Movable construction operation trolley for shield tunnel

Abstract

The utility model discloses a movable construction operation trolley for a shield tunnel, which comprises a main body frame supported on a track at the bottom of the tunnel, at least one layer of operation platform is arranged on the main body frame, side supporting rods are symmetrically arranged on two sides of the main body frame, a synchronous pushing piece is connected between the opposite side supporting rods, and the synchronous pushing piece is connected with the main body frame. The synchronous pushing pieces are used for pushing the opposite side supporting rods to move outwards in the reverse direction so as to abut against the side wall of the tunnel. According to the movable construction operation trolley for the shield tunnel, the working stability and safety are improved.

Description

Technical Field

[0001] This utility model relates to the field of shield tunnel construction technology, specifically to a mobile construction work trolley for shield tunnels. Background Technology

[0002] During the construction of underground shield tunnels, when synchronous grouting loses water and consolidates, local filling is not dense during excavation, or the synchronous grouting effect is not ideal when excavating in water-rich sections or when the groundwater pressure is too high, it is necessary to use a mobile grouting trolley to perform grouting after excavation.

[0003] Existing patent application document No. 201921647568.7 discloses a secondary grouting construction platform for tunnel segments, including a main frame, a first platform, a second platform, and wheels. The first platform is located in the upper middle part of the main frame, the second platform is located above the first platform, and the wheels are located at the bottom of the main frame. A first ladder is provided between the bottom of the main frame and the first platform, and a second ladder is provided between the first platform and the second platform. This secondary grouting construction platform moves along the tunnel to perform grouting. However, during the grouting process, the entire platform is only supported on the platform's traveling track, with no support on the surrounding sides, resulting in poor working stability and low safety. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the shortcomings of the existing technology and provide a mobile construction trolley that improves working stability and safety.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] A mobile construction work trolley for shield tunnels includes a main frame supported on a track at the bottom of the tunnel. The main frame is provided with at least one operating platform. Side support rods are symmetrically arranged on both sides of the main frame. A synchronous pushing member is connected between the opposite side support rods. The synchronous pushing member is used to push the opposite side support rods to move outward in opposite directions to support them against the side wall of the tunnel.

[0007] As a further improvement to the above technical solution:

[0008] The synchronous pusher includes a double-ended threaded sleeve and a screwing operation part provided on the outer wall of the double-ended threaded sleeve. The two ends of the double-ended threaded sleeve have opposite helical directions, and the inner ends of the opposite side support rods are threadedly connected to the two ends of the double-ended threaded sleeve respectively.

[0009] The main frame and each side support rod are respectively provided with guide sleeves at their corresponding positions, and the side support rods are movably inserted into the corresponding guide sleeves.

[0010] The outer end of the side support rod is provided with a side support foot.

[0011] The side support foot is threadedly connected to the side support rod, and the side support foot is provided with a screwing part.

[0012] The main frame is provided with diagonal bracing rods on both sides of its lower part.

[0013] One end of the diagonal brace is hinged to the main frame, and the other end is provided with a diagonal brace foot.

[0014] The diagonal brace foot is threadedly connected to the diagonal brace rod, and the diagonal brace foot is provided with a rotating operating part.

[0015] The bottom of the operating platform is provided with an auxiliary sleeve, and the pusher is movably inserted into the corresponding auxiliary sleeve.

[0016] The operating platform is surrounded by a fence, and the main frame is equipped with stairs for going up and down the operating platform.

[0017] Compared with the prior art, the advantages of this utility model are:

[0018] After the mobile construction trolley of this utility model moves along the track to the working position, the corresponding side support rods are pushed outward in the opposite direction (towards both sides of the tunnel) by the synchronous pusher, so that the corresponding side support rods support the two side walls of the tunnel respectively, preventing the construction trolley from swinging to both sides during construction (such as grouting), thereby improving working stability and safety. Attached Figure Description

[0019] Figure 1 This is a structural schematic diagram of the mobile construction work trolley used in shield tunnels according to this utility model.

[0020] Figure 2 yes Figure 1 A magnified structural diagram of point A in the middle.

[0021] Figure 3 yes Figure 1 A magnified structural diagram at point B in the middle.

[0022] Figure 4 This is a side view of the main frame structure of the present invention used in shield tunnels.

[0023] The labels in the diagram represent:

[0024] 1. Tunnel; 2. Track; 3. Main frame; 31. Guide sleeve; 32. Staircase; 4. Operating platform; 41. Fence; 5. Side support rod; 51. Side support foot; 511. Tightening part; 6. Pushing part; 61. Double-ended threaded sleeve; 62. Tightening operating part; 7. Diagonal support rod; 71. Diagonal support foot; 711. Rotating operating part; 8. Auxiliary sleeve. Detailed Implementation

[0025] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0026] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0027] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0028] In this utility model, unless otherwise explicitly specified and limited, the terms "assembly," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0029] Figures 1 to 4 This invention illustrates an embodiment of a mobile construction work trolley for shield tunnels. The mobile construction work trolley for shield tunnels in this embodiment includes a main frame 3 supported on a track 2 at the bottom of a tunnel 1. The main frame 3 is provided with at least one operating platform 4. Side support rods 5 are symmetrically arranged on both sides of the main frame 3. A synchronous pushing member 6 is connected between the opposite side support rods 5. The synchronous pushing member 6 is used to push the opposite side support rods 5 to move outward in the opposite direction to support the side wall of the tunnel 1.

[0030] After the mobile construction trolley moves along the track 2 to the working position, the synchronous pusher 6 pushes the opposite side support rods 5 to move outward in the opposite direction (towards both sides of the tunnel 1), so that the opposite side support rods 5 support the side walls of the tunnel 1 respectively, preventing the construction trolley from swinging to both sides during construction (such as grouting), and improving working stability and safety.

[0031] Furthermore, in this embodiment, as Figure 1 As shown, the synchronous pusher 6 includes a double-ended threaded sleeve 61 and a screwing operation part 62 provided on the outer wall of the double-ended threaded sleeve 61. The helical directions of the two ends of the double-ended threaded sleeve 61 are opposite, and the inner ends of the opposite side support rods 5 are threadedly connected to the two ends of the double-ended threaded sleeve 61 respectively. When the double-ended threaded sleeve 61 is rotated in the forward direction, the double-ended threaded sleeve 61 pushes the side support rods 5 at both ends to move outward in the opposite direction (or backward) to support the side wall of the tunnel 1 through the threaded engagement. When the double-ended threaded sleeve 61 is rotated in the reverse direction, the double-ended threaded sleeve 61 pushes the side support rods 5 at both ends to move towards each other through the threaded engagement to release the supporting effect on the side wall of the tunnel 1. The structure is simple and the operation is convenient. Specifically, the helical directions of the internal threads at both ends of the double-ended threaded sleeve 61 are opposite, and the inner ends (opposite ends) of the opposite side support rods 5 are threadedly connected to the internal threads at both ends of the double-ended threaded sleeve 61 respectively.

[0032] Furthermore, in this embodiment, guide sleeves 31 are respectively provided at the positions corresponding to the main frame 3 and each side support rod 5, and the side support rod 5 is movably inserted into the corresponding guide sleeve 31. The guide sleeve 31 guides the movement of the side support rod 5, and the guide sleeve 31 can be arranged horizontally so that the horizontal movement of the side support rod 5 can generate a lateral support force on the main frame 3 in the horizontal direction. This facilitates the installation of the counter-support mechanism composed of the guide sleeve 31 and the side support rod 5 below the operating platform 4. Preferably, the guide sleeve 31 and the side support rod 5 together form a counter-support mechanism, which is installed below the operating platform 4. More preferably, counter-support mechanisms are installed below all parts of the operating platform 4, thereby increasing the counter-support points to better improve stability.

[0033] Furthermore, in this embodiment, as Figure 1 and Figure 2 As shown, the outer end of the side support rod 5 is provided with a side support foot 51. The side support rod 5 is supported against the side wall of the tunnel 1 by the side support foot 51.

[0034] Furthermore, in this embodiment, as Figure 2 As shown, the side support leg 51 is threadedly connected to the side support rod 5, and the side support leg 51 is provided with a screwing part 511. Thus, if one side support leg 51 is already supported against one side wall of the tunnel 1, but the other side support leg 51 is not yet supported against the other side wall of the tunnel 1, the screwing part 511 on the other side support leg 51 can be rotated to move the side support leg 51 outwards to support against the other side wall of the tunnel 1. Preferably, the outer end of the side support leg 51 (the end away from the side support rod 5) is provided with an arc-shaped side support plate, and the side support leg 51 is supported against the side wall of the tunnel 1 by the side support plate. More preferably, the side support plate and the side support leg 51 are rotatably connected.

[0035] Furthermore, in this embodiment, as Figure 1As shown, the lower two sides of the main frame 3 are respectively provided with diagonal bracing rods 7. The lower two sides of the main frame 3 can also be supported against the sidewalls of the tunnel 1 by the diagonal bracing rods 7, further enhancing the overall stability.

[0036] Furthermore, in this embodiment, as Figure 3 As shown, one end of the diagonal brace 7 is hinged to the main frame 3, and the other end is provided with a diagonal brace foot 71. Specifically, the diagonal brace foot 71 is threadedly connected to the diagonal brace 7, and the diagonal brace foot 71 is provided with a rotating operating part 711. By turning the rotating operating part 711, the diagonal brace foot 71 can be moved relative to the diagonal brace 7 to support itself against the side wall of the tunnel 1 or to release the supporting effect on the side wall of the tunnel 1. Preferably, the outer end of the diagonal brace foot 71 (the end away from the diagonal brace 7) is provided with an arc-shaped diagonal brace plate, and the diagonal brace foot 71 is supported against the side wall of the tunnel 1 by the diagonal brace plate. More preferably, the diagonal brace plate and the diagonal brace 7 are rotatably connected.

[0037] Furthermore, in this embodiment, as Figure 1 As shown, the bottom of the operating platform 4 is provided with an auxiliary sleeve 8, and the pusher 6 is movably inserted into the corresponding auxiliary sleeve 8 to improve the stability of the pusher 6 movement.

[0038] Furthermore, in this embodiment, as Figure 4 As shown, the operating platform 4 is surrounded by a fence 41, and the main frame 3 is equipped with stairs 32 for construction personnel to go up and down the operating platform 4.

[0039] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make many possible variations and modifications to the present invention, or modify it into equivalent embodiments, without departing from the scope of the present invention. Therefore, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention, without departing from the content of the present invention, should fall within the protection scope of the present invention.

Claims

1. A mobile construction work trolley for shield tunnels, comprising a main frame (3) supported on a track (2) at the bottom of a tunnel (1), wherein at least one operating platform (4) is provided on the main frame (3), characterized in that: The main frame (3) is provided with symmetrical side support rods (5) on both sides, and a synchronous pusher (6) is connected between the opposite side support rods (5). The synchronous pusher (6) is used to push the opposite side support rods (5) to move outward in the opposite direction to support the side wall of the tunnel (1).

2. The mobile construction work trolley for shield tunnels according to claim 1, characterized in that: The synchronous pusher (6) includes a double-ended threaded sleeve (61) and a screwing operation part (62) provided on the outer wall of the double-ended threaded sleeve (61). The spiral directions of the two threads of the double-ended threaded sleeve (61) are opposite, and the inner end of the opposite side support rod (5) is threadedly connected to both ends of the double-ended threaded sleeve (61).

3. The mobile construction work trolley for shield tunnels according to claim 1, characterized in that: The main frame (3) and each side support rod (5) are provided with guide sleeves (31) at their corresponding positions, and the side support rods (5) are movably inserted into the corresponding guide sleeves (31).

4. The mobile construction work trolley for shield tunnels according to claim 1, characterized in that: The outer end of the side support rod (5) is provided with a side support foot (51).

5. The mobile construction work trolley for shield tunnels according to claim 4, characterized in that: The side support foot (51) is threadedly connected to the side support rod (5), and the side support foot (51) is provided with a screwing part (511).

6. The mobile construction work trolley for shield tunnels according to claim 1, characterized in that: The main frame (3) is provided with diagonal bracing rods (7) on both sides of its lower part.

7. The mobile construction work trolley for shield tunnels according to claim 6, characterized in that: One end of the diagonal brace (7) is hinged to the main frame (3), and the other end is provided with a diagonal brace foot (71).

8. The mobile construction work trolley for shield tunnels according to claim 7, characterized in that: The diagonal brace (71) is threadedly connected to the diagonal brace (7), and the diagonal brace (71) is provided with a rotating operating part (711).

9. The mobile construction work trolley for shield tunnels according to any one of claims 1 to 8, characterized in that: The bottom of the operating platform (4) is provided with an auxiliary sleeve (8), and the pusher (6) is movably inserted into the corresponding auxiliary sleeve (8).

10. The mobile construction work trolley for shield tunnels according to any one of claims 1 to 8, characterized in that: The operating platform (4) is surrounded by a fence (41), and the main frame (3) is provided with stairs (32) for construction personnel to go up and down the operating platform (4).

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