Emergency escape device for subway shaft

Abstract

The utility model discloses a subway shaft emergency escape device which comprises a side wall and two groups of chains formed by rotatably connecting a plurality of groups of chain blocks, the inner sides of the chain blocks are fixedly connected with tooth blocks, the outer part of a mounting seat is fixedly connected with a first motor, the inner part of a mounting groove is fixedly provided with a second motor, and the outer part of a rotating rod is fixedly connected with a gear. Limiting plates are fixedly connected to the inner sides of the chain blocks, lifting rods are fixedly connected to the outer portions of the chains, sliding grooves are formed in the inner sides of the side walls, connecting grooves are formed in the sliding grooves, and auxiliary lifting mechanisms are installed in the connecting grooves. When a flood disaster or a fire disaster suddenly occurs, the device can synchronously drive two sets of motors through a controller, so that a gear drives a chain to vertically convey, a limiting plate between the gear and a tooth block can ensure stability, a lifting rod slides in a sliding groove for limiting to keep stable lifting of multiple persons, friction force is reduced through balls, and rapid escape is facilitated; the device has the functions of manual alarm and active control, and is stable in structure and high in safety.

Description

Technical Field

[0001] The utility model relates to the technical field of shaft escape equipment, in particular to a subway shaft emergency escape device. Background Art

[0002] Generally, tunnel construction can only be carried out from the openings at both ends to the middle of the tunnel, and the construction period is relatively long. Therefore, in the construction of extra-long tunnels, auxiliary tunnels are usually used to increase the working surface and speed up the construction progress. Common auxiliary construction tunnels are parallel pilot tunnels and inclined shafts. For extra-long tunnels with a length of more than 5 kilometers, a vertical shaft will be designed in the middle of the tunnel as an exhaust and ventilation facility during operation. In the construction of domestic highway tunnels, there are few projects that use vertical shafts to assist construction. The construction of vertical shaft-assisted tunnels is in a relatively deep and closed space environment underground, especially for vertical shafts with a depth of more than 100 meters. When encountering sudden floods and fires during construction, the operators can only escape the tunnel through cages and buckets. When the cages or buckets are being lifted or are not at the bottom of the well, they need to wait for the cages or buckets, which increases the time required to escape the tunnel and is very likely to cause large casualties.

[0003] Therefore, there is a need for a subway shaft emergency escape device that can provide intuitive guidance and has both manual alarm and active control functions. At the same time, the escape device itself needs to have sufficient stability and fault tolerance. Therefore, a subway shaft emergency escape device is proposed herein. Utility Model Content

[0004] The utility model aims to provide an emergency escape device for a subway shaft. In case of a sudden flood or fire, two sets of motors can be synchronously driven by a controller, so that the gear drives the chain to transport vertically, the limit plate between the gear and the tooth block can ensure stability, the lifting rod slides and limits in the slide groove to keep the lifting of multiple people stable, and the friction is reduced by the ball bearing, which is conducive to rapid escape. This device has both manual alarm and active control functions, and the structure is stable and has high safety.

[0005] The utility model is realized by the following technical solutions:

[0006] A subway shaft emergency escape device comprises a side wall and two groups of chains formed by rotatably connecting multiple groups of chain blocks, the inner side of the chain block is fixedly connected with a tooth block, the upper side of the side wall is fixedly connected with a mounting seat, the outside of the mounting seat is fixedly connected with a first motor, the lower side of the side wall is provided with a mounting groove, the inside of the mounting groove is fixedly installed with a second motor, one side of the first motor and the second motor are both fixedly connected with a rotating rod, the outside of the rotating rod is fixedly connected with a gear, and the gear is meshed with the tooth block, the inner side of the chain block is fixedly connected with a limit plate, and the limit plate is located on both sides of the gear and the tooth block, the outside of the chain is fixedly connected with a lifting rod, the inner side of the side wall is provided with a slide groove, and the slide groove and the lifting rod are slidably connected, the inside of the slide groove is provided with a connecting groove, and the inside of the connecting groove is installed with an auxiliary lifting mechanism.

[0007] Preferably, the chain block has a certain toughness.

[0008] Preferably, the lifting rods are arranged at equal intervals, and an anti-drop sleeve is fixedly connected to the upper side of the lifting rod.

[0009] Preferably, the auxiliary lifting mechanism includes a fixing rod and a ball, the fixing rod is fixedly installed inside the connecting groove, the ball and the fixing rod are rotatably connected, and the ball rotates in a vertical direction, and the ball abuts against two sides of the lifting rod.

[0010] Preferably, an escape platform is abutted against the lower side of the side wall, and a ladder is fixedly connected to the outside of the escape platform.

[0011] Preferably, a steel plate is fixedly connected to the upper side of the side wall, and a reinforcing plate is fixedly connected between the bottom of the steel plate and the side wall.

[0012] Preferably, a vertical plate is fixedly connected to the upper side of the escape platform, a controller is fixedly connected to the outside of the vertical plate, and the controller is signal-connected to the first motor and the second motor.

[0013] The technical solution of the utility model has at least the following beneficial effects:

[0014] The utility model proposes a subway shaft emergency escape device, which can be quickly activated in emergencies such as floods or fires. The first motor and the second motor are synchronously driven by a controller to make the rotating rod drive the gear to rotate, driving the chain composed of multiple groups of chain blocks to be transported in the vertical direction. In order to improve the operation stability, limit plates are provided on both sides of the gear and the tooth block to prevent separation. Construction personnel can rise through the lifting rod and escape from the shaft through the steel plate. The anti-detachment sleeve on the lifting rod enhances the comfort of holding and prevents falling off. During the lifting process, the lifting rod slides in a limited position in the slide groove, which can ensure the stability of multiple construction personnel lifting at the same time. In addition, the two sides of the lifting rod are in contact with the balls in the connecting groove, which can reduce friction and avoid jamming, so as to facilitate rapid escape. This device integrates manual alarm and active control, and has a stable structure and high safety. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0016] Figure 2 for Figure 1 A magnified view of middle;

[0017] Figure 3 for Figure 1 Enlarged view of middle B;

[0018] Figure 4 It is a top view of the local structure of the utility model;

[0019] Figure 5 for Figure 4 Enlarged view of middle C;

[0020] Figure 6 for Figure 1 Enlarged view of middle D;

[0021] Icons: 1. Side wall; 2. Mounting seat; 3. First motor; 4. Mounting slot; 5. Second motor; 6. Rotating rod; 7. Gear; 8. Chain block; 9. Tooth block; 10. Limit plate; 11. Lifting rod; 12. Anti-slip sleeve; 13. Slide slot; 14. Connecting slot; 15. Fixed rod; 16. Ball; 17. Escape platform; 18. Ladder; 19. Steel plate; 20. Reinforcement plate; 21. Vertical plate; 22. Controller. DETAILED DESCRIPTION

[0022] 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.

[0023] See also Figure 1-6 The utility model provides a subway shaft emergency escape device, comprising a side wall 1 and two groups of chains formed by a plurality of chain blocks 8 rotatably connected, a tooth block 9 is fixedly connected to the inner side of the chain block 8, a mounting seat 2 is fixedly connected to the upper side of the side wall 1, a first motor 3 is fixedly connected to the outside of the mounting seat 2, a mounting groove 4 is provided on the lower side of the side wall 1, a second motor 5 is fixedly installed inside the mounting groove 4, a rotating rod 6 is fixedly connected to one side of the first motor 3 and the second motor 5, a gear 7 is fixedly connected to the outside of the rotating rod 6, and the gear 7 is meshed with the tooth block 9, a limit plate 10 is fixedly connected to the inner side of the chain block 8, and the limit plate 10 is located on both sides of the gear 7 and the tooth block 9, a lifting rod 11 is fixedly connected to the outside of the chain, a slide groove 13 is provided on the inner side of the side wall 1, and the slide groove 13 is slidably connected to the lifting rod 11, a connecting groove 14 is provided inside the slide groove 13, and an auxiliary lifting mechanism is installed inside the connecting groove 14.

[0024] The chain block 8 has a certain toughness, so it can be rotated and bent without breaking.

[0025] The lifting rods 11 are arranged at equal intervals, and an anti-dropout sleeve 12 is fixedly connected to the upper side of the lifting rod 11. The anti-dropout sleeve 12 can enhance the comfort of holding and prevent it from falling off.

[0026] The auxiliary lifting mechanism includes a fixing rod 15 and a ball 16 . The fixing rod 15 is fixedly installed inside the connecting groove 14 . The ball 16 is rotatably connected to the fixing rod 15 , and the ball 16 rotates in a vertical direction. The ball 16 abuts against both sides of the lifting rod 11 .

[0027] An escape platform 17 is abutted against the lower side of the side wall 1 , and a ladder 18 is fixedly connected to the outside of the escape platform 17 . Construction workers can ascend to the escape platform 17 via the ladder 18 , and then escape from the shaft via the lifting rod 11 .

[0028] A steel plate 19 is fixedly connected to the upper side of the side wall 1 , and a reinforcing plate 20 is fixedly connected between the bottom of the steel plate 19 and the side wall 1 .

[0029] A vertical plate 21 is fixedly connected to the upper side of the escape platform 17 , a controller 22 is fixedly connected to the outside of the vertical plate 21 , and the controller 22 is signal-connected to the first motor 3 and the second motor 5 .

[0030] The working principle of a subway shaft emergency escape device based on the embodiment is that when a sudden flood or fire occurs during construction, the first motor 3 and the second motor 5 can be controlled by the controller 22 to drive synchronously, so that the rotating rod 6 drives the gear 7 to rotate. Since the gear 7 is meshed with the tooth block 9, the chain composed of multiple groups of chain blocks 8 can be transported in the vertical direction. At the same time, in order to ensure the operational stability during transportation, limit plates 10 are installed on both sides of the gear 7 and the tooth block 9 to prevent the gear 7 from being separated from the tooth block 9. In this way, the construction personnel can hold the upper layer lifting rod 11 tightly and step on the lower layer lifting rod 11 to 11 is lifted up and escapes from the shaft through the steel plate 19. In this process, the anti-drop sleeve 12 on the lifting rod 11 can enhance comfort on the one hand and prevent it from falling off on the other hand. In addition, the lifting rod 11 will slide and limit in the slide groove 13 during the lifting process, so as to maintain stability when multiple construction workers are lifted at the same time. In addition, the rolling contact between the two sides of the lifting rod 11 and the balls 16 in the connecting groove 14 can reduce friction and prevent the lifting rod 11 from getting stuck, which is beneficial for the construction workers to quickly lift and escape. The whole device realizes both manual alarm and active control functions, and the structural stability of the whole device is guaranteed, with high safety.

[0031] 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 subway shaft emergency escape device, characterized in that: The invention comprises a side wall (1) and two groups of chains formed by rotatably connecting a plurality of groups of chain blocks (8), wherein a tooth block (9) is fixedly connected to the inner side of the chain block (8), a mounting seat (2) is fixedly connected to the upper side of the side wall (1), a first motor (3) is fixedly connected to the outside of the mounting seat (2), a mounting groove (4) is provided on the lower side of the side wall (1), a second motor (5) is fixedly installed inside the mounting groove (4), a rotating rod (6) is fixedly connected to one side of each of the first motor (3) and the second motor (5), and the outer side of the rotating rod (6) is fixedly connected to the outer side of the rotating rod (6). A gear (7) is fixedly connected thereto, and the gear (7) is meshed with a tooth block (9); a limit plate (10) is fixedly connected to the inner side of the chain block (8), and the limit plate (10) is located on both sides of the gear (7) and the tooth block (9); a lifting rod (11) is fixedly connected to the outside of the chain; a sliding groove (13) is provided on the inner side of the side wall (1), and the sliding groove (13) and the lifting rod (11) are slidably connected; a connecting groove (14) is provided inside the sliding groove (13), and an auxiliary lifting mechanism is installed inside the connecting groove (14).

2. A subway shaft emergency escape device according to claim 1, characterized in that: The chain block (8) has a certain toughness.

3. The subway shaft emergency escape device according to claim 1, characterized in that: The lifting rods (11) are arranged at equal intervals, and an anti-drop sleeve (12) is fixedly connected to the upper side of the lifting rod (11).

4. The subway shaft emergency escape device according to claim 1, characterized in that: The auxiliary lifting mechanism comprises a fixing rod (15) and a ball (16); the fixing rod (15) is fixedly installed inside the connecting groove (14); the ball (16) and the fixing rod (15) are rotatably connected, and the ball (16) rotates in a vertical direction; the ball (16) abuts against two sides of the lifting rod (11).

5. The subway shaft emergency escape device according to claim 1, characterized in that: An escape platform (17) is abutted against the lower side of the side wall (1), and a ladder (18) is fixedly connected to the outside of the escape platform (17).

6. The subway shaft emergency escape device according to claim 1, characterized in that: A steel plate (19) is fixedly connected to the upper side of the side wall (1), and a reinforcing plate (20) is fixedly connected between the bottom of the steel plate (19) and the side wall (1).

7. The subway shaft emergency escape device according to claim 5, characterized in that: The upper side of the escape platform (17) is fixedly connected to a vertical plate (21), the exterior of the vertical plate (21) is fixedly connected to a controller (22), and the controller (22) is signal-connected to the first motor (3) and the second motor (5).

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