Fireproof elevator landing door

Abstract

The invention discloses a fireproof elevator landing door which comprises a door plate, a fireproof sealing plate, a swing arm, a first rotary connecting piece, a second rotary connecting piece, a fixed supporting component, a limiting rod and a first blocking piece. The fixed supporting component is fixedly installed on a door plate, and the swing arm is rotatably installed on the fixed supporting component through a first rotary connecting piece. The fireproof sealing plate is rotatably mounted at one end of the swing arm through the second rotary connecting piece, and the limiting rod is mounted at the other end of the swing arm; the first blocking piece is fixedly connected with the door plate or the fixed supporting structure through a hot melting adhesive and makes contact with the limiting rod, so that the fireproof sealing plate is kept at a first preset position, and the fireproof sealing plate cannot shield a gap of the door plate through the first preset position; the hot-melt adhesive has a preset failure temperature, when the hot-melt adhesive fails, the fireproof sealing plate is kept at a second preset position, and the second preset position enables the fireproof sealing plate to shield the gap of the door plate.

Description

Technical Field

[0001] The invention relates to the technical field of elevators, and in particular to a fireproof elevator landing door. Background Art

[0002] In fireproof elevator landing doors, the traditional fixed labyrinth fireproof sealing plate is a key fireproof isolation measure. Its original design is to effectively block the vertical propagation path of flames and smoke through the elevator shaft in the event of a fire emergency, thereby protecting the safety of passengers and reducing the damage to the building caused by the fire. However, the structural design of this sealing plate has certain limitations in practical applications. Due to its fixed size and shape, when the elevator door is opened, additional space is required to accommodate the protruding fireproof sealing plate, which causes the stroke of the elevator door to be increased accordingly. This increased stroke not only affects the operating efficiency of the elevator, but also puts higher requirements on the civil engineering design of the elevator shaft. Especially in terms of shaft width, in order to adapt to the size of the fireproof sealing plate, the original building design may need to be adjusted, which increases the construction cost and construction difficulty. In addition, this design may also have a certain impact on the aesthetics of the elevator and the passenger experience. Therefore, it is a technical problem currently faced in the design of fireproof elevator landing doors to improve the fireproof performance of the elevator while reducing the impact on civil engineering. Summary of the invention

[0003] In order to solve the above technical problems, the present invention provides a fireproof elevator landing door, comprising a door panel, a fireproof sealing plate, a swing arm, a first rotating connection member, a second rotating connection member, a fixed support member, a limit rod and a first blocking member;

[0004] The fixed support member is fixedly mounted on the door panel, and the swing arm is rotatably mounted on the fixed support member via a first rotating connection member;

[0005] The fireproof sealing plate is rotatably mounted on one end of the swing arm through a second rotating connector, and the limit rod is mounted on the other end of the swing arm;

[0006] The first blocking member is fixedly connected to the door panel or the fixed support structure by a hot melt adhesive and contacts the limit rod, so that the fireproof sealing plate is kept in a first preset position, and the first preset position makes the fireproof sealing plate not cover the gap of the door panel;

[0007] The hot melt adhesive has a preset failure temperature. When the hot melt adhesive fails, the fireproof sealing plate is kept at a second preset position. The second preset position enables the fireproof sealing plate to cover the gap of the door panel.

[0008] Preferably, the fireproof elevator floor door comprises a second blocking member, which is fixedly connected to the door panel or the fixed support structure; when the hot melt adhesive is effective, it acts together with the first blocking member on the limiting rod to keep the fireproof sealing plate in the first preset position.

[0009] Preferably, when the hot melt adhesive fails, the fireproof sealing plate moves from the first preset position to the second preset position in a plane parallel to the door panel.

[0010] Preferably, the preset failure temperature of the hot melt adhesive is about 200 degrees Celsius.

[0011] Preferably, the first blocking member is connected to the fixed support member via a latch.

[0012] Preferably, the first blocking member is connected to the second blocking member via a latch.

[0013] Preferably, when the hot melt adhesive fails, the fireproof sealing plate moves from the first preset position to the second preset position by its own gravity.

[0014] Preferably, the fireproof elevator landing door further comprises a driving member, and when the hot melt adhesive fails, the fireproof sealing plate moves from the first preset position to the second preset position by the driving force of the driving member.

[0015] Preferably, the driving member is a torsion spring or a spring.

[0016] The present invention realizes the automatic deployment of the fireproof sealing plate through the temperature failure mechanism of the hot melt adhesive, effectively solves the problem in the prior art that the fireproof sealing plate affects the normal use of the elevator and the civil structure, and has the advantages of reasonable structure, rapid response, safety and reliability, etc. In addition, the aesthetics and practicality of the elevator floor door are fully considered to ensure efficient fireproof performance in the event of a fire, while not affecting the normal operation of the elevator and the passenger's travel experience in daily use.

[0017] The present invention also provides a fireproof elevator landing door, comprising a door panel, a fireproof sealing plate, a fixed support member, a driving member, a trigger member and a temperature monitoring device;

[0018] The fixed support member is fixedly mounted on the door panel, the driving member and the triggering member are mounted on the fixed support member, and the fireproof sealing plate is connected to the driving member;

[0019] The temperature monitoring device monitors the surface temperature of the door panel; when the surface temperature of the door panel reaches or exceeds the preset temperature, the triggering element is controlled to change from a non-triggering state to a triggering state; when the surface temperature of the door panel is lower than the preset temperature, the triggering element is controlled to remain in the non-triggering state;

[0020] When the trigger member is in a non-trigger state, the trigger member constrains the driving member so that the driving member keeps the fireproof sealing plate in a first preset position, and the first preset position makes the fireproof sealing plate not cover the gap of the door panel; when the trigger member is in a trigger state, the trigger member releases the driving member, so that the driving member keeps the fireproof sealing plate in a second preset position, and the second preset position makes the fireproof sealing plate cover the gap of the door panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments:

[0022] Figures 1 to 3 This is a schematic diagram of the structure of a fireproof elevator landing door according to Example 1;

[0023] Figure 4 It is a schematic diagram of a fireproof sealing plate of a fireproof elevator landing door of Example 1 being located at a second preset position;

[0024] Figure 5 This is a schematic diagram of the fireproof elevator floor door structure of Example 2. DETAILED DESCRIPTION

[0025] The following describes the implementation methods of the present invention through specific specific embodiments, and those skilled in the art can fully understand other advantages and technical effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through different specific implementation methods, and the details in this specification can also be applied based on different viewpoints, and various modifications or changes can be made without deviating from the overall design concept of the invention. It should be noted that the following embodiments and the features in the embodiments can be combined with each other in the absence of conflict. The following exemplary embodiments of the present invention can be implemented in a variety of different forms and should not be interpreted as being limited to the specific embodiments described herein. It should be understood that these embodiments are provided to make the disclosure of the present invention thorough and complete, and to fully convey the technical solutions of these exemplary specific embodiments to those skilled in the art.

[0026] Example 1

[0027] like Figures 1 to 3 As shown, this embodiment provides a door panel 1, a fireproof sealing plate 4, a swing arm 3, a first rotating connection member 8, a second rotating connection member 7, a fixed support member 2, a limit rod 9 and a first blocking member 5; the fixed support member 2 is fixedly mounted on the door panel 1, and the swing arm 3 is rotatably mounted on the fixed support member 2 through the first rotating connection member 8;

[0028] The fireproof sealing plate 4 is rotatably mounted on one end of the swing arm 3 through a second rotating connector 7, and the limit rod 9 is mounted on the other end of the swing arm 3;

[0029] The first blocking member 5 is fixedly connected to the door panel 1 or the fixed support structure through the hot melt adhesive 11, and contacts the limiting rod 9, so that the fireproof sealing plate 4 is kept in the first preset position, and the first preset position makes the fireproof sealing plate 4 not cover the gap of the door panel 1;

[0030] The hot melt adhesive 11 has a preset failure temperature. When the hot melt adhesive 11 fails, the fireproof sealing plate 4 is kept at a second preset position. The second preset position allows the fireproof sealing plate 4 to cover the gap of the door panel 1 (such as Figure 4 shown).

[0031] The preset failure temperature of the hot melt adhesive 11 is about 200 degrees Celsius. When the ambient temperature rises to more than 200 degrees Celsius due to a fire, the hot melt adhesive 11 will fail, causing the first blocking member 5 to separate from the door panel 1 or the fixed support structure to lose the limiting effect on the limiting rod 9. The fireproof sealing plate 4 rotates around the first rotating connector 8 under the action of gravity until the limiting rod 9 hits the fixed support structure, that is, it moves from the first preset position to the second preset position. At this time, the fireproof sealing plate 4 covers the gap of the door panel 1 to achieve the effect of fireproof sealing.

[0032] In this embodiment, looking from the inside of the well to the outside, the fireproof sealing plate 4 is arranged on the right door panel 1, and the alternative fireproof sealing plate 4 can also be symmetrically arranged on the left door panel 1. The first blocking member 5 can be arranged at the upper swing arm 3, and can also be arranged at the lower swing arm 3 alternatively.

[0033] In order to better restrict the position of the fireproof sealing plate 4, the fireproof elevator floor door includes a second blocking member 6, which is fixedly connected to the door panel 1 or a fixed support structure; when the hot-melt adhesive 11 is effective, it acts together with the first blocking member 5 on the limiting rod 9 to keep the fireproof sealing plate 4 in the first preset position.

[0034] Preferably, when the hot melt adhesive 11 fails, the fireproof sealing plate 4 moves from the first preset position to the second preset position in a plane parallel to the door panel 1. Controlling the movement of the fireproof sealing plate 4 in one plane can save space and avoid interference with the side components of the car.

[0035] Preferably, the first blocking member 5 is connected to the fixed support member 2 or the second blocking member 6 via a latch 10, so that the first blocking member 5 will not be separated from the door panel 1 after the hot-melt adhesive 11 fails, thereby facilitating subsequent re-fixation.

[0036] In this embodiment, the fireproof sealing plate 4 moves from the first preset position to the second preset position by its own gravity.

[0037] Optionally, a driving member may be installed, and when the hot melt adhesive 11 fails, the fireproof sealing plate 4 moves from the first preset position to the second preset position by the driving force of the driving member. The driving member is, for example, a torsion spring installed on the first rotating connector 8, or a spring fixed to one end of the limit rod 9.

[0038] This embodiment realizes the automatic deployment of the fireproof sealing plate through the temperature failure mechanism of the hot melt adhesive, effectively solves the problem of the fireproof sealing plate affecting the normal use of the elevator and the civil structure in the prior art, and has the advantages of reasonable structure, rapid response, safety and reliability, etc. In addition, the aesthetics and practicality of the elevator door are fully considered to ensure efficient fireproof performance in the event of a fire, while not affecting the normal operation of the elevator and the passenger's travel experience in daily use.

[0039] Example 2

[0040] like Figure 5 As shown, this embodiment provides a fireproof elevator landing door, including a door panel 1, a fireproof sealing plate 4, a fixed support member 2, a driving member 14, a trigger member 15 and a temperature monitoring device 16;

[0041] The fixed support member 2 is fixedly mounted on the door panel 1, the driving member 14 and the trigger member 15 are mounted on the fixed support member 2, and the fireproof sealing plate 4 is connected to the driving member 14;

[0042] The temperature monitoring device 16 monitors the surface temperature of the door panel 1; when the surface temperature of the door panel 1 reaches or exceeds a preset temperature, the triggering element 15 is controlled to change from a non-triggering state to a triggering state; when the surface temperature of the door panel 1 is lower than the preset temperature, the triggering element 15 is controlled to remain in the non-triggering state;

[0043] When the trigger member 15 is in a non-trigger state, the trigger member 15 constrains the driving member 14, so that the driving member 14 keeps the fireproof sealing plate 4 in a first preset position, and the first preset position makes the fireproof sealing plate 4 not cover the gap of the door panel 1; when the trigger member 15 is in a trigger state, the trigger member 15 releases the driving member 14, so that the driving member 14 keeps the fireproof sealing plate 4 in a second preset position, and the second preset position makes the fireproof sealing plate 4 cover the gap of the door panel 1.

[0044] The trigger member 15 is, for example, controlled by electromagnetic force to switch between the trigger state and the non-trigger state. The driving member 14 can be a torsion spring and a swing arm driven by it as described in Example 1, or a spring and a guide member providing horizontal driving.

[0045] The main difference between this embodiment and embodiment 1 is that this embodiment adopts the method of active triggering by the trigger member 15, and the preset temperature can be actively controlled, for example, the preset temperature can be set at 200 degrees Celsius or 230 degrees Celsius. After the hot melt adhesive of embodiment 1 is selected, the preset temperature is determined. Of course, embodiment 1 also has its advantages over embodiment 2, and its reliability is higher. The temperature monitoring device and trigger member of embodiment 2 are usually electronic devices, which require power maintenance and have a certain probability of failure. The trigger member 15 is, for example, controlled by electromagnetic force to switch between the triggered state and the non-triggered state. The driving member 14 can be a torsion spring and a swing arm driven by it as described in embodiment 1, or it can be a spring and a guide member provided in the horizontal drive.

[0046] The present invention has been described in detail above through specific implementation modes and embodiments, but these do not constitute limitations of the present invention. Without departing from the principles of the present invention, those skilled in the art may also make many variations and improvements, which should also be regarded as the protection scope of the present invention.

Claims

1. A fireproof elevator landing door, characterized in that: It includes a door panel, a fireproof sealing plate, a swing arm, a first rotating connecting member, a second rotating connecting member, a fixed supporting member, a limiting rod and a first blocking member; The fixed support member is fixedly mounted on the door panel, and the swing arm is rotatably mounted on the fixed support member via a first rotating connection member; The fireproof sealing plate is rotatably mounted on one end of the swing arm through a second rotating connector, and the limit rod is mounted on the other end of the swing arm; The first blocking member is fixedly connected to the door panel or the fixed support structure by a hot melt adhesive and contacts the limit rod, so that the fireproof sealing plate is kept in a first preset position, and the first preset position makes the fireproof sealing plate not cover the gap of the door panel; The hot melt adhesive has a preset failure temperature. When the hot melt adhesive fails, the fireproof sealing plate is kept at a second preset position. The second preset position enables the fireproof sealing plate to cover the gap of the door panel.

2. The fireproof elevator landing door according to claim 1, characterized in that: The fireproof elevator floor door comprises a second blocking member, which is fixedly connected to the door panel or the fixed support structure; when the hot melt adhesive is effective, it acts together with the first blocking member on the limiting rod to keep the fireproof sealing plate at the first preset position.

3. The fireproof elevator landing door according to claim 1, characterized in that: When the hot melt adhesive fails, the fireproof sealing plate moves from the first preset position to the second preset position which is a plane parallel to the door panel.

4. The fireproof elevator landing door according to claim 1, characterized in that: The preset failure temperature of the hot melt adhesive is about 200 degrees Celsius.

5. The fireproof elevator landing door according to claim 1, characterized in that: The first blocking member is connected to the fixed supporting component through a latch.

6. The fireproof elevator landing door according to claim 2, characterized in that: The first blocking member is connected to the second blocking member via a latch.

7. The fireproof elevator landing door according to claim 1, characterized in that: When the hot melt adhesive fails, the fireproof sealing plate moves from the first preset position to the second preset position by its own gravity.

8. The fireproof elevator landing door according to claim 1, characterized in that: The fireproof elevator landing door also has a driving member. When the hot melt adhesive fails, the fireproof sealing plate moves from the first preset position to the second preset position through the driving force of the driving member.

9. The fireproof elevator landing door according to claim 8, characterized in that: The driving member is a torsion spring or a spring.

10. A fireproof elevator landing door, characterized in that: It includes a door panel, a fireproof sealing panel, a fixed support member, a driving member, a trigger member and a temperature monitoring device; The fixed support member is fixedly mounted on the door panel, the driving member and the triggering member are mounted on the fixed support member, and the fireproof sealing plate is connected to the driving member; The temperature monitoring device monitors the surface temperature of the door panel; when the surface temperature of the door panel reaches or exceeds a preset temperature, the triggering element is controlled to change from a non-triggering state to a triggering state; When the surface temperature of the door panel is lower than the preset temperature, the control trigger element remains in a non-triggering state; When the trigger member is in a non-trigger state, the trigger member constrains the driving member so that the driving member keeps the fireproof sealing plate in a first preset position, and the first preset position makes the fireproof sealing plate not cover the gap of the door panel; when the trigger member is in a trigger state, the trigger member releases the driving member, so that the driving member keeps the fireproof sealing plate in a second preset position, and the second preset position makes the fireproof sealing plate cover the gap of the door panel.

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