Civil air defense door with quick locking function

Abstract

The utility model discloses a civil air defense door with a quick locking function, which comprises a left door body and a right door body, a positioning mechanism is arranged on one side of the left door body adjacent to the right door body, and a locking mechanism is arranged on one side of the positioning mechanism on the left door body and the right door body. The safety door is simple in structure and reasonable in design, the position of the positioning cross rod is changed through mutual contact after the two door bodies are closed, so that the control rope is released, positioning pins at the upper end and the lower end of the left door body 1 are fixed to a wall, the whole process can be triggered after the left door body and the right door body are in place, manual intervention is not needed, response is rapid, and safety is high. The closing efficiency of the civil air defense door and the overall safety performance of civil air defense engineering are effectively improved, meanwhile, the active locking effect after the right door body makes contact with the left door body is achieved, the overall structure is simple, locking is rapid, later door opening operation is convenient, and the locking efficiency of the civil air defense door and the overall safety performance of the civil air defense engineering are further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of civil air defense equipment, in particular to a civil air defense door with a quick locking function. Background Art

[0002] In the modern urban defense system, civil air defense projects are a very critical part, which aims to provide safe shelters for people in emergency situations. As an important part of civil air defense projects, the design and function of civil air defense doors are directly related to the efficiency of refuge and the safety of personnel.

[0003] Deficiencies of existing technology:

[0004] At present, most common civil air defense doors are made of heavy steel structures with manual locks. However, due to the large size and weight of civil air defense doors, heavy locks are generally used, which are also large in size and weight. Handwheels are needed to drive the locking and unlocking functions, especially for double-leaf civil air defense doors. When closing, it is necessary to first push and pull the door body on one side to close it and drive the lock by handwheel to position the upper and lower ends of the door body on this side with the wall, then push and pull the door body on the other side to close it, and then drive the lock by handwheel to lock the door bodies on both sides. Although this design is relatively simple in structure, it has significant operational efficiency problems, because the lock needs to be driven by handwheel, especially the fixation between the first door body and the wall. Since the positioning pins at the upper and lower ends of the door body need to be driven to extend outward, the handwheel needs to be turned a large number of times. The whole process is time-consuming and laborious, resulting in slow closing of the civil air defense door and low efficiency, especially in emergency situations, which affects the overall safety performance of the civil air defense project. Utility Model Content

[0005] The purpose of the utility model is to provide a civil defense door with a quick locking function to solve the problems raised in the above background technology.

[0006] To achieve the above object, the utility model provides the following technical solution: a civil air defense door with a quick locking function, comprising a left door body and a right door body, a positioning mechanism is provided on one side of the left door body adjacent to the right door body, and a locking mechanism is provided on one side of the positioning mechanism on the left door body and the right door body;

[0007] The positioning mechanism comprises:

[0008] A positioning pin, wherein the positioning pin is slidably connected in the mounting holes at the upper and lower ends of the left door body, and a positioning spring is arranged in the mounting holes at the upper and lower ends of the left door body and on the inner side of the positioning pin;

[0009] A sliding card slot, the sliding card slot is provided on a side adjacent to the left door body and the right door body, a positioning cross bar is movably provided in the sliding card slot, and mutually meshing tooth grooves are provided on the surface where the sliding card slot and the positioning cross bar are in contact;

[0010] A mounting shell, the mounting shell is arranged on the outer wall of the left door body and is located outside the sliding slot, the positioning cross bar is slidably connected to the mounting shell, and a locking spring is arranged between one end of the inner wall of the mounting shell and the positioning cross bar;

[0011] A control rope, one end of which is connected to the positioning pin, and the other end of which passes through a rope groove and a tooth groove on the left door body and is arranged on the outside of the left door body.

[0012] Preferably, the locking mechanism comprises:

[0013] A locking rod, the locking rod is tiltably arranged in a mounting groove on one side of the left door body and the right door body, and one end of the positioning cross bar located inside the left door body passes through a sliding slot and is arranged on one side of the locking rod;

[0014] A locking groove, which is provided on one side of the right door body and matches the locking rod;

[0015] A push block, the push block is arranged on the door edge of the right door body and on one side of the locking groove;

[0016] A pull rope, one end of which is connected to the upper end of the locking rod, and the other end of which passes through a rope groove on the left door body and is arranged on the outer side of the left door body.

[0017] Preferably, levers are provided on both sides of the positioning cross bar, and one end of the lever is slidably connected to the sliding grooves on both sides of the mounting shell.

[0018] Preferably, the lower end of the locking rod is rotatably connected to the mounting groove on the left door body by setting a pin shaft.

[0019] Preferably, the inclination angle of the locking rod is 80-85 degrees.

[0020] Preferably, mutually matching sealing strips and sealing grooves are respectively provided on adjacent sides of the left door body and the right door body.

[0021] Compared with the prior art, the beneficial effects of the utility model are:

[0022] The civil air defense door with a quick locking function is provided with a positioning mechanism, which includes a positioning pin, a positioning spring, a sliding card slot, a positioning cross bar, a mounting shell, a locking spring and a control rope. After the two door bodies are closed, the position of the positioning cross bar is changed by mutual contact, thereby releasing the control rope, and the upper and lower positioning pins of the left door body 1 are fixed to the wall. The whole process can be triggered after the left door body and the right door body are in place, without human intervention, and the response is rapid, which effectively improves the closing efficiency of the civil air defense door and the overall safety performance of the civil air defense project;

[0023] This civil air defense door with a quick locking function is provided with a locking mechanism, which includes a locking rod, a locking groove, a push block and a pull rope, thereby achieving an active locking effect after the right door body contacts the left door body. The overall structure is simple, the locking is fast, and the later door opening operation is convenient, which further improves the locking efficiency of the civil air defense door and the overall safety of the civil air defense project. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is the overall front view of the utility model;

[0025] Figure 2 It is a side view schematic diagram of the internal structure of the left door body of the utility model;

[0026] Figure 3 It is a schematic diagram of the front view of the internal structure of the left door body of the utility model;

[0027] Figure 4 It is a top view schematic diagram of the internal structure of the left door body and the right door body of the utility model;

[0028] Figure 5 This is a schematic diagram of the closing of the civil air defense door of the utility model;

[0029] Figure 6 For the utility model Figure 2 An enlarged schematic diagram at A in FIG.

[0030] Figure 7 For the utility model Figure 4 A magnified schematic diagram at B in FIG.

[0031] In the figure: 1. left door body; 2. right door body; 3. positioning mechanism; 301. positioning pin; 302. positioning spring; 303. sliding slot; 304. positioning cross bar; 305. mounting shell; 306. locking spring; 307. control rope; 4. locking mechanism; 401. locking rod; 402. locking slot; 403. push block; 404. pull rope; 5. lever; 6. sealing strip; 7. sealing slot. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0034] In the description of this patent, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "setting" should be understood in a broad sense, for example, it can be fixed connection, setting, or detachable connection, setting, or integrated connection, setting. For ordinary technicians in this field, the specific meanings of the above terms in this patent can be understood according to specific circumstances.

[0035] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "several" is two or more, unless otherwise clearly and specifically defined. Example

[0036] See also Figure 1-7As shown, the utility model provides a technical solution for a civil air defense door with a quick locking function: a civil air defense door with a quick locking function, comprising a left door body 1 and a right door body 2, a positioning mechanism 3 is installed on the side of the left door body 1 adjacent to the right door body 2, and a locking mechanism 4 is installed on one side of the positioning mechanism 3 on the left door body 1 and the right door body 2; the positioning mechanism 3 comprises a positioning pin 301, a sliding slot 303, a mounting shell 305 and a control rope 307, the positioning pin 301 is slidably connected to the mounting holes at the upper and lower ends of the left door body 1, a positioning spring 302 is installed on the inner side of the positioning pin 301 in the mounting holes at the upper and lower ends of the left door body 1, and the sliding slot 303 is arranged on the side of the left door body 1 adjacent to the right door body 2 A positioning cross bar 304 is slidably connected in the sliding slot 303, and a mutually meshing groove is provided on the surface where the sliding slot 303 and the positioning cross bar 304 are in contact. The mounting shell 305 is fixedly mounted on the outer wall of the left door body 1 and is located on the outside of the sliding slot 303. The positioning cross bar 304 is slidably connected to the mounting shell 305. A locking spring 306 is installed between one end of the inner wall of the mounting shell 305 and the positioning cross bar 304. One end of the control rope 307 is connected to the positioning pin 301, and the other end of the control rope 307 passes through the rope groove and the groove on the left door body 1 and is movably placed on the outside of the left door body 1. The groove on the surface where the sliding slot 303 and the positioning cross bar 304 are in contact limits the control rope 307. When it is necessary to close the civil air defense door, first rotate the left door body 1 to move the left door body 1 to the closed position first, and then rotate the right door body 2. The right door body 2 drives the locking mechanism 4 to contact the left door body 1. During the horizontal rotation of the locking mechanism 4, it touches the positioning cross bar 304, and overcomes the elastic force of the locking spring 306 to push the positioning cross bar 304 to move horizontally, causing the sliding slot 303 to separate from the tooth grooves on the fitting surface of the positioning cross bar 304, and releases the restraint on the control rope 307. After losing the tension of the control rope 307, the positioning pin 301 pops out to the upper and lower ends of the left door body 1 under the action of the positioning spring 302, and is inserted into the positioning holes on the upper and lower door frames or the wall to complete the rapid positioning of the left door body 1. At the same time, after losing the limiting effect of the positioning cross bar 304, the locking mechanism 4 also actively completes the locking between the left door body 1 and the right door body 2. Through the positioning mechanism 3, after the two door bodies are closed, the position of the positioning cross bar 304 is changed by mutual contact, thereby releasing the control rope 307, and the upper and lower positioning pins 301 of the left door body 1 are fixed to the wall. The whole process can be triggered after the left door body 1 and the right door body 2 are in place. No human intervention is required and the response is rapid, which effectively improves the closing efficiency of the civil air defense door and the overall safety performance of the civil air defense project.

[0037] The locking mechanism 4 includes a locking rod 401, a locking groove 402, a push block 403 and a pull rope 404. The locking rod 401 is tilted and rotatably installed in the installation groove on the adjacent side of the left door body 1 and the right door body 2. The lower end of the locking rod 401 is rotatably connected to the installation groove on the left door body 1 by installing a thick pin shaft. The end of the positioning cross bar 304 located inside the left door body 1 passes through the sliding slot 303 and is movably installed on one side of the locking rod 401 to support the locking rod 401. The locking groove 402 is opened on one side of the right door body 2 and matches the locking rod 401. The push block 403 is fixedly installed on the door edge of the right door body 2 on one side of the locking groove 402. The push block 403 is used to push the horizontal movement of the positioning cross bar 304. One end of the pull rope 404 is connected to the upper end of the locking rod 401, and the other end of the pull rope 404 passes through the rope groove on the left door body 1 and is hung on the outside of the left door body 1. In the process of the right door body 2 closing to the left door body 1, the push block 403 first contacts the positioning cross bar 304 until the right door body 2 and the left door body 1 are completely closed. At this time, there is no obstruction on the side of the locking rod 401 adjacent to the right door body 2. The inclined locking rod 401 rotates into the locking groove 402 of the right door body 2 under the action of gravity to achieve the locking between the two door bodies. When the door needs to be opened later, the pull rope 404 is pulled to drive the locking rod 401 to rotate, so that the locking rod 401 leaves the locking groove 402, and the right door body 2 can be pushed at this time. Through the locking mechanism 4, the active locking effect after the right door body 2 contacts the left door body 1 is achieved, the overall structure is simple, the locking is fast, and the door opening operation is convenient in the later stage, which further improves the locking efficiency of the civil air defense door and the overall safety of the civil air defense project.

[0038] The lever 305 is fixedly installed on both sides of the positioning cross bar 304, and one end of the lever 5 is slidably connected to the sliding grooves on both sides of the mounting shell 305. When the right door body 2 is opened and the positioning between the upper and lower ends of the left door body 1 and the wall needs to be cancelled, the lever 5 is pulled outward, and the lever 5 overcomes the elastic force of the locking spring 306 again to push the positioning cross bar 304 to move horizontally, causing the sliding slot 303 to separate from the tooth grooves on the fitting surface of the positioning cross bar 304, thereby releasing the restraint on the control rope 307. At this time, the control rope 307 is pulled outward, driving the positioning pin 301 to overcome the elastic force of the positioning spring 302 and return to the mounting holes at the upper and lower ends of the left door body 1. Then the lever 5 is released, and the control rope 307 is fixed again after the positioning cross bar 304 is reset. At this time, the left door body 1 is opened.

[0039] The inclination angle of the locking rod 401 is 80-85 degrees. When the angle is greater than 85 degrees, the locking rod 401 may be difficult to actively rotate after losing the limit due to insufficient inclination. When the inclination angle of the locking rod 401 is less than 80 degrees, it will occupy more space.

[0040] The adjacent sides of the left door body 1 and the right door body 2 are respectively installed with matching sealing strips 6 and sealing grooves 7. After the left door body 1 and the right door body 2 are closed, the sealing strip 6 and the sealing groove 7 are pressed against each other, which is beneficial to improve the overall sealing of the civil air defense door.

[0041] The working principle of the utility model is as follows:

[0042] When closing a civil air defense door with a quick locking function in this embodiment, the left door body 1 is first moved to the closed position, and then the right door body 2 is rotated toward the left door body 1, and the push block 403 first contacts the positioning cross bar 304 until the right door body 2 and the left door body 1 are completely closed. At this time, there is no shielding on the side adjacent to the right door body 2 of the locking rod 401, and the inclined locking rod 401 rotates into the locking groove 402 of the right door body 2 under the action of gravity to achieve the locking between the two door bodies. In the process of the push block 403 contacting the positioning cross bar 304, the positioning cross bar 304 is pushed open horizontally, causing the sliding slot 303 and the tooth groove on the fitting surface of the positioning cross bar 304 to separate, and the restraint on the control rope 307 is released. After the tension of the control rope 307 is lost, the positioning pin 301 pops out to the upper and lower ends of the left door body 1 under the action of the positioning spring 302, and is stuck in the positioning holes on the upper and lower door frames or the wall. At this time, the left door body 1 and the right door body 2 are quickly closed and locked. When the door needs to be opened later, the pull rope 404 is first pulled to drive the locking rod 401 to rotate, so that the locking rod 401 leaves the locking slot 402. At this time, the right door body 2 can be pushed to open it, and then the lever 5 is pulled outward. The lever 5 overcomes the elastic force of the locking spring 306 again and pushes the positioning cross bar 304 to move horizontally, causing the sliding slot 303 and the tooth grooves on the fitting surface of the positioning cross bar 304 to separate, releasing the restraint on the control rope 307. At this time, the control rope 307 is pulled outward, driving the positioning pin 301 to overcome the elastic force of the positioning spring 302 and return to the mounting holes at the upper and lower ends of the left door body 1. Then the lever 5 is released. After the positioning cross bar 304 is reset, the control rope 307 is fixed again. At this time, the left door body 1 is opened. The utility model has a simple structure and a reasonable design. Through the positioning mechanism 3, the position of the positioning cross bar 304 is changed by mutual contact after the two door bodies are closed, thereby releasing the control rope 307, and the upper and lower positioning pins 301 of the left door body 1 are fixed to the wall. The whole process can be triggered after the left door body 1 and the right door body 2 are in place. No human intervention is required and the response is rapid, which effectively improves the closing efficiency of the civil air defense door and the overall safety performance of the civil air defense project. At the same time, through the locking mechanism 4, the active locking effect is achieved after the right door body 2 contacts the left door body 1. The overall structure is simple, the locking is fast, and the later door opening operation is convenient, which further improves the locking efficiency of the civil air defense door and the overall safety of the civil air defense project.

[0043] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A civil air defense door with a quick locking function, comprising a left door body (1) and a right door body (2), characterized in that: A positioning mechanism (3) is provided on one side of the left door body (1) adjacent to the right door body (2), and a locking mechanism (4) is provided on one side of the positioning mechanism (3) on the left door body (1) and the right door body (2); The positioning mechanism (3) comprises: A positioning pin (301), the positioning pin (301) being slidably connected in mounting holes at the upper and lower ends of the left door body (1), and a positioning spring (302) being arranged inside the mounting holes at the upper and lower ends of the left door body (1) and located on the inner side of the positioning pin (301); A sliding slot (303), the sliding slot (303) being provided on a side adjacent to the left door body (1) and the right door body (2), a positioning cross bar (304) being movably provided in the sliding slot (303), and mutually meshing tooth grooves being provided on the surfaces where the sliding slot (303) and the positioning cross bar (304) are in contact; A mounting shell (305), the mounting shell (305) being arranged on the outer wall of the left door body (1) and located outside the sliding slot (303), the positioning cross bar (304) being slidably connected to the mounting shell (305), and a locking spring (306) being arranged between one end of the inner wall of the mounting shell (305) and the positioning cross bar (304); A control rope (307), one end of the control rope (307) being connected to the positioning pin (301), and the other end of the control rope (307) passing through a rope groove and a tooth groove on the left door body (1) and being arranged on the outside of the left door body (1).

2. The civil defense door with quick locking function according to claim 1 is characterized in that: The locking mechanism (4) comprises: A locking rod (401), the locking rod (401) being tiltably disposed in a mounting groove on a side adjacent to the left door body (1) and the right door body (2), and one end of the positioning cross rod (304) located inside the left door body (1) passes through the sliding slot (303) and is disposed on one side of the locking rod (401); A locking groove (402), the locking groove (402) being provided on one side of the right door body (2) and matching with the locking rod (401); A push block (403), the push block (403) being arranged on the door edge of the right door body (2) and located on one side of the locking groove (402); A pull rope (404), one end of the pull rope (404) is connected to the upper end of the locking rod (401), and the other end of the pull rope (404) passes through a rope groove on the left door body (1) and is arranged on the outside of the left door body (1).

3. The civil defense door with quick locking function according to claim 1 is characterized in that: A shifting rod (5) is provided on both sides of the positioning cross bar (304), and one end of the shifting rod (5) is slidably connected to the sliding grooves on both sides of the mounting shell (305).

4. The civil defense door with quick locking function according to claim 2 is characterized in that: The lower end of the locking rod (401) is rotatably connected to the mounting groove on the left door body (1) by means of a pin.

5. The civil defense door with quick locking function according to claim 2 is characterized in that: The inclination angle of the locking rod (401) is 80-85 degrees.

6. The civil defense door with quick locking function according to claim 1, characterized in that: The adjacent sides of the left door body (1) and the right door body (2) are respectively provided with mutually matching sealing strips (6) and sealing grooves (7).

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