A full-circle formwork trolley

Abstract

The utility model relates to tunnel construction equipment technical field, concretely relates to a full circle formwork trolley, including full circle formwork, full circle formwork includes top mould, still includes: the avoidance through groove, the avoidance through groove sets up in top mould, the length and width of avoidance through groove are all greater than the length and width of water stop frame, and the detachable connection of filling formwork has in avoidance through groove, lifting system, lifting system connects in the inside of top mould, and lifting system can drive top mould to drop along the height direction and drop to the below of water stop frame under the condition of descending, compensation formwork, compensation formwork can detachably connect between the side wall of avoidance through groove and water stop frame, the utility model can overcome the technical problem that the full circle formwork trolley of present art can interfere with each other with the water stop frame in nuclear power drainage tunnel, leads to the technical problem that secondary lining construction is difficult to carry out.

Description

Technical Field

[0001] This utility model relates to the field of tunnel construction equipment technology, and in particular to a full-circle template trolley. Background Technology

[0002] The full-circle formwork trolley (also known as the full-ring formwork trolley) is a tunnel construction equipment used for pouring the secondary lining of tunnels. Taking the full-circle needle beam formwork trolley as an example, it generally includes a central needle beam, a full-circle formwork fitted on the needle beam, columns, a traveling mechanism, and a hoisting system. The cross-section of the full-circle formwork presents a complete circle after unfolding, so it can complete the pouring of the secondary lining in the corresponding area of ​​the tunnel in one go, thereby greatly improving construction efficiency.

[0003] However, during the construction of a drainage tunnel in a nuclear power project, a water-stop frame protruding into the tunnel is installed at intervals at the top of the tunnel end. The top formwork of the full-circle template interferes with the water-stop frame, which prevents the full-circle template from moving along the tunnel length and from being lifted into place. This makes it difficult to carry out the secondary lining construction of the drainage tunnel. Therefore, it is urgent to propose a full-circle template trolley that can be used for the construction of nuclear power drainage tunnels. Utility Model Content

[0004] The purpose of this invention is to overcome the technical problem that existing full-circle formwork trolleys interfere with the water-stop frame in nuclear power plant drainage tunnels, making secondary lining construction difficult, and to provide a full-circle formwork trolley.

[0005] In a first aspect, this utility model provides a full-circle template trolley, including a full-circle template, the full-circle template including a top mold, and further comprising: The clearance channel is set in the top mold. The length and width of the clearance channel are both greater than the length and width of the waterstop frame. A filling template is detachably connected in the clearance channel. The lifting system is connected to the inside of the top mold. When the lifting system descends, it can drive the top mold to descend along the height direction to below the waterstop frame. The compensation template can be detachably connected between the side wall of the clearance channel and the waterstop frame.

[0006] Preferably, the top formwork is divided into several sub-formworks along the tunnel length direction, and the sub-formworks can be detachably connected; removing the sub-formworks within the waterstop frame area can form an avoidance channel.

[0007] Preferably, the length of a single sub-template is less than the length of the waterstop frame.

[0008] Preferably, the width of a single sub-template is greater than the width of the waterstop frame.

[0009] Preferably, the lifting system includes a hydraulic cylinder, one end of which is connected to the needle beam, and the other end of which is connected to the inner side of the top mold.

[0010] Preferably, the number of hydraulic cylinders is at least four, and the hydraulic cylinders are distributed at intervals along the width and length of the tunnel.

[0011] Preferably, the compensation template is filled between the side wall of the clearance channel and the waterstop frame.

[0012] Preferably, the compensation template is bolted to the side wall of the clearance channel.

[0013] Preferably, the surface of the compensation template is coated with a release agent.

[0014] Preferably, the space between the compensation template and the waterstop frame is filled with at least one of mud, mortar, sealant, and rubber strip.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model provides a full-circular formwork trolley. By opening an avoidance groove on the top formwork and detachably connecting the filling formwork in the avoidance groove, when constructing a tunnel area with a waterstop frame, the top formwork is lowered to a position where the top surface is lower than the bottom surface of the waterstop frame through a lifting system. This avoids interference between the top formwork and the waterstop frame, allowing the full-circular formwork to move freely along the tunnel length and aligning the avoidance groove with the waterstop frame. After removing the filling formwork and then raising the top formwork again, the waterstop frame will pass through the avoidance groove during the raising of the top formwork, thus avoiding interference with the top formwork. This allows the top formwork to reach the predetermined height smoothly. After filling the gap between the side wall of the avoidance groove and the waterstop frame with a compensation formwork, the subsequent secondary lining pouring operation can be carried out. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the cross-sectional structure of a full-circle template trolley according to the present invention; Figure 2 This is a partial side view of a full-circle template trolley according to the present invention; Figure 3 This is a partial top view of the structure of a full-circle template trolley according to this utility model. Figure 1 ; Figure 4 This is a partial top view of the structure of a full-circle template trolley according to this utility model. Figure 2 ; Figure 5 yes Figure 2 Schematic diagram of the cross-sectional structure of section AA; Figure 6 yes Figure 2 Schematic diagram of the cross-sectional structure of section BB in the middle; icon: 1-Top mold; 10-Allowing slot; 11-Sub-template; 12-Compensation template; 2-Side mold; 3-Hydraulic cylinder; 4-Waterstop frame; 5-Secondary lining. Detailed Implementation

[0017] The present invention will be further described in detail below with reference to specific embodiments. However, it should not be construed as limiting the scope of the present invention to the following embodiments; all technologies implemented based on the content of the present invention fall within the scope of the present invention.

[0018] Unless otherwise specified, the use of terms such as "upper," "lower," "left," "right," "center," "inner," and "outer" to indicate orientation or positional relationships in the description of specific embodiments of this utility model is based on the orientation or positional relationships shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product / equipment / device is typically placed during use. These terms are merely for the purpose of facilitating the description of the utility model solution or simplifying the description in specific embodiments, enabling those skilled in the art to quickly understand the solution, and do not indicate or imply that a specific device / component / element must have a specific orientation, or be constructed and operated in a specific positional relationship. Therefore, they should not be construed as limitations on this utility model.

[0019] Furthermore, the use of terms such as "horizontal," "vertical," "suspended," and "parallel" does not imply that the corresponding device / component / element must be absolutely horizontal, vertical, suspended, or parallel, but rather that it can be slightly tilted or have a deviation. For example, "horizontal" merely means that its direction is more horizontal relative to "vertical," not that the structure must be completely horizontal, but can be slightly tilted. Alternatively, it can be simplified to mean that the corresponding device / component / element, when set in a "horizontal," "vertical," "suspended," or "parallel" direction, can have an error / deviation of ±10% relative to the corresponding direction, more preferably within ±8%, more preferably within ±6%, more preferably within ±5%, and more preferably within ±4%. As long as the corresponding device / component / element is within the error / deviation range, it can still achieve its function in the present invention.

[0020] Furthermore, the use of terms such as "first," "second," and "third" in terminology is merely for distinguishing descriptions of identical or similar components and should not be interpreted as emphasizing or implying the relative importance of a particular component.

[0021] Furthermore, in the description of the embodiments of this utility model, "several", "multiple", and "several" represent at least two. The number can be any number, such as two, three, four, five, six, seven, eight, or nine, and can even exceed nine.

[0022] Furthermore, in the description of the technical solution of this utility model, unless otherwise explicitly specified / limited / restricted, the terms "set up," "install," "connect," "link," "equipped with," "laid out," and "arranged" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to common connection methods in the art, such as welding, riveting, bolting, and threaded connections. Such connections can be mechanical, electrical, or communication connections; they can be direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components.

[0023] Example 1 like Figures 1 to 6 As shown, a full-circular template trolley includes a full-circular template, which includes a top template 1, a side template 2, and a bottom template; it also includes an avoidance channel 10, a lifting system, and a compensation template 12.

[0024] The clearance channel 10 is set in the top mold 1. The length and width of the clearance channel 10 are both greater than the length and width of the waterstop frame 4. A filling template is detachably connected in the clearance channel 10.

[0025] The lifting system is connected to the inner side of the top formwork 1 (i.e. the side of the top formwork 1 closest to the central axis of the tunnel). When the lifting system descends, it can drive the top formwork 1 to descend along the height direction to below the waterstop frame 4; when the lifting system rises, it can drive the top formwork 1 to rise along the height direction to a predetermined height, i.e. the height of the inner bottom surface of the secondary lining 5.

[0026] The compensation template 12 can be detachably connected between the side wall of the clearance channel 10 and the waterstop frame 4.

[0027] In this embodiment, the full-circular template trolley has an avoidance groove 10 on the top formwork 1, and the filling template is detachably connected in the avoidance groove 10. When used for construction of tunnel areas with water-stop frames 4, the top formwork 1 is lowered to a position where the top surface is lower than the bottom surface of the water-stop frame 4 by the lifting system, which avoids interference between the top formwork 1 and the water-stop frame 4, allowing the full-circular template to move freely along the tunnel length direction and aligning the avoidance groove 10 with the water-stop frame 4. After the filling template is removed and the top formwork 1 is raised again, the water-stop frame 4 will pass through the avoidance groove 10 during the rise of the top formwork 1, thus avoiding interference with the top formwork 1, allowing the top formwork 1 to reach the predetermined height smoothly. After the gap between the side wall of the avoidance groove 10 and the water-stop frame 4 is filled by the compensation template 12, the subsequent secondary lining 5 pouring operation can be carried out.

[0028] When used in tunnel areas without the waterstop frame 4, the integrity of the full-circle formwork section can be restored by reinstalling the filling formwork in the avoidance channel 10. This prevents concrete from flowing into the tunnel from the avoidance channel 10 and causing construction safety and quality accidents when pouring the secondary lining 5, thus ensuring that the full-circle formwork can be constructed normally in tunnel areas without the waterstop frame 4.

[0029] In this embodiment, the length and width of the clearance groove 10 are both greater than the length and width of the waterstop frame 4. On the one hand, this allows the waterstop frame 4 to pass smoothly through the clearance groove 10 even when the clearance groove 10 is not fully aligned with the waterstop frame 4, or when the top mold 1 sways during lifting. This helps to reduce the requirements of the positional accuracy of the top mold 1 and the control accuracy of the lifting system in this embodiment, and improves the construction efficiency of this embodiment. On the other hand, when the size of the waterstop frame 4 changes, as long as the size of the waterstop frame 4 does not exceed the size of the clearance groove 10, this embodiment only needs to replace the compensation template 12 with a different size to adapt to different waterstop frames 4, without replacing the entire top mold 1, thereby improving the versatility of this embodiment.

[0030] exist Figures 1 to 6 Arrows are also used to mark the various directions in this embodiment. The X-axis represents the length direction of the tunnel, that is, the length direction of the avoidance channel 10, the water stop frame 4, the top formwork 1 and the sub-formwork 11; the Y-axis represents the width direction of the tunnel, that is, the width direction of the avoidance channel 10, the water stop frame 4 and the sub-formwork 11; and the Z-axis represents the height direction.

[0031] In an optional embodiment, the clearance groove 10 is rectangular in shape, so that it can be adapted to the mainstream rectangular waterstop frame 4. It should be noted that when the waterstop frame 4 is of other shapes, the clearance groove 10 can also be changed to other shapes accordingly.

[0032] In an optional embodiment, the detachable connection between the clearance groove 10 and the filling template can adopt existing structures, including but not limited to bolted connections, snap-fit ​​connections, or tenon and mortise connections; for example, a through hole is opened on the side wall of the clearance groove 10, and a corresponding threaded hole is opened on the side wall of the filling template. When the filling template is located in the clearance groove 10, a bolt can be inserted through the through hole of the clearance groove 10 into the threaded hole of the filling template to achieve the connection between the clearance groove 10 and the filling template.

[0033] In an optional embodiment, the top formwork 1 is divided into several sub-formworks 11 along the tunnel length direction, and the sub-formworks 11 are detachably connected; in this case, the sub-formworks 11 within the waterstop frame 4 area are the filling formwork, such as... Figure 4 As shown, removing the sub-formwork 11 within the range of the waterstop frame 4 can form an avoidance groove 10 between the side formworks 2 on both sides, thereby enabling... Figure 5As shown, the waterstop frame 4 passes between the side molds 2 on both sides to avoid interference between the waterstop frame 4 and the top mold 1 and the side molds 2; while the remaining cross-sections are as follows Figure 6 As shown, the sub-template 11 is still present, so that the sub-template 11, side mold 2, and bottom mold can still be assembled together to form a full-circle template.

[0034] In an optional embodiment, the length of a single sub-formwork 11 is less than the length of the waterstop frame 4, thereby allowing for the creation of clearance channels 10 of varying lengths by controlling the number of sub-formwork 11 removed, to accommodate waterstop frames 4 of different lengths. For example... Figure 3 As shown in the figure, the length of a single sub-template 11 is only slightly greater than half the length of the waterstop frame 4. Therefore, two sub-templates 11 can be removed to form a clearance channel 10 through which the waterstop frame 4 can pass. If the length of the waterstop frame 4 increases, the number of sub-templates 11 removed can be increased accordingly.

[0035] In an optional embodiment, the width of a single sub-template 11 is greater than the width of the waterstop frame 4, which can prevent the top mold 1 from being divided too finely along its width direction, resulting in excessive structural complexity and reduced structural strength.

[0036] In an optional implementation, two adjacent sub-templates 11 are bolted together. For example, through holes are made on the adjacent sidewalls of the two sub-templates 11. When the through holes of the adjacent sub-templates 11 are aligned, bolts can be inserted into the through holes to achieve the connection between the two adjacent sub-templates 11.

[0037] This embodiment can ensure reliable connection between adjacent sub-templates 11 through the self-locking characteristic of the threaded connection.

[0038] In an optional implementation, the lifting system may employ an existing structure, including but not limited to screw lifting systems, rack and pinion lifting systems, winch lifting systems, or hydraulic lifting systems.

[0039] In an optional embodiment, the lifting system includes a hydraulic cylinder 3, one end of which is connected to the needle beam, and the other end of which is connected to the inner side of the top mold 1.

[0040] This embodiment recommends using a hydraulic cylinder 3 with high load-bearing capacity for the lifting system, which can ensure the smooth lifting and lowering of the top mold 1.

[0041] In an optional embodiment, the number of hydraulic cylinders 3 is at least four, and the hydraulic cylinders 3 are distributed at intervals along the width and length directions of the tunnel.

[0042] In this embodiment, multiple hydraulic cylinders 3 are used to lift the top mold 1 from various parts of the top mold 1 in a coordinated manner. On the one hand, this can reduce the load on a single hydraulic cylinder 3, thereby improving the construction safety of this embodiment. On the other hand, it is also beneficial to maintain the constant posture of the top mold 1 through the coordinated control of multiple hydraulic cylinders 3, so that the waterstop frame 4 can pass smoothly through the avoidance channel 10 during the lifting of the top mold 1, thereby ensuring that the subsequent secondary lining 5 construction can be carried out smoothly and efficiently.

[0043] In optional embodiments, the specific structural form of the compensation template 12 includes, but is not limited to, strip-shaped members, wedge-shaped members, or frame-shaped members; for example... Figure 3 As shown, the compensation template 12 is a square frame component with a giant cross section, which can fill the rectangular annular gap between the avoidance channel 10 and the waterstop frame 4.

[0044] In an optional embodiment, the compensation template 12 is filled between the side wall of the clearance channel 10 and the waterstop frame 4, that is, the fit between the compensation template 12 and the side wall of the clearance channel 10 and the side wall of the waterstop frame 4 is a transition fit or an interference fit.

[0045] This embodiment can fully guarantee the sealing between the bypass groove 10 and the water-stop frame 4, and can also eliminate the need for connecting structures such as bolts or clips, thereby helping to reduce the implementation cost and operational complexity of this embodiment.

[0046] In an optional embodiment, the compensation template 12 is bolted to the side wall of the clearance groove 10; for example, a threaded hole is opened on the side wall of the clearance groove 10, and a corresponding through hole is opened on the side wall of the compensation template 12. When the compensation template 12 is located inside the clearance groove 10, a bolt can be inserted through the through hole of the compensation template 12 into the threaded hole of the clearance groove 10 to achieve the connection between the compensation template 12 and the clearance groove 10.

[0047] This embodiment can ensure the connection stability between the compensation template 12 and the clearance channel 10, and avoid the situation where the compensation template 12 is accidentally detached under the pressure generated by the concrete, resulting in concrete leaking into the tunnel.

[0048] In an optional embodiment, the surface of the compensation template 12 is coated with a release agent, which makes it easy for workers to remove the compensation template 12 after the secondary lining 5 is poured.

[0049] In an optional embodiment, the space between the compensation template 12 and the waterstop frame 4 is further filled with at least one of mud, mortar, sealant, and rubber strip.

[0050] This embodiment can further improve the sealing performance between the clearance groove 10 and the waterstop frame 4.

[0051] The above content is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A full-circle template trolley, comprising a full-circle template, wherein the full-circle template includes a top mold (1), characterized in that, Also includes: The clearance channel (10) is provided on the top mold (1). The length and width of the clearance channel (10) are both greater than the length and width of the waterstop frame (4). A filling template is detachably connected in the clearance channel (10). A lifting system is connected to the inner side of the top mold (1). When the lifting system descends, it can drive the top mold (1) to descend along the height direction to below the waterstop frame (4). The compensation template (12) can be detachably connected between the side wall of the avoidance channel (10) and the waterstop frame (4).

2. The full-circle template trolley according to claim 1, characterized in that, The top formwork (1) is divided into several sub-formworks (11) along the tunnel length direction, and each sub-formwork (11) is detachably connected; removing the sub-formworks (11) within the range of the waterstop frame (4) can form the avoidance channel (10).

3. A full-circle template trolley according to claim 2, characterized in that, The length of a single sub-template (11) is less than the length of the waterstop frame (4).

4. A full-circle template trolley according to claim 3, characterized in that, The width of a single sub-template (11) is greater than the width of the waterstop frame (4).

5. A full-circle template trolley according to any one of claims 1 to 4, characterized in that, The lifting system includes a hydraulic cylinder (3), one end of which is connected to the needle beam, and the other end of which is connected to the inner side of the top mold (1).

6. A full-circle template trolley according to claim 5, characterized in that, The number of hydraulic cylinders (3) is at least four, and the hydraulic cylinders (3) are distributed at intervals along the width and length of the tunnel.

7. A full-circle template trolley according to any one of claims 1 to 4, characterized in that, The compensation template (12) is filled between the side wall of the avoidance channel (10) and the waterstop frame (4).

8. A full-circle template trolley according to any one of claims 1 to 4, characterized in that, The compensation template (12) is bolted to the side wall of the clearance groove (10).

9. A full-circle template trolley according to any one of claims 1 to 4, characterized in that, The surface of the compensation template (12) is coated with a release agent.

10. A full-circular template trolley according to any one of claims 1 to 4, characterized in that, The space between the compensation template (12) and the waterstop frame (4) is further filled with at least one of mud, mortar, sealant and rubber strip.

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