Steel heat insulation fireproof door

Abstract

The invention discloses a steel heat-insulation fireproof door in the field of fireproof doors, which comprises a mounting frame and a door frame connected to the side surface of the mounting frame, a rotating bracket connected to the side surface of the door frame, a rotating shaft rotatably connected to the rotating bracket, a transmission gear connected to the top of the rotating shaft, a connecting piece connected to the side surface of the rotating shaft, and a rotating door connected to the other end of the connecting piece, according to the device, the unlocking stability of the fireproof door in the high-temperature environment can be effectively improved, the influence of high temperature on the fireproof door can be avoided by adopting a sliding unlocking mode, meanwhile, the use of a lock head of a rotating structure is avoided, the safety of the fireproof door is improved, and the service life of the fireproof door is prolonged. Therefore, the risk of failure of the device is reduced.

Description

Technical Field

[0001] The invention relates to the technical field of fireproof doors, in particular to a steel heat-insulating fireproof door. Background Art

[0002] A fire door is a door that can meet the requirements of fire resistance stability, integrity and thermal insulation within a certain period of time. A fire door is a fire-resistant partition installed in fire compartments, evacuation stairwells, vertical shafts, etc. It has a certain fire resistance and can prevent the spread of fire and smoke. It can prevent the spread of fire within a certain period of time and ensure the evacuation of personnel.

[0003] The Chinese patent with the announcement number CN216950121U discloses a steel heat-insulating fireproof door, comprising a mounting door frame, a transparent layer and a steel reinforcement layer, wherein a fireproof door leaf is arranged at the front end of the mounting door frame, and a protection component is arranged at the middle of the front end of the fireproof door leaf, and the protection component comprises heat-insulating cotton, a door handle, a heat-insulating sleeve, a fixed connection belt and a connection piece, and the front end of the heat-insulating cotton is arranged at the door handle, the outer wall of the door handle is arranged with a heat-insulating sleeve, and the upper front end of the heat-insulating sleeve is connected with a fixed connection belt, and the lower front end of the heat-insulating sleeve is fixedly connected with a connection piece, and the transparent layer is arranged on one side of the fireproof door leaf close to the middle axis of the mounting door frame. The steel heat-insulating fireproof door is provided with the heat-insulating sleeve, so that when the fireproof door is in use, when the user puts the heat-insulating sleeve on the outer wall of the door handle, the heat-insulating sleeve can protect the user's hand, thereby preventing the user's hand from being scalded when the user touches the door handle.

[0004] However, the above-mentioned disclosed solution has the following shortcomings: the above-mentioned device uses an insulating sleeve to protect the insulating door. In actual use, the rotating lock used in the above-mentioned device is prone to expansion in a high temperature environment, which may cause the lock to get stuck, making it impossible to open the insulating door smoothly, causing difficulties for escape. Summary of the invention

[0005] The purpose of this section is to summarize some aspects of the embodiments of the present invention and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and the invention title of the present invention to avoid blurring the purpose of this section, the specification abstract and the invention title, and such simplifications or omissions cannot be used to limit the scope of the present invention.

[0006] The purpose of the present invention is to address the technical problems existing in the background technology. The present invention proposes a steel insulated fire door. The present invention can effectively improve the unlocking stability of the fire door in a high temperature environment through this device. The sliding unlocking method adopted in this device can avoid the influence of high temperature on the fire door, and at the same time avoids the use of a rotating structure lock, thereby reducing the risk of failure of the device.

[0007] The present invention proposes a steel heat-insulating fireproof door, comprising an installation frame and a door frame connected to its side, a rotating bracket connected to the side of the door frame, the rotating bracket is rotatably connected to a rotating shaft, a transmission gear is connected to the top of the rotating shaft, a connecting piece is connected to the side of the rotating shaft, and the other end of the connecting piece is connected to a rotating door, an unlocking component is connected to the side of the rotating door, and a sealing component is provided inside the rotating door.

[0008] By adopting the above technical solution, the present solution can improve the sealing and fireproofing performance of the device through the unlocking component and the sealing component.

[0009] Preferably, the unlocking component includes an unlocking bracket connected to the side of the rotating door, the unlocking bracket is slidably connected to an unlocking handle, an unlocking groove is provided at the top of the door frame, a locking piece is slidably connected to the inner wall of the unlocking groove, the locking piece is in contact with the top of the unlocking handle, and a locking groove is provided at the top of the rotating door, and the locking piece extends into the locking groove.

[0010] By adopting the above technical solution, the present solution can achieve the locking and unlocking control effect of the rotating door through the unlocking handle.

[0011] Preferably, the interior of the revolving door is hollow, and the sealing component includes a seal that is slidably connected to the inner wall of the revolving door, an expansion member is connected to the side of the seal, the expansion member is connected to the inner wall of the revolving door, and a plurality of springs are connected to the side of the expansion member away from the seal, and the other end of the spring is connected to the inner wall of the revolving door.

[0012] By adopting the above technical solution, the present solution can ensure the stability of the expansion member against the sealing member through the spring, and avoid the problem that the sealing member is stuck and the rotating door cannot be unlocked and rotated.

[0013] Preferably, a rotating shaft is provided at the top of the door frame, and the top of the rotating shaft is connected to the damping gear. A rotating damping member is provided at the top of the door frame, and the rotating damping member is in contact and extrusion with the side surface of the rotating shaft.

[0014] By adopting the above technical solution, this solution can improve the rotation stability of the revolving door through the damping gear, and facilitate the rotation control of the revolving door.

[0015] Preferably, the revolving doors are symmetrically arranged on both sides of the door frame, and the revolving doors are rotatably connected to the door frame via a connecting piece and a rotating shaft, and there is a gap between the two revolving doors.

[0016] By adopting the above technical solution, the present invention can facilitate the control of the device through the symmetrical rotating door, and the gap at the center can ensure that the rotating door can be rotated to open.

[0017] Preferably, an unlocking rod is provided on the top of the unlocking handle, and the locking member is in contact with the unlocking rod.

[0018] By adopting the above technical solution, the present solution can ensure that the unlocking rod is separated from the locking member after the rotating door is rotated through the structure of the unlocking rod, and the rotating door will not be stuck in rotation.

[0019] Preferably, a heat insulating layer is provided on the outer end surface of the sealing member, the two sealing members are in contact with each other, and the expansion member is slidably connected to the inner wall of the rotating door.

[0020] By adopting the above technical solution, this solution can improve the heat insulation effect of the seal through the heat insulation layer.

[0021] Preferably, the mounting frame is provided with a plurality of positioning holes.

[0022] By adopting the above technical solution, the present solution can improve the installation and fixing efficiency of the device through the structure of the positioning hole.

[0023] In summary, the present invention includes at least one of the following beneficial effects: The combined structure of a seal and an expansion member is used inside the rotating door of the device, which can fill the door gap between the rotating doors in the event of a fire or a high temperature environment, thereby isolating the risk of heat leakage. At the same time, the structure of the spring can make the seal shrink inward through the compression of the spring when the device needs to unlock the rotating fire door, so that the fire door can be opened smoothly, avoiding the fire door from being stuck due to high temperature. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for describing the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0025] Figure 1 It is a front view of an embodiment of a steel heat-insulating fireproof door of the present invention; Figure 2 A schematic diagram of the structure of a rotating door in an embodiment of the present invention; Figure 3 This is a schematic diagram of the structure of a sealing member in an embodiment of the present invention; Figure 4 It is a schematic diagram of the structure of the expansion member in the embodiment of the present invention; Figure numerals: 1. mounting frame; 2. rotating door; 3. door frame; 4. rotating bracket; 5. rotating shaft; 6. connecting piece; 7. transmission gear; 8. damping gear; 9. unlocking component; 901. unlocking bracket; 902. unlocking handle; 903. locking piece; 904. unlocking groove; 10. sealing component; 1001. sealing piece; 1002. expansion piece; 1003. spring. DETAILED DESCRIPTION

[0026] The following is combined with Figure 1-4 The present invention is described in further detail. Example

[0027] like Figure 1-Figure 4 As shown, in order to solve the existing problems, in this embodiment, the present invention discloses a steel heat-insulating fireproof door, including an installation frame 1 and a door frame 3 connected to its side, a rotating bracket 4 is connected to the side of the door frame 3, the rotating bracket 4 is rotatably connected to a rotating shaft 5, a transmission gear 7 is connected to the top of the rotating shaft 5, a connecting piece 6 is connected to the side of the rotating shaft 5, and the other end of the connecting piece 6 is connected to a rotating door 2, an unlocking component 9 is connected to the side of the rotating door 2, and a sealing component 10 is provided inside the rotating door 2.

[0028] The unlocking component 9 includes an unlocking bracket 901 connected to the side of the rotating door 2, the unlocking bracket 901 is slidably connected to an unlocking handle 902, an unlocking groove 904 is provided at the top of the door frame 3, a locking member 903 is slidably connected to the inner wall of the unlocking groove 904, the locking member is in contact with the top of the unlocking handle 902, a locking groove is provided at the top of the rotating door 2, and the locking member 903 extends into the locking groove.

[0029] The interior of the revolving door 2 is hollow, and the sealing component 10 includes a sealing member 1001 which is slidably connected to the inner wall of the revolving door 2. An expansion member 1002 is connected to the side of the sealing member 1001, and the expansion member 1002 is connected to the inner wall of the revolving door 2. A side of the expansion member 1002 away from the sealing member 1001 is connected to a plurality of springs 1003, and the other end of the spring 1003 is connected to the inner wall of the revolving door 2.

[0030] A rotating shaft is provided at the top of the door frame 3, and the top of the rotating shaft is connected to the damping gear 8. A rotating damping member is provided at the top of the door frame 3, and the rotating damping member contacts and squeezes the side surface of the rotating shaft.

[0031] The revolving doors 2 are symmetrically arranged on both sides of the door frame 3 . The revolving doors 2 are rotatably connected to the door frame 3 via a connecting piece 6 and a rotating shaft 5 . There is a gap between the two revolving doors 2 .

[0032] The specific working principle is: the device adopts a sliding unlocking method to vacate the side position of the revolving door 2, thereby improving the sealing of the revolving door 2. When the device is used, the revolving door 2 is locked by the locking member 903, and the locking member 903 can be unlocked by the unlocking handle 902.

[0033] When the device is in a high temperature environment, the expansion member 1002 expands due to the heat, so that the sealing member 1001 extends outward, thereby improving the sealing performance of the rotating door 2. Example

[0034] like Figure 1-Figure 4 As shown, in order to solve the existing problems in this embodiment, based on the same concept as the above-mentioned embodiment 1, the steel insulated fireproof door also includes: an unlocking rod is provided on the top of the unlocking handle 902, and the locking member 903 is in contact with the unlocking rod.

[0035] The outer end surface of the sealing member 1001 is provided with a heat insulation layer, the two sealing members 1001 are in contact with each other, and the expansion member 1002 is slidably connected to the inner wall of the rotating door 2.

[0036] The installation frame 1 is provided with a plurality of positioning holes.

[0037] The unlocking effect of the device is achieved by the contact between the unlocking rod and the locking member 903, ensuring that the rotating door 2 will not interfere with the locking member 903 during the rotation process while maintaining the stability of the unlocking process.

[0038] The above are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A steel heat-insulating fireproof door, comprising a mounting frame (1) and a door frame (3) connected to its side, characterized in that: A rotating bracket (4) is connected to the side of the door frame (3); the rotating bracket (4) is rotatably connected to a rotating shaft (5); a transmission gear (7) is connected to the top of the rotating shaft (5); a connecting piece (6) is connected to the side of the rotating shaft (5); the other end of the connecting piece (6) is connected to the rotating door (2); an unlocking component (9) is connected to the side of the rotating door (2); and a sealing component (10) is provided inside the rotating door (2).

2. A steel heat-insulating fire door according to claim 1, characterized in that: The unlocking component (9) comprises an unlocking bracket (901) connected to the side of the rotating door (2); the unlocking bracket (901) is slidably connected to an unlocking handle (902); an unlocking groove (904) is provided at the top of the door frame (3); a locking member (903) is slidably connected to the inner wall of the unlocking groove (904); the locking member contacts the top of the unlocking handle (902); a locking groove is provided at the top of the rotating door (2); and the locking member (903) extends into the locking groove.

3. A steel heat-insulating fire door according to claim 1, characterized in that: The interior of the revolving door (2) is hollow, and the sealing component (10) comprises a sealing member (1001) slidably connected to the inner wall of the revolving door (2), an expansion member (1002) is connected to the side of the sealing member (1001), the expansion member (1002) is connected to the inner wall of the revolving door (2), and a side of the expansion member (1002) away from the sealing member (1001) is connected to a plurality of springs (1003), and the other end of the spring (1003) is connected to the inner wall of the revolving door (2).

4. A steel heat-insulating fire door according to claim 1, characterized in that: A rotating shaft is provided at the top of the door frame (3), the top of the rotating shaft is connected to a damping gear (8), and a rotating damping member is provided at the top of the door frame (3), the rotating damping member is in contact and compression with the side surface of the rotating shaft.

5. The steel heat-insulating fire door according to claim 1, characterized in that: The revolving doors (2) are symmetrically arranged on both sides of the interior of the door frame (3); the revolving doors (2) are rotatably connected to the door frame (3) via a connecting piece (6) and a rotating shaft (5); and a gap exists between the two revolving doors (2).

6. A steel heat-insulating fire door according to claim 2, characterized in that: An unlocking rod is provided on the top of the unlocking handle (902), and the locking member (903) is in contact with the unlocking rod.

7. The steel heat-insulating fireproof door according to claim 3, characterized in that: The outer end surface of the sealing member (1001) is provided with a heat insulation layer, the two sealing members (1001) are in contact with each other, and the expansion member (1002) is slidably connected to the inner wall of the rotating door (2).

8. The steel heat-insulating fire door according to claim 1, characterized in that: The installation frame (1) is provided with a plurality of positioning holes.

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