Supporting device for tunnel secondary lining trolley

Abstract

The utility model provides a tunnel secondary lining trolley supporting device which comprises a horizontal base, a lateral base, a first telescopic assembly and a second telescopic assembly, the upper portion of one end of the horizontal base is hinged to one end of the first telescopic assembly, the other end of the horizontal base is hinged to the lateral base, and the other end of the first telescopic assembly abuts against the side wall of a trolley. A second telescopic assembly is arranged on the outer side of the lateral base, one end of the second telescopic assembly abuts against the lateral base, and the other end of the second telescopic assembly abuts against the lower end of the tunnel arch face. The horizontal base and the lateral base are directly clamped and sleeved at the transverse end of the tunnel ground to realize fixation without digging holes in the tunnel ground to form supporting points, so that the construction efficiency is improved, and the construction cost is saved.

Description

Technical Field

[0001] This utility model belongs to the field of tunnel construction technology, specifically relating to a tunnel secondary lining trolley support device. Background Technology

[0002] During the construction of the tunnel arch wall, a tunnel lining trolley is used to form a supporting template outside the tunnel arch surface. Concrete is then poured into the gap between the template and the tunnel arch surface to complete the construction of one side of the arch wall. During concrete pouring, the outer perimeter of the tunnel lining trolley needs support. The existing support method involves manually digging a trench in the concrete floor inside the tunnel, then placing one end of a support rod at an angle inside the trench, and the other end at an angle against the side wall of the tunnel lining trolley. This method requires manually digging the trench in the tunnel floor first, and then backfilling it with concrete after construction. This is not only inefficient and wasteful of manpower, but also prone to the support rod slipping out of the trench due to irregular shapes, compromising safety. Utility Model Content

[0003] To solve the above-mentioned technical problems, the purpose of this utility model is to provide a tunnel secondary lining trolley support device, which can be directly nested in the transverse end of the tunnel surface and use the transverse end as a support base point, with high safety and no need to excavate the tunnel surface.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A tunnel lining trolley support device includes a horizontal base, a lateral base, a first telescopic component, and a second telescopic component. One end of the horizontal base is hinged to one end of the first telescopic component, and the other end of the horizontal base is hinged to the lateral base. The other end of the first telescopic component abuts against the side wall of the trolley. The inner side of the end of the lateral base that is hinged to the horizontal base is used to nest the transverse end of the tunnel surface. The second telescopic component is disposed on the outer side of the lateral base. One end of the second telescopic component abuts against the lateral base, and the other end abuts against the lower end of the tunnel arch.

[0006] Furthermore, it also includes a cable, one end of which is connected to one end of the horizontal base and the other end of which is connected to the lateral base.

[0007] Furthermore, one end of the horizontal base is provided with a lug seat, and one end of the first telescopic component and the other end of the cable are both hinged to the lug seat.

[0008] Furthermore, the lug seat includes a lug plate and a connecting plate. A pair of lug plates are arranged at intervals on the horizontal base. One end of the connecting plate is hinged between the pair of lug plates by a pin, and the other end of the connecting plate is hinged to one end of the first telescopic component.

[0009] Furthermore, the first telescopic component includes a sleeve and a lead screw, with a pair of lead screws respectively screwed to both ends of the sleeve, and the lead screws being reversed to each other.

[0010] Furthermore, the second telescopic component is an electric telescopic cylinder.

[0011] Furthermore, the end of the second telescopic component used to resist the tunnel arch surface is provided with an arc-shaped surface.

[0012] Furthermore, a friction pad is provided on the arc-shaped surface.

[0013] By adopting the above technical solution, this utility model has the following advantages and effects:

[0014] This utility model discloses a tunnel secondary lining trolley support device, which uses the transverse end of the tunnel surface as the support base point. The horizontal base and the lateral base are hinged together and directly nested into the transverse end of the tunnel surface to achieve fixation. There is no need to dig a pit in the tunnel surface to form a support point, which reduces construction steps, improves construction efficiency, and eliminates the need for secondary backfilling of the tunnel surface, reducing material waste and saving costs. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] The attached diagram is labeled as follows: 1-Trolley sidewall, 2-Sleeve, 3-Screw rod, 4-Coupling plate, 5-Leg plate, 6-Horizontal base, 7-Tunnel ground, 8-Side base, 9-Second telescopic assembly, 10-Tunnel arch, 11-Cable. Detailed Implementation

[0017] The embodiments of this utility model will be described in detail below with reference to the accompanying drawings, so as to more clearly understand the purpose, features and advantages of this utility model. It should be understood that the embodiments shown in the drawings are not intended to limit the scope of this utility model, but are only for illustrating the essential spirit of the technical solution of this utility model.

[0018] like Figure 1As shown. This utility model discloses a tunnel lining trolley support device, including a horizontal base 6, a lateral base 8, a first telescopic component, and a second telescopic component 9. One end of the horizontal base 6 is hinged to one end of the first telescopic component, and the other end of the horizontal base 6 is hinged to the lateral base 8. The other end of the first telescopic component abuts against the trolley sidewall 1. The inner side of the end of the lateral base 8 that is hinged to the horizontal base 6 is used to nest the transverse end of the tunnel surface 7. The second telescopic component 9 is provided on the outer side of the lateral base 8. One end of the second telescopic component 9 abuts against the lateral base 8, and the other end abuts against the lower end of the tunnel arch surface 10.

[0019] Specifically, the other end of the horizontal base 6 and the upper end of the lateral base 8 are hinged and fitted onto the end of the transverse end of the tunnel surface 7. One side of the horizontal base 6 is attached to the upper surface of the transverse end of the tunnel surface 7, and one side of the lateral base 8 is attached to the side surface of the transverse end of the tunnel surface 7. The included angle α between the horizontal base 6 and the lateral base 8 is adjusted according to the included angle between the upper surface and the side surface of the transverse end of the tunnel surface 7 to keep them as consistent as possible, so that one end of the horizontal base 6 and the lateral base 8 is attached to the transverse end of the tunnel surface 7. The second telescopic component 9 abuts between the lateral base 8 and the tunnel arch surface 10 to fix the other end of the horizontal base 6. One end of the horizontal base 6 abuts against the first telescopic component to achieve oblique support for the trolley side wall 1.

[0020] Furthermore, to facilitate adjustment of the angle α between the horizontal base 6 and the lateral base 8, a cable 11 is provided between the horizontal base 6 and the lateral base. One end of the cable 11 is connected to one end of the horizontal base 6, and the other end is connected to the lateral base. When it is necessary to adjust the angle α between the horizontal base 6 and the lateral base 8, one end of the cable 11 at the lateral base end is pulled up, and the other end of the cable 11 drives the lateral base 8 to rotate around the hinge point to achieve angle adjustment. Then, one end of the cable 11 on one side of the horizontal base 6 is fixed to the horizontal base 6. The fixing can be done by binding or hanging.

[0021] Furthermore, a lug is provided at one end of the horizontal base 6, and one end of the first telescopic component and the other end of the cable 11 are both hinged to the lug. One end of the first telescopic component is hinged to the upper end of the lug, and the other end of the cable 11 is hinged to the lower end of the lug. This makes the cable 11 and the first telescopic component set at an upper and lower interval, so as to avoid affecting the operation of the cable 11 or the first telescopic component.

[0022] Furthermore, the lug seat includes a lug plate 5 and a connecting plate 4. A pair of lug plates 5 are arranged opposite each other on the horizontal base 6. One end of the connecting plate 4 is hinged between the pair of lug plates 5 by a pin, and the other end of the connecting plate 4 is hinged to one end of the first telescopic component. The bottom of the pair of lug plates 5 is fixed on the horizontal base 6, and both ends of the pin are respectively embedded in the lug plates 5. One end of the connecting plate 4 is slidably nested on the pin, and the other end of the connecting plate 4 is hinged to the first telescopic component through a rotating shaft.

[0023] Furthermore, the first telescopic assembly includes a sleeve 2 and lead screws 3. A pair of lead screws 3 are screwed to both ends of the sleeve 2, and their threads are opposite to each other. One end of the lead screw 3 extends out of the sleeve 2 and is hinged to the side wall 1 of the trolley, while the other end of the lead screw 3 extends out of the sleeve and is hinged to the connecting plate 4. By rotating the sleeve 2 in both directions, the pair of lead screws 3 extend out of or retract into the sleeve 2 relative to each other, thereby realizing the telescopic movement of the first telescopic assembly.

[0024] As a preferred option, the first telescopic component can be an electric telescopic cylinder, in which case the fixed end of the electric telescopic cylinder is hinged to the connecting plate 4, and the telescopic end of the electric telescopic cylinder is hinged to the side wall 1 of the trolley.

[0025] Furthermore, since the space between the lower end of the tunnel arch 10 and the lateral end of the tunnel ground 7 is limited, the second telescopic component 9 is preferably an electric telescopic cylinder. In this case, the telescopic end of the second telescopic component 9 is hinged to the outer side of the lateral base, and the fixed end of the second telescopic component 9 is attached to support the lower end of the tunnel arch 10.

[0026] When the first or second telescopic component is an electric telescopic cylinder, the first or second telescopic component is controlled to extend or retract by a hydraulic pump.

[0027] Furthermore, the end of the second telescopic component 9 used to resist the tunnel arch 10 is provided with an arc-shaped surface. The curvature of the arc-shaped surface is consistent with the curvature of the tunnel arch 10, so that the second telescopic component 9 is stably supported on the tunnel arch 10.

[0028] Furthermore, in order to prevent the second telescopic component 9 from moving along the tunnel arch surface 10 under force, a friction pad is provided on the arc surface. The end of the second telescopic component 9 is supported on the friction pad. The side of the friction pad that is in contact with the tunnel arch surface 10 has ridges or protrusions. The friction pad can provide friction to prevent the second telescopic component 9 from sliding.

[0029] In use, the horizontal base 6 is placed on the tunnel floor 7, and the lateral base 8 is placed along the transverse end face of the tunnel floor 7. The included angle α between the lateral base 8 and the horizontal base 6 can be adjusted by the cable 11 so that they match one side of the transverse side of the tunnel floor 7. One end of the cable 11 is fixed to the horizontal base 6. One end of the second telescopic component is supported on the lower end of the tunnel arch 10 opposite to the lateral base 8. The lateral base 8 and the horizontal base 6 are fixed by adjusting the length of the second telescopic component. Finally, one end of the first telescopic component is pressed against the side wall 1 of the trolley, and the length of the first telescopic component is adjusted to press the side wall 1 of the trolley tightly.

[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A tunnel lining trolley support apparatus, characterised in that, The system includes a horizontal base, a lateral base, a first telescopic component, and a second telescopic component. One end of the horizontal base is hinged to one end of the first telescopic component, and the other end of the horizontal base is hinged to the lateral base. The other end of the first telescopic component abuts against the side wall of the trolley. The inner side of the end of the lateral base that is hinged to the horizontal base is used to nest the transverse end of the tunnel floor. The second telescopic component is disposed on the outer side of the lateral base. One end of the second telescopic component abuts against the lateral base, and the other end abuts against the lower end of the tunnel arch.

2. A two-liner tunnel jumbo support device according to claim 1, characterized in that It also includes a cable, one end of which is connected to one end of the horizontal base and the other end of which is connected to the lateral base.

3. A two-liner tunnel jumbo support device according to claim 2, characterized in that One end of the horizontal base is provided with a lug seat, and one end of the first telescopic component and the other end of the cable are both hinged to the lug seat.

4. A two-liner tunnel jumbo support device according to claim 3, characterized in that The lug seat includes a lug plate and a connecting plate. A pair of lug plates are arranged at intervals on the horizontal base. One end of the connecting plate is hinged between the pair of lug plates by a pin, and the other end of the connecting plate is hinged to one end of the first telescopic component.

5. A device according to claim 1, wherein, The first telescopic assembly includes a sleeve and lead screws, with a pair of lead screws respectively screwed to both ends of the sleeve and being reverse threads of each other.

6. A two-liner tunnel jumbo support device according to claim 1, characterized in that The second telescopic component is an electric telescopic cylinder.

7. A two-liner tunnel jumbo support device according to claim 6, characterized in that The second telescopic component has an arc-shaped surface at its end for resisting the tunnel arch.

8. A two-liner tunnel jumbo support device according to claim 7, characterized in that A friction pad is provided on the arc-shaped surface.

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