Corbelling lining trolley

Abstract

This application relates to a corbel lining trolley, including a frame assembly, a template assembly, and a drive assembly. The template assembly includes a first template, a second template, and a third template. The first template is connected to the frame assembly and is used to fit against the tunnel roof. The second template is connected to the first template and is used to fit against the tunnel side. The third template is connected to the second template and can cooperate with the second template to form a corbel template for casting the corbel structure. The drive assembly includes a first drive member and a second drive member. The first drive member is connected to the third template and is used to drive the third template to rotate towards the frame assembly to avoid the corbel structure. The second drive member is connected to the frame assembly and the second template and is used to drive the second template to move closer to or away from the tunnel inner wall. Therefore, this corbel lining trolley not only improves the demolding efficiency of the corbel structure but also ensures that the integrity of the corbel structure is not affected.

Description

Technical Field

[0001] This application relates to the field of underground engineering construction equipment technology, and in particular to a corbel lining trolley. Background Technology

[0002] Lining trolleys are specialized equipment used in railway and highway tunnel construction for pouring and shaping concrete into the inner wall of tunnels. With the continuous development of tunnel engineering construction, the requirements for the quality and efficiency of tunnel lining construction are gradually increasing. Tunnel cross-sections with corbel structures (used for installing cable troughs, cover plates, etc.) are becoming more and more common, and the corresponding corbel lining trolleys have become key equipment in tunnel construction. The industry's requirements for their demolding efficiency and protection capabilities of finished lining products are also constantly improving.

[0003] However, when demolding the corbel formwork in existing lining trolleys, the entire formwork needs to be moved outward a considerable distance. The edges of the steel formwork are highly susceptible to collision and scraping against the fragile corners of the concrete corbel, leading to damage and chipping of the corbel corners, severely affecting the appearance quality and structural integrity of the lining. Furthermore, if the corbel corners are damaged, secondary repairs are required, which not only increases labor and material costs but also delays the overall construction schedule.

[0004] In addition, when demolding the corbel, the entire corbel template needs to be moved horizontally and the upper and lower parts of the corbel template need to be demolded separately. This demolding method is complicated, time-consuming, and increases the working time required for tunnel construction. Summary of the Invention

[0005] Therefore, it is necessary to provide a corbel lining trolley to address the current problems of inconvenient demolding of corbel templates and the easy damage to corbels.

[0006] The first aspect of this application provides a corbel lining trolley, comprising:

[0007] Chassis components;

[0008] The template assembly includes a first template, a second template, and a third template. The first template is connected to the frame assembly, the second template is connected to the first template, and the third template is connected to the second template. The first template is used to fit against the top of the tunnel, the second template is used to fit against the side of the tunnel, and the third template cooperates with the second template to construct a cantilever template for forming a cantilever structure.

[0009] The drive assembly includes a first drive member and a second drive member. The first drive member is connected to the third template and is used to drive the third template to rotate toward the frame assembly to avoid the bracket structure. The second drive member is connected to the frame assembly and the second template and is used to drive the second template to approach or move away from the tunnel wall.

[0010] In one embodiment, the drive assembly further includes a third drive member connected to the frame assembly, the third drive member being used to drive the frame assembly to rise or fall, and to drive the template assembly to move synchronously via the frame assembly.

[0011] In one embodiment, the second template has a mounting groove on the side opposite to the frame assembly, and the third template is movably disposed within the mounting groove.

[0012] In one embodiment, the third template is an L-shaped structural member, with the first end of the L-shaped third template hinged to the second template and the second end of the third template hinged to the first driving member.

[0013] In one embodiment, a limiting member is provided at the second end of the third template. The limiting member is hinged to the first driving member and can abut against the wall of the mounting groove to limit the rotation stroke of the third template.

[0014] In one embodiment, a limiting member is provided at the second end of the third template. The limiting member is hinged to the first driving member and can abut against the wall of the mounting groove to limit the rotation stroke of the third template.

[0015] In one embodiment, the first template and the second template are hinged together.

[0016] In one embodiment, the frame assembly includes a gantry and a bracket, the bracket being disposed on top of the gantry and connected to the first template to support the first template in contact with the tunnel roof wall.

[0017] In one embodiment, the corbel lining trolley further includes a support assembly, which is detachably connected to the frame assembly and the second template, and the support assembly is used to support the second template in contact with the tunnel sidewall.

[0018] In one embodiment, the support component includes a plurality of support members, which are spaced apart along the height direction of the second template.

[0019] In one embodiment, the corbel lining trolley further includes a moving mechanism located at the bottom of the frame assembly, the moving mechanism being used to drive the frame assembly to move along a predetermined path.

[0020] This application provides a corbel lining trolley, wherein a first template is attached to the top of the tunnel, a second template is attached to the sidewall of the tunnel, and a third template cooperates with the second template to construct a corbel template for forming a corbel structure. A first drive member is connected to the third template to drive the third template to rotate toward the frame assembly, thereby separating the third template from the upper part of the corbel structure. The second drive member is connected to the second template to drive the second template to separate from the tunnel sidewall and the corbel structure.

[0021] Therefore, through the cooperation of the first driving component and the third template, the third template is separated from the upper part of the corbel structure without damage. Similarly, through the cooperation of the second driving component and the second template, the second template is separated from the tunnel sidewall and the remaining part of the corbel structure without damage. Furthermore, the entire demolding process only requires rotating the second and third templates, fundamentally avoiding hard scraping against the corbel structure and effectively protecting the integrity of the formed corbel structure. Simultaneously, the first and second driving components can directly drive their corresponding template components to move closer to or further away from the tunnel inner wall and the corbel structure. Compared to the traditional demolding method that involves multiple disassemblies of the template followed by separate translations or rotations, the demolding method of the corbel lining trolley in this application further simplifies the demolding action and improves demolding efficiency. Attached Figure Description

[0022] Figure 1 This is a structural schematic diagram of the corbel lining trolley in the masonry state according to an embodiment of this application.

[0023] Figure 2 This is a structural schematic diagram of the demolding state of the corbel lining trolley according to an embodiment of this application.

[0024] Figure 3 This is an enlarged view of point A during the masonry process of the corbel lining trolley according to an embodiment of this application.

[0025] Figure 4 This is an enlarged view of point B when the corbel lining trolley is demolded according to an embodiment of this application.

[0026] Explanation of reference numerals in the attached figures:

[0027] 10. Chassis assembly; 11. Mast; 12. Bracket;

[0028] 20. Template component; 21. First template; 22. Second template; 221. Mounting slot; 23. Third template; 24. Limiting component;

[0029] 30. Drive component; 31. First drive element; 32. Second drive element; 33. Third drive element;

[0030] 40. Supporting components; 41. Supporting parts;

[0031] 50. Moving mechanism;

[0032] 60. Cowhide structure. Detailed Implementation

[0033] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0034] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application 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, and therefore should not be construed as a limitation of this application.

[0035] Furthermore, where the terms "first" and "second" appear, these terms are 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 with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0036] This application provides a corbel lining trolley suitable for construction within tunnels to complete the concrete pouring and molding of the tunnel inner wall and corbel structure 60. Simultaneously, during the demolding of the corbel structure 60, the corbel lining trolley can achieve rapid demolding from the poured corbel structure 60 and effectively avoid collisions with the corbel structure 60, thus preventing damage or other adverse conditions.

[0037] like Figure 1As shown, the corbel lining trolley includes a frame assembly 10, a template assembly 20, and a drive assembly 30.

[0038] The template assembly 20 includes a first template 21, a second template 22, and a third template 23. The first template 21 is connected to the frame assembly 10 and is used to fit against the top of the tunnel. The second template 22 is connected to the first template 21 and is used to fit against the side of the tunnel. The second template 22 has at least two parts, and each of the at least two parts of the second template 22 is connected to both sides of the first template 21. The third template 23 is connected to the second template 22 and can cooperate with the second template 22 to form a corbel template for casting the corbel structure 60.

[0039] It should be noted that in the formed corbel template, the second template 22 can serve as the side and bottom template of the corbel structure 60, while the third template 23 can serve as the top template of the corbel structure 60.

[0040] The drive assembly 30 includes a first drive member 31 and a second drive member 32. The first drive member 31 is connected to the third template 23 and is used to drive the second template 22 to rotate towards the frame assembly 10 to avoid the formed corbel structure 60. The second drive member 32 is connected to both the frame assembly 10 and the second template 22, and is used to drive the second template 22 to approach or move away from the inner wall of the tunnel side.

[0041] During the demolding of the cast-in-place corbel structure 60, the first drive component 31 first drives the third template 23 to rotate, separating it from the corbel structure 60. Then, the second drive component 32 drives the second template 22 to rotate relative to the first template 21, separating it from the tunnel sidewall. This completes the demolding of the corbel structure 60. During the demolding process, the third template 23 is pre-separated from the corbel structure 60 to prevent further contact. Simultaneously, the demolding of the tunnel sidewall is also completed while the corbel structure 60 is being demolded. Therefore, this corbel lining trolley not only improves the demolding efficiency of the corbel structure 60 but also ensures that the integrity of the corbel structure 60 is not affected.

[0042] In some embodiments, such as Figure 1 and Figure 2 As shown, the drive assembly 30 also includes a third drive component 33, which is connected to the frame assembly 10. The third drive component 33 is used to drive the frame assembly 10 to rise or fall. While the frame assembly 10 is rising or falling, it can simultaneously drive the template assembly 20 to move synchronously until the first template 21, the second template 22 and the third template 23 complete the overall demolding operation with the tunnel inner wall.

[0043] Thus, the first driving component 31 drives the third template 23 to rotate, separating it from the formed corbel structure 60; the second driving component 32 drives the second template 22 to rotate, separating it from the tunnel sidewall; and the third driving component 33 drives the frame assembly 10 and moves the first template 21 vertically, separating it from the tunnel roof wall. This achieves complete demolding of the template assembly 20 from the tunnel. Throughout the demolding process, the template assembly 20 separates from the corbel structure 60 and the tunnel wall without secondary contact, completely avoiding the hard scraping of the template edges against the fragile corbel structure 60 and tunnel wall that occurs in traditional translational demolding methods. This fundamentally ensures the appearance quality and structural integrity of the cast-in-place structural components within the tunnel. Furthermore, both the first driving component 31 and the second driving component 32 employ a rotational demolding method, which significantly simplifies the demolding process, improves demolding efficiency, and shortens construction time compared to the traditional method of disassembling the corbel template and demolding them separately.

[0044] It should be noted that the first drive component 31, the second drive component 32, and the third drive component 33 can use hydraulic cylinders, electric cylinders, pneumatic cylinders, etc. as power sources.

[0045] In some embodiments, such as Figure 3 or Figure 4 As shown, the second template 22 has a mounting groove 221 on the side opposite to the frame assembly 10, and the third template 23 is movably disposed within the mounting groove 221. The mounting groove 221 provides a stable accommodating and movable space for the third template 23, and ensures that the relative positions of the third template 23 and the second template 22 are fixed during mold closing and casting, so that the two can together form the corbel template for forming the corbel structure 60. At the same time, it also provides the necessary movable space for the rotation of the third template 23 during demolding operations, preventing interference between the third template 23 and the second template 22.

[0046] In some embodiments, such as Figure 3 and Figure 4As shown, the third template 23 is an L-shaped structural component. The first end of the L-shaped third template 23 is hinged to the second template 22 via a hinge shaft. The hinge point at the first end of the third template 23 forms the fulcrum for the rotation of the third template 23, while the second end of the third template 23 is hinged to the movable end of the first driving member 31. When the first driving member 31 retracts, the force exerted by the first driving member 31 on the second end of the third template 23 will drive the third template 23 to rotate with its first end hinge point as the axis of rotation, toward the interior of the mounting groove 221 (in the direction of the frame assembly 10). Furthermore, because the third template 23 is L-shaped, no friction will occur between the working surface of the third template 23, which forms the bracket structure 60, and the bracket structure 60 during rotation, thereby further ensuring the integrity of the bracket structure 60.

[0047] Optionally, the third template 23 is not limited to being an L-shaped structural component. The working surface of the third template 23 can also be adjusted according to the outer contour shape of the bracket structure 60 to be formed. For example, the working surface of the third template 23 can be set to an arc or other shapes, as long as it is ensured that the third template 23 and the second template 22 can cooperate to form the required bracket contour, and that the third template 23 does not make secondary contact with the bracket structure 60 when rotating.

[0048] In some embodiments, such as Figure 3 or Figure 4 As shown, in order to precisely control the rotation stroke of the third template 23 and prevent it from rotating excessively due to inertia or misoperation, which could lead to collisions between the third template 23 and the second template 22 or other components, a limiting member 24 is provided at the second end of the third template 23. The limiting member 24 is also hinged to the first drive member 31. Simultaneously, the limiting member 24 can abut against the wall of the mounting groove 221, thereby limiting the rotation stroke of the third template 23.

[0049] Specifically, when the first driving member 31 drives the third template 23 to rotate to the preset limit position (the third template 23 is fully retracted into the mounting groove 221 or reaches the minimum angle required to avoid the bracket structure 60), the limiting member 24 is in contact with the groove wall of the mounting groove 221.

[0050] More specifically, when the third template 23 rotates to its limit position, fully retracted into the mounting slot 221 and in contact with the wall of the mounting slot 221, the third template 23 can no longer rotate towards the frame assembly 10. Conversely, when the third template 23 rotates to the minimum angle required to avoid the bracket structure 60 and is in contact with the wall of the mounting slot 221, the third template 23 can no longer rotate away from the frame assembly 10.

[0051] In some embodiments, such as Figure 1 or Figure 2As shown, the first template 21 and the second template 22 are connected by a hinge.

[0052] Specifically, the two sides of the first template 21 and the upper end of the second template 22 can be connected by hinges or hinge shafts. After the first template 21 and the second template 22 are connected, and when the second driving member 32 drives the second template 22 to approach or move away from the tunnel sidewall, due to the existence of the hinge point between the first template 21 and the second template 22, the movement trajectory of the second template 22 is closer to a rotation centered on the hinge point. Therefore, when the second template 22 rotates to close the mold, it better adapts to the tunnel contour, and during demolding, the rotational demolding method of the second template 22 can also avoid hard contact with the already formed tunnel inner wall, ensuring the integrity of the formed tunnel inner wall.

[0053] In some embodiments, such as Figure 1 or Figure 2 As shown, the frame assembly 10 includes a mast 11 and a bracket 12. The mast 11 is a three-dimensional truss structure welded from structural steel (such as I-beams and H-beams). This three-dimensional truss structure has high strength and rigidity to ensure that it can withstand the loads such as the lateral pressure generated on the inner wall of the tunnel during the concrete pouring.

[0054] The bracket 12 is located on top of the gantry 11, and can also be a steel truss. The bracket 12 is connected to the first template 21, specifically, the bracket 12 can be fixed to the first template 21 with bolts to provide support and fixation. During the pouring process, the bracket 12 supports the first template 21, ensuring it remains tightly fitted against the tunnel roof to prevent grout leakage and guarantee the lining thickness at the tunnel roof. Furthermore, the height of the bracket 12 can be finely adjusted using adjustable components such as screw rods to further adapt to different tunnel arch heights.

[0055] In some embodiments, such as Figure 1 As shown, in order to further enhance the support stiffness and stability of the second formwork 22 during concrete pouring and to prevent the second formwork 22 from deforming inward under the pressure of lateral concrete, the corbel lining trolley in this embodiment also includes a support component 40.

[0056] Specifically, the support assembly 40 is detachably connected to the frame assembly 10 and the second template 22. During the mold-forming and casting process, one end of the support assembly 40 is mounted on and secured to the frame assembly 10, and the other end of the support assembly 40 is mounted on the side of the second template 22 facing the frame assembly 10, so as to provide support for the second template 22 through the support assembly 40 and ensure that the second template 22 can fit tightly against the inner wall of the tunnel.

[0057] When performing demolding, the support component 40 and the second template 22 need to be separated first. After the support component 40 and the second template 22 are separated, the constraint on the second template 22 is released, so that the second template 22 can move in a direction away from or in contact with the tunnel wall under the drive of the second drive component 32.

[0058] In some embodiments, such as Figure 1 As shown, the support assembly 40 includes multiple support members 41. These multiple support members 41 are spaced apart along the height direction of the second formwork 22. By setting multiple support points at different heights, the lateral pressure of the concrete on the second formwork 22 can be effectively transferred to the gantry 11 in layers, avoiding local deformation of the formwork caused by concentrated support force. This ensures that the second formwork 22 receives uniform and reliable support along its entire height direction, thereby forming a flat and highly vertical tunnel sidewall. The number and spacing of the support members 41 can be calculated based on the formwork height and concrete pressure.

[0059] For example, there are 12 support members 41, with 6 on each side of the frame assembly 10. Among the 6 support members 41 on the same side, two support members 41 are arranged in a figure-eight shape at the bottom of the second template 22, two support members 41 are arranged in the lower area of ​​the bracket structure 60, and two support members 41 are arranged in the upper area of ​​the bracket structure 60. Only the uppermost support member 41 is connected to the bracket 12 at one end and to the second template 22 at the other end. The remaining support members 41 are connected to the mast 11 at one end and to the second template 22 at the other end. Thus, by setting up multiple support members 41, a comprehensive support function for the second template 22 can be formed.

[0060] It should be noted that the support member 41 may be, but is not limited to, a screw jack, a hydraulic jack, or a rod with a locking device. Furthermore, since multiple support members 41 act at different positions on the second template 22, and the required support force at different positions on the second template 22 also varies, the magnitude of the force exerted by the support members 41 at different positions on the second template 22 can be adaptively adjusted according to actual needs.

[0061] In some embodiments, such as Figure 1 As shown, in order to enable the lining trolley to move within the tunnel, the corbel lining trolley in this embodiment also includes a moving mechanism 50, which extends along the length of the tunnel.

[0062] Specifically, the moving mechanism 50 is located at the bottom of the frame assembly 10, specifically below the bottom beam of the gantry 11. The moving mechanism 50 is used to drive the frame assembly 10 to move along a predetermined path (a track laid on the bottom of the tunnel).

[0063] More specifically, the moving mechanism 50 can be a stepping walking mechanism driven by hydraulic cylinders, that is, the frame assembly 10 is moved on the track by the extension and retraction of the cylinders. This moving mechanism 50 has a large driving force and is suitable for heavy loads and steep slopes. Therefore, the presence of the moving mechanism 50 greatly improves the relocation efficiency of the lining trolley, thereby improving construction efficiency.

[0064] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., 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, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0065] It should be noted that if a component is described as "fixed to" or "set on" another component, it can be directly on the other component or there may be an intervening component. If a component is described as "connected to" another component, it can be directly connected to the other component or there may be an intervening component.

[0066] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A corbel lining trolley, characterized in that, include: Frame assembly (10); The template assembly (20) includes a first template (21), a second template (22) and a third template (23). The first template (21) is connected to the frame assembly (10), the second template (22) is connected to the first template (21), and the third template (23) is connected to the second template (22). The first template (21) is used to fit against the top of the tunnel, the second template (22) is used to fit against the side of the tunnel, and the third template (23) cooperates with the second template (22) to construct a cantilever template for forming a cantilever structure (60). The drive assembly (30) includes a first drive member (31) and a second drive member (32). The first drive member (31) is connected to the third template (23). The first drive member (31) is used to drive the third template (23) to rotate toward the frame assembly (10) to avoid the bracket structure (60). The second drive member (32) is connected to the frame assembly (10) and the second template (22). The second drive member (32) is used to drive the second template (22) to approach or move away from the tunnel wall.

2. The corbel lining trolley according to claim 1, characterized in that, The drive assembly (30) further includes a third drive member (33), which is connected to the frame assembly (10). The third drive member (33) is used to drive the frame assembly (10) to rise or fall, and drive the template assembly (20) to move synchronously via the frame assembly (10).

3. The corbel lining trolley according to claim 1, characterized in that, The second template (22) has a mounting groove (221) on the side opposite to the frame assembly (10), and the third template (23) is movably disposed in the mounting groove (221).

4. The corbel lining trolley according to claim 3, characterized in that, The third template (23) is an L-shaped structural component. The first end of the L-shaped third template (23) is hinged to the second template (22), and the second end of the third template (23) is hinged to the first driving component (31).

5. The corbel lining trolley according to claim 4, characterized in that, The second end of the third template (23) is provided with a limiting member (24), which is hinged to the first driving member (31) and can abut against the groove wall of the mounting groove (221) to limit the rotation stroke of the third template (23).

6. The corbel lining trolley according to claim 1, characterized in that, The first template (21) is hinged to the second template (22).

7. The corbel lining trolley according to claim 1, characterized in that, The frame assembly (10) includes a gantry (11) and a bracket (12). The bracket (12) is located on top of the gantry (11) and is connected to the first template (21) to support the first template (21) in contact with the tunnel roof.

8. The corbel lining trolley according to claim 1, characterized in that, The corbel lining trolley also includes a support assembly (40), which is detachably connected to the frame assembly (10) and the second template (22). The support assembly (40) is used to support the second template (22) to fit against the tunnel sidewall.

9. The corbel lining trolley according to claim 8, characterized in that, The support assembly (40) includes a plurality of support members (41), which are spaced apart along the height direction of the second template (22).

10. The corbel lining trolley according to claim 1, characterized in that, The corbel lining trolley also includes a moving mechanism (50), which is located at the bottom of the frame assembly (10) and is used to drive the frame assembly (10) to move along a set path.

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