Ventilation device for intelligent civil air defense engineering

Abstract

The utility model discloses a ventilation device for intelligent civil air defense engineering, which relates to the technical field of intelligent civil air defense ventilation and comprises a ventilation pipe, one end of the ventilation pipe is connected with an adapter pipe, one side of the adapter pipe is connected with a plurality of air inlet pipes, air valves are arranged on the air inlet pipes, and the other end of the ventilation pipe is connected with a filter pipe. A filtering mechanism is mounted on the inner side of the filtering pipe, a portable mounting groove is formed in one side of the filtering pipe, a portable mounting frame is mounted on the outer side of the filtering mechanism, two symmetrical fixing plates are fixedly mounted on one side of the filtering pipe, and a limiting mechanism and a locking mechanism are arranged between the portable mounting frame and the fixing plates; and a sealing mechanism is arranged between the filter pipe and the portable mounting frame. By arranging the portable mounting frame, the filtering mechanism can be mounted and dismounted in a portable manner, tools are not needed, the mounting and dismounting method is very simple, the efficiency is very high, and time is greatly saved.

Description

TECHNICAL FIELD

[0001] The utility model relates to wisdom civil air defense ventilation technical field, concretely is a wisdom civil air defense engineering ventilation device. BACKGROUND

[0002] The wisdom civil air defense engineering is the people's air defense engineering that uses information network as the pivot, information equipment as the carrier, and constructs people's air defense protection and rescue with the people informationization.

[0003] The wisdom civil air defense engineering can give people air defense protection, material shelter and medical aid in wartime, can effectively prevent the enemy's sudden attack, and can protect people by dispersing them to the civil air defense engineering. It is the engineering guarantee for adhering to urban combat, long-term support for anti-invasion war until victory.

[0004] Because the wisdom civil air defense engineering is usually built underground, the air circulation is weak, and a large amount of carbon dioxide and water vapor can be accumulated during use, so that the oxygen content in the air is low, which can cause harm to the user's life. Therefore, when building the wisdom civil air defense engineering, a ventilation device needs to be added to ensure sufficient air circulation.

[0005] The existing wisdom civil air defense engineering ventilation device usually needs to be installed with a filtering mechanism when in use, so as to filter the dust and other harmful substances carried by the circulating air. However, the existing wisdom civil air defense engineering ventilation device generally uses fixed bolts or other fixing mechanisms when installing the filtering mechanism, which makes it more troublesome to remove and reinstall the filtering mechanism for cleaning, and it is time-consuming and inefficient. When the staff lacks tools, they may not be able to clean the work, which affects the cleaning work of the staff. UTILITY MODEL CONTENT

[0006] Therefore, the utility model aims to provide a wisdom civil air defense engineering ventilation device to solve the technical problems mentioned in the background.

[0007] In order to achieve the above object, the utility model provides the following technical scheme: a ventilation device for wisdom civil air defense engineering, including ventilation pipe, one end of ventilation pipe is connected with adapter pipe, one side of adapter pipe is connected with a plurality of air inlet pipes, be equipped with air valve on air inlet pipe, the other end of ventilation pipe is connected with filter tube, the inside of filter tube is installed with filter mechanism, the side of filter tube is equipped with portable installation groove, the outside of filter mechanism is installed with portable mounting bracket, the side of filter tube is fixedly installed with two fixed plates that are symmetrical, be equipped with limiting mechanism and locking mechanism between portable mounting bracket and fixed plate, be equipped with sealing mechanism between filter tube and portable mounting bracket, the locking mechanism includes slide rod slide hole, one side of portable mounting bracket is equipped with slide rod slide hole, the top and bottom of slide rod slide hole are equipped with two slide block slide holes, two limit slide holes are equipped on the both sides of slide block slide hole, the inside of slide rod slide hole is equipped with the unlocking slide rod and slides, the top and bottom of unlocking slide rod are equipped with unlocking recess, one side of unlocking recess is inclinedly arranged, the bottom of slide rod slide hole is connected with telescopic spring, one end of telescopic spring is connected with unlocking slide rod, the inside of slide block slide hole is equipped with sliding lock block and slides, two limit protrusions are equipped on the both sides of sliding lock block, the inside of limit slide hole is equipped with limit protrusion and slides, a plurality of tension springs are connected between the bottom of limit slide hole and limit protrusion, one side of fixed plate is equipped with lock hole.

[0008] By adopting the technical scheme, the air inlet pipe air intake amount is controlled by using the air valve, the filtering mechanism can be installed and removed in a portable manner by using the portable mounting rack, without using tools, the installation and removal method is very simple, the efficiency is very high, time is saved, the portable mounting rack can pass through the side wall of the filtering pipe to be installed by using the portable mounting groove, the portable mounting rack can be fixed by using the fixing plate, the portable mounting rack is limited by using the limiting mechanism, the portable mounting rack can be locked and unlocked by using the locking mechanism, the sealing between the portable mounting rack and the filtering pipe is enhanced by using the sealing mechanism, the sliding rod sliding hole, the unlocking sliding rod, the unlocking groove and the extension spring are used, when the end of the unlocking sliding rod is pressed to reach the limit position, the unlocking sliding rod will compress the extension spring to slide to the deep part of the sliding rod sliding hole until the unlocking groove is opposite to the bottom of the sliding lock block, and when the pressing of the unlocking sliding rod is stopped, the unlocking sliding rod will return to the original position under the elastic force of the extension spring, the sliding block sliding hole, the limiting sliding hole, the sliding lock block, the limiting protrusion and the tension spring are used, when the unlocking groove is opposite to the bottom of the sliding lock block, the limiting protrusion will slide to the bottom of the limiting sliding hole under the tension of the tension spring, and the sliding lock block will slide to the bottom of the sliding block sliding hole under the driving of the limiting protrusion until the unlocking groove is in contact, at this time, the sliding lock block will release the locking effect of the lock hole, the side of the unlocking groove is inclined, when the unlocking sliding rod returns to the original position under the elastic force of the extension spring, the inclined surface of the unlocking groove will form an upward component force on the sliding lock block, at this time, the sliding lock block will stretch the tension spring to return to the original position under the effect of the force.

[0009] The filtering mechanism is a multiple filter screen, and the multiple filter screen is installed on the inner side of the portable mounting rack.

[0010] The multiple filter screen is used to filter dust and impurities carried by the circulating air.

[0011] The limiting mechanism comprises T-shaped limiting protrusions and T-shaped limiting grooves, the two sides of the portable mounting rack are provided with a plurality of T-shaped limiting protrusions, and one side of the fixing plate is provided with a plurality of T-shaped limiting grooves matched with the T-shaped limiting protrusions.

[0012] The T-shaped limiting protrusions and the T-shaped limiting grooves are used to guide and limit the installation of the portable mounting rack, the T-shaped limiting protrusion is aligned with the T-shaped limiting groove and then is moved upwards until the T-shaped limiting protrusion is completely overlapped with the T-shaped limiting groove, so that the installation of the portable mounting rack is completed.

[0013] The utility model further sets up, the sealing mechanism includes first sealing strip and second sealing strip, one first sealing strip and two second sealing strips are fixedly installed to one side of portable mounting bracket, the inner wall of filter pipe is equipped with the first closed groove that cooperates with first sealing strip, the top of portable mounting groove is equipped with two second closed grooves that cooperate with second sealing strip.

[0014] Through adopting above technical scheme, using first sealing strip, second sealing strip and first closed groove, second closed groove, thereby enhancing the air -tightness between portable mounting bracket and filter pipe, make air must pass through filter mechanism and cannot penetrate out.

[0015] The utility model further sets up, the portable mounting bracket one side is equipped with installation mouth, the bottom fixed mounting of installation mouth has pull handle.

[0016] Through adopting above technical scheme, using pull handle to thereby facilitate staff to portable mounting bracket installs and removes under stress.

[0017] The utility model further sets up, the one side of pull handle is equipped with a plurality of recess that is suitable for finger deposit and force.

[0018] Through adopting above technical scheme, make finger more comfortable and more easily forceful to pull handle on pull handle.

[0019] The utility model further sets up, first sealing strip and second sealing strip are all made of rubber that good elasticity performance, tenacity is strong.

[0020] Through adopting above technical scheme, make first sealing strip and second sealing strip more strong in sealing property when using.

[0021] The utility model further sets up, the size of first closed groove and second closed groove is less than the size of first sealing strip and second sealing strip.

[0022] Through adopting above technical scheme, make portable mounting bracket first sealing strip and second sealing strip will extrude after installing, thereby enhancing the contact closed effect of first closed groove, second closed groove and first sealing strip, second sealing strip.

[0023] The utility model further sets up, the tension spring is in the initial state and is in the state of stretching.

[0024] Through adopting above technical scheme, thereby when reaching the limit position of pressing unlocking slide bar, sliding lock block will be received the tension of tension spring and enter unlocking recess, thereby accomplishing the unlocking of locking mechanism.

[0025] Summarized above, the utility model mainly has following beneficial effect:

[0026] 1. The portable mounting frame and filter pipe of the utility model can be installed and removed conveniently, the end of the unlocking slide rod can be unlocked by pressing, the end of the unlocking slide rod can be automatically locked by releasing the pressing, no tools are needed, the installation and removal method is very simple, the efficiency is very high, and time is saved.

[0027] 2. The utility model discloses a sealing mechanism is arranged to enhance the airtightness between the portable mounting frame and the filter pipe, when the portable mounting frame is installed, the first sealing strip and the second sealing strip can extrude the first closed groove and the second closed groove to enhance the connection airtight effect between the portable mounting frame and the filter pipe, so that air only circulates in the filter pipe and cannot penetrate out from the connection. BRIEF DESCRIPTION OF DRAWINGS

[0028] Figure 1 It is one side structure schematic drawing of the utility model;

[0029] Figure 2 It is one side enlarged structure schematic drawing of the filter pipe of the utility model;

[0030] Figure 3 It is split structure schematic drawing of the filter pipe and the portable mounting frame of the utility model;

[0031] Figure 4 It is one side structure schematic drawing of the portable mounting frame of the utility model;

[0032] Figure 5 It is section structure schematic drawing of the filter pipe and the fixed plate of the utility model;

[0033] Figure 6 It is section structure schematic drawing of the locking mechanism of the utility model;

[0034] Figure 7 It is section structure schematic drawing of the locking mechanism shell part of the utility model;

[0035] Figure 8 It is part structure schematic drawing of the locking mechanism of the utility model;

[0036] In the figure: 1, ventilation pipe; 11, adapter pipe; 12, air inlet pipe; 13, air valve; 14, filter pipe; 15, portable installation groove; 16, first closed groove; 17, second closed groove; 2, multiple filter screen; 3, portable mounting frame; 31, sliding rod sliding hole; 32, sliding block sliding hole; 33, limiting sliding hole; 34, unlocking sliding rod; 35, unlocking groove; 36, extension spring; 37, sliding lock block; 38, limiting protrusion; 39, tension spring; 310, T-shaped limiting protrusion; 311, first sealing strip; 312, second sealing strip; 313, mounting port; 314, pull handle; 4, fixed plate; 41, lock hole; 42, T-shaped limiting groove. DETAILED DESCRIPTION

[0037] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. The embodiments described below with reference to the drawings are exemplary and are only used for explaining the utility model and cannot be understood as limiting the utility model.

[0038] The embodiments of the utility model will be described below according to the overall structure of the utility model.

[0039] A kind of ventilation device for wisdom civil air defense engineering, such as Figure 1 Figure 8 ​As shown, including ventilation pipe 1, one end of the ventilation pipe 1 is connected with adapter pipe 11, one side of the adapter pipe 11 is connected with multiple air inlet pipe 12, the air inlet pipe 12 is equipped with air valve 13, the air valve 13 is equipped to control the air inlet pipe 12 air intake, the other end of the ventilation pipe 1 is connected with filter pipe 14, the inner side of the filter pipe 14 is equipped with filter mechanism, the filter mechanism is multiple filter screen 2, the multiple filter screen 2 is equipped to filter dust and impurities carried by circulating air, one side of the filter pipe 14 is provided with portable mounting groove 15, the outer side of the filter mechanism is equipped with portable mounting bracket 3, the portable mounting bracket 3 is equipped to portable installation and removal of filter mechanism, without using tools, the installation and removal method is very simple, and the efficiency is very high, it is very time-saving, the portable mounting groove 15 is equipped, so that the portable mounting bracket 3 can pass through the side wall of the filter pipe 14 to install, one side of the filter pipe 14 is fixedly provided with two symmetrical fixed plates 4, the fixed plate 4 is equipped to fix the portable mounting bracket 3, the portable mounting bracket 3 and the fixed plate 4 are equipped with limiting mechanism and locking mechanism, the limiting mechanism is equipped to limit the portable mounting bracket 3, the locking mechanism is equipped to lock and unlock the portable mounting bracket 3, the filter pipe 14 and the portable mounting bracket 3 are equipped with sealing mechanism, the sealing mechanism is equipped to enhance the airtightness between the portable mounting bracket 3 and the filter pipe 14, the locking mechanism comprises slide rod slide hole 31, one side of the portable mounting bracket 3 is provided with slide rod slide hole 31, the top and bottom of the slide rod slide hole 31 is provided with two slide block slide hole 32, two limiting slide hole 33 are provided on the symmetrical sides of the slide block slide hole 32, the inner side of the slide rod slide hole 31 is slidably provided with unlocking slide rod 34, the top and bottom of the unlocking slide rod 34 is provided with unlocking groove 35, one side of the unlocking groove 35 is inclinedly arranged, the bottom of the slide rod slide hole 31 is connected with telescopic spring 36, one end of the telescopic spring 36 is connected with the unlocking slide rod 34, the inner side of the slide block slide hole 32 is slidably provided with sliding lock block 37, two limiting protrusions 38 are arranged on the two sides of the sliding lock block 37, the limiting protrusions 38 are slidably arranged in the inner side of the limiting slide hole 33, a plurality of tension springs 39 are connected between the bottom of the limiting slide hole 33 and the limiting protrusions 38, the tension spring 39 is in tension state in the initial state, so that when the unlocking slide rod 34 is pressed to the limit position, the sliding lock block 37 will be pulled into the unlocking groove 35 by the tension of the tension spring 39, thereby completing the unlocking of the locking mechanism, one side of the fixed plate 4 is provided with lock hole 41, the slide rod slide hole 31, the unlocking slide rod 34, the unlocking groove 35 and the telescopic spring 36 are arranged, so that when the end of the unlocking slide rod 34 is pressed to the limit position, the unlocking slide rod 34 will compress the telescopic spring 36 and slide to the deep part of the slide rod slide hole 31 until the unlocking groove 35 is opposite to the bottom of the sliding lock block 37, and when the unlocking slide rod 34 is stopped,The unlocking slide rod 34 will be returned to the original position by the elastic force of the telescopic spring 36. By being provided with the sliding block sliding hole 32, the limiting sliding hole 33, the sliding lock block 37, the limiting protrusion 38 and the tension spring 39, when the unlocking groove 35 is directly opposite the bottom of the sliding lock block 37, the limiting protrusion 38 will slide to the bottom of the limiting sliding hole 33 under the pulling force of the tension spring 39, and the sliding lock block 37 will slide to the bottom of the sliding block sliding hole 32 under the driving of the limiting protrusion 38 until it is in contact with the unlocking groove 35. At this time, the sliding lock block 37 will release the locking effect on the lock hole 41. By inclining one side of the unlocking groove 35, when the unlocking slide rod 34 is returned to the original position under the elastic force of the telescopic spring 36, the inclined surface of the unlocking groove 35 will form an upward component force on the sliding lock block 37. At this time, the sliding lock block 37 will be stretched to return to the original position under the effect of the force.

[0040] Please refer to Figure 2 Figure 4 The limiting mechanism includes T-shaped limiting protrusions 310 and T-shaped limiting grooves 42. The two sides of the portable mounting rack 3 are provided with a plurality of T-shaped limiting protrusions 310. One side of the fixed plate 4 is provided with a plurality of T-shaped limiting grooves 42 matched with the T-shaped limiting protrusions 310. By being provided with the T-shaped limiting protrusions 310 and the T-shaped limiting grooves 42, the installation of the portable mounting rack 3 can be guided and limited. By aligning the T-shaped limiting protrusions 310 with the T-shaped limiting grooves 42 and then moving upward, until the T-shaped limiting protrusions 310 completely coincide with the T-shaped limiting grooves 42, the installation of the portable mounting rack 3 is completed.

[0041] Please refer to Figure 4 and Figure 5 The sealing mechanism includes a first sealing strip 311 and two second sealing strips 312. One side of the portable mounting rack 3 is fixedly provided with a first sealing strip 311 and two second sealing strips 312. The inner wall of the filter pipe 14 is provided with a first sealing groove 16 matched with the first sealing strip 311. The top of the portable mounting groove 15 is provided with two second sealing grooves 17 matched with the second sealing strips 312. By being provided with the first sealing strip 311, the second sealing strip 312 and the first sealing groove 16 and the second sealing groove 17, the air tightness between the portable mounting rack 3 and the filter pipe 14 is enhanced, so that the air must pass through the filtering mechanism and cannot penetrate out. The first sealing strip 311 and the second sealing strip 312 are both made of rubber with good elasticity and strong toughness, so that the first sealing strip 311 and the second sealing strip 312 have stronger sealing performance when in use. The size of the first sealing groove 16 and the second sealing groove 17 is smaller than that of the first sealing strip 311 and the second sealing strip 312, so that the first sealing strip 311 and the second sealing strip 312 will be squeezed after the portable mounting rack 3 is installed, thereby enhancing the contact sealing effect of the first sealing groove 16, the second sealing groove 17 and the first sealing strip 311, the second sealing strip 312.​

[0042] Please refer to Figure 3 and Figure 4 , one side of the portable mounting frame 3 is provided with a mounting port 313, and the bottom of the mounting port 313 is fixedly provided with a pull handle 314. The pull handle 314 is provided to facilitate the force installation and removal of the portable mounting frame 3 by the staff. A plurality of recesses suitable for placing and exerting force of fingers are formed on one side of the pull handle 314, so that the fingers placed on the pull handle 314 are more comfortable and it is easier to exert force on the pull handle 314.

[0043] The working principle of the utility model is as follows: when the device works, external air enters through a plurality of air inlet pipes 12, passes through the adapter pipe 11 and the ventilation pipe 1, and then passes through the filter pipe 14 to flow with internal air. The air flow can be controlled by adjusting the air valve 13. When the filter mechanism needs to be cleaned after the device works for a period of time, the end of the unlocking slide rod 34 is pressed to the limit position to unlock the portable mounting frame 3. At this time, the portable mounting frame 3 and the multiple filter screens 2 can be removed by pulling the pull handle 314. The unlocking principle of the portable mounting frame 3 is that when the end of the unlocking slide rod 34 is pressed to the limit position, the unlocking slide rod 34 will compress the extension spring 36 to slide to the deep part of the slide rod slide hole 31 until the unlocking groove 35 is opposite to the bottom of the sliding lock block 37. At this time, the limiting protrusion 38 will slide to the bottom of the limiting slide hole 33 under the tension of the tension spring 39, and the sliding lock block 37 will slide to the bottom of the sliding block slide hole 32 under the driving of the limiting protrusion 38 until it contacts the unlocking groove 35. At this time, the sliding lock block 37 will unlock the locking hole 41. After the filter mechanism is cleaned, the T-shaped limiting protrusion 310 on the portable mounting frame 3 is aligned with the T-shaped limiting groove 42 and then moved upward, and the end of the unlocking slide rod 34 needs to be pressed to the limit position until the T-shaped limiting protrusion 310 is completely overlapped with the T-shaped limiting groove 42 to stop pressing. At this time, the locking mechanism will automatically lock to complete the installation of the portable mounting frame 3 and the filter mechanism. The principle of automatic locking is that when the pressing of the unlocking slide rod 34 is stopped, the unlocking slide rod 34 will move to the original position under the elastic force of the extension spring 36. In the process of moving, the inclined surface of the unlocking groove 35 will form an upward force on the sliding lock block 37, and the sliding lock block 37 will stretch the tension spring 39 to return to the original position and form a lock with the locking hole 41 on the fixed plate 4.

[0044] Although the embodiments of the utility model have been shown and described, the specific embodiments are only the explanation of the utility model, and are not the limitation of the utility model, and the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable way, and the person skilled in the art can make the modification, replacement and change of the embodiments without the creative contribution after reading the specification without departing from the principles and the purpose of the utility model, but as long as in the claim range of the utility model, it is protected by the patent law.

Claims

1. A ventilation device for intelligent civil defense engineering, comprising a ventilation pipe (1), one end of which is connected to a connecting pipe (11), one side of which is connected to a plurality of air inlet pipes (12), each air inlet pipe (12) being provided with an air valve (13), and the other end of which is connected to a filter pipe (14), characterized in that: The inner side of the filter pipe (14) is provided with a filtering mechanism, one side of the filter pipe (14) is provided with a portable mounting groove (15), the outer side of the filtering mechanism is provided with a portable mounting rack (3), the one side of the filter pipe (14) is fixedly provided with two symmetrical fixed plates (4), the portable mounting rack (3) and the fixed plate (4) are provided with a limiting mechanism and a locking mechanism, the filter pipe (14) and the portable mounting rack (3) are provided with a sealing mechanism, the locking mechanism comprises a sliding rod sliding hole (31), one side of the portable mounting rack (3) is provided with a sliding rod sliding hole (31), the top and the bottom of the sliding rod sliding hole (31) are provided with two sliding block sliding holes (32), the two sides of the sliding block sliding hole (32) are provided with two limiting sliding holes (33), the inner side of the sliding rod sliding hole (31) is slidably provided with an unlocking sliding rod (34), the top and the bottom of the unlocking sliding rod (34) are provided with unlocking grooves (35), one side of the unlocking groove (35) is inclinedly arranged, the bottom of the sliding rod sliding hole (31) is connected with a telescopic spring (36), one end of the telescopic spring (36) is connected with the unlocking sliding rod (34), the inner side of the sliding block sliding hole (32) is slidably provided with a sliding lock block (37), the two sides of the sliding lock block (37) are provided with two limiting protrusions (38), the limiting protrusion (38) is slidably arranged on the inner side of the limiting sliding hole (33), a plurality of tension springs (39) are connected between the bottom of the limiting sliding hole (33) and the limiting protrusion (38), and one side of the fixed plate (4) is provided with a lock hole (41).

2. The ventilation device for intelligent civil air defense engineering according to claim 1, characterized in that: The filtering mechanism is a multiple filter screen (2), and the multiple filter screen (2) is arranged on the inner side of the portable mounting rack (3).

3. The ventilation device for intelligent civil air defense engineering according to claim 1, characterized in that: The limiting mechanism comprises T-shaped limiting protrusions (310) and T-shaped limiting grooves (42), the two sides of the portable mounting rack (3) are provided with a plurality of T-shaped limiting protrusions (310), and one side of the fixed plate (4) is provided with a plurality of T-shaped limiting grooves (42) matched with the T-shaped limiting protrusions (310).

4. The ventilation device for intelligent civil air defense engineering according to claim 1, characterized in that: The sealing mechanism comprises a first sealing strip (311) and a second sealing strip (312), one first sealing strip (311) and two second sealing strips (312) are fixedly arranged on one side of the portable mounting rack (3), a first sealing groove (16) matched with the first sealing strip (311) is formed in the inner wall of the filter pipe (14), and two second sealing grooves (17) matched with the second sealing strips (312) are formed in the top of the portable mounting groove (15).

5. The ventilation device for intelligent civil air defense engineering according to claim 1, characterized in that: One side of the portable mounting rack (3) is provided with a mounting opening (313), and the bottom of the mounting opening (313) is fixedly provided with a pull handle (314).

6. The ventilation device for intelligent civil air defense engineering according to claim 5, characterized in that: A plurality of grooves suitable for placing and exerting force of fingers are formed in one side of the pull handle (314), so that the fingers are more comfortable on the pull handle (314) and it is easier to exert force on the pull handle (314).

7. The ventilation device for intelligent civil air defense engineering according to claim 4, characterized in that: The first sealing strip (311) and the second sealing strip (312) are made of rubber with good elasticity and toughness, so that the first sealing strip (311) and the second sealing strip (312) have stronger sealing performance in use.

8. The ventilation device for intelligent civil air defense engineering according to claim 4, characterized in that: The sizes of the first closed groove (16) and the second closed groove (17) are smaller than those of the first sealing strip (311) and the second sealing strip (312), so that the first sealing strip (311) and the second sealing strip (312) are pressed after the portable mounting rack (3) is mounted, thereby enhancing the contact and sealing effect of the first closed groove (16), the second closed groove (17), the first sealing strip (311) and the second sealing strip (312).

9. The ventilation device for intelligent civil air defense engineering according to claim 1, characterized in that: The tension spring (39) is in a stretched state in an initial state, so that when the unlocking slide rod (34) is pressed to reach a limited position, the sliding lock block (37) is pulled into the unlocking groove (35) by the tension of the tension spring (39), thereby completing the unlocking of the locking mechanism.

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