Chute plug-and-play folding cat ear hole
The modular design of the slide-in folding cat-ear tunnel solves the problem of time-consuming and labor-intensive construction of traditional cat-ear tunnels, enabling rapid deployment and efficient protection, improving structural stability and resource utilization, and adapting to the needs of multiple scenarios.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-31
- Publication Date
- 2026-03-31
AI Technical Summary
Traditional foxhole construction is time-consuming and labor-intensive, has poor structural stability and protective performance, is difficult to deploy quickly, wastes resources seriously, and cannot effectively protect combat personnel in emergency situations, resulting in insufficient protection capabilities.
The system employs a sliding, plug-in, foldable cat-ear-shaped tunnel, utilizing components such as plug-in composite floor panels, plug-in composite wall panels, connecting steel sheets, composite sealing baffles, and entrance protection doors. Combined with light steel keel and camouflage coating, it constructs a quick-disassembly prefabricated structure.
It enables rapid deployment and dismantling, improves structural stability and protection, enhances concealment and resource utilization, adapts to changes in military strategy, and protects the safety of combat personnel.
Smart Images

Figure CN224064026U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of military fortification technology, and in particular to a sliding groove folding cat ear hole. Background Technology
[0002] In military operations, catacombs, as temporary and simple defensive fortifications, played an important role.
[0003] Traditional foxholes are typically constructed on-site by manual excavation and material stacking. This method, relying entirely on manual excavation and construction, is extremely time-consuming and labor-intensive. Especially in emergencies, it cannot quickly provide effective protective shelter for combat personnel. Furthermore, due to the significant influence of human factors and site conditions during construction, foxholes built by different personnel vary considerably in structural stability and protective performance, making it difficult to guarantee overall quality standards. In addition, traditional foxholes are difficult to move once built. If military strategy changes or relocation is required, the original foxholes cannot be reused, resulting in resource waste. Moreover, relying solely on locally sourced materials and simple construction methods makes foxholes relatively weak in protecting against artillery shell impacts and gunfire, failing to adequately guarantee the safety of combat personnel. Therefore, a sliding, plug-in, folding foxhole design is proposed to address these problems. Utility Model Content
[0004] The purpose of this application is to provide a slotted, plug-in, foldable cat-ear hole to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this application provides the following technical solution: a sliding groove folding cat ear hole, including a plug-in composite floor panel, wherein the upper end of the plug-in composite floor panel is provided with limit grooves parallel to both long sides.
[0006] The pluggable composite integrated wall panel has two panels, and the two pluggable composite integrated wall panels are horizontally slidably inserted into two limiting grooves respectively.
[0007] Connecting steel plates are fixed between the tops of two pluggable composite integrated wall panels;
[0008] The composite integrated sealing baffle is used to seal between one wide edge of the plug-in composite floor panel and two plug-in composite integrated wall panels.
[0009] The entrance protection door has one end vertically inserted into the side of one of the pluggable composite wall panels and can rotate horizontally. The other end of the entrance protection door is movably inserted into another pluggable composite wall panel. An observation port is provided in the middle of the entrance protection door.
[0010] As a further supplement to this solution, an L-shaped skirting board is also included, which is fixed between the plug-in composite wall panel and the plug-in composite floor panel.
[0011] As a further supplement to this solution, the plug-in composite integrated wall panel has a built-in light steel keel one, and the entrance protection door has a built-in light steel keel two.
[0012] The pluggable composite wall panel and composite sealing baffle consist of a steel plate layer, a fireproof rock wool filling layer and a steel plate layer from the inside out. The steel plate layers on the inner and outer sides that are far apart from each other are coated with a solid color paint layer and a camouflage pattern paint layer, respectively.
[0013] As a further supplement to this solution, a pluggable folding bed board is also included. The pluggable folding bed board is horizontally inserted into the inner side of the pluggable composite wall panel and can rotate vertically. The upper end of the pluggable composite floor panel is vertically installed with bed board legs to support the bottom end of the pluggable folding bed board away from the pluggable composite wall panel.
[0014] As a further supplement to this solution, steel sleeves are installed at the bottom of the pluggable folding bed board and the top of the pluggable composite floor panel, and the two ends of the bed board legs are respectively plugged into the steel sleeves on the pluggable folding bed board and the pluggable composite floor panel.
[0015] As a further supplement to this solution, there are two plug-in folding bed boards, and the two plug-in folding bed boards are vertically aligned. The two plug-in folding bed boards are also fixed to each other by steel sleeves and bed board legs.
[0016] As a further supplement to this solution, there are two pluggable folding bed boards, which are staggered vertically. The two pluggable folding bed boards are horizontally plugged into two pluggable composite integrated wall panels and can rotate vertically. The ends of the two pluggable folding bed boards that are close to each other are also fixed by steel sleeves plugged into the bed board legs.
[0017] In summary, the technical effects and advantages of this utility model are as follows:
[0018] 1. In this utility model, the modular structure of the sliding folding cat-ear hole can be assembled and disassembled in a short time, which greatly improves the deployment efficiency in military operations, meets the defense needs in emergency situations, and adopts high-strength composite materials and connection structures to ensure that the cat-ear hole has good structural stability and protective performance, which can effectively protect combat personnel from external attacks. The detachable modular structure is easy to transport and transfer, and can be reused in different locations according to changes in military strategy, which improves resource utilization and reduces costs. At the same time, the camouflage coating on the outer surface allows the modular cat-ear hole to better blend into the surrounding environment, improves concealment, and reduces the probability of being discovered by the enemy.
[0019] 2. In this utility model, the internal space of the cat-ear hole can be flexibly changed by combining the pluggable folding bed board and the pluggable composite wall panel. The two layers of pluggable folding bed boards are staggered, which can make full use of the internal space and also provide lateral reinforcement to the pluggable composite wall panels on both sides, thereby enhancing the overall stability of the sliding groove pluggable folding cat-ear hole. Attached Figure Description
[0020] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0021] Figure 1 This is a schematic diagram of the overall three-dimensional structure in Embodiment 1;
[0022] Figure 2 This is a schematic diagram of the split structure in Embodiment 1;
[0023] Figure 3 This is a schematic diagram of the structure of the light steel keel 2 in Embodiment 1;
[0024] Figure 4 This is a schematic diagram of the single-layer pluggable folding bed board in Embodiment 1.
[0025] Figure 5 This is a schematic diagram of the structure of the double-layer pluggable folding bed board in Embodiment 2;
[0026] Figure 6 This is a schematic diagram of the structure of the double-layer pluggable folding bed board in Embodiment 3.
[0027] In the diagram: 1. Insertable composite floor panel; 2. Insertable composite wall panel; 21. Light steel keel one; 3. Connecting steel sheet; 4. Composite sealing baffle; 5. Entrance protection door; 51. Light steel keel two; 501. Observation port; 6. L-shaped skirting board; 7. Insertable folding bed board; 8. Bed board legs; 9. Steel sleeve. Detailed Implementation
[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0029] Example 1: Reference Figure 1-4 The slide-type folding cat ear hole shown includes a plug-in composite floor panel 1, a plug-in composite wall panel 2, a connecting steel plate 3, a composite sealing baffle 4, and an entrance protection door 5.
[0030] The plug-in composite floor panel 1 has a panel thickness of 100mm and is fully wrapped with a 0.8mm thick textured anti-slip steel plate. The plug-in composite floor panel 1 adopts the NFB floor system combination process: the floor panel is fully wrapped with a textured steel plate (304 textured steel 0.8mm thick) + 5MM medium crystal board - Class A fireproof + plant fiber mechanical board + foam adhesive - waterproof and heat insulation + 5MM medium crystal board - Class A fireproof. The sound insulation can reach 52 decibels, the load-bearing capacity is 10 tons per square meter, it is lightweight, non-deformable, Class A fireproof, waterproof and heat insulation.
[0031] Among them, the upper end of the plug-in composite floor panel 1 is provided with parallel limit grooves on both sides of the long side. There are two plug-in composite integrated wall panels 2, and the two plug-in composite integrated wall panels 2 are respectively horizontally slidably inserted into the two limit grooves. The connecting steel plate 3 is fixed between the top of the two plug-in composite integrated wall panels 2. The composite integrated sealing baffle 4 is sealed between one side of the plug-in composite floor panel 1 and the two plug-in composite integrated wall panels 2, and is fixed to the plug-in composite floor panel 1 by conventional screws and other fixing structures.
[0032] One end of the entrance protection door 5 is vertically inserted into the side end of one of the pluggable composite wall panels 2 and can rotate horizontally. The other end of the entrance protection door 5 is movably inserted into another pluggable composite wall panel 2. An observation port 501 is provided in the middle of the entrance protection door 5 for internal personnel to ventilate and observe the external situation.
[0033] In addition, the sliding folding cat ear hole also includes an L-shaped skirting board 6, which is fixed between the plug-in composite wall panel 2 and the plug-in composite floor panel 1. This can better protect the plug-in composite wall panel 2, while also facilitating cleaning and preventing deformation of the plug-in composite floor panel 1.
[0034] To ensure the overall strength of the foldable cat-ear hole, the plug-in composite wall panel 2 has a built-in light steel keel 1 21, and the entrance protection door 5 has a built-in light steel keel 2 51. All of the above light steel keels are made of hot-dip galvanized square steel pipes arranged in an integrated crisscross pattern.
[0035] The pluggable composite wall panel 2 and the composite sealing baffle 4 adopt a structure consisting of a steel plate layer + fireproof rock wool filling layer + steel plate layer. The entrance protection door 5 adopts a structure consisting of a steel plate layer + sand and gravel filling layer + steel plate layer. The steel plate layers on the inner and outer sides that are far apart from each other are respectively coated with a solid color paint layer and a camouflage pattern paint layer.
[0036] The sliding groove, i.e., the folding cat ear hole, also includes a pluggable folding bed board 7. The pluggable folding bed board 7 is horizontally inserted into the inner side of the pluggable composite wall panel 2 and can rotate vertically. The upper end of the pluggable composite floor panel 1 is vertically installed with bed board support legs 8 for supporting the bottom end of the pluggable folding bed board 7 away from the pluggable composite wall panel 2.
[0037] Furthermore, steel sleeves 9 are installed at the bottom of the pluggable folding bed board 7 and the top of the pluggable composite floor panel 1. The two ends of the bed board legs 8 are respectively plugged into the steel sleeves 9 on the pluggable folding bed board 7 and the pluggable composite floor panel 1. The pluggable folding bed board 7, together with the bed board legs 8 and the steel sleeves 9, can play a certain role in lateral reinforcement of the pluggable composite integrated wall panel 2, making the overall stability of the sliding groove pluggable folding cat ear hole better.
[0038] Example 2: Unlike Example 1, as follows Figure 5 As shown, there are two plug-in folding bed boards 7, and the two plug-in folding bed boards 7 are vertically aligned. The two plug-in folding bed boards 7 are also fixed to the bed board legs 8 by steel sleeves 9. The double-layer plug-in folding bed board 7 design can make full use of the internal space.
[0039] Example 3: Unlike Examples 1 and 2, as follows... Figure 6 As shown, there are two pluggable folding bed boards 7, which are staggered vertically. The two pluggable folding bed boards 7 are horizontally plugged into two pluggable composite integrated wall panels 2, and can rotate vertically. The ends of the two pluggable folding bed boards 7 that are close to each other are also fixed to the bed board legs 8 by steel sleeves 9. The two layers of pluggable folding bed boards 7 are staggered vertically, which can make full use of the internal space and also provide lateral reinforcement to the pluggable composite integrated wall panels 2 on both sides.
[0040] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A slide-in, foldable cat ear hole, characterized in that, Include: Plug-in composite floor panel (1), the upper end of the plug-in composite floor panel (1) is parallelly arranged on both sides of the long side of the limit sliding groove; Plug-in composite integrated wallboard (2), the plug-in composite integrated wallboard (2) is provided with two, and the two plug-in composite integrated wallboard (2) is respectively horizontally slidably inserted into the two limit sliding grooves; Connecting steel sheet (3), the connecting steel sheet (3) is fixed between the top of the two plug-in composite integrated wallboard (2); Composite integrated blocking baffle (4), the composite integrated blocking baffle (4) is blocked between the one side wide edge of the plug-in composite floor panel (1) and the two plug-in composite integrated wallboard (2); Entrance guard door (5), one end of the entrance guard door (5) is vertically inserted into the side end of one of the plug-in composite integrated wallboard (2) and can be horizontally rotated, the other end of the entrance guard door (5) is movably inserted between the other plug-in composite integrated wallboard (2), and the middle part of the entrance guard door (5) is provided with a viewing hole (501).
2. The plug-and-fold cat ear tunnel of claim 1, wherein: It also includes L-shaped skirting line (6), which is fixed between the plug-in composite integrated wallboard (2) and the plug-in composite floor panel (1).
3. The plug-and-fold cat ear tunnel of claim 1, wherein: The plug-in composite integrated wallboard (2) is provided with light steel keel one (21), and the entrance guard door (5) is provided with light steel keel two (51); The plug-in composite integrated wallboard (2) and the composite integrated blocking baffle (4) sequentially include a steel plate layer, a fireproof rock wool filling layer and a steel plate layer from inside to outside, and the steel plate layers on the inner and outer sides are respectively coated with a pure color paint layer and a camouflage pattern paint layer on the side away from each other.
4. The plug-and-fold cat ear tunnel of claim 3, wherein: It also includes plug-in folding bed board (7), which is horizontally inserted into the inner side of the plug-in composite integrated wallboard (2) and can be vertically rotated, and the upper end of the plug-in composite floor panel (1) is vertically installed with a bed board support leg (8) for supporting the bottom end of the side away from the plug-in composite integrated wallboard (2) of the plug-in folding bed board (7).
5. The plug-and-fold cat ear tunnel of claim 4, wherein: The bottom end of the plug-in folding bed board (7) and the upper end of the plug-in composite floor panel (1) are provided with steel sleeves (9), and the two ends of the bed board support leg (8) are respectively inserted into the steel sleeves (9) on the plug-in folding bed board (7) and the plug-in composite floor panel (1).
6. The plug-and-fold cat ear tunnel of claim 5, wherein: The plug-in folding bed board (7) is provided with two, and the two plug-in folding bed boards (7) are vertically arranged, and the two plug-in folding bed boards (7) are also inserted and fixed by steel sleeves (9) and bed board support legs (8) between them.
7. The plug-and-fold cat ear tunnel of claim 5, wherein: The plug-in folding bed board (7) is provided with two, and the two plug-in folding bed boards (7) are vertically arranged, and the two plug-in folding bed boards (7) are also inserted and fixed by steel sleeves (9) and bed board support legs (8) between them. The plug-in folding bed board (7) is provided with two, and the two plug-in folding bed boards (7) are vertically arranged, and the two plug-in folding bed boards (7) are also inserted and fixed by steel sleeves (9) and bed board support legs (8) between them.