CN212376489U

CN212376489U - Emergency door lower hinge and emergency door thereof

Info

Publication number: CN212376489U
Application number: CN202020477594.6U
Authority: CN
Inventors: 郭磊; 刘瑜; 王兴宁
Original assignee: Beijing Bii Erg Transportation Technology Co ltd
Current assignee: Beijing Bii Erg Transportation Technology Co ltd
Priority date: 2020-04-03
Filing date: 2020-04-03
Publication date: 2021-01-19
Anticipated expiration: 2030-04-03

Abstract

The utility model discloses a hinge under emergency door, include: the lower hinge body of the emergency door is provided with a door shaft hole and a door opening limiting groove; and the limiting spring piece is fixed on the lower hinge body of the emergency door. The utility model discloses a still disclose an emergency door that contains hinge under above-mentioned emergency door. The utility model discloses utilize the elastic deformation of spring leaf, make the location axle take place to interfere with the spring leaf at the in-process that opens the door, the spring leaf warp and resets, reaches the limit function when opening (for example 90 degrees) completely to emergency exit. The lower hinge has simple structure and low cost; and because the lower hinge is connected with the spring piece by the screw, the replacement and the maintenance are convenient.

Description

Emergency door lower hinge and emergency door thereof

Technical Field

The utility model relates to a rail transit technical field especially relates to a hinge under emergency door and emergency door thereof.

Background

The emergency door is a component of a safety door system of a station such as a subway. In a normal state, the panic door is in a closed state, and in an emergency, the panic door needs to be opened. An emergency door includes a door frame and a door body mounted on the door frame and rotatably attached to the door frame, typically using hinges. Under the emergency condition, the emergency door body is positioned after being opened so as to ensure the smooth passage of the passenger safety.

The existing door body is positioned by adopting a hydraulic door closer, and the hydraulic door closer realizes the control of the door closing process by throttling the liquid in the door closer to achieve the buffering effect; however, the hydraulic door closer is bulky, requires a large installation space, and is high in cost and inconvenient to maintain.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem who exists among the background art, the utility model provides a hinge under emergency door and emergency door thereof to solve the positioning problem after emergency door in the subway platform door is opened.

The utility model provides a hinge under emergency door for install the emergency door body on the emergency door frame, include:

the lower hinge body of the emergency door is provided with a door shaft hole and a door opening limiting groove;

and the limiting spring piece is fixed on the lower hinge body of the emergency door.

Preferably, the limiting spring piece comprises a front section, a middle section and a rear section which are connected into a whole, wherein the front section is a plane; the middle section is a cambered surface and is fixed corresponding to a positioning shaft on the emergency door body; the back section is a plane and is fixed with the lower hinge body.

Preferably, the limiting spring piece is fixed on the lower hinge body of the emergency door through a cross-recessed pan head bolt.

Preferably, the lower hinge body of the emergency door is fixed on the threshold of the emergency door by using a hexagonal head bolt.

The utility model provides a pair of emergency door, including the emergency door body and emergency door frame, its characterized in that, the emergency door body is installed on the emergency door frame through hinge under the emergency door.

Preferably, the emergency door body is provided with a glass window.

The utility model discloses in, utilize the elastic deformation of the spring leaf on the hinge down, make the location axle on the door body take place to interfere with the spring leaf at the in-process that opens the door, the spring leaf warp and resets, reaches the limit function when opening (for example 90 degrees) completely corresponding urgent door body. The lower hinge has simple structure and low cost; and because the lower hinge body is connected with the spring piece by the screw, the replacement and the maintenance are convenient.

Drawings

Fig. 1 is a partial schematic view of an emergency door frame according to an embodiment of the present invention;

fig. 2 is a structural view of a lower hinge of an emergency door according to an embodiment of the present invention;

fig. 3 is a bottom view of the lower hinge of the emergency door according to the embodiment of the present invention;

fig. 4 is a front view of the lower hinge of the emergency door according to the embodiment of the present invention;

fig. 5 is a left side view of the lower hinge of the emergency door according to the embodiment of the present invention;

fig. 6 is a top view of the lower hinge of the emergency door according to the embodiment of the present invention;

fig. 7 is a perspective view of the lower hinge of the emergency door according to the embodiment of the present invention;

fig. 8 is a structural view of a door body of an emergency door according to an embodiment of the present invention;

fig. 9 is a partially enlarged view of a portion a in fig. 8.

Detailed Description

The embodiment of the utility model provides a hinge under emergency door for install the emergency door body 22 on the emergency door frame. As shown in fig. 8 and 9, the lower part of the back stop (i.e. the side close to the door shaft) of the emergency door body 22 is welded with a lower hinge block 23, and the door shaft 25 and the positioning shaft 24 are welded and fixed on the lower hinge block 23.

A partial schematic view of a door frame for an emergency door is shown in fig. 1 and comprises: the emergency door comprises an emergency door upright post 1, an emergency door lower hinge body 2 and an emergency door threshold 3; the lower hinge body 2 of the emergency door is fixed on the threshold 3 of the emergency door through the hexagon head bolt 5, the lower hinge body 2 of the emergency door is provided with the limiting spring piece 4 to form the lower hinge of the emergency door, and the limiting spring piece 4 is fixed on the lower hinge body 2 of the emergency door through the cross-recessed pan head bolt 6.

As shown in fig. 2 to 7, the lower hinge of the emergency door includes a lower hinge body 2 of the emergency door and a limit spring plate 4. The lower hinge body 2 of the emergency door is provided with a door shaft hole 31 and a door opening limiting groove 32, wherein the door shaft hole 31 is used for butting against a fixed door shaft 25 of the emergency door body 22, so that the emergency door body 22 can rotate around the fixed door shaft 25 to realize the opening and closing of the emergency door body 22; the opening limiting groove 32 is used for abutting against the positioning shaft 24 of the emergency door body 22, so that the positioning shaft 24 can only rotate by 0-90 degrees, and the opening angle of the emergency door body 22 is 0-90 degrees. In the process of opening the emergency door body 22, the limit of the movement of the auxiliary positioning shaft 24 on the lower hinge block 23 is realized by elastic deformation and reset of the limiting elastic sheet 4 fixed on the lower hinge body 2 of the emergency door, and the specific states include the positioning shaft position 24a when the emergency door body is closed and the positioning shaft position 24b when the emergency door body is opened, so that the emergency door body is positioned 90 degrees after the emergency door body is opened. The limiting spring piece 4 comprises a front section 41, a middle section 42 and a rear section 43 which are connected into a whole, wherein the front section 41 is a plane; the middle section 42 is a cambered surface, so that the positioning shaft 24 can be fixed conveniently; the rear section 43 is a flat surface and is fixed to the lower hinge body 2.

The embodiment of the utility model provides a contain emergency door of hinge under above-mentioned emergency door, hinge installs the emergency door body 22 on the emergency door frame under the above-mentioned emergency door. The emergency door body 22 may be provided with a glass window 21.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a hinge under emergency door for install emergency door body (22) on emergency door frame, its characterized in that includes:

the lower hinge body (2) of the emergency door is provided with a door shaft hole (31) and a door opening limiting groove (32);

and the limiting spring piece (4) is fixed on the lower hinge body (2) of the emergency door.

2. The lower hinge of claim 1, wherein the spring plate (4) comprises a front section (41), a middle section (42) and a rear section (43) which are integrally connected, wherein the front section (41) is a plane; the middle section (42) is an arc surface and is fixed on a positioning shaft (24) on the emergency door body (22); the rear section (43) is a plane and is fixed with the lower hinge body (2).

3. The lower hinge for emergency doors according to claim 1, characterized in that the limit spring plate (4) is fixed to the lower hinge body (2) of the emergency door by means of a cross-head bolt (6).

4. The lower hinge for emergency doors according to claim 1, characterized in that the lower hinge body (2) for emergency doors is fixed to the doorsill (3) of the emergency door by means of a hexagon bolt (5).

5. An emergency door comprising an emergency door body and an emergency door frame, wherein the emergency door body is mounted to the emergency door frame by means of an emergency door lower hinge according to any one of claims 1 to 4.

6. Emergency door according to claim 5, characterized in that the door body (22) of the emergency door is provided with a glass window (21).