CN219622728U - A support device for subway engineering construction - Google Patents

Description

A support device for subway engineering construction

technical field

The utility model relates to the technical field of subway engineering, in particular to a support device for subway engineering construction.

Background technique

Subway is a form of railway transportation. It refers to the urban rail transit system that mainly operates underground. During construction, the subway project needs to support and protect the tunnel while constructing, so as to prevent the subway tunnel under construction from collapsing and surface settlement. Reduce impact on existing buildings.

Existing publication number is " CN214533025U " " a kind of support device of subway project " patent: comprise base plate, both ends of the upper surface of described base plate are all fixedly connected with supporting column, and the top middle part of described supporting column is provided with slot, A support screw is plugged into the slot, a connecting plate is fixedly connected to the top of the supporting screw, a connecting block is fixedly connected to the middle of the upper surface of the connecting plate, and both sides of the connecting block are movably connected by a pin There are a plurality of connecting rods, and a plurality of arc-shaped plates are arranged above the connecting plate, the middle part of one side of the arc-shaped plate is fixedly connected with a limiting block, and the middle part of the other side of the arc-shaped plate is provided with a limiting groove, The limiting block is located in the limiting groove, one end of the upper surface of the connecting plate is provided with a limiting groove, the other end of the upper surface of the connecting plate is fixedly connected with the limiting block, and the middle part of the bottom end of the arc-shaped plate is provided with a limiting groove. The middle part of the top of the connecting rod is movably connected with a movable block through a bearing, and the top of the movable block is fixedly connected with a limit screw. By turning the nut, the supporting screw drives the connecting plate to move upwards, so that the curved plates are spliced together. The formed arc-shaped support plate is attached to the top of the tunnel, and the arc-shaped plate can be lifted by the connecting plate after being assembled on the ground, thereby reducing the difficulty of installation.

However, the above-mentioned patent still has deficiencies in the actual use process: when the patent is actually used, it is necessary to manually turn the screw so that the arc-shaped plate moves upward to fit the top of the tunnel for support. This method requires a lot of manpower and is relatively It is troublesome, and the width of the whole device cannot be adjusted, so it cannot be applied to subway tunnels of different sizes.

Utility model content

The purpose of the utility model is to solve the shortcomings in the prior art, and propose a support device for subway engineering construction.

In order to achieve the above object, the utility model adopts the following technical solutions:

A construction support device for a subway project, comprising a base plate, two chutees are symmetrically provided on the top of the base plate, two support columns are symmetrically slidably connected to the inner walls of the two chute channels, and two support columns are symmetrically provided inside the two support columns. Two vertical slots, the inner walls of the two vertical slots are symmetrically slidably connected with two support rods, the upper ends of the two support rods pass through the upper ends of the support columns and are fixedly connected with two support plates, and the upper ends of the two support plates are fixed A plurality of ejector rods are connected, and the upper ends of the plurality of ejector rods are fixedly connected with arc-shaped support blocks.

Preferably, one side wall of the support plate is provided with a connection groove, the other side wall of the support plate is fixedly connected with a connection plate, and the side wall of the connection plate is slidably connected with the inner wall of the connection groove.

Preferably, a first drive mechanism is installed in the chute, and the first drive mechanism includes a bidirectional lead screw that is rotatably connected to the inner walls of the two chute, and the side walls of the bidirectional lead screw are screwed to the two support columns, The side wall of the bottom plate is fixedly connected with a first motor, and the output end of the first motor passes through the side wall of the bottom plate and is fixedly connected with a bidirectional lead screw.

Preferably, a second driving mechanism is installed in the vertical groove, the second driving mechanism includes two lead screws symmetrically rotatably connected to the inner walls of the two vertical grooves, and the side walls of the two lead screws are screwed to the support rod .

Preferably, the second driving mechanism further includes a rotating shaft rotatably connected to the inner wall of the vertical groove, the side wall of the rotating shaft is fixedly connected with the first bevel gear, the side wall of the lead screw is fixedly connected with the second bevel gear, and the first bevel gear is fixedly connected with the side wall of the screw. One bevel gear is engaged with the second bevel gear.

Preferably, two reinforcing rods are symmetrically fixedly connected to the side walls of the two supporting rods close to each other, and the upper ends of the two reinforcing rods are respectively fixedly connected to the lower ends of the two supporting plates.

The utility model has the following beneficial effects:

1. By setting the second drive mechanism and driving the second motor to rotate, the support rod can be driven to move, and then a plurality of arc-shaped support blocks can be moved upward to fit and support the top of the subway tunnel. The mechanical structure adopted is relatively It is more time-saving and labor-saving than manual work, and it is more convenient to use.

2. By setting the chute, the support column and the first driving mechanism, and by driving the first motor to rotate, the support column can be driven to slide on the inner wall of the chute, so that the width of the entire device can be adjusted, which is convenient for subway tunnels of different sizes. , with a wider scope of application.

Description of drawings

Fig. 1 is the structural representation of a kind of subway engineering construction supporting device that the utility model proposes;

Figure 2 is an enlarged schematic view of the structure at A in Figure 1;

FIG. 3 is an enlarged schematic view of the structure at B in FIG. 1 .

In the figure: 1 bottom plate, 2 chute, 3 support column, 4 vertical slot, 5 support rod, 6 support plate, 7 ejector rod, 8 arc-shaped support block, 9 connection groove, 10 connection plate, 11 two-way screw, 12 The first motor, 13 leading screws, 14 rotating shafts, 15 first bevel gears, 16 second bevel gears, 17 second motors, 18 reinforcing rods.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example.

Referring to Figures 1-3, a construction support device for a subway project includes a base plate 1, two chute 2 are symmetrically opened on the upper end of the base plate 1, two support columns 3 are symmetrically slidably connected to the inner walls of the two chute 2, and the two support Two vertical grooves 4 are symmetrically opened in the column 3, and two support rods 5 are symmetrically slidingly connected to the inner walls of the two vertical grooves 4. The upper ends of each support plate 6 are fixedly connected with a plurality of ejector rods 7 , and the upper ends of the plurality of ejector rods 7 are fixedly connected with arc-shaped support blocks 8 .

One of the support plates 6 side walls is provided with a connection groove 9, and the other support plate 6 side walls are fixedly connected with a connection plate 10, and the side walls of the connection plate 10 are slidably connected with the connection groove 9 inner walls. During adjustment, the connecting plate 10 will slide on the inner wall of the connecting groove 9, and the connecting plate 10 will abut against the inner wall of the connecting groove 9, which can provide part of the supporting force.

The first driving mechanism is installed in the chute 2, and the first driving mechanism includes a two-way screw 11 that is rotationally connected to the inner walls of the two chute 2. The first motor 12 is fixedly connected, the output end of the first motor 12 runs through the side wall of the bottom plate 1 and is fixedly connected with the two-way screw 11, the side wall of the support column 3 is offset against the inner wall of the chute 2, so that the support column 3 will not follow the two-way direction. Leading screw 11 rotates together.

The second drive mechanism is installed in the vertical groove 4, and the second drive mechanism includes two leading screws 13 that are symmetrically rotated and connected to the inner walls of the two vertical grooves 4, and the side walls of the two leading screws 13 are threaded with the support rod 5, and the support rod 5 The side wall is against the inner wall of the vertical groove 4, so that the support rod 5 cannot rotate together with the leading screw 13.

The second drive mechanism also includes a rotating shaft 14 that is rotatably connected to the inner wall of the vertical groove 4, the side wall of the rotating shaft 14 is fixedly connected with the first bevel gear 15, the side wall of the leading screw 13 is fixedly connected with the second bevel gear 16, and the first bevel gear 15 is connected with the second bevel gear 16. The second bevel gear 16 is meshedly connected.

Two reinforcing rods 18 are symmetrically fixedly connected to the side walls of the two supporting rods 5 close to each other, and the upper ends of the two reinforcing rods 18 are fixedly connected to the lower ends of the two supporting plates 6 respectively. A triangle is formed between the support plates 6, thereby providing stable support.

In the utility model, the base plate 1 is first installed on the ground of the subway tunnel, and then the first motor 12 is driven to rotate, which drives the two-way lead screw 11 to rotate, and drives the two supporting columns 3 to slide close to or away from each other, so that the whole device Width applies to the width of the tunnel.

Then drive two second motors 17 to rotate, drive the rotating shaft 14 to rotate, drive the first bevel gear 15 to rotate, drive the second bevel gear 16 to rotate, drive the two leading screws 13 to rotate, drive the two support rods 5 to move upwards synchronously, and then The two support plates 6 are driven to move upwards synchronously, and the plurality of ejector rods 7 are driven to move upwards, thereby causing the plurality of arc-shaped support blocks 8 to move upwards to fit with the top of the tunnel, thereby supporting the tunnel.

The above is only a preferred embodiment of the utility model, but the scope of protection of the utility model is not limited thereto. The equivalent replacement or change of the new technical solution and the concept of the utility model shall be covered by the protection scope of the utility model.

Claims (6)

1. A support device for subway engineering construction, comprising a base plate (1), characterized in that, the upper end of the base plate (1) is symmetrically provided with two chutes (2), and the inner walls of the two chutes (2) are symmetrical Two supporting columns (3) are slidingly connected, and two vertical grooves (4) are symmetrically opened in the two supporting columns (3), and two supporting rods are symmetrically slidingly connected on the inner walls of the two vertical grooves (4) (5), the upper ends of the two support rods (5) run through the upper ends of the support columns (3) and are fixedly connected with two support plates (6), and the upper ends of the two support plates (6) are fixedly connected with a plurality of tops Rods (7), the upper ends of a plurality of push rods (7) are fixedly connected with arc-shaped support blocks (8). 2. A support device for subway engineering construction according to claim 1, characterized in that, one of the support plates (6) side wall is provided with a connecting groove (9), and the other support plate (6) A connecting plate (10) is fixedly connected to the side wall, and the side wall of the connecting plate (10) is slidably connected to the inner wall of the connecting groove (9). 3. A kind of support device for subway engineering construction according to claim 2, characterized in that, a first drive mechanism is installed in the chute (2), and the first drive mechanism includes two slides that are rotatably connected. The two-way lead screw (11) on the inner wall of the groove (2), the side wall of the two-way lead screw (11) is threadedly connected with the two support columns (3), and the side wall of the bottom plate (1) is fixedly connected with the first motor (12 ), v. the output end of the first motor (12) penetrates the side wall of the bottom plate (1) and is fixedly connected with the two-way lead screw (11). 4. A kind of support device for subway engineering construction according to claim 3, characterized in that, a second drive mechanism is installed in the vertical groove (4), and the second drive mechanism includes two symmetrically rotated connections. Two leading screws (13) on the inner wall of the vertical groove (4), and the side walls of the two leading screws (13) are threadedly connected with the support rod (5). 5. A kind of subway engineering construction support device according to claim 4, is characterized in that, described second driving mechanism also comprises the rotating shaft (14) that is rotationally connected in vertical groove (4) inner wall, and described rotating shaft (14 ) side wall is fixedly connected with the first bevel gear (15), and the side wall of the leading screw (13) is fixedly connected with the second bevel gear (16), and the first bevel gear (15) and the second bevel gear (16) ) mesh connection. 6. a kind of subway engineering construction supporting device according to claim 5 is characterized in that, two reinforcing rods (18) are fixedly connected to the side walls of two said support rods (5) close to each other symmetrically, two The upper ends of the reinforcing rods (18) are respectively fixedly connected with the lower ends of the two support plates (6).