A foldable stable

Abstract

This application provides a foldable stable, wherein the first and third side walls of the foldable stable are arranged opposite each other along a first direction; the second and fourth side walls are arranged opposite each other along a second direction, the second side wall includes a plurality of second wall panels, the second wall panels are fixed to each other by bidirectional hinges on their respective sides, and the second and fourth side walls have the same structure; the first side of the first side wall is fixed to the second side of the second side wall by a bidirectional hinge; the first side of the second side wall is fixed to the second side of the third side wall by a bidirectional hinge; the first side of the third side wall is fixed to the second side of the fourth side wall by a bidirectional hinge; the first side of the fourth side wall is fixed to the second side of the first side wall by a bidirectional hinge; the second and fourth side walls are folded along the second direction by bidirectional hinges, so that the overall width along the second direction is reduced to 10% to 20% of the unfolded state. According to the technical solution of this application, the stable's volume is significantly reduced by folding to fit the size of a standard shipping container.

Description

Technical Field

[0001] This application relates to the technical field of horse stables and similar buildings, and more specifically, to a foldable stable. Background Technology

[0002] Traditional fixed stables, such as brick-and-mortar or steel structures, are expensive to build and have construction periods of 3 to 6 months, which greatly limits their ability to respond quickly in emergencies. Furthermore, the fixed nature of traditional structures makes them unsuitable for rapid deployment and reuse, which is particularly disadvantageous in temporary events or unforeseen incidents. Enclosed brick-and-mortar structures can lead to poor ventilation and ammonia buildup; according to a 2021 report in the *Journal of Equine Health Science*, such environments can increase the incidence of respiratory diseases in animals by 12%–18%.

[0003] Existing folding stables still occupy 30%-50% of their unfolded volume when folded, and they are not optimized for standard container sizes, making them unsuitable for standard container sizes. The existing hinge design is unable to withstand weights exceeding 1500kg and cannot effectively cope with animal impacts. At the same time, the noise generated by the metal hinges may cause stress reactions in animals, affecting their health and comfort.

[0004] Therefore, a technical solution is needed to achieve efficient three-dimensional folding, optimize logistics compatibility, and improve structural strength and horse-friendly characteristics. Utility Model Content

[0005] This application aims to provide a foldable stable, which significantly reduces its volume when folded to fit standard container dimensions, while also being designed to effectively increase load-bearing strength and reduce operating noise.

[0006] According to one aspect of this application, a foldable stable is provided, characterized in that it includes a first side wall, a second side wall, a third side wall, and a fourth side wall:

[0007] The first sidewall and the third sidewall are disposed opposite to each other along a first direction;

[0008] The second sidewall and the fourth sidewall are arranged opposite to each other along the second direction. The second sidewall includes a plurality of second wall panels, which are fixed to each other by bidirectional hinges on their respective sides. The second sidewall and the fourth sidewall have the same structure.

[0009] The first side of the first sidewall is fixed to the second side of the second sidewall by a two-way hinge;

[0010] The first side of the second sidewall is fixed to the second side of the third sidewall by a two-way hinge;

[0011] The first side of the third sidewall is fixed to the second side of the fourth sidewall by a two-way hinge;

[0012] The first side of the fourth sidewall is fixed to the second side of the first sidewall by a two-way hinge;

[0013] The second sidewall and the fourth sidewall are folded along the second direction via the bidirectional hinge, reducing the overall width along the second direction to 10% to 20% of the unfolded state.

[0014] According to some embodiments, it further includes a first partition and a second partition, which are disposed at the middle position enclosed by the first side wall, the second side wall, the third side wall and the fourth side wall:

[0015] The first side of the first partition is connected to the second side wall, and the second side of the first partition is connected to the fourth side wall;

[0016] The second partition is disposed between the first side wall and the first partition, and between the third side wall and the first partition.

[0017] According to some embodiments, the two-way hinge includes a hinge screw and nut;

[0018] The bidirectional hinge comprises two galvanized plates with shaft holes, and a bolt passes through the middle of the two galvanized plates with shaft holes.

[0019] According to some embodiments, the bidirectional hinge includes nylon washers disposed at both ends of the bolts of the bidirectional hinge.

[0020] According to some embodiments, the first sidewall includes a door;

[0021] One side of the door is fixed to the first sidewall by a two-way hinge;

[0022] The first sidewall and the third sidewall have the same structure.

[0023] According to some embodiments, the second wall panel includes a second wall panel with hooks and a second wall panel without hooks;

[0024] The second sidewall and the fourth sidewall have the same structure.

[0025] According to some embodiments, the first partition is a fixed intermediate wall panel;

[0026] The second partition includes multiple movable intermediate wall panels, which are connected to each other by insert plates.

[0027] According to some embodiments, the tarpaulin and a tarpaulin lifting structure are also included, wherein the tarpaulin lifting structure is fixed to the first partition by screws and nuts, and the tarpaulin is lifted and lowered by the tarpaulin lifting structure.

[0028] According to some embodiments, a water-proof structure is also included, which is fixed to the first sidewall by screws and nuts.

[0029] According to some embodiments, the anti-water accumulation structure includes a crossbar and a connecting rod. One end of the connecting rod is connected to the crossbar of the anti-water accumulation structure by a screw and nut, and the other end of the connecting rod is connected to the side of the first sidewall by a screw and nut. The side of the first sidewall is provided with a slide rail. When the anti-water accumulation structure is folded, the slide rail allows the connecting rod to move.

[0030] According to the example embodiment, a space structure that can be unfolded and retracted is formed by combining multiple wall panels and a tarpaulin. The wall panels are connected by two-way hinges, allowing adjacent wall panels to fold in both directions, greatly improving the flexibility of the structure. The two-way hinges support bidirectional folding, adapting to different terrains and folding paths; the fully mechanical structure facilitates on-site assembly and disassembly, making it particularly suitable for field operations in environments without power resources.

[0031] According to some embodiments, the door structure is located on the first side wall, providing an access passage and a sealing and locking function. The combination of wall panels with and without hooks facilitates the hanging and quick installation of tarpaulins. The first partition and the second partition are set in the middle of the stable, serving to separate and enhance rigidity, respectively.

[0032] It should be understood that the above general description and the following detailed description are merely exemplary and do not limit the present invention. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0034] Figure 1 An exploded view of a foldable stable is shown according to an example embodiment.

[0035] Figure 2 A schematic diagram of the overall assembly of a foldable stable is shown according to an example embodiment.

[0036] Figure 3 A schematic diagram of the internal structure of a foldable stable is shown according to an example embodiment.

[0037] Figure 4 A front view of the folded stable in a folded state according to an example embodiment is shown.

[0038] Figure 5A side view of the folded stable, according to an example embodiment, is shown.

[0039] Figure 6 A schematic diagram of a bidirectional hinge according to an example embodiment is shown.

[0040] Figure 7 A partially enlarged schematic diagram of a waterproof structure according to an example embodiment is shown. Detailed Implementation

[0041] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, they are provided so that this invention will be thorough and complete, and will fully convey the concept of the exemplary embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar parts, and therefore repeated descriptions of them will be omitted.

[0042] Furthermore, the described features, structures, or characteristics can be combined in any suitable manner in one or more embodiments. Numerous specific details are provided in the following description to give a full understanding of embodiments of the present invention. However, those skilled in the art will recognize that the technical solutions of the present invention can be practiced without one or more of the specific details.

[0043] The block diagrams shown in the accompanying drawings are merely functional entities and do not necessarily correspond to physically independent entities. For example, these functional entities may be implemented in one or more hardware modules or integrated circuits, or in different network and / or processor devices and / or microcontroller devices.

[0044] The flowcharts shown in the accompanying drawings are merely illustrative and do not necessarily include all content and operations / steps, nor do they necessarily have to be performed in the described order. For example, some operations / steps can be broken down, while others can be combined or partially combined; therefore, the actual execution order may change depending on the specific circumstances.

[0045] It should be understood that although the terms first, second, third, etc., may be used herein to describe various components, these components should not be limited by these terms. These terms are used to distinguish one component from another. Therefore, the first component discussed below may be referred to as the second component without departing from the teachings of this utility model. As used herein, the term "and / or" includes all combinations of any one and more of the associated listed items.

[0046] Existing folding stables still occupy 30%-50% of their unfolded volume when folded, and they are not optimized for standard container sizes, making them unsuitable for standard container sizes. The existing hinge design is unable to withstand weights exceeding 1500kg and cannot effectively cope with animal impacts. At the same time, the noise generated by the metal hinges may cause stress reactions in animals, affecting their health and comfort.

[0047] To overcome the above problems, this application proposes a foldable stable.

[0048] The following description, in conjunction with the accompanying drawings, illustrates exemplary embodiments of this application.

[0049] Figure 1 An exploded view of a foldable stable is shown according to an example embodiment.

[0050] See Figure 1 According to an example embodiment, the foldable stable includes a tarpaulin 1, a first sidewall 13, a second sidewall 5, a third sidewall 3, a fourth sidewall 15, a first partition 6, and a second partition 9. The first sidewall 13 and the third sidewall 3 are arranged opposite each other along a first direction; the second sidewall 5 and the fourth sidewall 15 are arranged opposite each other along a second direction. The second sidewall 5 includes a plurality of second wall panels, including a second wall panel 14 with hooks and a second wall panel 4 without hooks. The second wall panels are fixed to each other by bidirectional hinges on their respective sides. The second sidewall 5 and the fourth sidewall 15 have the same structure.

[0051] According to some embodiments, the first sidewall 13 includes a door 8. The first side of the first sidewall 13 is fixed to the second side of the second sidewall 5 via a two-way hinge 7. The first side of the second sidewall 5 is fixed to the second side of the third sidewall 3 via a two-way hinge 7. The first side of the third sidewall 3 is fixed to the second side of the fourth sidewall 15 via a two-way hinge 7. The first side of the fourth sidewall 15 is fixed to the second side of the first sidewall via a two-way hinge 7. The tarpaulin 1 is fixedly connected to the second wall panel 14 with hooks. The second sidewall 5 and the fourth sidewall 15 are folded along a second direction via the two-way hinges, reducing the overall width along the second direction to 10%–20% of the unfolded state.

[0052] According to some embodiments, a first partition 6 and a second partition 9 are disposed in the middle position enclosed by the first side wall 13, the second side wall 5, the third side wall 3, and the fourth side wall 15. The first partition 6 is a fixed intermediate wall panel, and the second partition 9 is a movable intermediate wall panel. The first side of the first partition 6 is connected to the second side wall 5, and the second side of the first partition 6 is connected to the fourth side wall 15. The second partition 9 are respectively disposed between the first side wall 13 and the first partition 6, and between the third side wall 3 and the first partition 6. The second partitions 9 are connected to each other by insert plates 10.

[0053] According to some embodiments, the anti-water accumulation structure 2 is installed below the tarpaulin 1 and is fixed to the bushings above the first side wall 13 and the third side wall 3 by screws and nuts. The anti-water accumulation structure ensures that rainwater will not accumulate on the tarpaulin and prevents leakage. See the overall assembly diagram of the foldable stable for details. Figure 2 The tarpaulin 1 covers the top of the stable and is secured by hooks on a second wall panel with hooks. The tarpaulin is designed for waterproofing and sunshade. See the enlarged diagram of the two-way hinge at point A. Figure 6 .

[0054] According to some embodiments, see the schematic diagram of the internal structure of the foldable stable. Figure 3 The first sidewall 13 includes a door 8 and a door lock. One side of the door 8 is fixed to the first sidewall via a two-way hinge, and the other side of the door 8 is fixed to the first sidewall via the door lock. The door 8 is installed on the first sidewall 13 for easy access. A insert plate 10 is used to secure the connection between the movable second partition 9, ensuring structural stability. The tarpaulin lifting structure 11 is connected to the first partition 6 via screws and nuts, used to adjust the height of the tarpaulin, providing better ventilation and sunshade. See the enlarged schematic diagram of the waterproof structure at point C. Figure 7 .

[0055] In some embodiments, the insert plate can be replaced by a gravity-operated self-locking buckle, and the fixing between the wall panels is based on a slider buckle system under gravity. After unfolding into place, the sliders located at key connection points automatically fall along the inclined track due to their own weight and embed into the preset slots, completing the automatic locking. The operation process is simple and quick; the user only needs to fully unfold the structure, and the locking is completed automatically, improving ease of use.

[0056] In this embodiment, the locking method has been changed from "manual insertion and removal" to "automatic gravity locking," but the ultimate function remains the same: providing stable support and preventing accidental folding in the unfolded state. This meets the core requirements of stability and safety for the stable structure during use.

[0057] Figure 6 A schematic diagram of a bidirectional hinge according to an example embodiment is shown.

[0058] According to an example embodiment, the two-way hinge includes a hinge screw and nut; a schematic diagram of the two-way hinge can be found here. Figure 6 The bidirectional hinge comprises two galvanized steel plates 401 with shaft holes, with a bolt 403 passing through the middle of the two galvanized steel plates 401. The bolt 403 is a high-strength bolt, with a single hinge bearing capacity of ≥800kg. Calculated based on 4 hinges per wall panel, the overall bearing capacity is 3200kg, far exceeding the impact force requirements of horses. Traditional hinges have a low upper limit of bearing capacity (<1500kg). According to measured data from the *Journal of Animal Husbandry Engineering* in 2022, the peak impact force of a horse is 2400N, which can easily lead to hinge breakage or wall deformation. The bidirectional hinge in this embodiment has an impact resistance of ≥2400N, significantly improving locking reliability.

[0059] According to the example embodiment, the bidirectional hinge also includes nylon gaskets 411, which are disposed at both ends of the bolts 403 of the bidirectional hinge. Lubricating grease is applied to the inside of the hinge to increase folding smoothness and hinge lifespan.

[0060] Optionally, the nylon pad can be replaced by an elastic pad, which can be made of polyurethane or rubber material. Alternatively, the elastic deformation of the elastic pad can reduce friction noise and control the noise level to ≤25dB, thus meeting animal-friendly requirements.

[0061] According to some embodiments, the folding resistance is adjusted by the bolt preload, and the manual operating force is ≤50N. Each wall panel is fixedly connected by a two-way hinge. During folding, the panels fold along the X-axis. First, the locking devices of the upper and lower inserts on all wall panels are manually released to ensure that adjacent wall panels can move freely. The adjacent wall panels are then pushed inward along the hinges on the X-axis. This involves the folding action between the first sidewall 13, the second wall panel 4 without hooks, the second wall panel 14 with hooks, and the first partition 6.

[0062] During the folding process, the wall width will be reduced by approximately 50%, meaning the entire structure will be halved in width. After folding along the X-axis, the side wall panels need to be folded inward along the Y-axis hinges. This step will further reduce the wall width by approximately 45%. See the diagram for a schematic of the folded stable's folded state. Figure 4 , Figure 5 .

[0063] According to some embodiments, this folding method not only reduces the width of the stable but also greatly reduces the overall volume, making it easier to adapt to standard logistics transportation tools, such as 40-foot containers.

[0064] According to some embodiments, existing single hinges can be replaced with multi-segment folding hinges, replacing single hinges with three-bar hinge groups, such as parallelogram mechanisms. Multiple folding segments achieve the same compression ratio while distributing stress points and improving impact resistance. Although the hinge shape changes, folding and volume compression along the X and Y axes can still be achieved through multi-segment linkage.

[0065] Furthermore, while maintaining the XY-axis folding, a Z-axis, or thickness-direction, layering folding mechanism is introduced. By increasing the folding action of the wall panels along the Z-axis, the overall volume of the stable is further compressed to 8% of its original volume. A third dimension of folding is added to the existing two-dimensional planar folding, making the overall structure even more compact.

[0066] By adding a folding dimension, namely folding along the Z-axis, storage and transportation space can be utilized more efficiently, making it particularly suitable for applications with extremely strict space requirements.

[0067] The stable can also be folded using a spiral folding method, where the wall panels are folded spirally around a central column. This folding method results in a final cylindrical shape, providing a novel spatial solution. Compared to XY-axis folding methods, spiral folding also achieves a high volume compression rate.

[0068] Both Z-axis assisted folding and spiral folding are alternatives designed to improve the space utilization of traditional folding technologies while maintaining or enhancing their convenience and practicality. The choice depends on the specific application scenario. Z-axis assisted folding is more suitable for environments requiring minimal floor space, significantly reducing the required space through three-dimensional folding. Spiral folding offers an innovative perspective, changing the final folded shape to a cylinder, which can be optimized for storage and transportation.

[0069] Figure 7 A partially enlarged schematic diagram of a waterproof structure according to an example embodiment is shown.

[0070] See Figure 7 The anti-water accumulation structure includes a crossbar 501 and a connecting rod 503. One end of the connecting rod is connected to the crossbar of the anti-water accumulation structure by a screw and nut, and the other end of the connecting rod is connected to the side of the first side wall by a screw and nut. The side of the first side wall is provided with a slide rail 505. When the anti-water accumulation structure is folded, the slide rail allows the connecting rod to move.

[0071] According to some embodiments, the anti-water accumulation structure is fixed to a bushing above the first sidewall by screws and nuts. The bushing is made of metal and has high strength and wear resistance. The connecting rod adopts a folding hinge design, with both ends of the connecting rod connected to slide rails on the anti-water accumulation structure and the wall panel, respectively. This design allows the anti-water accumulation structure to move along a predetermined trajectory during unfolding and folding. The length of the connecting rod is adjustable, and the positioning of the anti-water accumulation structure in different states can be achieved by adjusting the hinge angles at both ends of the connecting rod.

[0072] When the stable is in the extended position, the waterproofing structure is stretched to its highest point via connecting rods. These connecting rods and the sliding rails on the wall panels form a stable support structure, keeping the waterproofing structure horizontal. The waterproofing structure, along with the crossbars and connecting rods, forms an inclined surface, creating a drainage slope. Rainwater flows down the tarpaulin and quickly drains along the surface of the waterproofing structure, preventing water accumulation.

[0073] When the stable needs to be folded, the connecting rod gradually shortens, causing the waterproofing structure to retract inward along the slide rail. The hinge between the connecting rod and the slide rail allows the waterproofing structure to change its angle during retraction, avoiding interference with other structures. The waterproofing structure is completely retracted into the wall panel, occupying no external space. At this point, the wall panel surface is flat, facilitating the overall folding and transportation of the stable.

[0074] The connecting rods are made of high-strength aluminum alloy or stainless steel to ensure sufficient rigidity and corrosion resistance. A locking mechanism is installed between the connecting rods and the slide rails to ensure that the anti-water accumulation structure remains stable in the unfolded state. The anti-water accumulation structure achieves automatic switching between unfolded and folded states through the ingenious connection between the connecting rods and the wall panels, while also allowing for simple and convenient manual operation.

[0075] In some embodiments, the crossbars in the anti-water accumulation structure can be replaced by foldable, flexible water-guiding eaves, which automatically curl and retract when folded. By using flexible material deformation instead of rigid sliding rail extension, the drainage slope can still be adaptive. Furthermore, the main ceiling beam can be fitted with an elastic waterproof fabric, which automatically tightens to form a drainage slope when unfolded.

[0076] The flexible material's deformation capability enables a functional substitution for drainage, achieving the core functions of adaptive drainage slope and rapid drainage without relying on traditional mechanical structures. Therefore, it possesses functional equivalence in terms of technical effectiveness and application scenarios, making it particularly suitable for applications requiring lightweight and compact folding.

[0077] According to some embodiments, the unfolding procedure of the folding stable involves releasing the transport state latch to release the wall panels. The wall panels are unfolded along the X-axis, and insert plates are used for fixation. The first side wall 13, the second wall panel 4 without hooks, the second wall panel 14 with hooks, and the intermediate movable wall panel 9 are then stretched outwards along the X-axis to their predetermined positions. Insert plates 10 are used to insert into the joints between the wall panels to ensure they are securely fixed together. The insert plates should be inserted into the corresponding holes at the bottom and top of the wall panels and tightened with screws and nuts.

[0078] Install the first partition and door. Place the first partition 6 in the designated position and fix it to the adjacent wall panel with screws and nuts. Install the door 8 in the reserved door frame position on the first side wall 13, and ensure that the door can open and close smoothly.

[0079] Install the tarpaulin and waterproofing structure. Cover the stable roof frame with the tarpaulin and secure the edges with hooks on the second wall panel with hooks. Install the waterproofing structure under the tarpaulin to ensure that rainwater or other liquids do not accumulate on the tarpaulin, thus preventing leaks.

[0080] Adjust the tarpaulin lifting mechanism as needed to allow the tarpaulin to be adjusted up and down according to weather conditions, providing better ventilation and sun shading. Check all wall panels, inserts, screws, nuts, and other connection points to ensure they are securely fastened.

[0081] This embodiment employs a non-electric drive method. Compared to existing hydraulic folding systems that require external power or hydraulic pumps, it uses manual locking plates. Specifically, the plates lock and fix the X-axis folding, and the Y-axis frame. No electricity or tools are needed, and a single person can complete the operation within 10 minutes. This enables rapid deployment and low-cost maintenance of the mobile stable, making it particularly suitable for complex scenarios such as power outages, disaster relief, and mountainous areas.

[0082] The foldable stable proposed in this embodiment of the utility model achieves efficient three-dimensional folding, optimizes logistics compatibility, adopts a two-way hinge linkage design, and compresses the volume after folding to 10%-20% of the unfolded state through axial folding, which is fully compatible with standard 40-foot containers and reduces transportation costs by more than 50%.

[0083] Utilizing a custom-designed hinge structure, the metal material undergoes heat treatment to enhance its strength and wear resistance. The hinge's load-bearing capacity is ≥2000kg, meeting the safety threshold for horse impact forces. Nylon pads are added inside the hinge, along with grease for increased lubrication. The noise level during the folding and unfolding of the stable is ≤25dB, below the animal's hearing sensitivity threshold. This overcomes the shortcomings of traditional hinges, such as insufficient strength and excessive noise.

[0084] Those skilled in the art will clearly understand that the terms "unit" and "module" in this specification refer to hardware capable of performing a specific function independently or in conjunction with other components.

[0085] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0086] In the several embodiments provided by this utility model, it should be understood that the disclosed apparatus can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some service interface; the indirect coupling or communication connection between devices or units may be electrical or other forms.

[0087] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0088] Exemplary embodiments of the present invention have been specifically shown and described above. It should be understood that the present invention is not limited to the detailed structures, arrangements, or implementation methods described herein; rather, the present invention is intended to cover various modifications and equivalent arrangements contained within the spirit and scope of the appended provisions.

Claims

1. A foldable stable, characterized in that, Including the first sidewall, second sidewall, third sidewall, and fourth sidewall: The first sidewall and the third sidewall are disposed opposite to each other along a first direction; The second sidewall and the fourth sidewall are arranged opposite to each other along the second direction. The second sidewall includes a plurality of second wall panels, which are fixed to each other by bidirectional hinges on their respective sides. The second sidewall and the fourth sidewall have the same structure. The first side of the first sidewall is fixed to the second side of the second sidewall by a two-way hinge; The first side of the second sidewall is fixed to the second side of the third sidewall by a two-way hinge; The first side of the third sidewall is fixed to the second side of the fourth sidewall by a two-way hinge; The first side of the fourth sidewall is fixed to the second side of the first sidewall by a two-way hinge; The second sidewall and the fourth sidewall are folded along the second direction via the bidirectional hinge, reducing the overall width along the second direction to 10% to 20% of the unfolded state.

2. The foldable stable according to claim 1, characterized in that, It also includes a first partition and a second partition, which are disposed in the middle position enclosed by the first side wall, the second side wall, the third side wall and the fourth side wall: The first side of the first partition is connected to the second side wall, and the second side of the first partition is connected to the fourth side wall; The second partition is disposed between the first side wall and the first partition, and between the third side wall and the first partition.

3. The foldable stable according to claim 1, characterized in that, The two-way hinge includes a hinge screw and nut; The bidirectional hinge comprises two galvanized plates with shaft holes, and a bolt passes through the middle of the two galvanized plates with shaft holes.

4. The foldable stable according to claim 3, characterized in that, The bidirectional hinge includes nylon washers disposed at both ends of the bolts of the bidirectional hinge.

5. The foldable stable according to claim 1, characterized in that, The first sidewall includes a door; One side of the door is fixed to the first sidewall by a two-way hinge; The first sidewall and the third sidewall have the same structure.

6. The foldable stable according to claim 1, characterized in that, The second wall panel includes a second wall panel with hooks and a second wall panel without hooks; The second sidewall and the fourth sidewall have the same structure.

7. The foldable stable according to claim 2, characterized in that, The first partition is a fixed intermediate wall panel; The second partition includes multiple movable intermediate wall panels, which are connected to each other by insert plates.

8. The foldable stable according to claim 1, characterized in that, It also includes a tarpaulin and a tarpaulin lifting structure, wherein the tarpaulin lifting structure is fixed to the first partition by screws and nuts, and the tarpaulin is lifted and lowered by the tarpaulin lifting structure.

9. The foldable stable according to claim 1, characterized in that, It also includes a water-proof structure, which is fixed to the first side wall by screws and nuts.

10. The foldable stable according to claim 9, characterized in that, The anti-water accumulation structure includes a crossbar and a connecting rod. One end of the connecting rod is connected to the crossbar of the anti-water accumulation structure by a screw and nut, and the other end of the connecting rod is connected to the side of the first side wall by a screw and nut. The side of the first side wall is provided with a slide rail. When the anti-water accumulation structure is folded, the slide rail allows the connecting rod to move.

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