Concrete vertical conveying device and method for adjusting concrete vertical conveying speed

Abstract

The application belongs to the technical field of building construction, and discloses a concrete vertical conveying device and a concrete vertical conveying speed adjusting method. The concrete vertical conveying device comprises a flow guide cylinder, a speed reduction assembly, a flow speed monitoring member and a control unit. The speed reduction assembly is installed in the flow guide cylinder and comprises a support member and a speed reduction member. The support member is detachably connected to the flow guide cylinder. The speed reduction member comprises a plurality of speed reduction blades which are arranged in a circumferential direction of the support member at intervals. The speed reduction blades are rotatably arranged on the support member along the extension direction of the speed reduction blades. A plurality of spiral channels are formed on the surfaces of the speed reduction blades, and the concrete flows along the spiral channels. The flow speed monitoring member is configured to monitor the flow speed of the concrete. The control unit is configured to adjust the rotation angle of the speed reduction blades according to the flow speed monitored by the flow speed monitoring member. The concrete vertical conveying device can flexibly adjust the conveying speed of the concrete in a self-adaptive manner, reduces the risk of concrete segregation, ensures the concrete pouring quality, and improves the convenience of maintenance and repair.

Description

Technical Field

[0001] This invention relates to the field of building construction technology, and in particular to a vertical concrete conveying device and a method for adjusting the vertical concrete conveying speed. Background Technology

[0002] During construction, when concrete is vertically transported from a pump truck to the pouring surface, a tremie pipe is typically used for flow guidance. By adjusting the height of the tremie pipe, the free fall height of the concrete can be controlled, thereby regulating its falling speed, preventing aggregate and mortar separation, and ensuring uniform concrete pouring.

[0003] Currently, some concrete tremie pipes are equipped with internal buffer devices to reduce the vertical falling speed of concrete and further suppress segregation. However, these buffer devices are mostly fixed inside the pipe, making them difficult to disassemble and maintain. Furthermore, their effect on adjusting the concrete flow rate is relatively limited, resulting in a fixed deceleration effect for each section of the pipe. In addition, for pipes with integrated flow rate detection, the monitoring data cannot be linked with the buffer device for real-time control, making it impossible to dynamically adjust the falling speed based on the material state. In actual construction, the concrete falling speed still needs to be adjusted by changing the overall height of the pipe, making it impossible to flexibly control the flow rate in real time during the concrete's fall. This results in poor product applicability and versatility, and the risk of concrete segregation still exists during construction.

[0004] Therefore, there is an urgent need for a vertical concrete conveying device and a method for adjusting the vertical concrete conveying speed to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide a concrete vertical conveying device and a concrete vertical conveying speed adjustment method, which can adaptively and flexibly adjust the concrete conveying speed, reduce the risk of concrete segregation, ensure the quality of concrete pouring, and improve the convenience of maintenance and repair.

[0006] To achieve this objective, the present invention adopts the following technical solution: In a first aspect, a vertical concrete conveying device is provided, comprising: A flow guide tube is used for vertically conveying concrete. A deceleration assembly is installed in the inner cavity of the guide tube. The deceleration assembly includes a support and a deceleration component. The support is detachably connected to the guide tube. The deceleration component includes multiple deceleration blades arranged at intervals along the circumference of the support. The deceleration blades are rotatably disposed on the support about their extension direction. The surfaces of the multiple deceleration blades form a spiral channel, and the concrete in the guide tube can flow along the spiral channel. A flow velocity monitoring device is installed inside the guide tube and is configured to monitor the flow velocity of concrete inside the guide tube. The control unit, flow velocity monitoring device, and deceleration blade are all connected to the control unit, which is configured to adjust the rotation angle of the deceleration blade according to the flow velocity measured by the flow velocity monitoring device.

[0007] Optionally, the vertical concrete conveying device also includes multiple pressure monitoring devices installed on the support member. Pressure monitoring devices are installed on both sides of the deceleration member along the extension direction of the guide tube. The pressure monitoring devices are electrically or communicatively connected to the control unit and are configured to monitor the pressure inside the guide tube. The control unit is configured to adjust the rotation angle of the deceleration blades according to the pressure measured by the multiple pressure monitoring devices to clear the inside of the guide tube.

[0008] Optionally, a rotary drive unit connected to the support member is provided at one end of the deceleration blade and the support member. The control unit is configured to control the opening and closing of the rotary drive unit. The output end of the rotary drive unit is fixedly connected to the support member and is used to drive the deceleration blade to rotate around its extension direction. Alternatively, the first side of the deceleration blade is hinged to the support member, and the support member is provided with a linear drive unit corresponding to each of the multiple deceleration blades. The control unit is electrically or communicatively connected to the linear drive unit and is configured to control the opening and closing of the linear drive unit. The linear drive unit is hinged to the second side of the corresponding deceleration blade and is used to drive the second side of the corresponding deceleration blade to move along the extension direction of the guide tube.

[0009] Optionally, the vertical concrete conveying device also includes an installation ring located at the inlet of the guide tube. The installation ring is provided with multiple flow channels, through which concrete can enter or flow out of the inner cavity of the guide tube. The outer wall of the installation ring is threadedly connected to the inner wall of the guide tube, and the inner hole wall of the installation ring is threadedly connected to the support. Alternatively, the vertical concrete conveying device may also include an installation component installed on the inner wall of the guide tube, the installation component having an adjustable slot, and the support component being able to engage or disengage from the slot.

[0010] Optionally, the mounting ring includes an outer connecting ring, an inner connecting ring, and multiple connectors. The inner connecting ring is located in the inner hole of the outer connecting ring. The inner hole wall of the inner connecting ring is threadedly connected to the support. The outer wall of the outer connecting ring is threadedly connected to the inner wall of the guide tube. One end of the connector is connected to the outer wall of the inner connecting ring, and the other end is connected to the inner hole wall of the outer connecting ring. Multiple connectors are arranged circumferentially around the inner connecting ring. The flow channel is formed between the outer wall of the inner connecting ring, the inner hole wall of the outer connecting ring, and two adjacent connectors. The center of the inner connecting ring, the center of the guide tube, and the center of the support are coaxial.

[0011] Optionally, the mounting component includes a first mounting part and a second mounting part. One end of the first mounting part is fixedly connected to the inner wall of the guide tube, and the other end is detachably connected to one end of the second mounting part. The other end of the second mounting part is fixedly connected to the inner wall of the guide tube. A slot is formed between the first mounting part and the second mounting part, and the center of the slot, the center of the guide tube, and the center of the support are coaxial. When the other end of the first mounting part is separated from one end of the second mounting part, the distance between the other end of the first mounting part and one end of the second mounting part is adjustable, and the support member can enter or leave the slot. When the other end of the first mounting part is connected to one end of the second mounting part, the support member is confined within the slot.

[0012] Optionally, multiple speed reducers are provided, and the multiple speed reducers are spaced apart on the support along the extension direction of the guide tube.

[0013] Optionally, the flow rate monitoring device is mounted on the support and located at the lower opening of the guide tube; And / or, the control unit includes a near-field control unit and a remote control unit. The near-field control unit is disposed on the top of the support and electrically connected to both the flow velocity monitoring device and the deceleration blade. The near-field control unit is communicatively connected to the remote control unit. The near-field control unit is configured to adjust the rotation angle of the deceleration blade according to the flow velocity measured by the flow velocity monitoring device. The remote control unit is configured to collect and store the flow velocity measured by the flow velocity monitoring device and the rotation angle of the deceleration blade.

[0014] Secondly, a method for adjusting the vertical conveying speed of concrete is provided, which uses the vertical concrete conveying device of the first aspect to convey concrete, including the following steps: S1. Determine the preset falling speed of the concrete according to the construction plan, and drive multiple deceleration blades to rotate according to the preset falling speed so that the set speed at which the concrete flows out of the lower cylinder of the guide tube is equal to the preset falling speed. S2. Concrete is injected into the inner cavity of the guide tube through the upper opening of the guide tube, and the concrete flows downward along the spiral channel. Simultaneously, the real-time flow rate of the concrete is monitored using a flow rate monitoring device, and it is determined whether the real-time flow rate exceeds the first preset range. If so, the control unit drives multiple deceleration blades to rotate until the real-time flow rate is within the first preset range. If not, the concrete pouring continues.

[0015] Optionally, step S2 specifically includes the following steps: Concrete is injected into the inner cavity of the guide tube through the upper opening of the guide tube, and the concrete flows downward along the spiral channel. The real-time flow velocity of concrete is monitored using flow velocity monitoring devices, and the real-time flow velocity is corrected based on the current rotation angle of the deceleration blades. Determine whether the corrected real-time flow rate exceeds the first preset range; if so, use the control unit to drive multiple deceleration blades to rotate until the real-time flow rate is within the first preset range; if not, continue pouring concrete.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: This invention provides a vertical concrete conveying device. When the deceleration blades rotate around their extension direction, the angle between the deceleration blades and the vertical direction changes, altering the slope of the spiral channel. This changes the flow velocity of the concrete flowing along the spiral channel, thus achieving regulation of the concrete flow rate. This expands the versatility of the vertical concrete conveying device and improves the flexibility of adjusting the vertical concrete conveying speed. During concrete pouring, the flow rate monitoring component can monitor the concrete flow rate in real time. When the monitored flow rate is too high or too low, the control unit can automatically control the rotation of the deceleration blades to achieve adaptive adjustment of the concrete flow rate, effectively reducing the risk of concrete segregation and ensuring the quality of concrete pouring. Furthermore, the support component and the guide cylinder are detachably connected, allowing the entire deceleration assembly to be removed from the guide cylinder cavity by detaching the support component when the deceleration blades malfunction or require cleaning. This significantly improves the convenience of maintenance and repair of the deceleration assembly.

[0017] This invention provides a method for adjusting the vertical conveying speed of concrete. When the rotation angle of the deceleration blades differs, the flow velocity of the concrete within the guide tube also varies accordingly. Therefore, before pouring, a preset falling speed that prevents concrete segregation can be determined in advance based on the construction plan. The rotation angle of the deceleration blades is then adjusted according to this preset falling speed to ensure that segregation does not occur when the concrete is conveyed to the pouring surface through the guide tube, providing initial assurance for subsequent pouring operations. During the pouring process, the real-time flow velocity of the concrete may deviate from the set speed due to factors such as friction. In this case, the rotation angle of the deceleration blades can be adjusted in real time by the control unit, thereby significantly improving the real-time control accuracy of the concrete flow velocity, effectively reducing the risk of concrete segregation, and ensuring the quality of the concrete pouring. Attached Figure Description

[0018] Figure 1 A schematic diagram of the structure of the vertical concrete conveying device provided by the present invention; Figure 2 A schematic diagram of the deceleration assembly, flow rate monitoring component, and pressure monitoring component of the vertical concrete conveying device provided by the present invention; Figure 3 A schematic diagram of the deceleration component of the vertical concrete conveying device provided by the present invention; Figure 4 A plan view of the mounting ring of the vertical concrete conveying device provided by the present invention; Figure 5 A plan view of the mounting components of the vertical concrete conveying device provided by the present invention; Figure 6 A flowchart of the concrete vertical conveying speed adjustment method provided by the present invention.

[0019] In the picture: 100. Flow guide tube; 110. Flow guide section; 200. Reduction assembly; 210. Support component; 220. Reduction component; 221. Reduction blade; 222. Rotary drive unit; 300. Flow velocity monitoring components; 400. Control unit; 500, alarm devices; 600. Pressure monitoring components; 710. Mounting ring; 711. Flow channel; 712. Outer connecting ring; 713. Inner connecting ring; 714. Connector; 720. Mounting component; 721. First mounting part; 722. Second mounting part; 723. Slot; 724. Third mounting part. Detailed Implementation

[0020] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not all of the structures.

[0021] In the description of this invention, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0022] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0023] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, 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 the present invention. In addition, the terms "first" and "second" are used only for distinction in description and have no special meaning.

[0024] Example 1 like Figures 1 to 5 As shown, this embodiment provides a vertical concrete conveying device that can adaptively and flexibly adjust the concrete conveying speed, reduce the risk of concrete segregation, ensure the quality of concrete pouring, and improve the convenience of maintenance and repair.

[0025] See Figure 1 , Figure 2 and Figure 3 The vertical concrete conveying device includes a guide cylinder 100, a deceleration assembly 200, a flow rate monitoring component 300, and a control unit 400. The guide cylinder 100 is used for vertical ( Figure 1 Concrete is conveyed in the Z direction; a deceleration assembly 200 is installed in the inner cavity of the guide tube 100. The deceleration assembly 200 includes a support member 210 and a deceleration member 220. The support member 210 is detachably connected to the guide tube 100, and the deceleration member 220 includes components along the circumference of the support member 210 (in the Z direction). Figure 1 Multiple deceleration blades 221 are arranged at intervals in the X direction of the flow guide tube 100. The deceleration blades 221 are rotatably mounted on the support member 210 about their extension direction. The surfaces of the multiple deceleration blades 221 are formed with spiral channels, and the concrete in the flow guide tube 100 can flow along the spiral channels. The flow velocity monitoring device 300 is disposed in the inner cavity of the flow guide tube 100 and is configured to monitor the flow velocity of the concrete in the flow guide tube 100. The flow velocity monitoring device 300 and the deceleration blades 221 are both connected to the control unit 400. The control unit 400 is configured to adjust the rotation angle of the deceleration blades 221 according to the flow velocity measured by the flow velocity monitoring device 300.

[0026] The concrete vertical conveying device provided in this embodiment, when the deceleration blade 221 rotates around its extension direction, changes the angle between the deceleration blade 221 and the vertical direction, and changes the slope of the spiral channel. This causes a change in the flow velocity of the concrete flowing along the spiral channel, thereby achieving regulation of the concrete flow velocity. This expands the versatility of the concrete vertical conveying device and improves the flexibility of adjusting the vertical conveying speed of concrete. During concrete pouring, the flow velocity monitoring component 300 can monitor the concrete flow velocity in real time. When the monitored flow velocity is too high or too low, the control unit 400 can automatically control the rotation of the deceleration blade 221 to achieve adaptive adjustment of the concrete flow velocity, effectively reducing the risk of concrete segregation and ensuring the quality of concrete pouring. Furthermore, the support component 210 is detachably connected to the guide cylinder 100, allowing the entire deceleration assembly 200 to be removed from the inner cavity of the guide cylinder 100 by removing the support component 210 when the deceleration blade 221 malfunctions or needs cleaning. This significantly improves the convenience of maintenance and repair of the deceleration assembly 200.

[0027] The deceleration blade 221 extends in the radial direction of the guide tube 100.

[0028] For example, after long-term use, residual concrete may remain on the inner wall of the guide cylinder 100, the surface of the deceleration blades 221, and the surface of the support component 210. This residual concrete can affect the stable delivery of concrete to the vertical concrete conveying device during subsequent pouring. Therefore, the guide cylinder 100 and the deceleration assembly 200 need to be cleaned regularly. At this time, workers can perform cleaning by removing the support component 210 from the guide cylinder 100, significantly improving the convenience of maintenance and repair of the deceleration assembly 200 and reliably ensuring the cleaning effect.

[0029] In this embodiment, the vertical concrete conveying device can replace the existing tremie pipe. Specifically, the guide pipe 100 includes multiple guide sections 110 connected in the vertical direction, and each guide section 110 corresponds to a section of the tremie pipe.

[0030] In some embodiments, the concrete vertical conveying device provided in this embodiment can be modified from an existing chute, significantly reducing material and processing costs. Specifically, the body of an existing chute is used as the guide tube 100, the control unit 400 and the flow rate monitoring component 300 are installed on the support component 210, and the deceleration assembly 200 is installed in the inner cavity of the chute body, thus obtaining the concrete vertical conveying device provided in this embodiment.

[0031] For example, the total length of the speed reducer 220 along the radial direction of the guide tube 100 is less than the inner diameter of the guide tube 100, that is, there is a gap between the end face of the speed reducer blade 221 and the inner wall of the guide tube 100, so that the speed reducer assembly 200 can be installed in the cylinder body of different specifications, which improves the flexibility and convenience of modification on the existing cylinder.

[0032] In this embodiment, the support member 210 includes a support shaft, the guide tube 100 and the support shaft both extend vertically, the support shaft is detachably connected to the guide tube 100, and the deceleration blade 221 is rotatably disposed on the support shaft.

[0033] In this embodiment, an anti-wear layer is provided on the upper surface of the deceleration blade 221. The anti-wear layer can significantly reduce the wear, scratching and erosion of the deceleration blade 221 surface by concrete, prevent the deceleration blade 221 from becoming thin, deformed or failing prematurely, and greatly extend the overall service life of the deceleration assembly 200.

[0034] For example, the wear-resistant layer is made of a wear-resistant alloy.

[0035] Optionally, see Figure 1 Multiple speed reducers 220 are provided, and these multiple speed reducers 220 are spaced apart on the support member 210 along the extension direction of the guide tube 100. The arrangement of multiple speed reducers 220 allows multiple spiral channels to be formed inside the guide tube 100, thereby enabling multi-level adjustment of the vertical concrete conveying speed. Each level can be flexibly adjusted, further improving the flexibility of adjusting the vertical concrete conveying speed and expanding the versatility of the vertical concrete conveying device.

[0036] The guide tube 100 extends vertically.

[0037] In this embodiment, the control unit 400 is connected to multiple speed reducers 220. The control unit 400 can individually control the rotation of any speed reducer blade 221 in any speed reducer 220, further improving the flexibility of concrete flow rate adjustment.

[0038] In some embodiments, see Figure 1 The guide tube 100 includes multiple guide sections 110 connected vertically. Any two adjacent guide sections 110 can be detachably connected. Each guide section 110 contains several speed reduction components 220. This configuration allows the concrete conveying speed within the guide tube 100 to be adjusted not only by changing the rotation angle of the speed reduction blades 221, but also by changing the number of spiral channels, and by changing the number of guide sections 110, i.e., changing the overall height of the guide tube 100. This significantly improves the flexibility of adjusting the vertical concrete conveying speed and expands the versatility of the vertical concrete conveying device.

[0039] For example, the detachable connection between two adjacent guide sections 110 is the same as the connection between the two cylinders of the string, which is the prior art in this field and will not be described in detail here.

[0040] Optionally, see Figure 1 The flow rate monitoring element 300 is installed on the support element 210 and located at the lower opening of the guide cylinder 100. Because the flow rate monitoring element 300 is installed on the support element 210, when the flow rate monitoring element 300 malfunctions, workers can remove it by disassembling the support element 210 from the guide cylinder 100 for replacement or repair, significantly improving the convenience of maintenance and repair of the vertical concrete conveying device. The velocity of concrete flowing out of the lower opening of the guide cylinder 100 is closest to the velocity at which concrete falls onto the pouring surface, and can be directly used to control the pouring speed, layer thickness, and vibration matching degree. Therefore, in this embodiment, placing the flow rate monitoring element 300 at the lower opening of the guide cylinder 100 significantly improves the accuracy of pouring quality control, effectively avoiding aggregate splashing, segregation, and rebar displacement due to excessively high flow rates, or cold joints and discontinuous supply due to excessively slow flow rates. Furthermore, after the concrete flows continuously through the spiral channel, the eddies, secondary flows, and velocity distortions are fully dissipated and homogenized, resulting in a more regular and symmetrical velocity field at the downstream section. By placing the flow velocity monitoring device 300 at the lower opening of the guide tube 100, i.e., below the deceleration device 220, the flow velocity measured by the flow velocity monitoring device 300 can be more representative, thus improving the accuracy of the measurement.

[0041] Specifically, in existing technologies, when concrete flows within a chute, its falling speed is high and its flow pattern is turbulent, making it difficult to accurately measure the concrete flow velocity and affecting the quality of concrete pouring. In this embodiment, the spiral channel is continuously curved, allowing the concrete to flow along it and form a stable thin layer at the bends. This prevents the concrete from breaking, fluctuating, or agglomerating within the guide tube 100, ensuring smooth downward transport. Furthermore, placing the flow velocity monitoring element 300 below the deceleration element 220 makes the measured flow velocity more representative and improves measurement accuracy.

[0042] In this embodiment, the flow velocity monitoring component 300 adopts a non-contact flow velocity sensor. Exemplarily, the non-contact flow velocity sensor includes, but is not limited to, a radar Doppler sensor and a laser Doppler sensor, and according to the design principle of Doppler sensors, it needs to maintain a certain angle with the concrete flow direction during installation.

[0043] In some embodiments, see Figure 1The vertical concrete conveying device also includes an alarm element 500 installed on the outer wall of the guide tube 100. The alarm element 500 is electrically or communicatively connected to the control unit 400 and is used to issue an alarm when the flow velocity measured by the flow velocity monitoring element 300 exceeds a first preset range, so as to promptly remind the staff and help ensure the quality of concrete pouring. The alarm element 500 is installed on the outer wall of the guide tube 100, which allows the staff to quickly and intuitively obtain alarm information and improves the response speed to abnormal working conditions.

[0044] The first preset range is determined based on the specific conditions of the concrete. As long as the concrete flow rate is within the first preset range, the concrete will not segregate.

[0045] For example, alarm element 500 uses a buzzer or alarm light.

[0046] Optionally, the control unit 400 includes a near-field control unit and a remote control unit. The near-field control unit is located on top of the support member 210 and is electrically connected to both the flow velocity monitoring element 300 and the deceleration blade 221. The near-field control unit is communicatively connected to the remote control unit. The near-field control unit is configured to adjust the rotation angle of the deceleration blade 221 according to the flow velocity measured by the flow velocity monitoring element 300. The remote control unit is configured to collect and store the flow velocity measured by the flow velocity monitoring element 300 and the rotation angle of the deceleration blade 221. This configuration not only allows workers to understand the pouring situation at the construction site in a timely manner through the information collected by the remote control unit, but also allows the information stored by the remote control unit to provide reliable data support for subsequent pouring operations, contributing to the development of intelligent and digital concrete pouring. In addition, since the near-field control unit is located on top of the support member 210, when the near-field control unit malfunctions, workers can remove the near-field control unit by detaching the support member 210 from the guide cylinder 100 for replacement or repair, significantly improving the convenience of maintenance and repair of the vertical concrete conveying device.

[0047] For example, the remote control unit stores a model of the relationship between the rotation angle of the deceleration blade 221 and the concrete flow rate. According to this model, the staff can understand the preset falling speed of concrete with different slump in the guide tube 100 when the deceleration blade 221 rotates at different angles.

[0048] When the concrete flows out of the lower cylinder of the guide cylinder 100 at a preset falling speed, the concrete will not segregate.

[0049] In this embodiment, the support member 210 is provided with an installation channel, and the installation channel is filled with wires. The near-field control unit is electrically connected to the flow velocity monitoring member 300 and the deceleration blade 221 through the wires.

[0050] In this embodiment, both the near-field control unit and the remote control unit are equipped with signal transmitters and signal receivers, which not only realizes the communication connection between the near-field control unit and the remote control unit, but also allows the operator to remotely control the deceleration blade 221 through the remote control unit, thus improving the convenience of operation.

[0051] Optionally, see Figure 1 and Figure 2 The vertical concrete conveying device also includes multiple pressure monitoring elements 600 installed on the support member 210. Pressure monitoring elements 600 are installed on both sides of the deceleration member 220 along the extension direction of the guide cylinder 100. The pressure monitoring elements 600 are electrically or communicatively connected to the control unit 400 and are configured to monitor the pressure inside the guide cylinder 100. The control unit 400 is configured to adjust the rotation angle of the deceleration blades 221 according to the pressure measured by the multiple pressure monitoring elements 600 to clear the inner cavity of the guide cylinder 100. By comparing the pressure on the upper and lower sides of the deceleration member 220, it is possible to determine whether there is a risk of blockage of concrete on the upper and lower sides of the deceleration member 220, allowing workers to intervene in a timely manner, effectively avoiding blockage and ensuring the efficiency and safety of concrete pouring operations. In addition, the pressure monitoring component 600 is installed on the support component 210. When the pressure monitoring component 600 malfunctions or needs routine maintenance, the staff can remove the pressure monitoring component 600 by removing the support component 210 from the guide tube 100, which significantly improves the convenience of maintenance and repair of the vertical concrete conveying device.

[0052] Specifically, when there is a risk of blockage or blockage has already occurred above the reducer 220, the pressure above the reducer 220 will increase significantly. At this time, the control unit 400 can be used to drive the reducer blade 221 to rotate, thereby increasing the vertical inclination of the spiral channel. As a result, the concrete blocked above the reducer 220 can flow down smoothly, ensuring the efficiency and safety of the concrete pouring operation.

[0053] For example, the pressure monitoring device 600 employs a pressure sensor.

[0054] In some embodiments, multiple speed reducers 220 are provided, and pressure monitoring elements 600 are provided on both sides of each speed reducer 220 along the extension direction of the guide tube 100, so as to realize multi-level monitoring of pressure at multiple locations along the entire length of the guide tube 100.

[0055] In some embodiments, when the pressure measured by the pressure monitoring device 600 exceeds the second preset range, the alarm device 500 will also issue an alarm to promptly remind the staff and improve the safety of concrete pouring construction.

[0056] The second preset range is determined based on multiple factors, including the self-weight of concrete and the flow state of concrete.

[0057] In an optional embodiment, see [link to relevant documentation] Figure 2 and Figure 3 The deceleration blade 221 is connected to the support member 210 at one end and is provided with a rotary drive unit 222 connected to the control unit 400. The control unit 400 is configured to control the opening and closing of the rotary drive unit 222. The output end of the rotary drive unit 222 is fixedly connected to the support member 210 and is used to drive the deceleration blade 221 to rotate around its extension direction, so as to realize flexible adjustment of the concrete flow speed.

[0058] For example, the rotary drive unit 222 adopts a micro motor. The rotor of the motor is fixedly connected to the support member 210, and the stator of the motor is disposed on the reduction blade 221. After the control unit 400 controls the motor to start, the rotor and the stator rotate relative to each other. The constraint force of the support member 210 on the rotor prevents the rotor from rotating. Then, under the action of the reverse force of the rotor, the stator can drive the reduction blade 221 to rotate.

[0059] In another optional embodiment, the first side of the deceleration blade 221 is hinged to the support member 210. The support member 210 is provided with a linear drive unit corresponding to each of the multiple deceleration blades 221. The control unit 400 is electrically or communicatively connected to the linear drive unit and is configured to control the opening and closing of the linear drive unit. The linear drive unit is hinged to the second side of the corresponding deceleration blade 221 and is used to drive the second side of the corresponding deceleration blade 221 to move along the extension direction of the guide tube 100. The first side of the deceleration blade 221 can only rotate relative to the support member 210 and cannot move. Therefore, when the linear drive unit drives the second side of the corresponding deceleration blade 221 to move along the extension direction of the guide tube 100, the entire deceleration blade 221 will rotate with its connection point with the support member 210 as the center, which can flexibly adjust the concrete flow speed.

[0060] Specifically, the greater the distance between the first and second sides of the deceleration blade 221 along the extension direction of the guide tube 100, the greater the slope of the spiral channel and the greater the concrete flow velocity; the smaller the distance between the first and second sides of the deceleration blade 221 along the extension direction of the guide tube 100, the smaller the slope of the spiral channel and the smaller the concrete flow velocity.

[0061] The first side and the second side are the two sides of the deceleration blade 221 along its width direction.

[0062] For example, the linear drive unit uses an electric telescopic rod.

[0063] In an optional embodiment, see [link to relevant documentation] Figure 4The vertical concrete conveying device also includes an installation ring 710 located at the opening of the guide cylinder 100. The installation ring 710 has multiple flow channels 711 through which concrete can enter or exit the inner cavity of the guide cylinder 100. The outer wall of the installation ring 710 is threadedly connected to the inner wall of the guide cylinder 100, and the inner wall of the installation ring 710 is threadedly connected to the support member 210. This configuration allows for a detachable connection between the support member 210 and the guide cylinder 100. First, the installation ring 710 is securely connected to the support member 210 via threads. Then, the entire deceleration assembly 200 is placed into the inner cavity of the guide cylinder 100 via the support member 210. Finally, the installation ring 710 is threadedly connected to the guide cylinder 100. This not only achieves a detachable connection between the support member 210 and the guide cylinder 100 but also provides convenient and quick operation, making it easy to use on construction sites. The inclusion of the flow channel 711 ensures that the installation ring 710 does not affect the flow of concrete, thus guaranteeing the smooth progress of the concrete pouring operation.

[0064] For example, when the mounting ring 710 is installed at the upper opening of the guide cylinder 100, concrete can enter the inner cavity of the guide cylinder 100 through the flow channel 711; when the mounting ring 710 is installed at the lower opening of the guide cylinder 100, concrete can be poured from the inner cavity of the guide cylinder 100 to the pouring surface through the flow channel 711.

[0065] In this embodiment, see Figure 4 The mounting ring 710 includes an outer connecting ring 712, an inner connecting ring 713, and multiple connecting members 714. The inner connecting ring 713 is located in the inner hole of the outer connecting ring 712, and the inner hole wall of the inner connecting ring 713 is threadedly connected to the support member 210. The outer wall of the outer connecting ring 712 is threadedly connected to the inner wall of the guide cylinder 100. One end of the connecting member 714 is connected to the outer wall of the inner connecting ring 713, and the other end is connected to the inner hole wall of the outer connecting ring 712. The multiple connecting members 714 are arranged circumferentially around the inner connecting ring 713. A flow channel 711 is formed between the outer wall of the inner connecting ring 713, the inner hole wall of the outer connecting ring 712, and two adjacent connecting members 714. The center of the inner connecting ring 713, the center of the guide cylinder 100, and the center of the support member 210 are coaxial. This arrangement of the mounting ring 710 not only achieves a detachable connection with the support member 210 and the guide cylinder 100, but also forms a flow channel 711 for concrete to flow through. By making the center of the inner connecting ring 713, the center of the guide tube 100, and the center of the support 210 coaxial, the support 210 can be located at the center of the guide tube 100, that is, the spiral channel can be located at the center of the guide tube 100. This not only improves the uniformity of concrete flow and effectively prevents aggregate segregation and uneven wear of the guide tube 100 wall, but also guides the concrete to flow orderly around the central axis of the guide tube 100 to form a uniform thin liquid film, avoid local accumulation and wall adhesion, and greatly reduce the probability of blockage of the guide tube 100.

[0066] Specifically, the connector 714 includes a connecting rod or a connecting rope. Compared with structures such as plates, the connecting rod and the connecting rope occupy less space in the inner hole of the outer connecting ring 712, thereby enabling the flow channel 711 to have a larger cross-sectional area and reducing the impact of the installation ring 710 on concrete pouring.

[0067] For example, see Figure 4 There are four connectors 714 arranged in a cross shape, which helps to improve the overall rigidity of the mounting ring 710.

[0068] In another alternative embodiment, see [link to relevant documentation]. Figure 1 and Figure 5 The vertical concrete conveying device also includes an installation component 720 disposed on the inner wall of the guide cylinder 100. The installation component 720 is provided with a slot 723 with an adjustable opening width. The support component 210 can be engaged or disengaged from the slot 723 to achieve a detachable connection between the support component 210 and the guide cylinder 100. The adjustable opening width of the slot 723 allows the support component 210 to be reliably confined within the slot 723 by reducing its opening width, preventing the support component 210 from disengaging from the slot 723 and ensuring the reliability of the support component 210's installation within the guide cylinder 100 during the pouring process. Moreover, when it is necessary to engage or disengage the support component 210 from the slot 723, this can be achieved by increasing the opening width of the slot 723, making the operation convenient and quick.

[0069] Specifically, the support member 210 is inserted into the slot 723 and connected to the guide tube 100; the support member 210 is disengaged from the slot 723 and can be removed from the guide tube 100.

[0070] In this embodiment, see Figure 1 and Figure 5The mounting component 720 includes a first mounting portion 721 and a second mounting portion 722. One end of the first mounting portion 721 is fixedly connected to the inner wall of the guide tube 100, and the other end is detachably connected to one end of the second mounting portion 722. The other end of the second mounting portion 722 is fixedly connected to the inner wall of the guide tube 100. A slot 723 is formed between the first mounting portion 721 and the second mounting portion 722, and the center of the slot 723, the center of the guide tube 100, and the center of the support member 210 are coaxial. When the other end of the first mounting portion 721 is separated from the other end of the second mounting portion 722, the distance from the other end of the first mounting portion 721 to the other end of the second mounting portion 722 is adjustable, and the support member 210 can enter or leave the slot 723. When the other end of the first mounting portion 721 is connected to the other end of the second mounting portion 722, the support member 210 is confined within the slot 723. This design allows workers to adjust the width of the slot 723 by adjusting the distance between the other end of the first mounting part 721 and one end of the second mounting part 722, thus enabling the support member 210 to smoothly enter or exit the slot 723. When the other end of the first mounting part 721 is connected to one end of the second mounting part 722, the slot 723 closes, and the slot 723 becomes a locking hole. The wall of the slot 723 can wrap around the support member 210, so as to stably limit the support member 210 on the mounting part 720, ensuring the reliability of the support member 210 installed in the guide tube 100 during the pouring process.

[0071] For example, the support member 210 has a circular cross-sectional shape, and both the first mounting portion 721 and the second mounting portion 722 are curved to form an arc-shaped groove 723.

[0072] Specifically, the first mounting part 721 and the second mounting part 722 are made of elastic material, so that the first mounting part 721 and the second mounting part 722 can undergo elastic deformation under the action of external force, so as to realize the adjustment of the width of the slot 723.

[0073] For example, the mounting part 720 adopts an elastic clamp, and the first mounting part 721 is detachably connected to the second mounting part 722 by a locking structure such as bolts and pins.

[0074] In some embodiments, see Figure 5 The mounting component 720 also includes a third mounting part 724 disposed on the inner wall of the guide tube 100. One end of the first mounting part 721 and the other end of the second mounting part 722 are fixedly connected to the inner wall of the guide tube 100 through the third mounting part 724.

[0075] Example 2 like Figure 6 As shown, this embodiment provides a method for adjusting the vertical conveying speed of concrete, using the vertical concrete conveying device of Embodiment 1 to convey concrete, including the following steps: S1. Determine the preset falling speed of the concrete according to the construction plan, and drive multiple deceleration blades 221 to rotate according to the preset falling speed, so that the set speed at which the concrete flows out of the lower cylinder of the guide cylinder 100 is equal to the preset falling speed.

[0076] The concrete vertical conveying speed adjustment method provided in this embodiment allows for different concrete flow velocities within the guide tube 100 depending on the rotation angle of the deceleration blade 221. Therefore, before pouring, a preset falling speed to prevent concrete segregation can be determined in advance according to the construction plan, and the rotation angle of the deceleration blade 221 can be adjusted based on this preset falling speed to ensure that no segregation occurs when the concrete is conveyed to the pouring surface via the guide tube 100, providing initial assurance for subsequent pouring operations.

[0077] Specifically, step S1 includes the following steps: S11. Determine the slump of the concrete and the preset falling speed of the concrete according to the construction plan, and use the relationship model in the remote control unit to determine the rotation angle of the deceleration blade 221 at the slump and the preset falling speed. S12. The near-field control unit drives the deceleration blade 221 to rotate through the rotary drive unit 222 or the linear drive unit until the deceleration blade 221 rotates to a suitable angle; at this time, the set speed of the concrete flowing out from the lower cylinder opening of the guide cylinder 100 is equal to the preset falling speed.

[0078] S2. Concrete is injected into the inner cavity of the guide cylinder 100 through the upper cylinder opening, and the concrete flows downward along the spiral channel. At the same time, the flow rate monitoring device 300 monitors the real-time flow rate of the concrete and determines whether the real-time flow rate exceeds the first preset range. If so, the control unit 400 drives multiple deceleration blades 221 to rotate until the real-time flow rate is within the first preset range. If not, the concrete pouring continues.

[0079] The concrete vertical conveying speed adjustment method provided in this embodiment can significantly improve the real-time control accuracy of concrete flow rate by adjusting the rotation angle of the deceleration blade 221 in real time through the control unit 400 during the pouring process, thereby effectively reducing the risk of concrete segregation and ensuring the quality of concrete pouring.

[0080] Specifically, if the real-time flow rate is greater than the upper limit of the first preset range, the real-time flow rate of the concrete needs to be reduced. At this time, the control unit 400 drives multiple deceleration blades 221 to rotate, thereby reducing the slope of the spiral channel. If the real-time flow rate is less than the lower limit of the first preset range, the real-time flow rate of the concrete needs to be increased. At this time, the control unit 400 drives multiple deceleration blades 221 to rotate, thereby increasing the slope of the spiral channel.

[0081] In some embodiments, in step S2, while the flow rate monitoring device 300 monitors the real-time flow rate of the concrete, multiple pressure monitoring devices 600 monitor the real-time pressure inside the guide tube 100 and determine whether the real-time pressure exceeds a second preset range. If so, the control unit 400 drives multiple deceleration blades 221 to rotate until the real-time pressure is within the second preset range. If not, concrete pouring continues. This operation effectively avoids concrete clogging the inner cavity of the guide tube 100, improving pouring efficiency.

[0082] In this embodiment, step S2 specifically includes the following steps: concrete is injected into the inner cavity of the guide cylinder 100 through the upper cylinder opening of the guide cylinder 100, and the concrete flows downward along the spiral channel; the real-time flow rate of the concrete is monitored by the flow rate monitoring device 300, and the real-time flow rate is corrected according to the current rotation angle of the deceleration blade 221; it is determined whether the corrected real-time flow rate exceeds the first preset range; if so, the multiple deceleration blades 221 are driven to rotate by the control unit 400 until the real-time flow rate is within the first preset range; if not, the concrete pouring continues.

[0083] By correcting the real-time flow velocity, the measurement errors caused by factors such as flow field deflection and changes in flow velocity components due to the slope of the spiral channel can be effectively offset, thereby effectively improving the accuracy of flow velocity measurement.

[0084] In some embodiments, in step S2, the remote control unit stores the collected flow velocity and angle information into the relational model to correct the parameters of the relational model, so that the relational model can be continuously adjusted to adapt to the actual construction conditions and improve the monitoring stability and control accuracy of the long-term operation of the concrete vertical conveying device.

[0085] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the implementation of the present invention. Those skilled in the art will be able to make various obvious changes, readjustments, and substitutions without departing from the scope of protection of the present invention. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the scope of protection of the claims of the present invention.

Claims

1. A vertical concrete conveying device, characterized in that, include: The guide tube (100) is used for vertically conveying concrete; A deceleration assembly (200) is installed in the inner cavity of the guide tube (100). The deceleration assembly (200) includes a support member (210) and a deceleration member (220). The support member (210) is detachably connected to the guide tube (100). The deceleration member (220) includes a plurality of deceleration blades (221) arranged circumferentially along the support member (210). The deceleration blades (221) are rotatably disposed on the support member (210) about their extension direction. The surfaces of the plurality of deceleration blades (221) are formed with spiral channels, and the concrete in the guide tube (100) can flow along the spiral channels. A flow velocity monitoring element (300) is disposed in the inner cavity of the guide tube (100) and is configured to monitor the flow velocity of concrete in the guide tube (100); The control unit (400) is connected to both the flow velocity monitoring device (300) and the deceleration blade (221). The control unit (400) is configured to adjust the rotation angle of the deceleration blade (221) according to the flow velocity measured by the flow velocity monitoring device (300).

2. The vertical concrete conveying device according to claim 1, characterized in that, The vertical concrete conveying device also includes a plurality of pressure monitoring elements (600) disposed on the support member (210). The pressure monitoring elements (600) are disposed on both sides of the deceleration member (220) along the extension direction of the guide tube (100). The pressure monitoring elements (600) are electrically or communicatively connected to the control unit (400) and are configured to monitor the pressure inside the guide tube (100). The control unit (400) is configured to adjust the rotation angle of the deceleration blade (221) according to the pressure measured by the plurality of pressure monitoring elements (600) to clear the inside of the guide tube (100).

3. The vertical concrete conveying device according to claim 1, characterized in that, The deceleration blade (221) is connected to the support member (210) at one end and is provided with a rotary drive unit (222) connected to the control unit (400). The control unit (400) is configured to control the opening and closing of the rotary drive unit (222). The output end of the rotary drive unit (222) is fixedly connected to the support member (210) and is used to drive the deceleration blade (221) to rotate around its extension direction. Alternatively, the first side of the deceleration blade (221) is hinged to the support member (210), and the support member (210) is provided with a linear drive unit corresponding to each of the multiple deceleration blades (221). The control unit (400) is electrically or communicatively connected to the linear drive unit and is configured to control the opening and closing of the linear drive unit. The linear drive unit is hinged to the second side of the corresponding deceleration blade (221) and is used to drive the second side of the corresponding deceleration blade (221) to move along the extension direction of the guide tube (100).

4. The vertical concrete conveying device according to claim 1, characterized in that, The vertical concrete conveying device also includes an installation ring (710) located at the opening of the guide cylinder (100). The installation ring (710) is provided with a plurality of flow channels (711), through which concrete can enter or flow out of the inner cavity of the guide cylinder (100). The outer wall of the installation ring (710) is threadedly connected to the inner wall of the guide cylinder (100), and the inner hole wall of the installation ring (710) is threadedly connected to the support member (210). Alternatively, the vertical concrete conveying device may further include an installation component (720) disposed on the inner wall of the guide tube (100), the installation component (720) being provided with a slot (723) with an adjustable groove width, and the support component (210) being able to engage or disengage from the slot (723).

5. The vertical concrete conveying device according to claim 4, characterized in that, The mounting ring (710) includes an outer connecting ring (712), an inner connecting ring (713), and a plurality of connectors (714). The inner connecting ring (713) is located in the inner hole of the outer connecting ring (712). The inner hole wall of the inner connecting ring (713) is threadedly connected to the support member (210). The outer wall of the outer connecting ring (712) is threadedly connected to the inner wall of the guide tube (100). One end of the connector (714) is connected to the outer wall of the inner connecting ring (713). The other end is connected to the inner hole wall of the outer connecting ring (712), and a plurality of the connecting parts (714) are arranged at intervals along the circumference of the inner connecting ring (713). The flow channel (711) is formed between the outer wall of the inner connecting ring (713), the inner hole wall of the outer connecting ring (712), and two adjacent connecting parts (714). The center of the inner connecting ring (713), the center of the guide tube (100), and the center of the support (210) are coaxial.

6. The vertical concrete conveying device according to claim 4, characterized in that, The mounting component (720) includes a first mounting part (721) and a second mounting part (722). One end of the first mounting part (721) is fixedly connected to the inner wall of the guide tube (100), and the other end is detachably connected to one end of the second mounting part (722). The other end of the second mounting part (722) is fixedly connected to the inner wall of the guide tube (100). The slot (723) is formed between the first mounting part (721) and the second mounting part (722), and the center of the slot (723), the center of the guide tube (100), and the center of the support member (210) are coaxial. When the other end of the first mounting part (721) is separated from one end of the second mounting part (722), the distance from the other end of the first mounting part (721) to one end of the second mounting part (722) is adjustable, and the support member (210) can enter or leave the slot (723). When the other end of the first mounting part (721) is connected to one end of the second mounting part (722), the support member (210) is confined within the slot (723).

7. The vertical concrete conveying device according to claim 1, characterized in that, Multiple speed reducers (220) are provided, and the multiple speed reducers (220) are spaced apart on the support (210) along the extension direction of the guide tube (100).

8. The vertical concrete conveying device according to any one of claims 1-7, characterized in that, The flow rate monitoring device (300) is disposed on the support (210) and located at the lower opening of the guide tube (100); And / or, the control unit (400) includes a near-field control unit and a remote control unit. The near-field control unit is disposed on the top of the support (210) and electrically connected to both the flow velocity monitoring unit (300) and the deceleration blade (221). The near-field control unit is communicatively connected to the remote control unit. The near-field control unit is configured to adjust the rotation angle of the deceleration blade (221) according to the flow velocity measured by the flow velocity monitoring unit (300). The remote control unit is configured to collect and store the flow velocity measured by the flow velocity monitoring unit (300) and the rotation angle of the deceleration blade (221).

9. A method for adjusting the vertical conveying speed of concrete, characterized in that, Conveying concrete using the vertical concrete conveying device as described in any one of claims 1-8 includes the following steps: S1. Determine the preset falling speed of the concrete according to the construction plan, and drive multiple deceleration blades (221) to rotate according to the preset falling speed, so that the set speed at which the concrete flows out of the lower cylinder of the guide tube (100) is equal to the preset falling speed. S2. Concrete is injected into the inner cavity of the guide cylinder (100) through the upper cylinder opening, and the concrete flows downward along the spiral channel. Meanwhile, the flow rate monitoring device (300) is used to monitor the real-time flow rate of the concrete and determine whether the real-time flow rate exceeds the first preset range; if so, the control unit (400) is used to drive multiple deceleration blades (221) to rotate until the real-time flow rate is within the first preset range; if not, the concrete pouring continues.

10. The method for adjusting the vertical conveying speed of concrete according to claim 9, characterized in that, Step S2 specifically includes the following steps: Concrete is injected into the inner cavity of the guide tube (100) through the upper opening of the guide tube (100), and the concrete flows downward along the spiral channel. The real-time flow velocity of the concrete is monitored using the flow velocity monitoring device (300), and the real-time flow velocity is corrected according to the current rotation angle of the deceleration blade (221). Determine whether the corrected real-time flow rate exceeds the first preset range; if so, use the control unit (400) to drive multiple deceleration blades (221) to rotate until the real-time flow rate is within the first preset range; if not, continue pouring concrete.

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