Civil air defense closed valve convenient to adjust

Abstract

The utility model relates to the field of civil air defense closed valves, and discloses a civil air defense closed valve convenient to adjust, which comprises a door frame, a civil air defense valve is hinged to the inner wall of the door frame, a supporting mechanism is arranged on the back of the civil air defense valve, a connecting mechanism is arranged on the supporting mechanism, and the supporting mechanism comprises a sliding rail. The sliding rail is arranged on the back of the civil air defense valve, the inner wall of the sliding rail is slidably connected to the inner wall of the sliding block, supporting legs are hinged to the inner wall of the sliding block, and the sliding rail is matched with the sliding block, so that the sliding block can slide in the sliding rail, and the supporting legs hinged to the sliding block are driven to adjust the position. The supporting legs and the limiting rods are fixed through hexagonal inserting rods, rotation of the supporting legs can be limited, and the supporting angles of the supporting legs can be adjusted and fixed. When the civil air defense valve is opened, the supporting legs descend to support the valve, the valve is prevented from shaking due to external influence, and stable supporting and flexible adjustment of the opening angle of the civil air defense valve are achieved.

Description

Technical Field

[0001] This utility model relates to the field of airtight valves for civil defense, and in particular to an airtight valve for civil defense that is easy to adjust. Background Technology

[0002] Civil defense airtight valves are the doors at the entrances and exits of civil defense protection projects. Simply put, they are doors that provide protection for people entering protected areas during wartime, earthquakes, and other natural disasters. Civil defense airtight valves are used by the government to mobilize and organize the masses to take measures to prevent air raids, fight disasters and provide relief, and carry out rescue and disaster mitigation activities. Nowadays, civil defense doors are mostly used at the entrances and exits of underground shopping malls, hospitals, warehouses, underground parking lots, etc.

[0003] According to the announcement "CN215108475U", this easily adjustable airtight valve for civil defense includes a door frame. A shaft is movably mounted on one side of the door frame, connecting the door frame to the door body. A handle is mounted on the door body, and a threaded groove is fixed to the other side of the handle inside the door body. The top of the threaded groove engages with a movable rod. A screw is connected to the other end of the shaft, and the other side of the screw engages with a rotating rod. The rotating rod has a threaded structure in the middle, and a gear is fixedly connected to its other end. This easily adjustable airtight valve uses a control panel to send commands to a hydraulic press, causing the hydraulic press to control the movement of a hydraulic rod through a conduit connected to the top. The movement of the hydraulic rod causes a fixed locking tooth at the top to engage with the bottom tooth groove of the gear. The rotating rod, connected to the other side of the gear, then uses its threaded connection with the screw to restrict and fix the door body, thereby reducing swaying and improving safety performance.

[0004] However, in actual use, without a support device, the opened air-raid shelter door is prone to shaking under the influence of external factors, such as people walking and air flow. This not only causes the door leaf to collide with the door frame and make noise, but may also cause the door leaf to shift in position. Therefore, improvements have been made based on the problems mentioned above. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a conveniently adjustable airtight valve for civil defense, which aims to solve the problem in the prior art that "opened civil defense doors are prone to shaking under the influence of external factors, such as personnel movement and air flow".

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a conveniently adjustable airtight valve for civil defense, including a door frame, with a civil defense valve hinged to the inner wall of the door frame, a support mechanism provided on the back of the civil defense valve, a connecting mechanism provided on the support mechanism, and the support mechanism including a slide rail;

[0007] The slide rail is located on the back of the air defense valve. The inner wall of the slide rail is slidably connected to the inner wall of the slider. The inner wall of the slider is hinged with a support leg.

[0008] As a further description of the above technical solution: a limiting rod is fixedly connected to the outer wall of the civil defense valve, and an insert rod is inserted into the outer wall of the support leg, the insert rod passing through the limiting rod and inserted into the inner wall of the support leg.

[0009] As a further description of the above technical solution: the inner wall of the support leg and the limiting rod is provided with a hexagonal insertion hole, and the insertion rod is hexagonal in shape.

[0010] As a further description of the above technical solution: a horizontal plate is fixedly connected between the outer walls of the supporting legs, and a handle is rotatably connected to the outer wall of the civil defense valve.

[0011] As a further description of the above technical solution: the connecting mechanism includes a support foot, the inner wall of which is inserted into the outer wall of the horizontal plate, and the support foot is detachably connected to the outer wall of the horizontal plate by bolts.

[0012] As a further description of the above technical solution: the number of the support feet is two sets, and the two sets of support feet are symmetrically arranged at both ends of the outer wall of the horizontal plate.

[0013] As a further description of the above technical solution: the support foot is rectangular in shape.

[0014] This utility model has the following beneficial effects:

[0015] 1. In this utility model, the slider and slide rail work together, allowing the slider to slide within the slide rail, thereby adjusting the position of the support leg hinged to it. The support leg is fixed to the limiting rod by a hexagonal insert, which restricts the rotation of the support leg and adjusts and fixes its support angle. When the air-raid shelter valve is opened, the support leg descends to support the valve, preventing it from shaking due to external influences, thus achieving stable support and flexible adjustment of the air-raid shelter valve opening angle.

[0016] 2. In this utility model, the support legs are connected by a horizontal plate, which enhances the overall structural strength and provides installation positions for the support feet. The support feet are inserted into the horizontal plate and provide anti-slip support in contact with the ground. The two sets of symmetrically arranged support feet further improve the balance and stability of the support. At the same time, the support feet are detachably connected to the horizontal plate by bolts, which facilitates the quick replacement of worn or damaged support feet and enables convenient maintenance. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of a conveniently adjustable airtight valve for civil defense proposed in this utility model;

[0018] Figure 2A schematic diagram of the back structure of a conveniently adjustable airtight valve for civil defense proposed in this utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the support mechanism for a conveniently adjustable airtight valve for civil defense, when it is stored.

[0020] Figure 4 This is a schematic diagram of the connection structure between the support leg and the support foot of a conveniently adjustable airtight valve for civil defense proposed in this utility model.

[0021] Figure 5 This is a schematic diagram of the connection mechanism of a conveniently adjustable airtight valve for civil defense proposed in this utility model.

[0022] Legend:

[0023] 1. Door frame; 2. Civil defense valve; 3. Support mechanism; 311. Slide rail; 312. Slider; 313. Support leg; 314. Limiting rod; 315. Insert rod; 316. Horizontal plate; 4. Handle; 5. Connecting mechanism; 511. Support foot; 512. Bolt. Detailed Implementation

[0024] 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.

[0025] Reference Figures 1-3This utility model provides an embodiment of a conveniently adjustable airtight valve for civil defense, including a door frame 1. The door frame 1 forms the frame foundation for the installation of the civil defense valve 2 and provides a hinge support point for the civil defense valve 2. The civil defense valve 2 is hinged to the inner wall of the door frame 1. The civil defense valve 2 is the core component for realizing the airtight function of civil defense and can rotate around the hinge point of the door frame 1 to open and close. A support mechanism 3 is provided on the back of the civil defense valve 2. The support mechanism 3 plays a role in stabilizing and supporting the civil defense valve 2 and ensuring the stability of the valve in the open state. A connecting mechanism 5 is provided on the support mechanism 3 for connecting the support mechanism 3 to the ground or other supports. To enhance overall stability, the support mechanism 3 includes a slide rail 311 located on the back of the air-raid shelter valve 2. The slide rail 311 provides a sliding track for the slider 312, allowing the slider 312 to slide and adjust its position. The inner wall of the slide rail 311 is slidably connected to the inner wall of the slider 312, allowing the slider 312 to slide freely within the slide rail 311, thereby adjusting the position of the support leg 313. The support leg 313 is hinged to the inner wall of the slider 312, and can rotate around the hinge point of the slider 312 to achieve multi-angle adjustment to adapt to different support requirements. A limit rod 314 is fixedly connected to the outer wall of the air-raid shelter valve 2. 14 provides a limiting channel for the insertion rod 315, which cooperates with the support leg 313 to fix the position of the support leg 313. The insertion rod 315 is inserted into the outer wall of the support leg 313. The insertion rod 315 passes through the limiting rod 314 and is inserted into the inner wall of the support leg 313. By inserting into the hexagonal insertion hole, the rotation of the support leg 313 is restricted, and the angle of the support leg 313 is fixed. The inner walls of the support leg 313 and the limiting rod 314 are provided with hexagonal insertion holes. The insertion rod 315 is hexagonal in shape. The hexagonal structure ensures that the insertion rod 315 will not rotate after insertion, effectively fixing the support leg 313. A horizontal plate 316 is fixedly connected between the outer walls of the support legs 313. The horizontal plate 316 connects each support. The support leg 313 enhances the overall structural strength of the support leg 313 and provides an installation position for the support foot 511. The outer wall of the civil defense valve 2 is rotatably connected to the handle 4, which allows the operator to rotate the civil defense valve 2 to realize the opening and closing of the valve. The connecting mechanism 5 includes the support foot 511. The inner wall of the support foot 511 is inserted into the outer wall of the horizontal plate 316. The support foot 511 and the horizontal plate 316 are inserted and cooperate, directly contacting the ground, and playing a supporting and anti-slip role. The support foot 511 is detachably connected to the outer wall of the horizontal plate 316 by bolts 512. Bolts 512 facilitate the installation and removal of the support foot 511, making it convenient for future replacement and maintenance.

[0026] Reference Figure 1 , Figure 4 , Figure 5 There are two sets of support feet 511. The two sets of support feet 511 are symmetrically arranged at both ends of the outer wall of the horizontal plate 316. The symmetrical arrangement makes the support more balanced and stable. The support feet 511 are rectangular in shape. The rectangular structure helps to increase the contact area with the ground and improve the anti-slip support effect.

[0027] Working principle: A support mechanism 3 is installed on the back of the air-raid shelter valve 2. A slide rail 311 is provided behind the air-raid shelter valve 2. A slider 312 is slidably connected to the inner wall of the slide rail 311. A support leg 313 is hinged to the outer wall of the slider 312. The support leg 313 is fixed to the limiting rod 314 by a rod 315 passing through it. When the support leg 313 is hinged to the outer wall of the slider 312, its direction can be adjusted at will. The hexagonal rod 315 limits the adjustment of the support leg 313. When the air-raid shelter valve 2 is opened, the support leg 313 descends to support the air-raid shelter valve 2 and prevents it from shaking due to external factors. At the same time, a support foot 511 is inserted between the horizontal plates 316. The support foot 511 is designed to be non-slip and is detachably connected to the horizontal plate 316 by bolts 512, which facilitates the quick replacement of the support foot 511.

[0028] 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 conveniently adjustable civil defense airtight valve comprising a door frame (1), characterized in that: The inner wall of the door frame (1) is hinged with a civil air defense valve (2), the back of the civil air defense valve (2) is provided with a supporting mechanism (3), the supporting mechanism (3) is provided with a connecting mechanism (5), and the supporting mechanism (3) comprises a sliding rail (311); The sliding rail (311) is opened in the back of the civil air defense valve (2), the inner wall of the sliding rail (311) is slidably connected to the inner wall of a sliding block (312), the inner wall of the sliding block (312) is hinged with a supporting leg (313), the outer wall of the civil air defense valve (2) is fixedly connected with a limiting rod (314), the outer wall of the supporting leg (313) is inserted with an insertion rod (315), and the insertion rod (315) penetrates through the limiting rod (314) and is inserted into the inner wall of the supporting leg (313).

2. The easily adjusted civil defense seal valve according to claim 1, wherein: The inner wall of the supporting leg (313) and the limiting rod (314) is provided with a hexagonal insertion hole, and the insertion rod (315) is hexagonal.

3. The easily adjusted civil defense seal valve according to claim 2, characterized in that: The outer wall of the supporting leg (313) is fixedly connected with a transverse plate (316), and the outer wall of the civil air defense valve (2) is rotatably connected with a handle (4).

4. The easily adjusted civil defense seal valve according to claim 1, wherein: The connecting mechanism (5) comprises a supporting leg (511), the inner wall of the supporting leg (511) is inserted into the outer wall of the transverse plate (316), and the supporting leg (511) is detachably connected to the outer wall of the transverse plate (316) through bolts (512).

5. The easily adjusted civil defense seal valve according to claim 4, characterized in that: The number of the supporting leg (511) is two groups, and the two groups of supporting legs (511) are symmetrically arranged at the two ends of the outer wall of the transverse plate (316).

6. The easily adjusted civil defense seal valve according to claim 4, wherein: The supporting leg (511) is rectangular.

Images