Armored protection command control square cabin

Abstract

The utility model relates to the technical field of military equipment, and discloses an armored protection command control square cabin which comprises a square cabin body, positioning seats are fixedly connected to the inner edge of the square cabin body at equal intervals, and driving motors are fixedly installed at the inner top ends of the positioning seats. The square cabin body is good in fixing effect and multiple in applicable scenes, the driving motor drives the drill rod to be inserted into the ground, the positioning and pressure relief assembly is combined, the square cabin body can be rapidly and stably fixed, compared with traditional placement, the square cabin body is more resistant to impact of external force, personnel and equipment safety is guaranteed, and compared with a foundation bolt fixing mode, complex punching is not needed; the device is suitable for temporary deployment and complex outdoor terrains, improves operation efficiency, reduces construction difficulty, is convenient to disassemble and assemble, is reasonable in structure, is high in safety performance, guarantees sealing, prevents impurities from entering and prolongs the service life through the elastic buffering assistance of a spring and the structures of a limiting disc and the like, cooperates with a pressure relief and positioning assembly to reinforce fixation, and can reset in order during disassembly. And safety and reusability are ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to military equipment technical field more particularly to a kind of armored protection command square cabin. BACKGROUND

[0002] As a kind of special equipment for military command and control, armored protection command square cabin usually operates in outdoor environment, its box shell selects high-strength steel material, special alloy or composite material to create, commonly known as carbon fiber reinforced aluminum alloy, fiber composite ceramic armor and other materials, these solid materials endow the square cabin with the ability to resist bullets, shell fragments and part of explosion impact, to build reliable physical protection barrier for personnel and equipment in cabin.

[0003] When armored protection command square cabin is hoisted to specified position, the traditional fixing mode mainly has the two kinds of direct placement on ground and fixed by anchor bolt, if direct placement on ground, square cabin only relies on its own weight to maintain stable, once encounters explosion shock wave, strong wind and other external force impact, square cabin is prone to displacement, shake even be overturned, this not only cannot guarantee the safety of internal personnel and equipment, also seriously interferes with the normal progress of command and control task, and using anchor bolt fixed mode, although it can prevent square cabin horizontal movement to some extent, anchor bolt fixed needs to be drilled in ground in advance and other basic construction, in temporary deployment scene or complex terrain environment, construction difficulty is big and time-consuming, difficult to quickly complete fixing operation, disassembly is time-consuming and laborious. UTILITY MODEL CONTENT

[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides an armored protection command square cabin to solve the problems in the above background art.

[0005] The utility model provides the following technical scheme: an armored protection command square cabin, comprising a square cabin body, a positioning seat is fixedly connected at the inner edge of the square cabin body, a drive motor is fixedly installed at the inner top of the positioning seat, a drive rod is fixedly connected to the output end of the drive motor, a sliding groove is formed in the inner part of the positioning seat, a reset assembly is installed in the inner part of the sliding groove, a limiting disc is rotatably connected to the tail end of the reset assembly, a drill rod is fixedly connected to the bottom of the limiting disc, a positioning assembly and a pressure relief assembly are installed in the inner part of the drill rod, a communication pipe is installed at the connecting part of the positioning assembly and the pressure relief assembly, a limiting plate is fixedly connected to the tail end of the drive rod, and the outer surface of the limiting plate is sealingly and slidably connected to the inner center of the drill rod.

[0006] Further, the reset assembly comprises a reset spring one fixedly connected to the inner top end of the sliding groove, the end of the reset spring one abuts against an upper ring plate, the bottom of the upper ring plate is fixedly connected with a connecting ring, the bottom of the connecting ring is fixedly connected with a rotating ring, the outer surface of the rotating ring is rotatably connected to the inside of the limiting disc, the bottom of the connecting ring extends to the inside of the limiting disc and is rotatably connected to the inside of the limiting disc.

[0007] Further, the inside center of the limiting disc is fixedly connected with a rubber sealing sleeve, the outer surface of the drive rod is sealingly and slidingly connected to the inner wall of the rubber sealing sleeve, the bottom of the positioning seat is provided with an insertion slot, the inside of the sliding groove and the insertion slot are communicated, and the caliber of the insertion slot is smaller than the diameter of the limiting disc.

[0008] Further, the inside center of the limiting disc is provided with a sealing cavity, the outer surface of the limiting plate is sealingly and slidingly connected to the inside of the sealing cavity, and the sealing cavity and the limiting plate are both hexagonal.

[0009] Further, the pressure relief assembly comprises a limiting cavity formed in the drill rod, a rubber plug is sealingly and slidingly connected to the inside of the limiting cavity, a connecting rod is fixedly connected to the top of the rubber plug, a reset spring two is movably sleeved with the outer surface of the connecting rod in the inside of the limiting cavity, a communication groove is formed in the inside of the drill rod, the inside of the sealing cavity is communicated with the inside of the limiting cavity through the communication groove, and under normal circumstances, the rubber plug is made to slide downward and block one end of the communication groove by the elasticity of the reset spring two, and the end of the connecting rod away from the rubber plug extends to the inside of the sealing cavity.

[0010] The positioning assembly comprises a fixed cylinder fixedly connected at equal intervals in the inside of the drill rod, a limiting slot is formed in the inside of the fixed cylinder, a sealing block is sealingly and slidingly connected to the inside of the limiting slot, an insertion rod is fixedly connected to the surface center of the sealing block, a pressure spring is movably sleeved with the outer surface of the insertion rod, and the inside of the limiting slot is communicated with the bottom end of the limiting cavity through a communication pipe.

[0011] Further, the end of the insertion rod away from the sealing block is conical, the conical end face of the insertion rod faces the opening of the limiting slot, and under normal circumstances, the sealing block is made to slide in the direction close to the communication pipe by the elasticity of the pressure spring.

[0012] Further, the distance from the communication groove to the top end of the inside of the sealing cavity is greater than the thickness of the limiting plate, when the limiting plate slides to the top end of the inside of the sealing cavity, the inside of the sealing cavity is communicated with the inside of the communication groove and the communication pipe.

[0013] Further, the connecting rod is "n" shaped, the outer surface of the connecting rod is longitudinally and slidingly connected to the inside of the drill rod, and the bottom of the positioning seat extends to the lower surface of the shelter main body.

[0014] The utility model discloses technical effects and advantages are:

[0015] 1. The utility model discloses a drive motor drives the rotation of drill rod and inserts underground, and cooperates positioning assembly and pressure relief assembly, can fast, stably fixed square cabin main body, compared with traditional direct placement ground mode, greatly enhanced the stability of square cabin when facing explosion shock wave, strong wind etc. external force impact, effectively guarantee the safety of internal personnel and equipment, ensure command control task is not disturbed, compared with the ground bolt fixing mode, need not in advance carry out complicated ground punching construction, can be applicable to temporary deployment scene and complex topography environment, significantly improved the efficiency of fixed operation, reduced construction difficulty, and convenient and fast dismount.

[0016] 2. The utility model discloses, pressure relief assembly and positioning assembly cooperate with each other, after drill rod inserts underground, through pressure change makes the crosswise insertion of rod, further enhances the fastness degree of fixed, simultaneously, when dismantling square cabin, each component can orderly reset, ensure the safety of equipment and repeatable use. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is the structure schematic drawing of square cabin main body in the utility model;

[0018] Figure 2 It is the side view of square cabin main body in the utility model;

[0019] Figure 3 It is the connection schematic drawing of positioning seat and drive motor in the utility model;

[0020] Figure 4 It is Figure 2 Longitudinal section view of;

[0021] Figure 5 It is the connection schematic drawing of drill rod and positioning assembly in the utility model;

[0022] Figure 6 It is the structure schematic drawing of reset component in the utility model;

[0023] Figure 7 It is Figure 4 The enlarged view of A in;

[0024] Figure 8 It is the section view of positioning assembly in the utility model.

[0025] The figure marks are: 1, shelter main body; 2, positioning seat; 3, drive motor; 4, drive stick; 5, sliding groove; 6, reset assembly; 61, reset spring one; 62, upper ring plate; 63, connecting ring; 64, rotating ring; 7, limiting disc; 8, drill rod; 9, slot; 10, positioning assembly; 101, fixed cylinder; 102, limiting groove; 103, pressure spring; 104, insertion rod; 105, sealing block; 11, pressure relief assembly; 111, connecting rod; 112, limiting cavity; 113, reset spring two; 114, communication groove; 115, rubber plug; 12, communication pipe; 13, sealing cavity; 14, limiting plate; 15, rubber sealing sleeve. DETAILED DESCRIPTION

[0026] The utility model makes further explanation below combining specific embodiment, however, people skilled in the art should understand, the detailed description given here in combination with the drawings is to explain better, the structure of the utility model must exceed these limited embodiments, and for some equivalent alternative or common means, this paper does not make detailed description again, but still belongs to the protection scope of the present application.

[0027] Figures 1-8 It is the best embodiment of the utility model, the following will be combined with the drawings Figures 1-8 The utility model makes further explanation.

[0028] An armored protection command shelter includes a shelter main body 1, a positioning seat 2 is fixedly connected at the inner edge of the shelter main body 1, a drive motor 3 is fixedly installed at the inner top end of the positioning seat 2, a drive stick 4 is fixedly connected to the output end of the drive motor 3, a sliding groove 5 is formed in the positioning seat 2, a reset assembly 6 is installed in the sliding groove 5, a limiting disc 7 is rotatably connected to the end of the reset assembly 6, a drill rod 8 is fixedly connected to the bottom of the limiting disc 7, a positioning assembly 10 and a pressure relief assembly 11 are installed in the drill rod 8, a communication pipe 12 is installed at the connection of the positioning assembly 10 and the pressure relief assembly 11, a limiting plate 14 is fixedly connected to the end of the drive stick 4, and the outer surface of the limiting plate 14 is sealingly and slidably connected to the inner center of the drill rod 8.

[0029] The generator and the storage battery are arranged in the shelter main body 1, the drive motor 3 is powered by the storage battery, the window glass on the shelter main body 1 is bulletproof glass, the shell box body structure of the shelter main body 1 is a high-strength steel plate, can disperse energy when suffering explosion, prevent the invasion of fragments, provide reliable protection for personnel and equipment in the cabin, and have good explosion-proof performance.

[0030] Specifically, the reset assembly 6 includes a reset spring 61 fixedly connected to the inner top end of the sliding groove 5, the end of the reset spring 61 abuts against an upper ring plate 62, the bottom of the upper ring plate 62 is fixedly connected with a connecting ring 63, the bottom of the connecting ring 63 is fixedly connected with a rotating ring 64, the outer surface of the rotating ring 64 is rotatably connected in the inner part of the limiting disc 7, and the bottom of the connecting ring 63 extends into the inner part of the limiting disc 7 and is rotatably connected in the inner part of the limiting disc 7.

[0031] In the embodiment, the reset assembly 6 utilizes the elasticity of the reset spring 61 to play a buffering and auxiliary role in the process of inserting and retracting the drill rod 8. When the driving motor 3 drives the drill rod 8 to be inserted into the ground, the reset spring 61 drives the limiting disc 7 and the drill rod 8 to slide downward through the upper ring plate 62, the connecting ring 63 and the rotating ring 64, so that the drill rod 8 can be more smoothly inserted into the ground. When the drill rod 8 is retracted, the reset spring 61 helps the drill rod 8 to quickly reset, ensuring that the entire operation process is stable and smooth. Meanwhile, the rotating connection of the connecting ring 63, the rotating ring 64 and the limiting disc 7 makes the drill rod 8 more flexible during rotation.

[0032] Specifically, the inner center of the limiting disc 7 is fixedly connected with a rubber sealing sleeve 15, the outer surface of the driving rod 4 is sealingly and slidingly connected to the inner wall of the rubber sealing sleeve 15, the bottom of the positioning seat 2 is provided with a slot 9, the inner parts of the sliding groove 5 and the slot 9 are communicated, and the caliber of the slot 9 is smaller than the diameter of the limiting disc 7.

[0033] In the embodiment, the rubber sealing sleeve 15 ensures the sealing performance between the driving rod 4 and the limiting disc 7, effectively prevents the foreign matters such as dust from entering the inner part of the equipment, avoids causing abrasion or damage to the inner structure of the equipment, ensures the sealing performance of the sealing cavity 13, and provides a storage space for the drill rod 8 through the design of the slot 9. When the drill rod 8 is retracted, it can be stored in the slot 9, and the caliber of the slot 9 is smaller than the diameter of the limiting disc 7, so that the limiting disc 7 can be prevented from excessively sliding downward and play a limiting role.

[0034] Specifically, the inner center of the limiting disc 7 is provided with a sealing cavity 13, and the outer surface of the limiting plate 14 is sealingly and slidingly connected to the inner part of the sealing cavity 13. Both the sealing cavity 13 and the limiting plate 14 are hexagonal.

[0035] In the embodiment, the hexagonal design of the sealing cavity 13 and the limiting plate 14 makes the limiting plate 14 more stable when sliding in the sealing cavity 13 and less likely to deviate. Meanwhile, the rotation of the limiting plate 14 drives the drill rod 8 to rotate, ensuring the stability of the drill rod 8 during movement and further ensuring the reliability of the entire fixing and removal operation.

[0036] Specifically, the pressure relief assembly 11 comprises a limiting cavity 112 formed in the interior of the drill pipe 8, a rubber plug 115 is sealingly and slidably connected in the interior of the limiting cavity 112, a connecting rod 111 is fixedly connected to the top of the rubber plug 115, a second reset spring 113 is movably sleeved on the outer surface of the connecting rod 111 and located in the interior of the limiting cavity 112, a communication groove 114 is formed in the interior of the drill pipe 8, the interior of the sealing cavity 13 is connected with the interior of the limiting cavity 112 through the communication groove 114, and the rubber plug 115 is made to slide downward and block one end of the communication groove 114 under the elasticity of the second reset spring 113, and the end of the connecting rod 111 away from the rubber plug 115 extends into the interior of the sealing cavity 13;

[0037] The positioning assembly 10 comprises a fixed cylinder 101 fixedly connected at equal intervals in the interior of the drill pipe 8, a limiting groove 102 is formed in the interior of the fixed cylinder 101, a sealing block 105 is sealingly and slidably connected in the interior of the limiting groove 102, an insertion rod 104 is fixedly connected to the surface center of the sealing block 105, a pressure spring 103 is movably sleeved on the outer surface of the insertion rod 104, and the interior of the limiting groove 102 is connected with the bottom end of the interior of the limiting cavity 112 through the communication pipe 12.

[0038] In order to facilitate the installation of the positioning assembly 10 and the pressure relief assembly 11 in the interior of the drill pipe 8, the drill pipe 8 is of a split structure, and the split parts are sealingly and fixedly connected together by welding.

[0039] In the embodiment, the pressure relief assembly 11 and the positioning assembly 10 cooperate with each other to enhance the fixing effect of the shelter, when the drill pipe 8 is inserted into the ground, the limiting plate 14 slides upward in the sealing cavity 13 to increase the pressure in the interior of the sealing cavity 13, after the rubber plug 115 slides upward to open the communication groove 114 by abutting against the connecting rod 111, the high-pressure gas in the sealing cavity 13 enters the communication pipe 12 through the communication groove 114 and the limiting cavity 112, and then enters the limiting groove 102 to push the sealing block 105 to drive the insertion rod 104 to be inserted horizontally into the ground, thereby further enhancing the fixing firmness of the shelter main body 1, and when the shelter is removed, the assemblies can be sequentially reset to ensure the safety and reusability of the equipment.

[0040] Specifically, the end of the insertion rod 104 away from the sealing block 105 is tapered, the tapered end face of the insertion rod 104 faces the opening of the limiting groove 102, and the sealing block 105 is made to slide toward the communication pipe 12 under the elasticity of the pressure spring 103.

[0041] In the embodiment, the tapered design of the insertion rod 104 facilitates the insertion of the insertion rod 104 into the ground and reduces the resistance during insertion, under normal circumstances, the sealing block 105 is made to slide toward the communication pipe 12 under the elasticity of the pressure spring 103, so that the insertion rod 104 is in a retracted state when not subjected to high pressure and cannot be extended at will, and when subjected to high pressure, the insertion rod 104 can be quickly ejected and inserted into the ground to effectively fix the shelter main body 1.

[0042] Specifically, the distance from the communication groove 114 to the inner top end of the sealing cavity 13 is greater than the thickness of the limiting plate 14, when the limiting plate 14 slides to the inner top end of the sealing cavity 13, the inside of the sealing cavity 13 is communicated with the inside of the communication tube 12 through the communication groove 114 and the communication groove 114.

[0043] In this embodiment, such a design ensures that during the process of inserting the drill rod 8 into the ground, when the limiting plate 14 slides to the inner top end of the sealing cavity 13, the strong pressure in the inside of the sealing cavity 13 can accurately enter the limiting cavity 112 through the communication groove 114, and then enter the limiting groove 102 through the communication tube 12, push the cross rod 104 to be inserted into the ground laterally, realize the fixing firmness of the shelter body 1, and ensure the accuracy and reliability of the fixing operation.

[0044] Specifically, the connecting rod 111 is in the shape of "n", the outer surface of the connecting rod 111 is longitudinally and slidingly connected in the inside of the drill rod 8, and the bottom of the positioning seat 2 extends to the lower surface of the shelter body 1.

[0045] In this embodiment, the n-shaped connecting rod 111 is convenient to cooperate with the internal structure of the drill rod 8, in the process of inserting and retracting the drill rod 8, the connecting rod 111 can stably slide longitudinally, ensure that the rubber plug 115 accurately blocks or opens the communication groove 114, and the bottom of the positioning seat 2 extends to the lower surface of the shelter body 1, so that the positioning seat 2 can better support and fix the drill rod 8, and the stability of the whole fixing structure is enhanced.

[0046] The working principle and use process of the utility model are as follows: after the shelter body 1 is placed in the specified position through hoisting equipment, the driving motor 3 is started to drive the driving rod 4 to rotate clockwise, the driving rod 4 drives the drill rod 8 to rotate clockwise through the limiting plate 14, due to the elasticity of the reset spring one 61, the reset spring one 61 drives the limiting disc 7 and the drill rod 8 to slide downwards through the upper ring plate 62, the connecting ring 63 and the rotating ring 64, so that the tip of the drill rod 8 is inserted into the ground, and the drill rod 8 is deepened into the ground by cooperating with the rotation of the drill rod 8, when the drill rod 8 slides downwards, the limiting plate 14 slides upwards in the inside of the sealing cavity 13 relative to the drill rod 8, at this time, the inner top end of the sealing cavity 13 is in a strong pressure state, when the drill rod 8 is located at the inner top end of the sealing cavity 13, the drill rod 8 abuts against the connecting rod 111 and drives the rubber plug 115 to slide upwards through the connecting rod 111, when the rubber plug 115 slides to the upper side of the communication groove 114, the strong pressure in the inside of the sealing cavity 13 enters the inside of the communication tube 12 through the communication groove 114 and the limiting cavity 112, and finally enters the inside of the limiting groove 102, and the sudden strong pressure makes the sealing block 105 drive the cross rod 104 to slide rapidly, so that the cross rod 104 is inserted into the ground laterally, at this time, the rapid fixing of the shelter body 1 is completed.

[0047] When the partner cabin body 1 is not needed to be fixed, the driving motor 3 is started to drive the driving rod 4 to rotate counterclockwise, the driving rod 4 drives the drill rod 8 to rotate reversely through the limiting plate 14, the drill rod 8 drives the limiting disc 7 to slide upward until the top of the upper ring plate 62 abuts against the surface of the reset spring one 61, and the drill rod 8 is completely retracted into the slot 9, when the drill rod 8 slides upward, the pressure in the sealing cavity 13 is reduced, the surface of the limiting plate 14 is also slowly separated from the end surface of the connecting rod 111, the sealing block 105 drives the inserting rod 104 to slide slowly to the direction close to the communicating pipe 12 through the elasticity of the pressure spring 103 until the inserting rod 104 is completely retracted into the limiting slot 102, when the limiting plate 14 is located at the bottom end in the sealing cavity 13, the connecting rod 111 is not subjected to external force, the rubber plug 115 is driven to slide downward through the elasticity of the reset spring two 113 to seal the top end of the communicating pipe 12 and the end surface of the communicating slot 114, the inside of the sealing cavity 13 is also gradually in the normal pressure state, at this time, the partner cabin body 1 can be directly moved by the hoisting equipment, and the partner cabin body 1 is removed.

[0048] The above is only the preferred embodiment of the present application, and does not limit the present application in other forms. Any skilled person in the art can change or modify the above disclosed technical content into equivalent embodiments. However, any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the present application still belong to the protection scope of the present application.

Claims

1. An armored command shelter comprising a shelter body (1), characterized in that: The inside edge of the shelter body (1) is fixedly connected with a positioning seat (2) at equal intervals, the inside top of the positioning seat (2) is fixedly installed with a driving motor (3), the output end of the driving motor (3) is fixedly connected with a driving rod (4), the inside of the positioning seat (2) is provided with a sliding groove (5), the inside of the sliding groove (5) is installed with a reset assembly (6), the tail end of the reset assembly (6) is rotatably connected with a limiting disc (7), the bottom of the limiting disc (7) is fixedly connected with a drill rod (8), the inside of the drill rod (8) is installed with a positioning assembly (10) and a pressure relief assembly (11), the connecting position of the positioning assembly (10) and the pressure relief assembly (11) is installed with a communication pipe (12), the tail end of the driving rod (4) is fixedly connected with a limiting plate (14), the outer surface of the limiting plate (14) is sealingly and slidably connected in the inside center of the drill rod (8).

2. The armored command shelter of claim 1, wherein: The reset assembly (6) comprises a reset spring I (61) fixedly connected to the inside top of the sliding groove (5), the tail end of the reset spring I (61) abuts against an upper ring plate (62), the bottom of the upper ring plate (62) is fixedly connected with a connecting ring (63), the bottom of the connecting ring (63) is fixedly connected with a rotating ring (64), the outer surface of the rotating ring (64) is rotatably connected in the inside of the limiting disc (7), the bottom of the connecting ring (63) extends into the inside of the limiting disc (7) and is rotatably connected in the inside of the limiting disc (7).

3. The hardened command shelter of claim 1, wherein: The inside center of the limiting disc (7) is fixedly connected with a rubber sealing sleeve (15), the outer surface of the driving rod (4) is sealingly and slidably connected to the inner wall of the rubber sealing sleeve (15), the bottom of the positioning seat (2) is provided with a slot (9), the inside of the sliding groove (5) and the slot (9) are communicated, and the caliber of the slot (9) is smaller than the diameter of the limiting disc (7).

4. The hardened command shelter of claim 1, wherein: The inside center of the limiting disc (7) is provided with a sealing cavity (13), the outer surface of the limiting plate (14) is sealingly and slidably connected in the inside of the sealing cavity (13), and the sealing cavity (13) and the limiting plate (14) are both hexagonal.

5. The hardened command shelter of claim 4, wherein: The pressure relief assembly (11) comprises a limiting cavity (112) formed in the inside of the drill rod (8), the inside of the limiting cavity (112) is sealingly and slidably connected with a rubber plug (115), the top of the rubber plug (115) is fixedly connected with a connecting rod (111), the outer surface of the connecting rod (111) is movably sleeved with a reset spring II (113) in the inside of the limiting cavity (112), the inside of the drill rod (8) is provided with a communication groove (114), the inside of the sealing cavity (13) is communicated with the inside of the limiting cavity (112) through the communication groove (114), under normal circumstances, the rubber plug (115) is made to slide downward and block one end of the communication groove (114) by the elasticity of the reset spring II (113), and the end of the connecting rod (111) away from the rubber plug (115) extends into the inside of the sealing cavity (13). The positioning assembly (10) comprises a fixed cylinder (101) fixedly connected inside the drill rod (8), the inside of the fixed cylinder (101) is provided with a limiting groove (102), the inside of the limiting groove (102) is sealingly connected with a sealing block (105), the surface center of the sealing block (105) is fixedly connected with a plug rod (104), the outer surface of the plug rod (104) is movably sleeved with a pressure spring (103), and the inside of the limiting groove (102) is communicated with the inside bottom end of a limiting cavity (112) through a communicating pipe (12).

6. The hardened command shelter of claim 5, wherein: The end of the plug rod (104) away from the sealing block (105) is conical, the conical end face of the plug rod (104) faces the opening of the limiting groove (102), and the sealing block (105) slides to the direction close to the communicating pipe (12) under the elasticity of the pressure spring (103).

7. The hardened command shelter of claim 5, wherein: The distance from the communicating groove (114) to the inside top end of the sealing cavity (13) is greater than the thickness of the limiting plate (14), when the limiting plate (14) slides to the inside top end of the sealing cavity (13), the inside of the sealing cavity (13) is communicated with the inside of the communicating pipe (12) through the communicating groove (114) and the communicating groove (114).

8. The hardened command shelter of claim 5, wherein: The connecting rod (111) is "n" shaped, the outer surface of the connecting rod (111) is longitudinally movably connected in the inside of the drill rod (8), and the bottom of the positioning seat (2) extends to the lower surface of the shelter main body (1).

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