Pipe piece bracket for spraying concrete pipe piece

Abstract

The utility model belongs to the technical field of duct piece production and processing, and particularly relates to a duct piece bracket for spraying a concrete duct piece. Comprising a base and a duct piece, a supporting block and a support are fixedly installed on the base, a turnover frame is hinged to the support and horizontally placed on the supporting block, a hydraulic cylinder is hinged to the base, the output end of the hydraulic cylinder is hinged to the turnover frame, and limiting blocks are hinged to the two sides of the top end of the turnover frame in the vertical state; a telescopic rod is hinged between the limiting block and the base through a universal joint, the distance from the hinge point between the turnover frame in the vertical state and the limiting block to the hinge point between the telescopic rod and the base is larger than the maximum length of the telescopic rod, and a rubber rolling wheel is rotationally arranged at the end of the limiting block. And when the overturning frame reaches a vertical state, the rubber rolling wheels make contact with the surface of the duct piece, and the problem that the shield duct piece is prone to displacement and toppling during overturning is solved.

Description

Technical Field

[0001] This utility model belongs to the field of segment production and processing technology, specifically relating to a segment bracket for spraying concrete segments. Background Technology

[0002] With economic development and accelerated urbanization, tunnels in urban areas such as subways, water conservancy and hydropower projects, highways, and railways all require tunnel lining segments for support. Shield tunnel lining segments are the main assembly components in shield tunneling, forming the innermost barrier of the tunnel and bearing the responsibility of resisting soil pressure, groundwater pressure, and other special loads. During production, spraying a curing agent onto the demolded segments is an essential step, necessitating a 90-degree rotation of the segments. The segments are typically placed on a horizontally positioned support plate, and a power cylinder drives the support plate to rotate from horizontal to vertical, causing the segments to rotate accordingly.

[0003] The existing patent with publication number CN218177244U has made a technical innovation to address the problem that tunnel segments are prone to displacement when they are flipped on the support plate. It adds a limiting component to limit and clamp the tunnel segments. However, the weight of a single tunnel segment is huge, basically 3 tons or more, and the limiting component is located at the bottom of the segment. If displacement occurs, the limiting component is easily damaged by the tilted tunnel segment. To address this, we propose a tunnel segment bracket for concrete segment spraying. Utility Model Content

[0004] In view of this, the purpose of this utility model is to provide a segment bracket for spraying concrete segments, which solves the problem that shield tunnel segments are prone to displacement and collapse when they are rotated.

[0005] This utility model solves the above-mentioned technical problems through the following technical means:

[0006] A segment support for spraying concrete segments includes a base and segments. A support block and a support are fixedly installed on the base. A tilting frame is hinged to the support and placed horizontally on the support block. A hydraulic cylinder is hinged to the base, and the output end of the hydraulic cylinder is hinged to the tilting frame. Limiting blocks are hinged to both sides of the top of the tilting frame in the vertical state. A telescopic rod is hinged between the limiting block and the base through a universal joint. The distance between the hinge point between the tilting frame and the limiting block in the vertical state and the hinge point between the telescopic rod and the base is greater than the maximum length of the telescopic rod. Rubber rollers are rotatably provided at the ends of the limiting blocks. When the tilting frame reaches the vertical state, the rubber rollers contact the surface of the segment.

[0007] Based on the above technical solution, the present invention has made the following improvements:

[0008] Furthermore, the tilting frame is detachably equipped with several top plates, the upper surface of which is arc-shaped and matches the curvature of the inner surface of the segment. The top plates prevent the segments from slipping off the tilting frame when they are placed on it by the lifting device, and the detachable nature of the top plates facilitates replacement and adjustment according to the size of the segments.

[0009] Furthermore, a flexible pad is placed on the inner bottom surface of the top plate when it is placed vertically with the tilting frame. This design can increase the friction between the tube segment and the top plate during the tilting process, reduce the sliding speed of the tube segment on the tilting frame during the tilting process, and reduce the impact force on the tilting frame during the tilting process. At the same time, the flexible pad on the top plate surface can also prevent the tube segment from being scratched by the edge of the top plate when it is lifted after being tilted, thus affecting its use.

[0010] Furthermore, the base is equipped with anti-slip pads; this design increases the friction between the device and the ground, preventing the entire device from tipping over due to excessive mass of the tube segments during the flipping process.

[0011] Furthermore, the telescopic rod includes an outer rod and an inner rod. A through groove is opened on the side of the outer rod, and a slider is fixedly installed at the bottom of the inner rod. The slider passes through the through groove, and a screw is screwed to the side wall at the top of the outer rod. By rotating the screw, the length of the screw passing through the through groove is adjusted to limit the maximum distance that the slider can move in the through groove, thereby adjusting and controlling the maximum length of the telescopic rod to adapt to pipe segments of different thicknesses, ensuring that pipe segments of different thicknesses can be clamped by the rubber rollers.

[0012] The beneficial effects of this utility model are as follows: the limiting block clamps the shield tunnel segment simultaneously with the flipping action of the flipping frame without affecting the placement of the tunnel segment, thereby limiting its position and preventing the shield tunnel segment from tilting during the flipping process. After it is flipped into a vertical state, the lifting device can directly lift the tunnel segment. The rubber rollers enable the tunnel segment to be lifted smoothly, avoiding the problem of the limiting block scratching the surface of the tunnel segment during the lifting process. Attached Figure Description

[0013] This utility model can be further illustrated by the non-limiting embodiments given in the accompanying drawings;

[0014] Figure 1 This is a schematic diagram of a segment support structure for spraying concrete segments in an embodiment of this utility model. Figure 1 ;

[0015] Figure 2 This is a schematic diagram of a segment support structure for spraying concrete segments in an embodiment of this utility model. Figure 2 ;

[0016] Figure 3 This is a schematic diagram of a segment support structure for spraying concrete segments in an embodiment of this utility model. Figure 3 ;

[0017] Figure 4 yes Figure 2 An enlarged view of point A;

[0018] Among them, 1-base, 2-support block, 3-support, 4-tilting frame, 5-hydraulic cylinder, 6-limiting block, 7-telescopic rod, 71-outer rod, 711-through groove, 72-inner rod, 721-slider, 73-screw, 8-tube segment, 9-rubber roller, 10-top plate. Detailed Implementation

[0019] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments:

[0020] like Figures 1 to 4 As shown, a segment 8 support for spraying concrete segments 8 includes a base 1, a support block 2 and a support 3 fixedly installed on the base 1, a tilting frame 4 hinged to the support 3, the tilting frame 4 being horizontally placed on the support block 2, a hydraulic cylinder 5 hinged to the base 1, the output end of the hydraulic cylinder 5 being hinged to the tilting frame 4, limit blocks 6 being hinged to both sides of the top of the tilting frame 4 in a vertical state, the limit blocks 6 initially being open, a telescopic rod 7 being hinged between the limit blocks 6 and the base 1 via a universal joint, the distance from the hinge point between the limit blocks 6 and the telescopic rod 7 in a vertical state to the hinge point between the telescopic rod 7 and the base 1 being greater than the maximum length of the telescopic rod 7, and a rubber roller 9 being rotatably provided at the end of the limit block 6. When the tilting frame 4 reaches the vertical position, the rubber roller 9 contacts the surface of the tube segment 8. During the tilting process of the hydraulic cylinder 5, when the telescopic rod 7 is pulled to its maximum length, the tube segment 8 has not yet been completely tilted to the vertical position. Therefore, the limiting block 6 is fastened to the inside of the tilting frame 4 under the action of the telescopic rod 7. When the tilting frame 4 reaches the vertical position, the rubber roller 9 at the end of the limiting block 6 just contacts the surface of the tube segment 8, and works with the top plate 10 to clamp the tube segment 8 and limit its position, preventing the tube segment 8 from tipping over and falling off. At the same time, the use of the rubber roller 9 allows the tube segment 8 to be lifted smoothly after being tilted, preventing the surface of the tube segment 8 from being scratched by the limiting block 6 during the lifting process, which would affect its use.

[0021] Specifically, the tilting frame 4 is detachably equipped with several top plates 10. The upper surface of the top plate 10 is arc-shaped, matching the curvature of the inner surface of the tube segment 8. The top plates 10 can prevent the tube segment 8 from slipping off the tilting frame 4 when it is placed on the tilting frame 4 by the lifting device. The detachability of the top plates 10 makes it easy to replace and adjust them according to the size of the tube segment 8.

[0022] Specifically, a flexible pad is provided on the bottom inner surface of the top plate 10 when it is placed vertically with the flipping frame 4. This design can increase the friction between the tube segment 8 and the top plate 10 during the flipping process, reduce the sliding speed of the tube segment 8 on the flipping frame 4 during the flipping, and reduce the impact force on the flipping frame 4 during the flipping. At the same time, the flexible pad on the surface of the top plate 10 can also prevent the tube segment 8 from being scratched by the edge of the top plate 10 when it is lifted after being flipped, thus affecting its use.

[0023] Specifically, the base 1 is equipped with an anti-slip pad; this design increases the friction between the device and the ground, preventing the entire device from tipping over due to the excessive mass of the tube segment 8 during the flipping process.

[0024] Specifically, the telescopic rod 7 includes an outer rod 71 and an inner rod 72. The outer rod 71 has a through groove 711 on its side. The inner rod 72 has a slider 721 fixedly installed at its bottom. The slider 721 passes through the through groove 711. A screw 73 is screwed onto the side wall at the top of the outer rod 71. By rotating the screw 73, the length of the screw 73 passing through the through groove 72 is adjusted to limit the maximum distance that the slider 71 can move in the through groove 72, thereby adjusting and controlling the maximum length of the telescopic rod 7 to adapt to tube segments 8 of different thicknesses, ensuring that tube segments 8 of different thicknesses can be clamped by the rubber roller 9.

[0025] The method of using this utility model is as follows: Use a lifting device to place the pipe segment 8 horizontally on the tilting frame 4, and then start the hydraulic cylinder 5 to pull the tilting frame 4 to tilt it. The telescopic rod 7 is stretched accordingly. After the telescopic rod 7 is stretched to its maximum length, the pipe segment 8 has not been completely tilted to a vertical state. Therefore, the limiting block 6 moves towards the middle of the tilting frame 4 under the action of the telescopic rod 7. The rubber roller 9 at the end of the limiting block 6 and the top plate 10 work together to clamp the pipe segment 8 and limit the pipe segment 8 to prevent it from tipping over and falling off under the action of inertia. Then, under the action of the rubber roller 9, the lifting device can smoothly lift the pipe segment 8 away from the tilting frame 4. Then start the hydraulic cylinder 5 again to put the tilting frame 4 back into a horizontal state. At this time, the telescopic rod 7 retracts and the limiting block 6 opens outward, which will not affect the placement of the new pipe segment 8.

[0026] The above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications and substitutions should be covered within the scope of the claims of this utility model. Technologies, shapes, and structural parts not described in detail in this utility model are all known technologies.

Claims

1. A segment bracket for spraying concrete segments, characterized in that: The system includes a base (1) and a tube segment (8). A support block (2) and a support (3) are fixedly installed on the base (1). A flipping frame (4) is hinged on the support (3). The flipping frame (4) is placed horizontally on the support block (2). A hydraulic cylinder (5) is hinged on the base (1). The output end of the hydraulic cylinder (5) is hinged to the flipping frame (4). Limiting blocks (6) are hinged on both sides of the top of the flipping frame (4) in the vertical state. A telescopic rod (7) is hinged between the limiting block (6) and the base (1) through a universal joint. The distance between the hinge point between the flipping frame (4) and the limiting block (6) in the vertical state and the hinge point between the telescopic rod (7) and the base (1) is greater than the maximum length of the telescopic rod (7). A rubber roller (9) is rotatably provided at the end of the limiting block (6). When the flipping frame (4) reaches the vertical state, the rubber roller (9) contacts the surface of the tube segment (8).

2. The segment bracket for spraying concrete segments according to claim 1, characterized in that: The flipping frame (4) is detachably equipped with several top plates (10), the upper surface of which is arc-shaped and matches the curvature of the inner surface of the tube segment.

3. A segment bracket for spraying concrete segments according to claim 2, characterized in that: The top plate (10) surface and the bottom inner surface of the vertically placed flipping frame (4) are provided with flexible pads.

4. A segment bracket for spraying concrete segments according to claim 3, characterized in that: The base (1) has an anti-slip pad installed at the bottom.

5. A segment bracket for spraying concrete segments according to claim 4, characterized in that: The telescopic rod (7) includes an outer rod (71) and an inner rod (72). The outer rod (71) has a through groove (711) on its side. The inner rod (72) has a slider (721) fixedly installed at its bottom. The slider (721) passes through the through groove (711). The through groove (711) has a screw (73) installed on the side wall of the top of the outer rod (71) by a threaded rotation.

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