Earthquake-resistant steel door

Abstract

The utility model relates to an earthquake -resistant steel door, including door frame and door leaf, one side of door leaf is hinged with door frame, the door frame includes two opposite side door frames and the upper door frame and lower door frame connected with the upper end and lower end of two side door frames, the opposite side of two side door frames respectively with the front side of same side side door frame is close to the side of the side of two side door frames opposite, and is provided with first inclined side between, the left and right sides of door leaf close to two side door frames are provided with the second inclined side parallel with the first inclined side of same side, the opposite side of upper door frame and lower door frame respectively with the front side of upper door frame and lower door frame is close to the side of the side of upper door frame and lower door frame opposite, and is provided with third inclined side between, the upper and lower sides of door leaf close to upper door frame and lower door frame are provided with the fourth inclined side parallel with the third inclined side of same side.

Description

Technical Field

[0001] This utility model relates to the field of steel door technology, and in particular to an earthquake-resistant steel door. Background Technology

[0002] Steel doors are a type of door product that provides stability and heat insulation in daily life. With social development and technological progress, people have increasingly higher requirements for indoor safety and environment. Although traditional steel doors have a certain degree of pressure resistance, they are insufficient in terms of earthquake resistance.

[0003] To improve earthquake resistance, steel doors on the market have a buffer structure between the door leaf and the door frame. Through multiple buffering actions, the impact force on the door leaf is buffered. Although this improves the earthquake resistance of steel doors to a certain extent, the door leaf becomes difficult to open after the door leaf and door frame are deformed by external pressure. For example, Chinese utility model patent CN216277567U discloses a fire door with an earthquake-resistant structure, which includes an installation frame. The inner side of the installation frame is fixedly provided with a movable groove. The top and bottom of both sides of the movable groove are fixedly provided with connecting rods through a buffer mechanism. The door leaf is hinged inside the fixed frame.

[0004] The door leaf is hinged within a fixed frame. When the door leaf is closed, its top, bottom, left, and right sides contact the sides of the door frame. Under strong earthquake forces, when the door leaf and door frame deform, the door leaf gets stuck inside the door frame, preventing it from opening normally. Utility Model Content

[0005] The purpose of this utility model is to overcome the shortcomings of the prior art and provide an earthquake-resistant steel door, wherein the door leaf and the door frame are provided with parallel inclined sides, so that the door leaf is not affected by the deformation of the door frame when it is opened.

[0006] The objective of this utility model is achieved through the following technical solution:

[0007] An earthquake-resistant steel door includes a door frame and a door leaf. One side of the door leaf is hinged to the door frame. The door frame includes two opposite side door frames and an upper door frame and a lower door frame connected to the upper and lower ends of the two side door frames respectively. A first oblique side is provided between the front sides of the opposite sides of the two side door frames and the front sides of the same side door frame near the opposite sides of the two side door frames. A second oblique side parallel to the first oblique side is provided on the left and right sides of the door leaf near the two side door frames respectively. A third oblique side is provided between the front sides of the opposite sides of the upper and lower door frames and the front sides of the upper and lower door frames near the opposite sides of the upper and lower door frames respectively. A fourth oblique side parallel to the third oblique side is provided on the upper and lower sides of the door leaf near the upper and lower door frames respectively.

[0008] Furthermore, each of the two side door frames is provided with a first embedded mounting groove on the side of the front side of the first oblique side away from the side door frame on the same side, which opens toward the left and right sides of the door leaf, and a first sealing strip is provided in each first embedded mounting groove.

[0009] Furthermore, the upper and lower door frames are respectively provided with second embedded mounting grooves opening towards the upper and lower sides of the door leaf on the side of the third oblique side away from the front side of the upper and lower door frames, and each second embedded mounting groove is provided with a second sealing strip.

[0010] Furthermore, the left and right sides of the door leaf are respectively provided with stepped portions that are parallel to the front side of the side door frame on the same side and connected to the front side of the second inclined side on the same side, and the angle between the second inclined side and the stepped portion is 107 degrees.

[0011] Furthermore, it also includes a hinge, which includes a first fixing plate fixed to the door leaf and a second fixing plate fixed to the side door frame. The first fixing plate includes a front section of the first fixing plate that is parallel to and fixed to the rear side of the step and a rear section of the first fixing plate that is parallel to and fixed to the second oblique side.

[0012] Furthermore, the angle between the first oblique side and the front side of the same side door frame is 107 degrees.

[0013] Furthermore, the angle between the third oblique side and the front side of the upper or lower door frame is 107 degrees.

[0014] Furthermore, the distance between the first inclined side and the second inclined side is 7mm, and the distance between the third inclined side and the fourth inclined side is 7mm.

[0015] Furthermore, the door leaf is equipped with a push latch and an anti-theft chain, one end of which is located on the side of the door leaf near the hinge, and the other end of which is fixedly connected to the wall.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] Firstly, the two sides of the door frame facing each other are provided with a first oblique side facing the wall where the two door frames are connected. The left and right sides of the door leaf are provided with a second oblique side parallel to the first oblique side on the same side. The sides of the upper and lower door frames facing each other are provided with a third oblique side facing the wall where the upper and lower door frames are connected. The upper and lower sides of the door leaf are provided with a fourth oblique side parallel to the third oblique side on the same side. The second and fourth oblique sides are provided facing outwards from the door leaf. The first and third oblique sides on the door leaf are also provided along the outwards from the door leaf so that the door leaf can be opened outwards. Even if the door frame is deformed, the door leaf can still be opened outwards.

[0018] Secondly, the two door frames are equipped with first sealing strips along the vertical direction near the left and right sides of the door leaf, and the upper and lower door frames are equipped with second sealing strips along the horizontal direction near the upper and lower sides of the door leaf. After the door leaf is closed, the gap between the door leaf and the door frame is reduced, ensuring the sealing and sound insulation of the door leaf. Attached Figure Description

[0019] Figure 1 This is a front view of an earthquake-resistant steel door according to this utility model.

[0020] Figure 2 This is a top view of an earthquake-resistant steel door according to this utility model.

[0021] Figure 3 This is a partial top view of an earthquake-resistant steel door according to this utility model.

[0022] Figure 4 This is a left view of an earthquake-resistant steel door according to this utility model.

[0023] Figure 5 This is a partial left view of an earthquake-resistant steel door according to this utility model. Detailed Implementation

[0024] The present invention will be further described in detail below with reference to the embodiments shown in the accompanying drawings.

[0025] like Figures 1 to 5As shown, this embodiment provides an earthquake-resistant steel door, including a door frame 1 and a door leaf 2. One side of the door leaf 2 is hinged to the door frame 1. The door frame 1 includes two oppositely arranged side door frames 11 and 12, and an upper door frame 13 and a lower door frame 14 respectively connected to the upper and lower ends of the two side door frames 11 and 12. A first oblique side 31 is provided between the front sides of the opposite sides of the two side door frames 11 and 12 and the front sides of the same side door frame near the opposite sides of the two side door frames 11 and 12. The door leaf 2 The left and right sides of the door frames 11 and 12 are respectively provided with second oblique sides 32 parallel to the first oblique side 31 on the same side. The front sides of the opposite sides of the upper door frame 13 and the lower door frame 14 are respectively provided with third oblique sides 33 between the front sides of the upper door frame 13 and the lower door frame 14 and the sides opposite to the upper door frame 13 and the lower door frame 14. The upper and lower sides of the door leaf 2 near the upper door frame 13 and the lower door frame 14 are respectively provided with fourth oblique sides 34 parallel to the third oblique side 33 on the same side.

[0026] The two door frames 11 and 12 are respectively set on the left and right sides. The first oblique side 31 on the side door frame 11 extends from the right side of the side door frame 11 to the left side of the side door frame 11. The first oblique side 31 on the side door frame 12 extends from the left side of the side door frame 12 to the right side of the side door frame 12. The second oblique side 32 on the door leaf 2 is parallel to the first oblique side 31 on the same side. The first oblique side 31 on both the left and right sides extends in the opening direction of the door leaf 2, so that the door leaf 2 can be opened to the outside.

[0027] The third oblique side 33 on the upper door frame 13 extends from the lower side of the upper door frame 13 toward the upper side of the upper door frame 13, and the third oblique side 33 on the lower door frame 14 extends from the upper side of the lower door frame 14 toward the lower side of the lower door frame 14. The third oblique side 33 on both the upper and lower sides extends toward the opening direction of the door leaf 2, so that the door leaf 2 can be opened to the outside.

[0028] In this embodiment, the two door frames 11 and 12 are respectively provided with first embedded mounting grooves 41 that open to the left and right sides of the door leaf 2 on the side of the front side of the first oblique side 31 away from the same side of the side door frame. Each first embedded mounting groove 41 is provided with a first sealing strip 42. When the door leaf 2 is closed, the first sealing strips 42 on the two door frames 11 and 12 are sealed and matched with the left and right sides of the door leaf 2 in the vertical direction to improve the sealing performance of the door leaf.

[0029] In this embodiment, the upper door frame 13 and the lower door frame 14 are respectively provided with second embedded mounting grooves 51 that open toward the upper and lower sides of the door leaf 2 on the side of the third oblique side 33 away from the front side of the upper door frame 13 and the lower door frame 14. Each second embedded mounting groove 51 is provided with a second sealing strip 52. The second sealing strips 52 on the upper door frame 13 and the lower door frame 14 are in a horizontal sealing fit with the upper and lower sides of the door leaf 2 to improve the sealing performance of the door leaf.

[0030] In this embodiment, the left and right sides of the door leaf 2 are respectively provided with step portions 21 that are parallel to the front side of the side door frame on the same side and connected to the front side of the second inclined side 32 on the same side. The angle between the second inclined side 32 and the step portion 21 is 107 degrees.

[0031] In this embodiment, a hinge 6 is also included. The hinge 6 is a three-dimensional adjustable heavy-duty surface-mounted hinge, which facilitates the separation and installation of the door frame 1 and the door leaf 2, and ensures that the gap is adjusted to the optimal state after installation. The hinge 6 includes a first fixing plate 61 that is fixed to the door leaf 2 and a second fixing plate 62 that is fixed to the side door frame 12. The first fixing plate 61 includes a front section 611 that is parallel to and fixed to the rear side of the step portion 21 and a rear section 612 that is parallel to and fixed to the second inclined side 32.

[0032] In this embodiment, the angle between the first oblique side 31 and the front side of the side door frame 11 or 12 on the same side is 107 degrees, and the angle between the third oblique side 33 and the front side of the upper door frame 13 or lower door frame 14 is 107 degrees.

[0033] In this embodiment, the distance between the first oblique side 31 and the second oblique side 32 is 7mm, and the distance between the third oblique side 33 and the fourth oblique side 34 is 7mm. Even if the door frame 1 deforms during an earthquake, the door leaf 2 will remain at a certain distance from the door frame 1 without affecting the normal opening of the door leaf 2.

[0034] In this embodiment, the door leaf 2 is equipped with a push latch 22 and an anti-theft chain 23. The push latch 22 can be opened quickly by pressing it down in the direction of escape. One end of the anti-theft chain 23 is located on the side of the door leaf 2 near the hinge 6, and the other end of the anti-theft chain 23 is fixedly connected to the wall. When the door leaf 2 is tilted by external force, the anti-theft chain 23 pulls the door leaf 2 to prevent it from injuring people. At the same time, the anti-theft chain 23 further prevents the possibility of theft from the room on the basis of the push latch 22, protecting the safety of people and property.

[0035] The above description is merely a preferred embodiment of the present utility model and should not be construed as limiting the scope of the present utility model. Any simple equivalent changes and modifications made in accordance with the scope of the present utility model patent application and the description of the utility model shall still fall within the scope of the present utility model patent.

Claims

1. An earthquake-resistant steel door, comprising a door frame and a door leaf, wherein one side of the door leaf is hinged to the door frame, the door frame comprising two oppositely arranged side door frames and an upper door frame and a lower door frame respectively connected to the upper and lower ends of the two side door frames, characterized in that: A first oblique side is provided between the front sides of the two opposing side door frames and the front side of the same side door frame near the opposite side of the two side door frames. A second oblique side parallel to the first oblique side is provided on the left and right sides of the two side door frames. A third oblique side is provided between the front sides of the opposing side of the upper and lower door frames and the front side of the upper and lower door frames near the opposite side of the upper and lower door frames. A fourth oblique side parallel to the third oblique side is provided on the upper and lower sides of the door frame.

2. The earthquake-resistant steel door according to claim 1, characterized in that: The two side door frames are respectively provided with a first embedded mounting groove on the front side of the first oblique side away from the same side side door frame, which opens towards the left and right sides of the door leaf, and a first sealing strip is provided in each first embedded mounting groove.

3. The earthquake-resistant steel door according to claim 2, characterized in that: The upper and lower door frames are respectively provided with second embedded mounting grooves on the side of the third oblique side away from the front side of the upper and lower door frames, which open toward the upper and lower sides of the door leaf, and each second embedded mounting groove is provided with a second sealing strip.

4. The earthquake-resistant steel door according to claim 2, characterized in that: The left and right sides of the door leaf are respectively provided with stepped portions that are parallel to the front side of the side door frame on the same side and connected to the front side of the second inclined side on the same side. The angle between the second inclined side and the stepped portion is 107 degrees.

5. A steel door resistant to earthquakes according to claim 4, characterized in that: It also includes a hinge, which includes a first fixing plate fixed to the door leaf and a second fixing plate fixed to the side door frame. The first fixing plate includes a front section of the first fixing plate that is parallel to and fixed to the rear side of the step and a rear section of the first fixing plate that is parallel to and fixed to the second oblique side.

6. A steel door resistant to earthquakes according to claim 4, characterized in that: The angle between the first oblique side and the front side of the side door frame on the same side is 107 degrees.

7. The earthquake-resistant steel door according to claim 3, characterized in that: The angle between the third oblique side and the front side of the upper or lower door frame is 107 degrees.

8. A steel door resistant to earthquakes according to claim 6 or 7, characterized in that: The distance between the first inclined side and the second inclined side is 7mm, and the distance between the third inclined side and the fourth inclined side is 7mm.

9. A steel door resistant to earthquakes according to claim 5, characterized in that: The door is equipped with a push latch and an anti-theft chain. One end of the anti-theft chain is located on the side of the door near the hinge, and the other end of the anti-theft chain is fixedly connected to the wall.

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