Single galvanized steel sheet heat insulation fireproof door

Abstract

The utility model discloses a single-open galvanized steel sheet heat insulation fireproof door which comprises a fireproof door body and a door frame, the two sides of the left side of the front face of the fireproof door body are movably connected with the left side of the front face of the door frame through hinges, and positioning seats are arranged on the two sides of the left side of the front face of the fireproof door body. The rear side of the inner wall of the positioning seat is fixedly connected with an electromagnet, and the rear side of the inner wall of the positioning seat is fixedly connected with a spring. According to the fireproof door, the positioning seats are arranged, when the fireproof door body is opened, the positioning seats can be driven to be connected with the positioning pieces in an inserted mode, the rubber balls are embedded into the corresponding embedding grooves, and therefore the current fireproof door body is positioned, and the fireproof door body is not closed any more; the problem that part of fireproof doors arranged at the evacuation staircase position are lack of fireproof door positioning structures, so that in the process that multiple persons intermittently escape through the evacuation staircase, the fireproof doors can be continuously and automatically closed, and then the follow-up personnel escape efficiency is affected is solved, and the auxiliary positioning effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of fire doors, in particular to a single-leaf galvanized steel heat-insulating fire door. Background Technique

[0002] Fire doors are generally installed in fire compartments, evacuation stairwells, vertical shafts and other places. They are fire separation structures with a certain fire resistance. The door frames and door leaves are made of high-quality galvanized steel plates or stainless steel plates. The door leaves are filled with high-temperature-resistant perlite boards and are treated with electrostatic spraying on the surface or by using a heat transfer printing process. They can prevent the spread of fire and smoke, can prevent the spread of fire for a certain period of time, ensure the evacuation of personnel, and the embedded sealing strips fit tightly with the door leaves, making them fireproof, heat-insulating and sound-insulating.

[0003] For example, the application number: CN202222172316.1. The utility model relates to the technical field of fire doors, in particular to a single-leaf galvanized steel heat-insulating fire door, including a door frame. One side of the door frame is movably connected with a first door panel through a hinge, and the other side of the door frame is movably connected with a second door panel through a hinge. A connecting seat is fixed at the front end of the first door panel, and a handle is arranged at the front end of the connecting seat; a protection mechanism, the protection mechanism includes a storage cavity, the storage cavity is opened inside the first door panel and the second door panel, a shielding plate is arranged inside the storage cavity, and a plug board is fixed at the top of the shielding plate. A plug cavity is opened inside the plug board, limiting rods are inserted on both sides inside the plug cavity, a first spring is fixed between the two limiting rods, and a pull rod is fixed on the outer wall of the first spring. The utility model is convenient for shielding the distance between the first door panel and the second door panel and the ground, avoiding the entry of thick smoke and high temperature through the gap, and making the heat-insulating and smoke-isolating effect better.

[0004] Based on the retrieval of the above patent and the combination with the equipment in the prior art, it is found that when the above equipment is applied, although it can solve the problem that there is a distance between the door panel and the ground, and in case of a fire, thick smoke and high temperature are likely to enter from the gap at the bottom of the door panel, resulting in poor heat-insulating and smoke-isolating effects of the fire door and reducing the protection and practicality of the device, during the use process, some fire doors installed in the evacuation stairwell lack a structure for positioning the fire door, resulting in the continuous automatic closing of the fire door during the process of multiple people evacuating intermittently through the evacuation stairwell, thus affecting the evacuation efficiency of subsequent personnel. Content of the Utility Model

[0005] In order to solve the problems raised in the above background technique, the purpose of the present utility model is to provide a single-leaf galvanized steel heat-insulating fire door, which has the advantage of auxiliary positioning, and solves the problem that some fire doors installed in the evacuation stairwell lack a structure for positioning the fire door, resulting in the continuous automatic closing of the fire door during the process of multiple people evacuating intermittently through the evacuation stairwell, thus affecting the evacuation efficiency of subsequent personnel.

[0006] To achieve the above object, the present utility model provides the following technical solution: a single-leaf galvanized steel heat-insulating and fire-proof door, comprising a fire-proof door body and a door frame. Both sides of the left side of the front surface of the fire-proof door body are movably connected to the left side of the front surface of the door frame through hinges. Both sides of the left side of the front surface of the fire-proof door body are provided with positioning seats. An electromagnet is fixedly connected to the rear side of the inner wall of the positioning seat, and a spring is fixedly connected to the rear side of the inner wall of the positioning seat. Both sides of the left side of the front surface of the door frame are fixedly connected with positioning members. A rubber ball is arranged on the right side of the surface of the positioning member. A plurality of rubber balls are arranged and distributed at equal intervals in a ring shape. A plurality of embedding grooves are formed in the top surface of the inner wall of the positioning seat and are distributed at equal intervals in a ring shape. A timing control mechanism is fixedly connected to the left side of the front surface of the fire-proof door body. Limiting components are formed on both sides of the rear side of the inner wall of the positioning seat.

[0007] Preferably, the timing control mechanism includes a time relay. The back surface of the time relay is fixedly connected to the left side of the front surface of the fire-proof door body. A pressure detection controller is fixedly connected to the left side of the rear side of the inner wall of the positioning seat. Both the pressure detection controller and the electromagnet are electrically connected to the time relay through wires. A force-bearing plate is slidably connected inside the positioning seat.

[0008] Preferably, the limiting component includes a limiting groove formed on both sides of the rear side of the inner wall of the positioning seat. A limiting rod is slidably connected inside the limiting groove. The front surface of the limiting rod is fixedly connected to both sides of the back surface of the force-bearing plate.

[0009] Preferably, a protective pad is fixedly connected to the front surface of the electromagnet. The protective pad is arranged in a mesh shape.

[0010] Preferably, triangular reinforcing plates are fixedly connected to both sides of the positioning member. The back surfaces of the triangular reinforcing plates are fixedly connected to both sides of the left side of the front surface of the door frame. Reinforcing rods are fixedly connected to both sides of the left side of the positioning member. The rear sides of the right sides of the reinforcing rods are fixedly connected to both sides of the left side of the door frame.

[0011] Preferably, a vertical rod is arranged inside the reinforcing rod. Both sides of the vertical rod are fixedly connected to both sides of the reinforcing rod. The rubber ball is fixedly connected to the positioning member through PET glue.

[0012] Preferably, connection substrates are fixedly connected to the rear sides of both sides of the positioning seat. The connection substrates are fixedly connected to both sides of the left side of the front surface of the fire-proof door body through bolts.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] 1. The utility model solves the problem that some fire doors installed in evacuation stairwells lack a structure for positioning the fire doors. When the fire door body is opened, it drives the positioning seat to be inserted into the positioning member, and the rubber ball is embedded into the corresponding embedding groove, thereby positioning the current fire door body and preventing the fire door body from closing. During the process of multiple people escaping intermittently through the evacuation stairwell, the fire door will continuously close automatically, thus affecting the escape efficiency of subsequent personnel, achieving the effect of auxiliary positioning.

[0015] 2. The utility model is provided with a timing control mechanism. When the positioning member is adsorbed, it will squeeze the force receiving plate, causing the force receiving plate to exert pressure on the pressure detection controller. When the pressure detection controller receives a large pressure, the pressure detection controller will send an electrical signal to turn on the time relay for short-time timing. When the timing of the time relay ends, it will send an electrical signal to turn off the electromagnet. Then the electromagnet no longer adsorbs the positioning member, and then the elastic force of the spring will generate a thrust on the positioning member. Next, the reaction force generated when the spring generates the thrust can drive the fire door body to close, thereby being able to continue fire prevention without affecting the intermittent escape of personnel.

[0016] 3. The utility model is provided with a limit component. During the process of the force receiving plate moving slightly under pressure, it will drive the limit rod to slide in the limit groove. By using the sliding fit between the limit rod and the limit groove, the force receiving plate can be limited in the front, left, and right directions, preventing the force receiving plate from shifting during use and improving the stability of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a three-dimensional structural schematic diagram of the utility model;

[0018] Figure 2 is a sectional structural schematic diagram of the positioning seat of the utility model;

[0019] Figure 3 is the utility model Figure 1 is an enlarged structural schematic diagram at position A in.

[0020] In the figure: 1. Fire door body; 2. Door frame; 3. Positioning seat; 4. Electromagnet; 5. Spring; 6. Positioning member; 7. Rubber ball; 8. Timing control mechanism; 81. Time relay; 82. Pressure detection controller; 83. Force receiving plate; 9. Limit component; 91. Limit groove; 92. Limit rod; 10. Embedding groove; 11. Protective pad; 12. Triangular reinforcement plate; 13. Reinforcement rod; 14. Vertical rod; 15. Connecting base plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0022] As Figures 1 to 3 shown, a single-leaf galvanized steel heat-insulating and fire-proof door provided by the present utility model includes a fire-proof door body 1 and a door frame 2. Both sides of the left side of the front surface of the fire-proof door body 1 are movably connected to the left side of the front surface of the door frame 2 through hinges. Both sides of the left side of the front surface of the fire-proof door body 1 are provided with positioning seats 3. An electromagnet 4 is fixedly connected to the rear side of the inner wall of the positioning seat 3, and a spring 5 is fixedly connected to the rear side of the inner wall of the positioning seat 3. Both sides of the left side of the front surface of the door frame 2 are fixedly connected with positioning members 6. A rubber ball 7 is arranged on the right side of the surface of the positioning member 6. A plurality of rubber balls 7 are arranged and distributed at equal intervals in a ring shape. A plurality of embedding grooves 10 are formed in the top surface of the inner wall of the positioning seat 3 and are distributed at equal intervals in a ring shape. A timing control mechanism 8 is fixedly connected to the left side of the front surface of the fire-proof door body 1. Limiting components 9 are formed in both sides of the rear side of the inner wall of the positioning seat 3.

[0023] Referring to Figure 1 and Figure 3 , the timing control mechanism 8 includes a time relay 81. The back surface of the time relay 81 is fixedly connected to the left side of the front surface of the fire-proof door body 1. A pressure detection controller 82 is fixedly connected to the left side of the rear side of the inner wall of the positioning seat 3. Both the pressure detection controller 82 and the electromagnet 4 are electrically connected to the time relay 81 through wires. A force-bearing plate 83 is slidably connected inside the positioning seat 3.

[0024] As a technical optimization solution of the present utility model, by setting the timing control mechanism 8, when the positioning member 6 is adsorbed, it will exert pressure on the force-bearing plate 83, causing the force-bearing plate 83 to exert pressure on the pressure detection controller 82. When the pressure detection controller 82 receives a large pressure, the pressure detection controller 82 will send an electrical signal to turn on the time relay 81 for short-time timing. When the timing of the time relay 81 ends, it will send an electrical signal to turn off the electromagnet 4. Then the electromagnet 4 will no longer adsorb the positioning member 6. Then, the elastic force of the spring 5 will exert a thrust on the positioning member 6. Then, the reaction force generated when the spring 5 exerts a thrust can drive the fire-proof door body 1 to close, so as to continue to prevent fire and at the same time not affect the intermittent escape of personnel.

[0025] Referring to Figure 2, the limiting component 9 includes a limiting groove 91, the limiting groove 91 is opened on both sides of the rear side of the inner wall of the positioning seat 3, a limiting rod 92 is slidably connected inside the limiting groove 91, and the front surface of the limiting rod 92 is fixedly connected to both sides of the back surface of the force-bearing plate 83.

[0026] As a technical optimization scheme of the present invention, by setting the limiting component 9, during the process of the force-bearing plate 83 generating slight movement under pressure, the limiting rod 92 will be driven to slide in the limiting groove 91. By using the sliding fit between the limiting rod 92 and the limiting groove 91, the force-bearing plate 83 can be limited in the front, left, and right directions, preventing the force-bearing plate 83 from shifting during use and improving the use stability.

[0027] Reference Figure 2 , a protective pad 11 is fixedly connected to the front surface of the electromagnet 4, and the protective pad 11 is arranged in a mesh shape.

[0028] As a technical optimization scheme of the present invention, by setting the protective pad 11, the impact force generated when the positioning post is adsorbed by the magnetic force of the electromagnet 4 can be buffered by the protective pad 11, preventing the electromagnet 4 from being damaged due to excessive impact force. By using the fact that the protective pad 11 is arranged in a mesh shape, the protective pad 11 does not affect the magnetic adsorption effect of the electromagnet 4 during the protection process of the electromagnet 4.

[0029] Reference Figure 3 , triangular reinforcement plates 12 are fixedly connected to both sides of the positioning member 6, the back surface of the triangular reinforcement plates 12 is fixedly connected to both sides of the left side of the front surface of the door frame 2, and reinforcement rods 13 are fixedly connected to both sides of the left side of the positioning member 6, and the rear side of the right side of the reinforcement rods 13 is fixedly connected to both sides of the left side of the door frame 2.

[0030] As a technical optimization scheme of the present invention, by setting the triangular reinforcement plates 12, the triangular reinforcement plates 12 can be used to reinforce the positioning member 6 up and down. By setting the triangular reinforcement plates 12, the positioning member 6 can be reinforced left and right to avoid the positioning member 6 being bent and damaged during long-term use, and the service life of the positioning member 6 is improved.

[0031] Reference Figure 3 , a vertical rod 14 is arranged inside the reinforcement rod 13, both sides of the vertical rod 14 are fixedly connected to both sides of the reinforcement rod 13, and the rubber ball 7 is fixedly connected to the positioning member 6 through PET glue.

[0032] As a technical optimization scheme of the present invention, by setting the vertical rod 14, the vertical rod 14 can be used to reinforce between the reinforcement rods 13, thereby further improving the reinforcement strength of the reinforcement rods 13 and ensuring the use stability. By using the advantage of strong adhesiveness of PET glue, the fixing strength of the rubber ball 7 is improved, and the rubber ball 7 is prevented from falling off.

[0033] Reference Figure 3 , on both the rear sides of both sides of the positioning seat 3, connection substrates 15 are fixedly connected, and the connection substrates 15 are fixedly connected to both sides on the left front of the fire door body 1 through bolts.

[0034] As a technical optimization scheme of the present utility model, by providing the connection substrate 15, when the user needs to install the positioning seat 3, the user can quickly connect the connection substrate 15 on the corresponding positioning seat 3 to the fire door body 1 using bolts, thereby ensuring the stability of the use of the positioning seat 3.

[0035] The working principle and usage process of the present utility model: When a fire occurs and a person opens the fire door body 1, the fire door body 1 will drive the positioning seat 3 to be inserted into the positioning member 6, and the rubber ball 7 will be embedded into the corresponding embedding groove 10, thereby positioning the current fire door body 1 so that the fire door body 1 is not closed, facilitating subsequent personnel evacuation. At the same time, the spring 5 is compressed and generates a resilience force, and the electromagnet 4 will adsorb the positioning member 6 to prevent the positioning member 6 from separating from the positioning seat 3. When the positioning member 6 is adsorbed, it will exert pressure on the force receiving plate 83, causing the force receiving plate 83 to exert pressure on the pressure detection controller 82. When the pressure detection controller 82 receives a large pressure, the pressure detection controller 82 will send an electrical signal to activate the time relay 81 for short-time timing. When the timing of the time relay 81 ends, it will send an electrical signal to turn off the electromagnet 4. Then the electromagnet 4 no longer adsorbs the positioning member 6, and then the elastic force of the spring 5 will generate a thrust on the positioning member 6. Then, using the reaction force when the spring 5 generates the thrust, it can drive the fire door body 1 to close, thereby being able to continue fire prevention while not affecting the intermittent escape of personnel. And during the process of the force receiving plate 83 generating slight movement under pressure, it will drive the limiting rod 92 to slide in the limiting groove 91. By using the sliding fit between the limiting rod 92 and the limiting groove 91, the force receiving plate 83 can be limited in the front, left, and right directions, preventing the force receiving plate 83 from shifting during use and improving the usage stability, and having the ability of auxiliary positioning.

[0036] In summary: For this single-leaf galvanized steel sheet heat-insulating fire door, by providing the positioning seat 3, when the fire door body 1 is opened, it will drive the positioning seat 3 to be inserted into the positioning member 6, and the rubber ball 7 will be embedded into the corresponding embedding groove 10, thereby positioning the current fire door body 1 so that the fire door body 1 is not closed, solving the problem that some fire doors installed in the evacuation staircase lack a structure for positioning the fire door, resulting in the fire door constantly automatically closing during the process of multiple people intermittently escaping through the evacuation staircase, thus affecting the subsequent personnel evacuation efficiency.

[0037] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or elements inherent to such process, method, article or device.

[0038] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A single-opening galvanized steel plate heat-insulating fire door, comprising a fire door body (1) and a door frame (2), characterized in that: Both sides of the left side of the front face of the fire door body (1) are movably connected to the left side of the front face of the door frame (2) through hinges. Both sides of the left side of the front face of the fire door body (1) are provided with a positioning seat (3). The rear side of the inner wall of the positioning seat (3) is fixedly connected to an electromagnet (4). The rear side of the inner wall of the positioning seat (3) is fixedly connected to a spring (5). Both sides of the left side of the front face of the door frame (2) are fixedly connected to a positioning piece (6). The right side of the surface of the positioning piece (6) is provided with a rubber ball (7). A plurality of the rubber balls (7) are provided and are distributed in an annular shape with equal distance. The top of the inner wall surface of the positioning seat (3) is provided with an inlay groove (10). A plurality of the inlay grooves (10) are provided and are distributed in an annular shape with equal distance. The left side of the front face of the fire door body (1) is fixedly connected to a timing control mechanism (8). Both sides of the rear side of the inner wall of the positioning seat (3) are provided with a limit position assembly (9).

2. The single-opening galvanized steel plate heat-insulating fire door according to claim 1, characterized in that: The timing control mechanism (8) comprises a time relay (81), the back side of the time relay (81) being fixedly connected to the left side of the front side of the fire door body (1), the left side of the rear side of the inner wall of the positioning seat (3) being fixedly connected to a pressure detection controller (82), the pressure detection controller (82) and the electromagnet (4) being electrically connected to the time relay (81) via a wire, and the interior of the positioning seat (3) being slidably connected to a force-bearing plate (83).

3. The single-opening galvanized steel plate heat-insulating fire door according to claim 2, characterized in that: The limiting assembly (9) comprises a limiting groove (91), the limiting groove (91) being provided on both sides of the rear side of the inner wall of the positioning seat (3), the limiting groove (91) being internally slidably connected to a limiting rod (92), the front side of the limiting rod (92) being fixedly connected to both sides of the back side of the force-bearing plate (83).

4. The single-opening galvanized steel plate heat-insulating fire door according to claim 1, characterized in that: A protective pad (11) is fixedly connected to the front side of the electromagnet (4), and the protective pad (11) is arranged in a mesh shape.

5. The single-opening galvanized steel plate heat-insulating fire door according to claim 1, characterized in that: Both sides of the positioning member (6) are fixedly connected to triangular reinforcing plates (12), the back side of the triangular reinforcing plates (12) are fixedly connected to both sides of the left side of the front side of the door frame (2), both sides of the left side of the positioning member (6) are fixedly connected to reinforcing rods (13), and the rear side of the right side of the reinforcing rod (13) is fixedly connected to both sides of the left side of the door frame (2).

6. The single-opening galvanized steel plate heat-insulating fire door according to claim 5, characterized in that: A vertical rod (14) is provided inside the reinforcing rod (13), two sides of the vertical rod (14) are fixedly connected to two sides of the reinforcing rod (13), and the rubber ball (7) is fixedly connected to the positioning piece (6) by means of PET glue.

7. The single-opening galvanized steel plate heat-insulating fire door according to claim 1, characterized in that: The rear sides of both sides of the positioning seat (3) are fixedly connected to a connecting base plate (15), and the connecting base plate (15) is fixedly connected to both sides of the left side of the front side of the fire door body (1) by bolts.

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