Steel stoving varnish fireproof door
By using a combination structure such as a rotary handle and worm in steel painted fire doors, the connection strength between the door and the door frame is enhanced, and the locking mechanism between the worm and worm gear is used to solve the problem of door clearance under flame impact, achieving higher sealing and impact resistance.
Patent Information
- Application Number
- CN202420886558.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-26
- Publication Date
- 2025-03-21
- Estimated Expiration
- 2034-04-26
AI Technical Summary
Existing steel painted fire-proof doors are prone to deformation of the hinge and door lock under the impact of flames, resulting in a gap between the door and the door frame, which in turn allows the fire smoke to pass through the gap and enter the other side.
The combined structure of the rotating handle, rotating shaft, worm, worm gear, connecting shaft, stud, threaded block, limit plate, limit frame and guide frame is adopted to enhance the connection strength between the door and the door frame, and to prevent the door from shaking when impacted through the locking mechanism between the worm and worm gear.
It effectively avoids deformation of the hinge and the door lock under the impact of flame, prevents gaps between the door and the door frame, and enhances the sealing and impact resistance of the fire door.
Smart Images
Figure CN222649734U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of steel paint-coated fireproof doors, in particular to a steel paint-coated fireproof door. Background Art
[0002] A steel fire door refers to a door with a door frame, door leaf skeleton and door leaf panel made of steel materials. If the door leaf is filled with material, it is filled with fireproof and heat-insulating materials that are non-toxic and harmless to the human body, and is equipped with fireproof hardware accessories to form a door with certain specified fire resistance. In order to make the steel fire door more beautiful and facilitate the protection of the surface of the steel fire door, the surface of the steel fire door is usually painted.
[0003] In the prior art, the steel painted fire door is connected to the door frame through hinges and door locks. When the steel painted fire door is subjected to the impact of flames, the hinges and the door locks are easily deformed, resulting in a gap between the steel painted fire door and the door frame. As a result, the thick smoke generated by the fire can easily pass through the gap into the other side of the steel painted fire door. Therefore, a steel painted fire door is proposed. Utility Model Content
[0004] In view of the deficiencies in the prior art, the utility model provides a steel painted fireproof door, which is used to solve the problems raised in the above background technology.
[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0006] A steel painted fireproof door comprises a door frame body, wherein the steel painted fireproof door body is hingedly arranged inside the door frame body, a protective shell is fixedly arranged on the front side of the steel painted fireproof door body, a turning handle is rotatably arranged inside the protective shell, a rotating shaft is fixedly arranged on the surface of the turning handle, a worm is fixedly arranged on the left end of the turning handle, a worm wheel is meshed on the surface of the worm, a connecting shaft is fixedly arranged inside the worm wheel, studs are fixedly arranged on both ends of the connecting shaft, and locking components are arranged on the surface of the studs.
[0007] Preferably, the locking assembly includes a threaded block threadedly arranged on the surface of the stud, a limiting plate is fixedly arranged on the rear side of the threaded block, a limiting frame 1 and a guide frame 1 are slidably arranged on the surface of the limiting plate, the rear side of the limiting frame 1 is fixedly installed on the front side of the door frame body, the guide frame 1 is fixedly installed on the front side of the steel painted fire door body, and auxiliary reinforcement components are arranged on the surfaces of the limiting plates on the left and right sides.
[0008] Preferably, the auxiliary reinforcement component includes a pushing plate arranged on the surface of the limiting plate, the pushing plate is overlapped on the inclined surface with a movable plate, a limiting frame 2 and a guide frame 2 are slidably arranged on the surface of the movable plate, the limiting frame 2 is fixedly installed on the front side of the steel painted fire door body at the fixed rear side, and the guide frame 2 is fixedly installed on the front side of the steel painted fire door body at the rear side.
[0009] Preferably, there are several limit plates, and the limit plates are distributed in a linear array, and the limit plates are made of metal.
[0010] Preferably, the limiting frame 1 and the guide frame 1 are both U-shaped structures, the limiting frame 1 and the guide frame 1 have the same specifications, and the limiting frame 1 and the guide frame 1 are both made of metal material.
[0011] Preferably, the number of the worm gears and the number of connecting shafts are both several, and the several worm gears and the several connecting shafts are all located inside the protective shell and distributed in a linear array.
[0012] Preferably, a side of the movable plate close to the pushing plate is an inclined surface, and the inclined surface of the movable plate is matched with the inclined surface of the pushing plate.
[0013] Compared with the prior art, the beneficial effects of the utility model are as follows: the steel painted fire door, through the arrangement of the turning handle, the rotating shaft, the worm, the worm wheel, the connecting shaft, the stud, the threaded block, the limit plate, the limit frame and the guide frame, is convenient for strengthening the connection between the steel painted fire door and the door frame, avoiding the deformation of the hinge and the door lock caused by the impact force of the flame, thereby avoiding the situation where a gap appears between the steel painted fire door and the door frame, and through the arrangement of the worm and the worm wheel, the connecting shaft can be locked, thereby locking the stud, thereby avoiding the shaking of the steel painted fire door when subjected to impact force, causing the limit plate to slip out of the limit frame. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is the structural survey drawing of the utility model;
[0015] Figure 2 It is a right sectional view of the structure of the utility model;
[0016] Figure 3 It is a schematic diagram of the local structure of the utility model;
[0017] Figure 4 for Figure 3 A magnified view of the structure at A;
[0018] Figure 5 This is a schematic diagram of the structure of the structural reinforcement component of the utility model.
[0019] In the figure: 1. Door frame body; 2. Steel painted fireproof door body; 3. Protective shell; 4. Rotating shaft; 5. Turning handle; 6. Worm; 7. Worm gear; 8. Connecting shaft; 9. Stud; 10. Threaded block; 11. Limiting plate; 12. Limiting frame 1; 13. Guide frame 1; 14. Pushing plate; 15. Moving plate; 16. Limiting frame 2; 17. Guide frame 2. DETAILED DESCRIPTION
[0020] 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.
[0021] Reference Figure 1-5 A steel painted fireproof door comprises a door frame body 1, a steel painted fireproof door body 2 is hingedly arranged inside the door frame body 1, a protective shell 3 is fixedly arranged on the front side of the steel painted fireproof door body 2, a turning handle 5 is rotatably arranged inside the protective shell 3, a rotating shaft 4 is fixedly arranged on the surface of the turning handle 5, a worm 6 is fixedly arranged on the left end of the turning handle 5, a worm wheel 7 is meshedly arranged on the surface of the worm 6, a connecting shaft 8 is fixedly arranged inside the worm wheel 7, studs 9 are fixedly arranged at both ends of the connecting shaft 8, the number of worm wheels 7 and the connecting shaft 8 are both several, and the several worm wheels 7 and the several connecting shafts 8 are all located inside the protective shell 3 and are distributed in a linear array, through the several worm wheels 7 and the several The connecting shaft 8 can drive several studs 9 to rotate at the same time. Through the arrangement of the turning handle 5, the rotating shaft 4, the worm 6, the worm wheel 7, the connecting shaft 8, the studs 9, the threaded block 10, the limit plate 11, the limit frame 12 and the guide frame 13, it is convenient to strengthen the connection between the steel painted fire door and the door frame, avoiding the deformation of the hinge and the door lock caused by the impact force of the flame, thereby avoiding the gap between the steel painted fire door and the door frame. In addition, through the arrangement of the worm 6 and the worm wheel 7, the connecting shaft 8 can be locked, thereby locking the studs 9, avoiding the shaking of the steel painted fire door when subjected to impact force, causing the limit plate 11 to slip out of the limit frame 12.
[0022] Specifically, a locking assembly is provided on the surface of the stud 9, and the locking assembly includes a threaded block 10 threadedly provided on the surface of the stud 9, and a limit plate 11 is fixedly provided on the rear side of the threaded block 10. The number of the limit plates 11 is several, and the limit plates 11 are distributed in a linear array. The limit plates 11 are made of metal material, which increases the locking strength of the limit plates 11 on the steel painted fire door body 2, so that the steel painted fire door body 2 can withstand greater impact force. The surface of the limit plate 11 is slidingly provided There are a limit frame 12 and a guide frame 13, both of which are U-shaped structures, and the limit frame 12 and the guide frame 13 have the same specifications. The limit frame 12 and the guide frame 13 are both made of metal material. The limit frame 12 and the guide frame 13 have higher strength, making it less likely for the limit frame 12 and the guide frame 13 to be broken. The rear side of the limit frame 12 is fixedly installed on the front side of the door frame body 1, and the guide frame 13 is fixedly installed on the front side of the steel painted fire door body 2.
[0023] Specifically, the surfaces of the limit plates 11 on the left and right sides are provided with auxiliary reinforcement components, and the auxiliary reinforcement components include a pushing plate 14 arranged on the surface of the limit plate 11, and a movable plate 15 is overlapped on the inclined surface of the pushing plate 14. The side of the movable plate 15 close to the pushing plate 14 is an inclined surface, and the inclined surface of the movable plate 15 is adapted to the inclined surface of the pushing plate 14. A limit frame 16 and a guide frame 17 are slidingly arranged on the surface of the movable plate 15. The rear side of the limit frame 16 is fixedly installed on the front side of the steel painted fire door body 2, and the rear side of the guide frame 17 is fixedly installed on the front side of the steel painted fire door body 2. The limit plate 11 drives the pushing plate 14 to move, so that the movable plate 15 is inserted into the limit frame 16, thereby making the connection strength between the steel painted fire door body 2 and the door frame body 1 higher.
[0024] During use: when the steel painted fire door body 2 is closed, the turning handle 5 drives the rotating shaft 4 to rotate, and the rotating shaft 4 drives the worm 6 to rotate, and the worm gear 7 is driven by the worm 6 to rotate, so that the worm gear 7 drives the connecting shaft 8 to rotate, and the stud 9 is driven to rotate through the connecting shaft 8, and the threaded block 10 moves along the thread direction of the surface of the stud 9, so that the threaded block 10 pushes the limit plate 11 to move, and the moving direction of the limit plate 11 is guided by the guide frame 13, so that the limit plate 11 is inserted into the limit frame 12. When the steel painted fire door body 2 is subjected to the impact force of flame, the steel painted fire door body 2 is blocked by the limit plate 11, the limit frame 12 and the guide frame 13, and the impact force received by the hinge and the door lock is shared.
[0025] To sum up, the steel painted fire door, through the arrangement of the turning handle 5, the rotating shaft 4, the worm 6, the worm wheel 7, the connecting shaft 8, the stud 9, the threaded block 10, the limit plate 11, the limit frame 12 and the guide frame 13, is convenient for strengthening the connection between the steel painted fire door and the door frame, avoiding the deformation of the hinge and the door lock due to the impact force of the flame, thereby avoiding the situation where a gap occurs between the steel painted fire door and the door frame, and through the arrangement of the worm 6 and the worm wheel 7, the connecting shaft 8 can be locked, thereby locking the stud 9, avoiding the shaking of the steel painted fire door when subjected to impact force, causing the limit plate 11 to slide out of the limit frame 12, thereby solving the problems raised in the above-mentioned background technology.
[0026] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.
[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A steel painted fireproof door, comprising a door frame body (1), characterized in that: A steel painted fireproof door body (2) is hingedly arranged inside the door frame body (1), a protective shell (3) is fixedly arranged on the front side of the steel painted fireproof door body (2), a turning handle (5) is rotatably arranged inside the protective shell (3), a rotating shaft (4) is fixedly arranged on the surface of the turning handle (5), a worm (6) is fixedly arranged on the left end of the turning handle (5), a worm wheel (7) is meshedly arranged on the surface of the worm (6), a connecting shaft (8) is fixedly arranged inside the worm wheel (7), studs (9) are fixedly arranged at both ends of the connecting shaft (8), and a locking assembly is arranged on the surface of the studs (9).
2. A steel painted fireproof door according to claim 1, characterized in that: The locking assembly comprises a threaded block (10) threadedly arranged on the surface of the stud (9), a limit plate (11) fixedly arranged on the rear side of the threaded block (10), a limit frame (12) and a guide frame (13) slidably arranged on the surface of the limit plate (11), the rear side of the limit frame (12) fixedly mounted on the front side of the door frame body (1), the guide frame (13) fixedly mounted on the front side of the steel painted fireproof door body (2), and auxiliary reinforcement assemblies are arranged on the surfaces of the limit plates (11) on the left and right sides.
3. A steel painted fireproof door according to claim 2, characterized in that: The auxiliary reinforcement component comprises a pushing plate (14) arranged on the surface of the limiting plate (11); the pushing plate (14) is overlapped with a movable plate (15) on an inclined surface; a limiting frame (16) and a guide frame (17) are slidably arranged on the surface of the movable plate (15); the limiting frame (16) is fixedly mounted at the rear side on the front side of the steel painted fireproof door body (2); and the guide frame (17) is fixedly mounted at the rear side on the front side of the steel painted fireproof door body (2).
4. A steel painted fireproof door according to claim 2, characterized in that: The number of the limiting plates (11) is several, and the limiting plates (11) are distributed in a linear array, and the limiting plates (11) are made of metal material.
5. A steel painted fireproof door according to claim 2, characterized in that: The limiting frame 1 (12) and the guide frame 1 (13) are both U-shaped structures, the limiting frame 1 (12) and the guide frame 1 (13) have the same specifications, and the limiting frame 1 (12) and the guide frame 1 (13) are both made of metal material.
6. A steel painted fireproof door according to claim 2, characterized in that: The number of the worm gears (7) and the number of the connecting shafts (8) are both multiple, and the multiple worm gears (7) and the multiple connecting shafts (8) are all located inside the protective shell (3) and are distributed in a linear array.
7. The steel painted fireproof door according to claim 3, characterized in that: A side of the movable plate (15) close to the push plate (14) is an inclined surface, and the inclined surface of the movable plate (15) is matched with the inclined surface of the push plate (14).