Assembled subway tunnel portal steel ring

Abstract

The utility model discloses an assembly type subway tunnel portal steel ring which comprises a steel ring body and connecting seats, the connecting seats are fixedly connected with a plurality of connecting rods which are symmetrically arranged, connecting grooves are formed in the positions, corresponding to the connecting rods, of the steel ring body, and the steel ring body is fixedly connected with fixing plates which are symmetrically arranged. Fixing grooves are formed in the fixing plates, a plurality of mounting plates which are symmetrically arranged are fixedly connected to the connecting seats, threaded sleeves are jointly and fixedly connected between the adjacent mounting plates, threaded rods are in threaded connection to the threaded sleeves, a plurality of guide rods which are symmetrically arranged are fixedly connected to the mounting plates, and the guide rods are fixedly connected to the connecting seats. The steel ring connecting device has the advantages that the two steel rings can form a complete steel ring through the connecting base, the two steel rings can be arranged at the top end and the bottom end of a tunnel portal in a sleeved mode respectively, workers do not need to keep the stability of the steel rings all the time during sleeving, and therefore the working difficulty of sleeving the steel rings by the workers is reduced, and the convenience of installing the steel rings is improved.

Description

Technical Field

[0001] This utility model relates to the field of subway tunnel portal technology, specifically an assembled subway tunnel portal steel ring. Background Technology

[0002] The portal of a subway tunnel is an important component of the subway tunnel structure. It not only has a practical function, but also carries a certain aesthetic value. The portal is the face of the tunnel and the sign of the tunnel entrance and exit. The portal needs to be supported by steel rings.

[0003] The front end of the tunnel extends beyond the tunnel itself; this is the portal. Steel rings need to be fitted onto the portal. However, existing steel rings are all one-piece structures, which are very troublesome to fit together and require a very high level of stability. This causes some inconvenience to the workers. Utility Model Content

[0004] The purpose of this invention is to provide an assembled subway tunnel portal steel ring to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: an assembled subway tunnel portal steel ring, comprising a steel ring and a connecting seat. Multiple symmetrically arranged connecting rods are fixedly connected to each connecting seat. A connecting groove is provided on each steel ring at the position corresponding to the connecting rod. A symmetrically arranged fixing plate is fixedly connected to each steel ring. Each fixing plate has a fixing groove. Multiple symmetrically arranged mounting plates are fixedly connected to each connecting seat. A threaded sleeve is fixedly connected between adjacent mounting plates. A screw is threaded onto each threaded sleeve. Multiple symmetrically arranged guide rods are fixedly connected to each mounting plate. A lifting plate is slidably connected between adjacent guide rods. A symmetrically arranged fixing rod is fixedly connected to each lifting plate. A pressure-bearing seat is fixedly connected to one end of each lifting plate corresponding to the screw.

[0006] Preferably, the connecting rods are all T-shaped, and the connecting grooves are all T-shaped.

[0007] Preferably, the connecting rods are all slidably connected inside the corresponding connecting grooves.

[0008] Preferably, one of the outer walls of the pressure bearing seat is inclined.

[0009] Preferably, there are two steel rings, and the two steel rings are the same size and shape.

[0010] Compared with the prior art, the beneficial effects of this utility model are: two steel rings can be combined into a complete steel ring through the connecting seat, and the two steel rings can be respectively fitted onto the top and bottom of the opening. When fitting the rings, the workers do not need to keep the steel rings stable at all times, thereby reducing the difficulty of fitting the steel rings and improving the convenience of steel ring installation. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the main structure of this utility model;

[0012] Figure 2 This is a schematic diagram of the separation structure of the connecting seat and the steel ring of this utility model;

[0013] Figure 3 This is a schematic diagram of the screw and threaded sleeve separation structure of this utility model;

[0014] Figure 4 This is a schematic diagram showing the specific location and structure of the pressure bearing seat on the lifting plate of this utility model.

[0015] In the diagram: 1. Steel ring; 2. Connecting seat; 3. Connecting rod; 4. Connecting groove; 5. Fixing plate; 6. Fixing groove; 7. Mounting plate; 8. Threaded sleeve; 9. Screw; 10. Guide rod; 11. Lifting plate; 12. Fixing rod; 13. Pressure bearing seat. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Please see Figure 1-4 This utility model provides a technical solution: an assembled subway tunnel portal steel ring, including a steel ring 1 and a connecting seat 2. Multiple connecting rods 3 are symmetrically arranged and fixedly connected to the connecting seat 2. A connecting groove 4 is provided on the steel ring 1 at the position corresponding to the connecting rod 3. A fixing plate 5 is symmetrically arranged and fixedly connected to the steel ring 1. A fixing groove 6 is provided on each fixing plate 5. Multiple mounting plates 7 are symmetrically arranged and fixedly connected to the connecting seat 2. A threaded sleeve 8 is fixedly connected between adjacent mounting plates 7. A screw 9 is threadedly connected to each threaded sleeve 8. Multiple guide rods 10 are symmetrically arranged and fixedly connected to each mounting plate 7. A lifting plate 11 is slidably connected between adjacent guide rods 10. A fixing rod 12 is symmetrically arranged and fixedly connected to each lifting plate 11. A pressure bearing seat 13 is fixedly connected to each end of the screw 9 on the lifting plate 11.

[0018] The connecting rods 3 and the connecting grooves 4 are all T-shaped. The T-shaped connecting rods 3 prevent the steel rings 1 from moving up and down. The connecting rods 3 are slidably connected inside the corresponding connecting grooves 4. The connection between the connecting rods 3 and the connecting grooves 4 facilitates the assembly of the upper and lower steel rings 1 into a complete whole. One of the outer walls of the pressure seat 13 is inclined. When the screw 9 moves, it is convenient to squeeze the inclined outer wall of the pressure seat 13. There are two steel rings 1 in total. The two steel rings 1 are the same in size and shape.

[0019] Specifically, when using this utility model, two steel rings 1 are placed at the top and bottom of the opening, and then the connecting seat 2 is placed between the two steel rings 1. The connecting rod 3 on the connecting seat 2 is inserted into the connecting groove 4 on the steel ring 1. After insertion, the screw 9 can be rotated by an external tool. The rotation of the screw 9 will move towards the pressure seat 13 through the threaded sleeve 8. At this time, the moving screw 9 will squeeze the inclined outer wall of the pressure seat 13, and the pressure seats 13 will move passively. At this time, the upper and lower pressure seats 13 will move in opposite directions. The movement of the pressure seats 13 will drive the lifting plate 11 to move. At this time, the guide rod 10 will guide the movement of the lifting plate 11. The movement of the lifting plate 11 will drive the fixing rod 12 to move towards the fixing groove 6. Then the moving fixing rod 12 will be inserted into the interior of the fixing groove 6. At this time, the position of the connecting seat 2 is fixed, and the connecting seat 2 and the two steel rings 1 form a complete whole, which is convenient to operate.

[0020] 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 assembled subway tunnel portal steel ring, characterized in that: The system includes a steel ring (1) and a connecting seat (2). Each connecting seat (2) is fixedly connected to a plurality of symmetrically arranged connecting rods (3). Each steel ring (1) is provided with a connecting groove (4) at the position corresponding to the connecting rod (3). Each steel ring (1) is fixedly connected to a symmetrically arranged fixing plate (5). Each fixing plate (5) is provided with a fixing groove (6). Each connecting seat (2) is fixedly connected to a plurality of symmetrically arranged mounting plates (7). Each adjacent mounting plate (7) is fixedly connected to a threaded sleeve (8). Each threaded sleeve (8) is threadedly connected to a screw (9). Each mounting plate (7) is fixedly connected to a plurality of symmetrically arranged guide rods (10). Each adjacent guide rod (10) is slidably connected to a lifting plate (11). Each lifting plate (11) is fixedly connected to a symmetrically arranged fixing rod (12). Each lifting plate (11) is fixedly connected to a pressure bearing seat (13) at the position corresponding to one end of the screw (9).

2. The assembled subway tunnel portal steel ring according to claim 1, characterized in that: The connecting rod (3) is T-shaped, and the connecting groove (4) is T-shaped.

3. The assembled subway tunnel portal steel ring according to claim 1, characterized in that: The connecting rods (3) are all slidably connected inside the corresponding connecting grooves (4).

4. The assembled subway tunnel portal steel ring according to claim 1, characterized in that: One of the outer walls of the pressure bearing seat (13) is inclined.

5. The assembled subway tunnel portal steel ring according to claim 1, characterized in that: There are two steel rings (1), and the two steel rings (1) are the same in size and shape.

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