Fire exit door with good buffering effect

Abstract

The utility model relates to the technical field of fire exit doors, in particular to a fire exit door with a good buffering effect, which comprises a fireproof door frame, a hinge is arranged on one side of the inner side wall of the fireproof door frame, the fireproof door frame is movably connected with the fire exit door through the hinge, and an anti-collision buffering assembly is arranged on the inner side of the top of the fireproof door frame. A buffer groove is formed in the side, close to the hinge, of the fireproof door frame, an anti-collision piece is slidably connected into the buffer groove, and when the fire exit door is opened emergently, the situation that the fire exit door and the fireproof door frame are loosened or damaged due to collision between the fire exit door and the fireproof door frame can be effectively avoided; according to the fire exit door, the stability and safety of the fire exit door in the using process are improved, when the fire exit door is closed vigorously, the situation that the fire exit door and the door closer are damaged due to overexertion can be effectively avoided, the protection and buffering effects of the fire exit door are improved, the structure is simple, the manufacturing cost is low, the service life of the fire exit door can be effectively prolonged, and the practicability is high. And the practical use value is high.

Description

Technical Field

[0001] The utility model relates to the technical field of fire doors, in particular to a fire door with good buffering effect. Background Art

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

[0003] The existing fire doors do not have a buffering effect. When the door is opened or closed urgently, the door body itself is easy to hit the door frame, and the door closer is easy to get stuck, which can easily cause damage to the fire door body and the door closer over a long period of time. At the same time, the existing fire doors on the market have poor buffering effects, relatively high construction costs, and certain limitations. Utility Model Content

[0004] The utility model aims to provide a fire door with good buffering effect for existing devices, so as to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A fire door with good buffering effect comprises a fireproof door frame, one side of the inner wall of the fireproof door frame is provided with a hinge, the fireproof door frame is movably connected to the fire door through the hinge, an anti-collision buffer component is provided on the inner side of the top of the fireproof door frame, the anti-collision buffer component comprises mounting plates symmetrically arranged at both ends of the inner side of the fireproof door frame, a force transmission plate with a long rectangular structure is hinged between the two mounting plates, a buffer plate parallel to the force transmission plate is provided on the outer side of the bottom of the force transmission plate, a plurality of evenly distributed first buffer springs are provided between the buffer plate and the force transmission plate, a plurality of equally distributed second buffer springs are provided on the outer side of the top of the force transmission plate, a buffer block is fixedly connected to the outer side of the second buffer spring, a buffer groove is provided on the side of the fireproof door frame close to the hinge, and an anti-collision part is slidably connected in the buffer groove.

[0007] As a preferred technical solution of the utility model, the anti-collision part includes a protective plate located on the outside of the buffer groove, and the inner side surface of the protective plate is fixedly connected to a fixing frame with a hollow rectangular structure, and a plurality of driving springs are arranged in the fixing frame, and one end of the driving spring is fixedly connected to the inner side surface of the protective plate, and the other end of the driving spring is fixedly connected to the bottom end surface of the buffer groove.

[0008] As a preferred technical solution of the utility model, the protective plate is in an arc-shaped structure and a protective cushion layer is provided on the surface.

[0009] As a preferred technical solution of the utility model, a stop block capable of limiting the displacement of the anti-collision component is provided at the end of the buffer groove.

[0010] As a preferred technical solution of the utility model, a rubber layer is provided on the outer end surface of the buffer plate.

[0011] As a preferred technical solution of the utility model, a door closer is installed between the fireproof door frame and the fire door.

[0012] As a preferred technical solution of the utility model, a counterweight block is provided on the side of the top of the force transmission plate away from the second buffer spring, which makes the force transmission plate tilt in a natural state, and limit rods are symmetrically provided on both sides of the bottom of the force transmission plate to limit the tilt angle of the force transmission plate.

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

[0014] In the natural state, due to the setting of the counterweight block, the anti-collision buffer assembly keeps the force transmission plate and the components fixedly connected to the force transmission plate in an inclined state, that is, the bottom of the force transmission plate is inclined at a certain angle in the opposite direction of the counterweight block. When the user closes the fire door with great force, the fire door hits the buffer plate on the inner side of the top of the fire door frame. The buffer plate is subjected to the impact force and thus squeezes the first buffer spring. The first buffer spring can buffer part of the impact force, and the other part of the impact force is transmitted to the bottom of the force transmission plate through the first buffer spring, so that the top of the force transmission plate flips in the opposite direction of the impact force and squeezes the second buffer spring. The second buffer spring buffers the impact force again. The double buffer structure of the first buffer spring and the second buffer spring improves the protection and buffering effect of the fire door. The fire door is then released and the user is able to use it to close the fire door without causing any damage to the door or the door closer. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a diagram showing the connection between a fire door and a fire door frame in the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of one of the anti-collision buffer components in the utility model;

[0017] Figure 3 This is a connection diagram of another fire door and fire door frame in the utility model;

[0018] Figure 4 It is a structural schematic diagram of another anti-collision buffer component in the utility model;

[0019] Figure 5 It is a cross-sectional connection diagram of the anti-collision member and the fireproof door frame of the utility model;

[0020] In the figure: 1. fire door frame; 11. buffer groove; 12. anti-collision member; 121. protective plate; 122. fixing frame; 123. driving spring; 13. stop block; 2. hinge; 3. fire door; 4. anti-collision buffer assembly; 401. mounting plate; 402. force transmission plate; 403. buffer plate; 404. first buffer spring; 405. second buffer spring; 406. buffer block; 407. counterweight block; 408. limit rod; 5. door closer. DETAILED DESCRIPTION

[0021] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0022] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0023] Example

[0024] Combination Figure 1-5The fire door with good buffering effect comprises a fire door frame 1, one side of the inner wall of the fire door frame 1 is provided with a hinge 2, the fire door frame 1 is movably connected with a fire door 3 through the hinge 2, an anti-collision buffer component 4 is provided on the inner side of the top of the fire door frame 1, and the anti-collision buffer component 4 comprises mounting plates 401 symmetrically arranged at both ends of the inner side of the fire door frame 1, a force transmission plate 402 with a long rectangular structure is hinged between the two mounting plates 401, a buffer plate 403 parallel to the force transmission plate 402 is provided on the outer side of the bottom of the force transmission plate 402, and the buffer plate 403 is provided with a plurality of holes. A rubber layer is provided on the outer end surface, and the rubber layer has good elasticity and compressibility, which can effectively reduce vibration and impact, thereby protecting the fire door 3 from damage. A plurality of evenly distributed first buffer springs 404 are provided between the buffer plate 403 and the force transmission plate 402, and a plurality of equally distributed second buffer springs 405 are provided on the outer side of the top of the force transmission plate 402. A buffer block 406 is fixedly connected to the outer side of the second buffer spring 405. A buffer groove 11 is provided on the side of the fire door frame 1 close to the hinge 2, and an anti-collision member 12 is slidably connected in the buffer groove 11.

[0025] Wherein, a door closer 5 is installed between the fireproof door frame 1 and the fire door 3 .

[0026] Furthermore, a counterweight block 407 is provided on one side of the top of the force transmission plate 402 away from the second buffer spring 405 to make the force transmission plate 402 tilt in a natural state, and limit rods 408 that can limit the tilt angle of the force transmission plate 402 are symmetrically provided on both sides of the bottom of the force transmission plate 402.

[0027] like Figure 5 The anti-collision component 12 shown in the figure includes a protective plate 121 located on the outside of the buffer groove 11, and the inner side surface of the protective plate 121 is fixedly connected to a fixing frame 122 with a hollow rectangular structure. Through the setting of the fixing frame 122, not only can the protective plate 121 be supported, but also the stability of the forward and backward displacement of the anti-collision component 12 in the buffer groove 11 is improved. A plurality of driving springs 123 are arranged in the fixing frame 122, and one end of the driving spring 123 is fixedly connected to the inner side surface of the protective plate 121, and the other end of the driving spring 123 is fixedly connected to the bottom end surface of the buffer groove 11.

[0028] According to a further optimization scheme, the protective plate 121 has an arc-shaped structure and a protective cushion layer is provided on the surface. The arc-shaped structure can weaken the sharpness of the edges and corners and reduce the damage caused by collision. The protective cushion layer can play a better protective isolation effect and prevent the fire door 3 and the protective door frame 1 from being damaged by collision.

[0029] Furthermore, a stop block 13 capable of limiting the displacement of the anti-collision component 12 is provided at the end of the buffer groove 11 .

[0030] Combination Figure 1-2As shown, in the natural state, due to the setting of the counterweight block 407, the anti-collision buffer component 4 keeps the force transmission plate 402 and the components fixedly connected to the force transmission plate 402 in an inclined state, that is, the bottom of the force transmission plate 402 is inclined at a certain angle in the opposite direction of the counterweight block 407. When the user closes the fire door 3 with great force, the fire door 3 hits the buffer plate 403 on the inner side of the top of the fire door frame 1. The buffer plate 403 is subjected to the impact force and thus squeezes the first buffer spring 404. The first buffer spring 404 can buffer part of the impact force, and the other part of the impact force is transmitted to the bottom of the force transmission plate 402 through the first buffer spring 404, so that the top of the force transmission plate 402 flips in the opposite direction of the impact force and squeezes the second buffer spring 405. The second buffer spring 405 buffers the impact force again. The dual buffer structure of the first buffer spring 404 and the second buffer spring 405 improves the protection and buffering effect of the fire door 3, and avoids the situation where excessive force is used when closing the fire door 3, resulting in damage to the fire door 3 and the door closer 5.

[0031] Combination Figure 3-4 As shown, when the user opens the fire door 3 in an emergency, the fire door 3 hits the protective plate 121 on the outside of the fire door frame 1 under the force, and the protective plate 121 is subjected to the impact force, thereby squeezing the driving spring 123 and driving the fixing frame 122 to slide in the buffer groove 11, and the driving spring 123 can buffer and unload the impact force, so that the fire door 3 first hits the protective plate 121 when it is opened with great force, effectively avoiding the fire door 3 from colliding with the fire door frame 1 after being opened in an emergency, thereby causing the fire door 3 to become loose or damaged with the fire door frame 1, thereby improving the stability and safety of the fire door 3 during use.

[0032] The working principle of a fire door with good buffering effect in the utility model:

[0033] In the natural state, due to the setting of the counterweight block 407, the anti-collision buffer component 4 keeps the force transmission plate 402 and the parts fixedly connected to the force transmission plate 402 in an inclined state, that is, the bottom of the force transmission plate 402 is inclined at a certain angle in the opposite direction of the counterweight block 407. When the user closes the fire door 3 with great force, the fire door 3 hits the buffer plate 403 on the inner side of the top of the fire door frame 1. The buffer plate 403 is subjected to the impact force and squeezes the first buffer spring 404. The first buffer spring 404 can buffer part of the impact force, and the other part of the impact force is transmitted to the bottom of the force transmission plate 402 through the first buffer spring 404, so that the top of the force transmission plate 402 turns over in the opposite direction of the impact force and squeezes the second buffer spring 405. The second buffer spring 405 buffers the impact force again. The double buffer structure of the second buffer spring 405 improves the protection and buffering effect of the fire door 3, and avoids the situation that the fire door 3 and the door closer 5 are damaged due to excessive force when closing the fire door 3; when the user opens the fire door 3 in an emergency, the fire door 3 hits the protective plate 121 on the outside of the fire door frame 1 under the force, and the protective plate 121 is subjected to the impact force to squeeze the driving spring 123 and drive the fixing frame 122 to slide in the buffer groove 11, and the driving spring 123 can buffer the impact force, so that the fire door 3 first hits the protective plate 121 when it is opened vigorously, effectively avoiding the fire door 3 from colliding with the fire door frame 1 after being opened in an emergency, thereby causing the fire door 3 to become loose or damaged with the fire door frame 1, and improving the stability and safety of the fire door 3 during use. The utility model has a simple structure and low manufacturing cost, can effectively extend the service life of the fire door, and has a high practical use value.

[0034] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model.

Claims

1. A fire door with good buffering effect, comprising a fire door frame (1), characterized in that: A hinge (2) is provided on one side of the inner wall of the fireproof door frame (1), and the fireproof door frame (1) is movably connected to a fire door (3) via the hinge (2). An anti-collision buffer component (4) is provided on the inner side of the top of the fireproof door frame (1), and the anti-collision buffer component (4) comprises mounting plates (401) symmetrically arranged at both ends of the inner side of the fireproof door frame (1), a force transmission plate (402) in a long rectangular structure is hinged between the two mounting plates (401), and a force transmission plate (402) having a corresponding structure is provided on the outer side of the bottom of the force transmission plate (402). A parallel buffer plate (403) is provided, a plurality of evenly distributed first buffer springs (404) are provided between the buffer plate (403) and the force transmission plate (402), a plurality of evenly distributed second buffer springs (405) are provided on the outer side of the top of the force transmission plate (402), a buffer block (406) is fixedly connected to the outer side of the second buffer spring (405), a buffer groove (11) is provided on the side of the fireproof door frame (1) close to the hinge (2), and an anti-collision member (12) is slidably connected in the buffer groove (11).

2. A fire door with good buffering effect according to claim 1, characterized in that: The anti-collision component (12) comprises a protective plate (121) located outside the buffer groove (11); a fixing frame (122) having a hollow rectangular structure is fixedly connected to the inner side of the protective plate (121); a plurality of driving springs (123) are arranged in the fixing frame (122); one end of the driving spring (123) is fixedly connected to the inner side of the protective plate (121); and the other end of the driving spring (123) is fixedly connected to the bottom end surface of the buffer groove (11).

3. A fire door with good buffering effect according to claim 2, characterized in that: The protective plate (121) is in an arc-shaped structure and a protective cushion layer is provided on the surface.

4. A fire door with good buffering effect according to claim 1, characterized in that: A stop block (13) capable of limiting the displacement of the anti-collision component (12) is provided at the end of the buffer groove (11).

5. A fire door with good buffering effect according to claim 1, characterized in that: A rubber layer is provided on the outer end surface of the buffer plate (403).

6. A fire door with good buffering effect according to claim 1, characterized in that: A door closer (5) is installed between the fireproof door frame (1) and the fire door (3).

7. A fire door with good buffering effect according to claim 1, characterized in that: A counterweight block (407) is provided on one side of the top of the force transmission plate (402) away from the second buffer spring (405) so as to cause the force transmission plate (402) to tilt in a natural state, and limiting rods (408) capable of limiting the tilt angle of the force transmission plate (402) are symmetrically provided on both sides of the bottom of the force transmission plate (402).

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