CN111255079A

CN111255079A - Expansion shelter

Info

Publication number: CN111255079A
Application number: CN202010126398.9A
Authority: CN
Inventors: 张毅; 姜炯; 荆世玲; 李长彪; 魏明吉; 谢遵海; 李正
Original assignee: Qingdao Yatongda Railway Equipment Co ltd
Current assignee: Qingdao Yatongda Railway Equipment Co ltd
Priority date: 2020-02-28
Filing date: 2020-02-28
Publication date: 2020-06-09

Abstract

The invention relates to an expansion shelter, which comprises a fixed cabin body, wherein one or more expansion cabin bodies capable of being pulled out are installed on one side or two sides of the fixed cabin body, a plurality of slide rails capable of enabling the expansion cabin bodies to move to the outside of the fixed cabin body are arranged at the bottom of the fixed cabin body, each slide rail comprises a fixed slide rail arranged in the fixed cabin body and a movable slide rail correspondingly arranged on the outside of the fixed cabin body, supporting feet are installed at the other ends of the movable slide rails, and the movable slide rails are configured to form slide rails for the expansion cabin bodies to move together with the corresponding fixed slide rails in an expansion state and retract and fix the expansion cabin bodies on the fixed cabin bodies in a retraction state. The invention can greatly improve the bearing capacity of the expansion cabin body in the unfolding state, is beneficial to increasing the drawing length of the expansion space and effectively improving the expansion space, and has simple integral structure, simple and convenient operation and better stability in the drawing process.

Description

Expansion shelter

Technical Field

The invention relates to an expanded shelter structure, and belongs to the technical field of shelter structures.

Background

The square cabin is a convenient and movable whole formed by organically combining various solid materials. The shelter can adapt to various transportation forms, has good maneuverability, can provide good internal working environment under severe conditions, has various protective capacities, is an independent self-bearing box body, is similar to a container in the aspects of shape, structure and transportation, can be used for loading electronic equipment, maintenance equipment, medical equipment and the like to form an equipment shelter, or can be used as a command center and a conference center, can overcome complex natural environment and ensure the continuous reliability of work. The shelter is applied to the fields of army command systems, communication, medical treatment, logistics support and the like, and the current shelter at home and abroad can be roughly divided into an expansion shelter and a non-expansion shelter.

The requirement of the non-expanded shelter is consistent with the width of a standard container, and the width of the shelter is strictly limited by the width of a transport vehicle, so that the use space provided inside the shelter is quite narrow, the use function of the shelter is particularly limited, and the mobility is poor. The expansion shelter has small carrying volume and can be expanded to form a large space, so that the application range is enlarged, the field installation is convenient, and the transportation mode is flexible.

The expansion shelter can be divided into different expansion modes such as a drawing type expansion mode and a folding type expansion mode according to different structural forms of the expansion shelter. The folding shelter has large expansion ratio, but has a large number of folding seams, complex structure and long erection and retraction time, and is not beneficial to quick expansion work; although the drawing type structure is relatively simple, the problems of small expansion ratio, insufficient space after expansion, poor bearing capacity and unstable drawing position exist.

Disclosure of Invention

The invention mainly solves the technical problem of providing the expansion shelter which can effectively improve the expansion space and the bearing capacity, and has simple structure and operation and good stability.

In order to achieve the purpose, the technical scheme of the invention is as follows:

an extension shelter comprises a fixed cabin body, one or more extension cabin bodies which can be drawn are arranged on one side or two sides of the fixed cabin body, a plurality of slide rails which can enable the extension cabin body to move to the outside of the fixed cabin body are arranged at the bottom of the fixed cabin body, the slide rails comprise fixed slide rails arranged in the fixed cabin body and movable slide rails correspondingly arranged on the outside of the fixed cabin body, and supporting ground feet are arranged at the other ends of the movable slide rails,

the movable slide rails are configured to form slide rails for the extended cabin to move together with the corresponding fixed slide rails when in the expanded state, and to be fixed on the fixed cabin when the extended cabin is in the retracted state.

Further, the activity slide rail is collapsible slide rail, is connected through the hinge between the one end of collapsible slide rail and the fixed cabin body, collapsible slide rail is rotatory around the hinge and realizes folding and the expansion be provided with locking device on the fixed cabin body, collapsible slide rail is fixed through locking device after folding.

Or, the movable slide rail is a telescopic slide rail, the fixed slide rail is of a hollow structure, and the telescopic slide rail is arranged in the fixed slide rail in a telescopic mode.

Further, the bottom of the extension cabin body corresponds the slide rail is provided with slide mechanism, slide mechanism includes the U-shaped slide body of downward open the internal a plurality of rollers of installing of slide, the roller bearing is followed the rail surface rolls on the slide rail be provided with orienting device on the both sides board of the slide body respectively, the slide rail is restricted in both sides between the orienting device.

Further, the floor of the fixed cabin body is a lifting platform, a lifting driving mechanism is installed below the floor, and the floor is configured to move to avoid the bottom plate of the extended cabin body when the extended cabin body needs to be retracted and to be in the same plane with the bottom plate of the extended cabin body after the extended cabin body moves in the reverse direction.

Further, the floor of the fixed cabin body is provided with a fixed part and a foldable part, the foldable part is hinged to the fixed part, the foldable part is arranged on a path where the side wall board of the expanded cabin body moves, and the foldable part is unfolded when the expanded cabin body extends out and is turned and folded when the expanded cabin body retracts to avoid the side wall board of the expanded cabin body.

Further, the both sides wallboard top of the extension cabin body is provided with guide structure, corresponds two side apex angles of the fixed cabin body install the leading wheel, the leading wheel slides with the guide structure cooperation.

Further, the guide structure is a guide inclined plane transversely extending along the side wall plate, the guide wheel is a conical wheel, and a conical surface of the conical wheel is matched with the guide inclined plane to slide.

Furthermore, a plurality of fixed cabin upper cross beams are arranged on a top plate of the fixed cabin body, a plurality of expansion cabin upper cross beams are arranged on the top plate of the corresponding expansion cabin body, and at least one group of corresponding expansion cabin upper cross beams are connected with the fixed cabin upper cross beams through a suspended ceiling pulley mechanism.

Further, furred ceiling pulley mechanism includes the bearing gyro wheel, bearing gyro wheel fixed mounting is in the bottom of fixed cabin entablature, expansion cabin entablature is "mouth" shape guide rail roof beam, the bearing gyro wheel holds in the cavity of "mouth" shape guide rail roof beam, the bearing gyro wheel realizes hanging and sliding with the roof cooperation of "mouth" shape guide rail roof beam.

Further, be provided with the rainwater guide way on the roof of the fixed cabin body and the extension cabin body, or the top of the fixed cabin body is provided with movable canopy the extension cabin body stretches out the back the canopy activity is expanded to the top of the extension cabin body.

In summary, compared with the prior art, the extended shelter of the present invention has the following advantages:

(1) according to the invention, through the arrangement of the movable slide rails, the bearing capacity of the expansion cabin body in the unfolding state can be greatly improved, the drawing length of the expansion space is increased, the expansion space is effectively improved, the overall structure is simple, the operation is simple and convenient, and the stability of the drawing process is better.

(2) The floor of the fixed cabin body is designed into the lifting platform, so that the extended cabin body can move conveniently, the floor of the fixed cabin body and the floor of the extended cabin body can be kept on the same plane after the extended cabin body is moved out, the space utilization rate of the extended rear cabin is increased, and the use is more convenient.

Drawings

FIG. 1 is a schematic view of the shelter structure of the present invention;

FIG. 2 is a skeletal structure of the shelter of the present invention;

FIG. 3 is a structural view of the frame of the fixed cabin of the present invention;

FIG. 4 is a structural view of the skeleton of the extended cabin of the present invention;

FIG. 5 is a view of the structure of the foldable sliding rail for fixing the cabin according to the present invention;

FIG. 6 is a view of the structure of the sliding mechanism of the extended cabin of the present invention;

FIG. 7 is a structural view of the frame for fixing the cabin floor according to the present invention;

FIG. 8 is a structural view of the side wall panel skeleton of the extended cabin of the present invention;

FIG. 9 is a side view of the fixed cabin of the present invention;

FIG. 10 is an enlarged partial view of FIG. 9;

FIG. 11 is a longitudinal structural sectional view of the fixed and extended cabins of the present invention;

fig. 12 is a sectional view of the structure of the hanger rail pulley mechanism of the present invention.

As shown in fig. 1 to 12, a fixed cabin 1, a floor 1a, a fixed part 1a-1, a foldable part 1a-2, a hinge shaft 1a-3, a support beam 1b, a bottom plate 1c, an expansion cabin 2, a bottom plate 2a, a side wall plate 2b, an equipment room 3, a folding cassette 4, a folding table 5, a conference table and chair 6, an equipment space 7, a cabin door 8, a projector curtain 9, a fixed slide rail 10, a foldable slide rail 11, a support foot 12, a hinge shaft 13, a sliding mechanism 14, a slide rail body 14a, a roller 14b, a bull's eye bearing 14c, a lifting drive mechanism 15, a guide structure 16, a guide wheel 17, a guide slope 18, a bearing 19, a fixed column 20, a fixed cabin upper cross beam 21, an expansion cabin upper cross beam 22, a ceiling pulley mechanism 23, a bearing roller 24, a locking device 25, a sealing rubber strip 26 and a canopy 27.

Detailed Description

The invention is described in further detail below with reference to the following detailed description and accompanying drawings:

the first embodiment is as follows:

as shown in fig. 1, the present embodiment provides an expansion shelter, which includes a fixed shelter 1, and two retractable expansion shelters 2 are respectively installed at two sides of the fixed shelter 1, and the expansion shelter 2 may also be installed at only one side of the fixed shelter 1 as required. An opening (not marked in the figure) is arranged at one side of the fixed cabin body 1 where the expanded cabin body 2 is arranged, and a sealing rubber strip 26 (shown in fig. 11) is arranged at the joint of the fixed cabin body 1 and the expanded cabin body 2 to ensure the sealing performance of the shelter.

As shown in fig. 1, only one expansion cabin 2 may be disposed on one side of the fixed cabin 1, or two or more expansion cabins 2 may be disposed as required, and the expansion cabins 2 on the same side are relatively independent after extending out. The structures of the expanded capsule bodies 2 on both sides of the fixed capsule body 1 can be symmetrically arranged, and also can adopt an asymmetric arrangement mode according to the needs.

As shown in fig. 1, the extended cabin 2 at both sides of the fixed cabin 1 adopts an asymmetric structural form, conference tables and chairs 6 and the like are installed in the fixed cabin 1, a cabin door 8 is arranged on the fixed cabin 1, a projector curtain 9 is installed on the wall board at the other end opposite to the cabin door 8, an equipment room 3 is arranged at one corner of the fixed cabin 1, equipment such as an air conditioner and a generator are installed in the equipment room 3, and the extended cabin 2 at the side is installed by avoiding the equipment room 3. Install folding cassette 4, folding table 5 etc. in the extension cabin body 2, folding cassette 4 and folding table 5 can articulate on the inner wall of the extension cabin body 2, can fold when the transportation, save the space and put middle conference table chair 6 etc. save space, convenient transportation. An equipment space 7 is arranged at one corner of the expansion cabin body 1, and a coffee machine, a microwave oven, a refrigerator, a water dispenser, a storage cabinet and the like are arranged in the equipment space 7, so that the working and living needs are met.

The floor, the wallboard, the roof of the fixed cabin body 1 and the bottom plate, the side wallboard, the roof and the like of the expanded cabin body 2 are all composed of a framework and wallboards, the framework adopts a steel structure, the wallboards can be composed of outer wallboards, inner wallboards and middle sound and heat insulation materials as required, and lines, pipelines and the like can be installed between the outer wallboards and the inner wallboards, so that the occupied space is saved.

As shown in fig. 2 and 3, the bottom of the fixed cabin 1 includes an upper floor 1a, a middle support beam 1b, and a bottom floor 1c, and a plurality of linear slide rails are further disposed between the upper floor 1a and the bottom floor 1c to enable the extended cabin 2 to move to the outside of the fixed cabin 1, and the plurality of slide rails are disposed in parallel, and preferably four slide rails are disposed to ensure the stability of the pulling. Each slide rail comprises a fixed slide rail 10 arranged inside the fixed cabin body 1 and a movable slide rail correspondingly arranged outside the fixed cabin body 1, and the fixed slide rails 10 are arranged along the whole length of the fixed cabin body 1 in the width direction as the support beams 1b and play a role in supporting.

As shown in fig. 3 and 5, in this embodiment, it is preferable that the movable slide rail is of a foldable slide rail 11 structure, one end of the foldable slide rail 11 is connected to the bottom of the fixed cabin 1 through a hinge shaft 13, the foldable slide rail 11 rotates around the hinge shaft 13 in the horizontal direction to realize folding and unfolding, a support anchor 12 for supporting on the ground is installed at the other end of the foldable slide rail 11, and the support anchor 12 can be of an adjustable support structure, so that the corresponding height can be conveniently adjusted according to the requirements of the terrain, so as to achieve effective support and improve the bearing capacity. The foldable slide rails 11 and the corresponding fixed slide rails 10 form linear slide rails for the extension cabin 2 to move when in the unfolded state.

When the extended cabin body 2 is in a retraction state, the foldable slide rail 11 horizontally rotates around the hinge shaft 13 and then is folded and fixed at the outer side of the bottom of the fixed cabin body 1, so that the operation is convenient, the limit of the whole square cabin is not increased, and the transportation is convenient. The locking device 25 is arranged on the fixed cabin body 1, the foldable slide rail 11 is fixed by the locking device 25 after being folded, the locking device 25 can adopt a buckle structure, the buckle is fixed on the fixed cabin body 1, and the foldable slide rail 11 is fixed in the buckle after being folded. The bottom of the fixed cabin 1 is further provided with a limiting structure (not shown in the figure) for limiting the maximum rotation angle of the foldable sliding rail 11 to 90 °.

As shown in fig. 4 and 6, a sliding mechanism 14 is disposed on the bottom plate 2a of the extended cabin 2 corresponding to the fixed slide rail 10 and the foldable slide rail 11, the sliding mechanism 14 includes a U-shaped slide rail body 14a that is open downward, a plurality of rollers 14b are arranged in the slide rail body 14a, the rollers 14b roll along the upper rail surfaces of the fixed slide rail 10 and the foldable slide rail 11, and a plurality of sets of orientation devices are disposed on two side plates of the slide rail body 14a, in this embodiment, the orientation devices preferably employ bull eye bearings 14c mounted on the side plates, and the fixed slide rail 10 and the foldable slide rail 11 are limited between the bull eye bearings 14c on the two sides, so as to ensure that the extended cabin 1 does not shake when being pulled and pulled, and further improve the movement stability.

When the extension cabin 2 needs to be pulled out, the plurality of foldable slide rails 11 are unlocked and rotated around the hinge shaft 13 to be in an unfolded state, the support feet 12 are adjusted to be supported on the ground, and the extension cabin 2 is pulled outwards to slide outwards along the four groups of fixed slide rails 10 and the foldable slide rails 11. When the extension cabin body 2 needs to retract, the extension cabin body 2 is pushed inwards, after the extension cabin body 2 is completely pushed into the fixed cabin body 1, the foldable slide rail 11 horizontally and reversely rotates around the hinge shaft 13 to a position parallel to the side face of the bottom of the fixed cabin body 1, and then the locking device is used for locking and fixing. The extension cabin body 2 utilizes a plurality of support ground feet 12 to support subaerial after outwards sliding, but folding slide rail 11 also can play certain supporting role to the extension cabin body 2 simultaneously, is favorable to promoting the bearing capacity of the extension cabin body 2 by a wide margin, and then can increase the pull length of the extension cabin body 2, effectively promotes the extension space.

The fixed slide rail 10 is provided with a maximum travel limit stop (not shown in the figure) for limiting the extension and retraction of the extension cabin body 2, and is also provided with a locking structure, so that the extension cabin body can be locked and fixed in the extension state and the retraction state, the extension cabin body 2 is prevented from moving in the transportation and working states, and the sealing performance between the fixed cabin body 1 and the extension cabin body 2 can be ensured.

As shown in fig. 2 and fig. 6, the floor 1a of the fixed cabin 1 is designed to be a structure of a liftable platform, a lifting driving mechanism 15 is installed below the floor 1a, the lifting driving mechanism 15 is located in the middle of the extended cabins 2 at both sides, a hydraulic driving mechanism, a scissor-type lifting mechanism, a motor transmission mechanism and the like can be adopted, and devices such as hydraulic cylinders, motors and the like can be connected through lines and pipelines at the installation site, and can also be directly installed in the equipment room 3. Of course, the lifting driving mechanism 15 may also be a manual lifting mechanism, such as a rocker screw transmission mechanism and a manual hydraulic transmission mechanism, and the operation boxes such as rockers are installed at the positions convenient for operation at the two ends of the fixed cabin 1. The lifting drive mechanism 15 may be provided in only one set, or may be provided in two or more sets as needed. When the extended cabin 2 needs to be retracted, the control floor 1a is raised to avoid the bottom plate 2a of the extended cabin 2, the bottom plate 2a of the extended cabin 2 is stacked below the floor 1a, and after the extended cabin 2 is extended, the control floor 1a is lowered to make the floor 1a and the bottom plate 2a of the extended cabin 2 in the same plane. The expansion rear shelter is beneficial to increasing the space utilization rate of the expansion rear shelter, and is more convenient to use. Sealing strips are arranged between the floor 1a and the framework of the fixed cabin 1 to ensure sealing.

As shown in FIGS. 2 and 7, in order to facilitate the extension and retraction of the extended cabin 2, the floor 1a of the fixed cabin 2 has a fixed part 1a-1 and a foldable part 1a-2, the foldable part 1a-2 is connected to the fixed part 1a-1 by a hinge 1a-3, the foldable part 1a-2 is disposed on the path of the side wall plate 2b of the extended cabin 2, in this embodiment, the foldable part 1a-2 is disposed on both sides of the floor 1a, and the foldable part 1a-2 is folded over the fixed part 1a-1, so as to avoid the side wall plate 2b of the extended cabin 2.

As shown in fig. 4, 8, 9 and 10, the top of the two side wall boards 2a of the extended cabin 2 is provided with a guide structure 16, guide wheels 17 are installed at two side top corners corresponding to the fixed cabin 1, and the guide wheels 17 are matched with the guide structure 16 to slide. In the present embodiment, the guiding structure 16 is preferably a guiding bevel 18 extending transversely along the side wall plate 2a, the guiding bevel 18 is formed by an L-shaped beveled beam welded to the side wall plate 2a, and the guiding wheel 17 is a conical wheel. The guide wheel 17 is mounted on a fixed column 20 through a bearing 19, and the fixed column 20 is mounted on a framework of the fixed cabin 1. The conical surface of the guide wheel 17 is matched with the guide inclined surface 18 to slide, so that the self-centering of the extension cabin body 2 in the drawing process is facilitated, and the drawing stability of the extension cabin body 2 is improved. The guide structure 16 and the guide wheel 17 may not adopt the structures of an inclined plane and a conical wheel, and may adopt the matching structure of a vertical plane and a bull eye bearing.

As shown in fig. 2 and 11, a plurality of fixed cabin upper beams 21 are disposed at the top of the fixed cabin 1, a plurality of expansion cabin upper beams 22 are disposed at the top of the expansion cabin 2, and one or more groups of corresponding expansion cabin upper beams 22 are connected to the fixed cabin upper beams 21 through a ceiling pulley mechanism 23.

As shown in fig. 12, the ceiling pulley mechanism 23 includes a plurality of bearing rollers 24, the bearing rollers 24 are fixedly mounted at the bottom of the fixed cabin upper cross beam 21, the plurality of bearing rollers 24 may be disposed on the fixed cabin upper cross beam 21, or only one bearing roller may be disposed at a position close to the side portion of the fixed cabin body 1, the expansion cabin upper cross beam 22 adopts a structure of a "mouth" shaped guide rail beam, the bearing rollers 24 are accommodated in a cavity of the "mouth" shaped guide rail beam, and the bearing rollers 24 are matched with the top wall of the "mouth" shaped guide rail beam to realize hanging and sliding. The method is favorable for further improving the movement stability of the expansion cabin body 2 and simultaneously is favorable for avoiding the deformation of the upper cross beam 22 of the expansion cabin body and influencing the service life.

As shown in fig. 11, a movable canopy 27 structure is provided on the fixed cabin 1, the movable canopy 27 is a foldable structure, one side of the canopy 27 is hinged to the fixed cabin 1, and when the canopy is not needed, the canopy is folded above the top plate of the fixed cabin 1, and when the canopy is needed, the canopy is turned over and opened above the top plate of the extended cabin 2. Of course, a canopy is also fixedly mounted above the top plate of the fixed cabin 1, and the two canopies are hinged.

Example two:

the difference from the first embodiment is that the movable slide can also adopt a telescopic slide rail (not shown in the figure) structure, the fixed slide rail 10 is a hollow structure, and the telescopic slide rail is telescopically installed in the fixed slide rail 10. When needed, the movable slide is drawn out from the fixed slide rail 10 to form a linear slide rail with the fixed slide 10 for the expandable cabin 2 to move, the outermost end of the telescopic slide rail is provided with a supporting foot margin, and the supporting foot margin is exposed outside the fixed cabin 1 when the telescopic slide rail retracts.

The fixed cabin 1 is provided with a limit stop (not shown in the figure) for limiting the maximum telescopic sliding stroke, and the fixed cabin 1 is also provided with a locking device for locking and fixing when the fixed cabin extends in a telescopic sliding mode or retracts to prevent the fixed cabin from moving during transportation or use.

The telescopic slide rails can slide separately from the expandable cabin 2 and can also be made into a structure which can move synchronously with the expandable cabin 2.

Example three:

the difference from the first embodiment is that in the present embodiment, the canopy is disposed above the top plate of the fixed cabin 1 and has a retractable double-layer structure, the lower canopy can be extended and unfolded as required after the extended cabin 2 is extended, and the extended canopy is located above the extended cabin 2 and used for shielding the extended cabin 2 from rain and can be retracted when not in use.

Example four:

the difference from the above embodiment lies in that in this embodiment, rainwater guide grooves (not shown in the figure) are provided on the top plates of the fixed cabin 1 and the extended cabin 2, the rainwater guide grooves are provided at four sides above the top plates of the fixed cabin 1 and the extended cabin 2, and the rainwater guide grooves can adopt a structure with a high middle and two low ends, so that rainwater can be conveniently discharged and rainwater can be prevented from accumulating.

Similar solutions can be derived from the solution given in the figures, as described above. However, any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present invention are within the scope of the technical solution of the present invention.

Claims

1. The utility model provides an extension shelter, includes the fixed cabin body one side or both sides of the fixed cabin body install one or more extension cabin bodies that can pull, its characterized in that: the bottom of the fixed cabin body is provided with a plurality of slide rails which can enable the extension cabin body to move to the outside of the fixed cabin body, the slide rails comprise fixed slide rails arranged inside the fixed cabin body and movable slide rails arranged outside the fixed cabin body correspondingly, the other ends of the movable slide rails are provided with support anchor feet, the movable slide rails are configured to jointly form slide rails for the extension cabin body to move with the corresponding fixed slide rails when in an unfolding state, and the extension cabin body retracts and is fixed on the fixed cabin body when in a retracting state.

2. An extended shelter as claimed in claim 1 wherein: the movable slide rail is a foldable slide rail, one end of the foldable slide rail is connected with the fixed cabin body through a hinge shaft, and the foldable slide rail rotates around the hinge shaft to realize folding and unfolding;

3. An extended shelter as claimed in claim 1 wherein: the bottom of the extension cabin body corresponds the slide rail is provided with slide mechanism, slide mechanism includes the downward open U-shaped slide body install a plurality of rollers in the slide body, the roller bearing is followed the rail surface rolls on the slide rail be provided with orienting device on the both sides board of the slide body respectively, the slide rail is restricted in both sides between the orienting device.

4. An extended shelter as claimed in claim 1 wherein: the floor of the fixed cabin body is a lifting platform, a lifting driving mechanism is installed below the floor, and the floor is configured to move to avoid the bottom plate of the extended cabin body when the extended cabin body needs to retract, and is positioned on the same plane with the bottom plate of the extended cabin body after the extended cabin body moves reversely.

5. An extended shelter as claimed in claim 4 wherein: the floor of the fixed cabin body is provided with a fixed part and a foldable part, the foldable part is hinged with the fixed part, the foldable part is arranged on a path for moving the side wall board of the expansion cabin body, the foldable part is unfolded when the expansion cabin body extends out and is folded to avoid the side wall board of the expansion cabin body when the expansion cabin body retracts.

6. An extended shelter as claimed in claim 1 wherein: the top of the wall boards on the two sides of the extension cabin body is provided with a guide structure, guide wheels are installed on two side vertex angles of the fixed cabin body correspondingly, and the guide wheels slide in a matched manner with the guide structure.

7. An extended shelter as claimed in claim 6 wherein: the guide structure is a guide inclined plane transversely extending along the side wall plate, the guide wheel is a conical wheel, and the conical surface of the conical wheel is matched with the guide inclined plane to slide.

8. An extended shelter as claimed in claim 1 wherein: the top plate of the fixed cabin body is provided with a plurality of fixed cabin upper cross beams, a plurality of expansion cabin upper cross beams are arranged on the top plate of the expansion cabin body correspondingly, and at least one group of corresponding expansion cabin upper cross beams are connected with the fixed cabin upper cross beams through a suspended ceiling pulley mechanism.

9. An extended shelter as claimed in claim 8 wherein: the suspended ceiling pulley mechanism comprises a bearing roller, the bearing roller is fixedly installed at the bottom of an upper beam of the fixed cabin, the upper beam of the expansion cabin is a 'mouth' -shaped guide rail beam, the bearing roller is accommodated in a cavity of the 'mouth' -shaped guide rail beam, and the bearing roller is matched with the top wall of the 'mouth' -shaped guide rail beam to realize hanging and sliding.

10. An extended shelter as claimed in claim 1 wherein: the roof of the fixed cabin body and the top plate of the expansion cabin body are provided with rainwater guide grooves, or the top of the fixed cabin body is provided with a movable canopy, and after the expansion cabin body extends out, the canopy is movably unfolded to the upper part of the expansion cabin body.