Protective fireproof air-tight door

Abstract

The utility model belongs to the technical field of air-tight doors, and particularly relates to a protective fireproof air-tight door which comprises a door frame, an air-tight door body is hinged in the door frame, a handle is installed on the air-tight door body, a fixing mechanism is arranged in the air-tight door body, and two clamping holes are formed in one side wall of an inner cavity of the door frame. The fixing mechanism comprises a rectangular hole formed in the air-tight door body, a winding roller is rotationally connected into the rectangular hole, a pull rope is arranged on the outer wall of the winding roller in a winding mode, a rotating disc is installed at one end of the winding roller, a rectangular plate is slidably connected into the rectangular hole, and the pull rope is connected with the rectangular plate. Through the arrangement of the fixing mechanism, the air-tight door body can be limited in a closed state, so that the stability of the air-tight door body can be ensured, the fireproof effect and the protection performance are improved, and the use safety is ensured; through the silicate fireproof coating, the fire resistance of the material can be improved, and the flame spreading speed is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of closed doors, in particular to a protective fireproof closed door. Background Art

[0002] Civil defense doors are the doors at the entrance and exit of civil defense projects. They are clearly classified into ordinary single-leaf and double-leaf protective closed doors and closed doors. According to the opening direction of the civil defense door, it is divided into one-way protective closed doors and two-way protective closed doors;

[0003] At present, the closed door in the prior art usually does not have a limiting structure, and is prone to shaking under the action of external force, which makes the closed door unstable and the fire easily invades from the gap between the door and the door frame, thus easily causing safety hazards. Utility Model Content

[0004] 1. Technical issues to be solved

[0005] In view of the deficiencies in the prior art, the utility model provides a protective fireproof closed door, which solves the problems raised in the above background technology.

[0006] (2) Technical solution

[0007] In order to achieve the above-mentioned purpose, the utility model specifically adopts the following technical solutions:

[0008] A protective fireproof sealed door, comprising a door frame, a sealed door body hinged in the door frame, a handle mounted on the sealed door body, a fixing mechanism disposed in the sealed door body, and two clamping holes disposed on one side wall of the inner cavity of the door frame;

[0009] The fixing mechanism includes a rectangular hole opened in the closed door body, a winding roller is rotatably connected in the rectangular hole, a pull rope is wound around the outer wall of the winding roller, a turntable is installed at one end of the winding roller, a rectangular plate is slidably connected in the rectangular hole, the pull rope is connected to the rectangular plate, two limit blocks are installed on one side wall of the inner cavity of the rectangular hole, one end of the two limit blocks are respectively installed with springs, the two springs are both connected to the rectangular plate, two clamping strips are installed at one end of the rectangular plate, and the clamping strips are slidably connected to the closed door body.

[0010] Furthermore, the clamping strip slides in the clamping hole.

[0011] Furthermore, the limiting block is L-shaped.

[0012] Furthermore, the outer wall of the closed door body is evenly sprayed with silicate fire retardant coating.

[0013] (III) Beneficial effects

[0014] Compared with the prior art, the utility model provides a protective fireproof closed door, which has the following beneficial effects:

[0015] The utility model can limit the position of the closed door body in the closed state through the setting of the fixing mechanism, so as to ensure its stability, thereby improving the fire prevention effect and protection performance and ensuring the safety of use; through the silicate fire retardant coating, the fire resistance of the material can be improved and the speed of flame spread can be slowed down. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a structural schematic diagram of the clamping hole of the utility model;

[0018] Figure 3 It is a structural cross-sectional view of the enclosed door body of the utility model;

[0019] Figure 4 It is a structural schematic diagram of the fixing mechanism of the utility model.

[0020] In the figure: 1. door frame; 2. closed door body; 3. handle; 4. fixing mechanism; 40. limit block; 41. rectangular hole; 42. winding roller; 43. pull rope; 44. turntable; 45. rectangular plate; 46. clamping strip; 47. spring; 5. clamping hole. DETAILED DESCRIPTION

[0021] 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.

[0022] Example

[0023] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, a fireproof protective closed door proposed in one embodiment of the utility model comprises a door frame 1, a closed door body 2 is hinged in the door frame 1, a handle 3 is installed on the closed door body 2, a fixing mechanism 4 is arranged in the closed door body 2, and two clamping holes 5 are arranged on one side wall of the inner cavity of the door frame 1; by setting the fixing mechanism 4, the closed door body 2 can be limited in position in the closed state, so as to ensure its stability, thereby improving the fire prevention effect and protection performance, and ensuring the safety of use;

[0024] The fixing mechanism 4 includes a rectangular hole 41 opened in the closed door body 2, a winding roller 42 is rotatably connected in the rectangular hole 41, a pull rope 43 is wound around the outer wall of the winding roller 42, a turntable 44 is installed at one end of the winding roller 42, a rectangular plate 45 is slidably connected in the rectangular hole 41, the pull rope 43 is connected to the rectangular plate 45, two limit blocks 40 are installed on one side wall of the inner cavity of the rectangular hole 41, one end of the two limit blocks 40 are installed with springs 47, and the two springs 47 are connected to the rectangular hole 41. The plates 45 are connected, and two clamping strips 46 are installed at one end of the rectangular plate 45, and the clamping strip 46 is slidably connected to the closed door body 2; after closing the closed door body 2, the spring 47 is reset to drive the winding roller 42 to rotate, drive the pull rope 43 to lengthen, drive the rectangular plate 45 to slide in the rectangular hole 41, and then drive the clamping strip 46 to slide in the closed door body 2, and the clamping strip 46 slides into the clamping hole 5. At this time, the limiting work of the closed door body 2 is completed to ensure stability and sealing.

[0025] like Figure 3 As shown, in some embodiments, the clamping strip 46 slides in the clamping hole 5 to facilitate fixation.

[0026] like Figure 3 As shown, in some embodiments, the limiting block 40 is L-shaped; the structure is simple.

[0027] like Figure 1 As shown, in some embodiments, the outer wall of the closed door body 2 is evenly sprayed with silicate fire retardant coating; silicate fire retardant coating is a fire retardant coating with high fire resistance, stable effect after long-term use, and simple construction. The coating can be used for the painting of steel fire doors. Fire retardant coating is to improve the fire resistance of the material, slow down the spread of flames, or prevent combustion within a certain period of time by brushing the coating on the surface of the material. This type of coating is called fire retardant coating, or flame retardant coating.

[0028] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A fireproof and sealed door, comprising a door frame (1), characterized in that: A closed door body (2) is hingedly connected inside the door frame (1), a handle (3) is installed on the closed door body (2), a fixing mechanism (4) is arranged inside the closed door body (2), and two clamping holes (5) are arranged on one side wall of the inner cavity of the door frame (1); The fixing mechanism (4) comprises a rectangular hole (41) opened in the closed door body (2), a winding roller (42) is rotatably connected in the rectangular hole (41), a pull rope (43) is wound around the outer wall of the winding roller (42), a turntable (44) is installed at one end of the winding roller (42), a rectangular plate (45) is slidably connected in the rectangular hole (41), the pull rope (43) is connected to the rectangular plate (45), two limit blocks (40) are installed on one side wall of the inner cavity of the rectangular hole (41), one end of the two limit blocks (40) are installed with springs (47), the two springs (47) are connected to the rectangular plate (45), one end of the rectangular plate (45) is installed with two clamping strips (46), and the clamping strips (46) are slidably connected to the closed door body (2).

2. A protective fireproof closed door according to claim 1, characterized in that: The clamping strip (46) slides in the clamping hole (5).

3. A protective fireproof closed door according to claim 1, characterized in that: The limiting block (40) is L-shaped.

4. A protective fireproof closed door according to claim 1, characterized in that: The outer wall of the closed door body (2) is evenly sprayed with silicate fire retardant paint.

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