Emergency Shelter

Abstract

The present application relates to an emergency cabin. The emergency cabin described in the present application includes a cabin body, a drive box, a roller assembly and a lifting assembly. The drive box is connected to the cabin body, and a receiving cavity is formed in the drive box. The roller assembly is located in the receiving cavity and is connected to the lifting assembly. The lifting assembly can be connected to the drive box in a lifting manner and is used to drive the roller assembly to move into or out of the receiving cavity. The emergency cabin described in the present application, by forming a receiving cavity in the drive box and driving the roller assembly to move into the receiving cavity, can make the drive box replace the roller to contact the ground, increase the contact area, and prevent the emergency cabin from slipping on the ground and colliding; on the other hand, by setting a lifting assembly to drive the roller assembly to move into or into the receiving cavity, it can efficiently switch between the two states of the roller assembly in contact with the ground and the drive box in contact with the ground, so that the emergency cabin can respond quickly to needs.

Description

Technical Field

[0001] The present application relates to the technical field of emergency equipment, and in particular to an emergency shelter. Background Art

[0002] Emergency shelters are widely used at disaster rescue sites. Similar in structure to a container, they are typically constructed from welded metal sheets. They can be used to accommodate various supplies, equipment, and devices, such as emergency relief supplies, lighting, and generators. Emergency shelters are relatively heavy and typically require transport to a designated work area via a truck. Rollers on the bottom of the shelter then push the shelter to its designated location.

[0003] When transporting emergency shelters on vehicles, the rollers are typically locked to prevent rotation to ensure safe operation. Ropes are also used to secure the shelter to the vehicle to prevent movement and collisions. However, the contact area between the rollers and the vehicle's ground is too small, resulting in insufficient friction and a potential for locking. This prevents the shelter from being completely locked in place, compromising safety. Furthermore, tying and untying the ropes takes considerable time, increasing the time required to prepare the shelter for operation and slowing down disaster relief efforts. Summary of the Invention

[0004] Based on this, it is necessary to provide an emergency shelter to address the problem of lack of reasonable protection during the transportation process of traditional emergency shelters.

[0005] An emergency shelter, comprising:

[0006] cabin;

[0007] A drive box is connected to the cabin, and an accommodating cavity is formed in the drive box;

[0008] A roller assembly and a lifting assembly, wherein the roller assembly is positioned opposite the accommodating cavity and is connected to the lifting assembly, and the lifting assembly is liftably connected to the drive box and is used to drive the roller assembly into or out of the accommodating cavity.

[0009] In one embodiment, the lifting assembly includes a driving member, a first sprocket, a chain, a second sprocket and a threaded member, the driving member is connected to the first sprocket to drive the first sprocket to rotate, the first sprocket is engaged with the chain, the chain is engaged with the second sprocket, the second sprocket is provided with a threaded hole, the threaded member is threadedly connected to the threaded hole and one end of the threaded member is connected to the roller assembly to drive the threaded member to move axially along the threaded hole when the second sprocket rotates, and the roller assembly moves with the threaded member.

[0010] In one embodiment, the chain is in a square ring shape, and there are multiple second sprockets, and the multiple second sprockets are engaged with the inner side of the chain.

[0011] In one embodiment, the lifting assembly further includes a mounting plate, the roller assembly includes a wheel body and a bracket, the wheel body is rotatably connected to the bracket, the mounting plate is fixedly connected to the threaded member and the bracket, and when the mounting plate is located in the accommodating cavity, the mounting plate cooperates with the peripheral wall of the accommodating cavity to limit the axial rotation of the threaded member when the second sprocket and the threaded member rotate relative to each other.

[0012] In one embodiment, a limit member is provided in the drive box, and at least part of the limit member presses against the side of the second sprocket facing away from the roller assembly to prevent the second sprocket from moving axially along the threaded hole when the second sprocket and the threaded member rotate relative to each other.

[0013] In one embodiment, the limiting member includes a rolling portion, and the rolling portion presses against the second sprocket, so that the limiting member is rollingly connected to the second sprocket.

[0014] In one embodiment, the emergency cabin also includes a handle assembly, the drive box is provided with a bracket, the bracket is tubular and forms a mounting groove, the handle assembly includes an insertion portion and a handle, the insertion portion is used to insert into the mounting groove, and the handle is arranged at an angle to the insertion portion and contacts the top of the bracket.

[0015] In one embodiment, an inclined surface is provided at one end of the insertion portion away from the handle, and a surface opposite to the inclined surface gradually converges with the inclined surface in a direction away from the handle.

[0016] In one embodiment, a storage rack is provided between the drive box and the cabin.

[0017] In one embodiment, the emergency cabin further includes a plurality of telescopic support mechanisms, which are correspondingly arranged on both sides of the cabin body. The telescopic support mechanism includes a support seat and a sleeve, the sleeve is connected to the cabin body, and the support seat is slidably connected to the sleeve.

[0018] The above-mentioned emergency cabin forms a accommodating cavity in the drive box and drives the roller assembly into the accommodating cavity, so that the drive box replaces the roller to contact the ground, thereby increasing the contact area between the emergency cabin and the ground, preventing the emergency cabin from sliding on the ground and colliding, and effectively protecting the emergency cabin; on the other hand, by setting a lifting assembly to drive the roller assembly into or out of the accommodating cavity, it can efficiently switch between the state of the roller assembly in contact with the ground and the state of the drive box in contact with the ground, greatly shortening the time required for loading or unloading the cabin, and thus being able to quickly respond to disaster relief needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a structural diagram of an emergency shelter in one embodiment of the present application.

[0020] Figure 2 This is a cross-sectional view of a drive box of an emergency shelter in one embodiment of the present application.

[0021] Figure 3 for Figure 2 Enlarged schematic diagram of point A in the middle.

[0022] Figure 4 This is a cross-sectional view of a limiting component of an emergency shelter in one embodiment of the present application.

[0023] Figure 5 for Figure 2 Enlarged schematic diagram of point B in the middle.

[0024] Description of reference numerals:

[0025] 100, cabin; 200, drive box; 200a, accommodating cavity; 210, first inner plate; 2101, mounting block; 220, second inner plate; 230, side plate; 240, limit member; 241, fixed arm; 242, limit arm; 243, rolling part; 250, bracket; 300, roller assembly; 310, wheel body; 320, bracket; 400, lifting assembly; 410, drive member; 420, first sprocket; 430, chain; 440, second sprocket; 450, threaded member; 451, screw; 460, mounting plate; 500, handle assembly; 510, insertion part; 520, handle; 600, storage rack; 610, upper plate; 620, lower plate; 630, column; 700, telescopic support mechanism; 710, sleeve; 720, support seat. DETAILED DESCRIPTION

[0026] To make the above-mentioned objects, features, and advantages of the present application more clearly understood, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways than those described herein, and those skilled in the art can make similar improvements without violating the scope of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0027] In the description of this application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing this application and simplifying the description, and does 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 this application.

[0028] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include at least one of such features. In the description of this application, if the term "plurality" appears, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0029] In this application, unless otherwise specified or limited, the terms "mounted," "connected," "connected," "fixed," etc., should be interpreted broadly. For example, these terms may refer to fixed connections, removable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediary; and internal communication between two components or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0030] In this application, unless otherwise expressly specified or limited, if a first feature is described as being "above" or "below" a second feature, or similar descriptions, this may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is described as being "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is described as being "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0031] See also Figure 1 、 Figure 2 and Figure 3 An emergency shelter provided in one embodiment of the present application includes a cabin body 100, a drive box 200, a roller assembly 300, and a lifting assembly 400. The drive box 200 is connected to the cabin body 100 and has a receiving cavity 200a formed therein. The roller assembly 300 is positioned in the receiving cavity and connected to the lifting assembly 400. The lifting assembly 400 is connected to the drive box 200 and is used to drive the roller assembly 300 into or out of the receiving cavity.

[0032] The emergency shelter provided in the present application is equipped with a lifting assembly 400 and a roller assembly 300, so that the lifting assembly 400 can be moved into the accommodating cavity 200a formed in the drive box 200. This not only protects the roller assembly 300 from collision, but also allows the drive box 200 to replace the roller assembly 300 in contact with the ground, thereby increasing the contact area between the emergency shelter and the ground. It can be firmly placed on the ground to avoid collision, and there is no need to use additional ropes or other fixing devices for fixing. This simplifies the operations during loading and unloading, and greatly improves the speed of loading and unloading the emergency shelter.

[0033] It should be noted that the ground described in this application is the ground in a broad sense, including but not limited to the road surface on which the emergency shelter is traveling, and the bottom surface of the truck or lorry on which the emergency shelter is loaded.

[0034] In some embodiments, reference Figure 2 and Figure 3The lifting assembly 400 includes a driving member 410, a first sprocket 420, a chain 430, a second sprocket 440 and a threaded member 450. The driving member 410 is connected to the first sprocket 420 to drive the first sprocket 420 to rotate. The first sprocket 420 is engaged with the chain 430, and the chain 430 is engaged with the second sprocket 440. The second sprocket 440 is provided with a threaded hole. The threaded member 450 is threadedly connected to the threaded hole and one end of the threaded member 450 is connected to the roller assembly 300 to drive the threaded member 450 to move along the axial direction of the threaded hole when the second sprocket 440 rotates, and the roller assembly 300 moves with the threaded member 450.

[0035] For example, the drive box 200 is approximately rectangular, and the drive member 410 is disposed within the drive box 200. In this embodiment, the drive member 410 is a motor, the motor body of which is fixed to the bottom surface of the drive box 200. The motor is connected to a worm gear reducer, and the output shaft of the worm gear reducer extends upward. A first sprocket 420 is disposed at the top of the output shaft and meshes with a chain 430. When the motor is started, the motor drives the output shaft of the worm gear reducer to rotate, and the first sprocket 420 rotates accordingly, and the meshing causes the chain 430 to transmit power in a horizontal direction.

[0036] A receiving cavity 200a is formed in the corner area of ​​the bottom side of the drive box 200. It can be seen that the bottom plate of the drive box 200 is recessed upward to form a first inner plate 210 and a second inner plate 220. The first inner plate 210 and the second inner plate 220 are enclosed by the side plate 230 of the drive box 200 to form an open receiving cavity 200a, wherein the first inner plate 210 faces the ground, and the second inner plate 220 faces the side plate 230 of the drive box 200. The second sprocket 440 is disposed on the side of the first inner plate 210 facing away from the roller assembly 300 and is engaged with the chain 430. A threaded hole is formed in the center of the second sprocket 440, and a screw member 450 is inserted into the threaded hole to be screwed to the second sprocket 440. The screw member 450 passes through the first inner plate 210 and is partially located in the accommodating cavity 200 a . The end of the screw member 450 located in the accommodating cavity 200 a is connected to the roller assembly 300 . In an exemplary embodiment, the screw member 450 is a screw rod 451 .

[0037] As can be understood, when the chain 430 rotates, the meshing causes the second sprocket 440 to rotate, thereby driving the screw 451 to rotate. Since the second sprocket 440 is limited by the meshing of the chain 430, it will not move upward in the vertical direction, while the screw 451 will move upward due to the threaded connection. The roller assembly 300 connected to the bottom end of the screw 451 will also rise with the screw 451 and enter the accommodating chamber 200a. In this embodiment, the emergency loading and unloading cabin has a total of four roller assemblies 300. When all four roller assemblies 300 move upward into the accommodating chamber 200a, the bottom area of ​​the drive box 200, excluding the accommodating chamber 200a, will replace the roller assemblies 300 and contact the ground, thereby increasing the contact area between the emergency loading and unloading cabin and the ground, so that the friction between the emergency loading and unloading cabin and the ground is sufficient to prevent movement.

[0038] In some embodiments, the chain 430 is in a square ring shape, and there are multiple second sprockets 440 , and the multiple second sprockets 440 are engaged with the inner side of the chain 430 .

[0039] For example, continue to refer to Figure 2 and Figure 3 The drive box 200 is provided with a receiving cavity 200a at each of its four bottom corners. The top edge of each receiving cavity 200a corresponds to a first inner plate 210. The four corners of the approximately rectangular ring-shaped chain 430 are located above the four first inner plates 210. A mounting block 2101, approximately in the shape of an oblate cylinder, is provided on the first inner plate 210. The second sprocket 440 is rotatably mounted on the mounting block 2101. It is understood that the second sprocket 440 does not contact the first inner plate 210. Therefore, the chain 430, which is engaged with the second sprocket 440, also does not contact the first inner plate 210. This prevents friction between the chain 430 and the first inner plate 210 during the rotary drive process, which could accelerate wear.

[0040] The first sprocket 420 engages with the inner side of the chain 430 to drive the chain 430 in rotation. The four inner corners of the chain 430 respectively engage with the four second sprockets 440. Therefore, when the driver 410 drives the chain 430 in rotation via the first sprocket 420, the four second sprockets 440 rotate simultaneously, driving each corresponding screw 451 to rotate and rise, causing all four roller assemblies 300 to move upward. By providing a square ring-shaped chain 430 that engages the four second sprockets 440 simultaneously, the four roller assemblies 300 can be raised and lowered synchronously, making the drive box 200 more stable when contacting and releasing the ground, effectively protecting the equipment and supplies on board the emergency shelter.

[0041] In some embodiments, the lifting assembly 400 also includes a mounting plate 460, the roller assembly 300 includes a wheel body 310 and a bracket 320, the wheel body 310 is rotatably connected to the bracket 320, and the mounting plate 460 is fixedly connected to the threaded member 450 and the bracket 320. When the mounting plate 460 is located in the accommodating chamber 200a, the mounting plate 460 cooperates with the peripheral wall of the accommodating chamber 200a to limit the axial rotation of the threaded member 450 when the second sprocket 440 and the threaded member 450 rotate relative to each other.

[0042] For example, refer to Figure 2 The four roller assemblies 300 have the same structure. Taking one of the roller assemblies 300 as an example, the roller assembly 300 includes a bracket 320 and a wheel body 310. The wheel body 310 is rotatably connected to the bracket 320, allowing the wheel body 310 to roll on the ground while connected to the bracket 320. The screw 451 is fixedly connected to the bracket 320 through the mounting plate 460. In this embodiment, the bottom of the screw 451 is fixedly connected to the top surface of the mounting plate 460, and the bracket 320 is fixedly connected to the ground of the mounting plate 460. In other embodiments, the screw 451 can also pass through the mounting plate 460 and be fixedly connected to the bracket 320, and the screw 451 and the mounting plate 460 cannot rotate relative to each other.

[0043] The length and width of mounting plate 460 are approximately equal to or slightly smaller than the length and width of accommodating chamber 200a. When mounting plate 460 is located within accommodating chamber 200a, it is understandable that, due to the similar length and width of mounting plate 460 and accommodating chamber 200a, mounting plate 460 is difficult to rotate within accommodating chamber 200a. Therefore, when second sprocket 440 is driven by chain 430 to rotate, screw rod 451, being fixedly connected to mounting plate 460, cannot rotate and can only move up and down along the axial direction of screw rod 451. In other words, mounting plate 460 serves as a guide for screw rod 451. By providing mounting plate 460 that engages with the peripheral wall of accommodating chamber 200a, the rotation of screw rod 451 is restricted, further ensuring that screw rod 451 can only move up and down and cannot rotate with second sprocket 440. This, in turn, makes the lifting and lowering movement of roller assembly 300 with screw rod 451 more stable.

[0044] In some embodiments, a limit member 240 is provided in the drive box 200, and at least part of the limit member 240 is pressed against the side of the second sprocket 440 away from the roller assembly 300 to prevent the second sprocket 440 from moving axially along the threaded hole when the second sprocket 440 and the threaded member 450 rotate relative to each other.

[0045] For example, refer to Figure 3 and Figure 4The limiting member 240 includes a fixed arm 241 and a limiting arm 242 that are interconnected. The fixed arm 241 and the limiting arm 242 can be integrally formed or assembled by bonding or screw connection. The lower end of the fixed arm 241 is fixedly disposed on the side of the second inner plate 220 that is away from the accommodating cavity 200a. The upper end of the fixed arm 241 is higher than the top of the second inner plate 220 and corresponds to the second sprocket 440. One end of the limiting arm 242 is connected to the limiting arm 241, and the other end faces the direction of the second sprocket 440 and is located on the top of the second sprocket 440. It should be noted that the end of the limiting arm 242 away from the limiting arm 242 can either contact the top of the second sprocket 440 or have a gap with the top of the second sprocket 440. When the driving member 410 drives the chain 430 to rotate and transmit, causing the second sprocket 440 and the screw rod 451 to rotate relative to each other, since one end of the limiting arm 242 is located on the top of the second sprocket 440, it can prevent the second sprocket 440 from moving upward, thereby helping to prevent the second sprocket 440 from disengaging from the chain 430, making the rotational movement of the second sprocket 440 more stable, and the screw rod 451 can move up and down more stably, thereby making the lifting and lowering movement of the roller assembly 300 relative to the vehicle body more stable, thereby improving the user's operating experience.

[0046] In some embodiments, the limiting member 240 includes a rolling portion 243 , and the rolling portion 243 presses against the second sprocket 440 , so that the limiting member 240 and the second sprocket 440 are in rolling connection.

[0047] For example, continue to refer to Figure 3 and Figure 4 The rolling portion 243 is located near the end of the limiting arm 242 away from the fixed arm 241 and corresponds to the second sprocket 440. The rolling portion 243 is disposed on the side of the limiting arm 242 near the first inner plate 210. A portion of the rolling portion 243 protrudes from the bottom edge of the limiting arm 242, allowing the bottom edge of the rolling portion 243 to contact the top of the second sprocket 440. In this embodiment, the rolling portion 243 is a ball bearing. When the second sprocket 440 rotates, the ball bearing creates rolling friction with the top of the second sprocket 440. Compared to sliding friction, rolling friction significantly reduces the frictional force generated, effectively reducing the wear rate of the second sprocket 440. Furthermore, after long-term use, the ball bearing only needs to be replaced without replacing the limiting arm 242, reducing component replacement costs. In other embodiments, the rolling portion 243 may also be a roller, with the axial direction of the roller aligning with the extension direction of the limiting arm 242, to create rolling friction with the second sprocket 440 when the second sprocket 440 rotates.

[0048] In some embodiments, the emergency cabin also includes a handle assembly 500, the drive box 200 is provided with a bracket 250, the bracket 250 is tubular and forms a mounting groove, the handle assembly 500 includes an insertion portion 510 and a handle 520, the insertion portion 510 is used to insert into the mounting groove, and the handle 520 is arranged at an angle to the insertion portion 510 and contacts the top of the bracket 250.

[0049] For example, refer to Figure 2 Two brackets 250 are provided on the outside of one of the side panels 230 of the drive box 200. The two brackets 250 are identical in shape, both being square tubes, and are disposed at the same height. The handle assembly 500 includes a handle 520 and two inserts 510. The handle 520 is approximately symmetrically U-shaped. The two inserts 510 are square cylinders of the same shape and length, and are respectively connected to the two ends of the handle 520. The inserts 510 and the ends of the handle 520 are disposed at an angle. In this embodiment, the angle is approximately 90 degrees.

[0050] When the handle assembly 500 needs to be installed on the bracket 250, the two inserting parts 510 are aligned with the mounting slots of the two brackets 250, and then the two inserting parts 510 are inserted into the mounting slots from top to bottom until the top of the bracket 250 contacts the handle 520. Therefore, the two brackets 250 support both ends of the handle 520 to prevent the inserting part 510 from moving further downward. The handle assembly 500 can be used to manually pull the drive box 200 to move and rotate, making this emergency cabin more convenient to use and more flexible to move. The inserting part 510 and the handle 520 are arranged at an angle so that the handle assembly 500 can be firmly installed on the bracket 250 without the need for other structures to fix it. The installation is simple, and the handle assembly 500 can also be removed from the bracket 250 when needed, reducing the occupied space and increasing the passability of this emergency cabin in narrow areas.

[0051] In some embodiments, an end of the insertion portion 510 away from the handle 520 is provided with an inclined surface, and the surface opposite to the inclined surface gradually converges in a direction away from the handle 520 .

[0052] For example, refer to Figure 5At the lower end of the insertion portion 510, the two opposite side surfaces of the insertion portion 510 gradually converge in the direction away from the bracket 250, so that the lower end of the insertion portion 510 has a "V"-shaped structure. It can be understood that when the insertion portion 510 is inserted into the mounting slot of the bracket 250 from top to bottom, even if the insertion portion 510 is not completely aligned with the mounting slot, the "V"-shaped structure at the lower end of the insertion portion will play an auxiliary guiding role, allowing the insertion portion 510 to slide toward the middle of the mounting slot to help position it. By providing an inclined surface at the end of the insertion portion 510 away from the handle 520, positioning can be facilitated, making it easier to install the insertion portion 510 to the bracket 250, improving installation efficiency, and avoiding the situation where the handle assembly 500 cannot be accurately installed due to misalignment. In other embodiments, only one of the two opposite side surfaces at the lower end of the insertion portion 510 can be inclined.

[0053] In some embodiments, a storage rack 600 is provided between the drive box 200 and the cabin body 100 .

[0054] For example, refer to Figure 1 The storage rack 600 is mounted on top of the drive box 200 and includes an upper plate 610 and a lower plate 620 disposed in a vertically opposed relationship, and upright posts 630 connected to the four corners of the upper and lower plates 610 and 620, respectively. A storage space is formed between the upper and lower plates 610 and 620. After the handle 500 is removed from the bracket 250, it can be placed in the storage space, improving space utilization and further reducing the total footprint of the emergency shelter.

[0055] In some embodiments, the emergency cabin also includes multiple telescopic support mechanisms 700, which are correspondingly arranged on both sides of the cabin body 100. The telescopic support mechanism 500 includes a sleeve 710 and a support seat 720. The sleeve 720 is connected to the cabin body 100, and the support seat 720 is movably slidably connected to the sleeve 710.

[0056] For example, refer to Figure 1, telescopic support mechanisms 700 are respectively connected to both sides of the cabin 100. The telescopic support mechanism 700 includes a support seat 720 and a sleeve 710 sleeved on the support seat 720. The support seat 720 and the sleeve 710 can be lifted and lowered relative to each other. The sleeve 710 is connected to the cabin 100, and the support seat 720 is used to support it on the ground. In this embodiment, two sleeves 710 are connected to each of the two sides of the cabin 100, so that a telescopic support mechanism 700 is correspondingly provided at each of the four corners of the cabin 100, and the support is more stable. By providing the telescopic support mechanism 700, when the sleeve 710 rises relative to the support seat 720, the cabin 100 moves upward accordingly to change the height of the cabin 100, so that this emergency cabin can be adapted to different working environments and convenient to use. It should be noted that when the driving support seat 720 rises to a certain height relative to the sleeve 710, the wheel body 310 will replace the support seat 720 to contact the ground. At this time, the support seat 720 is suspended in the air and does not play a supporting role.

[0057] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0058] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, and these modifications and improvements fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be determined by the appended claims.

Claims

1. An emergency shelter, characterized in that: The emergency shelter includes: cabin; A drive box is connected to the cabin, and an accommodating cavity is formed in the drive box; a roller assembly and a lifting assembly, wherein the roller assembly is positioned opposite to the accommodating cavity and connected to the lifting assembly, and the lifting assembly is connected to the drive box and is used to drive the roller assembly into or out of the accommodating cavity; The lifting assembly includes a driving member, a first sprocket, a chain, a second sprocket and a threaded member, the driving member is connected to the first sprocket to drive the first sprocket to rotate, the first sprocket is engaged with the chain, the chain is engaged with the second sprocket, the second sprocket is provided with a threaded hole, the threaded member is threadedly connected to the threaded hole, and one end of the threaded member is connected to the roller assembly to drive the threaded member to move along the axial direction of the threaded hole when the second sprocket rotates, and the roller assembly moves with the threaded member; A limiting member is provided in the drive box, and at least a portion of the limiting member presses against a side of the second sprocket facing away from the roller assembly, so as to prevent the second sprocket from moving axially along the threaded hole when the second sprocket and the threaded member rotate relative to each other; The limiting member includes a rolling portion, and the rolling portion presses against the second sprocket to make the limiting member and the second sprocket rollingly connected; A storage rack is provided between the drive box and the cabin body.

2. The emergency shelter according to claim 1, characterized in that: The chain is in a square ring shape, and there are a plurality of second sprockets, which are engaged with the inner side of the chain.

3. The emergency shelter according to claim 1 or 2, characterized in that: The lifting assembly also includes a mounting plate, and the roller assembly includes a wheel body and a bracket. The wheel body is rotatably connected to the bracket, and the mounting plate is fixedly connected to the threaded member and the bracket. When the mounting plate is located in the accommodating cavity, the mounting plate cooperates with the peripheral wall of the accommodating cavity to limit the axial rotation of the threaded member when the second sprocket and the threaded member rotate relative to each other.

4. The emergency shelter according to claim 1, characterized in that: The emergency cabin also includes a handle assembly. The drive box is provided with a bracket, which is tubular and forms a mounting groove. The handle assembly includes an insertion portion and a handle. The insertion portion is used to insert into the mounting groove. The handle is arranged at an angle to the insertion portion and contacts the top end of the bracket.

5. The emergency shelter according to claim 4, characterized in that: An inclined surface is provided at one end of the insertion portion away from the handle, and a surface opposite to the inclined surface gradually converges with the inclined surface in a direction away from the handle.

6. The emergency shelter according to claim 1, characterized in that: The emergency shelter further comprises a plurality of telescopic support mechanisms, which are correspondingly arranged on both sides of the cabin body. The telescopic support mechanisms comprise a support seat and a sleeve, the sleeve being connected to the cabin body, and the support seat being slidably connected to the sleeve.

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