CN221703776U - Retractable small evacuation platform - Google Patents

Abstract

The utility model relates to the technical field of evacuation platforms, in particular to a retractable small-sized evacuation platform. The evacuation platform mainly aims at the problem that the evacuation platform occupies a part of space of a tunnel, so that the narrow space is crowded, and the tunnel is not beneficial to being put into use, and the following technical scheme is provided: the system comprises a tunnel body and an evacuation mechanism for evacuating people, wherein the evacuation mechanism is arranged in the tunnel body; and the positioning assembly is used for retracting the evacuation mechanism and is arranged on the evacuation mechanism. The utility model is convenient for people to evacuate, and meanwhile, when not in use, the dispersing plate can be retracted, thereby effectively saving the space in the tunnel body and ensuring the smoothness of the tunnel body.

Description

A retractable small evacuation platform

Technical Field

The utility model relates to the technical field of evacuation platforms, in particular to a retractable small evacuation platform.

Background Art

In a shield tunnel, an evacuation platform is often set up to meet the evacuation needs. Since the space in the shield tunnel is often narrow, the evacuation platform will occupy a part of the space, making the already narrow space more crowded, which is not conducive to the use of the tunnel. In view of this, the utility model proposes a retractable small evacuation platform.

Utility Model Content

The utility model aims to propose a retractable small evacuation platform to solve the problem in the background technology that an evacuation platform occupies a part of the tunnel space, thereby making the already narrow space more crowded and not conducive to the use of the tunnel.

The technical solution of the utility model is as follows: a retractable small evacuation platform, comprising a tunnel body and an evacuation mechanism for evacuating personnel, the evacuation mechanism being installed in the tunnel body, the evacuation mechanism comprising a fixed plate installed on the inner wall of the tunnel body, a plurality of fixed blocks being fixedly connected to one side of the fixed plate, a rotating rod being rotatably connected between the plurality of fixed blocks, an outer ring of the rotating rod being fixedly connected to the evacuation plate, the evacuation mechanism also comprising a hydraulic cylinder installed in the fixed plate, an output end of the hydraulic cylinder being fixedly connected to a rack, the rack being slidably connected to the fixed plate, a gear being also sleeved and installed on the outer ring of the rotating rod, the rack being meshed with the gear; a positioning component for retracting the evacuation mechanism, the positioning component being installed on the evacuation mechanism, the positioning component comprising a servo motor installed in the fixed plate, an output end of the servo motor being fixedly connected to a connecting rod, a limiting rod being also installed at one end of the connecting rod away from the servo motor.

Optionally, a plurality of groups of limit plates are installed on one side of the evacuation plate.

Optionally, both sides of the rack are fixedly connected to limit bars, and the limit bars are slidably connected in the fixed plate.

Optionally, the positioning assembly further comprises a slot formed on a side of the evacuation plate away from the fixed plate, and the evacuation plate further comprises a through hole formed on the evacuation plate corresponding to the limiting rod.

Compared with the prior art, the utility model has the following beneficial technical effects:

The utility model provides multiple evacuation mechanisms and evacuation boards to support personnel and facilitate evacuation of personnel. At the same time, the evacuation boards are matched with racks and gears so that the evacuation boards can be automatically opened or retracted, effectively saving space when not in use.

The utility model provides a limit rod, and when the evacuation plate is folded, the limit rod can be rotated to limit the evacuation plate, thereby preventing the evacuation plate from accidentally opening, ensuring the smooth flow of the tunnel body and facilitating the use of the tunnel body.

In summary, the utility model facilitates the evacuation of personnel, and the evacuation plate can be folded up when not in use, which effectively saves space in the tunnel body and ensures the smooth flow of the tunnel body.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a perspective view of a retractable small evacuation platform;

FIG2 is a schematic cross-sectional view of the evacuation mechanism;

FIG. 3 is an enlarged schematic diagram of point A in FIG. 1 .

Reference numerals:

1. Tunnel body;

2. Evacuation mechanism; 21. Fixed plate; 22. Fixed block; 23. Rotating rod; 24. Evacuation plate; 25. Limiting plate; 26. Hydraulic cylinder; 27. Rack; 28. Gear; 29. Limiting strip;

3. Positioning assembly; 31. Servo motor; 32. Connecting rod; 33. Limiting rod; 34. Slot; 35. Through hole.

DETAILED DESCRIPTION

The technical solution of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present utility model, rather than all of the embodiments.

The components of the embodiments of the present invention generally described and shown in the drawings herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the utility model claimed, but only represents the selected embodiments of the utility model.

Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present utility model.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

Example

As shown in Figures 1 and 2, the utility model proposes a retractable small evacuation platform, including a tunnel body 1, which is constructed by the prior art. An evacuation mechanism 2 for evacuating personnel is installed in the tunnel body 1. The evacuation mechanism 2 includes a fixed plate 21 installed on the inner wall of the tunnel body 1, and the position of the fixed plate 21 is fixed. Four groups of fixed blocks 22 are fixedly connected to one side of the fixed plate 21, and the positions of the fixed blocks 22 are also fixed. A rotating rod 23 is rotatably connected between the multiple groups of fixed blocks 22, and the rotating rod 23 rotates in place. The outer ring of the rotating rod 23 is fixedly connected to an evacuation plate 24, and the rotating rod 23 rotates synchronously with the evacuation plate 24. The evacuation plate 24 is rotatably connected to one side of the fixed plate 21 through the rotating rod 23, and the evacuation plate 24 rotates around the rotating rod 23 as an axis. The evacuation plate 24 is used for support. During evacuation, the evacuation plate 24 is in a horizontal state. People step on the evacuation plate 24 to pass through the tunnel body 1. At the same time, the side of the evacuation plate 24 close to the fixed plate 21 is a rough surface with a large friction force to prevent slipping. Two sets of limit plates 25 are also installed on one side of the evacuation plate 24, which are used to contact the bottom of the fixed plate 21 when the evacuation plate 24 is in a horizontal state, thereby preventing the evacuation plate 24 from tilting downward. The evacuation mechanism 2 also includes a hydraulic cylinder 26 installed in the fixed plate 21. The output end of the hydraulic cylinder 26 is fixedly connected to a rack 27, and the hydraulic cylinder 26 is used to drive the rack 27 to move. The rack 27 is slidably connected to the fixed plate 21, and the rack 27 moves up and down in the fixed plate 21. The outer ring of the rotating rod 23 is also sleeved with a gear 28, and the rotating rod 23 rotates synchronously with the gear 28. The rack 27 is meshed with the gear 28, and is used to drive the gear 28 to rotate when the rack 27 moves, and the rotating rod 23 and the evacuation plate 24 rotate at the same time. The two sides of the rack 27 are fixedly connected with the limit bars 29, and the limit bars 29 are slidably connected in the fixed plate 21. The limit bars 29 are used to limit the position of the rack 27 when it moves, so that the rack 27 moves smoothly and remains stable when the rack 27 and the gear 28 are meshed.

Further, please refer to Figures 2 and 3. The above-mentioned evacuation platform includes a positioning assembly 3 for retracting the evacuation mechanism 2, and the positioning assembly 3 is installed on the evacuation mechanism 2. The positioning assembly 3 includes a servo motor 31 installed in the fixed plate 21, and the output end of the servo motor 31 is fixedly connected to a connecting rod 32, and the servo motor 31 is used to drive the connecting rod 32 to rotate. A limiting rod 33 is also installed at the end of the connecting rod 32 away from the servo motor 31, and the limiting rod 33 is driven to rotate by the servo motor 31 through the connecting rod 32. The positioning assembly 3 also includes a card slot 34 opened on the side of the evacuation plate 24 away from the fixed plate 21. The opening of the card slot 34 facilitates the card slot 34 to facilitate the limiting rod 33 to be stuck in the card slot 34, thereby preventing the evacuation plate 24 from accidentally opening after an unexpected power failure. A through hole 35 corresponding to the limiting rod 33 is also provided on the evacuation plate 24. The length and width of the through hole 35 are both greater than the limiting rod 33. The opening of the through hole 35 facilitates the limiting rod 33 to enter the slot 34, so that the limiting rod 33 can prevent the evacuation plate 24 from opening in the slot 34 after rotating ninety degrees.

In this embodiment, first, when it is needed, the servo motor 31 is started, and the servo motor 31 drives the limit rod 33 to rotate through the connecting rod 32. At this time, the limit rod 33 is aligned with the through hole 35, and the limit rod 33 is no longer stuck in the card slot 34 to limit the evacuation plate 24. At this time, the hydraulic cylinder 26 can be started, and the output end of the hydraulic cylinder 26 is shortened to drive the rack 27 to move upward, and the rack 27 moves upward smoothly under the limiting action of the two sets of limit bars 29 on both sides. At this time, the rack 27 is meshed with the gear 28, thereby driving the gear 28 to rotate in the original position. When the gear 28 rotates, it drives the rotating rod 23 and the evacuation plate 24 to rotate synchronously. Due to the setting of the fixed block 22, the rotating rod 23 and the evacuation plate 24 are both rotated in the original position. At this time, the evacuation plate 24 begins to slowly rotate from the vertical state to the horizontal state. After the evacuation plate 24 is horizontal, the limit plate 25 contacts the bottom of the fixed plate 21, so that the evacuation plate 24 can maintain a stable horizontal state. At this time, people can quickly evacuate through the top of the evacuation plate 24. When not in use, the hydraulic cylinder 26 is started to extend, so that the rack 27 drives the gear 28 to rotate in the opposite direction, and the evacuation plate 24 is changed from the horizontal state to the vertical state. At the same time, the limit rod 33 enters the card slot 34 through the through hole 35. The limit rod 33 rotates ninety degrees and is stuck in the card slot 34. The evacuation plate 24 is limited, which can prevent the evacuation plate 24 from accidentally opening after an accidental power failure and causing a safety accident.

The above specific embodiment is only an optional embodiment of the present invention. Based on the technical solution of the present invention and the relevant inspiration of the above embodiment, those skilled in the art can make various alternative improvements and combinations to the above specific embodiment.

Claims (4)

1. A retractable small evacuation platform, comprising a tunnel body (1), characterized in that: An evacuation mechanism (2) for evacuating personnel, the evacuation mechanism (2) being installed in a tunnel body (1), the evacuation mechanism (2) comprising a fixed plate (21) installed on the inner wall of the tunnel body (1), a plurality of fixed blocks (22) being fixedly connected to one side of the fixed plate (21), a rotating rod (23) being rotatably connected between the plurality of fixed blocks (22), an outer ring of the rotating rod (23) being fixedly connected to an evacuation plate (24), the evacuation mechanism (2) further comprising a hydraulic cylinder (26) installed in the fixed plate (21), an output end of the hydraulic cylinder (26) being fixedly connected to a rack (27), the rack (27) being slidably connected to the fixed plate (21), a gear (28) being sleeved and installed on the outer ring of the rotating rod (23), the rack (27) being meshed with the gear (28); A positioning assembly (3) for folding the evacuation mechanism (2), the positioning assembly (3) being mounted on the evacuation mechanism (2), the positioning assembly (3) comprising a servo motor (31) mounted in a fixing plate (21), the output end of the servo motor (31) being fixedly connected to a connecting rod (32), and a limiting rod (33) being mounted on one end of the connecting rod (32) away from the servo motor (31). 2. A retractable small evacuation platform according to claim 1, characterized in that a plurality of limit plates (25) are installed on one side of the evacuation plate (24). 3. A retractable small evacuation platform according to claim 1, characterized in that both sides of the rack (27) are fixedly connected to limit strips (29), and the limit strips (29) are slidably connected in the fixed plate (21). 4. A retractable small evacuation platform according to claim 1, characterized in that the positioning assembly (3) further comprises a slot (34) provided on the side of the evacuation plate (24) away from the fixed plate (21), and the evacuation plate (24) is further provided with a through hole (35) corresponding to the limiting rod (33).