Lining concrete pouring liquid level monitoring device

Abstract

The utility model discloses a lining concrete pouring liquid level monitoring device. The lining concrete pouring liquid level monitoring device comprises first liquid level monitoring assemblies arranged on the two sides of a formwork and a second liquid level monitoring assembly arranged on a vault. The first liquid level monitoring assembly comprises an installation base, an ultrasonic sensor installed on the installation base and a supporting structure arranged in the installation base. The second liquid level monitoring assembly comprises a liquid level relay and two sleeves penetrating through the two different grouting pipes to the highest position of the arch crown, wires are connected into the two sleeves respectively, and the wires are connected to the liquid level relay. The liquid level detection device is arranged to detect the pouring liquid level in the concrete pouring process, and the pouring quality of concrete is guaranteed.

Description

A device for monitoring the liquid level of lining concrete pouring Technical Field

[0001] This utility model belongs to the field of infrastructure construction technology, and specifically relates to a device for monitoring the liquid level of lining concrete pouring. Background Technology

[0002] Tunnel lining refers to a permanent support structure constructed along the perimeter of the tunnel using materials such as reinforced concrete to prevent deformation or collapse of the surrounding rock.

[0003] In existing technologies, the support generally includes initial support: constructed immediately after tunnel excavation, mainly serving as temporary support, including anchor bolts, shotcrete, steel arches, etc. Secondary lining: constructed after the initial support has stabilized, serving as a permanent load-bearing structure, typically using cast-in-place concrete.

[0004] Cast-in-place concrete is a process in tunnel construction where a grouting template is first laid, and then grout is injected between the template and the tunnel roof. However, during grouting, two problems arise: firstly, excessive grouting can easily damage the template; secondly, unevenness of the initial support surface of the tunnel arch is common. When the lining concrete is poured to the arch, the formwork obstructs the view, making it impossible to determine whether the concrete has filled the depressions. If the concrete does not fill the depressions, cavities will form in the arch, preventing the lining structure from fitting tightly to the initial support surface. This results in poor tunnel arch quality. Furthermore, the presence of cavities can lead to insufficient lining thickness, compromising structural durability and posing safety hazards for later use. Summary of the Invention

[0005] The purpose of this utility model is to provide a liquid level monitoring device for lining concrete pouring. By setting up a liquid level detection device, the pouring liquid level of the concrete is detected during the pouring process, thereby ensuring the quality of the concrete pouring.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0007] A liquid level monitoring device for lining concrete pouring includes a first liquid level monitoring component installed on both sides of the template and a second liquid level monitoring component installed on the arch. The first liquid level monitoring component includes a mounting base, an ultrasonic sensor installed on the mounting base, and a support structure installed inside the mounting base. The second liquid level monitoring component includes a liquid level relay, which passes through two different grouting pipes to two sleeves at the highest point of the arch. The two sleeves are respectively connected to wires, and the wires are respectively connected to the liquid level relay.

[0008] Furthermore, the second liquid level monitoring component also includes a buzzer, which is electrically connected to the liquid level relay.

[0009] Furthermore, the mounting base includes a base plate, a sensor mounting frame mounted on the base plate, and a support structure connected between the mounting frame and the ultrasonic sensor.

[0010] Furthermore, the base plate is welded onto the template.

[0011] Furthermore, the support structure includes a fixed piston cylinder, a piston rod connected inside the fixed piston cylinder, and a compression spring connected between the fixed piston cylinder and the piston rod.

[0012] Furthermore, the fixed piston cylinder is filled with damping oil.

[0013] Compared with existing technologies, the advantages of this invention are as follows: First, this invention has a simple structure and is easy to implement. During concrete pouring, a first liquid level monitoring component is installed on both sides of the pouring mold to monitor the uniformity of the bottom pour. An ultrasonic sensor emits high-frequency sound waves (typically 20kHz~200kHz) towards the liquid surface at the arch foot during pouring. The sound waves are reflected by the liquid surface and captured by a receiver. By calculating the time difference between transmission and reception, combined with the speed of sound, the liquid level height is calculated. Second, a liquid level relay is installed at the arch crown. Concrete is poured to the electrodes of the liquid level relay, and the opening and closing of the relay controls a buzzer to provide an alert. Attached Figure Description

[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 is a structural schematic diagram of the lining concrete pouring liquid level monitoring device provided by this utility model.

[0016] Figure 2 is a partial structural schematic diagram of the lining concrete pouring liquid level monitoring device provided by this utility model.

[0017] Figure 3 is a schematic diagram of the first liquid level monitoring component of the lining concrete pouring liquid level monitoring device provided by this utility model.

[0018] Figure label:

[0019] 1. Template; 2. First liquid level monitoring component; 3. Second liquid level monitoring component; 4. Sleeve; 5. Liquid level relay; 6. Buzzer; 7. Base plate; 8. Ultrasonic sensor; 9. Support structure. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, 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.

[0021] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0022] In the description of this utility model, it should be noted that if terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" appear to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use, they are only for the convenience of describing this utility model and 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, and therefore should not be construed as a limitation of this utility model.

[0023] Furthermore, the terms "first," "second," and "third" are used only for distinguishing descriptions and should not be interpreted as indicating or implying relative importance.

[0024] Furthermore, the use of terms such as "horizontal," "vertical," and "suspended" does not imply that the component must be absolutely horizontal or suspended, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0025] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of 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.

[0026] It should be noted that, where there is no conflict, the features in the embodiments of this utility model can be combined with each other.

[0027] As shown in Figures 1-3, a liquid level monitoring device for lining concrete pouring includes a first liquid level monitoring component 2 installed on both sides of the template 1 and a second liquid level monitoring component 3 installed on the arch. The first liquid level monitoring component 2 includes a mounting base, an ultrasonic sensor 8 installed on the mounting base, and a support structure 9 installed inside the mounting base. The second liquid level monitoring component 3 includes a liquid level relay 5, which passes through two different grouting pipes to two sleeves 4 at the highest point of the arch. The two sleeves 4 are respectively connected to wires, and the wires are respectively connected to the liquid level relay 5.

[0028] Compared to existing technologies, current technologies for monitoring the level of liquids (such as concrete, molten metal, and chemical raw materials) during concrete pouring are crucial for ensuring that the liquid level meets requirements in industries, construction, and manufacturing. The primary function is to monitor the concrete filling height within the formwork 1 to prevent overflow or insufficient filling. In concrete pouring, ultrasonic sensors 8 are widely used for real-time liquid level monitoring due to their non-contact nature, ease of installation, and low cost. The sensor emits high-frequency sound waves (typically 20kHz~200kHz) towards the concrete surface. These sound waves are reflected by the liquid surface and captured by a receiver. The liquid level is calculated by calculating the time difference between transmission and reception, combined with the speed of sound: Liquid level = (Speed ​​of sound × Time difference) / 2. However, ultrasonic sensors 8 require vertical installation at the top, facing the concrete surface directly, avoiding obstructions from formwork 1, reinforcing bars, etc. If vertical installation is not possible, the measurement value must be corrected based on the tilt angle. Furthermore, it cannot effectively monitor the liquid level at the arch crown. In this invention, a liquid level relay 5 is installed on the arch top in addition to the ultrasonic sensor 8. The liquid level relay 5 is electrode type, and the concrete liquid is conductive. After being poured to the arch top, the electrodes of the liquid level relay 5 are connected, and a buzzer 6 connected to it provides a prompt.

[0029] The second liquid level monitoring component 3 also includes a buzzer 6, which is electrically connected to the liquid level relay 5. Specifically, the output terminal of the liquid level relay 5 is connected to the power supply of the buzzer 6, and the on / off state of the buzzer 6 is controlled by whether the high-level electrode set on the dome is connected or not. The overall principle is simple.

[0030] The mounting base includes a base plate 7, a sensor mounting frame mounted on the base plate 7, and a support structure 9 connecting the mounting frame and the ultrasonic sensor 8. The base plate 7 is welded to the template 1. The support structure 9 includes a fixed piston cylinder, a piston rod connected inside the fixed piston cylinder, and a compression spring connecting the fixed piston cylinder and the piston rod. The fixed piston cylinder is filled with damping oil. A well-designed mounting base secures the ultrasonic sensor 8, and the support structure 9 prevents the ultrasonic sensor 8 from being directly impacted and falling during concrete pouring.

[0031] In practical use, the liquid level height of the two arch feet is obtained by the distance sensing of the liquid surface by the ultrasonic sensor 8. When the liquid level of the two arch feet is uneven, it is easy to cause problems such as uneven force on the pouring template 1, and timely adjustment is made. When the liquid level height exceeds the relay wire position of the arch top, the on / off state of the liquid level relay 5 is triggered and changed, and connected to the buzzer 6. The buzzer 6 prompts to determine that the pouring at the arch top has been completed. If the effective concrete is not filled, a cavity will form in the arch top, and the lining structure will not be able to fit tightly with the initial support surface, etc. The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit it. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A device for monitoring the liquid level of lining concrete pouring, characterized in that: It includes a first liquid level monitoring component (2) set on both sides of the template (1) and a second liquid level monitoring component (3) set on the arch. The first liquid level monitoring component (2) includes a mounting base, an ultrasonic sensor (8) installed on the mounting base, and a support structure (9) set in the mounting base. The second liquid level monitoring component (3) includes a liquid level relay (5), which passes through two different grouting pipes to two sleeves (4) at the highest point of the arch. The two sleeves (4) are connected to wires, and the wires are connected to the liquid level relay (5).

2. The lining concrete placement level monitoring apparatus of claim 1, wherein: The second liquid level monitoring component (3) also includes a buzzer (6), and the buzzer (6) is electrically connected to the liquid level relay (5).

3. The lining concrete placement level monitoring apparatus of claim 1, wherein: The mounting base includes a base plate (7), a sensor mounting frame mounted on the base plate (7), and a support structure (9) connected between the mounting frame and the ultrasonic sensor (8).

4. The lining concrete pouring level monitoring device according to claim 3, characterized in that: The base plate (7) is welded onto the template (1).

5. The lining concrete placement level monitoring apparatus of claim 3, wherein: The support structure (9) includes a fixed piston cylinder, a piston rod connected inside the fixed piston cylinder, and a compression spring connected between the fixed piston cylinder and the piston rod.

6. The lining concrete placement level monitoring apparatus of claim 5, wherein: The fixed piston cylinder is filled with damping oil.

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