Shield tunnel inverted arch filling groove moving template

Abstract

The utility model relates to tunnel construction technology field, concretely is a kind of shield tunnel inverted arch filling groove moving template: including movable support, the surface of movable support is fixedly connected with fixed frame, the bottom of movable support is fixedly connected with filling groove model, the surface of fixed frame is rotatably connected with first bidirectional screw rod. The utility model drives first bidirectional screw rod to rotate by rotating first knob, makes two groups of first square nut slide, is slid on movable support by first connecting rod and drives first guide rod, lets two groups of first walking wheel move in the both sides of already formed groove concrete platform, rotates second knob, its output shaft drives second bidirectional screw rod to rotate, makes two groups of second square nut move, is slid on movable support surface by second connecting rod and drives second guide rod, lets two groups of extrusion plate extrude in the both sides of already formed groove concrete platform, need not operate in the both sides of movable support, greatly improve tunnel inverted arch filling groove construction efficiency.

Description

Technical Field

[0001] This utility model relates to the field of tunnel construction technology, specifically a movable template for filling the invert arch trench of a shield tunnel. Background Technology

[0002] The invert filling trench in the design of railway ballastless tunnels is located at the junction of the top of the invert filling and the side wall of the already formed trench concrete platform. The function of the invert filling trench in railway ballastless tunnels is drainage. Currently, the invert filling trench in railway ballastless tunnels is designed and cast simultaneously with the invert filling.

[0003] Chinese utility model patent application number CN201620310239.3 describes a mobile mold for filling trenches in tunnel inverts. After the mold is moved to a designated position by a walking device, a lifting device is adjusted to move the filling trench model up and down, ensuring the placement accuracy of the filling trench model. Then, a fixing device is used to secure the entire mold to the pre-formed concrete platform, and concrete is poured into the filling section. This allows for rapid completion of tunnel invert filling trench construction, resulting in high-quality invert filling trenches without damaging existing concrete structures. The structure is simple in design and easy to operate, facilitating promotion and saving construction costs and time. However, the walking and fixing devices are operated via adjusting screws. Because the walking and fixing devices are symmetrically located on both sides of the support, operators need to operate the adjusting screws on both sides of the walking and fixing devices separately. Furthermore, one side of the adjusting screw is located on the pre-formed trench on the pre-formed concrete platform, making operation inconvenient and time-consuming, significantly reducing the construction efficiency of tunnel invert filling trenches. Utility Model Content

[0004] The purpose of this utility model is to provide a movable template for filling the invert arch of a shield tunnel, so as to solve the problem mentioned in the background art that the operator needs to operate the adjusting screws on both sides of the walking device and the fixing device separately, and the adjusting screw on one side is located on the already formed trench of the already formed trench concrete platform, which is inconvenient to operate, and makes the operation of the movable template time-consuming and laborious, which greatly reduces the construction efficiency of filling the invert arch of the tunnel.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a movable template for filling trenches in the invert of a shield tunnel: comprising a movable support, a fixed frame fixedly connected to the surface of the movable support, a filling trench model fixedly connected to the bottom of the movable support, a first bidirectional screw rotatably connected to the surface of the fixed frame, a first knob fixedly connected to one end of the first bidirectional screw, a first square nut threadedly connected to the surface of the first bidirectional screw, a first connecting rod fixedly connected to the surface of the first square nut, a first guide rod fixedly connected to the surface of the first connecting rod, a first traveling wheel fixedly mounted on the surface of the first guide rod, the first guide rod slidably connected to the surface of the movable support, a second bidirectional screw rotatably connected to the surface of the fixed frame, a second knob fixedly connected to one end of the second bidirectional screw, and the surface of the second bidirectional screw... A second square nut is threaded onto the upper part of the structure. A second connecting rod is fixedly connected to the surface of the second square nut. A second guide rod is fixedly connected to the surface of the second connecting rod. A pressing plate is fixedly connected to the surface of the second guide rod. The second guide rod is slidably connected to the surface of the movable bracket. A fixing rod is fixedly connected to the surface of the movable bracket. A third guide rod is slidably connected to the surface of the fixing rod. A lifting plate is fixedly connected to the bottom of the third guide rod. A second traveling wheel is fixedly installed at the bottom of the lifting plate. A third bidirectional screw is rotatably connected to the bottom of the fixing rod. A third square nut is threaded onto the surface of the third bidirectional screw. An adjusting rod is rotatably connected to the bottom of the third square nut. The end of the adjusting rod away from the third square nut is rotatably connected to the surface of the lifting plate. A third knob is fixedly connected to one end of the third bidirectional screw.

[0006] Preferably, the first bidirectional screw is driven to rotate by a first knob, and the first bidirectional screw drives the first square nut to slide on the surface of the movable bracket by rotation. There are two sets of the first square nuts, and the sliding directions of the two sets of first square nuts are opposite.

[0007] Preferably, the first walking wheel slides on the surface of the movable bracket via the first guide rod, and the first square nut drives the first guide rod to slide on the surface of the movable bracket via the first connecting rod, and the first connecting rod is in an "L" shape.

[0008] Preferably, the second bidirectional screw is driven to rotate by the second knob, and the second bidirectional screw drives the second square nut to slide on the surface of the fixed frame by rotating. There are two sets of the second square nuts, and the sliding directions of the two sets of second square nuts are opposite.

[0009] Preferably, the extrusion plate slides on the surface of the movable bracket via the second guide rod, and the second square nut drives the second guide rod to slide on the surface of the movable bracket via the second connecting rod, with the second connecting rod having an overall "L" shape.

[0010] Preferably, the fixed rod and the movable bracket are perpendicular to each other, and two sets of the third guide rod and the second traveling wheel are provided. The lifting plate moves horizontally up and down on the fixed rod through the two sets of third guide rods, and the lifting plate drives the two sets of second traveling wheels to move horizontally up and down synchronously.

[0011] Preferably, the third bidirectional screw drives the third triangular nut to slide at the bottom of the fixed rod by rotation. There are two sets of the third triangular nut, and the sliding directions of the two sets of third triangular nuts are opposite. During the sliding process, the third triangular nut pushes the lifting plate to move horizontally up and down through the adjusting rod.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This movable template is driven by a first knob to rotate a first bidirectional screw. The rotation of the first bidirectional screw causes two sets of first square nuts to slide. The first square nuts, through a first connecting rod, cause a first guide rod to slide on the movable support. The first guide rod causes two sets of first traveling wheels to move on both sides of the formed trench concrete platform, facilitating the movement of the movable template. Meanwhile, the output shaft of the second knob drives a second bidirectional screw to rotate. The rotation of the second bidirectional screw causes two sets of second square nuts to move. The second square nuts, through a second connecting rod, cause a second guide rod to slide on the surface of the movable support. The second guide rod causes two sets of extrusion plates to press against both sides of the formed trench concrete platform, thus fixing the movable template. This eliminates the need for operation on both sides of the movable support during movement and fixing, greatly improving the construction efficiency of filling trenches in tunnel inverts.

[0014] 2. This movable template uses a third knob to rotate a third bidirectional screw. The rotation of the third bidirectional screw causes a third-shaped nut to slide at the bottom of the fixed rod. This sliding nut causes the adjusting rod to push the lifting plate to slide at the bottom of the fixed rod, thus changing the distance between the fixed rod and the first connecting rod. This, in turn, changes the support height of the second traveling wheels on the formed trench for the movable support, thereby changing the horizontal height of the filling trench model in the concrete filling section. The two sets of second traveling wheels supporting the movable support on the formed trench, combined with the third bidirectional screw, the third-shaped nut, and the adjusting rod at the bottom of the fixed rod, allow for adjustment of the height of the filling trench model to adapt to different working conditions. Furthermore, the use of two sets of second traveling wheels on the formed trench to support the movable support ensures the stability of the movable template during movement. Attached Figure Description

[0015] Figure 1 This is a frontal cross-sectional view of the overall structure of this utility model;

[0016] Figure 2 This is a three-dimensional front view of the structure of this utility model;

[0017] Figure 3 This is a frontal perspective three-dimensional schematic diagram of the fixing rod structure of this utility model;

[0018] Figure 4 This utility model Figure 2 Enlarged structural diagram at point A;

[0019] Figure 5 This utility model Figure 3 A magnified structural diagram at point B in the middle.

[0020] In the diagram: 1. Movable support; 11. Fixed support; 12. Filling groove model; 2. First bidirectional screw; 21. First knob; 22. First square nut; 23. First connecting rod; 24. First guide rod; 25. First traveling wheel; 26. Second bidirectional screw; 27. Second knob; 28. Second square nut; 29. ​​Second connecting rod; 210. Second guide rod; 211. Extrusion plate; 3. Fixed rod; 31. Third guide rod; 32. Lifting plate; 33. Second traveling wheel; 34. Third bidirectional screw; 35. Third square nut; 36. Adjusting rod; 37. Third knob. Detailed Implementation

[0021] Please see Figure 1-5 One embodiment provided by this utility model:

[0022] A movable template for filling trenches in the invert of a shield tunnel includes a movable support 1. A fixed frame 11 is fixedly connected to the surface of the movable support 1. A filling trench model 12 is fixedly connected to the bottom of the movable support 1. A first bidirectional screw 2 is rotatably connected to the surface of the fixed frame 11. A first knob 21 is fixedly connected to one end of the first bidirectional screw 2. A first square nut 22 is threaded onto the surface of the first bidirectional screw 2. A first connecting rod 23 is fixedly connected to the surface of the first square nut 22. A first guide rod 24 is fixedly connected to the surface of the first connecting rod 23. A first traveling wheel is fixedly mounted on the surface of the first guide rod 24. 25. A first guide rod 24 is slidably connected to the surface of the movable bracket 1. A second bidirectional screw 26 is rotatably connected to the surface of the fixed bracket 11. A second knob 27 is fixedly connected to one end of the second bidirectional screw 26. A second square nut 28 is threaded onto the surface of the second bidirectional screw 26. A second connecting rod 29 is fixedly connected to the surface of the second square nut 28. A second guide rod 210 is fixedly connected to the surface of the second connecting rod 29. A pressing plate 211 is fixedly connected to the surface of the second guide rod 210. The second guide rod 210 is slidably connected to the surface of the movable bracket 1. A second guide rod 211 is fixedly connected to the surface of the movable bracket 1. A fixed rod 3 is connected to the surface of the fixed rod 3, and a third guide rod 31 is slidably connected to the surface of the fixed rod 3. A lifting plate 32 is fixedly connected to the bottom of the third guide rod 31, and a second traveling wheel 33 is fixedly installed at the bottom of the lifting plate 32. A third bidirectional screw 34 is rotatably connected to the bottom of the fixed rod 3, and a third triangular nut 35 is threaded onto the surface of the third bidirectional screw 34. An adjusting rod 36 is rotatably connected to the bottom of the third triangular nut 35, and the end of the adjusting rod 36 away from the third triangular nut 35 is rotatably connected to the surface of the lifting plate 32. A third knob 37 is fixedly connected to one end of the third bidirectional screw 34. The moving template is controlled by a first... The traveling wheel 25 and the second traveling wheel 33 slide and move on the pre-formed trench concrete platform. The second traveling wheel 33 is located on the pre-formed trench and supports the entire moving template. The entire moving template is fixed by being pressed against the pre-formed trench concrete platform by two sets of extrusion plates 211, thereby realizing the functions of the traveling device and the fixing device in the comparative patent. During operation, the first traveling wheel 25 and the extrusion plate 211 of this moving template only need to be rotated by rotating the first knob 21 and the second knob 27 on one side of the fixed frame 11, and there is no need to operate on the pre-formed trench, which greatly improves the construction efficiency of the tunnel invert arch filling trench.

[0023] Furthermore, the first bidirectional screw 2 is driven to rotate by the first knob 21. The first bidirectional screw 2 drives the first square nut 22 to slide on the surface of the movable bracket 1 by rotation. There are two sets of the first square nut 22, and the sliding directions of the two sets of the first square nut 22 are opposite. After the first square nut 22 has moved, the first bidirectional screw 2 locks the position of the first square nut 22 on the movable bracket 1.

[0024] Furthermore, the first traveling wheel 25 slides on the surface of the movable support 1 via the first guide rod 24, and the first square nut 22 drives the first guide rod 24 to slide on the surface of the movable support 1 via the first connecting rod 23. The first connecting rod 23 is in an "L" shape. By moving the two sets of first guide rods 24 at the same time, the two sets of first traveling wheels 25 can be adjusted simultaneously, so that the two sets of first traveling wheels 25 contact the formed trench concrete platform at the same time, which facilitates the movement of the movable formwork.

[0025] Furthermore, the second bidirectional screw 26 is driven to rotate by the second knob 27. The rotation of the second bidirectional screw 26 causes the second square nut 28 to slide on the surface of the fixed frame 11. There are two sets of the second square nut 28, and the sliding directions of the two sets of the second square nut 28 are opposite. After the second square nut 28 has moved, the second bidirectional screw 26 locks the position of the second square nut 28 at the bottom of the fixed frame 11.

[0026] Furthermore, the extrusion plate 211 slides on the surface of the movable support 1 via the second guide rod 210, and the second square nut 28 drives the second guide rod 210 to slide on the surface of the movable support 1 via the second connecting rod 29. The second connecting rod 29 is in an "L" shape. By moving the two sets of second guide rods 210 simultaneously, the two sets of extrusion plates 211 can be adjusted simultaneously, so that the two sets of extrusion plates 211 are pressed onto the formed trench concrete platform at the same time, thus fixing the entire movable template.

[0027] Furthermore, the fixed rod 3 and the movable support 1 are perpendicular to each other. Two sets of third guide rods 31 and second traveling wheels 33 are provided. The lifting plate 32 moves horizontally on the fixed rod 3 through the two sets of third guide rods 31. The lifting plate 32 drives the two sets of second traveling wheels 33 to move horizontally synchronously. The bottom of the lifting plate 32 is on the formed trench. The lifting plate 32, together with the third-shaped nut 35, slides linearly on the concrete platform of the formed trench, thereby realizing the movement of the filling trench model 12. The third-shaped nut 35 adjusts the horizontal height of the filling trench model 12 through the movable support 1. Two sets of second traveling wheels 33 are provided to ensure the stability of the entire equipment support.

[0028] Furthermore, the third bidirectional screw 34 drives the third triangular nut 35 to slide at the bottom of the fixed rod 3 by rotation. There are two sets of the third triangular nut 35, and the sliding directions of the two sets of third triangular nuts 35 are opposite. During the sliding process, the third triangular nut 35 pushes the lifting plate 32 to move horizontally up and down through the adjusting rod 36. The adjusting rod 36 rotates during the sliding process of the third triangular nut 35. The second bidirectional screw 26 changes the horizontal distance between the fixed rod 3 and the lifting plate 32 by rotation, thereby changing the support height of the movable bracket 1.

[0029] Working principle: The first double-headed screw 2 is driven to rotate by the first knob 21. The rotation of the first double-headed screw 2 drives the two sets of first square nuts 22 to slide. The first square nuts 22 drive the first guide rod 24 to slide on the moving bracket 1 through the first connecting rod 23. The first guide rod 24 drives the two sets of first traveling wheels 25 to move on both sides of the formed trench concrete platform, which facilitates the movement of the moving template. The output shaft of the second knob 27 drives the second double-headed screw 26 to rotate. The rotation of the second double-headed screw 26 drives the two sets of second square nuts 28 to move. The second square nuts 28 drive the second guide rod 210 to slide on the surface of the moving bracket 1 through the second connecting rod 29. The second guide rod 210 drives the two sets of extrusion plates 211 to press on both sides of the formed trench concrete platform, thereby fixing the moving template. It eliminates the need to operate on both sides of the moving bracket 1 during movement and fixing, which greatly improves the construction efficiency of the tunnel invert arch filling trench.

[0030] The third knob 37 drives the third bidirectional screw 34 to rotate. The rotation of the third bidirectional screw 34 causes the third triangular nut 35 to slide at the bottom of the fixed rod 3. The sliding of the third triangular nut 35 causes the adjusting rod 36 to push the lifting plate 32 to slide at the bottom of the fixed rod 3, thereby changing the distance between the fixed rod 3 and the first connecting rod 23. This changes the support height of the second traveling wheel 33 on the formed trench for the moving support 1, and thus changes the horizontal height of the filling trench model 12 in the concrete filling part. The two sets of second traveling wheels 33 support the moving support 1 on the formed trench. With the third bidirectional screw 34, the third triangular nut 35 and the adjusting rod 36 adjusted at the bottom of the fixed rod 3, the height of the filling trench model 12 can be adjusted to adapt to different working conditions. At the same time, the use of two sets of second traveling wheels 33 on the formed trench to support the moving support 1 ensures the stability of the moving template during movement.

Claims

1. A shield tunnel inverted arch filling trench moving formwork, characterized in that: The system includes a movable support, a fixed frame fixedly connected to its surface, a filling groove model fixedly connected to its bottom, a first bidirectional screw rotatably connected to the surface of the fixed frame, a first knob fixedly connected to one end of the first bidirectional screw, a first square nut threadedly connected to the surface of the first bidirectional screw, a first connecting rod fixedly connected to the surface of the first square nut, a first guide rod fixedly connected to the surface of the first connecting rod, a first traveling wheel fixedly mounted on the surface of the first guide rod, and the first guide rod slidably connected to the surface of the movable support. A second bidirectional screw rotatably connected to the surface of the fixed frame, a second knob fixedly connected to one end of the second bidirectional screw, and a second square nut threadedly connected to the surface of the second bidirectional screw. A second connecting rod is fixedly connected to the surface of a nut. A second guide rod is fixedly connected to the surface of the second connecting rod. A pressing plate is fixedly connected to the surface of the second guide rod. The second guide rod is slidably connected to the surface of a movable bracket. A fixing rod is fixedly connected to the surface of the movable bracket. A third guide rod is slidably connected to the surface of the fixing rod. A lifting plate is fixedly connected to the bottom of the third guide rod. A second traveling wheel is fixedly installed at the bottom of the lifting plate. A third bidirectional screw is rotatably connected to the bottom of the fixing rod. A third triangular nut is threaded onto the surface of the third bidirectional screw. An adjusting rod is rotatably connected to the bottom of the triangular nut. The end of the adjusting rod away from the triangular nut is rotatably connected to the surface of the lifting plate. A third knob is fixedly connected to one end of the third bidirectional screw.

2. The mobile formwork for filling the inverted arch groove of a shield tunnel according to claim 1, characterized in that: The first bidirectional screw is driven to rotate by the first knob. The first bidirectional screw drives the first square nut to slide on the surface of the movable bracket by rotation. There are two sets of the first square nuts, and the sliding directions of the two sets of first square nuts are opposite.

3. The movable template for filling the invert trench of a shield tunnel according to claim 1, characterized in that: The first traveling wheel slides on the surface of the movable bracket via the first guide rod, and the first square nut drives the first guide rod to slide on the surface of the movable bracket via the first connecting rod. The first connecting rod is in an "L" shape.

4. The movable template for filling the invert trench of a shield tunnel according to claim 1, characterized in that: The second bidirectional screw is driven to rotate by the second knob. The rotation of the second bidirectional screw causes the second square nut to slide on the surface of the fixed frame. There are two sets of the second square nuts, and the sliding directions of the two sets of second square nuts are opposite.

5. A movable template for filling the invert trench of a shield tunnel according to claim 1, characterized in that: The extrusion plate slides on the surface of the movable bracket via the second guide rod, and the second square nut drives the second guide rod to slide on the surface of the movable bracket via the second connecting rod. The second connecting rod is in an "L" shape.

6. The movable template for filling the invert trench of a shield tunnel according to claim 1, characterized in that: The fixed rod and the movable bracket are perpendicular to each other. There are two sets of the third guide rod and the second traveling wheel. The lifting plate moves horizontally up and down on the fixed rod through the two sets of third guide rods. The lifting plate drives the two sets of second traveling wheels to move horizontally up and down synchronously.

7. A movable template for filling the invert trench of a shield tunnel according to claim 1, characterized in that: The third bidirectional screw drives the third triangular nut to slide at the bottom of the fixed rod by rotation. There are two sets of the third triangular nut, and the sliding directions of the two sets of third triangular nuts are opposite. During the sliding process, the third triangular nut pushes the lifting plate to move horizontally up and down through the adjusting rod.

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