A tool for controlling the surface flatness and drainage slope of large-volume concrete

Abstract

This utility model belongs to the field of tunnel leveling layer construction technology, specifically a tool for controlling the surface flatness and drainage slope of large-volume concrete. It includes a hand-held grinder and a vibratory leveling ruler mounted on the grinder. The vibratory leveling ruler is designed to be flat in the middle and sloped at both ends. Guide plates, supported on side molds, are provided at both ends of the ruler to stabilize its movement direction, and these guide plates are inserted into the concrete. This utility model achieves drainage slope formation while leveling the tunnel leveling layer, improving construction efficiency while ensuring a more regular and effective drainage slope formation.

Description

Technical Field

[0001] This utility model relates to the field of tunnel leveling layer construction technology; specifically, this utility model relates to a tool for controlling the surface flatness and drainage slope of large-volume concrete. Background Technology

[0002] In the construction of new high-speed railways, the flatness of the invert arch filling and leveling layer cannot be well controlled during tunnel construction, and the slope of the drainage slopes on both sides cannot be guaranteed. Especially when conventional hand-held trowels are used with vibratory leveling tools, the lateral displacement generated by the vibratory leveling tool during vibration cannot be effectively controlled, leading to numerous textures on the drainage slope surface and making it difficult to achieve effective drainage slope shaping. Therefore, to solve the problems of low concrete surface flatness and unreliable drainage slopes on both sides, it is essential to design a tool to control the flatness of concrete and the slope of the drainage slope. Utility Model Content

[0003] In view of this, the present invention provides a tool for controlling the surface flatness and drainage slope of large-volume concrete, thereby solving or at least alleviating the above-mentioned problems existing in the prior art.

[0004] To achieve the aforementioned objective, this utility model provides a tool for controlling the surface flatness and drainage slope of large-volume concrete, including a hand-held polisher and a vibrating leveling ruler installed on the hand-held polisher. The vibrating leveling ruler is configured to be flat in the middle and sloped at both ends. Both ends of the vibrating leveling ruler are provided with guide plates that are supported on the side mold to stabilize the moving direction of the vibrating leveling ruler, and the guide plates are inserted into the concrete.

[0005] Preferably, the guide plate is located in front of the vibrating ruler in the direction of movement, and circular pieces that can roll on the side mold surface are rotatably mounted at both ends of the guide plate, and the edges of the upper and lower circumferential surfaces of the circular pieces are provided with guide bevels.

[0006] Preferably, a longitudinal plate is vertically fixed to the inner end of the guide plate, a transverse plate extending inward is vertically fixed to the top of the longitudinal plate, and a support plate supporting the transverse plate is provided at the end of the vibrating ruler.

[0007] Preferably, an extension plate is sleeved on the outside of the longitudinal plate, and rollers capable of rolling on the top of the side mold are provided at both the front and rear ends of the extension plate.

[0008] Preferably, the extension plate is slidably sleeved on the longitudinal plate in the height direction, a longitudinal bolt is threaded on the support plate, a through hole is provided on the support plate, and the bottom end of the longitudinal bolt passes through the through hole and presses down on the top of the extension plate.

[0009] Preferably, the support plate is provided with a straight groove parallel to the side mold, the front end of the straight groove is provided with a rotating groove, a slider is provided in the rotating groove, the inner end of the horizontal plate extends to the bottom of the front end of the support plate and is fixedly connected to the slider, the slider can rotate in the rotating groove to two states: parallel to the straight groove or perpendicular to the straight groove, and the slider is adapted to the straight groove.

[0010] Preferably, the extension plate is configured as a U-shaped plate with the opening facing downwards, and a transverse bolt is threaded onto the inner end of the extension plate.

[0011] Compared with the prior art, the present invention has at least the following beneficial effects:

[0012] (1) By setting the vibratory leveling rod to be straight in the middle and sloping at both ends, the drainage slope can be formed at both ends of the leveling layer during the vibratory leveling operation of the tunnel arch leveling layer, which greatly improves the construction efficiency of the leveling layer and can better control the flatness of the leveling layer and the drainage slope forming effect.

[0013] (2) By setting a guide plate to slide against the side mold, the movement of the vibrating ruler can be guided and limited, which can reduce the lateral movement of the vibrating ruler and thus improve the slope forming effect of the drainage slope. Attached Figure Description

[0014] The disclosure of this utility model will become more apparent with reference to the accompanying drawings. It should be understood that these drawings are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. In the drawings:

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This utility model Figure 1 Enlarged view of point A in the image;

[0017] Figure 3 This is a partially exploded view of the present invention.

[0018] Attached reference numerals: 1-Handheld polisher; 2-Vibrating straightedge; 3-Guide plate; 4-Circular disc; 5-Horizontal plate; 6-Support plate; 7-Extended plate; 8-Roller; 9-Longitudinal bolt; 10-Through hole; 11-Straight groove; 12-Rotating groove; 13-Slider; 14-Transverse bolt; 15-Longitudinal plate. Detailed Implementation

[0019] The technical solutions in the embodiments of this utility model will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0020] like Figures 1 to 3 As shown, this utility model provides a tool for controlling the surface flatness and drainage slope of large-volume concrete, including a hand-held polisher 1 and a vibrating flat ruler 2 installed on the hand-held polisher 1. The vibrating flat ruler 2 is set to be flat in the middle and sloped at both ends. Both ends of the vibrating flat ruler 2 are provided with guide plates 3, which are supported on the side mold to stabilize the moving direction of the vibrating flat ruler 2, and the guide plates 3 are inserted into the concrete.

[0021] By making the above settings on the vibratory leveling ruler 2, it is possible not only to level the concrete surface during the construction of the tunnel invert arch filling leveling layer, but also to form a slope on the leveling layer according to the preset drainage slope.

[0022] In addition, during the operation, the guide plate 3 is used to slide on the side mold to guide the movement direction of the vibrating ruler 2, which can improve the uniformity and forming effect of the drainage slope and avoid a large number of textures on the drainage slope due to vibration and lateral movement.

[0023] In practice, the length of the vibrating leveling ruler 2 should be designed to adapt to the width of the tunnel invert leveling layer, and the slopes at both ends of the vibrating leveling ruler 2 should be designed according to the slope requirements of the actual drainage slope of the tunnel invert leveling layer.

[0024] In this embodiment, the guide plate 3 is located in front of the vibrating ruler 2 in the direction of movement, so that the guide plate 3 continuously cuts the concrete during the movement, and the cut concrete can be quickly refilled by the vibration of the vibrating ruler 2, ensuring that the compactness of the concrete is not affected.

[0025] Both ends of the guide plate 3 are rotatably mounted with circular pieces 4 that can roll on the surface of the side mold, and the edges of the upper and lower circumferential surfaces of the circular pieces 4 are provided with guide angles. The rolling of the circular pieces 4 on the side mold and the setting of the guide angles enable the circular pieces 4 to cut the concrete more smoothly and move within the concrete, thereby reducing friction and reducing movement resistance.

[0026] A longitudinal plate 15 is vertically fixed to the inner end of the guide plate 3, and a transverse plate 5 extending inward is vertically fixed to the top of the longitudinal plate 15. A support plate 6 supporting the transverse plate 5 is provided at the end of the vibrating ruler 2. The support plate 6 stably mounts the longitudinal plate 15 on the vibrating ruler 2.

[0027] An extension plate 7 is fitted over the outer side of the longitudinal plate 15. Rollers 8, capable of rolling on the top of the side mold, are provided at both the front and rear ends of the extension plate 7. By providing the extension plate 7 and rollers 8, the horizontal state of the vibrating ruler 2 can be maintained more stably, improving the leveling effect. In particular, it prevents the vibrating ruler 2 from tilting back and forth, thus avoiding textures on the drainage slope and improving the slope forming effect.

[0028] The extended plate 7 is slidably fitted onto the longitudinal plate 15 in the height direction. A longitudinal bolt 9 is threaded onto the support plate 6, which has a through hole 10. The bottom end of the longitudinal bolt 9 passes through the through hole 10 and presses down onto the top of the extended plate 7. On one hand, the longitudinal bolt 9, by passing through the through hole 10, can fix the horizontal plate 5 in a position perpendicular to the support plate 6. On the other hand, by rotating the longitudinal bolt 9, the height of the extended plate 7 can be adjusted, thereby allowing adjustment of the tilt angle of the vibrating ruler 2 according to leveling requirements, improving the tool's usability.

[0029] The support plate 6 is provided with a straight groove 11 parallel to the side mold. The front end of the straight groove 11 is provided with a rotating groove 12. A slider 13 is provided in the rotating groove 12. The inner end of the horizontal plate 5 extends to the bottom of the front end of the support plate 6 and is fixedly connected to the slider 13. The slider 13 can rotate in the rotating groove 12 to either be parallel to the straight groove 11 or perpendicular to the straight groove 11. The slider 13 is adapted to the straight groove 11.

[0030] When the guide plate 3 slides on the side mold, the slider 13 is located in the rotating groove 12 and the straight groove 11 is in a vertical state. At this time, combined with the locking effect of the longitudinal bolt 9 and the through hole 10, the horizontal plate 5 is stabilized in a state perpendicular to the support plate 6, so that the guide plate 3 has a stable guiding effect.

[0031] As the leveling operation proceeds, when the guide plate 3 moves to the end mold position, the longitudinal bolt 9 is pulled out from the through hole 10, and then the horizontal plate 5 is rotated to a state parallel to the support plate 6. At this time, the slider 13 is located in the rotating groove 12 and is parallel and aligned with the straight groove 11. Then, the guide wheel abuts against the inner surface of the end face. In subsequent leveling operations, the slider 13 can be displaced in the straight groove 11, allowing the vibrating ruler 2 to move to a position very close to the end mold. This avoids the situation where a large area of ​​the leveling layer near the end mold cannot be effectively leveled due to the length of the support plate 6. At the same time, it is not necessary to remove the support plate 6 and the vibrating ruler 2, making the tool more convenient to use.

[0032] The extended plate 7 is configured as a U-shaped plate with the opening facing downwards, and a transverse bolt 14 is threaded on the inner end of the extended plate 7. With this configuration, when moving to the end mold position, the longitudinal plate 15 is lowered from the outside of the end mold, and then the transverse bolt 14 is rotated to clamp the end mold inside and out using the transverse bolt 14 in conjunction with the longitudinal plate 15. The slider 13 and the straight groove 11 guide the vibrating ruler 2, making the drainage slope near the end mold more regular in its formation.

[0033] The technical scope of this utility model is not limited to the contents of the above description. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this utility model, and all such modifications and variations should fall within the scope of this utility model.

Claims

1. A tool for controlling the surface flatness and drainage slope of mass concrete, characterized in that, Includes a hand-held polishing machine (1) and a vibrating flat ruler (2) installed on the hand-held polishing machine (1). The vibrating flat ruler (2) is set in a state where the middle is flat and the two ends are sloped. The two ends of the vibrating flat ruler (2) are provided with guide plates (3) for stabilizing the moving direction of the vibrating flat ruler (2) by supporting it on the side mold, and the guide plates (3) are inserted into the concrete.

2. The tool for controlling the surface flatness and drainage slope of large-volume concrete as described in claim 1, characterized in that, The guide plate (3) is located in front of the vibrating ruler (2) in the direction of movement. Both ends of the guide plate (3) are rotatably mounted with circular pieces (4) that can roll on the side mold surface, and the edges of the upper and lower circumferential surfaces of the circular pieces (4) are provided with guide angles.

3. The tool for controlling the surface flatness and drainage slope of large-volume concrete as described in claim 1, characterized in that, The guide plate (3) has a vertically fixed longitudinal plate (15) at its inner end, and a horizontal plate (5) extending inward is vertically fixed at the top of the longitudinal plate (15). The end of the vibrating ruler (2) is provided with a support plate (6) that supports the horizontal plate (5).

4. The tool for controlling the surface flatness and drainage slope of large-volume concrete as described in claim 3, characterized in that, An extension plate (7) is fitted on the outside of the longitudinal plate (15), and rollers (8) capable of rolling on the top of the side mold are provided at both the front and rear ends of the extension plate (7).

5. The tool for controlling the surface flatness and drainage slope of large-volume concrete as described in claim 4, characterized in that, The extension plate (7) is slidably sleeved on the longitudinal plate (15) in the height direction. A longitudinal bolt (9) is threaded on the support plate (6). A through hole (10) is provided on the support plate (6), and the bottom end of the longitudinal bolt (9) passes through the through hole (10) and presses down on the top of the extension plate (7).

6. The tool for controlling the surface flatness and drainage slope of large-volume concrete as described in claim 4, characterized in that, The support plate (6) is provided with a straight groove (11) parallel to the side mold. A rotating groove (12) is provided at the front end of the straight groove (11). A slider (13) is provided in the rotating groove (12). The inner end of the horizontal plate (5) extends to the bottom of the front end of the support plate (6) and is fixedly connected to the slider (13). The slider (13) can rotate in the rotating groove (12) to either be parallel to the straight groove (11) or perpendicular to the straight groove (11). The slider (13) is adapted to the straight groove (11).

7. The tool for controlling the surface flatness and drainage slope of large-volume concrete as described in claim 6, characterized in that, The extended plate (7) is configured as a U-shaped plate with the opening facing downwards, and the inner end of the extended plate (7) is threaded with a transverse bolt (14).

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