Anti-seismic escape door with door frame deformed to be normally opened

Abstract

The application discloses an anti-seismic escape door capable of being normally opened after deformation of a door frame, and relates to the technical field of doors and windows. The anti-seismic escape door comprises a door frame and a door body rotatably connected with the door frame. The door body comprises an inner support frame, and a door hole is arranged in the middle of the inner support frame. The door body further comprises a first door plate and a second door plate which are arranged in the door hole and can be opened. The inner support frame comprises one horizontal support assembly arranged above and below and one vertical support assembly arranged left and right. The horizontal support assembly arranged above is connected with the top of the first door plate through a plurality of first connecting pieces, and the horizontal support assembly arranged below is connected with the bottom of the second door plate through a plurality of first connecting pieces. The first door plate and the second door plate are connected through a second connecting piece. When an earthquake occurs, if the door body cannot be normally opened due to falling objects or deformation of the door frame, personnel can release the locking of the second connecting piece, open the first door plate and / or the second door plate to escape, avoid the escape door from blocking the escape passage, and improve the survival probability of the personnel.

Description

Technical Field

[0001] This invention relates to the field of door and window technology, specifically to an earthquake-resistant escape door whose frame can be deformed and still be opened normally. Background Technology

[0002] In recent years, earthquakes have occurred frequently across the country, causing widespread damage to buildings. During an earthquake, escape doors often become deformed or blocked by fallen obstacles, trapping people inside.

[0003] Currently, most escape doors improve their resistance to deformation by increasing the strength of the door frame, thereby preventing the door panel from deforming and achieving earthquake resistance. However, these escape doors still have safety hazards. For example, when the deformation force exceeds the resistance, the door frame may still deform, making the door unable to open. Or, earthquake debris may fall around the escape door and jam the door, preventing it from opening properly and making it difficult for people to evacuate. Summary of the Invention

[0004] In order to overcome the problem in the above-mentioned background technology that "traditional escape doors cannot be opened when the door frame is deformed or there are falling objects obstructing the door, resulting in difficulties in personnel evacuation", the present invention provides an earthquake-resistant escape door that can be opened normally when the door frame is deformed due to an earthquake or when there are obstacles blocking the door, thus providing conditions for personnel to escape.

[0005] The technical solution adopted by the present invention to solve the above-mentioned technical problems is: an earthquake-resistant escape door that can be opened normally despite door frame deformation, comprising a door frame and a door body rotatably connected to the door frame; the door body includes an inner support frame, and a door opening is provided in the middle of the inner support frame; the door body also includes a first door panel and a second door panel installed in the door opening and capable of being opened; the inner support frame includes one horizontal support assembly at the top and bottom and one vertical support assembly at the left and right; the upper horizontal support assembly is connected to the top of the first door panel through several first connectors, and the lower horizontal support assembly is connected to the bottom of the second door panel through several first connectors; the first door panel and the second door panel are connected by a second connector.

[0006] As a further optimization of the present invention, the horizontal support component and the vertical support component are fixedly connected in a U-shape.

[0007] As a further optimization of the present invention, the cross brace assembly is provided with a longitudinal mounting hole, and the first connector is disposed in the mounting hole.

[0008] As a further optimization of the present invention, the first connecting member includes a fixing card, a sleeve, a first column, a spring, a second column, a stop plate, and a hinge.

[0009] As a further optimization of the present invention, the mounting hole is provided with an expansion hole and a sleeve hole, the fixing card is placed in the expansion hole, and the sleeve is placed in the sleeve hole.

[0010] As a further optimization of the present invention, the fixing card is fixedly connected to the sleeve; the first column, the spring and the second column are all placed inside the sleeve, and the two ends of the spring abut against the bottom of the first column and the top of the second column respectively; the bottom of the second column is connected to the stop plate; the stop plate is connected to the hinge.

[0011] As a further optimization of the present invention, the stop plate is connected to the first door panel or the second door panel.

[0012] As a further optimization of the present invention, the second connector includes a first locking member, a second locking member, and a locking post; the first locking member has a first locking hole, the second locking member has a second locking hole, the first locking hole is penetratingly connected to the locking post, and the second locking hole is penetratingly connected to the locking post and engaged.

[0013] As a further optimization of the present invention, the first locking hole and the second locking hole are coaxially arranged.

[0014] As a further optimization of the present invention, the first locking member and the second locking member are connected by an inclined surface.

[0015] In summary, the advantages of this invention are: an earthquake-resistant escape door that can be opened normally despite frame deformation, comprising a door frame and a door body rotatably connected to the door frame; the door body includes an inner support frame with a door opening in the middle; the door body also includes a first door panel and a second door panel installed in the door opening and capable of being opened; the inner support frame includes one horizontal support assembly at the top and bottom and one vertical support assembly on the left and right; the upper horizontal support assembly is connected to the top of the first door panel via several first connectors, and the lower horizontal support assembly is connected to the bottom of the second connector via several first connectors; the first door panel and the second door panel are connected by a second connector. During an earthquake, if the door cannot be opened normally due to falling debris (e.g., falling rocks) or frame deformation, personnel can release the lock of the second connector and open the first door panel and / or the second door panel to escape, preventing the escape door from blocking the escape route and increasing the chances of survival. Attached Figure Description

[0016] The present application will be further explained below with reference to the accompanying drawings:

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0018] Figure 2 This is a schematic diagram of the door structure;

[0019] Figure 3 This is a schematic diagram of an internally supported frame structure.

[0020] Figure 4 Front view of the installation structure of the first door panel, the second door panel, and the internal support frame;

[0021] Figure 5 Side view of the installation structure of the first door panel, the second door panel, and the inner support frame;

[0022] Figure 6 This is a schematic diagram of the first connecting component;

[0023] Figure 7 Schematic diagram of the contact structure between the stop plate and the cross brace assembly;

[0024] Figure 8 Schematic diagram of the separation structure between the stop plate and the cross brace assembly;

[0025] Figure 9 This is a schematic diagram showing the location of the gap;

[0026] Figure 10 This is an enlarged schematic diagram of the notch structure;

[0027] Figure 11 This is a side view of the second connector.

[0028] Figure 12 This is a schematic diagram of the structure of the first inclined surface and the first adapting inclined surface;

[0029] Figure 13 This is a schematic diagram of the second inclined surface and the second adapting inclined surface structure.

[0030] Figure 14 This is a schematic diagram of the second column detachment structure;

[0031] Figure 15 This is a schematic diagram of a tension spring flipping structure.

[0032] Explanation of reference numerals in the attached figures:

[0033] In the diagram, 1 is the door frame; 2 is the door body; 21 is the inner support frame; 210 is the door opening; 2101 is the side rotation axis; 211 is the cross brace assembly; 21101 is the expansion hole; 21102 is the socket hole; 2111 is the extension fin; 212 is the vertical support assembly; 2121 is the first adapting inclined surface; 2122 is the second adapting inclined surface; 213 is the door handle; 22 is the first door panel; 220 is the notch; 221 is the first inclined surface; 23 is the second door panel; 231 is the second door panel. 1. Second inclined surface; 3. First connecting piece; 31. Fixing clip; 32. Sleeve; 33. Column; 34. Spring; 35. Second column; 351. Connecting bolt; 36. Stop plate; 37. Hinge; 4. Second connecting piece; 41. First locking piece; 4101. Third inclined surface; 411. First locking hole; 42. Second locking piece; 4201. Fourth inclined surface; 421. Second locking hole; 422. Annular groove; 43. Locking post. Detailed Implementation

[0034] Based on the above-described structural features of this application, the implementation methods of this application will be further described as follows:

[0035] Reference Figures 1-2 This embodiment provides an earthquake-resistant escape door that can be opened normally despite frame deformation, including a door frame 1 and a door body 2 rotatably connected to the door frame 1; the door body 2 includes an inner support frame 21, with a door opening 210 in the middle of the inner support frame 21; the door body 2 also includes a first door panel 22 and a second door panel 23 installed in the door opening 210 and capable of being opened. The door frame 1 is U-shaped and is fixedly connected (e.g., welded) by four load-bearing rods (e.g., square tubes). During an earthquake, the door frame 1 bears the load first, thereby protecting the door body 2. The first door panel 22 is positioned above the second door panel 23.

[0036] Reference Figure 1 The door body 2 has a side rotation shaft 2101 on its side edge, which is connected to the door frame 1. The fixed end of the side rotation shaft 2101 is fixedly connected to the door frame 1 by bolts, and the movable end of the side rotation shaft 2101 is fixedly connected to the door body 2 by bolts. The door body 2 can rotate around the side rotation shaft 2101 to open and close the door body 2.

[0037] Reference Figures 3-5The inner support frame 21 includes one horizontal support assembly 211 at the top and one vertical support assembly 212 at the bottom and one vertical support assembly 212 at the top and bottom. The two horizontal support assemblies 211 are arranged parallel to each other, and the two vertical support assemblies 212 are arranged parallel to each other, while the horizontal support assemblies 211 and vertical support assemblies 212 are arranged perpendicular to each other. The horizontal support assemblies 211 and 212 are fixedly connected in a U-shape (e.g., by welding or bolts). The upper horizontal support assembly 211 is connected to the top of the first door panel 22 by several first connectors 3, and the lower horizontal support assembly 211 is connected to the bottom of the second door panel 23 by several first connectors 3; the first door panel 22 and the second door panel 23 are connected by second connectors 4.

[0038] Reference Figures 4-7 The cross brace assembly 211 has a longitudinal mounting hole, which is a through hole and arranged longitudinally. The first connector 3 is disposed in the mounting hole. The first connector 3 includes a fixing clip 31, a sleeve 32, a first column 33, a spring 34, a second column 35, a stop plate 36, and a hinge 37. The mounting hole has an expansion hole 21101 and a socket hole 21102. The fixing clip 31 is placed in the expansion hole 21101, and the outer edge of the fixing clip 31 is in contact with the inner surface of the expansion hole 21101. The sleeve 32 is placed in the socket hole 21102, and the outer side wall of the sleeve 32 is in contact with the inner side wall of the socket hole 21102. The diameter of the fixing clip 31 is larger than the diameter of the socket hole 21102, so that the fixing clip 31 is limited within the expansion hole 21101 and cannot be dislodged in the direction of the socket hole 21102.

[0039] Reference Figures 6-7 The fixing card 31 is fixedly connected to the sleeve 32 (e.g., by integral molding or by bolts); the first column 33, spring 34, and second column 35 are all placed inside the sleeve 32, with the two ends of the spring 34 abutting against the bottom of the first column 33 and the top of the second column 35, respectively. The bottom of the second column 35 is connected to the stop plate 36; the stop plate 36 is connected to the hinge 37. The stop plate 36 has a first through hole, and the hinge 37 has a second through hole, which are coaxially arranged; the second column 35 and the stop plate 36 are connected by a connecting bolt 351, which includes a head and a stud fixedly connected to the head. The end of the stud away from the head has an external thread structure, and the end face of the second column 35 away from the spring 34 has a threaded hole. The external thread structure is placed in the threaded hole and fixedly connected to each other through the threaded structure. Both the first through hole and the second through hole are fitted onto the surface of the stud. The stud head is pressed against the hinge 37. The stud head can apply pressure to the hinge 37 in the direction of the second column 35, so that the hinge 37 is attached and abuts against the surface of the stop plate 36, and the stop plate 36 is attached and abuts against the surface of the cross brace assembly 211.

[0040] The stop plate 36 is connected to either the first door panel 22 or the second door panel 23. (See reference...) Figures 4-7 The upper cross brace assembly 211 is connected to the top of the first door panel 22 via several first connectors a3a. The hinges 37 of the first connectors a3a are bolted to the top of the first door panel 22, and the hinges 37 of the first connectors a3a are inserted into the interior of the first door panel 22. The lower cross brace assembly 211 is connected to the bottom of the second door panel 23 via several first connectors b3b. The hinges 37 of the first connectors b3b are bolted to the bottom of the second door panel 23, and the hinges 37 of the first connectors b3b are inserted into the interior of the second door panel 23.

[0041] Reference Figures 7-9 Spring 34 can be either a tension spring or a compression spring. When spring 34 is a compression spring, after the second connecting piece is unlocked, the compression spring transmits thrust through the second column 35, the stop plate 36, and the hinge 37 to the first door panel 22 / second door panel 23, allowing the first door panel 22 / second door panel 23 to deflect out of the door opening 210. The two ends of the compression spring abut against the first column 33 and the second column 35 respectively, and the fixing clip 31 is fixedly installed in the expansion hole 21101 (e.g., by bolts). When spring 34 is a tension spring, after the second connecting piece is unlocked, the first door panel 22 / second door panel 23 needs to be manually pulled to allow the first door panel 22 / second door panel 23 to deflect out of the door opening 210. The two ends of the tension spring are connected to the first column 33 and the second column 35 respectively (e.g., the column 33 has a through hole, and the end of the spring 34 is inserted into the through hole) to realize the tension transmission function of the tension spring.

[0042] Reference Figure 5 and 11 The second connecting member 4 includes a first locking member 41, a second locking member 42, and a locking post 43. The first locking member 41 has a first locking hole 411, and the second locking member 42 has a second locking hole 421. The first locking hole 411 and the second locking hole 421 are coaxially arranged. The first locking hole 411 is a longitudinally arranged through hole, and the second locking hole 421 is a longitudinally arranged through hole or a blind hole. The first locking hole 411 is penetratingly connected to the locking post 43, and the second locking hole 421 is penetratingly connected to and snapped into the locking post 43. The lower part of the second locking hole 421 has an annular groove 422, and the lower part of the locking post 43 has an annular protrusion adapted to the annular groove 422. The annular protrusion and the annular groove 422 interlock to achieve the detachable connection between the locking post 43 and the second locking member 42. Both the first locking member 41 and the second locking member 42 are located on the same side of the first door panel 22 and the second door panel 23. The first locking member 41 is fixedly connected to the lower edge of the first door panel 22 by bolts, and the second locking member 42 is fixedly connected to the upper edge of the second door panel 23 by bolts. When the locking pin 43 is inserted into the first locking hole 411 and the second locking hole 421, the second connecting member 4 is locked; when the locking pin 43 is pulled out from the first locking hole 411 and the second locking hole 421, the second connecting member 4 is unlocked.

[0043] Reference Figures 11-13 The first door panel 22 and the second door panel 23 are connected by an inclined surface, and the first locking member 41 and the second locking member 42 are connected by an inclined surface. The first door panel 22 has a first inclined surface 221 at one edge near the second door panel 23, and the second door panel 23 has a second inclined surface 231 at one edge near the first door panel 22; the first locking member 41 has a third inclined surface 4101 at one edge near the second locking member 42, and the second locking member 42 has a fourth inclined surface 4201 at one edge near the first locking member 41. When the first door panel 22 and the second door panel 23 are both closed and installed inside the inner support frame 21, the first inclined surface 221 and the second inclined surface 231 are in contact with each other, and the third inclined surface 4101 and the fourth inclined surface 4201 are in contact with each other. The first inclined surface 221, the second inclined surface 231, the third inclined surface 4101, and the fourth inclined surface 4201 are all located on the same plane, so that the first door panel 22 and the second door panel 23 can be opened smoothly.

[0044] Reference Figure 12 The upper part of the inner wall of the support assembly 212 is provided with a first adapting inclined surface 2121, and the lower part of the inner wall of the support assembly 212 is provided with a second adapting inclined surface 2122. The inclination directions of the first adapting inclined surface 2121 and the second adapting inclined surface 2122 are opposite. The left and right edges of the first door panel 22 are respectively provided with chamfer structures adapted to the first adapting inclined surface 2121, and the left and right edges of the second door panel 23 are respectively provided with chamfer structures adapted to the second adapting inclined surface 2122, so as to reduce the friction between the first door panel 22 and the support assembly 212 when the first door panel 22 is opened, and reduce the friction between the second door panel 23 and the support assembly 212 when the second door panel 23 is opened.

[0045] Reference Figure 3 A door handle 213 is fixedly installed in the middle of the support assembly 212 by bolts, and the door handle 213 is arranged longitudinally.

[0046] Reference Figure 5 and 11 When installing this invention, the second connector 4 is installed on the inside of the door (i.e., the indoor space side) to ensure anti-theft performance.

[0047] When no earthquake occurs, this invention is in the off state, see reference. Figure 4 , 711. The first door panel 22 and the second door panel 23 are fastened into the door opening 210. The first door panel 22 and the second door panel 23 are arranged parallel to each other and are locked together by the second connector 4. The locking pin 43 is inserted into the first locking hole 411 and the second locking hole 421, and the annular protrusion and the annular groove 422 are engaged with each other. At this time, a pedestrian can grab the door handle 213 and push the door body 2 to rotate along the side rotation axis 2101, so that the present invention can realize the opening and closing function of a traditional door.

[0048] If no falling debris (such as rocks) is generated in the earthquake environment and the door frame 1 is not deformed during an earthquake, people can push the door handle 213 to open the door 2 normally and then escape.

[0049] If no falling debris (such as falling rocks) is generated in the earthquake environment during an earthquake and the door frame 1 is deformed so that the door 2 cannot be opened normally, people can pull out the locking pin 43, release the lock of the second connecting piece 4, push the second door panel 23 outward to open (or pull the first door panel 22 inward to open) and then escape.

[0050] If, during an earthquake, debris (such as falling rocks) is generated in the earthquake environment and falls behind door 2, preventing door 2 from opening normally and the second door panel 23 from being pushed outward, people can pull out the locking pin 43 to release the lock of the second connecting piece 4, pull the first door panel 22 inward to open it, and then escape.

[0051] If, during an earthquake, debris (such as falling rocks) is generated in the earthquake environment and falls behind the door 2, the door frame 1 will deform, causing the door 2 to be unable to open normally and the second door panel 23 to be unable to be pushed outward. People can pull out the locking pin 43, release the lock of the second connecting piece 4, pull the first door panel 22 inward to open it, and then escape.

[0052] Reference Figure 9 and 10 The top of the first door panel 22 has a notch 220 at the edge of the stop plate 36. The notch 220 provides a space for the first door panel 22 to be tilted out, so that the first door panel 22 can rotate along the rotation axis of the hinge 37, thereby increasing the upper limit of the tilt angle of the first door panel 22 and thus increasing the width of the escape gap at the door opening 210.

[0053] The top of the second door panel 23 has a notch 220 at the edge of the stop plate 36. The notch 220 provides a receiving space when the second door panel 23 is tilted to the side, so that the second door panel 23 can rotate along the rotation axis of the hinge 37, thereby increasing the upper limit of the tilt angle of the second door panel 23 and thus increasing the width of the escape gap at the door opening 210.

[0054] Reference Figure 14 When the spring 34 is a compression spring, after the first door panel 22 / second door panel 23 exits from the inside of the door opening 210, the personnel can continue to pull the first door panel 22 / second door panel 23 outwards until the second column 35 is completely disengaged from the cross brace assembly 211, thereby achieving complete disassembly of the first door panel 22 / second door panel 23 and obtaining a wider escape gap.

[0055] Reference Figure 15 When the spring 34 is a tension spring, after the first door panel 22 / second door panel 23 exits from the inside of the door opening 210, the personnel can continue to pull the first door panel 22 / second door panel 23 outwards until one end of the tension spring comes out of the cross brace assembly 211, and then flip the first door panel 22 / second door panel 23. The tension spring flips synchronously, resulting in a wider escape gap.

[0056] Reference Figure 6 The cross brace assembly 211 has extension fins 2111 on both sides pointing towards the door opening 210. The extension fins 2111 abut against the top of the first door panel 22 / the bottom of the second door panel 23 to avoid visible gaps, thereby improving the sealing performance of the invention and enhancing its aesthetics.

[0057] In the description of this invention, it should be noted that the terms "upper," "lower," "left," "right," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0058] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or a connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0059] In conclusion, for those skilled in the art, any changes, modifications, substitutions, or variations made to this invention based on the guidance of this invention, without departing from the principles and spirit of this invention, still fall within the protection scope of this invention.

Claims

1. An earthquake-resistant escape door that can be opened normally despite frame deformation, characterized in that: It includes a door frame (1) and a door body (2) rotatably connected to the door frame (1); the door body (2) includes an inner support frame (21), and the inner support frame (21) has a door opening (210) in the middle; the door body (2) also includes a first door panel (22) and a second door panel (23) installed in the door opening (210) and capable of being opened. The inner support frame (21) includes one horizontal support assembly (211) at the top and one vertical support assembly (212) at the bottom and one vertical support assembly (212) at the left and right. The upper horizontal support assembly (211) is connected to the top of the first door panel (22) by several first connectors (3), and the lower horizontal support assembly (211) is connected to the bottom of the second door panel (23) by several first connectors (3). The first door panel (22) and the second door panel (23) are connected by second connectors (4). The cross brace assembly (211) has a longitudinal mounting hole, and the first connector (3) is disposed in the mounting hole; The first connector (3) includes a fixing clip (31), a sleeve (32), a first column (33), a spring (34), a second column (35), a stop plate (36), and a hinge (37); The fixing card (31) is fixedly connected to the sleeve (32); the first column (33), the spring (34) and the second column (35) are all placed inside the sleeve (32), and the two ends of the spring (34) abut against the bottom of the first column (33) and the top of the second column (35) respectively; the bottom of the second column (35) is connected to the stop plate (36); the stop plate (36) is connected to the hinge (37); The stop plate (36) is connected to the first door panel (22) or the second door panel (23); A notch (220) is provided at the top of the first door panel (22) or the bottom of the second door panel (23) at the edge of the stop piece (36). The notch (220) provides a receiving space for the stop piece (36) when the first door panel (22) or the second door panel (23) is extended to the side. The spring (34) is a tension spring; after the first door panel (22) or the second door panel (23) comes out from the inside of the door opening (210), it can be pulled outward so that one end of the tension spring comes out from the cross brace assembly (211); then the first door panel (22) or the second door panel (23) can be flipped to increase the width of the escape gap; The cross brace assembly (211) has extension fins (2111) on both sides pointing towards the door opening (210). The extension fins (2111) can abut against the top of the first door panel (22) or the bottom of the second door panel (23) to avoid visible gaps.

2. The earthquake-resistant escape door that can be opened normally despite frame deformation as described in claim 1, characterized in that: The horizontal support assembly (211) and the vertical support assembly (212) are fixedly connected in a U-shape.

3. The earthquake-resistant escape door that can be opened normally despite frame deformation according to claim 2, characterized in that: The mounting hole is provided with an expansion hole (21101) and a sleeve hole (21102). The fixing card (31) is placed in the expansion hole (21101) and the sleeve (32) is placed in the sleeve hole (21102).

4. The earthquake-resistant escape door that can be opened normally despite frame deformation as described in claim 1, characterized in that: The second connector (4) includes a first locking member (41), a second locking member (42), and a locking post (43); the first locking member (41) has a first locking hole (411), the second locking member (42) has a second locking hole (421), the first locking hole (411) is connected to the locking post (43) through, and the second locking hole (421) is connected to the locking post (43) through and snapped together.

5. The earthquake-resistant escape door that can be opened normally despite frame deformation according to claim 4, characterized in that: The first locking hole (411) and the second locking hole (421) are coaxially arranged.

6. The earthquake-resistant escape door that can be opened normally despite frame deformation according to claim 5, characterized in that: The first locking member (41) and the second locking member (42) are connected by an inclined plane.

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