Fire safety door installed without shaft
By adopting the design of belt winding and rotating pressure plate in the shaftless fire safety door, the problem of the door panel being stuck by foreign objects during sliding is solved, ensuring that the door can be completely opened and reducing safety risks.
Patent Information
- Application Number
- CN202510218489.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-26
- Publication Date
- 2025-06-27
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
During the long-term use of existing sliding fire safety doors without shafts, foreign objects in the ground slide rails are not cleaned in time, which can easily cause the door panel to be stuck and cannot be completely opened, which poses safety hazards.
A fire safety door with no shaft is designed, using a belt and reel system. The belt is reeled to the outer wall of the reel during the movement of the door panel to prevent the belt from being loose and stuck between the door panel and the guide rail. At the same time, the belt is pressed by rotating the pressure plate to prevent foreign objects from entering the translation track.
It effectively avoids the problem of the door panel being stuck by foreign objects during movement, ensures that the fire safety door can be completely opened, and reduces safety risks.
Smart Images

Figure CN120211604A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of fire safety doors, and specifically to a fire safety door with shaftless installation. Background Art
[0002] Fire safety doors, also known as fire doors, are safety devices that can effectively block the spread of fire within a certain period of time, increasing the evacuation time of personnel. There are various types of them (such as framed and paneled fire safety doors, shaftless sliding fire safety doors, rolling shutter fire safety doors).
[0003] When some existing shaftless sliding fire safety doors are in use, a translation rail is installed on the ground, and the fire safety door is installed in the rail. The safety door can move smoothly by sliding. However, during long-term use of such shaftless sliding fire safety doors, if there are large particle foreign objects (such as stones, plastics, etc.) in the rail on the ground and they are not cleaned in time, it is easy to cause the fire safety door to be stuck by foreign objects during the movement on the rail, resulting in the fire safety door being unable to be fully opened, posing a safety hazard. Summary of the Invention
[0004] The purpose of the present invention is to provide a fire safety door with shaftless installation to solve the problems raised in the above background art.
[0005] To achieve the above purpose, the present invention provides the following technical solution: A fire safety door with shaftless installation includes a door panel that can move smoothly and prevent jamming. The fire safety door with shaftless installation further includes, A guide rail for guiding the movement of the door panel; A sliding plate provided on the guide rail, and the sliding plate can guide the door panel to move translationally during the movement; A belt for covering the translation rail on the guide rail; A winding shaft provided on the sliding plate and connected to one end of the belt, facilitating the winding of the belt during the movement of the sliding plate; A rotating shaft provided on the guide rail and connected to one end of the belt, facilitating the tensioning of the belt during the movement of the sliding plate; A pressing component provided on the guide rail, and the pressing component has a rotating pressing plate that can press the belt; Wherein, when the door panel is in the unmoved state, the belt can cover the translation rail on the guide rail that guides the movement of the sliding plate, preventing foreign objects from being on the translation rail and causing the door panel to be stuck during the movement; When the door panel is moving translationally on the guide rail following the sliding plate, the belt is wound onto the outer wall of the winding shaft, preventing the belt from being in a loose state and being caught between the door panel and the guide rail.
[0006] A number of the pressing components are provided and are all located on the guide rail. The pressing component includes a movable block, and a number of translation rods are arranged on the movable block. The translation rods all penetrate through one side wall of the guide rail and extend into the inner wall of the guide rail. Through the translation rods, it can be ensured that the movable block can move translationally. And a rotating rod is arranged at the top end of the movable block. The rotating rod is rotatably connected to the movable block through a torsion spring. The rotating rod is fixedly connected to the rotating pressing plate as a whole. By driving the rotating rod to rotate through the torsion spring, it is convenient to make the rotating pressing plate closely adhere to the belt without external force interference.
[0007] A door frame is movably attached to the door panel. The door frame is provided with an anti-disengagement component and a positioning groove. The anti-disengagement component includes a fixing plate. A number of translation grooves are arranged on the fixing plate. And a push plate is slidably installed in each of the translation grooves. And the push plates are all connected to the inner walls of the translation grooves through return springs. By pushing the push plates to move through the return springs, it is convenient to make the door panel closely adhere to the door frame, achieving a safety protection effect.
[0008] A limit baffle is fixedly installed on the sliding plate. During the movement of the door panel, by making the limit baffle adhere to the inner wall of the guide rail, it can be avoided that the sliding plate disengages from the guide rail.
[0009] A number of grooves are arranged at the top end of the sliding plate. And a translation block is movably installed in each of the grooves. And the top ends of the translation blocks are all fixedly connected to the door panel. The translation blocks are all connected to the inner walls of the grooves on the sliding plate through connecting springs, ensuring that the door panel can adhere to the door frame.
[0010] A limit plate is fixedly installed on the door frame. By means of the limit plate, it can be avoided that after the sliding plate completely moves onto the guide rail, the door panel is pushed by the connecting spring and the return spring to be displaced, resulting in the inability to continue using.
[0011] A positioning frame matching the positioning groove is arranged on the door panel. By making the positioning frame enter the positioning groove, the closing effect after the door panel adheres to the door frame can be increased.
[0012] A T-shaped plate is arranged at the bottom end of the sliding plate. A T-shaped groove matching the T-shaped plate is arranged on the guide rail. By making the T-shaped plate move translationally in the T-shaped groove, it can be avoided that the sliding plate falls off the guide rail.
[0013] Rollers are arranged at the bottom end of the T-shaped plate. By rolling the rollers on the ground, it is convenient to quickly control the translational movement of the door panel.
[0014] A groove for storing the rollers is arranged on the guide rail, which can avoid the rollers affecting the movement of the sliding plate onto the guide rail.
[0015] Compared with the prior art, the beneficial effects of the present invention are: In the present invention, a translation track for providing the translation movement of the sliding plate is formed by a belt being tightened by a winding shaft and a rotating shaft and being located on a guide rail. The translation track is shielded, and a rotating pressing plate presses the belt to prevent sundries from entering the translation track through the gap between the belt and the translation track on the guide rail, which may cause the door panel to be stuck and prevent the fire safety door from being fully opened. Description of the Drawings
[0016] Figure 1 It is a schematic diagram of the overall structure of the present invention.
[0017] Figure 2 For the present invention Figure 1 An enlarged schematic diagram of the structure at A in it.
[0018] Figure 3 It is a schematic diagram of the structure of the door frame of the present invention.
[0019] Figure 4 It is a schematic diagram of the structure of the door panel of the present invention.
[0020] Figure 5 For the present invention Figure 4 An enlarged schematic diagram of the structure at B in it.
[0021] Figure 6 It is a schematic diagram of the structure of the pressing component of the present invention.
[0022] Figure 7 It is a schematic diagram of the structure of the sliding plate of the present invention.
[0023] Figure 8 It is a schematic diagram of the structure of the guide rail of the present invention.
[0024] In the figure: 1, door frame; 2, anti - detachment component; 3, limiting plate; 4, door panel; 5, sliding plate; 6, T - shaped plate; 7, roller; 8, guide rail; 9, translation block; 10, connecting spring; 11, pressing component; 12, winding shaft; 13, rotating shaft; 14, belt; 15, movable block; 16, translation rod; 17, rotating pressing plate; 18, positioning frame; 19, positioning groove; 20, fixing plate; 21, reset spring; 22, push plate; 23, limiting baffle. Detailed Embodiment
[0025] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present invention.
[0026] Please refer to Figures 1 to 8, the present invention provides a technical solution: a shaftless-mounted fire safety door, including a door panel 4, a sliding plate 5 is provided at the bottom end of the door panel 4, a limit baffle 23 is fixedly installed on the sliding plate 5, by fitting the limit baffle 23 to the inner wall of the guide rail 8, it can prevent the sliding plate 5 from detaching from the guide rail 8. A number of grooves are provided at the top end of the sliding plate 5, and translation blocks 9 are movably installed in the grooves on the sliding plate 5, and the width dimension of the translation block 9 is the same as the width dimension of the groove on the sliding plate 5. The translation block 9 is connected to the inner wall of the groove on the sliding plate 5 by a connecting spring 10. The top ends of a number of translation blocks 9 are fixedly connected to the door panel 4 to form a whole. A door frame 1 is movably fitted on the door panel 4. A positioning groove 19 is provided on the door frame 1, and a positioning frame 18 is movably installed in the positioning groove 19. The positioning frame 18 is fixedly installed on the door panel 4. By inserting the positioning frame 18 into the positioning groove 19, it is convenient to closely fit the door panel 4 and the door frame 1 together. A guide rail 8 is provided at the bottom end of the sliding plate 5. During use, the guide rail 8 and the door frame 1 need to be fixedly installed at the required positions in advance. The guide rail 8 is provided with a translation track that can ensure the translational movement of the sliding plate 5. This translation track is a relatively common prior art and will not be elaborated here. A T-shaped groove is provided at the bottom end of the translation track, and a T-shaped plate 6 is movably installed in the T-shaped groove. The top end of the T-shaped plate 6 is fixedly connected to the sliding plate 5, which is convenient for preventing the sliding plate 5 from detaching from the guide rail 8 during use. A roller 7 is provided at the bottom end of the T-shaped plate 6. By rolling the roller 7 and providing support for the T-shaped plate 6, it is convenient to quickly push the door panel 4 to move translationally. And the guide rail 8 is also provided with a groove for storing the roller 7, which can prevent the roller 7 from affecting the movement of the sliding plate 5 onto the guide rail 8.
[0027] By pushing the door panel 4 to move towards the front end face, the positioning frame 18 is disengaged from the positioning groove 19, and then the door panel 4 can be pushed to move towards the left side, so that the sliding plate 5 completely enters the guide rail 8, and the fire safety door is opened.
[0028] A number of pressing components 11 are arranged on the guide rail 8. The pressing component 11 includes a movable block 15. Two translation rods 16 are fixedly installed on the movable block 15. The translation rod 16 is composed of a fixed rod and a telescopic rod. The telescopic rod extends into the inner cavity of the fixed rod. A number of arc-shaped grooves are arranged in the fixed rod. Two spring plungers matching the arc-shaped grooves are arranged on the outer wall of the telescopic rod, which can facilitate controlling the movement of the telescopic rod according to the use needs, so that the spring plungers are clamped into the arc-shaped grooves at different positions to adjust the overall length of the translation rod 16. Rotating rods are arranged at the tops of the movable blocks 15. The rotating rods are connected to the movable blocks 15 through torsion springs. A rotating pressing plate 17 is fixedly installed on the outer wall of the rotating rod. The rotation of the rotating rod can be controlled through the torsion spring, so that the rotating pressing plate 17 located on the rotating rod rotates into the guide rail 8. The right side side walls of the rotating pressing plate 17 are all inclined surfaces. When the sliding plate 5 moves onto the guide rail 8, it will contact the inclined surface of the rotating pressing plate 17, causing the rotating pressing plate 17 to rotate upward. The translation rods 16 all penetrate the front side wall of the guide rail 8 and extend into the guide rail 8. The positions of the translation rods 16 are biased to the left side of the rotating pressing plate 17. When the door panel 4 moves to directly above the guide rail 8 following the sliding plate 5, the rotating pressing plate 17 will contact the door panel 4 during the rotation process. At this time, the translation rod 16 will be affected and push the movable block 15 towards the front end face to prevent the rotating pressing plate 17 from being unable to rotate. Magnets of the same magnetism are installed at one end of the translation rod 16 extending into the guide rail 8 and on the inner wall of the front end face of the guide rail 8. Through the repulsion of the two magnets, the translation rod 16 can be reset.
[0029] A rotating shaft 13 is arranged on the guide rail 8. A winding shaft 12 is arranged on the sliding plate 5. The winding shaft 12 is connected to the sliding plate 5, and the guide rail 8 is connected to the rotating shaft 13 through torsion springs. The rotating shaft 13 is connected to the winding shaft 12 through a belt 14. The belt 14 can provide shielding for the translation track of the sliding plate 5 moving on the guide rail 8.
[0030] A anti-disengagement component 2 is fixedly installed at the top of the door frame 1. The anti-disengagement component 2 includes a fixed plate 20. A number of translation grooves are arranged at the bottom end of the fixed plate 20. Push plates 22 are slidably installed in the translation grooves. The push plates 22 are connected to the inner walls of the translation grooves through return springs 21. By pushing the push plates 22 to move through the return springs 21, the door panel 4 can be closely attached to the door frame 1. A limiting plate 3 is installed on the left side of the door frame 1. When the door panel 4 completely moves to directly above the guide rail 8, the positioning frame 18 fits against the limiting plate 3, which can prevent the back surface of the door panel 4 from not being in the same plane as the front end face of the door frame 1 due to the elastic force of the connecting spring 10, resulting in the inability to continue using.
[0031] When the present invention is in use, push the door panel 4 towards the front end face to disengage the positioning frame 18 from the positioning groove 19, and then the door panel 4 can be pushed to move to the left to open the fire safety door. During the movement of the door panel 4, the sliding plate 5 will push the rotating pressing plate 17 to rotate upward. At this time, the belt 14 is wound onto the outer wall of the winding shaft 12.
[0032] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. A fire safety door with shaftless installation, comprising a door panel capable of stable movement and anti-stuckness, characterized in that: The fire safety door without shaft installation also includes: A guide rail, used for guiding the movement of the door panel; A slide plate is arranged on the guide rail, and the slide plate can guide the door panel to move in translation during the movement process; A belt, used for shielding the translation track on the guide rail; A reel, which is disposed on the slide and connected to one end of the belt, so as to facilitate reeling the belt during the movement of the slide; A rotating shaft, which is arranged on the guide rail and connected to one end of the belt, so as to make the belt tight during the movement of the slide plate; A pressing assembly, the pressing assembly is arranged on the guide rail, and the pressing assembly has a rotating pressing plate capable of pressing the belt; Wherein, when the door panel is in a non-moving state, the belt can block the translation track on the guide rail that guides the movement of the slide plate, so as to prevent foreign objects from being on the translation track and causing the door panel to be stuck in the column during the movement; When the door panel follows the slide plate in the translational movement on the guide rail, the belt is rolled up onto the outer wall of the winding shaft to prevent the belt from being in a loose state and being stuck between the door panel and the guide rail.
2. A fire safety door without shaft installation according to claim 1, characterized in that: The pressing components are provided with several and all are located on the guide rail. The pressing components include a movable block, and the movable block is provided with several translation rods. The translation rods all penetrate one side wall of the guide rail and extend into the inner wall of the guide rail. The movable block can be ensured to be able to move translationally through the translation rod, and a rotating rod is provided at the top of the movable block. The rotating rod and the movable block are rotationally connected by a torsion spring. The rotating rod is fixedly connected to the rotating pressure plate as a whole. The rotating rod is driven to rotate by the torsion spring, so that the rotating pressure plate can be close to the belt without external interference.
3. A fire safety door without shaft installation according to claim 1, characterized in that: The door panel is movably fitted with a door frame, and the door frame is provided with an anti-slip assembly and a positioning groove. The anti-slip assembly includes a fixed plate, and a plurality of translation grooves are provided on the fixed plate. Push plates are slidably installed in the translation grooves, and the push plates are connected to the inner walls of the translation grooves by a return spring. The return spring pushes the push plate to move so that the door panel can be tightly fitted with the door frame, thereby achieving a safety protection effect.
4. The fire safety door without shaft installation according to claim 1, characterized in that: A limit baffle is fixedly mounted on the slide plate. During the movement of the door panel, the limit baffle is attached to the inner wall of the guide rail, thereby preventing the slide plate from being separated from the guide rail.
5. The fire safety door without shaft installation according to claim 1, characterized in that: The top of the slide plate is provided with a plurality of grooves, and translation blocks are movably installed in the grooves, and the tops of the translation blocks are fixedly connected to the door panels. The translation blocks are connected to the inner walls of the grooves on the slide plate through connecting springs to ensure that the door panels can fit the door frames.
6. The fire safety door without shaft installation according to claim 1, characterized in that: A limit plate is fixedly installed on the door frame, and the limit plate can prevent the door panel from being displaced due to the push of the connecting spring and the return spring after the sliding plate is completely moved onto the guide rail, resulting in the door panel being unable to continue to be used.
7. The fire safety door without shaft installation according to claim 1, characterized in that: The door panel is provided with a positioning frame matching the positioning groove. The positioning frame is passed into the positioning groove to increase the sealing effect after the door panel and the door frame are fitted together.
8. The fire safety door without shaft installation according to claim 1, characterized in that: A T-shaped plate is arranged at the bottom end of the slide plate, and a T-shaped slot matching the T-shaped plate is arranged on the guide rail. The slide plate can be prevented from falling off the guide rail by the translational movement of the T-shaped plate in the T-shaped slot.
9. A shaftless fire safety door according to claim 8, characterized in that: A roller is arranged at the bottom end of the T-shaped plate, and the translational movement of the door panel can be conveniently and quickly controlled by rolling the roller on the ground.
10. The fire safety door without shaft installation according to claim 1, characterized in that: The guide rail is provided with a groove for storing the roller, so as to prevent the roller from affecting the movement of the skateboard onto the guide rail.