CN215883452U

CN215883452U - Car as a house that afterbody space can expand

Info

Publication number: CN215883452U
Application number: CN202121260577.8U
Authority: CN
Inventors: 王志春; 柳静
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-06-07
Filing date: 2021-06-07
Publication date: 2022-02-22
Anticipated expiration: 2031-06-07

Abstract

The utility model discloses a caravan with a spatial extensible tail part, which comprises a carriage, wherein the carriage is provided with a tail door capable of being horizontally arranged to form an extension bottom plate, the carriage is provided with an extension shell assembly capable of being overlapped and contracted at the tail part of the carriage and matched with the shape of a body at the tail part of the carriage, the extension shell assembly comprises N U-shaped units with downward openings, the 1 st U-shaped unit is slidably connected inside the carriage and can extend towards the rear part of the carriage, the rest U-shaped units are sequentially slidably connected inside the previous adjacent U-shaped unit and can extend towards the rear part of the previous adjacent U-shaped unit, all N U-shaped units extend backwards to form an extension carriage with the horizontally arranged tail door, and N is a positive integer greater than 1. The expanded carriage can provide independent use space for the carriage, and the operation of contraction and expansion is convenient and rapid, and the reliability is high.

Description

Car as a house that afterbody space can expand

Technical Field

The utility model relates to a recreational vehicle with a stretchable tail space.

Background

The motor home has two functions of 'house' and 'vehicle', and is a movable vehicle type with essential basic facilities at home. The function of the 'car' can be embodied when the car is driven, and the function of the 'house' is shown in the comprehensive feeling of the car as a house in the living process of the passengers, especially the feeling of the car as a house which can be used for living, entertainment and rest space. With car as a house functional area division, can possess independent kitchen or dining room region or independent bedroom, can bring more comfortable convenient sojourn life impression for the user.

The car as a house among the prior art, no matter be pull-type car as a house or holistic self-propelled car as a house, the majority is because of the car as a house automobile body is less, and usable space is more narrow and small in the sojourn life, and the problem that passenger's sleep rest bed position is few or sleep rest space is not enough is obvious very much. In addition, the kitchen of the motor home is not independently arranged, so that passengers are affected by oil smoke when cooking in the motor home; there is also no relatively independent space in the motor home, resulting in poor privacy in sojourn life.

Most car homes adopt the mode of expanding the storehouse to expand the space, also have the afterbody to expand the car homes individually, and these car homes have increased certain usable floor area or space, nevertheless have the potential safety hazard to a certain extent, and the operation is complicated relatively, and the power consumption consuming time is contract, expandes to the automobile body, and reliability, poor stability, the leakproofness is relatively poor can not realize good heat preservation effect, and is waterproof relatively poor, has brought many inconveniences and bad experience for the sojourn life. There is an outdoor drawing stove, but it is influenced by weather or environment more, and meanwhile, there is only a stove, there is no cooker, sink and enough operation space, etc. to cause inconvenience for passengers.

For example, chinese patent application No. 201410761673.9 discloses a "variable car as a house railway carriage or compartment body structure in space", it is a variable car as a house railway carriage or compartment body structure in space, the railway carriage or compartment body comprises bottom plate, both sides board, the tailboard, front bezel and roof, the tailboard lower extreme passes through the hinge and rotationally installs at the bottom plate rear end, be equipped with the foldable side curtain between tailboard both sides and curb plate afterbody, both sides curtain is fan-shaped structure, fan-shaped radius is the height of tailboard, be equipped with the foldable top curtain on the curtain of both sides, two limits are fixed respectively on tailboard upper portion and roof afterbody around the top curtain, both sides curtain, the tailboard forms the extension space that communicates with the railway carriage or compartment internal space under the tailboard is opened, be equipped with the telescopic pull rod between tailboard both sides and curb plate afterbody. This technical scheme is through the side curtain that can fold up between tailboard both sides and curb plate afterbody, though increased the afterbody space, it is fan-shaped space structure, and the height that prolongs the space is limited, and available effective space is limited. The strength, toughness and compressive resistance of the prolonged space are relatively poor, and certain potential safety hazards exist. The curtain is folded and is expanded reliability problem and stability problem, and the heavy tailboard of switch brings the inconvenience, all brings a great deal of bad experience for the user and feels. For example, the chinese patent application No. 201611252538.7 discloses "a space-expandable car as a house and a control method of a bathing system thereof", the car is provided with a rear telescopic car, a bottom plate of the rear telescopic car is an upper plate, a bottom plate of the car is a lower plate, a guide rail is arranged between the upper plate and the lower plate, a gap is arranged between the upper plate and the lower plate, the upper plate is connected with a back door of the car, transverse folding mechanisms are arranged between the two sides and the upper side of the back door of the car and the car, a connecting mechanism is arranged between the transverse folding mechanisms and the upper plate, a support frame is arranged below the tail part of the upper plate, and the width of the upper plate is consistent with the inner width of the bottom of the car. This technical scheme increases car as a house usage space through the carriage that stretches out and draws back afterwards, but its flexible process is complicated relatively and needs to be equipped with guide rail, horizontal folding mechanism, linking mechanism between upper plate and the lower plate, and the living equipment in the carriage is all installed in the carriage side, must influence car inner space overall arrangement, and its horizontal folding mechanism is the canvas structure, and folding support intensity and toughness are not enough, and impact resistance is poor relatively. The rear storage cavity of the rear telescopic carriage transverse folding mechanism occupies the space of the carriage, and meanwhile, certain influence is caused on the attractiveness of the interior of the carriage.

To sum up, there is not better economic practicality's expansion car as a house at present, and can set up the car as a house in kitchen or interior space alone, can also reach safe and reliable, stable, the simple operation of system, have good leakproofness and waterproof nature simultaneously at low cost.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide the caravan with the expandable tail space, which has the advantages of relatively low cost, reliable system, convenience in operation, light expanded space part relative to the whole caravan, small volume and no influence on the whole layout of the caravan.

The utility model discloses a caravan with a spatial-extensible tail, which comprises a carriage, wherein the carriage is provided with a tail door capable of being flatly placed to form an extension bottom plate, the carriage is provided with an extension shell assembly capable of being stacked and contracted at the tail of the carriage and matched with the body shape at the tail of the carriage, the extension shell assembly comprises N U-shaped units with downward openings, the 1 st U-shaped unit is slidably connected inside the carriage and can extend towards the rear part of the carriage, the rest U-shaped units are sequentially slidably connected inside the previous adjacent U-shaped unit and can extend towards the rear part of the previous adjacent U-shaped unit, all the N U-shaped units extend backwards to form an extension carriage with the tail door horizontally placed, and N is a positive integer greater than 1.

According to the utility model, the expansion shell component formed by the tail door and the laminated and contractible U-shaped units forms the tail expansion space of the carriage, and when the vehicle is driven, the expansion shell component contracts to the tail of the carriage, so that the occupied space of the carriage is small; when the car as a house is parked for use, the tail door is opened and the car can be used as an open balcony at the tail of the car body after being horizontally placed, and a section of large expanded carriage can be formed after the U-shaped unit of the expanded shell component extends out and expands.

The utility model also has the following preferred design:

the lower end of the tail door is rotatably connected with the tail end of the bottom plate of the carriage through a pin shaft or a hinge, the upper end of a framework of the tail door can be provided with a folding supporting leg, and the folding supporting leg is folded during driving and opens and supports the horizontally-laid tail door when the tail door is parked for use as a caravan.

The tail gate is also provided with a telescopic cylinder supporting mechanism, the lower end of a cylinder body of the telescopic cylinder supporting mechanism is hinged with one end of a V-shaped support, the other end of the V-shaped support is hinged on a pin shaft of the tail gate, the V-shaped support is fixedly connected with an underframe of the carriage, and the upper end of a telescopic rod of the telescopic cylinder supporting mechanism is hinged with a fixed support on the tail gate. As a feasible implementation mode, one side of the V-shaped bracket is connected with the underframe of the carriage, in addition, the telescopic cylinder supporting mechanism is a hydraulic, pneumatic and electric actuating mechanism and an automatic switching system is formed by matching devices thereof, and the opening and closing of the tail gate can be controlled by the extension and retraction of the telescopic cylinder supporting mechanism, and the flat state of the opened tail gate can be kept.

Preferably, two sets of telescopic cylinder supporting mechanisms which are symmetrical to each other are installed on two sides of the tail door, the telescopic cylinder supporting mechanisms are arranged inside an outer skin of the tail door, and the outer skin is used for enabling the tail door to be attractive in appearance.

Each U-shaped unit of the utility model is composed of a U-shaped frame at the front end and the rear end and a shell panel between the two U-shaped frames, wherein the U-shaped frames can be aluminum frames, and the shell panels can be processed and formed by polycarbonate plates.

The inner side of the tail door, namely the extension bottom plate of the horizontally placed tail door, is provided with a slide rail, the bottom of the U-shaped frame of each U-shaped unit is provided with a pulley, the distribution position of the slide rail corresponds to the sliding track of the pulley at the bottom of each U-shaped unit, and the pulleys are arranged in the slide rail in a matching way. The edge of the tail end of the bottom plate of the carriage is provided with a rubber sealing belt which is inclined inwards and is fixedly connected with the end head of the longest slide rail. The inner side of the joint of the root of the rubber sealing belt and the bottom plate surface is provided with a drainage groove and a drainage hole along the root, so that the influence of sealing and water seepage on expanding space is prevented.

A flange for preventing the next U-shaped unit from falling off is arranged between the rear end of each U-shaped unit and the front end of the next adjacent U-shaped unit.

As a feasible implementation manner, the outer edge of the U-shaped frame at the front end of each U-shaped unit of the utility model is provided with the flange which protrudes outwards, except for the last U-shaped unit, the U-shaped frame at the rear end of each U-shaped unit is provided with an inwards-turned flange, and the flange of the U-shaped frame at the rear end of each U-shaped unit and the flange of the U-shaped frame at the front end of the next adjacent U-shaped unit are both provided with sealing strips which are in tenon-mortise fit structures.

A movable kitchen cabinet is arranged on one side of the tail of the carriage, a bathroom is arranged on the other side of the tail of the carriage, and the expanded carriage can be used as a kitchen and can also be used as an independent expanded space.

According to the utility model, the strip-shaped tail lamp strip is arranged at the upper end of the tail part of the carriage frame, the strip-shaped tail lamp strip is arranged along the upper part of the seam between the tail door and the carriage, and when the tail door is closed, the shell of the strip-shaped tail lamp strip can block rainwater at the top of the vehicle, so that the rainwater at the top of the vehicle is prevented from leaking into the tail door through the door seam of the upper frame when the tail door is closed.

The utility model has the following beneficial effects:

1. the tail door of the caravan carriage is flatly opened to be used as an open balcony of the tail, the U-shaped unit of the expansion shell assembly extends out and is unfolded to form a tail expansion carriage together with the flatly-arranged tail door, the expansion carriage provides independent space to be used as an independent kitchen, a room and the like, the property of the room is more highlighted, and when the tail expansion space is unfolded, on the premise of providing comfortable and loose life, entertainment, rest space or kitchen space for passengers, the material consumption is less, the cost is low, the economic practicability is high, and the operation of expanding the contraction and unfolding of the shell assembly is more time-saving and labor-saving. After the expansion shell is contracted, the tail door is closed, the motor home is retracted to expand the space, and the driving controllability and the normal parking of the vehicle are not influenced. When the expansion shell is contracted, the occupied space is small, the weight is light and the volume is small.

2. When the tail gate is used as a bottom plate of an expanded carriage, the tail gate and the load on the tail gate are supported through the telescopic cylinder supporting mechanism and the folding legs, so that the safety and stability of the expanded carriage in the using process are ensured.

3. The U-shaped frame of the U-shaped unit can be an aluminum frame, the shell panel can be formed by processing a polycarbonate plate, and the U-shaped unit has the characteristics of light weight, strong toughness, difficult aging and yellowing, ultraviolet resistance and good flame retardance, improves the impact resistance, and is firm, durable, safe and stable.

4. The U-shaped unit is matched with the flatly-placed tail gate after extending and unfolding through the pulley and the sliding rail, and the pulley is arranged inside the sliding rail in a matching mode to prevent separation, so that the expansion shell assembly is convenient to shrink and unfold, safe and stable.

5. A flange is arranged between the U-shaped units of the expansion shell assembly, and every two adjacent U-shaped units can be buckled with each other in the processes of contraction, extension and expansion and can not be separated.

In conclusion, the utility model shows the advantages of small car body and large space by expanding the tail space, can be contracted into a small car body when driving, and can be expanded to expand a large motor home with expanded space when stationing, so that the functions of the motor home and the motor home are better integrated. The caravan can be applied to various caravans, and can be an integral bicycle, a pull-type caravan and the like.

Drawings

FIG. 1 is a side view of a trailer of the present invention after being retracted in an expanded space;

FIG. 2 is a side view of a trailer expansion housing assembly of the present invention with the aft space expandable;

FIG. 3 is a side view of the trailer with extendable tail space of the present invention, wherein the dashed lines show the closed tail gate and the retracted extended shell assembly;

FIG. 4 is an enlarged view of a circled portion of FIG. 3;

FIG. 5 is a side view and a close-up view of the extended housing assembly of the present invention in an extended position;

fig. 6 is a perspective view of the extended housing assembly of the present invention after deployment.

Description of reference numerals:

1-carriage, 2-bottom plate, 3-tail gate, 4-telescopic cylinder supporting mechanism, 5-V type bracket, 51-lower joint and 52-upper joint; 6-fixed support, 7-strip tail lamp strip, 8-outer skin, 9-expanded shell component, 91-first U-shaped unit, 92-second U-shaped unit, 93-third U-shaped unit, 10-carriage tail door frame, 11-first front U-shaped frame, 12-first rear U-shaped frame, 13-second front U-shaped frame, 14-second rear U-shaped frame, 15-third front U-shaped frame, 16-third rear U-shaped frame, 20-slide rail, 21-pulley, 22-first slide rail sealing strip, 23-second slide rail sealing strip, 24-first frame sealing strip, 25-mortise and tenon sealing strip, 26-second frame sealing strip, 27-bath room, and 28-kitchen cabinet.

Detailed Description

The technical solutions of the present invention are described in detail below with reference to the accompanying drawings and examples, so that those skilled in the art can better understand and implement the technical solutions of the present invention.

As shown in fig. 1 to 6, the recreational vehicle with the expandable tail space comprises a compartment 1, wherein the compartment 1 is provided with a tail door 3 which can be flatly placed to form an extension bottom plate, the compartment 1 is provided with an expansion shell assembly 9 which can be stacked and contracted at the tail of the compartment 1 and is matched with the shape of a vehicle body at the tail of the compartment 1, the expansion shell assembly 9 comprises 3U-shaped units with downward openings, a first U-shaped unit 91 is slidably connected inside the compartment 1 and can extend out towards the rear part of the compartment 1, the other U-shaped units, namely a second U-shaped unit 92 and a third U-shaped unit 93 are sequentially slidably connected inside a previous adjacent U-shaped unit and can extend out towards the rear part of the previous adjacent U-shaped unit, and all the 3U-shaped units extend backwards and form an expansion compartment with the flatly placed tail door 3.

As a preferred embodiment:

the lower end of the tail door 3 is rotatably connected with the tail end of the bottom plate 2 of the carriage 1 through a pin shaft or a hinge, the upper end of a framework of the tail door 3 is provided with a folding supporting leg (not shown in the figure), the folding supporting leg is folded during driving, and the tail door 3 which is horizontally placed is supported and opened when the automobile is parked for use as a house car.

The tail gate 3 is also provided with a telescopic cylinder supporting mechanism 4, the lower end of the cylinder body of the telescopic cylinder supporting mechanism 4 is hinged with one end of a V-shaped support 5, namely an upper joint 52, the other end of the V-shaped support 5, namely a lower joint 51, is hinged on a pin shaft of the tail gate 3 rotating around the tail end of the bottom plate 2, as shown in figures 4 to 6, one side surface of the V-shaped support 5 is fixedly connected with the bottom frame of the carriage 1, and the upper end of a telescopic rod of the telescopic cylinder supporting mechanism 4 is hinged with a fixed support 6 on the tail gate 3. In addition, the telescopic cylinder supporting mechanism 4 of the present embodiment adopts a hydraulic oil cylinder and an actuator of the telescopic cylinder supporting mechanism such as a motor, an oil pump, an electromagnetic valve, a flow dividing and collecting valve, a one-way valve, an overflow valve, a stop valve and the like to form an automatic opening and closing system for controlling the automatic opening and closing of the tail gate, and the opening and closing of the tail gate can also be controlled by a pneumatic or electric actuator.

Two sets of mutual symmetry are installed to the both sides of tail-gate 3 telescopic cylinder supporting mechanism 4, and telescopic cylinder supporting mechanism 4 sets up inside tail-gate outer skin 8, and outer skin 8's effect lies in making tail-gate 3 aesthetic in appearance.

Each U-shaped unit is composed of U-shaped frames at the front end and the rear end and a shell panel between the two U-shaped frames, specifically, the first U-shaped unit 91 comprises a first front U-shaped frame 11, a first rear U-shaped frame 12 and a shell panel, the second U-shaped unit 92 comprises a second front U-shaped frame 13, a second rear U-shaped frame 14 and a shell panel, the third U-shaped unit 93 comprises a third front U-shaped frame 15, a third rear U-shaped frame 16, a shell panel, a tail panel and a door arranged on the tail panel, and the tail panel is used as a closed structure at the rear end of the third U-shaped unit, wherein the U-shaped frames can be aluminum frames, and the shell panel can be formed by processing polycarbonate plates.

In other embodiments, the number and material of the U-shaped units can be adjusted according to the actual needs of the caravan.

The inner side of the tail gate 3, namely the extension bottom plate after the tail gate is flatly placed, is provided with a slide rail 20, the bottom of the U-shaped frame of the U-shaped unit is provided with a pulley 21, the distribution position of the slide rail 20 corresponds to the sliding track of the pulley 21 at the bottom of each U-shaped unit, and the pulley 21 is arranged inside the slide rail 20 in a matching way. A first sliding rail sealing strip 22 and a second sliding rail sealing strip 23 are further mounted in a seam at the joint of the sliding rail 20 and the U-shaped unit, and are linearly extruded between the outer wall of the sliding rail and the inner side of the root of the U-shaped unit, so that the lower edge of the expanded carriage is sealed. The edge of the tail end of the bottom plate 2 of the carriage 1 is provided with a rubber sealing belt which is inclined inwards and is fixedly connected with the end of the longest slide rail, and when the expanded space is expanded, the root part of the tail surface of the third U-shaped unit 93 is sealed with the rubber sealing belt. The inner side of the joint of the root of the rubber sealing belt and the bottom plate surface is provided with a drainage groove and a drainage hole along the root, so that the influence of sealing and water seepage on expanding space is prevented.

A flange for preventing the next U-shaped unit from falling off is arranged between the rear end of each U-shaped unit and the front end of the next adjacent U-shaped unit. As shown in fig. 5, the outer edge of the first front U-shaped frame 11 of the first U-shaped unit 91 is provided with a flange protruding outwards, and the car tail door frame 10 is provided with a flange turning inwards, so that the first U-shaped unit 91 is in mortise-tenon sealing connection with the car tail door frame 10.

The outer edges of a second front U-shaped frame 13 at the front end of a second U-shaped unit 92 and a third front U-shaped frame 15 at the front end of a third U-shaped unit 93 are respectively provided with a flange which protrudes outwards, a first rear U-shaped frame 12 at the rear end of the first U-shaped unit 91 and a second rear U-shaped frame 14 at the rear end of the second U-shaped unit 92 are respectively provided with an inwards-turned flange, and a sealing strip with a tenon-mortise fit structure is respectively arranged at the buckling part of the flange of the rear end U-shaped frame of each U-shaped unit and the flange of the front end U-shaped frame of the next adjacent U-shaped unit, for example, as shown in fig. 5, the second rear U-shaped frame 14 of the second U-shaped unit 92 and the third front U-shaped frame 15 of the third U-shaped unit 93 are both provided with the mortise and tenon sealing strip 25, the joint is also provided with the first frame sealing strip 24 and the second frame sealing strip 26, and a brush or the like can be used to cooperate with the sealing strips to realize multiple sealing, so that the two U-shaped units are connected in a sealing manner.

A sanitary bath room 27 is arranged on one side of the tail of a carriage 1, a movable kitchen cabinet 28 is arranged on the other side of the tail of the carriage, the front end and the rear end of an expanded carriage can also be sealed by a mantle, a curtain cloth and the like to form independent spaces, the movable kitchen cabinet 28 can be used as a kitchen after being pushed and pulled to an extending bottom plate of the expanded carriage to prevent oil smoke from flowing into the carriage, in addition, after the kitchen cabinet 28 is moved to the expanded carriage, the idle space and the bath room can be communicated to form an expanded space of the bath room 27, and the mantle or a folding door can be installed on the open surface of the expanded space to form a private space.

According to the utility model, the strip-shaped tail lamp strip 7 is arranged at the upper end of the tail part of the frame of the carriage 1, the strip-shaped tail lamp strip 7 is arranged at the upper part of the seam between the tail door 3 and the carriage 1, and when the tail door 3 is closed, the shell of the strip-shaped tail lamp strip 7 can block rainwater at the top of the vehicle, so that the rainwater at the top of the vehicle is prevented from leaking into the tail door through the door seam of the upper frame when the tail door is closed.

The above-mentioned embodiments are only preferred embodiments of the present invention, but should not be construed as limitations of the present invention, and any modifications and improvements based on the concept of the present invention shall fall within the protection scope of the present invention, and the specific protection scope shall be subject to the claims.

Claims

1. The utility model provides a car as a house that afterbody space can expand, includes the carriage, its characterized in that, the carriage sets up the tail gate that can keep flat and constitute the extension bottom plate, the carriage install can range upon range of shrink in the carriage afterbody and with the expansion casing subassembly that carriage afterbody automobile body shape matches, it includes the decurrent U type unit of N opening to expand casing subassembly, 1 st U type unit sliding connection be in the carriage is inside and can to the carriage rear portion stretches out, and all the other U type units are sliding connection in proper order inside and can stretch out to this preceding adjacent U type unit rear portion of an adjacent U type unit, and N the U type unit is whole to be stretched out backward and keep flat the tail gate constitutes and extends the carriage, and wherein N is for being greater than 1 positive integer.

2. The tailspace expandable recreational vehicle of claim 1, wherein: the lower end of the tail gate is rotatably connected with the tail end of the bottom plate of the carriage through a pin shaft or a hinge, and the upper end of the framework of the tail gate is provided with a folding supporting leg.

3. The tailspace expandable recreational vehicle of claim 2, wherein: the tail gate is further provided with a telescopic cylinder supporting mechanism, the lower end of a cylinder body of the telescopic cylinder supporting mechanism is hinged to one end of a V-shaped support, the other end of the V-shaped support is hinged to a pin shaft of the tail gate, the V-shaped support is fixedly connected with a chassis of the carriage, and the upper end of a telescopic rod of the telescopic cylinder supporting mechanism is hinged to a fixing support on the tail gate.

4. The tailspace expandable recreational vehicle of claim 3, wherein: two sets of mutual symmetry are installed to the both sides of tail-gate telescopic cylinder supporting mechanism, just telescopic cylinder supporting mechanism sets up inside the outer covering of tail-gate.

5. The trailer space expandable recreational vehicle according to any one of claims 1 to 4, wherein: each U-shaped unit at least comprises a U-shaped frame at the front end and the rear end and a shell panel between the two U-shaped frames.

6. The tailspace expandable recreational vehicle of claim 5, wherein: the inner side of the tail door, namely the extension bottom plate after the tail door is flatly placed, is provided with a slide rail, the bottom of the U-shaped frame of the U-shaped unit is provided with pulleys, the distribution positions of the slide rails correspond to the sliding tracks of the pulleys at the bottom of each U-shaped unit, and the pulleys are arranged inside the slide rail in a matched mode.

7. The tailspace expandable recreational vehicle of claim 6, wherein: a flange for preventing the next U-shaped unit from falling off is arranged between the rear end of each U-shaped unit and the front end of the next adjacent U-shaped unit.

8. The tailspace expandable recreational vehicle of claim 7, wherein: the outer edge of the U-shaped frame at the front end of each U-shaped unit is provided with a flange which protrudes outwards, the edge of the U-shaped frame at the rear end of each U-shaped unit is provided with an inwards-turned flange except the last U-shaped unit, and the flange of the U-shaped frame at the rear end of each U-shaped unit and the flange of the U-shaped frame at the front end of the next adjacent U-shaped unit are provided with sealing strips which are of tenon-mortise fit structures.

9. The tailspace expandable recreational vehicle of claim 8, wherein: one side of the tail of the carriage is provided with a movable kitchen cabinet, and the other side of the tail of the carriage is provided with a bathroom.

10. The tailspace expandable recreational vehicle of claim 9, wherein: and a strip-shaped tail lamp strip is arranged at the upper end of the tail part of the carriage frame, and the strip-shaped tail lamp strip is positioned at the upper edge of a seam between the tail door and the carriage when the tail door is closed.