Soft lap joint structure of tunnel internal mold trolley

Abstract

The utility model belongs to the technical field of tunnel lining trolleys, and provides a tunnel inner mold trolley soft lap joint structure which comprises an arc supporting plate and a soft lap joint arc plate, the arc supporting plate is hinged to one side of the trolley arc plate, the arc supporting plate is rotated to coincide with the trolley arc plate, and the arc supporting plate in the state of coincidence with the trolley arc plate can horizontally move to generate intervals, so that the soft lap joint arc plate is arranged on the soft lap joint arc plate. A pressing plate horizontally protrudes from the face, away from the trolley arc plate, of the arc supporting plate. The soft lap joint arc plate is arranged between the arc supporting plate and the trolley arc plate, the soft lap joint arc plate horizontally extends towards the arc supporting plate in a protruding mode to form a stress plate, and the stress plate is attached to the outer side of the pressing plate in a covering mode. According to the utility model, the damage to the poured concrete caused by overlarge pressure when the trolley template is erected can be effectively avoided, the adverse effect on the normal operation of a tunnel and the increase of the workload and the cost for repairing concrete defects in the later period are prevented, meanwhile, the sealing effect is good, the liquid leakage phenomenon is avoided, and the use effect is excellent.

Description

Technical Field

[0001] The utility model belongs to the technical field of tunnel lining trolleys, and in particular relates to a soft overlapping structure of a tunnel inner mold trolley. Background Art

[0002] During the secondary lining construction of the tunnel lining trolley, after the lining trolley sets up the formwork, the lining surface needs to be butted against the poured concrete surface, so the formwork and the poured concrete surface need to be effectively overlapped to ensure the construction quality and the overall stability of the tunnel.

[0003] At present, the traditional overlapping method is usually to directly use steel molds to lengthen the trolley arc plate. The trolley formwork's mold closing and mold erecting actions are completed by the operator controlling the extension and retraction of the cylinder. Since the cylinder top lift is large and the overlapping mold is a rigid structure, the concrete at the overlapping position is prone to generate greater pressure during the mold erection process. When the pressure value exceeds the strength value of the concrete at that time, it is easy to cause cracks of varying degrees at this position, causing damage to the poured concrete surface, affecting the normal operation of the tunnel in the later stage, and also increasing the workload and cost of repairing concrete defects in the later stage.

[0004] Therefore, it is necessary to provide an improved technical solution to address the above-mentioned deficiencies in the prior art. Utility Model Content

[0005] The utility model aims to overcome the problem that the overlapping mode of the trolley formwork and the poured concrete surface in the above-mentioned prior art is easy to cause damage to the poured concrete surface, and provides a soft overlapping structure of the tunnel inner formwork trolley.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A soft overlapping structure of a tunnel inner mold trolley comprises: an arc support plate and a soft overlapping arc plate, wherein the arc support plate is hinged to one side of the trolley arc plate so as to rotate the arc support plate to overlap with the trolley arc plate, and the arc support plate in the overlapping state with the trolley arc plate can be horizontally shifted to produce a gap, and a pressure plate is horizontally protruded from one side of the arc support plate away from the trolley arc plate; the soft overlapping arc plate is arranged between the arc support plate and the trolley arc plate, and a force plate is horizontally protruded from the soft overlapping arc plate toward the arc support plate, and the force plate is attached to the outer side of the pressure plate.

[0008] In the soft overlapping structure of the tunnel inner mold trolley as described above, preferably, the end of the trolley arc plate has a pair of hinged plates protruding horizontally toward the arc support plate, and the plate surface of the hinged plate is provided with sliding holes in the horizontal direction.

[0009] Preferably, a pair of ear plates are vertically protruded downward from the end of the arc support plate;

[0010] The ear plate is located between the two hinge plates, and the ear plate and the two hinge plates are connected in series via a hinge shaft.

[0011] Preferably, the hinge shaft is located in the sliding hole, and the hinge shaft is adapted to the sliding hole.

[0012] Preferably, a shaping plate is inserted inside the soft overlapping arc plate, and the end of the shaping plate protrudes outward from the soft overlapping arc plate.

[0013] Preferably, the portion of the shaping plate protruding from the soft overlapping arc plate is located between the corresponding two hinged plates.

[0014] Preferably, the ends of the soft overlapping arc plates are overlapped onto the corresponding two hinged plates.

[0015] Preferably, the arc support plate, the trolley arc plate and the soft overlapping arc plate are fixed by bolts.

[0016] Beneficial effects: The utility model can effectively avoid damage to the poured concrete caused by excessive pressure when the trolley formwork is erected, prevent adverse effects on the normal operation of the tunnel and increase the workload and cost of repairing concrete defects in the later stage. At the same time, the utility model has good sealing effect, will not leak, and has excellent use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings constituting part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments and descriptions of the present invention are used to explain the present invention and do not constitute an improper limitation on the present invention. Among them:

[0018] Figure 1 It is a schematic diagram of the practical application of the utility model;

[0019] Figure 2 It is a bottom view schematic diagram of the utility model;

[0020] Figure 3 for Figure 2 The enlarged schematic diagram at A in the middle;

[0021] Figure 4 It is an overall schematic diagram of the arc plate structure of the trolley of the utility model;

[0022] Figure 5 It is an overall schematic diagram of the soft overlap arc plate structure of the utility model;

[0023] Figure 6 It is an overall schematic diagram of the arc support plate structure of the utility model.

[0024] In the figure: 1. Arc support plate; 2. Trolley arc plate; 3. Pressure plate; 4. Soft lap arc plate; 5. Force plate; 6. Hinge plate; 7. Sliding hole; 8. Ear plate; 9. Hinge shaft; 10. Shaping plate; 11. Bolts. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field belong to the protection scope of the present invention.

[0026] In the description of the present invention, the terms "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and do not require that the present invention must be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention. The terms "connected" and "connection" used in the present invention should be understood in a broad sense. For example, they can be fixed connections or detachable connections; they can be directly connected or indirectly connected through intermediate components. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0027] The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments. It should be noted that the embodiments and features in the embodiments of the present invention can be combined with each other without conflict.

[0028] Embodiment: This embodiment aims to provide a soft overlapping structure of a tunnel inner mold trolley, the main function of which is to avoid damage to the poured concrete surface caused by excessive pressure when the trolley formwork is erected, effectively protect the poured concrete, and ensure the quality of tunnel construction.

[0029] Reference Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 6, including: an arc support plate 1 and a soft overlapping arc plate 4, the arc support plate 1 is hinged on one side of the trolley arc plate 2, the trolley arc plate 2 is a part of the trolley template, the arc support plate 1 and the trolley arc plate 2 are hinged so that the rotating arc support plate 1 can overlap with the trolley arc plate 2, and the arc support plate 1 in this state can be horizontally moved to create a gap to place the soft overlapping arc plate 4, the arc support plate 1 is horizontally protruded with a pressure plate 3 on one side away from the trolley arc plate 2, specifically, both ends of the trolley arc plate 2 are A pair of hinged plates 6 protrude horizontally toward the arc support plate 1, and a sliding hole 7 is provided in the middle of the plate surface of the hinged plate 6 in the horizontal direction. A pair of ear plates 8 protrude vertically downward from both ends of the arc support plate 1. The two ear plates 8 are located between the corresponding two hinged plates 6, and the ear plates 8 are connected in series with the two hinged plates 6 through the hinge shaft 9. The height of the sliding hole 7 matches the diameter of the hinge shaft 9 so that the hinge shaft 9 is located in the sliding hole 7, and the end of the hinge shaft 9 is upset to prevent it from falling out of the sliding hole 7.

[0030] Reference Figure 2 , Figure 3 and Figure 5 , the soft lap arc plate 4 is installed between the arc support plate 1 and the trolley arc plate 2, the soft lap arc plate 4 has a force plate 5 protruding horizontally toward the arc support plate 1, and the force plate 5 is attached to the outer side of the pressure plate 3 to ensure that the force plate 5 completely covers the pressure plate 3, wherein the soft lap arc plate 4 and the force plate 5 are both rubber plates, and an arc-shaped shaping plate 10 is inserted inside the soft lap arc plate 4, and the length of the shaping plate 10 is greater than the soft lap arc plate 4, so that both ends of the shaping plate 10 are protruding from the soft lap arc plate 4, then the part of the shaping plate 10 protruding from the soft lap arc plate 4 is inserted between the corresponding two hinged plates 6, and the end of the soft lap arc plate 4 is overlapped on the corresponding two hinged plates 6, this setting is to facilitate the pre-fixation of the soft lap arc plate 4 and provide convenience for the workers.

[0031] In this embodiment, the arc support plate 1, the trolley arc plate 2 and the soft overlapping arc plate 4 are fixed by bolts 11. While the three are fastened by the bolts 11, the soft overlapping arc plate 4 can also play a sealing role to prevent liquid leakage at the joint between the arc support plate 1 and the trolley arc plate 2 when the arc support plate 1 and the trolley arc plate 2 are directly in contact.

[0032] In actual use, the trolley arc plate 2 is aligned with the poured concrete, and then the trolley telescopic cylinder and the screw rod are adjusted to make the soft overlapping arc plate 4 contact with the poured concrete surface, thereby completing the overlapping of the concrete.

[0033] The soft overlap structure provided in this embodiment can effectively avoid damage to the poured concrete caused by excessive pressure when the trolley formwork is erected, thereby preventing adverse effects on the normal operation of the tunnel and increasing the workload and cost of repairing concrete defects in the later stage. At the same time, it has good sealing effect, will not leak, and the use effect is excellent.

[0034] It should be understood that the above description is merely exemplary and the embodiments of the present application do not limit this.

[0035] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention are within the scope of protection of the pending claims of the present invention.

Claims

1. A soft overlap structure of a tunnel inner mold trolley, characterized in that: include: The arc support plate is hinged to one side of the trolley arc plate, so that the arc support plate can be rotated to overlap with the trolley arc plate, and the arc support plate in the overlapped state with the trolley arc plate can be horizontally moved to generate a gap, and a pressure plate is horizontally protruded from one side of the arc support plate away from the trolley arc plate; A soft overlapping arc plate is arranged between the arc support plate and the trolley arc plate. The soft overlapping arc plate has a force-bearing plate horizontally protruding toward the arc support plate, and the force-bearing plate is attached to the outer side of the pressure plate.

2. The soft overlap structure of the tunnel inner mold trolley according to claim 1 is characterized in that: A pair of hinged plates are horizontally protruded from the end of the trolley arc plate toward the arc support plate, and sliding holes are arranged on the plate surfaces of the hinged plates along the horizontal direction.

3. The soft overlap structure of the tunnel inner mold trolley according to claim 2 is characterized in that: A pair of ear plates are vertically protruded downward from the end of the arc support plate; The ear plate is located between the two hinge plates, and the ear plate and the two hinge plates are connected in series via a hinge shaft.

4. The soft overlapping structure of the tunnel inner mold trolley according to claim 3 is characterized in that: The hinge shaft is located in the sliding hole, and the hinge shaft is adapted to the sliding hole.

5. The soft overlap structure of the tunnel inner mold trolley according to claim 2 is characterized in that: The soft overlapping arc plate is interspersed with a shaping plate, and the end of the shaping plate protrudes outward from the soft overlapping arc plate.

6. The soft overlapping structure of the tunnel inner mold trolley according to claim 5 is characterized in that: The portion of the shaping plate protruding from the soft overlapping arc plate is located between the corresponding two hinged plates.

7. The soft overlapping structure of the tunnel inner mold trolley according to claim 6 is characterized in that: The ends of the soft overlapping arc plate are overlapped on the corresponding two hinged plates.

8. The soft overlapping structure of the tunnel inner mold trolley according to claim 1 is characterized in that: The arc support plate, the trolley arc plate and the soft overlapping arc plate are fixed by bolts.

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