Fireproof and radiation-proof vertical hinged door
By using U-shaped steel welded door panel frame, perlite insulation board and fireproof board in the radiation door, combined with fire expansion seal strips and hinge system, the existing radiation doors are difficult to meet Class A fire protection requirements, and good fire protection and radiation protection performance is achieved.
Patent Information
- Application Number
- CN202422549071.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-22
- Publication Date
- 2025-08-19
- Estimated Expiration
- 2034-10-22
AI Technical Summary
Existing radiation-proof doors are difficult to meet the Class A requirements for fire protection and radiation protection at the same time, especially the lead plate as fire-proof material does not comply with the GB12955-2008 standard.
The door panel frame is welded with U-shaped steel, filled with perlite insulation board, one side is pasted with polymer radiation-proof board and the other side is pasted with fire-proof board, and the surroundings are covered with U-shaped stainless steel, and a fire-proof expansion seal is set between the door leaf and the door frame, combining the fire-proof world hinge and door closer to ensure the automatic closing of the door.
It achieves good fire-proof and radiation-proof performance, prevents rapid temperature transmission and prevents flue gas leakage, and meets Class A fire protection requirements.
Smart Images

Figure CN223241337U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field, and in particular relates to a fireproof and radiationproof swing door. Background Art
[0002] With the extensive use of radiation-proof doors in the field of radiation protection in hospitals, some users have put forward higher requirements for radiation-proof doors, requiring them to have fire-proof functions, and some units even propose that radiation-proof doors should meet Class A fire protection requirements.
[0003] In the past, radiation-proof doors typically used a layer of lead sheet of appropriate thickness inside the door frame and leaf to achieve radiation protection. Obviously, due to the low melting point of lead sheet, using it as a fire door material would not meet the material requirements of the GB12955-2008 "Fire Door" standard. Utility Model Content
[0004] In order to solve the above problems existing in the prior art, the purpose of the present invention is to provide a fireproof and radiationproof swing door.
[0005] The technical solution adopted by this utility model is:
[0006] A fireproof and radiationproof swing door, comprising
[0007] The door frame is provided with anti-radiation strips on one side and barium sulfate mortar on the surrounding side;
[0008] The door leaf is located in the door frame and includes an insulation board, a radiation protection board, a fire protection board and a panel;
[0009] Fireproof top and bottom hinges, located on one side of the door leaf, connected to the door frame and the door leaf respectively;
[0010] a fireproof door closer, mounted on the door frame and the door leaf, for controlling the door leaf to automatically close relative to the door frame;
[0011] A fireproof door lock is installed on the door leaf.
[0012] As a preferred embodiment of the present invention, the door frame includes a left door frame, a right door frame, an upper door frame and a lower door frame, and the fireproof top and bottom hinge is located on a side of the door leaf close to the left door frame.
[0013] As a preferred embodiment of the present invention, the door leaf includes a steel section and an edging plate, the steel section is filled with the insulation board, the two sides of the insulation board are respectively provided with the anti-radiation board and the fire prevention board, and the sides of the anti-radiation board and the fire prevention board away from each other are respectively provided with the panels.
[0014] As a preferred embodiment of the present invention, the fireproof top and bottom hinge includes a hinge sleeve, a steel ball, a hinge shaft, a hinge blade, a set screw and a locking nut. The hinge sleeve is welded to the door frame, the hinge blade is welded to the door leaf, and the hinge sleeve and the hinge blade are connected through the hinge shaft; the fireproof top and bottom hinge enables the door leaf to rotate relative to the door frame.
[0015] As a preferred embodiment of the present invention, a steel ball is provided between the hinge shaft and the hinge sleeve.
[0016] As a preferred embodiment of the present invention, the set screw and the locking nut are used to adjust the fitting clearance between the door leaf and the door frame.
[0017] As a preferred embodiment of the present invention, the fireproof door closer includes a pull rod seat, a door closer head, a rocker arm and a pull rod, the door closer head is installed on the door leaf, the pull rod seat is installed on the upper door frame, the rocker arm and the pull rod are respectively connected to the door closer head and the pull rod seat, and the rocker arm and the pull rod are hinged.
[0018] As a preferred embodiment of the present invention, the fireproof top and bottom hinges and the fireproof door lock are respectively located on both sides of the door leaf.
[0019] As a preferred embodiment of the present invention, there are two fireproof top and bottom hinges, and the two fireproof top and bottom hinges are respectively located at two ends of the same side of the door leaf.
[0020] The beneficial effects of the present invention are as follows: as a fireproof and radiationproof swing door, the present invention utilizes U-shaped steel to weld a door panel frame, the door panel frame is filled with perlite insulation board, one side is pasted with a polymer radiation-proof board, the other side is pasted with a fire-proof board, stainless steel panels are pasted on both the front and back surfaces, and the four sides are surrounded by U-shaped stainless steel to form a fireproof and radiation-proof door leaf with good radiation-proof performance; a fire-proof expansion sealing strip is arranged between the door leaf and the door frame, which can prevent the temperature from being transferred to the outside quickly while preventing smoke from leaking out, thereby ensuring the fire-proof performance of the door. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.
[0022] Figure 1 It is a schematic diagram of the structure of the utility model in front view, left side view, right side view and top view;
[0023] Figure 2 This utility model Figure 1 Schematic diagram of the structure at A;
[0024] Figure 3 This utility model Figure 1 Schematic diagram of the structure at B;
[0025] Figure 4 This utility model Figure 1 Schematic diagram of the structure at C;
[0026] Figure 5 This utility model Figure 1 Schematic diagram of the structure at D. DETAILED DESCRIPTION
[0027] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for the purpose of explaining the present invention and are not intended to limit the present invention. That is, the embodiments described herein are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and illustrated in the drawings herein can be arranged and designed in a variety of different configurations.
[0028] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative work are within the scope of protection of the present invention.
[0029] The following combination Figure 1-5 The specific embodiment of the present invention is described as follows: a fireproof and radiationproof swing door comprises a door frame 1, one side of which is provided with a radiation-proof strip 15, and the surrounding side thereof is provided with a barium sulfate mortar 16;
[0030] The door leaf 2 is located in the door frame 1 and includes an insulation board 22, an anti-radiation board 23, a fireproof board 24 and a panel 25; the anti-radiation board 23 can be an inorganic anti-radiation board or an organic anti-radiation board, and the fire resistance grade can be B1 or A2, with a lead equivalent of 1-10mmPb. The insulation board 22 can be a perlite board, a rock wool board or other insulation board. The panel 25 can be directly affixed with a fire-resistant PVC film or a fire-resistant paint on the anti-radiation board, or can be coated with powder or paint on the surface of a stainless steel plate, a color steel plate, a VCM plate or a galvanized plate.
[0031] The fireproof top and bottom hinge 3 is located on one side of the door leaf 2 and is connected to the door frame 1 and the door leaf 2 respectively;
[0032] a fireproof door closer 4, mounted on the door frame 1 and the door leaf 2, for controlling the automatic closing of the door leaf 2 relative to the door frame 1;
[0033] The fireproof door lock 5 is installed on the door leaf 2.
[0034] Advantageously, the door frame 1 includes a left door frame 11 , a right door frame 12 , an upper door frame 13 and a lower door frame 14 , and the fireproof top and bottom hinge 3 is located on a side of the door leaf 2 close to the left door frame 11 .
[0035] Advantageously, the door leaf 2 comprises a steel section 21 and an edge panel 26. The insulation board 22 is filled within the steel section 21. The radiation shield 23 and the fireproof board 24 are positioned on either side of the insulation board 22. The panels 25 are positioned on the sides of the radiation shield 23 and the fireproof board 24 facing away from each other. A door section is first welded from the steel section 21, preferably a U-shaped steel section, and filled with perlite insulation board 22. Then, the polymer radiation shield 23 and the fireproof board 24 are attached to one side, and the stainless steel panels 25 are attached to both the front and back surfaces. The sides are surrounded by a U-shaped stainless steel edge panel, i.e., the edge panel 26.
[0036] Advantageously, the fireproof floor hinge 3 includes a hinge sleeve 31, a steel ball 32, a hinge shaft 33, a hinge blade 34, a set screw 35 and a locking nut 36. The hinge sleeve 31 is welded to the door frame 1, the hinge blade 34 is welded to the door leaf 2, and the hinge sleeve 31 and the hinge blade 34 are connected by the hinge shaft 33. The fireproof floor hinge 3 enables the door leaf 2 to rotate relative to the door frame 1.
[0037] Advantageously, a steel ball 32 is provided between the hinge shaft 33 and the hinge sleeve 31 .
[0038] Advantageously, the set screw 35 and the lock nut 36 are used to adjust the clearance between the door leaf 2 and the door frame 1. When the clearance between the door leaf 2 and the door frame 1 is adjusted appropriately, the set screw 35 and the lock nut 36 are screwed on.
[0039] Advantageously, the fireproof door closer 4 includes a pull rod seat 41, a door closer head 42, a rocker arm 43 and a pull rod 44, the door closer head 42 is mounted on the door leaf 2, the pull rod seat 41 is mounted on the upper door frame 13, the rocker arm 43 and the pull rod 44 are respectively connected to the door closer head 42 and the pull rod seat 41, and the rocker arm 43 and the pull rod 44 are hinged.
[0040] Advantageously, the fireproof top and bottom hinges 3 and the fireproof door lock 5 are respectively located on both sides of the door leaf 2 .
[0041] Advantageously, there are two fireproof top and bottom hinges 3 , which are respectively located at the upper and lower ends of the same side of the door leaf 2 .
[0042] Working principle of this utility model:
[0043] Under the action of the fire door closer 4, the door leaf 2 always tends to close relative to the door frame 1. In the absence of external force, the door leaf 2 remains closed.
[0044] In this state, in order to ensure that the gap between the door leaf 2 and the door frame 1 does not leak radiation after the door is closed, two measures are taken. First, anti-radiation strips 15 are affixed around the door leaf 2. The anti-radiation strips 15 are made of the same material as the anti-radiation plate 23. Second, after the door frame 1 is installed on site, barium sulfate mortar 16 is poured into the door frame 1. In addition, the fire-proof expansion sealing strip 17 between the door leaf 2 and the door frame 1 will expand when exposed to high temperature, and the gap will be completely blocked physically. The purpose of blocking is twofold. One is to prevent the temperature from being transferred out quickly, and the other is to prevent smoke from leaking out.
[0045] When opening the door, force is applied to the handle on the fire door lock 5. After the lock is opened, the door leaf 2 can be opened relative to the door frame 1 by overcoming the work done by the fire door closer 4.
[0046] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.
[0047] The above content is merely an example and explanation of the structure of the present utility model. Technicians in this technical field may make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the structure of the utility model or exceed the scope defined by the claims of the present utility model, they should all fall within the scope of protection of the present utility model.
Claims
1. A fireproof and radiationproof swing door, characterized by: include The door frame is provided with anti-radiation strips on one side and barium sulfate mortar on the surrounding side; The door leaf is located in the door frame and includes an insulation board, a radiation protection board, a fire protection board and a panel; Fireproof top and bottom hinges, located on one side of the door leaf, connected to the door frame and the door leaf respectively; a fireproof door closer, mounted on the door frame and the door leaf, for controlling the door leaf to automatically close relative to the door frame; A fireproof door lock is installed on the door leaf.
2. The fireproof and radiationproof swing door according to claim 1, characterized in that: The door frame comprises a left door frame, a right door frame, an upper door frame and a lower door frame, and the fireproof top and bottom hinge is located on a side of the door leaf close to the left door frame.
3. The fireproof and radiation-proof swing door according to claim 1, characterized in that: The door leaf includes a steel section and an edge plate, the steel section is filled with the insulation board, the radiation protection board and the fire protection board are respectively provided on both sides of the insulation board, and the panels are respectively provided on the sides of the radiation protection board and the fire protection board away from each other.
4. The fireproof and radiationproof swing door according to claim 1, characterized in that: The fireproof top and bottom hinge includes a hinge sleeve, a steel ball, a hinge shaft, a hinge blade, a set screw and a locking nut. The hinge sleeve is welded to the door frame, the hinge blade is welded to the door leaf, and the hinge sleeve and the hinge blade are connected through the hinge shaft; the fireproof top and bottom hinge enables the door leaf to rotate relative to the door frame.
5. The fireproof and radiation-proof swing door according to claim 4, characterized in that: A steel ball is provided between the hinge shaft and the hinge sleeve.
6. The fireproof and radiation-proof swing door according to claim 5, characterized in that: The set screw and the lock nut are used to adjust the fitting clearance between the door leaf and the door frame.
7. The fireproof and radiation-proof swing door according to claim 2, characterized in that: The fireproof door closer includes a pull rod seat, a door closer head, a rocker arm and a pull rod, the door closer head is installed on the door leaf, the pull rod seat is installed on the upper door frame, the rocker arm and the pull rod are respectively connected to the door closer head and the pull rod seat, and the rocker arm and the pull rod are hinged.
8. The fireproof and radiationproof swing door according to claim 1, characterized in that: The fireproof top and bottom hinges and the fireproof door lock are respectively located on both sides of the door leaf.
9. The fireproof and radiationproof swing door according to claim 1, characterized in that: There are two fireproof top and bottom hinges, which are respectively located at the two ends of the same side of the door leaf.