High-strength emergency fireproof door

Abstract

The utility model relates to the technical field of fireproof doors, and discloses a high-strength emergency fireproof door which comprises a rectangular door frame, a side door plate is fixedly connected to the inner side of the door frame, and a movable door capable of being automatically closed is hinged to the side edge, corresponding to the side door plate, of the inner side of the door frame. According to the escape door, when a fire disaster occurs and escape needs to be carried out, a user pulls down the handle, the handle drives the clamping column to be separated from the interior of the limiting cavity and pushes the movable door, the movable door begins to swing, the clamping column swings along the track of the restraining cavity through the movable door till the door is pushed open, and after the user penetrates through the door, the user can escape from the limiting cavity. The door closer pushes the movable door to move backwards, the movable door drives the clamping column to move in the restraining cavity, when the clamping column moves to the position of the limiting cavity, the first spring pushes the clamping column to move upwards to enter the limiting cavity to form the door locking state, the situation that the door is not closed is avoided, and the fireproof effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of fire doors, in particular to a high-strength emergency fire door. Background Art

[0002] Fire doors refer to doors that can meet the requirements of fire resistance stability and integrity within a certain period of time. In addition to the functions of ordinary doors, fire doors can also prevent the spread of fire. They can prevent the spread of fire within a certain period of time and ensure the evacuation of personnel. At present, many fire doors on the market need to be controlled by other devices when encountering fire. The door closer pushes the door to close. When the door lock fits with the door frame, it will encounter some resistance, resulting in the door not closing, affecting the fire prevention effect. For this reason, we propose a high-strength emergency fire door. Utility Model Content

[0003] The utility model mainly solves the technical problems existing in the above-mentioned prior art and provides a high-strength emergency fireproof door.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a high-strength emergency fire door, comprising a door frame, which is a rectangular frame, a side door panel is fixedly connected to the inner side of the door frame, a movable door that can be automatically closed is hinged on the side of the inner side of the door frame corresponding to the side door panel, a first connecting plate is fixedly connected to the side of the side door panel corresponding to the movable door, a second connecting plate is fixedly connected to the side of the movable door corresponding to the side door panel, an adapter block is fixedly connected to the rear side of the door frame corresponding to the position of the movable door, a limiting structure for constraining the movement of the movable door is arranged on the adapter block, a first installation cavity is opened on the side of the first connecting plate corresponding to the second connecting plate, a movable sealing structure is arranged inside the first installation cavity, a fixed door closer is arranged on the rear side of the door frame, and the door frame is movably connected to the movable door through the door closer.

[0005] Preferably, the limiting structure includes a constraint cavity opened on the bottom side of the adapter block, the constraint cavity extends to the interior of the door frame, a limiting cavity is opened inside the constraint cavity corresponding to the wall surface of the door frame, a movable cavity is opened on the upper side of the movable door corresponding to the position of the limiting cavity, a first spring is fixedly connected to the bottom side of the interior of the movable cavity, a clamping column is fixedly connected to the upper end of the first spring, the clamping column is movably installed inside the movable cavity, a guide cavity is opened on the front side of the movable door, a handle is fixedly connected to the side of the clamping column corresponding to the position of the guide cavity, and the handle is an "L"-shaped block.

[0006] Preferably, an adapter block is fixedly connected to the rear side of the door frame corresponding to the position of the movable door, and the adapter block is provided with a limiting structure for constraining the movement of the movable door. A first installation cavity is opened on one side of the first connecting plate corresponding to the second connecting plate, and a movable sealing structure is provided inside the first installation cavity.

[0007] Preferably, a snap-fit ​​cavity is provided inside the sliding block, and the cross-section of the snap-fit ​​cavity is a hollow cavity with a "cross" shape. A snap-fit ​​block is snap-fitted inside the snap-fit ​​cavity, and the cross-section of the snap-fit ​​block is adapted to the cross-section of the snap-fit ​​cavity. One side of the snap-fit ​​block is fixedly connected to the side of the sealing strip.

[0008] Preferably, the sealing structure includes a sliding block movably installed inside the first installation cavity, a second spring is fixedly connected to the side of the sliding block away from the second connecting plate, an end of the second spring away from the sliding block is fixedly connected to the inner side of the first installation cavity, and a removable sealing strip is provided on the side of the sliding block away from the second spring.

[0009] Preferably, the center position of the adapter block is the same as the rotation center position of the movable door, and the diameter of the clamping column is matched with the diameter of the limiting cavity.

[0010] Preferably, the side door plate and the movable door have the same thickness, the thickness of the first connecting plate is half of the side door plate, and the thickness of the second connecting plate is half of the movable door.

[0011] Preferably, a second installation cavity is opened at the center position of the side of the movable door, and a glass is fixedly installed at the inner center position of the second installation cavity.

[0012] Beneficial Effects

[0013] The utility model provides a high-strength emergency fire door. It has the following beneficial effects:

[0014] (1) When escaping from a fire, the user pulls down the handle, which drives the clamping column to separate from the inside of the limiting cavity, pushes the movable door, and the movable door starts to swing. The movable door causes the clamping column to swing along the trajectory of the restraining cavity until the door is pushed open. After the user passes through the door, the door closer pushes the movable door to move back, and the movable door drives the clamping column to move inside the restraining cavity. When the clamping column moves to the position of the limiting cavity, the first spring pushes the clamping column upward to enter the inside of the limiting cavity to form a locked door state, thereby avoiding the situation where the door is not closed and improving the fire prevention effect.

[0015] (2) When the high-strength emergency fire door is automatically closed, the sealing strip is squeezed by the second connecting plate, one side of the sealing strip is fitted with the first connecting plate, and the sliding block is squeezed by the second spring. The sliding block pushes the sealing strip to be in squeeze contact with the side of the second connecting plate, so that both sides of the sealing strip are subjected to squeezing force, thereby improving the sealing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the implementation or the prior art description. Obviously, the drawings described below are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0017] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with the technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantial technical significance. Any structural modification, change in proportion or adjustment of size shall still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0019] Figure 2 It is a partial structural schematic diagram of the adapter block of the utility model;

[0020] Figure 3 It is a partial structural schematic diagram of the second connecting plate of the utility model;

[0021] Figure 4 For this utility model Figure 3 The enlarged structural diagram at A in the middle;

[0022] Figure 5 It is a partial structural schematic diagram of the movable door of the utility model;

[0023] Figure 6 For this utility model Figure 5 Enlarged structural diagram at B in the middle.

[0024] Legend:

[0025] 1. Door frame; 2. Side door panel; 3. Movable door; 4. First connecting plate; 5. Second connecting plate; 6. Adapter block; 7. Constraint cavity; 8. Limit cavity; 9. Movable cavity; 10. Snap-in column; 11. First spring; 12. Guide cavity; 13. Handle; 14. First installation cavity; 15. Second spring; 16. Sliding block; 17. Sealing strip; 18. Snap-in cavity; 19. Snap-in block; 20. Second installation cavity; 21. Glass; 22. Door closer. DETAILED DESCRIPTION

[0026] 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.

[0027] like Figure 1-Figure 6 As shown, a high-strength emergency fire door comprises a door frame 1, the door frame 1 is a rectangular frame, a side door panel 2 is fixedly connected to the inner side of the door frame 1, a movable door 3 is hingedly connected to the side of the inner side of the door frame 1 corresponding to the side of the side door panel 2, the side door panel 2 and the movable door 3 have the same thickness, a second installation cavity 20 is opened at the center position of the side of the movable door 3, a glass 21 is fixedly installed at the inner center position of the second installation cavity 20, a first connecting plate 4 is fixedly connected to the side of the side door panel 2 corresponding to the movable door 3, the thickness of the first connecting plate 4 is half of the side door panel 2, and the movable door 3 is fixedly connected to the side of the side door panel 2 There is a second connecting plate 5, the thickness of the second connecting plate 5 is half of the movable door 3, a fixed door closer 22 is arranged on the rear side of the door frame 1, the door frame 1 is movably connected to the movable door 3 through the door closer 22, an adapter block 6 is fixedly connected to the position of the movable door 3 on the rear side of the door frame 1, the center position of the adapter block 6 is the same as the rotation center position of the movable door 3, a limiting structure for constraining the movement of the movable door 3 is arranged on the adapter block 6, a first installation cavity 14 is opened on the side of the first connecting plate 4 corresponding to the second connecting plate 5, and a movable sealing structure is arranged inside the first installation cavity 14.

[0028] The limiting structure includes a constraint cavity 7 opened on the bottom side of the adapter block 6, the constraint cavity 7 extends to the interior of the door frame 1, and a limiting cavity 8 is opened inside the constraint cavity 7 corresponding to the wall surface of the door frame 1, and a movable cavity 9 is opened on the upper side of the movable door 3 corresponding to the position of the limiting cavity 8, and a first spring 11 is fixedly connected to the bottom side of the interior of the movable cavity 9, and a clamping column 10 is fixedly connected to the upper end of the first spring 11, and the diameter of the clamping column 10 is matched with the diameter of the limiting cavity 8. The clamping column 10 is movably installed in the interior of the movable cavity 9, and a guide cavity 12 is opened on the front side of the movable door 3, and a handle 13 is fixedly connected to the side of the clamping column 10 corresponding to the position of the guide cavity 12, and the handle 13 is an "L"-shaped block.

[0029] The sealing structure includes a sliding block 16 movably installed inside the first installation cavity 14, a side of the sliding block 16 away from the second connecting plate 5 is fixedly connected to the second spring 15, one end of the second spring 15 away from the sliding block 16 is fixedly connected to the inner side of the first installation cavity 14, a side of the sliding block 16 away from the second spring 15 is provided with a detachable sealing strip 17, a snap-in cavity 18 is provided inside the sliding block 16, the cross-section of the snap-in cavity 18 is a hollow cavity in the shape of a "cross", a snap-in block 19 is snap-into the inside of the snap-in cavity 18, the cross-section of the snap-in block 19 is adapted to the cross-section of the snap-in cavity 18, and one side of the snap-in block 19 is fixedly connected to the side of the sealing strip 17.

[0030] The working principle of this utility model:

[0031] When in use, when encountering a fire and needing to escape, the user first pulls down the handle 13, the handle 13 drives the clamping column 10 to move downward, the clamping column 10 first separates from the inside of the limiting cavity 8, and then pushes open the movable door 3, the movable door 3 starts to swing, the movable door 3 drives the clamping column 10 to swing, the clamping column 10 swings along the trajectory of the restraining cavity 7 until the door is pushed open, after the user passes through the door, the door closer 22 pushes the movable door 3 to move back, the movable door 3 drives the clamping column 10 to move inside the restraining cavity 7, when the clamping column 10 moves to the position of the limiting cavity 8, the first spring 11 pushes the clamping column 10 to The movable door 3 moves upward into the limiting cavity 8 to form a locked door state. When the movable door 3 swings back after opening the door, the movable door 3 drives the second connecting plate 5 to move. The second connecting plate 5 squeezes the sealing strip 17. The sealing strip 17 squeezes the sliding block 16 to make the sliding block 16 move inside the first installation cavity 14. When the sliding block 16 moves inside the first installation cavity 14, it is squeezed by the second spring 15. When the second connecting plate 5 pushes the sealing strip 17 to fit the side of the first connecting plate 4, the sealing strip 17 is squeezed by the second spring 15 to make the side of the sealing strip 17 in contact with the second connecting plate 5 fit more closely.

[0032] The above shows and describes the basic principle and main features of the utility model and the 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 for explaining the principle of 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 claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A high-strength emergency fire door, comprising a door frame (1), the door frame (1) being a rectangular frame, a side door panel (2) being fixedly connected to the inner side of the door frame (1), a movable door (3) which can be automatically closed being hingedly connected to the inner side of the door frame (1) corresponding to the side edge of the side door panel (2), a first connecting plate (4) being fixedly connected to the side of the side door panel (2) corresponding to the movable door (3), and a second connecting plate (5) being fixedly connected to the side of the movable door (3) corresponding to the side door panel (2), characterized in that: An adapter block (6) is fixedly connected to the rear side of the door frame (1) at a position corresponding to the movable door (3); a limiting structure for restricting the movement of the movable door (3) is arranged on the adapter block (6); a first installation cavity (14) is opened on one side of the first connecting plate (4) corresponding to the second connecting plate (5); a movable sealing structure is arranged inside the first installation cavity (14); a fixed door closer (22) is arranged on the rear side of the door frame (1); and the door frame (1) is movably connected to the movable door (3) via the door closer (22).

2. A high-strength emergency fire door according to claim 1, characterized in that: The limiting structure comprises a restraining cavity (7) provided on the bottom side of the adapter block (6), the restraining cavity (7) extending to the interior of the door frame (1), a limiting cavity (8) provided inside the restraining cavity (7) corresponding to the wall surface of the door frame (1), a movable cavity (9) provided on the upper side of the movable door (3) corresponding to the position of the limiting cavity (8), a first spring (11) fixedly connected to the bottom side of the movable cavity (9), a clamping column (10) fixedly connected to the upper end of the first spring (11), the clamping column (10) movably installed inside the movable cavity (9), a guiding cavity (12) provided on the front side of the movable door (3), a handle (13) fixedly connected to the side of the clamping column (10) corresponding to the position of the guiding cavity (12), the handle (13) being an "L"-shaped block.

3. A high-strength emergency fire door according to claim 2, characterized in that: The sealing structure comprises a sliding block (16) movably mounted inside the first mounting cavity (14); a second spring (15) is fixedly connected to a side of the sliding block (16) away from the second connecting plate (5); an end of the second spring (15) away from the sliding block (16) is fixedly connected to the inner side of the first mounting cavity (14); and a detachable sealing strip (17) is provided on a side of the sliding block (16) away from the second spring (15).

4. A high-strength emergency fire door according to claim 3, characterized in that: The sliding block (16) is provided with a clamping cavity (18) inside, the cross section of the clamping cavity (18) being a hollow cavity in the shape of a cross, a clamping block (19) is clamped inside the clamping cavity (18), the cross section of the clamping block (19) is adapted to the cross section of the clamping cavity (18), and one side of the clamping block (19) is fixedly connected to the side surface of the sealing strip (17).

5. A high-strength emergency fire door according to claim 2, characterized in that: The center position of the adapter block (6) is the same as the rotation center position of the movable door (3), and the diameter of the clamping column (10) is matched with the diameter of the limiting cavity (8).

6. A high-strength emergency fire door according to claim 1, characterized in that: The side door plate (2) and the movable door (3) have the same thickness, the first connecting plate (4) has a thickness half that of the side door plate (2), and the second connecting plate (5) has a thickness half that of the movable door (3).

7. The high-strength emergency fire door according to claim 1, characterized in that: A second installation cavity (20) is provided at the center of the side of the movable door (3), and a glass (21) is fixedly installed at the center of the interior of the second installation cavity (20).

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