Foamed concrete diversion assembly and pouring device

Abstract

The utility model relates to the technical field of concrete construction equipment, and particularly relates to a foamed concrete flow guide assembly and pouring device, the flow guide assembly includes the flow guide pipe, the flow guide assembly still includes the flow guide vane in the flow guide pipe, the flow guide vane is helical, and the flow guide vane extends from the flow guide pipe entrance end to the export end, installs the spiral flow guide vane in the flow guide pipe to reduce the flow velocity of foamed concrete to reduce the impact force, reduces the damage to the bubble.

Description

Technical Field

[0001] This utility model relates to the technical field of concrete construction equipment, and in particular to a foamed concrete diversion component and pouring device. Background Technology

[0002] In road construction, foamed concrete is widely used in backfilling projects due to its lightweight, heat insulation, and sound insulation properties. Pump trucks are commonly used for conveying and pouring concrete during backfilling operations. A guide pipe is usually installed at the end of the pump truck, which plays a crucial role in discharging the foamed concrete from the pump truck and directing it to the construction area.

[0003] During actual pouring operations, the diversion pipe is often slightly tilted or vertical to adapt to different construction scenarios. This tilted or vertical setting significantly increases the flow velocity of the foamed concrete within the diversion pipe. This is mainly due to two factors: First, the pump truck's delivery pressure provides initial momentum for the flow of the foamed concrete, propelling it forward within the diversion pipe. Second, with the diversion pipe tilted or vertical, gravity further accelerates the flow of the foamed concrete. Under these dual effects, the flow velocity of the foamed concrete within the diversion pipe becomes excessive, leading to increased impact force. Excessive impact force can easily cause air bubbles to burst, resulting in density stratification of the foamed concrete, reducing its performance, and affecting the backfill quality. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a foamed concrete flow guiding component and a pouring device, in which spiral guide blades are installed inside the flow guiding pipe to reduce the flow speed of the foamed concrete, thereby reducing the impact force and minimizing damage to the air bubbles.

[0005] The present invention relates to a foamed concrete flow guiding component, which includes a flow guiding pipe and a flow guiding blade located inside the flow guiding pipe. The flow guiding blade is spiral in shape and extends from the inlet end to the outlet end of the flow guiding pipe.

[0006] As a preferred embodiment of this utility model, the flow guiding component also includes a pressure sensor disposed on the flow guiding pipe for monitoring the pressure of the foamed concrete.

[0007] As a preferred embodiment of this utility model, the pressure sensor is disposed at the outlet end of the guide tube.

[0008] As a preferred embodiment of this utility model, the guide tube is made of a lightweight material.

[0009] As a preferred embodiment of this utility model, the outlet end is funnel-shaped.

[0010] As a preferred embodiment of this utility model, a splash guard is provided at the outlet end.

[0011] As a preferred embodiment of this utility model, the splash guard is detachably connected to the outlet end.

[0012] The present invention relates to a foamed concrete pouring device, which includes a pump truck, and the aforementioned flow guiding component is disposed at the output end of the pump truck.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: the spiral guide vanes extend from the inlet end to the outlet end of the guide pipe, which can guide the foamed concrete to flow along the spiral path in the guide pipe. On the one hand, the spiral structure can disperse the impact force brought by the pump truck pressure and gravity, and reduce the problem of excessive flow velocity. On the other hand, the spiral flow can make the internal force of the foamed concrete more uniform, reduce the violent impact caused by excessive flow velocity, thereby reducing the probability of bubble rupture, avoiding density segregation, ensuring the performance of foamed concrete, and improving the backfill quality. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the foamed concrete flow guiding component of this utility model;

[0015] Figure 2 yes Figure 1 A bottom view;

[0016] Figure 3 yes Figure 1 A schematic diagram of the structure after the concealed portion of the guide tube is shown.

[0017] Figure 4 This is a schematic diagram of the structure of the foamed concrete pouring device of this utility model;

[0018] Figure 5 yes Figure 4 Enlarged view of part A in the middle;

[0019] The attached diagram is labeled as follows: 1. Guide pipe; 2. Guide vane; 3. Pressure sensor; 4. Splash guard; 5. Pump truck. Detailed Implementation

[0020] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0021] Example

[0022] Reference Figures 1-3This embodiment provides a foamed concrete flow guiding component, which includes a flow guiding pipe 1; the flow guiding component also includes a flow guiding blade 2 located inside the flow guiding pipe 1. The flow guiding blade 2 is spiral in shape and extends from the inlet end to the outlet end of the flow guiding pipe 1. More specifically, the flow guiding blade 2 is arranged along the axial direction of the flow guiding pipe 1, and the outer end of the flow guiding blade 2 is in close contact with the inner wall of the flow guiding pipe 1, so that a spiral flow channel is formed inside the flow guiding pipe 1.

[0023] The specific working process of the flow guiding component provided by this utility model is as follows: the spiral guide blade 2 extends from the inlet end of the flow guiding pipe 1 to the outlet end, which can guide the foamed concrete to flow along the spiral path in the flow guiding pipe 1. On the one hand, the spiral structure can disperse the impact force brought by the pressure and gravity of the pump truck 5, and reduce the problem of excessive flow velocity. On the other hand, the spiral flow can make the internal force of the foamed concrete more uniform, reduce the violent impact caused by excessive flow velocity, thereby reducing the probability of bubble rupture, avoiding density stratification, ensuring the performance of foamed concrete, and improving the backfill quality.

[0024] In some embodiments of this utility model, reference is made to Figure 1 The flow guiding assembly also includes a pressure sensor 3 installed on the flow guiding pipe 1 to monitor the pressure of the foamed concrete. More specifically, the pressure sensor 3 can be a piezoelectric or strain gauge sensor, with its sensing element in contact with the inner wall of the flow guiding pipe 1 to ensure direct sensing of the pressure generated during the flow of foamed concrete. The pressure sensor 3 is connected to an external monitoring terminal via wires. The monitoring terminal can display the pressure value inside the flow guiding pipe 1 in real time. When the pressure exceeds a preset threshold, it can issue an alarm prompt so that the operator can adjust the delivery pressure of the pump truck 5 in time to avoid further aggravation of the bubble rupture problem due to excessive pressure.

[0025] In some embodiments of this utility model, reference is made to Figure 1 Pressure sensor 3 is located at the outlet end of guide pipe 1. More specifically, pressure sensor 3 is located at the outlet end of guide pipe 1 because the pressure at the outlet end can directly reflect the pressure of the foamed concrete when it is about to be discharged from guide pipe 1, which is closer to the state of the foamed concrete before it enters the construction area. During installation, a mounting hole adapted to pressure sensor 3 is opened on the pipe wall at the outlet end of guide pipe 1. The sensing part of pressure sensor 3 extends into the pipe through the mounting hole and comes into direct contact with the foamed concrete. Its exterior is fixed and sealed to the pipe wall by a sealing element to prevent leakage of foamed concrete and ensure the accuracy of pressure monitoring and the sealing of guide pipe 1.

[0026] In some embodiments of this utility model, the guide pipe 1 is made of a lightweight material. More specifically, the guide pipe 1 can be made of high-strength plastics, aluminum alloys, or other materials. These materials have low density, which can effectively reduce the overall weight of the guide assembly, reduce the load on the end of the pump truck 5, and facilitate operators to flexibly adjust the tilt angle or vertical position of the guide pipe 1 according to construction needs. At the same time, the selected lightweight material must have certain compressive strength and wear resistance to withstand the pressure and friction generated when the foamed concrete flows inside the pipe, ensuring the service life of the guide pipe 1.

[0027] In some embodiments of this utility model, reference is made to Figures 1-2 The outlet end is funnel-shaped. More specifically, the outlet end of the guide pipe 1 is funnel-shaped, meaning that the cross-sectional area of ​​the outlet end gradually increases from the end connected to the main body of the guide pipe 1 towards the end. This funnel-shaped structure can further buffer and reduce the flow velocity of the foamed concrete when it flows out of the guide pipe 1, reducing the impact force when the foamed concrete is output. At the same time, the funnel-shaped outlet can expand the output range of the foamed concrete, allowing the foamed concrete to be more evenly distributed in the construction area during pouring, avoiding uneven density caused by local accumulation.

[0028] In some embodiments of this utility model, reference is made to Figure 2 A splash guard 4 is installed at the outlet end. More specifically, the shape of the splash guard 4 is adapted to the cross-section of the flared outlet end, and the edge of the splash guard 4 is connected to the outer wall of the outlet end. The splash guard 4 is vertical or constricted, which can effectively block the splashing phenomenon caused by the impact when the foamed concrete is output, prevent the foamed concrete from splashing into non-construction areas, causing material waste and construction environment pollution, and at the same time reduce the interference of splashed foamed concrete to operators.

[0029] In some embodiments of this utility model, the splash guard 4 is detachably connected to the outlet end. More specifically, the two can be connected by snap-fit, bolt, etc. This detachable connection facilitates quick maintenance and replacement when the splash guard 4 is worn or needs to be replaced with a different specification of guard, improving the flexibility and convenience of the flow guiding component.

[0030] This utility model relates to a foamed concrete pouring device, with reference to... Figures 4-5The concrete pump truck 5 includes a pump truck 5, with the aforementioned flow guiding assembly located at the output end of the pump truck 5. More specifically, the flow guiding pipe 1 is fixed to the output end of the pump truck 5's delivery pipe via a flange or other device. The pump truck 5 is a machine that uses pressure to continuously transport concrete along a pipeline. It consists of a pump body and a delivery pipe, and can be classified into piston type, extrusion type, and hydraulic diaphragm type according to its structural form. The pump body is mounted on a truck chassis and equipped with a telescopic or bendable placing boom, thus forming the pump truck 5. The concrete pump truck 5 transmits the engine's power to the hydraulic pump unit or rear axle through a power transfer box. The hydraulic pump drives the piston to operate the concrete pump. Using the placing boom and delivery pipe on the pump truck 5, the concrete is transported to a certain height and distance. To cooperate with the pressure sensor 3, a controller is also installed on the pump truck 5. The controller receives the signal from the pressure sensor 3 and compares it with a preset pressure threshold. When the pressure exceeds the threshold, the controller controls the pump truck 5 to reduce the pumping speed; when the pressure is below the threshold, the pumping speed is increased, thereby achieving automatic adjustment of the pumping speed.

[0031] It should be noted that the above embodiments are only used to illustrate the technical solution 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 solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A foamed concrete flow guide assembly, the flow guide assembly comprising a flow guide pipe (1); characterized in that, The flow guiding assembly also includes a flow guiding blade (2) located inside the flow guiding pipe (1). The flow guiding blade (2) is spiral-shaped and extends from the inlet end of the flow guiding pipe (1) to the outlet end. The flow guiding assembly also includes a pressure sensor (3) disposed on the flow guiding pipe (1) for monitoring the pressure of the foamed concrete.

2. The foamed concrete flow guide assembly of claim 1, wherein, The pressure sensor (3) is located at the outlet end of the guide pipe (1).

3. The foamed concrete flow guiding component as described in claim 1, characterized in that, The guide tube (1) is made of lightweight material.

4. The foamed concrete flow guiding component as described in claim 1, characterized in that, The outlet end is funnel-shaped.

5. The foamed concrete flow guiding component according to any one of claims 1-4, characterized in that, A splash guard (4) is provided at the outlet end.

6. The foamed concrete flow guiding component as described in claim 5, characterized in that, The splash guard (4) is detachably connected to the outlet end.

7. A foamed concrete pouring device, characterized in that, The pump truck (5) includes a flow guiding assembly as described in any one of claims 1-4, which is disposed at the output end of the pump truck (5).

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