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, the lateral wall of full circle formwork is provided with a plurality of working window groups, and working window group is along the interval distribution of full circle formwork's circumference direction, every working window group all includes a plurality of first window and a plurality of second window, and first window and second window are along the axial interval interlaced arrangement of full circle formwork, and the first window is provided with the cover that can open and shut, and second window is used for installing vibrator, and the first window of two working window groups of every side adjacent of full circle formwork is along the position of full circle formwork axial and mutually staggered, the utility model can overcome the full circle formwork trolley of existing full circle formwork trolley when pouring secondary lining, and staff is difficult to observe and manual intervention concrete pouring condition, leads to the shortage of the concrete pouring defect of easy emergence.

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 needle beams, full-circle formwork, columns, traveling mechanism and hoisting system. The cross-section of the full-circle formwork is 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 the construction efficiency.

[0003] However, due to the large volume of concrete poured at one time, the full-circle formwork trolley is prone to uneven concrete density distribution, local over-vibration or under-vibration, and insufficient air bubbles during the pouring of the secondary lining. Since the concrete is located between the outer side of the full-circle formwork and the primary lining, it is difficult for workers to observe the concrete pouring situation and to take remedial measures when problems occur. Therefore, there is an urgent need to develop a full-circle formwork trolley that can facilitate workers to observe and manually intervene in the concrete pouring situation. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of existing full-circle formwork trolleys, which make it difficult for workers to observe and manually intervene in the concrete pouring process during the pouring of secondary lining, thus easily leading to concrete pouring defects, and to provide a full-circle formwork trolley.

[0005] In a first aspect, the present invention provides a full-circular template trolley, comprising a full-circular template, wherein the sidewalls of the full-circular template are provided with a plurality of working window groups, the working window groups being distributed at intervals along the circumference of the full-circular template; each working window group includes a plurality of first windows and a plurality of second windows, the first windows and second windows being staggered at intervals along the axial direction of the full-circular template, the first windows being provided with an openable and closable cover plate, and the second windows being used for installing a vibrator; the first windows of two adjacent working window groups on each side of the full-circular template are staggered in position along the axial direction of the full-circular template.

[0006] Preferably, a window frame is provided around the first window, and the window frame is located inside the full-circle template; the cover plate is sway-connected to the full-circle template, and the cover plate can be inserted into or detached from the window frame by swaying relative to the full-circle template.

[0007] Preferably, a first limiting hole is provided on the window frame, the axis of the first limiting hole is perpendicular to the radial direction of the full-circle template, and a limiting pin is detachably connected in the first limiting hole; a second limiting hole is correspondingly provided on the cover plate, and the cover plate can swing relative to the full-circle template to align the first limiting hole and the second limiting hole, so that the limiting pin can be inserted into the second limiting hole.

[0008] Preferably, at least one of the first limiting hole and the second limiting hole is threadedly connected to the limiting pin.

[0009] Preferably, there are at least two first limiting holes, which are distributed at intervals along the circumference of the window frame; the number and position of the second limiting holes match the number and position of the first limiting holes.

[0010] Preferably, the bottom of the full-circle template is also provided with an observation window group, which includes several third windows spaced apart along the axial direction of the full-circle template, and the area of ​​the third windows is smaller than that of the first windows.

[0011] Preferably, a sealing ring is provided around the first window, which can seal the gap between the cover plate and the first window.

[0012] Preferably, a stiffening rib is provided on the side of the cover plate near the center of the full-circle template.

[0013] Preferably, a handle is attached to the side of the cover plate near the center of the full-circle template.

[0014] Preferably, the area of ​​the first window is larger than that of the second window.

[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. It features a group of working windows, including a first window and a second window, on the side wall of the full-circular formwork. The second window can be equipped with a vibrator, allowing for automatic vibration of the concrete from different positions within the full-circular formwork after the secondary lining concrete is poured. The first window has an openable cover. When pouring the secondary lining concrete, closing the cover prevents concrete from entering the inner side of the full-circular formwork through the first window. When it is necessary to check the construction quality of the concrete, such as its hardening and vibration status, opening the cover allows workers to directly observe the concrete in the corresponding area through the first window. Sampling or manual vibration can be performed as needed, thus ensuring the construction quality of the secondary lining. Attached Figure Description

[0016] Figure 1 This is a planar unfolded schematic diagram of the full-circle template of a full-circle template trolley according to the present invention; Figure 2 This is a schematic diagram of the cross-sectional structure of the full-circle template of a full-circle template trolley according to this utility model; Figure 3 This is a schematic diagram of a partial three-dimensional structure of a full-circle template trolley at the first window of this utility model. Figure 1 ; Figure 4 This is a schematic diagram of a partial three-dimensional structure of a full-circle template trolley at the first window of this utility model. Figure 2 ; icon: 1-Full circular formwork; 11-Top formwork; 12-Left side formwork; 13-Left bottom formwork; 14-Right side formwork; 15-Right bottom formwork; 16-Small bottom formwork; 17-Grouting hole; 18-Pouring port; 2-Work window group; 21-First window; 22-Second window; 211-Window frame; 212-Cover plate; 213-First limiting hole; 214-Second limiting hole; 215-Limiting pin; 216-Reinforcing rib; 217-Sealing ring; 218-Handle; 3-Observation window group; 31-Third window. 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 4 As shown, a full-circular template trolley includes a full-circular template 1. The sidewalls of the full-circular template 1 are provided with a plurality of working window groups 2, which are distributed at intervals along the circumference of the full-circular template 1. Each working window group 2 includes a plurality of first windows 21 and a plurality of second windows 22. The first windows 21 and the second windows 22 penetrate the sidewalls of the full-circular template 1. The first windows 21 and the second windows 22 are staggered along the axial direction of the full-circular template 1. The first windows 21 are provided with an openable cover plate 212, and the second windows 22 are used to install vibrators. The first windows 21 of two adjacent working window groups 2 on each side of the full-circular template 1 are staggered along the axial direction of the full-circular template 1. Correspondingly, the second windows 22 of two adjacent working window groups 2 on each side of the full-circular template 1 are also staggered along the axial direction of the full-circular template 1.

[0024] In this embodiment, the full-circle formwork trolley is equipped with several working window groups 2, including a first window 21 and a second window 22, on the side wall of the full-circle formwork 1. The second window 22 can be equipped with a vibrator, so that after the secondary lining concrete is poured, the concrete can be automatically vibrated from different positions of the full-circle formwork 1. The first window 21 has an openable and closable cover plate 212. When pouring the secondary lining concrete, closing the cover plate 212 can prevent the concrete from entering the inside of the full-circle formwork 1 from the first window 21. When it is necessary to check the construction quality of the concrete, such as the hardening and vibration conditions, the cover plate 212 can be opened, and the workers can directly see the concrete in the corresponding area through the first window 21. When necessary, the concrete can be sampled or manually vibrated, thereby ensuring the construction quality of the secondary lining.

[0025] This embodiment also staggers the first windows 21 of two adjacent working window groups 2 along the axial direction of the full-circle template 1. On the one hand, this allows the first windows 21 to cover more different cross-sectional positions, enabling workers to inspect the secondary lining concrete more comprehensively. On the other hand, it also reduces the overlap area of ​​the vibration range of the two adjacent first windows 21 and increases the total effective vibration coverage when manual vibration is required. At the same time, it can also produce cross vibration and air release effects, thereby more effectively reducing the missed vibration area, preventing local over-vibration or under-vibration of the concrete, ensuring that air bubbles inside the concrete are fully discharged, making the density of each area of ​​the concrete consistent, and reducing defects such as honeycomb and pitting.

[0026] Since the first window 21 of two adjacent working window groups 2 is offset along the axial direction of the full circular template 1, the second window 22 of two adjacent working window groups 2 will also be offset along the axial direction of the full circular template 1 accordingly. Thus, like the first window 21, it can also achieve the beneficial effects of increasing the effective vibration coverage, strengthening the vibration effect, and facilitating the removal of air bubbles from the concrete.

[0027] It should be noted that "each side" of the full-circle template 1 refers to the left and right sides of the full-circle template 1, for example... Figure 1 As shown, the first windows 21 of the two adjacent working window groups 2 on the left side of the full circular template 1 are offset from each other along the axis of the full circular template 1, and the first windows 21 of the two adjacent working window groups 2 on the right side of the full circular template 1 are also offset from each other along the axis of the full circular template 1. However, the layout of the left and right working windows can be mirror-symmetrical about the central axis of the full circular template 1, rather than necessarily being offset from each other.

[0028] In an optional implementation, the opening and closing method of the cover plate 212 can refer to existing door and window opening and closing methods, including but not limited to push-pull opening and closing or swing opening and closing.

[0029] In an optional embodiment, a window frame 211 is provided around the first window 21, the window frame 211 is located inside the full-circle template 1 and extends towards the center of the full-circle template 1; the cover plate 212 is sway-connected to the full-circle template 1, and the cover plate 212 can sway relative to the full-circle template 1 as follows: Figure 4 The embedded window frame 211 shown, or as... Figure 3 As shown, it is detached from the window frame 211.

[0030] This embodiment can increase the contact area between the cover plate 212 and the full-circle template 1, which is beneficial to improving the connection stability between the cover plate 212 and the full-circle template 1, thereby preventing the cover plate 212 from opening accidentally under the heavy pressure of concrete; it is also beneficial to increase the sealing path length between the cover plate 212 and the first window 21, thereby improving the sealing performance between the cover plate 212 and the first window 21; at the same time, the window frame 211 can also enhance the strength and rigidity of the full-circle template 1 near the first window 21, avoiding the situation where the strength and rigidity of the full-circle template 1 are weakened due to the first window 21.

[0031] In an optional embodiment, a first limiting hole 213 is provided on the window frame 211, the axis of the first limiting hole 213 being perpendicular to the radial direction of the full-circle template 1, for example, as shown in the figure. Figure 4 The template is set along the axis of the full-circle template 1, or it can be set along the tangent of the full-circle template 1; a limiting pin 215 is detachably connected in the first limiting hole 213; a second limiting hole 214 is correspondingly provided on the cover plate 212. The cover plate 212 swings relative to the full-circle template 1 so that the first limiting hole 213 and the second limiting hole 214 are aligned, so that the limiting pin 215 can be inserted into the second limiting hole 214, thereby locking the cover plate 212 in the window frame 211.

[0032] This embodiment can lock the cover plate 212 in place by means of the limiting pin 215. Figure 4 The closed state shown prevents the cover plate 212 from accidentally opening under the heavy pressure of concrete. At the same time, since the axial direction of the first limiting hole 213, that is, the insertion and extraction direction of the limiting pin 215, is perpendicular to the radial direction of the full-circle template 1, when the cover plate 212 is subjected to pressure inward along the radial direction of the full-circle template 1, the limiting pin 215 will not only not loosen, but will also be pressed against the side walls of the first limiting hole 213 and the second limiting hole 214, thereby producing a stronger locking effect.

[0033] In an optional embodiment, at least one of the first limiting hole 213 and the second limiting hole 214 is threadedly connected to the limiting pin 215; for example, an internal thread can be machined in the first limiting hole 213, and an external thread can be machined on the outer wall of the limiting pin 215. The limiting pin 215 is inserted into the first limiting hole 213, and rotating the limiting pin 215 can move the limiting pin 215 along the first limiting hole 213, thereby inserting into or leaving the second limiting hole 214.

[0034] This embodiment can further improve the connection reliability between the limiting pin 215 and the window frame 211 or the cover plate 212, and avoid the situation where the limiting pin 215 is accidentally loosened, causing the cover plate 212 to open unexpectedly.

[0035] In an optional embodiment, the number of first limiting holes 213 is at least two, and the first limiting holes 213 are distributed at intervals along the circumference of the window frame 211; the number and position of the second limiting holes 214 match the number and position of the first limiting holes 213.

[0036] This embodiment can further improve the locking effect of the limit pin 215 on the cover plate 212 and provide more redundancy.

[0037] In an optional embodiment, a perforated ear plate is provided on the inner side of the full-circle template 1. The hole axis of the perforated ear plate is parallel to the first limiting hole 213. The end of the limiting pin 215 away from the second limiting hole 214 is inserted into the perforated ear plate, thereby improving the stability of the limiting pin 215.

[0038] In an optional embodiment, the bottom of the full-circle template 1 is also provided with an observation window group 3, which includes a plurality of third windows 31 spaced apart along the axial direction of the full-circle template 1, and the area of ​​the third window 31 is smaller than that of the first window 21.

[0039] This embodiment further increases the ways for staff to observe the concrete pouring effect, and the third window 31 can also be used for manual vibration when needed.

[0040] In an optional embodiment, a sealing ring 217 is provided around the first window 21, which can seal the gap between the cover plate 212 and the first window 21. The sealing ring 217 can be an existing product, including but not limited to a rubber sealing ring 217, a metal sealing ring 217 or a composite material sealing ring 217.

[0041] This embodiment can improve the sealing between the first window 21 and the cover plate 212.

[0042] In an optional embodiment, a stiffening rib 216 is provided on the side of the cover plate 212 near the center of the full-circle template 1.

[0043] This embodiment can improve the strength of the cover plate 212 and prevent the cover plate 212 from deforming under the heavy pressure of concrete, which would lead to the failure of the seal between the cover plate 212 and the first window 21.

[0044] In an optional embodiment, a handle 218 is connected to the side of the cover plate 212 near the center of the full-circle template 1.

[0045] This embodiment allows staff to easily open the cover plate 212.

[0046] In optional implementations, such as Figure 3 As shown, the handle 218 is connected to the side of the cover plate 212 away from its swing axis, thereby increasing the lever arm of the handle 218 to the swing axis, allowing the operator to open the cover plate 212 with less effort.

[0047] In an optional implementation, the area of ​​the first window 21 is larger than that of the second window 22.

[0048] This embodiment makes the first window 21 and the second window 22 different sizes. The larger first window 21 allows workers to more easily observe and manually operate the concrete, while the smaller second window 22 avoids the situation where the total area of ​​the working window group 2 is too large, which would lead to an excessive weakening of the strength and sealing of the full circular formwork 1.

[0049] In optional implementations, such as Figure 1 As shown, the full-circle template 1 includes a top mold 11, a left mold 12, a left bottom mold 13, a right mold 14, a right bottom mold 15, and a small bottom mold 16. The top mold 11, the left mold 12, and the right mold 14 are each provided with two rows of working window groups 2, and the two rows of working window groups 2 on the top mold 11 are located on both sides of the grouting hole 17 and the pouring opening 18, respectively. The left bottom mold 13 and the right bottom mold 15 are each provided with one row of working window groups 2, and the small bottom mold 16 is provided with one row of observation window groups 3.

[0050] 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 (1), characterized in that: The sidewall of the full-circle template (1) is provided with a number of working window groups (2), and the working window groups (2) are distributed at intervals along the circumference of the full-circle template (1). Each of the working window groups (2) includes several first windows (21) and several second windows (22). The first windows (21) and the second windows (22) are staggered along the axial direction of the full-circle template (1). The first windows (21) are provided with openable and closable cover plates (212), and the second windows (22) are used to install vibrators. The first windows (21) of two adjacent working window groups (2) on each side of the full-circle template (1) are staggered along the axial direction of the full-circle template (1).

2. The full-circle template trolley according to claim 1, characterized in that, A window frame (211) is provided around the first window (21), and the window frame (211) is located inside the full-circle template (1); the cover plate (212) is sway-connected to the full-circle template (1), and the cover plate (212) can be inserted into or removed from the window frame (211) by swaying relative to the full-circle template (1).

3. A full-circle template trolley according to claim 2, characterized in that, The window frame (211) is provided with a first limiting hole (213), the axis of the first limiting hole (213) is perpendicular to the radial direction of the full-circle template (1), and a limiting pin (215) is detachably connected in the first limiting hole (213); the cover plate (212) is provided with a corresponding second limiting hole (214), and the cover plate (212) can swing relative to the full-circle template (1) to align the first limiting hole (213) and the second limiting hole (214), so that the limiting pin (215) can be inserted into the second limiting hole (214).

4. A full-circle template trolley according to claim 3, characterized in that, At least one of the first limiting hole (213) and the second limiting hole (214) is threadedly connected to the limiting pin (215).

5. A full-circle template trolley according to claim 3, characterized in that, The number of the first limiting holes (213) is at least two, and the first limiting holes (213) are distributed at intervals along the circumference of the window frame (211); the number and position of the second limiting holes (214) match the number and position of the first limiting holes (213).

6. A full-circular template trolley according to any one of claims 1 to 5, characterized in that, The bottom of the full-circle template (1) is also provided with an observation window group (3), which includes a number of third windows (31) spaced apart along the axial direction of the full-circle template (1), and the area of ​​the third window (31) is smaller than that of the first window (21).

7. A full-circle template trolley according to any one of claims 1 to 5, characterized in that, A sealing ring (217) is provided around the first window (21), and the sealing ring (217) can seal the gap between the cover plate (212) and the first window (21).

8. A full-circular template trolley according to any one of claims 1 to 5, characterized in that, The cover plate (212) is provided with a stiffening rib (216) on the side near the center of the full-circle template (1).

9. A full-circular template trolley according to any one of claims 1 to 5, characterized in that, A handle (218) is connected to the side of the cover plate (212) near the center of the full-circle template (1).

10. A full-circle template trolley according to any one of claims 1 to 5, characterized in that, The area of ​​the first window (21) is larger than that of the second window (22).

Images