Split type fireproof door

Abstract

The utility model belongs to the field of fireproof doors, and particularly relates to a split type fireproof door which comprises a door frame, a first fireproof door body and a second fireproof door body are hinged to the inner side of the door frame, a pressing strip is fixedly connected to the side, close to the second fireproof door body, of the first fireproof door body, and a rubber strip is fixedly connected to the inner side of the pressing strip. The rubber strip is slidably connected with the first fireproof door and the second fireproof door, a sliding groove is fixedly connected to the front face of the first fireproof door, and a fixing shaft is fixedly connected to the front face of the second fireproof door. According to the fireproof door, the pressing strip with the rubber strip is arranged on one fireproof door, after the fireproof door is closed, the rubber strip is located at the position of the door gap between the two fireproof doors, then the sliding groove is formed in one fireproof door, the rotatable locking strip with the inclined face is arranged on the other fireproof door, and when the locking strip rotates to the sliding groove, the locking strip can rotate to the sliding groove. And due to the interaction between the inclined surface and the sliding groove, the adhesive tape is subjected to extrusion force, so that the door crack is sealed, and the sealing performance of the fireproof door is improved.

Description

Technical Field

[0001] The utility model relates to the field of fireproof doors, in particular to a double-opening fireproof door. Background Art

[0002] Open fire doors are a common fire safety facility that can isolate the spread of fire and protect the lives and property of people when a fire occurs. For example, the utility model patent with the authorization announcement number CN210343155U proposes a double-leaf fire door with a window, including a door frame and a fire door panel, wherein the fire door panel is provided with two fire door panels that are rotatably connected to the door frame to form a double-leaf door, the fire door panel is fixedly connected to a circular window frame, and the circular inner wall of the circular window frame is symmetrically fixedly connected to two circular visual glass panels, and the two circular visual glass panels are fixedly connected to the outer side of the sealing sleeve.

[0003] However, there is a large door gap between the two doors of the existing double-leaf fireproof door, resulting in insufficient sealing at the door gap. Therefore, it is necessary to improve it. Utility Model Content

[0004] The utility model aims to provide a double-leaf fireproof door, which solves the problem of a large door gap between two doors of the existing double-leaf fireproof door, resulting in insufficient sealing at the door gap.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a double-leaf fire door, comprising a door frame, wherein fire door one and fire door two are hingedly connected on the inner side of the door frame, a pressure strip is fixedly connected to the side of fire door one close to fire door two, a rubber strip is fixedly connected to the inner side of the pressure strip, and the rubber strip is slidably connected to both fire door one and fire door two, a slide groove is fixedly connected to the front side of fire door one, a fixed shaft is fixedly connected to the front side of fire door two, a lock strip is installed on the outer side of the shaft body of the fixed shaft through a bearing, and the horizontal part of the lock strip is slidably connected to the slide groove.

[0006] Preferably, the locking bar is L-shaped, and a slope is provided on the horizontal portion. The slope is provided on the locking bar, so that the slide groove is subjected to a squeezing force after the locking bar enters the slide groove.

[0007] Preferably, a handle is fixedly connected to the front of the vertical portion of the lock bar, and the handle is made of plastic. The lock bar can be easily rotated by setting the handle.

[0008] Preferably, a fixing sleeve is fixedly connected to the front of the second fire door and below the lock bar, a locking pin is slidably connected to the inner side of the fixing sleeve, the locking pin is slidably connected to the vertical part of the lock bar, and a spring is arranged on the inner side of the fixing sleeve. The lock bar can be locked by the arrangement of the locking pin.

[0009] Preferably, one end of the spring is fixedly connected to the locking pin, and the other end of the spring is fixedly connected to the inner surface of the fixing sleeve. By setting the spring, the elastic force can be applied to the locking pin.

[0010] Preferably, a lever is fixedly connected to the middle section of the pin body of the locking pin, and the lever passes through the fixing sleeve and is slidably connected to the fixing sleeve. The setting of the lever facilitates the locking pin to be moved.

[0011] Preferably, a rubber bead is clamped inside the fire door 1, and the end of the rubber bead is fixedly connected to a lower stop bar, and the lower stop bar is in contact with the fire door 1. The setting of the lower stop bar has a blocking effect on the bottom of the fire door.

[0012] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0013] 1. The utility model provides a pressure strip with a rubber strip on one of the fire doors. After the fire door is closed, the rubber strip is located at the door gap between the two fire doors. Then, a slide groove is provided on one of the fire doors, and a rotatable lock strip with an inclined surface is provided on the other fire door. During the process of the lock strip rotating to the slide groove, the rubber strip is subjected to an extrusion force due to the interaction between the inclined surface and the slide groove, thereby sealing the door gap and improving the sealing performance of the fire door.

[0014] 2. The utility model provides a fixing sleeve, a locking pin, a spring, a lever and other components on a fire door with a lock bar, and utilizes the elastic force of the spring to insert the locking pin into the lock bar from the bottom to lock the lock bar, thereby further ensuring the sealing of the fire door after closing. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional diagram of the overall structure of the utility model;

[0016] Figure 2 For the utility model Figure 1 The right side cross-sectional view of the local structure;

[0017] Figure 3 For the utility model Figure 1 A bottom-up cross-sectional view of a local structure;

[0018] Figure 4 For the utility model Figure 1 A three-dimensional diagram of the lock strip structure.

[0019] In the figure: 1. Door frame; 2. Fire door 1; 3. Fire door 2; 4. Pressure strip; 5. Rubber strip; 6. Slide groove; 7. Fixed shaft; 8. Locking strip; 9. Handle; 10. Fixed sleeve; 11. Locking pin; 12. Spring; 13. Push rod; 14. Lower gear strip; 15. Rubber bead. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-4 A double-leaf fire door comprises a door frame 1, a fire door 1 2 and a fire door 2 3 are hinged on the inner side of the door frame 1, a pressure strip 4 is fixedly connected to the side of the fire door 1 2 close to the fire door 2 3, a rubber strip 5 is fixedly connected to the inner side of the pressure strip 4, and the rubber strip 5 is slidably connected to both the fire door 1 2 and the fire door 2 3, a slide groove 6 is fixedly connected to the front of the fire door 1 2, a fixed shaft 7 is fixedly connected to the front of the fire door 2 3, a lock bar 8 is installed on the outer side of the shaft body of the fixed shaft 7 through a bearing, and the horizontal part of the lock bar 8 is slidably connected to the slide groove 6. The lock bar 8 is L-shaped, and an inclined surface is provided on the horizontal part. By providing an inclined surface on the lock bar 8, after the lock bar 8 enters the slide groove 6, the slide groove 6 is subjected to an extrusion force. A handle 9 is fixedly connected to the front of the vertical part of the lock bar 8, and the handle 9 is made of plastic. The handle 9 is provided to facilitate the rotation of the lock bar 8.

[0022] See also Figure 1-2 A fixed sleeve 10 is fixedly connected to the front of the fire door 23 and below the lock bar 8. A locking pin 11 is slidably connected to the inner side of the fixed sleeve 10. The locking pin 11 is slidably connected to the vertical part of the lock bar 8. A spring 12 is arranged on the inner side of the fixed sleeve 10. By setting the locking pin 11, the lock bar 8 can be locked. One end of the spring 12 is fixedly connected to the locking pin 11, and the other end of the spring 12 is fixedly connected to the inner surface of the fixed sleeve 10. By setting the spring 12, elastic force can be applied to the locking pin 11. A lever 13 is fixedly connected to the middle section of the pin body of the locking pin 11. The lever 13 passes through the fixed sleeve 10 and is slidably connected to the fixed sleeve 10. By setting the lever 13, it is convenient to move the locking pin 11.

[0023] See also Figure 1-3 The fire door 2 is internally clamped with a rubber bead 15, and the end of the rubber bead 15 is fixedly connected with a lower stop bar 14, and the lower stop bar 14 is in contact with the fire door 2. The setting of the lower stop bar 14 has a blocking effect on the bottom of the fire door.

[0024] The specific implementation process of the utility model is as follows: when in use, first the fire door 1 2 and the fire door 2 3 are closed normally, at this time the rubber strip 5 is located at the door gap between the fire door 1 2 and the fire door 2 3, then the lock strip 8 is rotated by the handle 9, and the end of the lock strip 8 with the inclined surface slides into the slide groove 6, with the interaction between the inclined surface and the slide groove 6, the fire door 1 2 is subjected to an extrusion force, so that the rubber strip 5 is squeezed, which can seal the door gap and improve the sealing of the fire door, and then the locking pin 11 is pulled by the lever 13, so that the locking pin 11 is inserted into the lock strip 8 from the bottom, the lock strip 8 is locked, and the sealing of the fire door after closing is further ensured.

[0025] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A double-leaf fire door, comprising a door frame (1), characterized in that: The inner side of the door frame (1) is hinged with a fire door 1 (2) and a fire door 2 (3); a pressure strip (4) is fixedly connected to a side of the fire door 1 (2) close to the fire door 2 (3); a rubber strip (5) is fixedly connected to the inner side of the pressure strip (4); and the rubber strip (5) is slidably connected to both the fire door 1 (2) and the fire door 2 (3); a slide groove (6) is fixedly connected to the front side of the fire door 1 (2); a fixed shaft (7) is fixedly connected to the front side of the fire door 2 (3); a lock strip (8) is installed on the outer side of the shaft body of the fixed shaft (7) via a bearing, and the horizontal part of the lock strip (8) is slidably connected to the slide groove (6).

2. A double-leaf fire door according to claim 1, characterized in that: The locking bar (8) is L-shaped, and a slope is provided on the horizontal portion.

3. A double-leaf fire door according to claim 1, characterized in that: A handle (9) is fixedly connected to the front side of the vertical portion of the locking bar (8), and the handle (9) is made of plastic.

4. The double-leaf fire door according to claim 1, characterized in that: A fixing sleeve (10) is fixedly connected to the front of the second fire door (3) and below the locking strip (8); a locking pin (11) is slidably connected to the inner side of the fixing sleeve (10); the locking pin (11) is slidably connected to the vertical portion of the locking strip (8); and a spring (12) is provided on the inner side of the fixing sleeve (10).

5. A double-leaf fire door according to claim 4, characterized in that: One end of the spring (12) is fixedly connected to the locking pin (11), and the other end of the spring (12) is fixedly connected to the inner surface of the fixing sleeve (10).

6. A double-leaf fire door according to claim 4, characterized in that: A middle section of the pin body of the locking pin (11) is fixedly connected to a lever (13), and the lever (13) passes through the fixing sleeve (10) and is slidably connected to the fixing sleeve (10).

7. The double-leaf fire door according to claim 1, characterized in that: A rubber bead (15) is clamped inside the fire door (2), and the end of the rubber bead (15) is fixedly connected to a lower stop bar (14), and the lower stop bar (14) is in contact with the fire door (2).

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