Tunnel lining trolley

Abstract

The utility model relates to the technical field of tunnel lining construction, and provides a tunnel lining trolley which comprises portals, a plurality of left portals and a plurality of right portals, the adjacent left portals and right portals are connected into a whole through a left adjusting assembly and a right adjusting assembly, the distance between the left portals and the right portals can be adjusted, and a truss is arranged above the portals. The truss is used for connecting the front and rear left portals and the front and rear right portals, a formwork upper supporting assembly is arranged above the truss, formwork side supporting assemblies are arranged on the sides, away from each other, of the left portals and the right portals, arc-shaped formworks are arranged on the formwork upper supporting assembly and the formwork side supporting assemblies, and a walking assembly and a bottom supporting assembly are arranged at the bottoms of the portals. According to the tunnel lining support, the size of the lining support can be changed according to the section size of a tunnel bifurcated section so as to adapt to lining supports of tunnels with different section sizes and tunnels with bifurcated sections, and the efficiency and economical efficiency of tunnel lining construction are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel lining construction, and particularly relates to a tunnel lining trolley. Background Technique

[0002] With the development of cities, urban tunnels are gradually increasing. At the same time, in order to meet the requirements of urban road interchange, bifurcated tunnels are more and more widely used in engineering practice, effectively ensuring the smooth flow of urban lines. However, due to the large cross-sectional size and complex cross-sectional form of bifurcated tunnels, multiple sections of continuously variable cross-section construction sections are formed, and traditional integral lining trolleys are no longer suitable for complex and variable cross-sectional forms.

[0003] Therefore, in view of the above problems, a tunnel lining trolley is proposed to solve the above problems. Content of the Utility Model

[0004] In view of the deficiencies of the prior art, the utility model develops a tunnel lining trolley, which can change the size of the lining support according to the cross-sectional size of the tunnel bifurcation section, so as to adapt to the lining supports of tunnels with different cross-sectional sizes and tunnels in the bifurcation section, and improve the efficiency and economy of tunnel lining construction.

[0005] In order to achieve the above object, the utility model is realized through the following technical solutions:

[0006] A tunnel lining trolley includes: a gantry, which includes a plurality of left gantries and a plurality of right gantries. The adjacent left gantry and right gantry are connected into one body through a left-right adjustment component for adjusting the distance between the left gantry and the right gantry. A truss is arranged above the gantry for connecting the front and rear left gantries and the front and rear right gantries. A template upper support component is arranged above the truss. Template side support components are arranged on the sides where the left gantry and the right gantry are far away from each other. An arc template is arranged on the template upper support component and the template side support components. A walking component and a bottom support component are arranged at the bottom of the gantry.

[0007] Preferably, the left gantry and the right gantry have the same structure, both are in the shape of a door, and are symmetrically arranged about the center line of the gantry; both ends of the left gantry and the right gantry are set as sleeves, which are slidably sleeved on the inner tubes, and the inner tubes and the sleeves are connected through lifting power components for changing the height of the left gantry and the right gantry.

[0008] Preferably, the left-right adjustment component includes a telescopic member, and both ends of the telescopic member are respectively arranged on the left gantry and the right gantry. The telescopic member changes the distance between the left gantry and the right gantry by telescoping.

[0009] Preferably, it further includes a plurality of connecting members with different lengths. Both ends of the connecting members are connected to the left gantry and the right gantry for laterally supporting the left gantry and the right gantry.

[0010] Preferably, the support components on the formwork include an upper support beam and a plurality of upper support rods. The upper support beam is arranged on the truss, and the upper support rods are evenly arranged on the upper support beam and symmetrically arranged on the left and right with respect to the center line of the gantry. The upper ends of the upper support rods are connected to the arc-shaped formwork.

[0011] Preferably, the side support components of the formwork include a plurality of connecting rods. One end of each connecting rod is arranged on the left gantry or the right gantry, and the other end of the connecting rod is connected to the arc-shaped formwork.

[0012] Preferably, the traveling components include wheel frames rotatably arranged at the bottom ends of both ends of the left gantry and the right gantry. Traveling wheels are arranged on the wheel frames at the ends where the left gantry and the right gantry are close to each other, and track wheels are arranged on the wheel frames at the ends where the left gantry and the right gantry are far from each other. The track wheels roll on the track, and the track is arranged in the tunnel along the length direction of the tunnel.

[0013] Preferably, the bottom support components include bottom support seats arranged on the side walls at both ends of the left gantry and the right gantry. Reinforcing ribs are arranged between the bottom support seats and the left gantry and the right gantry, and bottom telescopic support members are arranged on the bottom support seats for supporting the left gantry and the right gantry.

[0014] Preferably, adjacent left gantries and adjacent right gantries are connected by diagonal braces.

[0015] The effects provided in the utility model content are only the effects of the embodiments, rather than all the effects of the utility model. The above technical solutions have the following advantages:

[0016] By providing symmetric left and right gantries in the present utility model, and arranging a left-right adjustment component between the left and right gantries to freely adjust the lining support size of the trolley according to the cross-sectional size of the tunnel, so as to adapt to the lining support of tunnels with different cross-sectional sizes and tunnels in the bifurcation section, the construction efficiency is improved; by arranging traveling components, it is convenient for the trolley to change positions along the length direction of the tunnel during construction. The traveling components on both sides of the gantry use track wheels to cooperate with the track to travel, and the traveling components in the middle of the gantry use traveling wheels to travel, so as to ensure that the center line of the device coincides with the center line of the tunnel when moving. At the same time, both the track wheels and the traveling wheels can rotate 90°, so as to cooperate with the left-right adjustment component to adjust the lining support size, improving the practicability of the device; by arranging bottom support components, it is convenient for the rotation of the track wheels and the traveling wheels after support, and the overall position of the trolley is fixed during lining support to avoid the movement of the trolley, improving the stability and safety of the device during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings are used to provide a further understanding of the present utility model, and constitute a part of the specification. They are used together with the embodiments of the present utility model to explain the present utility model, and do not constitute a limitation to the present utility model.

[0018] Figure 1The front view schematic diagram of the overall structure of the embodiment of the present utility model;

[0019] Figure 2 The side view partial structure schematic diagram of the embodiment of the present utility model;

[0020] Figure 3 The side view schematic diagram of removing the arc template of the embodiment of the present utility model;

[0021] Figure 4 The movement schematic diagram of the left gantry and the right gantry of the embodiment of the present utility model;

[0022] Figure 5 The position schematic diagram of part of the traveling assembly and the bottom support assembly of the embodiment of the present utility model.

[0023] In the figure, 1, left gantry; 2, right gantry; 3, truss; 4, arc template; 5, lifting power member; 6, telescopic member; 7, connecting member; 8, upper support beam; 9, upper support rod; 10, connecting rod; 11, wheel frame; 12, traveling wheel; 13, track wheel; 14, track; 15, bottom support seat; 16, reinforcing rib; 17, bottom telescopic support member; 18, inclined support. Specific embodiments

[0024] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0025] As Figures 1 - 5 shown, the present utility model provides a technical solution:

[0026] A tunnel lining trolley, comprising: a gantry, including a plurality of left gantries 1 and a plurality of right gantries 2. The left gantries 1 and the right gantries 2 are both arranged uniformly along the length direction of the tunnel. The left gantries 1 and the right gantries 2 are respectively located on both sides inside the tunnel. Adjacent left gantries 1 and right gantries 2 are connected into one body through a left-right adjustment assembly. The left-right adjustment assembly can adjust the distance between the left gantry 1 and the right gantry 2. A plurality of mutually parallel trusses 3 are uniformly arranged above the gantry. The length direction of the trusses 3 is parallel to the length direction of the tunnel, and is used to connect adjacent front and rear left gantries 1 and adjacent front and rear right gantries 2 to enhance the stability of the device. A formwork upper support assembly is arranged above the trusses 3. Formwork side support assemblies are arranged on the sides of the left gantry 1 and the right gantry 2 away from each other. An arc-shaped formwork 4 is arranged on the formwork upper support assembly and the formwork side support assemblies. The arc-shaped formwork 4 can be connected into one body for formwork support. The connection of the arc-shaped formwork 4 can adopt conventional connection. A traveling assembly and a bottom support assembly are arranged at the bottom of the gantry, which are used to drive the device to move and improve the support stability during lining construction.

[0027] In this embodiment, the structural sizes of the left gantry 1 and the right gantry 2 are set to be the same, both are in the shape of a portal, and are symmetrically structured left and right with respect to the center line of the gantry. Preferably, when the device is in use, the center line of the gantry coincides with the center line of the tunnel to ensure the balance of the support of the lining inside the tunnel. In this embodiment, both ends of the left gantry 1 and the right gantry 2 are set as sleeves, and the sleeves are slidably sleeved on the inner tubes. The bottom of the inner tubes is connected to the traveling assembly and the bottom support assembly, and the inner tubes and the sleeves are connected by a lifting power member 5. The lifting power member 5 can be selected as a lifting oil cylinder, which is used to change the height of the left gantry 1 and the right gantry 2, improving the practicability of the device.

[0028] In this embodiment, the left-right adjustment assembly includes a telescopic member 6. The telescopic member 6 can be selected as a telescopic oil cylinder. The two ends of the telescopic member 6 are respectively arranged on the left gantry 1 and the right gantry 2. The telescopic member 6 changes its length through telescoping to change the distance between the left gantry 1 and the right gantry 2. Preferably, a plurality of telescopic members 6 can be arranged, and their axes are horizontally or inclined to the ground and arranged between adjacent left gantries 1 and right gantries 2, enhancing the mutual stability while adjusting the distance.

[0029] In this embodiment, it further includes several connecting members 7 with different lengths. Both ends of the connecting member 7 are connected to the upper ends of the left gantry 1 and the right gantry 2, and are used for laterally supporting the left gantry 1 and the right gantry 2, enhancing the integrity of the left gantry 1 and the right gantry 2 during lining support, and improving the stability of the device. The connecting member 7 only provides support after the device is fixed in position, and does not need to provide support during the movement and adjustment of the device. The connecting member 7 is selected as a channel steel, which can be freely cut according to the required length dimension at the construction site, and then set on the left gantry 1 and the right gantry 2 through fastening bolts; in another embodiment, the length of the connecting member 7 at each lining position can also be calculated according to the different cross-sectional dimensions of the tunnel to be lined, and the connecting members 7 with different lengths corresponding to different construction positions can be prefabricated, which can improve the construction efficiency.

[0030] In this embodiment, the upper support assembly of the formwork includes an upper support beam 8 and several upper support rods 9. The upper support beam 8 is arranged on the truss 3. The upper support rods 9 are evenly arranged on the upper support beam 8 and are symmetrically arranged left and right with respect to the midline of the gantry. The upper ends of the upper support rods 9 are connected to the arc formwork 4. Preferably, the upper support rods 9 are all set as retractable push-pull cylinders. The axis of the upper support rod 9 is perpendicular to the upper support beam 8. Further preferably, the upper ends of the upper support rods 9 are rotatably connected to the arc formwork 4 to facilitate adjusting the formwork angle of the arc formwork 4 and improve the practicability of the device.

[0031] In another embodiment, a middle support beam is arranged between the upper support beams 8 on the left gantry 1 and the right gantry 2. The middle support beam can be set according to the construction needs. For example, when the distance between the left gantry 1 and the right gantry 2 is too large, both ends of the middle support beam are connected to the upper support beams 8 on both sides through connecting bolts for supporting the upper support beams 8 on both sides. At the same time, upper support rods 9 are arranged on the middle support beam. The number of the upper support rods 9 is freely set according to the construction needs. The upper support rods 9 are connected to the arc formwork 4 on its upper side and are used for supporting the arc formwork 4 at the middle top when the span of the left gantry 1 and the right gantry 2 is too large, improving the stability and safety of the device.

[0032] In this embodiment, the side support assembly of the formwork includes several connecting rods 10. One end of the connecting rod 10 is arranged on the left gantry 1 or the right gantry 2, and the other end of the connecting rod 10 is connected to the arc formwork 4 for supporting the arc formwork 4 on the side. The arc formworks 4 can be connected to each other as a whole, facilitating integral lining. Preferably, the structure of the connecting rod 10 is similar to a turnbuckle, and the overall length of the connecting rod 10 can be changed by rotation to better adapt to the lining support of tunnels with different cross-sectional dimensions, improving the practicability of the device.

[0033] In this embodiment, the traveling assembly includes a wheel frame 11 rotatably arranged at the bottom ends of the left gantry 1 and the right gantry 2, that is, at the bottom of the inner tube. Traveling wheels 12 are arranged on the wheel frame 11 at the ends of the left gantry 1 and the right gantry 2 that are close to each other, and track wheels 13 are arranged on the wheel frame 11 at the ends of the left gantry 1 and the right gantry 2 that are far from each other. The traveling wheels 12 can be connected to a moving power member, and the moving power member is arranged on the wheel frame 11. The moving power member is preferably an electric motor to drive the overall movement of the device. The track wheels 13 are arranged to roll on a track 14, and the track 14 is arranged in the tunnel along the length direction of the tunnel; the wheel frame 11 can drive the traveling wheels 12 or the track wheels 13 to rotate. Specifically, a rotating shaft is arranged on the wheel frame 11, and the rotating shaft is rotatably arranged on the inner tube. A large gear is coaxially sleeved on the rotating shaft, and the large gear can drive the rotating shaft to rotate. The large gear is meshed with a small gear, and the small gear is coaxially arranged at the output end of the electric motor. The electric motor is arranged on the inner tube, and the electric motor drives the small gear to rotate, thereby driving the large gear to rotate through transmission, and further causing the overall rotation of the wheel frame 11 to change the traveling directions of the traveling wheels 12 and the track wheels 13, facilitating lateral adjustment and improving the efficiency of the device.

[0034] In this embodiment, the bottom support assembly includes a bottom support base 15 arranged on the side walls at the two ends of the left gantry 1 and the right gantry 2, that is, on the outer side wall of the inner tube. Reinforcing ribs 16 are arranged between the bottom support base 15 and the left gantry 1 and the right gantry 2 to enhance the stability of the support of the bottom support base 15. A bottom telescopic support member 17 is arranged on the bottom support base 15. The bottom telescopic support member 17 is preferably a hydraulic jack, which is used to support the left gantry 1 and the right gantry 2, and at the same time, by supporting, the traveling wheels 12 are lifted off the ground and the track wheels 13 are disengaged from the track 14, facilitating the rotation of the wheel frame 11; preferably, at least two bottom telescopic support members 17 are arranged on each bottom support base 15, and the arrangement positions do not affect the rotation of the wheel frame 11. Further preferably, the connecting line of the arrangement positions of the two bottom telescopic support members 17 on the bottom support base 15 at one end of the track wheel 13 is arranged at an angle of 45° with the length direction of the track 14 and is located on both sides of the track 14, so as not to affect the arrangement of the lateral track 14 after the track wheel 13 rotates 90°, improving the practicability of the device.

[0035] In this embodiment, adjacent left gantries 1 and adjacent right gantries 2 are connected by inclined supports 18. Preferably, the sleeves are connected by inclined supports 18 to enhance the stability. The inner tubes are connected by horizontal supports, and the horizontal supports are located at the lower ends of the inner tubes to avoid affecting the lifting of the lifting power member 5, improving the overall stability of the device.

[0036] Working principle: First, tracks 14 along the tunnel length direction are symmetrically arranged on both sides inside the tunnel. The tracks 14 are connected by multiple short rails. Then, the left gantry 1 and the right gantry 2 are assembled and connected. Walking components and bottom support components are arranged at the bottoms of the left gantry 1 and the right gantry 2. The track wheels 13 of the walking components are in rolling connection with the tracks 14 on both sides. Then, the left-right adjustment components are set to adjust the length. Next, the formwork upper support components and the formwork side support components are set. The lifting power component 5 is adjusted so that the height of the gantry meets the lining requirements. That is, after the edge of the device reaches the secondary lining contour line, the connecting piece 7 is set to connect and support. Then, the arc formwork 4 is installed, and the bottom telescopic support piece 17 is extended to support the whole device. When the distance between the left gantry 1 and the right gantry 2 needs to be adjusted, the walking wheels 12 can be lifted off the ground and the track wheels 13 can be lifted off the tracks 14 first through the bottom telescopic support piece 17. Then, the wheel frame 11 is rotated to drive the walking wheels 12 and the track wheels 13 to rotate 90°. A transverse track 14 perpendicular to the original track 14 length direction is set below the track wheels 13 at this time. The original track 14 at this position can be removed, or the original track 14 can be segmented and set horizontally at 90° below each track wheel 13, as long as the original track 14 does not affect the lateral movement of the track wheels 13. Then, the bottom telescopic support piece 17 is retracted so that the walking wheels 12 contact the ground and the track wheels 13 contact the transverse track 14. Then, the telescopic piece 6 is adjusted so that the distance between the left gantry 1 and the right gantry 2 changes to adapt to tunnels with different cross-sectional sizes. After the positions of the left gantry 1 and the right gantry 2 are adjusted, the bottom telescopic support piece 17 is extended again to lift the walking wheels 12 off the ground and the track wheels 13 off the tracks 14. Then, the wheel frame 11 is reversed to rotate the walking wheels 12 and the track wheels 13 to the original angle. Then, the transverse track 14 is restored to the longitudinal position. Then, the bottom telescopic support piece 17 is retracted again so that the walking wheels 12 contact the ground and the track wheels 13 contact the tracks 14, completing the adjustment of the device. Or in the tunnel bifurcation section, when the cross-sectional size of the tunnel gradually increases, the distance between the tracks 14 on both sides also gradually increases. At this time, only the length of the left-right adjustment components needs to be adjusted during the movement of the device, and at the same time, the left and right walking wheels 12 are rotated to an angle parallel to the length direction of the tracks 14 on their corresponding sides, so as to achieve the effect of adjustment during the movement of the device, improving the construction efficiency.

[0037] The details not elaborated in the present utility model are all well-known conventional technical means in the art.

[0038] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model 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. Therefore, it should not be construed as a limitation to the present utility model.

[0039] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present utility model, "a plurality of" means two or more, unless otherwise specifically defined.

[0040] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

[0041] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent substitutions for some of the technical features. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A tunnel lining trolley, characterized in that, Comprising: A gantry, including a number of left gantries (1) and a number of right gantries (2). The adjacent left gantry (1) and right gantry (2) are connected into one body through a left-right adjustment component for adjusting the distance between the left gantry (1) and the right gantry (2). A truss (3) is arranged above the gantry for connecting the left gantry (1) and the right gantry (2). A formwork upper support component is arranged above the truss (3). Formwork side support components are arranged on the sides of the left gantry (1) and the right gantry (2) away from each other. Arc-shaped formworks (4) are arranged on both the formwork upper support component and the formwork side support component. A walking component and a bottom support component are arranged at the bottom of the gantry.

2. The tunnel lining trolley according to claim 1, characterized in that: The structures of the left gantry (1) and the right gantry (2) are the same, both in the shape of a portal, and are symmetrically structured left and right with respect to the center line of the gantry.

3. A tunnel lining trolley according to claim 2, characterized in that: The left-right adjustment component includes a telescopic member (6). The two ends of the telescopic member (6) are respectively arranged on the left gantry (1) and the right gantry (2). The telescopic member (6) changes the distance between the left gantry (1) and the right gantry (2) by telescoping.

4. A tunnel lining trolley according to claim 3, characterized in that: It also includes a number of connecting members (7) with different lengths. The two ends of the connecting member (7) are connected to the left gantry (1) and the right gantry (2) for laterally supporting the left gantry (1) and the right gantry (2).

5. The tunnel lining trolley according to claim 4, characterized in that: The formwork upper support component includes an upper support beam (8) and a number of upper support rods (9). The upper support beam (8) is arranged on the truss (3). The upper support rods (9) are evenly arranged on the upper support beam (8) and are symmetrically arranged left and right with respect to the center line of the gantry. The upper ends of the upper support rods (9) are connected to the arc-shaped formwork (4).

6. The tunnel lining trolley according to claim 5, characterized in that: The formwork side support component includes a number of connecting rods (10). One end of the connecting rod (10) is arranged on the left gantry (1) or the right gantry (2), and the other end of the connecting rod (10) is connected to the arc-shaped formwork (4).

7. A tunnel lining trolley according to claim 6, characterized in that: The walking component includes wheel frames (11) rotatably arranged at the bottom ends of the left gantry (1) and the right gantry (2). Walking wheels (12) are arranged on the wheel frames (11) at the ends of the left gantry (1) and the right gantry (2) close to each other. Track wheels (13) are arranged on the wheel frames (11) at the ends of the left gantry (1) and the right gantry (2) away from each other. The track wheels (13) roll on a track (14). The track (14) is arranged in the tunnel along the length direction of the tunnel.

8. A tunnel lining trolley according to claim 7, characterized in that: The bottom support component includes bottom support seats (15) arranged on the side walls at both ends of the left gantry (1) and the right gantry (2). Reinforcing ribs (16) are arranged between the bottom support seats (15) and the left gantry (1) and the right gantry (2). Bottom telescopic support members (17) are arranged on the bottom support seats (15) for supporting the left gantry (1) and the right gantry (2).

9. The tunnel lining jumbo according to claim 8, wherein: The adjacent left gantries (1) and the adjacent right gantries (2) are connected by diagonal braces (18).

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