Automatic measuring device for elevation of underwater poured concrete

Abstract

The utility model discloses an automatic measuring device for the elevation of underwater poured concrete, which belongs to the field of civil engineering and comprises a cylinder barrel, a piston rod, a reciprocating driving structure and a pressure sensor. The device is installed on the winding device such as a winch, the displacement sensor is installed on the winding device and used for detecting the winding ascending and descending distance, during work, the power motor in the reciprocating driving structure conducts forward and reverse rotation actions, the power motor acts to drive the driving screw to rotate to drive the piston rod of the internal thread to move, and the winding device is driven to rotate. The piston rod can be of an oval or polygonal rod-shaped structure, the piston rod reciprocates up and down in the cylinder barrel, when the lower end of the cylinder barrel makes contact with a concrete interface, rising damping of the piston rod in the cylinder barrel changes, then the pressure sensor senses that the pressure value changes, and then the position of the concrete interface is judged. And the elevation can be judged conveniently.

Description

Technical Field

[0001] This utility model relates to the field of civil engineering, and in particular to an automatic measurement device for the elevation of underwater concrete pouring. Background Technology

[0002] With the rapid development of urbanization in my country, the development and utilization of underground space is increasing, leading to a rise in foundation pits, bridges, and other infrastructure projects. These infrastructure projects often employ bored piles. However, during underwater concrete pouring, the design elevation of the pile top is frequently below ground level, and the presence of mud and slurry during pouring makes it difficult to accurately determine the true elevation of the concrete. In practice, manual string lines are often used for estimation. This method is time-consuming, slowing down the project; it also makes it difficult to accurately measure the concrete elevation, resulting in concrete pouring exceeding the design elevation, causing significant waste, and sometimes even under-pouring, severely impacting project quality.

[0003] In the prior art, patent publication number CN112392078A discloses an automatic measurement device and method for underwater concrete pouring elevation. The device includes a pressure sensor, a cable, and an automatic lift. The lift includes a housing, a motor, a motor holder, a smart switch, a power switch, and a rechargeable battery. The motor is fixed in the housing by the motor holder; one end of the motor shaft extends horizontally out of the housing; the cable is wound around the motor shaft, one end of which is connected to the smart switch, and the other end is suspended below the shaft and connected to the pressure sensor. The motor and the rechargeable battery are connected to the power switch and the smart switch via wires; the signal emitted by the pressure sensor controls the motor through the smart switch. This invention provides a device that can accurately measure the elevation of underwater concrete, and it has advantages such as simple operation, strong anti-interference capability, high measurement accuracy, and good automation performance.

[0004] Existing technologies use a winding device combined with a pressure sensor to detect elevation by measuring immersion pressure. However, this method requires the sensor itself to be submerged in concrete grout, and during use, concrete adheres to the sensor, affecting its sensing accuracy. Therefore, an automatic underwater concrete pouring elevation measurement device is needed to solve these problems. Utility Model Content

[0005] The purpose of this invention is to solve the problems mentioned in the background art by designing an automatic measurement device for underwater concrete pouring elevation.

[0006] To achieve the above objectives, the technical solution of this utility model is an automatic measurement device for underwater concrete pouring elevation, comprising a cylinder, a piston rod, a reciprocating drive structure, and a pressure sensor. The piston rod is slidably installed inside the cylinder, and the piston rod is a rod-shaped structure with a piston structure located in the internal region of the cylinder. The reciprocating drive structure is installed on the cylinder, and the driving end of the reciprocating drive structure is connected to the piston rod. The pressure sensor is installed on the reciprocating drive structure, and the reciprocating drive structure and the cylinder are slidably connected vertically. The pressure sensor is installed between the cylinder and the reciprocating drive structure.

[0007] Furthermore, the reciprocating drive structure includes a sliding rod, a power motor, a drive screw, and an internal thread. The two sliding rods are slidably inserted into both sides of the cylinder. The power motor is fixedly installed at the upper end of the sliding rod, and the drive screw is installed at the output end of the power motor. The piston rod has an internal thread, and the drive screw and the internal thread mesh. The two ends of the pressure sensor are connected to the power motor and the cylinder, respectively.

[0008] Furthermore, a protective tube is installed on the cylinder, which is mounted on the upper surface of the piston rod outer cylinder. The lower end of the pressure sensor is connected to the protective tube to achieve an indirect connection with the cylinder. A flexible protective sleeve is installed on the upper end of the protective tube, and the upper end of the flexible protective sleeve is connected to the lower end of the power motor.

[0009] Furthermore, the flexible protective cylinder is a flexible sleeve structure with a wavy outer surface.

[0010] Furthermore, a lifting lug is installed on the top of the power motor.

[0011] Beneficial effects:

[0012] This invention provides an automatic elevation measurement device for underwater concrete pouring, which has the following advantages: Through its structural design, the device is mounted on a winding device, such as a winch. A displacement sensor is installed on the winding device to detect the distance of the winding's ascent and descent. During operation, a motor in the reciprocating drive structure rotates in both directions, driving a drive screw that in turn moves a piston rod with an internal thread. The piston rod can be elliptical or polygonal. The piston rod reciprocates within a cylinder. When the lower end of the cylinder contacts the concrete interface, the upward damping of the piston rod changes, causing a change in pressure value detected by the pressure sensor. This change allows for the determination of the concrete interface position and thus, easier elevation assessment. Because the lower end of the device is where the cylinder contacts the concrete interface, the concrete does not directly cover the pressure sensor, thus solving the problems existing in the prior art. Attached Figure Description

[0013] Figure 1This is a schematic diagram of the structure of the automatic underwater concrete pouring elevation measuring device described in this utility model;

[0014] Figure 2 This is an exploded structural diagram of the automatic underwater concrete pouring elevation measuring device described in this utility model;

[0015] Figure 3 This is a schematic diagram of the underwater concrete pouring elevation automatic measuring device from an upward angle, as described in this utility model.

[0016] In the diagram, 1 is the cylinder; 2 is the piston rod; 3 is the pressure sensor; 4 is the slide rod; 5 is the power motor; 6 is the drive screw; 7 is the internal thread; 8 is the protective tube; and 9 is the flexible protective sleeve. Detailed Implementation

[0017] 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.

[0018] In the description of this utility model, it should be noted that the terms "upper / lower end," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0019] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "set / set up," "sleeve," "connection," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0020] Please see Figure 1-3This utility model provides a technical solution: an automatic measuring device for underwater concrete pouring elevation, including a cylinder 1, a piston rod 2, a reciprocating drive structure, and a pressure sensor 3. The piston rod 2 is slidably installed inside the cylinder 1. The piston rod 2 is a rod-shaped structure with a piston structure located in the internal region of the cylinder 1. The reciprocating drive structure is installed on the cylinder 1, and the driving end of the reciprocating drive structure is connected to the piston rod 2. The pressure sensor 3 is installed on the reciprocating drive structure. The reciprocating drive structure and the cylinder 1 are slidably connected. The pressure sensor 3 is installed between the cylinder 1 and the reciprocating drive structure. The piston rod 2 can be an elliptical rod to prevent the piston rod 2 from rotating.

[0021] In this utility model, the reciprocating drive structure includes a slide rod 4, a power motor 5, a drive screw 6, and an internal thread 7. The two slide rods 4 are slidably inserted on both sides of the cylinder 1. The power motor 5 is fixedly installed on the upper end of the slide rod 4. The drive screw 6 is installed on the output end of the power motor 5. The piston rod 2 has an internal thread 7. The drive screw 6 and the internal thread 7 mesh. The pressure sensor 3 is connected to the power motor 5 and the cylinder 1 at both ends. The power motor 5 drives the drive screw 6 to rotate, which in turn drives the internal thread 7 and the piston rod 2 to reciprocate. The slide rod 4 is used to limit the angle of the power motor 5 to prevent the housing of the power motor 5 from rotating under force.

[0022] In this invention, a protective tube 8 is installed on the cylinder 1. The protective tube 8 is installed on the upper surface of the cylinder 1 outside the piston rod 2. The lower end of the pressure sensor 3 is connected to the protective tube 8 to achieve an indirect connection with the cylinder 1. A flexible protective cylinder 9 is installed on the upper end of the protective tube 8. The upper end of the flexible protective cylinder 9 is connected to the lower end of the power motor 5. The drive screw 6 is protected by the protective tube 8 and the flexible protective cylinder 9 to prevent external debris from directly contacting the drive screw 6. The flexible protective cylinder 9 realizes a flexible connection between the protective tube 8 and the power motor 5, which facilitates the pressure sensor 3 to collect pressure data.

[0023] In this invention, the flexible protective cylinder 9 is a flexible sleeve structure with a wavy outer surface, which facilitates deformation.

[0024] In this invention, the top of the power motor 5 is equipped with a lifting lug, which facilitates connection with a winding device such as a winch.

[0025] Those skilled in the art should connect all electrical components and their compatible power supplies in this case via wires, and should select appropriate controllers according to actual conditions to meet control requirements. The specific connection and control sequence should refer to the working principle described below, where the electrical connections between the various electrical components are completed in sequence. The detailed connection methods are well-known technologies in the field. The following mainly introduces the working principle and process, and will not describe the electrical control further.

[0026] In this implementation plan:

[0027] In use, this device is installed on a winding device, such as a winch. The winding device is equipped with a displacement sensor to detect the winding rise and fall distance. During operation, the power motor 5 in the reciprocating drive structure performs forward and reverse rotation. The power motor 5 drives the drive screw 6 to rotate, which in turn drives the piston rod 2 with the internal thread 7 to move. The piston rod 2 can be an elliptical or polygonal rod structure. The piston rod 2 moves up and down reciprocally inside the cylinder 1. When the lower end of the cylinder 1 contacts the concrete interface, the upward damping of the piston rod 2 inside the cylinder 1 changes. At this time, the pressure sensor 3 senses the change in pressure value, thereby determining the position of the concrete interface and facilitating the determination of the elevation.

[0028] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An automatic measuring device for underwater cast-in-place concrete elevation, comprising a cylinder (1), a piston rod (2), a reciprocating drive structure, a pressure sensor (3), characterized in that, The cylinder (1) is slidably installed with a piston rod (2), the piston rod (2) is a rod structure with a piston structure in the internal area of the cylinder (1), a reciprocating driving structure is installed on the cylinder (1), the driving end of the reciprocating driving structure is connected with the piston rod (2), a pressure sensor (3) is installed on the reciprocating driving structure, the reciprocating driving structure and the cylinder (1) are slidably connected, and the pressure sensor (3) is installed between the cylinder (1) and the reciprocating driving structure.

2. The automatic underwater concrete placement elevation measuring device according to claim 1, characterized in that, The reciprocating driving structure comprises slide rods (4), a power motor (5), a driving screw (6) and internal threads (7), two slide rods (4) are slidably inserted into the cylinder (1) on both sides, the power motor (5) is fixedly installed on the upper end of the slide rod (4), the driving screw (6) is installed on the output end of the power motor (5), the internal threads (7) are formed in the piston rod (2), the driving screw (6) and the internal threads (7) are engaged, and the pressure sensor (3) is connected with the power motor (5) and the cylinder (1) at both ends.

3. The automatic underwater concrete pour elevation measuring device of claim 2, wherein, A protective pipe (8) is installed on the cylinder (1), the protective pipe (8) is installed on the outer cylinder (1) upper surface of the piston rod (2), the lower end of the pressure sensor (3) is connected with the protective pipe (8), so as to be indirectly connected with the cylinder (1), and the upper end of the protective pipe (8) is installed with a flexible protective cylinder (9), and the upper end of the flexible protective cylinder (9) is connected with the lower end of the power motor (5).

4. The automatic underwater concrete pour elevation measuring device of claim 3, wherein, The flexible protective cylinder (9) is a flexible sleeve structure with a wavy outer surface.

5. The automatic underwater concrete pour elevation measuring device of claim 2, wherein, Lifting lugs are installed on the top of the power motor (5).

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