft 421 is connected to the second door frame 420 at the highest point of the first rotating shaft 421, so that when rain drops on the second door frame 420 or the first rotating shaft 421, the rain can directly flow along the second door frame 420 to the first rotating shaft 421, and then drip downward along the lower end of the outer arc of the first rotating shaft 421, so as to prevent rain from flowing into between the first rotating shaft 421 and the second rotating shaft 610. The distal end of the second rotating shaft 610 connected to the vehicle door 600 extends in a direction close to the vehicle door 600, and the distal end of the second rotating shaft 610 is also connected to the vehicle door 600 at a high point.

[0087] Furthermore, in order to prevent rainwater from entering the first rotating shaft 421 from the rotation gap between the left and right ends of the first rotating shaft 421, waterproof baffles are connected to the left and right ends of the first rotating shaft 421. Specifically, the left and right lengths of the first rotating shaft 421 are greater than the left and right lengths of the second rotating shaft 610, ensuring that the waterproof baffles are both waterproof and do not affect the relative rotation of the second rotating shaft 610 and the first rotating shaft 421. The two waterproof baffles seal the left and right ends of the first rotating shaft 421, ensuring that the first rotating shaft 421 and the second rotating shaft 610 located inside the first rotating shaft 421 are dry and tidy. When the car door 600 is rotated and opened relative to the second door frame 420, when the rainwater flows into the upward angle formed between the car door 600 and the second door frame 420, the rainwater can flow from the left and right ends of the second rotating shaft 610 to the ground, preventing the rainwater from accumulating and spreading into the first rotating shaft 421, causing the rotating structure to oxidize and rust.

[0088] In other embodiments, the first rotating shaft 421 and the second rotating shaft 610 are both in the shape of a circular tube. The first rotating shaft 421 is hollow and has a sliding groove connecting the inside and the outside along its radial end face. There may be multiple sliding grooves and they are laid out at intervals along the left and right directions. The second rotating shaft 610 is located in the first rotating shaft 421. The connecting end of the second rotating shaft 610 and the vehicle door 600 is located in the sliding groove, and it can rotate relative to the second door frame 420 along the axis extending left and right along the sliding groove, so that rainwater cannot enter the first rotating shaft 421 and the second rotating shaft 610, thereby preventing the rotating structure from rusting and causing the second door frame 420 and the vehicle door 600 to be unable to rotate the switch.

[0089] It is understandable that a retractable support rod 620 is provided between the second door frame 420 and the door 600, and the opposite ends of the support rod 620 are respectively hingedly connected to the second door frame 420 and the door 600. When the second door frame 420 and the door 600 are rotated to open, the support rod 620 changes from a contracted state to an extended state, and when the second door frame 420 and the door 600 are rotated to close, the support rod 620 changes from an extended state to a contracted state. The support rod 620 can make the door 600 open and close more smoothly, and can support the door 600 after the door 600 is opened, keep the door 600 in an open state, and facilitate people to enter and exit the RV body 100. In this embodiment, the support rod 620 is a hydraulic rod.

[0090] Furthermore, the rear end of the upper end surface of the first box body 200 is set upward to form an arc structure with high front and rear ends and low middle, so that most of the rainwater dripping on the upper end surface of the first box body 200 flows to the ground from the left and right ends of the lowest point of the arc structure.

[0091] With such arrangement, when the RV body 100 is in the unfolded state, the upper end surface of the first box body 200 with an arc structure can prevent excessive rainwater from flowing from the first box body 200 to the second box body 300, and prevent rainwater from flowing into the RV body 100 from the gap between the first box body 200 and the second box body 300. When the RV body 100 is in the retracted state, the upper end surface of the first box body 200 with an arc structure can reduce the flow of rainwater from the upper end surface of the first box body 200 to the first door frame 230, the second door frame 420 and the door 600, further reducing the possibility of rainwater infiltrating into the RV body 100.

[0092] Furthermore, the three boxes constituting the RV body 100 are all chamfered. Specifically, the upper end surface of the first box 200 and the left and right end surfaces connected thereto are chamfered, so that rainwater dripping on the upper end surface of the first box 200 can also be guided to flow from the left and right ends of the first box 200 to the ground.

[0093] It can be understood that the chamfered structure of the second box body 300 and the third box body 400 is the same as that of the first box body 200, that is, the upper end face of the second box body 300 and the left end face and the right end face connected thereto are chamfered to each other, and the upper end face of the third box body 400 and the left end face and the right end face connected thereto are chamfered to each other. Therefore, rainwater dripping on the second box body 300 and the third box body 400 can not only flow out backwards along the inclined upper end faces, but also flow to the ground in the left and right directions.

[0094] It is understandable that a locking structure is further provided between the first door frame 230 and the second door frame 420, and between the second door frame 420 and the vehicle door 600. When the RV body 100 is in a retracted state, the locking structure stabilizes the RV body 100 as a whole, preventing the second box body 300 from being pulled out of the first box body 200 and the third box body 400 from being pulled out of the second box body 300 due to inertia during transportation of the trailer RV, causing relative rotation between the vehicle door 600 and the second door frame 420, thereby affecting transportation safety.

[0095] It is understandable that the locking structure can be an existing spring lock, side column lock, etc., and is not specifically limited here.

[0096] It is understandable that since the two adjacent boxes can form a drawer structure that can be telescoped forward and backward, when unfolded, the inner bottom surface of the box located in the front is lower than the inner bottom surface of the box located in the rear, making it difficult for people to lie down and rest or move on the uneven surface.

[0097] In this regard, the inner bottom surface of each box is detachably connected with a pad, and all pads can be stored in the box located at the rear. When the RV body 100 is in the unfolded state, except for the box located at the rear, the interiors of the other boxes are all paved with pads to make up for the height difference between the inner bottom surface of the box located in the front and the inner bottom surface of the box located at the rear, so that the inner bottom surface of the unfolded RV body 100 is flat, which is convenient for people to rest and move around.

[0098] It can be understood that since the pad is used to compensate for the height difference of the inner bottom surface, and the rear end of the pad abuts the front side surface of the adjacent rear box, and the front end of the pad abuts the pad of the adjacent front box, and for the box located at the frontmost, the front end of the pad abuts the inner front side of the box, therefore, multiple pads can also be clamped in the RV body 100 from the front and rear directions to ensure that the RV body 100 is always in an expanded state.

[0099] The preferred implementation methods of the utility model are described in detail above, but the invention of the utility model is not limited to the described embodiments. Those skilled in the art may make various equivalent modifications or substitutions without violating the spirit of the utility model. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A trailer RV, comprising a RV body, characterized in that: The RV body includes more than two boxes arranged in sequence along the front-to-back direction, and in two adjacent boxes, the box located at the rear can be stored in the box located at the front, so that all the boxes can form a drawer structure that can be telescopically moved forward and backward; The upper end surface of the box body is arranged to be inclined downward from front to rear; The RV body is configured such that, when two adjacent boxes are unfolded front and rear, the rear end of the box located in the front and the front end of the box located in the rear are overlapped to form a waterproof sealing structure.

2. The trailer caravan according to claim 1, characterized in that: In the two adjacent boxes, the rear end of the box located in the front is provided with a rear opening, and a retaining edge extends inwardly from the edge of the rear opening. The front end of the box located in the rear passes through the rear opening and has a water retaining member extending outwardly, and the water retaining member is located in front of the retaining edge. The sealing structure is configured such that when the two adjacent boxes are unfolded front and back, the water retaining member and the retaining edge abut to form the sealing structure.

3. The trailer caravan according to claim 2, characterized in that: A sealing member is provided between the retaining edge and the water retaining member.

4. The trailer caravan according to claim 3, characterized in that: The sealing member comprises a sleeve portion and an abutment portion which are connected to each other. The sleeve portion is sleeved on the retaining edge or the water retaining member, and the abutment portion is located between the retaining edge and the water retaining member.

5. The trailer caravan according to claim 4, characterized in that: The rear end of the box body located at the front is connected to a first door frame, and the rear opening and the retaining edge are arranged on the first door frame. The rear end of the box body located at the rear is connected to a second door frame, and the RV body is configured such that when all the boxes are retracted forward and backward, the second door frame is embedded in the rear opening of the first door frame and abuts against the retaining edge.

6. The trailer caravan according to claim 5, characterized in that: The second door frame is provided with a vehicle door opening connected front to back, the second door frame is rotatably connected to the vehicle door and the rotation axis extends in the left-right direction, the vehicle door is configured so that when the vehicle door is rotated and closed relative to the second door frame, the vehicle door rotates along the rotation axis and is engaged with the vehicle door opening.

7. The trailer caravan according to claim 6, characterized in that: The second door frame has a limiting member extending inwardly along the vehicle door opening, the limiting member is sleeve-connected with the sealing member, and the limiting member is configured such that when the vehicle door is rotated and engaged with the vehicle door opening, the abutting portion abuts between the limiting member and the vehicle door.

8. The trailer caravan according to claim 6, characterized in that: The second door frame is connected to a first rotating shaft, and the vehicle door is connected to a second rotating shaft. In the left-right projection, the first rotating shaft and the second rotating shaft are both spirally rotated inward. The end of the second rotating shaft away from the vehicle door rotates around the first rotating shaft, and the first rotating shaft is connected to waterproof baffles on opposite sides along the left-right direction.

9. The trailer caravan according to claim 6, characterized in that: It also includes a telescopic support rod, and the opposite ends of the support rod are respectively hinged to the vehicle door and the second door frame.

10. The trailer caravan according to claim 1, characterized in that: The upper end surface of the box body and the connected left end surface and right end surface are chamfered.

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