Movable threshold double-leaf protective air-tight door

Abstract

The utility model discloses a movable threshold double-leaf protective air-tight door, and particularly relates to the technical field of protective air-tight doors, the movable threshold double-leaf protective air-tight door comprises an embedded base, and a protective air-tight door fixing device is arranged at the upper end of the embedded base; the protective airtight door fixing device comprises a closing assembly and a fixing assembly, and the lower end of the closing assembly is installed at the upper end of the embedded base. Compared with the prior art, the movable threshold double-leaf protective airtight door has the advantages that the first opening and closing door and the second opening and closing door can be opened, and opening and closing are controlled through the two sets of electric hydraulic cylinders; the closing and locking difficulty of the whole first opening and closing door and the second opening and closing door is greatly reduced, meanwhile, the closing and fixing effects of the first opening and closing door and the second opening and closing door are further improved, the problem that closing and opening of the first opening and closing door and the second opening and closing door are complex is solved, and the practicability and use convenience of the first opening and closing door and the second opening and closing door are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of protective airtight doors. More specifically, the utility model relates to a double-leaf protective airtight door with a movable threshold. Background Art

[0002] The civil air defense door is the door at the entrance of the people's air defense project. The classification of civil air defense doors is relatively distinct, including various civil air defense equipment such as ordinary single and double-leaf protective airtight doors and airtight doors, movable threshold single and double-leaf protective airtight doors and airtight doors, etc. The movable threshold sealing door mostly adopts the embedded type, and there is no protrusion on the ground. The threshold is flush with the ground, which does not affect normal passage. When the existing steel structure double-leaf protective airtight door with a movable threshold is closed and opened, due to the relatively complex structure of the closing device, the flexibility of opening and closing may be reduced after long-term use. After the flexibility of opening and closing is reduced, it is very laborious to open and close the door, resulting in a decrease in the convenience of using the opening and closing door. Content of the Utility Model

[0003] In order to overcome the above-mentioned defects of the prior art, an embodiment of the utility model provides a double-leaf protective airtight door with a movable threshold to solve the problems raised in the above background art.

[0004] To achieve the above object, the utility model provides the following technical solution: A double-leaf protective airtight door with a movable threshold, including an embedded base, and a protective airtight door fixing device is provided at the upper end of the embedded base; the protective airtight door fixing device includes: a closing component and a fixing component, and the lower end of the closing component is installed at the upper end of the embedded base.

[0005] In a preferred embodiment, the closing component includes: a door frame, a first opening and closing door, and a second opening and closing door. The lower end of the door frame is installed at the upper end of the embedded base. One outer wall of the first opening and closing door is rotatably installed on one inner wall of the door frame, and one outer wall of the second opening and closing door is rotatably installed on one inner wall of the other door frame.

[0006] In a preferred embodiment, the fixing component includes: a moving groove, a transverse connecting rod, a longitudinal connecting rod, a fixing ball, a placement frame, an electric hydraulic cylinder, a fixing plate, a docking plug, a slot, and a fixing groove. The fixing groove is arranged at the rear end of the slot, and the slot and the fixing groove are opened inside one side of the first opening and closing door.

[0007] In a preferred embodiment, the front end of the fixing plate is installed at the rear end of the docking plug, and the front end of the longitudinal connecting rod is installed at the rear end of the fixing plate.

[0008] In a preferred embodiment, the rear end of the longitudinal connecting rod is installed at the front end of the transverse connecting rod, one end of the transverse connecting rod is installed inside the fixing ball, and the rear end of the fixing ball is installed at the output end of the electric hydraulic cylinder.

[0009] In a preferred embodiment, the lower end of the electric hydraulic cylinder is fixedly installed inside the placement frame, and the inner side of the placement frame is fixedly installed on the outer wall of the side of the second opening door.

[0010] In a preferred embodiment, the fixing plate and the docking plug are detachably installed inside the slot and the fixing groove, and the moving groove is opened at the front and rear ends of the second opening door.

[0011] The technical effects and advantages of the present utility model:

[0012] A double-leaf protective airtight door with a movable threshold. Compared with the prior art, the first opening door and the second opening door can complete the opening work. The device is controlled to open and close by adopting two groups of electric hydraulic cylinders, which greatly reduces the difficulty of closing and locking the entire first opening door and the second opening door, and further improves the closing and fixing of the first opening door and the second opening door, avoiding the problem that the closing and opening of the first opening door and the second opening door are relatively complicated, and improving the practicability and convenience of use of the first opening door and the second opening door. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the present utility model.

[0014] Figure 2 It is a schematic diagram of the structure of the protective airtight door fixing device of the present utility model.

[0015] Figure 3 It is a schematic diagram of the structure of the closing assembly of the present utility model.

[0016] Figure 4 It is a schematic diagram of the structure of the fixing assembly of the present utility model.

[0017] The reference numerals are: 1, embedded base; 2, protective airtight door fixing device; 21, closing assembly; 211, door frame; 212, first opening door; 213, second opening door; 22, fixing assembly; 221, moving groove; 222, fixing plate; 223, docking plug; 224, slot; 225, fixing groove; 226, electric hydraulic cylinder; 227, transverse connecting rod; 228, longitudinal connecting rod; 229, fixing ball; 220, placement frame. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0019] As shown in the attachedFigures 1-4 As shown in the figure, the utility model provides a double-leaf protective airtight door with a movable threshold, which includes a pre-embedded base 1, and a protective airtight door fixing device 2 is arranged at the upper end of the pre-embedded base 1; the protective airtight door fixing device 2 includes: a closing component 21 and a fixing component 22, and the lower end of the closing component 21 is installed at the upper end of the pre-embedded base 1.

[0020] The closing component 21 includes: a door frame 211, a first opening and closing door 212 and a second opening and closing door 213. The lower end of the door frame 211 is installed at the upper end of the pre-embedded base 1. One outer wall of the first opening and closing door 212 is rotatably installed on one inner wall of the door frame 211, and one outer wall of the second opening and closing door 213 is rotatably installed on one inner wall of the other door frame 211.

[0021] The fixing component 22 includes: a moving groove 221, a transverse connecting rod 227, a longitudinal connecting rod 228, a fixing ball 229, a placing frame 220, an electric hydraulic cylinder 226, a fixing plate 222, a docking plug 223, a slot 224 and a fixing groove 225. The fixing groove 225 is arranged at the rear end of the slot 224. The slot 224 and the fixing groove 225 are opened inside one side of the first opening and closing door 212. The front end of the fixing plate 222 is installed at the rear end of the docking plug 223. The front end of the longitudinal connecting rod 228 is installed at the rear end of the fixing plate 222. The rear end of the longitudinal connecting rod 228 is installed at the front end of the transverse connecting rod 227. One end of the transverse connecting rod 227 is installed inside the fixing ball 229. The rear end of the fixing ball 229 is installed at the output end of the electric hydraulic cylinder 226. The lower end of the electric hydraulic cylinder 226 is fixedly installed inside the placing frame 220. The inner side of the placing frame 220 is fixedly installed on the side outer wall of the second opening and closing door 213. The fixing plate 222 and the docking plug 223 are detachably installed inside the slot 224 and the fixing groove 225. The moving groove 221 is opened at the front and rear ends of the second opening and closing door 213.

[0022] The specific implementation method is as follows: When using the present utility model, start the electric hydraulic cylinder 226. After the electric hydraulic cylinder 226 starts, it drives the docking plug 223 at the output end to move forward. When two groups of electric hydraulic cylinders 226 are started simultaneously to push the fixed plate 222, the fixed plate 222 moves forward. After the fixed plate 222 moves forward, it enters the slot 224 and the fixed groove 225 for docking and fixing support work. When the docking work of the fixed plate 222, the docking plug 223 with the slot 224 and the fixed groove 225 is completed, the first opening and closing door 212 and the second opening and closing door 213 are closed to complete the closing and fixing work. When the first opening and closing door 212 and the second opening and closing door 213 need to be opened, two groups of electric hydraulic cylinders 226 can be started to drive the fixed plate 222 and the docking plug 223 at the output end to move backward. After the fixed plate 222 and the docking plug 223 move backward, they are separated from the docking plug 223 and the slot 224, and the first opening and closing door 212 and the second opening and closing door 213 can complete the opening work. This device controls the opening and closing by using two groups of electric hydraulic cylinders 226, greatly reducing the difficulty of closing and locking the entire first opening and closing door 212 and the second opening and closing door 213, and further improving the fixing of the closing doors of the first opening and closing door 212 and the second opening and closing door 213, avoiding the problem that the closing and opening of the first opening and closing door 212 and the second opening and closing door 213 are relatively complicated, and improving the practicability and convenience of use of the first opening and closing door 212 and the second opening and closing door 213.

[0023] The working principle of the present utility model: When using the present utility model, start the electric hydraulic cylinder 226. After the electric hydraulic cylinder 226 starts, it drives the docking plug 223 at the output end to move forward. When two groups of electric hydraulic cylinders 226 are started simultaneously to push the fixed plate 222, the fixed plate 222 moves forward. After the fixed plate 222 moves forward, it enters the slot 224 and the fixed groove 225 for docking and fixing support work. When the docking work of the fixed plate 222, the docking plug 223 with the slot 224 and the fixed groove 225 is completed, the first opening and closing door 212 and the second opening and closing door 213 are closed to complete the closing and fixing work. When the first opening and closing door 212 and the second opening and closing door 213 need to be opened, two groups of electric hydraulic cylinders 226 can be started to drive the fixed plate 222 and the docking plug 223 at the output end to move backward. After the fixed plate 222 and the docking plug 223 move backward, they are separated from the docking plug 223 and the slot 224, and the first opening and closing door 212 and the second opening and closing door 213 can complete the opening work.

[0024] Finally, several points should be noted: First, in the description of this application, it should be noted that unless otherwise specified and limited, the terms "installation", "connection", "connection" should be understood in a broad sense, which can be mechanical connection or electrical connection, and can also be the communication inside two components, and can be directly connected. "Up", "down", "left", "right", etc. are only used to represent the relative position relationship. When the absolute position of the described object changes, the relative position relationship may change;

[0025] Secondly: In the accompanying drawings of the disclosed embodiments of the present utility model, only the structures related to the disclosed embodiments are involved. For other structures, reference can be made to the general design. Without conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0026] Finally: The above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A double-leaf protective airtight door with a movable threshold, comprising an embedded base (1), characterized in that: The upper end of the embedded base (1) is provided with a protective airtight door fixing device (2); The protective airtight door fixing device (2) includes: a closing component (21) and a fixing component (22), and the lower end of the closing component (21) is installed on the upper end of the embedded base (1).

2. The double-leaf blast-proof airtight door with a movable threshold according to claim 1, characterized in that: The closing component (21) includes: a door frame (211), a first opening and closing door (212) and a second opening and closing door (213). The lower end of the door frame (211) is installed on the upper end of the embedded base (1). One outer wall of the first opening and closing door (212) is rotatably installed on one inner wall of the door frame (211), and one outer wall of the second opening and closing door (213) is rotatably installed on one inner wall of the other door frame (211).

3. The double-leaf blast-proof airtight door with a movable threshold according to claim 2, characterized in that: The fixing component (22) includes: a moving groove (221), a transverse connecting rod (227), a longitudinal connecting rod (228), a fixing ball (229), a placement frame (220), an electric hydraulic cylinder (226), a fixing plate (222), a docking plug (223), a slot (224) and a fixing groove (225). The fixing groove (225) is arranged at the rear end of the slot (224), and the slot (224) and the fixing groove (225) are opened inside one side of the first opening and closing door (212).

4. A movable threshold double-leaf blast door as claimed in claim 3, wherein: The front end of the fixing plate (222) is installed at the rear end of the docking plug (223), and the front end of the longitudinal connecting rod (228) is installed at the rear end of the fixing plate (222).

5. The double-leaf blast door with a movable threshold according to claim 3, characterized in that: The rear end of the longitudinal connecting rod (228) is installed at the front end of the transverse connecting rod (227), one end of the transverse connecting rod (227) is installed inside the fixing ball (229), and the rear end of the fixing ball (229) is installed at the output end of the electric hydraulic cylinder (226).

6. The double-leaf blast-proof airtight door with a movable threshold according to claim 3, characterized in that: The lower end of the electric hydraulic cylinder (226) is fixedly installed inside the placement frame (220), and the inner side of the placement frame (220) is fixedly installed on the side outer wall of the second opening and closing door (213).

7. A double-leaf protective airtight door with a movable threshold according to claim 3, characterized in that: The fixing plate (222) and the docking plug (223) are detachably installed inside the slot (224) and the fixing groove (225), and the moving groove (221) is opened at the front and rear ends of the second opening and closing door (213).

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