An elevator with a fireproof door

Abstract

This utility model discloses an elevator with a fireproof door, belonging to the field of elevator technology. It includes an elevator shaft unit, with a storage groove at the elevator entrance. A left elevator door and a right elevator door are arranged inside the storage groove, symmetrically distributed. A sliding groove is provided on the side of the left elevator door closest to the right elevator door. A sliding block is slidably connected inside the sliding groove, and a helical spring is fixedly connected between the sliding block and the sliding groove. This utility model, through the cooperation of the sliding block, helical spring, buffer block, positioning groove, and adapter groove, not only achieves precise positioning when the left and right elevator doors close, but also seals the gap at the closing point of the two doors by the tight fit of the buffer block and the adapter groove, effectively preventing flames from passing through the gap and significantly improving the fireproof sealing performance of the fireproof door.

Description

Technical Field

[0001] This utility model belongs to the field of elevator technology, specifically relating to an elevator with a fireproof and insulating door. Background Technology

[0002] An elevator is a vertical transportation device that relies on the coordinated operation of mechanical and electrical systems. Its core consists of a car that can move smoothly up and down along fixed guide rails, a drive device that provides power (such as a traction machine), an electrical system that precisely controls the operation, and multiple safety components such as speed governors, buffers, and safety brakes. It is widely used in various building scenarios such as residences, shopping malls, office buildings, hospitals, and factories.

[0003] Chinese Patent Publication No. CN210825041U discloses an elevator with a fireproof and insulating door, including an elevator shaft unit. The elevator shaft unit has a first elevator door and a second elevator door at the elevator entrance, which are fitted together. The elevator entrance in the elevator shaft unit can be used with a running elevator car. One end of the first elevator door is fixedly installed to a fixed side by bolts, and one end of the fixed side is engaged with both ends of a buffer device. This utility model has a buffer device fixedly installed on one side of the first elevator door. A positioning cavity is provided on the second elevator door opposite to the buffer device. A buffer spring in the buffer device is connected to the buffer, so that when the first and second elevator doors overlap, the buffer plate is positioned in the positioning cavity, providing a certain degree of buffering and effective protection between the elevator doors.

[0004] While existing patents can effectively improve the fire resistance of elevator doors through multi-layer flame-retardant structures and reduce the risk of the doors being directly burned through, in actual fire scenarios, flames can still easily seep in or penetrate through the seams in the middle of the elevator doors, resulting in more serious economic losses. Utility Model Content

[0005] The purpose of this invention is to provide an elevator with a fireproof and insulating door to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an elevator with a fireproof door, comprising an elevator shaft unit, wherein a storage groove is provided at the elevator entrance of the elevator shaft unit, and a left elevator door and a right elevator door are provided inside the storage groove, the left elevator door and the right elevator door being symmetrically distributed left and right; a movable slide groove is provided on the side of the left elevator door near the right elevator door, a movable slider is slidably connected inside the movable slide groove, and a helical spring is fixedly connected between the movable slider and the movable slide groove; a positioning groove is provided on the side of the right elevator door near the left elevator door; this utility model, through the cooperation of the movable slider, helical spring, buffer block, positioning groove, and adapter groove, not only achieves precise positioning of the left and right elevator doors when they are closed, but also, through the tight fit of the buffer block and the adapter groove, seals the gap at the closure of the two doors, effectively preventing flames from passing through the gap, and significantly improving the fireproof sealing performance of the fireproof door.

[0007] In a preferred embodiment, the inner wall of the positioning groove is provided with an adapter groove, and a buffer block is fixedly connected to the end of the movable slider away from the helical spring, the shape of which is adapted to the adapter groove.

[0008] In a preferred embodiment, the left elevator door includes a stainless steel outer layer, a steel wire mesh reinforcement layer inside the stainless steel outer layer, a mineral fiber fireproof layer inside the steel wire mesh reinforcement layer, and a rock wool inner layer inside the mineral fiber fireproof layer. The right elevator door, the sliding block, and the left elevator door are made of the same material.

[0009] In a preferred embodiment, fireproof sealing strips are fixedly connected to the sides of the left and right elevator doors that are close to each other, and the fireproof sealing strips are located on the outside of the moving slide and the positioning groove, respectively.

[0010] In a preferred embodiment, the top and bottom of the storage slot are slidably connected to the left elevator door and the right elevator door via guide rails, and the left elevator door and the right elevator door are adapted to each other.

[0011] In a preferred embodiment, the buffer block is made of high-temperature resistant silicone rubber, and the helical spring is a high-temperature resistant alloy spring.

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

[0013] This utility model, through the cooperation of a movable slider, a spiral spring, a buffer block, a positioning groove, and an adapter groove, not only achieves precise positioning when the left and right elevator doors close, but also seals the gap at the closing point of the two doors by means of the tight fit between the buffer block and the adapter groove, effectively preventing flames from passing through the gap and significantly improving the fireproof sealing performance of the fireproof door. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall three-dimensional structure of this utility model;

[0015] Figure 2 This is a three-dimensional structural diagram of the left elevator door and right elevator door components of this utility model;

[0016] Figure 3 This utility model Figure 2 A magnified 3D structural diagram showing details at point A.

[0017] In the diagram: 1. Elevator shaft unit; 2. Storage slot; 3. Left elevator door; 4. Right elevator door; 5. Moving slide; 6. Moving slider; 7. Helical spring; 8. Buffer block; 9. Positioning slot; 10. Adaptor slot; 11. Fireproof sealing strip; 301. Stainless steel outer layer; 302. Steel wire mesh reinforcement layer; 303. Mineral fiber fireproof layer; 304. Rock wool inner layer. Detailed Implementation

[0018] The present invention will be further described below with reference to the embodiments.

[0019] The following embodiments are used to illustrate the present invention, but should not be used to limit the scope of protection of the present invention. The conditions in the embodiments can be further adjusted according to specific conditions, and simple improvements to the method of the present invention under the premise of the concept of the present invention are all within the scope of protection claimed by the present invention.

[0020] Please see Figure 1-3This utility model provides an elevator with a fireproof and insulated door, including an elevator shaft unit 1. A storage groove 2 is provided at the elevator entrance of the elevator shaft unit 1. A left elevator door 3 and a right elevator door 4 are arranged inside the storage groove 2. The left elevator door 3 and the right elevator door 4 move towards each other within the storage groove 2 at the elevator entrance of the elevator shaft unit 1, and are symmetrically distributed left and right. A sliding groove 5 is provided on the side of the left elevator door 3 closest to the right elevator door 4. A sliding block 6 is slidably connected inside the sliding groove 5. The shape of the sliding block 6 is adapted to the positioning groove 9. A helical spring 7 is fixedly connected between the sliding block 6 and the sliding groove 5. The helical spring 7 can buffer the impact force when the two doors close through elastic deformation, preventing damage to the left elevator door 3, right elevator door 4, and buffer block 8 due to hard impact, thus extending the service life of the components. When the left elevator door 3 and right elevator door 4 are closed, the helical spring 7 is in a contracted state, which can support the moving slider 6 and improve the sealing between the moving slider 6 and the positioning groove 9. The right elevator door 4 has a positioning groove 9 on the side closer to the left elevator door 3. The inner wall of the positioning groove 9 has an adapter groove 10. The end of the moving slider 6 away from the helical spring 7 is fixedly connected to the buffer block 8. The shape of the buffer block 8 matches the shape of the adapter groove 10, and the shape of the buffer block 8 is trapezoidal. As the left elevator door 3 and right elevator door 4 approach each other until they close, the moving slider 6 in the moving slide groove 5 on the left elevator door 3 will slide towards the right elevator door 4 under the elastic force of the helical spring 7 until the buffer block 8 at the end of the moving slider 6 is embedded in the adapter groove 10 on the inner wall of the positioning groove 9 on the right elevator door, thus achieving precise closure of the left elevator door 3 and right elevator door 4. This utility model, through the cooperation of the movable slider 6, the spiral spring 7, the buffer block 8, the positioning groove 9, and the adapter groove 10, not only achieves precise positioning when the left elevator door 3 and the right elevator door 4 are closed, but also, with the tight fit of the buffer block 8 and the adapter groove 10, seals the gap at the closing point of the two doors, effectively preventing flames from passing through the gap and significantly improving the fireproof sealing performance of the fireproof door.

[0021] Specifically, such as Figure 2 and Figure 3As shown, the left elevator door 3 includes a stainless steel outer layer 301, which provides basic support and external protection for the entire door body. The stainless steel outer layer 301 has a steel wire mesh reinforcement layer 302 inside, which can further improve the structural strength of the door body and prevent deformation. The steel wire mesh reinforcement layer 302 has a mineral fiber fireproof layer 303 inside, and a rock wool inner layer 304 inside. The mineral fiber fireproof layer 303 and the rock wool inner layer 304 can effectively block the transmission of flames and high temperatures, playing a role in fire prevention and heat insulation. The right elevator door 4, the sliding block 6 and the left elevator door 3 are made of the same material. Fireproof sealing strips 11 are fixedly connected to the side of the left elevator door 3 and the right elevator door 4 that are close to each other. The fireproof sealing strips 11 are located on the outside of the sliding track 5 and the positioning groove 9, respectively. The fireproof sealing strips 11 will fit tightly when the two doors are closed, sealing the gaps on the outside of the sliding track 5 and the positioning groove 9, preventing flames and smoke from penetrating through the gaps.

[0022] Specifically, such as Figure 2 and Figure 3 As shown, the top and bottom of the storage slot 2 are slidably connected to the left elevator door 3 and the right elevator door 4 via guide rails, and the left elevator door 3 and the right elevator door 4 are compatible. The guide rails at the top and bottom of the storage slot 2 ensure the smooth and stable movement of the left elevator door 3 and the right elevator door 4, reduce the probability of failure during the movement of the doors, and improve the reliability of the elevator.

[0023] The buffer block 8 is made of high-temperature resistant silicone rubber, the spiral spring 7 is a high-temperature resistant alloy spring, and the compatibility between the left elevator door 3 and the right elevator door 4 further ensures the sealing of the door closure.

[0024] Working principle and usage process of this utility model:

[0025] After the staff operates the control command according to the elevator operation requirements, the guide rails at the top and bottom of the storage slot 2 first guide the left elevator door 3 and the right elevator door 4 to move smoothly towards each other in the storage slot 2.

[0026] As the two doors approach each other, the movable slider 6 on the left elevator door 3 will slide towards the right elevator door 4 under the elastic force of the coil spring 7. During this process, the coil spring 7 gradually contracts, which can both buffer the impact force when the two doors close and support the movable slider 6 until the trapezoidal buffer block 8 at the end of the movable slider 6 away from the coil spring 7 is precisely embedded in the matching groove 10 on the inner wall of the positioning groove 9 on the right elevator door 4, so as to achieve the precise closure of the left elevator door 3 and the right elevator door 4.

[0027] In the closed state, the multi-layer structure of the left elevator door 3 and the right elevator door 4, consisting of a stainless steel outer layer 301, a steel wire mesh reinforcement layer 302, a mineral fiber fireproof layer 303, and a rock wool inner layer 304, plays a role in fire prevention and heat insulation. At the same time, the fireproof sealing strips 11 on the side of the left elevator door 3 and the right elevator door 4 that are close to each other are tightly fitted, sealing the gaps on the outside of the moving slide 5 and the positioning groove 9, preventing flames and smoke from penetrating.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An elevator with a fireproof door, comprising an elevator shaft unit (1), characterized in that: The elevator shaft unit (1) has a storage slot (2) at the elevator entrance. The storage slot (2) has a left elevator door (3) and a right elevator door (4) inside. The left elevator door (3) and the right elevator door (4) are symmetrically distributed. The left elevator door (3) has a sliding groove (5) on the side near the right elevator door (4). The sliding groove (5) has a sliding block (6) inside. The sliding block (6) and the sliding groove (5) are fixedly connected by a helical spring (7). The right elevator door (4) has a positioning groove (9) on the side near the left elevator door (3).

2. An elevator with a fireproof door according to claim 1, characterized in that: The inner wall of the positioning groove (9) is provided with an adapter groove (10), and the end of the movable slider (6) away from the helical spring (7) is fixedly connected with a buffer block (8), and the shape of the buffer block (8) is adapted to the adapter groove (10).

3. An elevator with a fireproof door according to claim 1, characterized in that: The left elevator door (3) includes a stainless steel outer layer (301), a steel wire mesh reinforcement layer (302) is provided inside the stainless steel outer layer (301), a mineral fiber fireproof layer (303) is provided inside the steel wire mesh reinforcement layer (302), and a rock wool inner layer (304) is provided inside the mineral fiber fireproof layer (303). The right elevator door (4), the sliding block (6), and the left elevator door (3) are made of the same material.

4. An elevator with a fireproof door according to claim 3, characterized in that: Fireproof sealing strips (11) are fixedly connected to the side of the left elevator door (3) and the right elevator door (4) that are close to each other. The fireproof sealing strips (11) are located on the outside of the moving slide (5) and the positioning groove (9), respectively.

5. An elevator with a fireproof door according to claim 4, characterized in that: The top and bottom of the storage slot (2) are slidably connected to the left elevator door (3) and the right elevator door (4) via guide rails, and the left elevator door (3) and the right elevator door (4) are compatible.

6. An elevator with a fireproof door according to claim 2, characterized in that: The buffer block (8) is made of high-temperature resistant silicone rubber, and the helical spring (7) is a high-temperature resistant alloy spring.

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