Folding anti-explosion mortise and tenon connecting piece for military shelter
By using tenon and mortise joints and mortise grooves, as well as limiting groove design, the problem of inconvenient assembly and disassembly of explosion-proof folding military containers in existing technologies has been solved, enabling tool-free rapid assembly and disassembly, and improving explosion-proof performance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG LIANGSHAN TONGYA AUTOMOBILE MFG CO LTD
- Filing Date
- 2025-05-21
- Publication Date
- 2026-04-24
AI Technical Summary
The assembly and disassembly of existing blast-resistant folding military shelters require the use of third-party tools such as screwdrivers and wrenches, which makes operation inconvenient.
The design employs a tenon and mortise connection structure, combined with a limiting groove and limiting block design, to achieve rapid assembly and disassembly without the need for third-party tools. Furthermore, a polyurea-based explosion-proof coating is applied to the panel surface to enhance its explosion resistance.
It enables rapid and easy assembly and disassembly of military-grade modular shelters, and enhances their blast resistance.
Smart Images

Figure CN224161213U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mortise and tenon connectors, specifically a foldable explosion-proof mortise and tenon connector for military shelters. Background Technology
[0002] The military container folding blast-resistant tenon and mortise connector is a connector used in blast-resistant folding military containers. It is a model of combining traditional craftsmanship with modern technology. It not only inherits the mechanical wisdom of the tenon and mortise structure, but also meets the modern needs of blast resistance and rapid deployment through material innovation and functional expansion.
[0003] In the existing technology, when assembling blast-resistant folding military shelters, screws and screw holes are usually used as connectors. This connection method is very strong. At the same time, polyurea-based blast-resistant coatings are sprayed on the bottom plate, side plate and top plate of the blast-resistant folding military shelter to increase the shelter's blast resistance.
[0004] However, the existing technology uses screws and screw holes to assemble blast-resistant folding military containers, which requires the use of third-party tools such as screwdrivers and wrenches during assembly and disassembly, making the assembly and disassembly of military containers very inconvenient. Summary of the Invention
[0005] The purpose of this utility model is to provide a foldable explosion-proof tenon and mortise connector for military shelters to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, this utility model provides the following technical solution: a foldable blast-resistant tenon and mortise connector for military shelters, comprising: a tenon and a mortise groove, wherein the tenon is fixed to the surface of a first side plate, the mortise groove is opened on the surface of a top plate, the tenon is movably inserted into the mortise groove, the first side plate is rotatably connected to the surface of a first side plate mounting seat, the first side plate mounting seat is fixed to the surface of a bottom plate, a second side plate mounting seat is fixed to the surface of the first side plate mounting seat, and a second side plate is rotatably connected to the surface of the second side plate mounting seat.
[0007] Preferably, a first side plate limiting plate is fixed on the surface of the second side plate.
[0008] Preferably, the top end of the first side plate and the bottom end of the top plate are both inclined at a 45-degree angle, and the top end of the first side plate matches the bottom end of the top plate.
[0009] Preferably, a first limiting groove is formed on the surface of the first side plate mounting base, a second limiting groove is formed on the surface of the second side plate, and a plug-in groove is formed on the surface of the top plate.
[0010] Preferably, a second side limiting plate is fixed on the surface of the top plate, and a limiting block mounting hole is formed on the surface of the second side limiting plate. One end of the limiting block is movably inserted into the limiting block mounting hole, and the other end of the limiting block is movably inserted into the first limiting groove and the second limiting groove.
[0011] Preferably, a sleeve is fixed on the surface of the second side limiting plate, a spring plate is slidably connected in the sleeve, a pull rod is movably inserted into the end of the sleeve away from the second side limiting plate, one end of the pull rod extends into the sleeve and is fixed to one end of the spring plate, the other end of the spring plate is fixed to the surface of the limiting block, and a pull plate is fixed to the other end of the pull rod.
[0012] Preferably, a spring is sleeved on the rod body of the pull rod, with one end of the spring abutting against the surface of the spring plate and the other end of the spring abutting against the inner wall of the sleeve.
[0013] Compared with the prior art, the beneficial effects of this utility model are:
[0014] The foldable explosion-proof tenon and mortise connector for military shelters proposed in this utility model, through the use of tenon and mortise to form a mortise and tenon joint and the cooperation of other components, allows the assembly and disassembly of the entire explosion-proof foldable military shelter to be done without the need for third-party tools, which is very simple and quick; at the same time, the bottom plate, the first side plate, the second side plate and the top plate are all coated with polyurea explosion-proof coating to increase the shelter's explosion resistance. Attached Figure Description
[0015] Figure 1 This is a schematic diagram of the structure of this utility model;
[0016] Figure 2 This is a schematic cross-sectional view of the present invention.
[0017] Figure 3 for Figure 2 Enlarged schematic diagram of the structure at point A in the middle;
[0018] Figure 4 This is a schematic diagram showing the assembly relationship of each component in the folded state;
[0019] Figure 5 This is a schematic diagram showing the assembly relationship of each component in its unfolded state;
[0020] Figure 6 This is a schematic diagram of the cross-sectional structure of the tenon and groove.
[0021] Figure 7 This is a schematic diagram of the cross-sectional structure of the sleeve;
[0022] Figure 8 for Figure 7 Enlarged schematic diagram of the structure at point B.
[0023] In the diagram: 1. Base plate; 2. First side plate mounting seat; 3. First side plate; 4. Second side plate mounting seat; 5. First side plate limiting plate; 6. First limiting groove; 7. Second limiting groove; 8. Top plate; 9. Tenon; 10. Mortise; 11. Second side limiting plate; 12. Limiting block mounting hole; 13. Limiting block; 14. Sleeve; 15. Spring plate; 16. Pull rod; 17. Spring; 18. Pull plate; 19. Insertion groove; 20. Hatch door; 21. Detailed Implementation
[0024] To make the objectives, technical solutions, and advantages of this utility model clear and complete, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of this utility model, and are merely used to explain the embodiments of this utility model. They are not intended to limit the embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0025] Example 1: Please refer to Figures 1 to 8 This utility model provides a technical solution: a foldable explosion-proof tenon and mortise connector for military shelters, comprising: tenon 10 and mortise groove 11. The tenon 10 is fixed on the surface of the first side plate 3, and the mortise groove 11 is opened on the surface of the top plate 9. The tenon 10 is movably inserted into the mortise groove 11. The first side plate 3 is rotatably connected to the surface of the first side plate mounting seat 2. The first side plate mounting seat 2 is fixed on the surface of the bottom plate 1. A second side plate mounting seat 4 is fixed on the surface of the first side plate mounting seat 2. A second side plate 5 is rotatably connected to the surface of the second side plate mounting seat 4. A first side plate limiting plate 6 is fixed on the surface of the second side plate 5. The top end of the first side plate 3 and the bottom end of the top plate 9 are both inclined at a 45-degree angle, and the top end of the first side plate 3 mates with the bottom end of the top plate 9. An insertion groove 20 is opened on the surface of the top plate 9, and a second side limiting plate 12 is fixed on the surface of the top plate 9.
[0026] In actual use, when assembling this modular container, first remove the top plate 9 and set it aside. Then, simultaneously flip both sets of second side plates 5 upwards by 90 degrees, and then simultaneously flip both sets of first side plates 3 upwards by 90 degrees. After that, fasten the top plate 9 onto the top of the two sets of first side plates 3, so that the tenon 10 is inserted into the mortise 11. At the same time, the inclined surface of the top plate 9 matches the inclined surface of the first side plate 3. In addition, the top of the second side plate 5 is inserted into the insertion groove 20. The inner wall of the insertion groove 20 and the second side limiting plate 12 respectively abut against the two symmetrical end faces of the second side plate 5 to limit the second side plate 5. The inclined surface of the top plate 9 and the first side plate limiting plate 6 also limit the first side plate 3. This completes the assembly of the military modular container. The first side panel 3 has a hatch 21 on its surface for personnel to enter and exit. To disassemble, simply lift the top panel 9 upwards, fold the bottom of the first side panel 3 back to the top of the bottom panel 1, fold the second side panel 5 downwards back to the top of the first side panel 3, and then press the top panel 9 on top of the second side panel 5 to complete the disassembly. Through the use of tenons formed by tenons 10 and mortises 11 and the cooperation of other components, the assembly and disassembly of the entire explosion-proof folding military container does not require third-party tools and is very simple and quick. At the same time, the bottom panel 1, the first side panel 3, the second side panel 5 and the top panel 9 all use the same polyurea explosion-proof coating as existing technology to increase the explosion resistance of the container.
[0027] Example 2: Based on Example 1, in order to prevent the top plate 9 from being blown away in an explosion and thus further increase the blast resistance of the shelter, a first limiting groove 7 is provided on the surface of the first side plate mounting seat 2, a second limiting groove 8 is provided on the surface of the second side plate 5, an insertion groove 20 is provided on the surface of the top plate 9, a second side limiting plate 12 is fixed on the surface of the top plate 9, and a limiting block mounting hole 13 is provided on the surface of the second side limiting plate 12. One end of the limiting block 14 is movably inserted into the limiting block mounting hole 13, and the other end of the limiting block 14 is movably inserted into the first limiting groove 7. In the second limiting groove 8, a sleeve 15 is fixed on the surface of the second side limiting plate 12. A spring plate 16 is slidably connected in the sleeve 15. A pull rod 17 is movably inserted into one end of the sleeve 15 away from the second side limiting plate 12. One end of the pull rod 17 extends into the sleeve 15 and is fixed to one end of the spring plate 16. The other end of the spring plate 16 is fixed to the surface of the limiting block 14. A pull plate 19 is fixed to the other end of the pull rod 17. A spring 18 is sleeved on the rod body of the pull rod 17. One end of the spring 18 abuts against the surface of the spring plate 16, and the other end of the spring 18 abuts against the inner wall of the sleeve 15.
[0028] After the first side plate 3 and the second side plate 5 are flipped up, when the top plate 9 is pressed down onto the top of the first side plate 3, as the second side plate 5 is inserted into the insertion slot 20, the second side plate 5 will abut against the inclined surface of the limiting block 14, pushing the limiting block 14 completely into the limiting block mounting hole 13 and the sleeve 15. At this time, the spring 18 is compressed by the inner wall of the sleeve 15 and the spring plate 16. When the limiting block mounting hole 13 is aligned with the second limiting slot 8, the spring 18 pushes the spring plate 16, and the spring plate 16 pushes one end of the limiting block 14 into the top plate 9, while the other end of the limiting block 14 remains in the limiting block mounting hole 13. This limits the space between the second side plate 5 and the second side limiting plate 12, and also limits the top plate 9, preventing the top plate 9 from being blown away in an explosion, thereby further increasing the explosion resistance of the container.
[0029] Example 3: Based on Example 2, in order to facilitate the transport of the container after it has been disassembled and folded, a first limiting groove 7 is provided on the surface of the first side plate mounting seat 2, a second limiting groove 8 is provided on the surface of the second side plate 5, an insertion groove 20 is provided on the surface of the top plate 9, a second side limiting plate 12 is fixed on the surface of the top plate 9, a limiting block mounting hole 13 is provided on the surface of the second side limiting plate 12, one end of a limiting block 14 is movably inserted into the limiting block mounting hole 13, and the other end of the limiting block 14 is movably inserted into the first limiting groove 7 and the second limiting groove 8.
[0030] After the first side panel 3 and the second side panel 5 are both folded down, the top panel 9 is pressed on top of the second side panel 5. When it is pressed down, the pull plate 19 is pulled outward, and the pull plate 19 pulls the pull rod 17 outward. The pull rod 17 pulls the limiting block 14 through the spring plate 16, so that the limiting block 14 is fully retracted into the limiting block mounting hole 13 and the sleeve 15. When the top panel 9 is pressed on the second side panel 5, the limiting block mounting hole 13 is aligned with the first limiting groove 7. At this time, the pull plate 19 is released, and one end of the limiting block 14 is pushed into the first limiting groove 7. The other end of the limiting block 14 stays in the limiting block mounting hole 13. Then, four people hold the four sets of sleeves 15 respectively and lift the top panel 9 upward, so that the entire folded container can be lifted upward, making it easier to transport the container.
[0031] In actual use, when assembling this container, first remove the top plate 9 and set it aside. Then, simultaneously flip the two sets of second side plates 5 upwards by 90 degrees, and then simultaneously flip the two sets of first side plates 3 upwards by 90 degrees. After that, fasten the top plate 9 onto the top of the two sets of first side plates 3, so that the tenon 10 is inserted into the mortise 11. At the same time, the inclined surface of the top plate 9 matches the inclined surface of the first side plate 3. In addition, the top of the second side plate 5 is inserted into the insertion groove 20. The inner wall of the insertion groove 20 and the second side limiting plate 12 respectively abut against the two symmetrical end faces of the second side plate 5 to limit the second side plate 5. The inclined surface of the top plate 9 and the first side plate limiting plate 6 also limit the first side plate 3. This completes the assembly of the military container. On the surface of one set of first side plates 3 The container has a hatch 21 for personnel entry and exit. Disassembly is simple: lift the top plate 9 upwards, fold the first side plate 3 back to the top of the bottom plate 1, fold the second side plate 5 down to the top of the first side plate 3, and then press the top plate 9 onto the second side plate 5. The use of tenons 10 and mortises 11, along with the cooperation of other components, allows for easy and quick assembly and disassembly of the entire explosion-proof folding military container without the need for third-party tools. Furthermore, the bottom plate 1, first side plate 3, second side plate 5, and top plate 9 all use the same polyurea-based explosion-proof coating as existing technologies, increasing the container's explosion resistance. After folding up the first side plate 3 and second side plate 5, the top plate 9 is pressed down onto the first side plate. When the second side plate 5 is inserted into the insertion slot 20, it will abut against the inclined surface of the limiting block 14, pushing the limiting block 14 completely into the limiting block mounting hole 13 and the sleeve 15. At this time, the spring 18 is compressed by the inner wall of the sleeve 15 and the spring plate 16. When the limiting block mounting hole 13 is aligned with the second limiting groove 8, the spring 18 pushes the spring plate 16, and the spring plate 16 pushes one end of the limiting block 14 into the top plate 9, while the other end of the limiting block 14 remains in the limiting block mounting hole 13. This limits the space between the second side plate 5 and the second side limiting plate 12, and also limits the top plate 9, preventing the top plate 9 from being blown away in an explosion, thereby further increasing the explosion resistance of the container. After the second side panels 5 are folded down, the top panel 9 is pressed on top of the second side panels 5. When it is pressed down, the pull plate 19 is pulled outward, and the pull plate 19 pulls the pull rod 17 outward. The pull rod 17 pulls the limiting block 14 through the spring plate 16, so that the limiting block 14 is fully retracted into the limiting block mounting hole 13 and the sleeve 15. When the top panel 9 is pressed on the second side panel 5, the limiting block mounting hole 13 is aligned with the first limiting groove 7. At this time, the pull plate 19 is released, and one end of the limiting block 14 is pushed into the first limiting groove 7. The other end of the limiting block 14 stays in the limiting block mounting hole 13. Then, four people hold the four sets of sleeves 15 respectively and lift the top panel 9 upward, so that the entire folded container can be lifted upward, making it easier to transport the container.
[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A folding, blast-resistant tenon-and-mortise connector for military shelters, comprising: The tenon (10) and mortise (11) are characterized in that: the tenon (10) is fixed on the surface of the first side plate (3), the mortise (11) is opened on the surface of the top plate (9), the tenon (10) is movably inserted into the mortise (11), the first side plate (3) is rotatably connected to the surface of the first side plate mounting seat (2), the first side plate mounting seat (2) is fixed on the surface of the bottom plate (1), the second side plate mounting seat (4) is fixed on the surface of the first side plate mounting seat (2), and the second side plate (5) is rotatably connected to the surface of the second side plate mounting seat (4).
2. The folding blast-resistant tenon and mortise connector for a military container according to claim 1, characterized in that: The first side plate limiting plate (6) is fixed on the surface of the second side plate (5).
3. The folding blast-resistant tenon and mortise connector for a military container according to claim 1, characterized in that: The top of the first side plate (3) and the bottom of the top plate (9) are both inclined at a 45-degree angle, and the top of the first side plate (3) matches the bottom of the top plate (9).
4. The folding blast-resistant tenon and mortise connector for a military container according to claim 1, characterized in that: The first side plate mounting base (2) has a first limiting groove (7) on its surface, the second side plate (5) has a second limiting groove (8) on its surface, and the top plate (9) has a plug-in groove (20) on its surface.
5. A folding, explosion-proof tenon-and-mortise connector for a military container according to claim 4, characterized in that: A second side limiting plate (12) is fixed on the surface of the top plate (9). A limiting block mounting hole (13) is opened on the surface of the second side limiting plate (12). One end of the limiting block (14) is movably inserted into the limiting block mounting hole (13), and the other end of the limiting block (14) is movably inserted into the first limiting groove (7) and the second limiting groove (8).
6. The folding blast-resistant tenon and mortise connector for a military container according to claim 5, characterized in that: A sleeve (15) is fixed on the surface of the second side limiting plate (12). A spring plate (16) is slidably connected in the sleeve (15). A pull rod (17) is movably inserted into one end of the sleeve (15) away from the second side limiting plate (12). One end of the pull rod (17) extends into the sleeve (15) and is fixed on one end of the spring plate (16). The other end of the spring plate (16) is fixed on the surface of the limiting block (14). A pull plate (19) is fixed to the other end of the pull rod (17).
7. A folding, explosion-proof tenon-and-mortise connector for a military container according to claim 6, characterized in that: A spring (18) is sleeved on the rod body of the pull rod (17). One end of the spring (18) abuts against the surface of the spring plate (16), and the other end of the spring (18) abuts against the inner wall of the sleeve (15).