Flexible top cover trolley for straight wall type arched tunnel

Abstract

The utility model provides a straight wall type arch tunnel flexible top cover trolley which comprises a plurality of portal stand columns, the adjacent portal stand columns are connected through shear frames, straight wall arch molds are arranged at the two ends of the portal stand columns, rotating arc-shaped formworks are arranged at the tops of the straight wall arch molds, top molds are arranged at the tops of the portal stand columns, and the two ends of the top molds abut against the arc-shaped formworks to slide. And the multiple jacks are adjusted, so that the straight wall arch formwork, the arc-shaped formwork and the top formwork all abut against the section wall, the overall structure is stable, and the overall structure can freely adjust the size of the lining trolley steel formwork. The phenomena of long construction period, low construction efficiency and increased construction cost caused by redesign of the trolley when the trolley encounters different sections during construction are avoided, and the purpose of rapid formwork erecting of tunnel lining engineering is achieved, so that the construction efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of trolley construction, in particular to a flexible top cover trolley for a straight wall type arched tunnel. Background Art

[0002] At present, the construction of tunnel lining projects mainly uses secondary lining trolley equipment. The lining trolley is selected according to the size of the lining section, and then the trolley is assembled. Then the track is laid, the trolley is in place, and the lining construction begins. However, most lining trolleys are mainly used for fixed-section arch tunnels and are rarely used in variable-section straight-wall arch tunnels. At the same time, the traditional lining trolley has a single structure. When encountering different sections, the size of the lining trolley steel mold cannot be freely adjusted, and the trolley needs to be redesigned, resulting in a long construction period, low construction efficiency, and increased construction costs. For this reason, we propose a flexible top cover trolley for straight-wall arch tunnels to solve the above problems. Utility Model Content

[0003] The utility model provides a flexible top cover trolley for a straight wall arch tunnel, which solves the problem that most lining trolleys are mainly used for fixed section arch tunnels and are rarely used in variable section straight wall arch tunnels. At the same time, the traditional lining trolley has a single structure. When encountering different sections, the size of the lining trolley steel mold cannot be freely adjusted, and the trolley needs to be redesigned, resulting in a long construction period, low construction efficiency, and increased construction costs.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: a straight-wall arched tunnel flexible roof trolley, comprising a plurality of gantry columns, adjacent gantry columns are connected by shear frames, straight wall arch molds are provided at both ends of the plurality of gantry columns, a rotating arc mold is provided on the top of the straight wall arch mold, a top mold is provided on the top of the plurality of gantry columns, and the two ends of the top mold slide against the arc mold.

[0005] In the preferred solution, a third jack is provided at both ends of the top of the portal column, a second jack is provided at the side end of the portal column, and the second jack and the third jack are both rotatably connected to the portal column through a rotating seat.

[0006] In the preferred solution, multiple first jacks are provided on the top of the portal column, and multiple side jacks are provided on one side of the portal column. The first jacks and the side jacks are rotatably connected to the portal column through a rotating seat, and one end of the side jack is connected to the straight wall arch mold.

[0007] In the preferred solution, multiple support members are provided between the straight wall arch form and the portal column, and the support members include a lower plate and an upper plate. The upper plate rests on the lower plate, one end of the lower plate is connected to the portal column, and one end of the upper plate is installed on the straight wall arch form.

[0008] In a preferred solution, a plurality of through holes are provided on the upper plate and the lower plate, and the upper plate and the lower plate are connected by bolts.

[0009] In a preferred embodiment, the arc template includes an arc end plate, which is provided with a plurality of arc rotating plates. Adjacent arc rotating plates are rotatably connected, wherein one arc rotating plate located at the end is rotatably connected to the arc end plate, and a plurality of arc grooves are provided on the arc end plate. The second jack is connected to the arc end plate, and the third jack is connected to another arc rotating plate located at the end.

[0010] In a preferred solution, a hinged seat is provided on the straight wall arch form, and the arc-shaped end plate is rotatably connected to the straight wall arch form via the hinged seat.

[0011] In a preferred embodiment, the top mold includes an arc-shaped middle mold, and a plurality of arc-shaped end mold plates are provided on both sides of the middle mold. Adjacent end mold plates are rotatably connected, one of the end mold plates is rotatably connected to the middle mold, and a limit piece is provided at the bottom of the other end mold plate.

[0012] In a preferred solution, the first jack is connected to the middle mold, and the limiting member includes a support rod, and rotating rollers are provided at both ends of the support rod. The support rod passes through the arc groove, and the rollers roll against the arc end plates.

[0013] In a preferred solution, two tracks are provided at the bottom of the plurality of portal columns, and roller groups are provided at both ends of the bottom of the portal columns, and the roller groups are against the tracks.

[0014] The beneficial effect of the utility model is that when the trolley construction encounters a variable cross-section, the bolts on the support are loosened, and multiple first jacks are driven to move the top mold upward, so that the middle mold abuts against the cross-section wall, and multiple end molds abut against the arc mold and slide.

[0015] Drive multiple second jacks to rotate the arc-shaped end plates, drive multiple third jacks to rotate the arc-shaped rotating plates, rotate the arc-shaped templates, and make the arc-shaped templates abut against the section wall. Drive multiple side jacks while driving the second jacks, so that the straight wall arch molds on both sides abut against the side walls of the section, install bolts on the support members, so that the straight wall arch molds, the arc-shaped templates and the top molds abut against the section walls, so that the overall structure is stable, so that the overall structure can freely adjust the size of the lining trolley steel mold. Avoid the need to redesign the trolley when the trolley construction encounters different sections, resulting in a long construction period, low construction efficiency, and increased construction costs, so as to achieve the purpose of rapid formwork support for tunnel lining projects, thereby improving construction efficiency. It has great promotion value. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0017] Figure 1It is a front view of the overall structure of the utility model;

[0018] Figure 2 It is an axial side view of a plurality of door frame columns of the utility model;

[0019] Figure 3 It is a side view of multiple door frame columns of the utility model;

[0020] Figure 4 It is an axial side view of the door frame column of the utility model;

[0021] Figure 5 It is an axonometric view of a local structure of the utility model;

[0022] Figure 6 It is an exploded view of the local structure of the utility model;

[0023] Figure 7 This utility model Figure 6 A magnified view of center A;

[0024] In the figure: door frame column 1; roller group 101; straight wall arch formwork 2; hinged seat 201; arc formwork 3; arc end plate 301; arc rotating plate 302; arc groove 303; top formwork 4; middle formwork 401; end formwork 402; first jack 5; second jack 6; third jack 7; side jack 8; support member 9; lower plate member 901; upper plate member 902; limit member 10; support rod 1001; roller 1002; shear frame 11. DETAILED DESCRIPTION

[0025] Embodiment 1:

[0026] like Figure 1-7 In the embodiment, the flexible roof trolley of the straight wall type arched tunnel comprises a plurality of portal columns 1, adjacent portal columns 1 are connected by shear frames 11, both ends of the plurality of portal columns 1 are provided with straight wall arch molds 2, the top of the straight wall arch molds 2 is provided with a rotating arc mold 3, and the top of the plurality of portal columns 1 is provided with a top mold 4, and both ends of the top mold 4 slide against the arc mold 3. With this structure, when the trolley construction encounters a variable section becoming larger, the bolts on the support member 9 are loosened, and the plurality of first jacks 5 are driven to move the top mold 4 upward, so that the middle mold 401 is against the section wall, and the plurality of end molds 402 slide against the arc mold 3.

[0027] Drive multiple second jacks 6 to rotate the arc-shaped end plate 301, drive multiple third jacks 7 to rotate the arc-shaped rotating plate 302, so as to rotate the arc-shaped template 3, so that the arc-shaped template 3 abuts against the section wall. Drive multiple side jacks 8 while driving the second jacks 6, so that the straight wall arch molds 2 on both sides abut against the side walls of the section, and install bolts on the support members 9 so that the straight wall arch molds 2, the arc-shaped templates 3 and the top molds 4 all abut against the section walls, so that the overall structure is stable, so that the overall structure can freely adjust the size of the lining trolley steel mold. Avoid the need to redesign the trolley when the trolley construction encounters different sections, resulting in a long construction period, low construction efficiency, and increased construction costs. Achieve the purpose of rapid formwork support for tunnel lining projects, thereby improving construction efficiency.

[0028] In the preferred solution, the two ends of the top of the portal column 1 are provided with a third jack 7, and the side ends of the portal column 1 are provided with a second jack 6, and the second jack 6 and the third jack 7 are both rotatably connected to the portal column 1 through a rotating seat. With this structure, the end of the top mold 4 abuts against the arc-shaped template 3 due to gravity, and the rotation angle of the arc-shaped template 3 is adjusted by driving the second jack 6 and the third jack 7, so that the two ends of the top mold 4 abut against the section wall.

[0029] In the preferred solution, a plurality of first jacks 5 are provided on the top of the portal column 1, and a plurality of side jacks 8 are provided on one side of the portal column 1. The first jacks 5 and the side jacks 8 are both rotatably connected to the portal column 1 through a rotating seat, and one end of the side jack 8 is connected to the vertical wall arch mold 2. With this structure, by driving the first jacks 5, the middle mold 401 of the top mold 4 moves up and down, so that the top mold 4 abuts against the section wall.

[0030] In the preferred solution, a plurality of support members 9 are provided between the vertical wall arch form 2 and the door frame column 1, and the support members 9 include a lower plate 901 and an upper plate 902, the upper plate 902 abuts against the lower plate 901, one end of the lower plate 901 is connected to the door frame column 1, and one end of the upper plate 902 is installed on the vertical wall arch form 2. With this structure, by providing a plurality of support members 9 between the vertical wall arch form 2 and the door frame column 1, when the vertical wall arch form 2 abuts against the section wall, the support members 9 can provide a good supporting force to maintain the stability of the overall structure.

[0031] In a preferred solution, a plurality of through holes are provided on the upper plate 902 and the lower plate 901 , and the upper plate 902 and the lower plate 901 are connected by bolts.

[0032] In the preferred solution, the arc-shaped template 3 includes an arc-shaped end plate 301, and the arc-shaped end plate 301 is provided with a plurality of arc-shaped rotating plates 302. Adjacent arc-shaped rotating plates 302 are rotatably connected, and one of the arc-shaped rotating plates 302 located at the end is rotatably connected to the arc-shaped end plate 301. The arc-shaped end plate 301 is provided with a plurality of arc-shaped grooves 303. The second jack 6 is connected to the arc-shaped end plate 301, and the third jack 7 is connected to another arc-shaped rotating plate 302 located at the end. With this structure, the arc-shaped template 3 includes the arc-shaped end plate 301 and the plurality of arc-shaped rotating plates 302, so that the arc-shaped template 3 is in a flexible state, and the top mold 4 is also in a flexible state, so that when the cross section changes, the arc-shaped template 3 and the top mold 4 in the flexible state can change the arc rotation angle at the end, so that the ends of the arc-shaped template 3 and the top mold 4 can fit the cross-section wall.

[0033] In the preferred embodiment, a hinge seat 201 is provided on the straight wall arch form 2, and the arc end plate 301 is rotatably connected to the straight wall arch form 2 through the hinge seat 201. With this structure, the arc end plate 301 is rotatably connected to the straight wall arch form 2 through the hinge seat 201, so that the arc template 3 is rotatably connected to the straight wall arch form 2.

[0034] In a preferred solution, the top mold 4 includes an arc-shaped middle mold 401, and a plurality of arc-shaped end mold plates 402 are arranged on both sides of the middle mold 401. Adjacent end mold plates 402 are rotatably connected, and one end mold plate 402 located at the end is rotatably connected to the middle mold 401, and a stopper 10 is arranged at the bottom of the other end mold plate 402 located at the end. With this structure, when the template 3 rotates relative to the straight wall arch mold 2, the top mold 4 abuts against the arc-shaped template 3, the stopper 10 limits the template 3, and the roller 1002 of the stopper 10 rolls against the bottom surface of the template 3 to ensure that the end of the top mold 4 fits the template 3.

[0035] In a preferred embodiment, the first jack 5 is connected to the middle mold 401 , and the limiting member 10 includes a support rod 1001 , and rotating rollers 1002 are provided at both ends of the support rod 1001 . The support rod 1001 passes through the arc groove 303 , and the rollers 1002 roll against the arc end plate 301 .

[0036] In a preferred solution, two tracks are provided at the bottom of the plurality of portal columns 1, and roller groups 101 are provided at both ends of the bottom of the portal columns 1, and the roller groups 101 abut against the tracks. With this structure, the portal columns 1 at the ends are pushed so that the entire structure moves along the tracks.

[0037] The above embodiments are only preferred technical solutions of the present invention and should not be regarded as limitations of the present invention. The protection scope of the present invention shall be the technical solutions recorded in the claims, including equivalent replacement solutions of the technical features in the technical solutions recorded in the claims. That is, equivalent replacement improvements within this scope are also within the protection scope of the present invention.

Claims

1. The straight wall arched tunnel flexible roof trolley is characterized by: The invention comprises a plurality of portal columns (1), wherein adjacent portal columns (1) are connected via shear frames (11), straight wall arch moulds (2) are provided at both ends of the plurality of portal columns (1), a rotating arc mould (3) is provided at the top of the straight wall arch mould (2), and a top mould (4) is provided at the top of the plurality of portal columns (1), and both ends of the top mould (4) slide against the arc mould (3).

2. According to claim 1, the straight wall type arched tunnel flexible roof trolley is characterized by: A third jack (7) is provided at both ends of the top of the portal column (1), and a second jack (6) is provided at the side end of the portal column (1). The second jack (6) and the third jack (7) are both rotatably connected to the portal column (1) via a rotating seat.

3. The straight-wall arched tunnel flexible roof trolley according to claim 1 is characterized in that: A plurality of first jacks (5) are provided on the top of the portal column (1), and a plurality of side jacks (8) are provided on one side of the portal column (1). The first jacks (5) and the side jacks (8) are both rotatably connected to the portal column (1) via a rotating seat, and one end of the side jack (8) is connected to the straight wall arch form (2).

4. The straight-wall arched tunnel flexible roof trolley according to claim 1 is characterized in that: A plurality of support members (9) are provided between the vertical wall arch formwork (2) and the door frame column (1), the support member (9) comprising a lower plate member (901) and an upper plate member (902), the upper plate member (902) abutting against the lower plate member (901), one end of the lower plate member (901) being connected to the door frame column (1), and one end of the upper plate member (902) being mounted on the vertical wall arch formwork (2).

5. The straight-wall arched tunnel flexible roof trolley according to claim 4 is characterized in that: A plurality of through holes are provided on the upper plate (902) and the lower plate (901), and the upper plate (902) and the lower plate (901) are connected by bolts.

6. The straight-wall arched tunnel flexible roof trolley according to claim 1 is characterized by: The arc-shaped template (3) comprises an arc-shaped end plate (301), the arc-shaped end plate (301) is provided with a plurality of arc-shaped rotating plates (302), adjacent arc-shaped rotating plates (302) are rotatably connected, one of the arc-shaped rotating plates (302) located at the end is rotatably connected to the arc-shaped end plate (301), the arc-shaped end plate (301) is provided with a plurality of arc-shaped grooves (303), the second jack (6) is connected to the arc-shaped end plate (301), and the third jack (7) is connected to another arc-shaped rotating plate (302) located at the end.

7. The straight-wall arched tunnel flexible roof trolley according to claim 6 is characterized by: A hinge seat (201) is provided on the straight wall arch form (2), and the arc-shaped end plate (301) is rotatably connected to the straight wall arch form (2) via the hinge seat (201).

8. The straight-wall arched tunnel flexible roof trolley according to claim 1 is characterized in that: The top mold (4) comprises an arc-shaped middle mold (401), a plurality of arc-shaped end mold plates (402) are provided on both sides of the middle mold (401), adjacent end mold plates (402) are rotatably connected, one end mold plate (402) located at the end is rotatably connected to the middle mold (401), and another end mold plate (402) located at the end is provided with a limiter (10) at the bottom.

9. The straight-wall arched tunnel flexible roof trolley according to claim 8 is characterized in that: The first jack (5) is connected to the middle mold (401), and the limiting member (10) comprises a support rod (1001). Rotating rollers (1002) are provided at both ends of the support rod (1001). The support rod (1001) passes through the arc groove (303), and the rollers (1002) roll against the arc end plate (301).

10. The straight wall type arched tunnel flexible roof trolley according to claim 1 is characterized by: Two tracks are provided at the bottom of the plurality of door frame columns (1), and roller groups (101) are provided at both ends of the bottom of the door frame columns (1), and the roller groups (101) are against the tracks.

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