Self-stirring mud pit of cast-in-situ bored pile

By adopting a self-mixing mud pit structure with adjustable baffle height in the mud pit, the problem of mud recycling has been solved, realizing efficient mud recycling and resource utilization, and improving construction efficiency and quality.

CN224173298UActive Publication Date: 2026-04-28WUXI METRO CONSTR CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
WUXI METRO CONSTR CO LTD
Filing Date
2025-02-21
Publication Date
2026-04-28

AI Technical Summary

Technical Problem

In existing technologies, the baffle heights of mud pits and sedimentation tanks are fixed, which prevents mud in the sedimentation tank that is below the baffle height from flowing into the mud pit, thus reducing the mud recycling rate.

Method used

A self-stirring mud tank was designed, which adopts an adjustable baffle height structure. The lightweight plate is moved up and down by a drive component to ensure that the mud in the sedimentation tank can flow into the mud tank. The components include floating balls, sliders, chutes, rotating rods and motors to realize the automatic adjustment of the baffle height.

Benefits of technology

It improved the recycling rate of mud, enhanced the efficiency of mud recycling, reduced resource waste, and improved construction efficiency and quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a self-stirring mud pit of a cast-in-situ bored pile, which relates to the technical field of cast-in-situ bored piles, has the advantages that the height of a baffle is adjustable, so that mud in a settling pond can enter the mud pit conveniently, and adopts the technical scheme that the self-stirring mud pit comprises a pit body and a baffle which is arranged in the pit body and divides the pit body into the mud pit and the settling pond, the baffle comprises a vertical plate arranged in the tank body and a plastic light plate located on the side, facing the sedimentation tank, of the vertical plate, the bottom, the left side and the right side of the vertical plate are fixed to the inner wall of the tank body, and the left side and the right side of the light plate are slidably connected to the tank wall of the sedimentation tank; and a driving piece for enabling the light plate to lift along with the lifting of the liquid level in the sedimentation tank is arranged in the sedimentation tank.
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Description

Technical Field

[0001] This utility model relates to the field of bored pile technology, specifically to a self-mixing mud tank for bored piles. Background Technology

[0002] Self-mixing mud pits are used in bored pile construction. They can automatically mix the mud to ensure its uniformity and stability, thereby improving construction efficiency and quality.

[0003] In the construction of bored piles, mud pits and sedimentation tanks are used in conjunction with each other. The mud pit provides the drilling mud needed for the borehole, while the sedimentation tank purifies the mud, ensuring its quality and reuse efficiency. This combined approach not only improves construction efficiency but also helps protect the environment and reduce resource waste.

[0004] Currently, mud pits and sedimentation tanks are integrated and installed underground, separated by a baffle. The upper part of the baffle is lower than the upper part of both the mud pit and the sedimentation tank to allow the upper layer of mud in the sedimentation tank to flow into the mud pit, reducing the amount of drill cuttings entering the mud pit from the sedimentation tank. However, the following situation arises: because the liquid level in the sedimentation tank drops as mud flows into the mud pit, and the baffle height is fixed, mud in the sedimentation tank below the baffle height cannot flow into the mud pit, reducing the mud recycling rate.

[0005] Therefore, the applicant has developed a new technical solution in the actual production process to solve the above-mentioned technical problems. Utility Model Content

[0006] To address the aforementioned technical shortcomings, the purpose of this utility model is to provide a self-mixing mud tank for bored piles, which has the advantage of adjustable baffle height to facilitate the entry of mud from the sedimentation tank into the mud tank.

[0007] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0008] This utility model provides a self-stirring mud tank for bored piles, including a tank body and a baffle plate disposed within the tank body to divide the tank body into a mud tank and a sedimentation tank. The baffle plate includes a vertical plate disposed within the tank body and a lightweight plastic plate located on the side of the vertical plate facing the sedimentation tank. The bottom and left and right sides of the vertical plate are fixed to the inner wall of the tank body. The left and right sides of the lightweight plate are slidably connected to the wall of the sedimentation tank. The sedimentation tank is provided with a driving component that causes the lightweight plate to rise and fall with the liquid level in the sedimentation tank.

[0009] By adopting the above technical solution, the vertical plate and the lightweight plate together serve as the dividing plate between the sedimentation tank and the mud tank. The lightweight plate can move up and down. When the mud in the sedimentation tank that is higher than the height of the baffle flows into the mud tank, that is, the mud that is higher than the top of the lightweight plate, the liquid level in the sedimentation tank will gradually drop. At this time, the driving component will drive the lightweight plate to drop as well, so that the height of the baffle can be adjusted, which facilitates the return of the upper layer of mud liquid in the sedimentation tank to the mud tank and increases the recycling rate of mud.

[0010] Preferably, the lightweight plate has upwardly extending rods on both the left and right sides, and the upper ends of the two extension rods are provided with sliders that slide on the wall of the sedimentation tank. The wall of the sedimentation tank is provided with a sliding groove for the sliders to slide.

[0011] Preferably, the driving component includes a plurality of floating balls disposed on the upper end of a lightweight plate, each of the floating balls being located on the liquid surface of the sedimentation tank.

[0012] Preferably, the upper end of the lightweight plate is provided with several hollow plastic floating rods extending toward the sedimentation tank, and each of the floating balls is fixed on the floating rod.

[0013] Preferably, the chute is located above the liquid surface of the sedimentation tank, and the driving component includes an ultrasonic level sensor disposed on the inner wall of the sedimentation tank and located above the liquid surface of the sedimentation tank. Vertical fixed rods are provided on the upper walls of the sedimentation tank, and a crossbar is provided between the two fixed rods. A power component that drives the slider to move in the chute is provided on the crossbar.

[0014] Preferably, the power component includes two horizontally opposite rotating rods disposed in the middle of the crossbar, one of which is driven to rotate coaxially by a motor fixed on the crossbar. Both rotating rods are coaxially fixedly connected with gears, which mesh with each other. Both sliders are provided with pull ropes at their upper ends. Both ends of the crossbar are rotatably connected to steering wheels that extend the pull ropes from the vertical to the horizontal direction. The ends of the two pull ropes away from the sliders pass around the steering wheels and are respectively wound around the two rotating rods.

[0015] Preferably, the motor is a servo motor.

[0016] Preferably, the vertical plate has a plurality of triangular prisms distributed along the height direction of the vertical plate on one side facing the lightweight plate, and the triangular prisms are spaced apart on the vertical plate. The lightweight plate has a moving groove for the triangular prisms to slide up and down.

[0017] The beneficial effects of this utility model are as follows: the vertical plate and the lightweight plate together serve as a dividing plate between the sedimentation tank and the mud tank, and the lightweight plate can move up and down. When the mud in the sedimentation tank that is higher than the height of the baffle flows into the mud tank, that is, the mud that is higher than the top of the lightweight plate, the liquid level in the sedimentation tank will gradually drop. At this time, the driving component will drive the lightweight plate to drop as well, so that the height of the baffle can be adjusted, which facilitates the return of the upper layer of mud liquid in the sedimentation tank to the mud tank and increases the recycling rate of mud. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of this embodiment;

[0020] Figure 2 This is a schematic diagram illustrating the structure of the chute in this embodiment;

[0021] Figure 3 This is a schematic diagram illustrating the structure of the rotating rod in this embodiment.

[0022] Explanation of reference numerals in the attached figures:

[0023] In the diagram: 1. Pool body; 11. Mud pool; 12. Sedimentation pool; 13. Vertical plate; 131. Lightweight plate; 132. Extension rod; 133. Sliding block; 134. Slide chute; 14. Floating ball; 141. Floating rod; 15. Fixed rod; 151. Horizontal bar; 152. Rotating rod; 153. Gear; 154. Pull rope; 155. Steering wheel; 16. Triangular prism; 161. Moving trough. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] A self-mixing mud pit for bored piles, such as Figure 1 and Figure 2The system includes a pool body 1 and a baffle plate disposed within the pool body 1, dividing the pool body 1 into a mud pool 11 and a sedimentation pool 12. The baffle plate includes a vertical plate 13 disposed within the pool body 1 and a lightweight plastic plate 131 located on the side of the vertical plate 13 facing the sedimentation pool 12. The bottom and left and right sides of the vertical plate 13 are fixed to the inner wall of the pool body 1. The left and right sides of the lightweight plate 131 are slidably connected to the wall of the sedimentation pool 12, and one side of the lightweight plate 131 is attached to the vertical plate 13. The sedimentation pool 12 is provided with a drive component that causes the lightweight plate 131 to rise and fall with the rise and fall of the liquid level in the sedimentation pool 12.

[0026] like Figure 1 and Figure 2 The vertical plate 13 and the lightweight plate 131 together serve as a partition between the sedimentation tank 12 and the mud tank 11. The lightweight plate 131 can move up and down. When the mud in the sedimentation tank 12 that is higher than the height of the baffle flows into the mud tank 11, that is, the mud that is higher than the top of the lightweight plate 131, the liquid level in the sedimentation tank 12 will gradually drop. At this time, the driving component will drive the lightweight plate 131 to drop as well, so that the height of the baffle can be adjusted, which makes it easier for the upper layer of mud liquid in the sedimentation tank 12 to flow back into the mud tank 11, increasing the recycling rate of mud.

[0027] like Figure 1 and Figure 2 The lightweight plate 131 has upward-extending extension rods 132 on both its left and right sides, and each extension rod 132 has a slider 133 at its upper end that slides on the wall of the sedimentation tank 12. The wall of the sedimentation tank 12 has a groove 134 for the slider 133 to slide. At this time, the groove 134 is above the liquid surface in the sedimentation tank 12. The arrangement of the extension rods 132 and the slider 133 facilitates the upward and downward sliding of the lightweight plate 131 and reduces the influence of the mud in the sedimentation tank 12 on the slider 133 in the groove 134.

[0028] like Figure 1 and Figure 2 The driving component includes several floating balls 14 disposed on the upper end of the lightweight plate 131, each floating ball 14 being located on the liquid surface of the sedimentation tank 12. At this time, the floating balls 14 rise as the liquid surface of the sedimentation tank 12 rises and falls as it falls, thereby causing the buoyancy of the floating balls 14 to drive the lightweight plate 131 to rise or fall.

[0029] like Figure 1 and Figure 2 The lightweight plate 131 has several hollow plastic float rods 141 extending towards the sedimentation tank 12 at its upper end, and each float ball 14 is fixed to the float rod 141. The float rods 141 increase the buoyancy provided to the lightweight plate 131 and also facilitate the installation of the float balls 14.

[0030] like Figure 3Alternatively, the driving component includes an ultrasonic level sensor (not shown in the figure) installed on the inner wall of the sedimentation tank 12 and located above the liquid surface of the sedimentation tank 12. Vertical fixed rods 15 are provided on the upper wall of the sedimentation tank 12, and a crossbar 151 is provided between the two fixed rods 15. The crossbar 151 is located above the lightweight plate 131, and a power component is provided on the crossbar 151 to drive the slider 133 to move in the slide groove 134.

[0031] like Figure 3 The power components include two horizontally opposite rotating rods 152 positioned in the middle of the crossbar 151. One of the rotating rods 152 is coaxially driven to rotate by a motor fixed to the crossbar 151. At this time, the motor and the rotating rod 152 are located on opposite sides of the crossbar 151. Gears 153 are coaxially fixedly connected to both rotating rods 152, and the two gears 153 mesh with each other. Each of the two sliders 133 has a pull rope 154 at its upper end. Both ends of the crossbar 151 are rotatably connected to steering wheels 155, which extend the pull ropes 154 from vertical to horizontal. The ends of the two pull ropes 154 away from the sliders 133 pass around the steering wheels 155 and are wound around the two rotating rods 152 respectively. The motor is a servo motor.

[0032] like Figure 3 When the motor drives one of the rotating rods 152 to rotate, the two gears 153 mesh with each other, causing them to rotate in opposite directions. This, in turn, causes the two rotating rods 152 to rotate in opposite directions. The two pull ropes 154 that pull the two sliders 133 are wound around the two rotating rods 152 respectively. This allows the rotating rods 152 to simultaneously wind around or release the two pull ropes 154, thus facilitating the simultaneous rise or fall of the two sliders 133, and consequently, the up-and-down movement of the lightweight plate 131. Specifically: When the ultrasonic level sensor detects a drop in the liquid level of the sedimentation tank 12, it controls the motor to rotate, causing the two pull ropes 154 to be released from the two rotating rods 152, facilitating the descent of the lightweight plate 131. When the ultrasonic level sensor detects a rise in the liquid level of the sedimentation tank 12, it controls the motor to reverse, causing the two pull ropes 154 to wind around the two rotating rods 152, facilitating the rise of the lightweight plate 131. There is a gap between the two rotating rods 152 to facilitate the winding of the pull ropes 154.

[0033] like Figure 1 The vertical plate 13 has several triangular prisms 16 distributed along the height of the vertical plate 13 on one side facing the lightweight plate 131. The triangular prisms 16 are spaced apart on the vertical plate 13, and the lightweight plate 131 has a sliding groove 161 for the triangular prisms 16 to slide up and down. In this case, the triangular prisms 16 can guide the up and down movement of the lightweight plate 131.

[0034] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A self-mixing mud tank for bored piles, characterized in that, The system includes a pool body (1) and a baffle plate disposed within the pool body (1) to divide the pool body (1) into a mud pool (11) and a sedimentation pool (12). The baffle plate includes a vertical plate (13) disposed within the pool body (1) and a lightweight plastic plate (131) located on the side of the vertical plate (13) facing the sedimentation pool (12). The bottom and left and right sides of the vertical plate (13) are fixed to the inner wall of the pool body (1). The left and right sides of the lightweight plate (131) are slidably connected to the pool wall of the sedimentation pool (12). The sedimentation pool (12) is provided with a drive component that causes the lightweight plate (131) to rise and fall with the liquid level in the sedimentation pool (12).

2. The self-mixing mud tank for bored piles as described in claim 1, characterized in that, The lightweight plate (131) has upward-extending extension rods (132) on both the left and right sides, and the upper ends of the two extension rods (132) are provided with sliders (133) that slide on the wall of the sedimentation tank (12). The wall of the sedimentation tank (12) is provided with a sliding groove (134) for the sliders (133) to slide.

3. The self-mixing mud tank for bored piles as described in claim 2, characterized in that, The driving component includes several floating balls (14) disposed on the upper end of the lightweight plate (131), each of the floating balls (14) being located on the liquid surface of the sedimentation tank (12).

4. The self-mixing mud tank for bored piles as described in claim 3, characterized in that, The upper end of the lightweight plate (131) is provided with several hollow plastic floating rods (141) extending toward the sedimentation tank (12), and each of the floating balls (14) is fixed on the floating rods (141).

5. The self-mixing mud tank for bored piles as described in claim 2, characterized in that, The chute (134) is located above the liquid surface of the sedimentation tank (12). The driving component includes an ultrasonic level sensor installed on the inner wall of the sedimentation tank (12) and located above the liquid surface of the sedimentation tank (12). The sedimentation tank (12) is provided with vertical fixed rods (15) on the upper wall opposite to each other. A crossbar (151) is provided between the two fixed rods (15). The crossbar (151) is provided with a power component that drives the slider (133) to move in the chute (134).

6. The self-mixing mud pit for bored piles as described in claim 5, characterized in that, The power component includes two horizontally opposite rotating rods (152) located in the middle of the crossbar (151). One of the rotating rods (152) is driven to rotate coaxially by a motor fixed on the crossbar (151). Gears (153) are coaxially fixedly connected to both rotating rods (152), and the two gears (153) mesh with each other. Pull ropes (154) are provided at the upper ends of both sliders (133). Both ends of the crossbar (151) are rotatably connected to steering wheels (155) that allow the pull ropes (154) to extend from the vertical to the horizontal direction. The ends of the two pull ropes (154) away from the sliders (133) pass around the steering wheels (155) and are respectively wound around the two rotating rods (152).

7. The self-mixing mud tank for bored piles as described in claim 6, characterized in that, The motor is a servo motor.

8. The self-mixing mud pit for bored piles as described in claim 2, characterized in that, The vertical plate (13) has a plurality of triangular prisms (16) distributed along the height direction of the vertical plate (13) on one side facing the lightweight plate (131). Each of the triangular prisms (16) is spaced apart on the vertical plate (13), and the lightweight plate (131) has a moving groove (161) for the triangular prisms (16) to slide up and down.