Lifting folding plate of square cabin

Abstract

The invention relates to the technical field of square cabins, and discloses a square cabin lifting folding plate which comprises a top plate, an upper folding plate, a lower folding plate, wall plates and a lifting mechanism, the top plate is rotatably connected with the upper folding plate through a top plate rotating pair, and the upper folding plate is rotatably connected with the lower folding plate through a gear rotating pair; the lower folding plate is rotatably connected with the wall plate through a wall plate rotating pair, the upper end of the lifting mechanism is fixedly connected with the top plate, the lower end of the lifting mechanism is fixed to the bottom plate, and the lifting mechanism is of a telescopic structure. And shock absorption dampers are symmetrically distributed and installed on the top plate and the wall plates, and the upper folding plate and the lower folding plate are limited and protected after the upper folding plate and the lower folding plate are recovered and lowered in place. The square cabin lifting folding plate is full-automatic in lifting through one key, rapid, flexible, high in reliability, long in service life and good in sealing performance in the unfolded state.

Description

Technical Field

[0001] The present invention relates to the technical field of shelters, and in particular to a shelter lifting and folding plate. Background Art

[0002] This section merely provides background information related to the present disclosure and is not necessarily prior art.

[0003] A modular, rapidly deployable, enclosed load-bearing platform with environmental control, protection, and functional expansion capabilities is widely used in multiple fields, providing a safe and stable operating environment for equipment and personnel. There are many types of shelters available today, and the internal activity spaces of different types may vary depending on the needs of their use. For medical rescue, military deployment, emergency command, and other fields, a larger internal activity space is required. In theory, a larger shelter would need to be designed. However, in reality, transport vehicles are relatively limited, and these vehicles need to pull the shelter onto the road for transportation. Larger, fixed-size shelters cannot meet road transportation requirements well, while shelters designed with lifting and folding panels can meet road transportation requirements.

[0004] The current mainstream solution, based on the concept of folding and expanding, involves folding the shelter to reduce its transport volume while ensuring it does not occupy transport space. Upon arrival at its destination, the shelter is then lifted, folded, and expanded to meet operational requirements. Currently, research on reliable lifting, folding, and expanding methods for the height of shelter interiors is limited, both domestically and internationally. Common lifting, folding, and expanding methods are limited to adjusting the horizontal and vertical dimensions of the shelter. Typical solutions include pull-out expandable folding shelters, soft-wall expandable shelters, and multi-stage linkage expandable shelters.

[0005] However, existing technologies also have related technical flaws: First, the research solutions for adjusting the height of the shelters proposed in these studies have significant limitations. They primarily rely on canvas or folding hinges to achieve the expansion and folding of the shelters, resulting in poor reliability and an inability to reliably achieve height-direction lifting and folding, leading to significant folding and expansion issues. Second, the height of the shelters folded in these studies is also relatively low. From an ergonomic perspective, for shelters with large footprints, a low design height will result in a confined interior space, which can be visually and psychologically depressing for humans. Expanding the interior space would fundamentally address this issue and further improve work efficiency. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to address the shortcomings of the existing technology and provide a cabin lifting and folding plate, which can realize stable and reliable cyclic lifting, folding and expansion in the height direction of the cabin, further making the internal activity space of the cabin adjustable and variable, and solving the problems of internal space transportation and psychological feelings of personnel in the cabin.

[0007] A lifting and folding plate of a cabin comprises a top plate, an upper folding plate, a lower folding plate, a wall plate and a lifting mechanism, wherein the top plate is rotatably connected to the upper folding plate via a top plate rotating pair, the upper folding plate is rotatably connected to the lower folding plate via a gear rotating pair, the lower folding plate is rotatably connected to the wall plate via a wall plate rotating pair, the upper end of the lifting mechanism is fixedly connected to the top plate, the lower end of the lifting mechanism is fixed to the bottom plate, and the lifting mechanism is a telescopic structure.

[0008] Furthermore, the top plate rotation pair includes a top plate pad and a top plate rotation pair connecting plate; the top plate pad is connected to the top plate, and the installation direction of the top plate pad is parallel to the left and right directions of the top plate. The two top plate rotation pair connecting plates are respectively connected to the two ends of the top plate pad, and the two top plate rotation pair connecting plates are respectively connected to the two ends of the folding plate, and the upper folding plate can rotate around the connection point of the top plate rotation pair connecting plate.

[0009] Furthermore, the gear rotation pair includes an upper folding plate meshing gear, a lower folding plate meshing gear and a fixed plate; the upper folding plate meshing gear is connected to the lower end of the upper folding plate, the lower folding plate meshing gear is connected to the upper end of the lower folding plate, the upper folding plate meshing gear and the lower folding plate meshing gear are meshed with each other, and the upper folding plate meshing gear and the lower folding plate meshing gear are rotationally connected through the fixed plate.

[0010] Furthermore, the module and number of teeth of the folding plate meshing gear and the lower folding plate meshing gear are the same.

[0011] Furthermore, the wall panel rotation pair includes a wall panel pad and a wall panel rotation pair connecting plate; the wall panel pad is connected to the wall panel, and the installation and placement direction of the wall panel pad is parallel to the left and right directions of the wall panel, and the two wall panel rotation pair connecting plates are respectively connected to the two ends of the wall panel pad, and the two wall panel rotation pair connecting plates are respectively connected to the two ends of the lower folding plate, and the lower folding plate can rotate around the connection point of the wall panel rotation pair connecting plate.

[0012] Furthermore, the top plate is symmetrically provided with a plurality of shock-absorbing dampers on one side of the wall plate, and the wall plate is symmetrically provided with the same number of shock-absorbing dampers on the other side of the top plate. The wall plate is symmetrically provided with the same number of shock absorbers on the other side of the top plate, and the top plate is provided with a limiting column on the side of the wall plate, wherein the limiting column has a limiting hole inside, and the wall plate is provided with a protrusion on the side of the wall plate close to the top plate that cooperates with the limiting hole.

[0013] Furthermore, the shock absorber fixed to the top plate and the shock absorber fixed to the wall plate are aligned in the front-to-back, left-to-right, and up-to-down directions, and the protruding column is aligned with the limiting hole and is on the same straight line.

[0014] Furthermore, the distances between adjacent shock absorbing dampers are the same.

[0015] Furthermore, the surface of the top plate pad is covered with felt.

[0016] Furthermore, the number of the lifting mechanisms is at least two, and the lifting mechanisms are symmetrically arranged. The lifting mechanisms are symmetrically distributed on the left and right sides of the cabin lifting and folding plate, and the extension and retraction are controlled in a one-to-one synchronous manner to ensure movement balance and normal lifting and lowering of the folding plate.

[0017] Furthermore, a limiting post is provided on the side of the top panel near the wall panel, and a limiting hole is provided inside the limiting post. A protrusion is provided on the side of the wall panel near the top panel to cooperate with the limiting hole. After the shelter's lifting and folding panels are folded, they cooperate to limit the position, thereby enhancing the stability of the folded structure. The top panel and wall panels are locked in motion through the cooperation of the protrusion and limiting hole and the self-locking of the lifting mechanism.

[0018] Compared with the prior art, the present invention has the following significant advantages:

[0019] This application replaces the hinges used in existing folding plate rotating pairs with a pair of symmetrically distributed, intermeshing gear pairs, achieving a one-to-one coupled motion between the upper and lower folding plates. Compared to hinge pairs, gear pairs offer advantages such as stable and smooth motion, precise rotational transmission, and high load capacity. This improves the stability and precision of the folding plate's lifting and folding movements, further enhancing the reliability and service life of the folding plate's lifting and folding motions.

[0020] The present application has shock-absorbing rubbers symmetrically installed on the wall panels and under the top panel. Since the shock-absorbing rubbers have good viscous damping characteristics, they have good energy absorption and shock-absorbing effects on large shock waves. When the folding plate is in the retraction process and close to the closed state, the folding plate has a large moment of inertia and large inertia and cannot be completely stopped. With the help of a pair of symmetrically distributed shock-absorbing rubbers, the impact and vibration during the retraction and braking process can be effectively reduced. The support and vibration reduction design of the device after folding provides safety protection and buffering effect during the retraction process, with high reliability, long service life, and improved transportation safety.

[0021] In this application, felt sealing strips are appropriately pasted at the connection gaps of the top plate rotating pair, the wall plate rotating pair, etc., so that the lifting and folding plates of the square cabin have good sealing and light-shielding properties, and improve the dust-proof ability of the folding plates of the square cabin.

[0022] The present application provides a pad and a rotating pair connecting plate at the rotating pair. The pad and the rotating pair connecting plate can adjust the rotation center position of the rotating pair. At the same time, a certain gear coupling gap is maintained at the gear rotating pair to further ensure the gap between the movements of the mechanisms, that is, the gear meshing gap and the movement gap of the rotating pair, to ensure that the mechanism of the lifting and folding plate can rotate normally during operation, and the movement and relative positions between the mechanisms do not interfere. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, and the above and / or other advantages of the present invention will become more apparent.

[0024] Figure 1 It is a schematic diagram of the overall structure of the lifting and folding plate of the present invention from the front view.

[0025] Figure 2 It is a schematic diagram of the overall structure of the lifting and folding plate of the present invention from the back side perspective.

[0026] Figure 3 It is a front view of the overall structure of the lifting and folding plate of the present invention.

[0027] Figure 4 It is a right side view of the overall structure of the lifting and folding plate of the present invention.

[0028] Figure 5 It is a schematic diagram of the rotating pair structure of the lifting and folding plate top plate of the present invention.

[0029] Figure 6 It is an exploded view of the rotating pair structure of the lifting and folding plate top plate of the present invention.

[0030] Figure 7 It is a schematic diagram of the structure of the lifting and folding plate gear rotating pair of the present invention.

[0031] Figure 8 It is an exploded view of the lifting and folding plate gear rotating pair structure of the present invention.

[0032] Figure 9 It is a schematic diagram of the rotary pair structure of the lifting and folding plate wall panel of the present invention.

[0033] Figure 10 It is an exploded view of the lifting and folding panel wall panel rotating pair structure of the present invention.

[0034] Figure 11 It is a schematic diagram of the initial closed state of the lifting and folding plate of the present invention.

[0035] Figure 12 It is a flow chart of the working steps of the lifting and folding plate of the present invention. DETAILED DESCRIPTION

[0036] The present invention can be better understood with reference to the following examples.

[0037] Since this patent only describes the cabin lifting and folding plate and does not involve the design description of the lifting mechanism, the detailed structure of this part of the lifting mechanism 5 is not shown, and it is only simplified.

[0038] The reference numerals in the accompanying drawings are: 1-top plate; 11-limiting column; 12-limiting hole; 13-top plate rotating pair connecting plate; 14-top plate pad; 15-felt; 2-upper folding plate; 3-lower folding plate; 4-wall panel; 41-convex column; 42-wall panel rotating pair connecting plate; 43-wall panel pad; 44-felt; 45-support column; 46-bottom plate; 5-lifting mechanism; 6-top plate rotating pair; 7-gear rotating pair; 71-lower folding plate meshing gear; 72-upper folding plate meshing gear; 73-fixed plate; 8-wall panel rotating pair; 9-shock absorber.

[0039] like Figure 1 、 Figure 2 、 Figure 3 and Figure 4 As shown, the cabin lifting folding plate mainly consists of the top plate 1, upper folding plate 2, lower folding plate 3, wall plate 4 and lifting mechanism 5 from top to bottom. The top plate 1 is rotatably connected to the upper folding plate 2 via the top plate rotating pair 6, the upper folding plate 2 is rotatably connected to the lower folding plate 3 via two symmetrically distributed gear rotating pairs 7, and the lower folding plate 3 is rotatably connected to the wall plate 4 via the wall plate rotating pair 8. The upper end of the lifting mechanism 5 is fixed to the top plate 1, and the lower end is fixed to the bottom plate 46. The length of the lifting mechanism 5 is adjustable, and the two lifting mechanisms 5 are symmetrically distributed. Figure 2 As shown, three shock-absorbing dampers 9 are symmetrically fixed to the rear lower surface of the top panel 1, and three shock-absorbing dampers 9 are symmetrically fixed to the rear upper surface of the wall panel 4. The shock-absorbing dampers 9 fixed to the top panel 1 and the shock-absorbing dampers fixed to the wall panel 4 are aligned in the front-to-back, left-to-right, and up-down directions. A pair of limit posts 11 are symmetrically provided at the front end of the lower surface of the top panel 1, each of which has a limit hole 12 disposed therein. A pair of protrusions 41 are symmetrically provided at the front end of the upper surface of the wall panel 4, and the protrusions 41 are aligned with the limit holes 12.

[0040] like Figure 5 and Figure 6As shown, the top plate rotating pair 6 includes a top plate pad 14 and a top plate rotating pair connecting plate 13 connected in sequence. The installation direction of the top plate pad 14 is parallel to the left and right direction of the top plate 1, and is welded and fixedly connected to the lower surface of the top plate 1. The two top plate rotating pair connecting plates 13 are symmetrically fixedly installed at both ends of the top plate pad 14 by bolts. The lower ends of the two top plate rotating pair connecting plates 13 are connected to the upper end of the upper folding plate 2 through a pin shaft, and the upper folding plate 2 can rotate around the axial joint of the top plate rotating pair connecting plate 13. The three shock absorbers 9 are symmetrically fixedly installed on the lower surface of the top plate 1, and the surface of the top plate pad 14 is covered with a sealed and dust-proof felt 15.

[0041] like Figure 7 and Figure 8 As shown, the gear rotation pair 7 includes an upper folding plate meshing gear 72, a lower folding plate meshing gear 71, and a fixed plate 73 connected in sequence. The upper folding plate meshing gear 72 is fixedly connected to the lower end of the upper folding plate 2 by bolts, and the lower folding plate meshing gear 71 is fixedly connected to the upper end of the lower folding plate 3 by bolts. The upper folding plate meshing gear 72 and the lower folding plate meshing gear 71 are normally meshed. The center of the upper folding plate meshing gear 72 and the center of the lower folding plate meshing gear 71 are fixedly connected by the fixed plate 73, and the center of the fixed plate 73 and the center of the upper folding plate meshing gear 72 and the center of the lower folding plate meshing gear 71 are all fixedly connected by bolts, and the center distance between the upper folding plate meshing gear 72 and the lower folding plate meshing gear 71 is constant, the upper folding plate meshing gear 72 and the lower folding plate meshing gear 71 have the same number of teeth, and the upper folding plate 2 and the lower folding plate 3 can rotate one to one.

[0042] like Figure 9 and Figure 10 As shown, the wall panel rotating pair 8 includes a wall panel pad 43 and a wall panel rotating pair connecting plate 42 connected in sequence. The installation direction of the wall panel pad 43 is parallel to the left and right direction of the wall panel 4 and is fixedly connected to the upper surface of the wall panel 4. The two wall panel rotating pair connecting plates 42 are symmetrically fixed to the two ends of the wall panel pad 43 by bolts. The upper ends of the two wall panel rotating pair connecting plates 42 are connected to the lower end of the lower folding plate 3 by a pin shaft, and the lower folding plate 3 can rotate around the axial joint of the wall panel rotating pair connecting plate 42. The three shock absorbers 9 are symmetrically fixed to the upper surface of the wall panel 4. The lower surface of the wall panel 4 is fixed to the bottom plate 46 by bolts. The surface of the wall panel pad 43 is covered with felt 44, and the wall panel 4 is provided with a support column 45.

[0043] like Figure 12 As shown, the working mode of the shelter lifting and folding plate is a gear transmission lifting, unfolding, and retracting process. The natural state of the shelter lifting and folding plate is the closed state, and the final working state of the shelter lifting and folding plate is the fully unfolded state. The working steps of the shelter lifting and folding plate are as follows:

[0044] (1) Figure 11 The figure shows the initial state of the cabin lifting and folding plate. In the initial state, the cabin lifting and folding plate is in a closed state. In the initial state, the lifting mechanism 5 is in the initial shortest position. At this time, the limiting hole 12 in the limiting column 11 on the top plate 1 is aligned and matched with the protruding column 41 on the wall panel 4, and the lower surface of the limiting column 11 is kept close to the upper surface of the wall panel 4, thereby limiting the position between the top plate 1 and the wall panel 4. The upper folding plate 2 and the lower folding plate 3 are kept in a folded, close and aligned state. The top plate rotating pair 6 and the wall panel rotating pair 8 are kept close and aligned in the height direction. The three shock-absorbing dampers 9 installed on the top plate 1 are close to the surface of the upper folding plate 2, and the three shock-absorbing dampers 9 installed on the wall panel 4 are close to the surface of the lower folding plate 3.

[0045] (2) During the gear-driven lifting and unfolding of the cabin's folding and lifting panels, the two lifting mechanisms 5 gradually and synchronously rise from their initial shortest positions under the control of the system. The two ends of the lifting mechanisms 5 are fixedly connected to the top plate 1 and the bottom plate 46 by bolts to constrain the relative positions of the top plate 1 and the bottom plate 46, while the relative positions of the wall panels 4 and the ground remain fixed. Under the positional constraints of the lifting mechanisms 5, the top plate 1 is lifted in the height direction, and the top plate 1 and the wall panels 4 remain aligned. After the top plate 1 is lifted to a certain height, since the top plate rotating pair 6 is fixed to the lower surface of the top plate 1 and the wall plate rotating pair 8 is fixed to the upper surface of the wall plate 4, the wall plate rotating pair 8 remains stationary, and the top plate rotating pair 6 is lifted to a certain height and remains aligned with the wall plate rotating pair 8. Under the constraints of the geometric relationship of the mechanism, the upper folding plate 2 rotates clockwise around the top plate rotating pair 6, and the upper folding plate 2 and the lower folding plate 3 achieve relative rotational motion through the motion constraint of the gear rotating pair 7. The lower folding plate 3 rotates counterclockwise around the wall plate rotating pair 8, and the folding plate gradually unfolds until it is fully unfolded. Finally, the two lifting mechanisms 5 reach the limit synchronous lifting position, and finally the complete process of gear transmission lifting and unfolding of the folding plate is realized.

[0046] (3) Figure 4 The figure shows the final working state of the cabin lifting and folding plates, that is, the fully expanded state. In this state, the lifting mechanism 5 is in the extreme lifting position, the upper folding plate 2 and the lower folding plate 3 are kept in a fully expanded and aligned state, the upper folding plate 2 is kept perpendicular to the lower surface of the top plate 1, the lower folding plate 3 is kept perpendicular to the upper surface of the wall plate 4, and the top plate rotating pair 6, the wall plate 4 and the gear rotating pair 7 are in a straight line.

[0047] (4) During the retraction of the gear transmission of the cabin's lifting and folding panels, the two lifting mechanisms 5 gradually and synchronously retract from the maximum lifting position under the control of the system. The two ends of the lifting mechanisms 5 are fixedly connected to the top plate 1 and the bottom plate 46 by bolts to constrain the relative position of the top plate 1 and the bottom plate 46, and the relative position of the wall plate 4 to the ground remains fixed. Under the position constraint of the lifting mechanism 5, the top plate 1 is lowered in the height direction, and the top plate 1 and the wall plate 4 remain aligned. After the top plate 1 is lowered in height, since the top plate rotating pair 6 is fixed to the lower surface of the top plate 1 and the wall plate rotating pair 8 is fixed to the upper surface of the wall plate 4, the wall plate rotating pair 8 remains stationary, the top plate rotating pair 6 is lowered in height and remains aligned with the wall plate rotating pair 8. Under the constraints of the geometric relationship of the mechanism, the upper folding plate 2 rotates counterclockwise around the top plate rotating pair 6, and the upper folding plate 2 and the lower folding plate 3 rotate relative to each other through the motion constraint of the gear rotating pair 7. The lower folding plate 3 rotates clockwise around the wall plate rotating pair 8, and the folding plate gradually retracts until it is fully folded and closed. When the two lifting mechanisms 5 reach the initial shortest position, the top plate rotating pair 6 and the wall plate rotating pair 8 remain close and aligned in the height direction. The three shock-absorbing dampers 9 installed on the top plate 1 are close to the surface of the upper folding plate 2, and the three shock-absorbing dampers 9 installed on the wall plate 4 are close to the surface of the lower folding plate 3. The support and vibration reduction design after folding provides safety and buffering during the gear transmission retraction process, and finally realizes the complete process of gear transmission retraction of the folding plate.

[0048] The present invention provides a shelter liftable folding panel. There are numerous methods and approaches for implementing this technical solution. The above is merely a preferred embodiment of the present invention. It should be noted that those skilled in the art may make various improvements and modifications without departing from the principles of the present invention, and such improvements and modifications are also within the scope of protection of the present invention. Any components not specified in this embodiment may be implemented using existing technologies.

Claims

1. A shelter lifting folding plate, comprising a top plate (1), an upper folding plate (2), a lower folding plate (3), a wall plate (4) and a lifting mechanism (5), characterized in that: The top plate (1) is rotatably connected to the upper folding plate (2) via a top plate rotating pair (6), the upper folding plate (2) is rotatably connected to the lower folding plate (3) via a gear rotating pair (7), and the lower folding plate (3) is rotatably connected to the wall plate (4) via a wall plate rotating pair (8). The upper end of the lifting mechanism (5) is fixedly connected to the top plate (1), and the lower end of the lifting mechanism (5) is fixed to the bottom plate (46). The lifting mechanism (5) is a telescopic structure.

2. The shelter lifting and folding plate according to claim 1, characterized in that: The top plate rotating pair (6) includes a top plate pad (14) and a top plate rotating pair connecting plate (13); the top plate pad (14) is connected to the top plate (1), and the installation direction of the top plate pad (14) is kept parallel to the left and right directions of the top plate (1); the two top plate rotating pair connecting plates (13) are respectively connected to the two ends of the top plate pad (14); the two top plate rotating pair connecting plates (13) are respectively connected to the two ends of the folding plate (2); and the upper folding plate (2) can rotate around the connection point of the top plate rotating pair connecting plate (13).

3. The shelter lifting and folding plate according to claim 2, characterized in that: The gear rotation pair (7) comprises an upper folding plate meshing gear (72), a lower folding plate meshing gear (71) and a fixed plate (73); the upper folding plate meshing gear (72) is connected to the lower end of the upper folding plate (2), the lower folding plate meshing gear (71) is connected to the upper end of the lower folding plate (3), the upper folding plate meshing gear (72) and the lower folding plate meshing gear (71) are meshed with each other, and the upper folding plate meshing gear (72) and the lower folding plate meshing gear (71) are rotationally connected via the fixed plate (73).

4. The shelter lifting and folding plate according to claim 3, characterized in that: The modules and the number of teeth of the folding plate meshing gear (72) and the lower folding plate meshing gear (71) are the same.

5. The shelter lifting and folding plate according to claim 4, characterized in that: The wall panel rotation pair (8) comprises a wall panel pad (43) and a wall panel rotation pair connecting plate (42); the wall panel pad (43) is connected to the wall panel (4); the installation direction of the wall panel pad (43) is kept parallel to the left-right direction of the wall panel (4); the two wall panel rotation pair connecting plates (42) are respectively connected to the two ends of the wall panel pad (43); the two wall panel rotation pair connecting plates (42) are respectively connected to the two ends of the lower folding plate (3); and the lower folding plate (3) can rotate around the connection point of the wall panel rotation pair connecting plates (42).

6. The shelter lifting and folding plate according to claim 5, characterized in that: A plurality of shock-absorbing dampers (9) are symmetrically provided on one side of the top plate (1) close to the wall plate (4); the same number of shock-absorbing dampers (9) are symmetrically provided on one side of the wall plate (4) close to the top plate (1); a limiting column (11) is provided on one side of the top plate (1) close to the wall plate (4); a limiting hole (12) is provided inside the limiting column (11); and a convex column (41) that matches the limiting hole (12) is provided on one side of the wall plate (4) close to the top plate (1).

7. The shelter lifting and folding plate according to claim 6, characterized in that: The shock absorber (9) fixed to the top plate (1) and the shock absorber fixed to the wall plate (4) are aligned in the same direction, and the protruding column (41) and the limiting hole (12) are aligned and located on the same straight line.

8. The shelter lifting and folding plate according to claim 7, characterized in that: The distances between adjacent shock absorbing dampers (9) are the same.

9. The shelter lifting and folding plate according to claim 2, characterized in that: The surface of the top plate pad (14) is covered with felt (15).

10. The shelter lifting and folding plate according to claim 1, characterized in that: The top plate (1) and the wall plate (4) are locked in motion by the cooperation of the convex column (41) and the limiting hole (12) and the self-locking of the lifting mechanism.

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