Fireproof door with buffer mechanism

Abstract

The utility model discloses a fireproof door with a buffer mechanism, and relates to the technical field of fireproof door structures, the fireproof door comprises a fireproof door body and a door frame, one side of the fireproof door body is rotatably installed on the door frame through a hinge, a first groove is formed in the periphery of one side of the fireproof door body, and a convex structure is formed; the groove wall of the bottom side of the first groove is matched with one side of the door frame, and the side, away from the hinge, of the first groove is provided with a plurality of mounting holes and a sliding sleeve. According to the fireproof door, when the fireproof door body is closed, after the suction cup makes contact with the door frame, the suction cup and the hollow pipe slide along the sliding sleeve, the first spring is compressed at the same time, the buffering effect is achieved under the elastic force effect of the first spring, and when the hollow pipe slides to a certain position and makes contact with the blocking block, the blocking block blocks one end of the hollow pipe; the suction cups are attached to one side of the door frame, negative pressure is formed in the hollow pipes, the suction cups suck the door frame, closing of the fireproof door body is facilitated, and use is convenient and fast.

Description

Technical Field

[0001] The utility model relates to the technical field of fireproof door structures, in particular to a fireproof door with a buffer mechanism. Background Art

[0002] A fire door is a door that meets the requirements of fire resistance, stability, integrity and thermal insulation within a certain period of time and is convenient for escape. It is usually installed in fire compartments, evacuation stairwells and other locations. In addition to the functions of ordinary doors, fire doors are also convenient for escape and can ensure the evacuation of personnel within a certain period of time. In view of the problem that some fire doors are easily deformed and damaged after a collision and cannot prevent the spread of fire, fire doors are constantly being improved.

[0003] In the prior art, publication number CN218971035U discloses a fire door with a buffering function. By setting an arc-shaped soft plate, when the arc-shaped soft plate is hit by an external force, the connecting column slides inward in the long groove to form a buffering effect, thereby protecting the first fire plate and the second fire door from collision. In actual use, the fire door is affected by the buffering effect when closing, and the resistance of the fire door increases when closing, which makes it easy for the fire door to open in the opposite direction under the buffering effect, affecting the fire protection function. Therefore, we disclose a fire door with a buffering mechanism to meet people's needs. Utility Model Content

[0004] The purpose of the present application is to provide a fire door with a buffer mechanism to solve the problem raised in the above-mentioned background technology that in actual use, the fire door is affected by the buffering effect when closing, the resistance of the fire door increases when closing, and the fire door is easily opened in the opposite direction under the buffering effect, thereby affecting the fire protection function.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical solutions: a fire door with a buffer mechanism, comprising a fire door body and a door frame, one side of the fire door body being rotatably mounted on the door frame through a hinge, a first groove being provided around one side of the fire door body to form a convex structure, a bottom groove wall of the first groove matching one side of the door frame, a plurality of mounting holes being provided on a side of the first groove away from the hinge and being provided with a sliding sleeve, a plurality of the sliding sleeves being slidably mounted with a hollow tube at one end of each of the sliding sleeves, a suction cup being mounted at one end of the hollow tube, the suction cup being connected with the hollow tube, a first spring being sleeved on the hollow tube, one end of the first spring being mounted on one side of the suction cup, and the other end being mounted on one end of the sliding sleeve, a sliding block being slidably mounted on the other end of the sliding sleeve, a blocking block being mounted at one end of the sliding block, one end of the blocking block matching one end of the hollow tube, and an operating component being mounted at one side of the blocking block.

[0006] Preferably, the operating component includes a first wedge block, a second groove is provided on the side of the fire door body away from the first groove, one end of the sliding sleeve is located in the second groove, and a sliding groove is provided on one side of the sliding sleeve, the first wedge block is installed on the sliding block through a guide block, the guide block matches the sliding groove, a sliding sleeve is installed in the second groove, a sliding rod is slidably installed in the sliding sleeve, a plurality of second wedge blocks are installed on one side of the sliding rod, the inclined surface of the first wedge block matches the corresponding inclined surface of the second wedge block, a driving unit is installed on one side of the sliding rod, and a tightening unit is installed on the end of the sliding block away from the blocking block.

[0007] Preferably, the driving unit comprises a gear, a rotating shaft is mounted on the fire door body, the gear is sleeved on the rotating shaft, a rack is mounted on one side of the sliding rod, and the gear is meshed with the rack.

[0008] Preferably, handles are provided on both sides of the fire door body, and one side of the two handles is installed at one end corresponding to the rotating shaft.

[0009] Preferably, the tightening unit includes a second spring, a cover plate is installed on one side of the second groove, one end of the second spring is installed on one end of the slider, and the other end of the second spring is installed on one side of the cover plate, and the elastic force of the second spring is greater than the elastic force of the first spring.

[0010] Preferably, a ventilation groove is provided on one side of the sliding block.

[0011] Preferably, a sealing strip is installed on one side of the first groove, and one side of the sealing strip matches one side of the door frame.

[0012] In summary, the technical effects and advantages of the utility model are:

[0013] 1. In the utility model, when the fire door body is closed, a plurality of suction cups approach one side of the door frame. After the suction cups contact the door frame, the suction cups and the hollow tube slide along the sliding sleeve and compress the first spring at the same time. Under the elastic force of the first spring, the suction cups play a buffering role. When the hollow tube slides to a certain position, the suction cups contact the blocking block. The blocking block blocks one end of the hollow tube. The suction cups adhere to one side of the door frame and form a negative pressure in the hollow tube. The suction cups adsorb the door frame, which is beneficial to the closing of the fire door body and is convenient to use.

[0014] 2. In the utility model, the rotating shaft can be rotated by the handle, and the gears rotate synchronously. Under the meshing action, the rack and the slide bar can be moved downward, and the second wedge block moves downward with the slide bar, pushing the first wedge block to slide along the sliding sleeve with the guide block, and driving the blocking block to separate from one end of the hollow tube, so that gas enters the hollow tube, and the adsorption effect between the suction cup and the door frame is released, thereby facilitating the opening of the fire door body. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0017] Figure 2 It is a three-dimensional structural schematic diagram of another viewing angle of the utility model;

[0018] Figure 3 It is a schematic diagram of the partial cutaway structure of the gear area in the utility model;

[0019] Figure 4 It is a schematic diagram of the partial cross-section structure of the sliding sleeve area in the utility model.

[0020] In the figure: 1. fire door body; 2. first groove; 3. hinge; 4. sealing strip; 5. handle; 6. suction cup; 7. second groove; 8. sliding sleeve; 9. second spring; 10. sliding rod; 11. sliding sleeve; 12. second wedge block; 13. cover plate; 14. guide block; 15. first wedge block; 17. rack; 18. rotating shaft; 19. gear; 20. first spring; 21. hollow tube; 22. blocking block; 23. ventilation groove; 24. slider. DETAILED DESCRIPTION

[0021] 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.

[0022] Example: Reference Figure 1-4A fire door with a buffer mechanism is shown, comprising a fire door body 1 and a door frame, one side of the fire door body 1 is rotatably mounted on the door frame through a hinge 3, a first groove 2 is provided around one side of the fire door body 1 to form a convex structure, the bottom side groove wall of the first groove 2 matches one side of the door frame, a plurality of mounting holes are provided on the side of the first groove 2 away from the hinge 3 and a sliding sleeve 8 is installed, one end of the plurality of sliding sleeves 8 are all slidably mounted with a hollow tube 21, one end of the hollow tube 21 is mounted with a suction cup 6, the suction cup 6 is connected to the hollow tube 21, a first spring 20 is sleeved on the hollow tube 21, one end of the first spring 20 is mounted on one side of the suction cup 6, and the other end is mounted on one end of the sliding sleeve 8, a slider 24 is slidably mounted on the other end of the sliding sleeve 8, one end of the slider 24 is mounted with a blocking block 22, one end of the blocking block 22 matches one end of the hollow tube 21, and one side of the blocking block 22 is mounted with an operating component.

[0023] Based on the above structure, when the fire door body 1 is closed, multiple suction cups 6 approach one side of the door frame. After the suction cups 6 contact the door frame, the suction cups 6 and the hollow tube 21 slide along the sliding sleeve 8, and at the same time compress the first spring 20. Under the elastic force of the first spring 20, it plays a buffering role. When the hollow tube 21 slides to a certain position, it contacts the blocking block 22. The blocking block 22 blocks one end of the hollow tube 21. The suction cups 6 fit against one side of the door frame and form a negative pressure in the hollow tube 21. The suction cups 6 adsorb the door frame, which is beneficial to the closing of the fire door body 1 and is convenient to use.

[0024] like Figure 2-4 As shown, the operating assembly includes a first wedge block 15, a second groove 7 is provided on the side of the fire door body 1 away from the first groove 2, one end of the sliding sleeve 8 is located in the second groove 7, and a sliding groove is provided on one side of the sliding sleeve 8, the first wedge block 15 is installed on the slider 24 through a guide block 14, the guide block 14 matches the sliding groove, a sliding sleeve 11 is installed in the second groove 7, a sliding rod 10 is slidably installed in the sliding sleeve 11, a plurality of second wedge blocks 12 are installed on one side of the sliding rod 10, and the first wedge block 15 is installed on the slider 24 through a guide block 14, and the guide block 14 matches the sliding groove, a sliding sleeve 11 is installed in the second groove 7, a sliding rod 10 is slidably installed in the sliding sleeve 11, and a plurality of second wedge blocks 12 are installed on one side of the sliding rod 10, The inclined surface of block 15 matches the inclined surface of the corresponding second wedge block 12. A driving unit is installed on one side of the slide rod 10. A tightening unit is installed on the end of the slider 24 away from the blocking block 22. The second wedge block 12 moves downward with the slide rod 10, pushing the first wedge block 15 to slide along the sliding sleeve 8 with the guide block 14, and driving the blocking block 22 to separate from one end of the hollow tube 21, so that gas enters the hollow tube 21, releasing the adsorption effect between the suction cup 6 and the door frame, thereby facilitating the opening of the fire door body 1.

[0025] like Figure 4As shown, the driving unit includes a gear 19, a rotating shaft 18 is installed on the fire door body 1, the gear 19 is sleeved and installed on the rotating shaft 18, a rack 17 is installed on one side of the slide rod 10, the gear 19 is meshed with the rack 17, and the rotating shaft 18 and the gear 19 rotate synchronously. Under the meshing action, the rack 17 and the slide rod 10 can be moved downward to realize the driving function.

[0026] like Figure 1-3 As shown, handles 5 are provided on both sides of the fire door body 1. One side of the two handles 5 is installed at one end of the corresponding rotating shaft 18. By rotating the handles 5, the rotating shaft 18 can be rotated, thereby facilitating the opening of the fire door body 1.

[0027] like Figure 3 As shown, the tightening unit includes a second spring 9, a cover plate 13 is installed on one side of the second groove 7, one end of the second spring 9 is installed on one end of the slider 24, and the other end of the second spring 9 is installed on one side of the cover plate 13. The elastic force of the second spring 9 is greater than the elastic force of the first spring 20. The second spring 9 can push the slider 24 and the blocking block 22 to one side of the hollow tube 21, and can shrink and deform when affected by the second wedge block 12.

[0028] like Figure 4 As shown, a ventilation groove 23 is provided on one side of the sliding block 24 , and the ventilation groove 23 is provided to facilitate the external gas to quickly enter the sliding sleeve 8 .

[0029] like Figure 1 and 3 As shown, a sealing strip 4 is installed on one side of the first groove 2, and one side of the sealing strip 4 matches one side of the door frame. Through the setting of the sealing strip 4, it is convenient to increase the sealing between the fire door body 1 and the door frame, which is beneficial to fire prevention. At the same time, the sealing strip 4 plays a further buffering role and enhances the buffering effect.

[0030] Working principle of this utility model:

[0031] When the fire door body 1 is closed, multiple suction cups 6 approach one side of the door frame. After the suction cups 6 contact the door frame, the suction cups 6 and the hollow tube 21 slide along the sliding sleeve 8, and at the same time compress the first spring 20. Under the elastic force of the first spring 20, it plays a buffering role. When the hollow tube 21 slides to a certain position, it contacts the blocking block 22. The blocking block 22 blocks one end of the hollow tube 21. The suction cups 6 fit one side of the door frame and form a negative pressure in the hollow tube 21. The suction cups 6 adsorb the door frame, which is beneficial to the fire door. The closing of the main body 1 is convenient and easy to use. The handle 5 can be used to rotate the rotating shaft 18, and the gear 19 can rotate synchronously. Under the meshing action, the rack 17 and the slide rod 10 can be moved downward, and the second wedge block 12 moves downward with the slide rod 10, pushing the first wedge block 15 to slide along the sliding sleeve 8 with the guide block 14, and driving the blocking block 22 to separate from one end of the hollow tube 21, so that gas enters the hollow tube 21, and the adsorption effect between the suction cup 6 and the door frame is released, thereby facilitating the opening of the fire door main body 1.

[0032] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A fire door with a buffer mechanism, comprising a fire door body (1) and a door frame, characterized in that: One side of the fire door body (1) is rotatably mounted on the door frame via a hinge (3); a first groove (2) is provided on the periphery of one side of the fire door body (1) to form a convex structure; the bottom side groove wall of the first groove (2) matches one side of the door frame; a plurality of mounting holes are provided on the side of the first groove (2) away from the hinge (3) and a sliding sleeve (8) is installed; a hollow tube (21) is slidably installed at one end of each of the plurality of sliding sleeves (8); a suction cup (6) is installed at one end of the hollow tube (21); The suction cup (6) is connected to the hollow tube (21), and a first spring (20) is sleeved on the hollow tube (21). One end of the first spring (20) is mounted on one side of the suction cup (6), and the other end is mounted on one end of the sliding sleeve (8). A slider (24) is slidably mounted on the other end of the sliding sleeve (8), and a blocking block (22) is mounted on one end of the slider (24). One end of the blocking block (22) matches one end of the hollow tube (21), and an operating component is mounted on one side of the blocking block (22).

2. A fire door with a buffer mechanism according to claim 1, characterized in that: The operating component comprises a first wedge block (15), a second groove (7) is provided on the side of the fire door body (1) away from the first groove (2), one end of the sliding sleeve (8) is located in the second groove (7), and a sliding groove is provided on one side of the sliding sleeve (8), the first wedge block (15) is installed on the slider (24) through a guide block (14), the guide block (14) matches the sliding groove, a sliding sleeve (11) is installed in the second groove (7), a sliding rod (10) is slidably installed in the sliding sleeve (11), a plurality of second wedge blocks (12) are installed on one side of the sliding rod (10), the inclined surface of the first wedge block (15) matches the inclined surface of the corresponding second wedge block (12), a driving unit is installed on one side of the sliding rod (10), and a tightening unit is installed on the end of the slider (24) away from the blocking block (22).

3. A fire door with a buffer mechanism according to claim 2, characterized in that: The driving unit comprises a gear (19), a rotating shaft (18) is installed on the fire door body (1), the gear (19) is sleeved and installed on the rotating shaft (18), a rack (17) is installed on one side of the sliding rod (10), and the gear (19) is meshed with the rack (17).

4. A fire door with a buffer mechanism according to claim 3, characterized in that: Handles (5) are provided on both sides of the fire door body (1), and one side of the two handles (5) is installed at one end corresponding to the rotating shaft (18).

5. The fire door with a buffer mechanism according to claim 2, characterized in that: The tightening unit comprises a second spring (9), a cover plate (13) is installed on one side of the second groove (7), one end of the second spring (9) is installed on one end of the slider (24), and the other end of the second spring (9) is installed on one side of the cover plate (13), and the elastic force of the second spring (9) is greater than the elastic force of the first spring (20).

6. The fire door with a buffer mechanism according to claim 1, characterized in that: A ventilation groove (23) is provided on one side of the sliding block (24).

7. The fire door with a buffer mechanism according to claim 1, characterized in that: A sealing strip (4) is installed on one side of the first groove (2), and one side of the sealing strip (4) matches one side of the door frame.

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