Tunnel widening section lining trolley

Abstract

The utility model discloses a lining trolley for a widened section of a tunnel. The lining trolley comprises a plurality of groups of portal stand columns and portal cross beams, a U-shaped upper side door frame is installed on the outer side of each door frame stand column. A lower side door frame is detachably mounted at the lower end of the upper side door frame through bolts; a supporting inclined plate is detachably installed between the lower portion of the lower side door frame and the lower end of the upper side door frame through bolts. The lead screw jack has the advantages that the upper side door frame and the lower side door frame are arranged, the length of the lead screw jack can be reduced, the weight of the lead screw jack is reduced, and therefore the labor intensity of constructors is reduced.

Description

Technical Field

[0001] This utility model relates to the field of tunnel formwork trolley technology, and in particular to a tunnel widening section lining trolley. Background Technology

[0002] In my country, highway tunnels are generally equipped with emergency parking lanes, designated for temporary parking and fire lanes, which are essentially widened sections. Widened sections require the use of larger lining trolleys for construction. Existing lining trolleys for widening sections lack side masts, resulting in excessively long threaded rod jacks used for connecting to the side formwork. These threaded rods suffer from insufficient strength and excessive weight, leading to high labor intensity for construction workers. While some widening section trolleys do have side masts, these need to be completely removed when the trolley is about to pass through the standard cross-section, requiring significant labor intensity during dismantling. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a lining trolley with a widened section and two side masts, which can reduce the length and weight of the screw jack, thereby reducing the labor intensity of construction workers.

[0004] To solve the above-mentioned technical problems, the technical solution of this utility model is a tunnel widening section lining trolley, including several sets of gantry columns and gantry beams; each gantry column is equipped with a U-shaped upper gantry on its outer side; the lower end of the upper gantry is detachably installed with a lower gantry by bolts; the lower part of the lower gantry and the lower end of the upper gantry are detachably installed with a supporting inclined plate by bolts.

[0005] Furthermore, triangular reinforcing plates are detachably installed at the two inner corners of the upper gantry and between the top of the lower gantry and the bottom of the upper gantry using bolts.

[0006] Furthermore, a first scissor bracket is fixedly installed between two adjacent gantry columns on the same side.

[0007] Furthermore, longitudinal beams can be detachably connected between the top and outer sides of several upper masts on the same side; longitudinal beams can be detachably installed between the outer sides of several lower masts on the same side.

[0008] Furthermore, it also includes a traveling mechanism; the bottom end of the gantry column is detachably connected to the top end of the first lower longitudinal beam by bolts; a second lower longitudinal beam is provided below the first lower longitudinal beam; several heightening supports are detachably installed between the first and second lower longitudinal beams by bolts; several foundation jacks are detachably installed at the bottom end of the second lower longitudinal beam; the foundation jacks are supported on the guide rails below them; a mounting seat is connected to the side wall of the gantry column; one end of the hydraulic cylinder is connected to the mounting seat, and its piston rod is connected to the top end of the guide column; the lower end of the guide column passes through the first and second lower longitudinal beams and is connected to the top end of the traveling mechanism.

[0009] Furthermore, a reinforcing screw is installed between the bottom of the lower gantry and the second lower longitudinal beam; several screw jacks are installed between the upper and lower gantry and the side template; and a side template hydraulic cylinder is also installed between the upper gantry and the side template.

[0010] Furthermore, the number of the heightening supports is equal to the number of the gantry columns; the heightening supports are located directly below the gantry columns.

[0011] Furthermore, each set of gantry columns consists of two columns, one on the left and one on the right, and four hydraulic cylinders are installed on the two sets of gantry columns at the front and rear ends, respectively.

[0012] Furthermore, several groups of gantry columns on the same side are connected by longitudinal beams; several gantry crossbeams are connected by several longitudinal beams.

[0013] Furthermore, a second scissor bracket can be detachably installed between two adjacent upper gantry frames on the same side.

[0014] The beneficial effects of this utility model are:

[0015] This utility model features an upper and lower gantry frame, which reduces the length and weight of the lead screw jack, thereby lowering the labor intensity of construction workers. Attached Figure Description

[0016] Figure 1 This is a front view of the overall structure of the embodiment;

[0017] Figure 2 This is a side view of a partial structure of an embodiment.

[0018] In the diagram, 1-gantry column, 2-first lower longitudinal beam, 3-mounting seat, 4-hydraulic cylinder, 5-guide column, 6-second lower longitudinal beam, 7-foundation jack, 8-heightening support, 9-traveling mechanism, 10-guide rail, 11-upper gantry, 12-lower gantry, 13-triangular reinforcing plate, 14-supporting inclined plate, 15-longitudinal beam, 16-side mold cylinder, 17-reinforcing screw, 18-gantry crossbeam, 19-first scissor frame. Detailed Implementation

[0019] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. It should be noted that these descriptions are for the purpose of aiding understanding of this utility model, but do not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0020] A tunnel widening section lining trolley, such as Figure 1-2 As shown, it includes several sets of gantry columns 1 and gantry beams 18; each gantry column 1 has a U-shaped upper gantry 11 installed on its outer side; the lower end of the upper gantry 11 is detachably installed with a lower gantry 12 by bolts; the lower part of the lower gantry 12 and the lower end of the upper gantry 11 are detachably installed with a support inclined plate 14 by bolts.

[0021] The aforementioned tunnel widening section lining trolley is equipped with an upper gantry 11 and a lower gantry 12, which can reduce the length of the screw jacks installed between it and the side formwork, reduce the weight of the screw jacks, and thus reduce the labor intensity of construction workers; secondly, when the trolley is about to pass through the standard section, the lower gantry 12 can be removed, and after the trolley is deformed, the upper formwork can be mounted on the upper gantry 11, and the upper formwork is not easy to shake during the movement.

[0022] Specifically, in order to improve the connection strength, triangular reinforcing plates 13 are detachably installed at the two inner corners of the upper gantry 11 and between the top of the lower gantry 12 and the bottom of the upper gantry 11 by bolts.

[0023] Specifically, in order to improve the stability and load-bearing capacity of the trolley, a first scissor frame 19 is also fixedly installed between two adjacent gantry columns 1 on the same side.

[0024] Specifically, longitudinal beams 15 are detachably connected between the top and outer sides of several upper masts 11 on the same side; longitudinal beams 15 are detachably installed between the outer sides of several lower masts 12 on the same side.

[0025] Specifically, it also includes a traveling mechanism 9; the bottom end of the gantry column 1 is detachably connected to the top end of the first lower longitudinal beam 2 by bolts; a second lower longitudinal beam 6 is provided below the first lower longitudinal beam 2; several heightening supports 8 are detachably installed between the first lower longitudinal beam 2 and the second lower longitudinal beam 6 by bolts; several foundation jacks 7 are detachably installed at the bottom end of the second lower longitudinal beam 6; the foundation jacks 7 are supported on the guide rail 10 below them; a mounting seat 3 is connected to the side wall of the gantry column 1; one end of the hydraulic cylinder 4 is connected to the mounting seat 3, and its piston rod is connected to the top end of the guide column 5; the lower end of the guide column 5 passes through the first lower longitudinal beam 2 and the second lower longitudinal beam 6, and is connected to the top end of the traveling mechanism 9.

[0026] Specifically, a reinforcing screw rod 17 is installed between the bottom of the lower gantry 12 and the second lower longitudinal beam 6; several screw rod jacks are installed between the upper gantry 11 and the lower gantry 12 and the side template; a side template hydraulic cylinder 16 is also installed between the upper gantry 11 and the side template. The reinforcing screw rod 17 can specifically improve the deformation resistance of the lower gantry 12.

[0027] Specifically, the number of heightened supports 8 is equal to the number of gantry columns 1; the heightened supports 8 are located directly below the gantry columns 1.

[0028] Specifically, each set of gantry columns 1 consists of two columns on the left and two on the right, and four hydraulic cylinders 4 are installed on the two sets of gantry columns 1 at the front and rear ends respectively.

[0029] Specifically, several groups of gantry columns 1 on the same side are connected by longitudinal beams 15; several gantry crossbeams 18 are connected by several longitudinal beams 15.

[0030] Specifically, a second scissor frame can be detachably installed between two adjacent upper gantry frames 11 on the same side. Figure 2 The second scissor bracket is not shown in the drawing.

[0031] The working principle of this utility model:

[0032] This application features an upper gantry 11 and a lower gantry 12, which reduces the length and weight of the lead screw jack, thereby lowering the labor intensity of construction workers. Two lower longitudinal beams are provided, and a heightening support 8 is detachably installed between the first lower longitudinal beam 2 and the second lower longitudinal beam 6. This increases the overall stability of the trolley during operational transitions; furthermore, when the trolley needs to be moved, the heightening support 8 is removed, and the hydraulic cylinder 4 is controlled to retract, causing the first lower longitudinal beam 2 to move downwards and deform, thus lowering the height of the trolley and allowing it to pass through standard tunnel sections.

[0033] The specific deformation process is as follows:

[0034] S1. Remove the lower side formwork and remove the lower side gantry 12;

[0035] S2. Remove the nuts installed on the heightening support 8 to release the lock between the heightening support 8 and the first lower longitudinal beam 2 and the second lower longitudinal beam 6. Then, slightly shorten the length of the foundation jack 7 so that the upper end of the heightening support 8 does not contact the lower end of the first lower longitudinal beam 2. Remove the heightening support 8.

[0036] S3. Continue to pull the base jack 7 upwards, gradually reducing its length, and the second lower longitudinal beam 6 gradually descends until it contacts the top of the traveling mechanism 9;

[0037] S4. Continue to pull the base jack 7 upwards, gradually reducing its length, so that the base jack 7 is disengaged from the guide rail 10.

[0038] S5. Control the hydraulic cylinder 4 to retract, causing the gantry column 1 to gradually descend, driving the first lower longitudinal beam 2 to move downwards until the first lower longitudinal beam 2 contacts the second lower longitudinal beam 6. By reasonably designing and increasing the height of the support 8, the height of the gantry column 1 is eventually lowered to a height that allows passage through the standard section.

[0039] During operation, you can also follow the steps S1, S2, S5, S3, and S4.

[0040] Compared to traditional widening section trolleys, the trolley deformation operation in this application is relatively simple, which can effectively reduce labor intensity. The entire process of dismantling components, traversing standard section tunnels, and restoring dismantled components only takes three to five days, effectively improving work efficiency.

[0041] The embodiments of this utility model have been described in detail above with reference to the accompanying drawings, but this utility model is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model, and these variations still fall within the protection scope of this utility model.

Claims

1. A tunnel widening section lining trolley, comprising several sets of gantry columns (1) and gantry beams (18); characterized in that: Each of the gantry columns (1) is equipped with a U-shaped upper gantry (11) on its outer side; a lower gantry (12) is detachably installed at the lower end of the upper gantry (11) by bolts; a supporting inclined plate (14) is detachably installed between the lower part of the lower gantry (12) and the lower end of the upper gantry (11) by bolts.

2. The tunnel widening section lining trolley according to claim 1, characterized in that: Triangular reinforcing plates (13) are detachably installed at the two inner corners of the upper gantry (11) and between the top of the lower gantry (12) and the bottom of the upper gantry (11) by bolts.

3. The tunnel widening section lining trolley according to claim 1, characterized in that: A first scissor bracket (19) is also fixedly installed between two adjacent gantry columns (1) on the same side.

4. The tunnel widening section lining trolley according to claim 1, characterized in that: A longitudinal beam (15) can be detachably connected between the top and outer side of several upper gantry frames (11) on the same side; a longitudinal beam (15) can be detachably installed between the outer side of several lower gantry frames (12) on the same side.

5. The tunnel widening section lining trolley according to claim 1, characterized in that: It also includes a traveling mechanism (9); the bottom end of the gantry column (1) is detachably connected to the top end of the first lower longitudinal beam (2) by bolts; a second lower longitudinal beam (6) is provided below the first lower longitudinal beam (2); several heightening supports (8) are detachably installed between the first lower longitudinal beam (2) and the second lower longitudinal beam (6) by bolts; several foundation jacks (7) are detachably installed at the bottom end of the second lower longitudinal beam (6); the foundation jacks (7) are supported on the guide rail (10) below them; a mounting seat (3) is connected to the side wall of the gantry column (1); one end of the hydraulic cylinder (4) is connected to the mounting seat (3), and its piston rod is connected to the top end of the guide column (5); the lower end of the guide column (5) passes through the first lower longitudinal beam (2) and the second lower longitudinal beam (6), and is connected to the top end of the traveling mechanism (9).

6. The tunnel widening section lining trolley according to claim 5, characterized in that: A reinforcing screw rod (17) is installed between the bottom of the lower gantry (12) and the second lower longitudinal beam (6); several screw rod jacks are installed between the upper gantry (11) and the lower gantry (12) and the side template; a side template oil cylinder (16) is also installed between the upper gantry (11) and the side template.

7. The tunnel widening section lining trolley according to claim 5, characterized in that: The number of the heightening supports (8) is equal to the number of the gantry columns (1); the heightening supports (8) are located directly below the gantry columns (1).

8. The tunnel widening section lining trolley according to claim 5, characterized in that: Each set of gantry columns (1) consists of two columns on the left and two on the right, and four hydraulic cylinders (4) are installed on the two sets of gantry columns (1) at the front and rear ends respectively.

9. The tunnel widening section lining trolley according to claim 1, characterized in that: Several groups of gantry columns (1) on the same side are connected by longitudinal beams (15); several gantry crossbeams (18) are connected by several longitudinal beams (15).

10. The tunnel widening section lining trolley according to claim 1, characterized in that: A second scissor frame can also be detachably installed between two adjacent upper gantry frames (11) on the same side.

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