Device capable of being used for vibrating constructional column concrete in secondary structure masonry construction

Abstract

The invention provides a device for vibrating constructional column concrete in secondary structure masonry construction, which comprises a small vibration head and an intelligent control unit, the small vibration head comprises a shell, a vibration motor, a vibration block and a vibration sensor, and the vibration motor, the vibration block and the vibration sensor are integrated in the shell; the intelligent control unit comprises a single-chip microcomputer control panel, an integrated power supply module, a display module and operation keys. The vibration motor is electrically connected with the integrated power supply module, the vibration block is connected to an output shaft of the vibration motor and eccentrically arranged in the shell, and the vibration sensor and the operation key are electrically connected with the single-chip microcomputer control panel. The integrated power supply module is electrically connected with the single-chip microcomputer control panel, and the single-chip microcomputer control panel is electrically connected with the display module and the vibration motor. The invention relates to the technical field of building construction auxiliary machinery, and can solve the problem that in the prior art, a small and medium-sized vibrating rod is inconvenient to use in a narrow space of a secondary structure.

Description

Technical Field

[0001] The invention relates to the technical field of building construction auxiliary machinery, and in particular to a device that can be used for vibrating structural column concrete in secondary structure masonry construction. Background Art

[0002] In the current construction process, structural columns, as an important component of the secondary structure infill wall, are often used to enhance the integrity, strength and rigidity of the wall. Their planar dimensions are small (such as wall thickness × 200mm or wall thickness × 250mm), the internal steel bars are dense, and the vertical height is large, resulting in great difficulties in concrete pouring and vibration operations. At present, insertable concrete vibrators are usually used for vibration on construction sites, but their end dimensions are large and difficult to insert into the interior of the structural column, especially in areas with dense steel cages. Therefore, during construction, people often resort to the second best option and use small vibrators to press against the square timbers outside the formwork to implement "wall-like vibration". However, due to the insufficient rigidity of the formwork, the vibration transmission efficiency between the square timbers and the formwork is low, the vibration effect is poor, it is difficult to ensure the density of the concrete, and a lot of work hours are wasted.

[0003] At the same time, since caulking materials (such as double-sided tape) are often used between the formwork and the blocks to prevent leakage, external vibration can easily cause deformation of the formwork and leakage, resulting in defects on the concrete surface or contamination of the blocks; in addition, when vibrating on the outside of the structural column formwork, it is impossible to determine whether the concrete has been poured to the corresponding position, and "empty vibration" is very likely to occur, further reducing construction efficiency and quality. Although the construction specifications require the use of small vibrating rods inserted into the interior of the structural column for pouring and vibrating operations, this specification is difficult to implement in actual operations due to the high rigidity, bulky structure, and incompatible end size of traditional soft-shaft vibrating rods, and there are major hidden dangers in construction quality. Therefore, it is necessary to provide a device that can be used for vibrating structural column concrete in secondary structure masonry construction, which can solve the problem of the inconvenience of using small vibrating rods in the narrow space of the secondary structure in the existing technology. Summary of the Invention

[0004] The purpose of the present invention is to provide a device that can be used for vibrating structural column concrete in secondary structure masonry construction, which can solve the problem that small and medium-sized vibrating rods in the prior art are inconvenient to use in the narrow space of the secondary structure.

[0005] In order to achieve the above object, the technical solution of the present invention is:

[0006] A device that can be used for vibrating structural column concrete in secondary structure masonry construction includes: a small vibrating head and an intelligent control unit, the small vibrating head including a shell, a vibration motor integrated in the shell, a vibration block and a vibration sensor, the intelligent control unit including a single-chip microcomputer control board, an integrated power supply module, a display module and operation buttons; the vibration motor is electrically connected to the integrated power supply module, the vibration block is connected to the output shaft of the vibration motor and is eccentrically arranged in the shell, the vibration sensor and the operation button are electrically connected to the single-chip microcomputer control board; the integrated power supply module is electrically connected to the single-chip microcomputer control board, and the single-chip microcomputer control board is electrically connected to the display module and the vibration motor.

[0007] The two ends of the shell are in arc-shaped transition.

[0008] A temperature sensor is also integrated in the shell, and the temperature sensor is electrically connected to the signal receiving end of the single chip control board.

[0009] A PCB circuit board is integrated in the shell, and the vibration sensor and the temperature sensor are welded on the PCB circuit board.

[0010] One end of the output shaft of the vibration motor is coaxially fixedly connected to the driving end of the vibration motor through a first bearing, and the other end of the output shaft of the vibration motor is rotatably connected to the inner wall of the shell through a second bearing; the vibration block is located between the first bearing and the second bearing.

[0011] The cross section of the vibration block is a semicircular structure, and the straight end of the vibration block is mounted on the output shaft of the vibration motor; the diameter of the vibration block is smaller than the inner diameter of the shell.

[0012] The integrated power supply module includes an AC220v to DC21v module and a DC21v to DC5v buck-boost module; the AC220v to DC21v module is connected to an external power supply and is electrically connected to the vibration motor and the DC21v to DC5v buck-boost module, and the DC21v to DC5v buck-boost module is electrically connected to the power supply end of the single-chip microcomputer control board.

[0013] The integrated power supply module also includes a lithium battery integrated in the battery compartment and a power socket integrated on the battery compartment wall. The lithium battery is electrically connected to the AC220v to DC21v module and the vibration motor.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The present invention is provided with a small vibrating head, a steel shell with a small volume, and arc-shaped transitions at both ends, which can improve the insertion and flexibility of the small vibrating head in narrow spaces and areas with dense steel bars. It can be applied to a variety of usage scenarios, especially suitable for the concrete vibration operation of structural columns in secondary structure masonry construction.

[0016] 2. The present invention is equipped with a small vibrating head, which drives the eccentrically installed vibrating block to rotate through a vibrating motor, thus abandoning the traditional soft shaft transmission method. It adopts an integrated design of thin-diameter cable, eccentric vibrating block and small vibrating motor, making the use of the entire device more lightweight and flexible, adapting to the internal working environment of the structural column, and achieving efficient vibration. At the same time, the vibration motor built into the end of the shell can provide local fixed-point vibration capability, effectively improving the density of concrete, avoiding quality problems such as honeycombed surface, reducing manual operation intensity, and improving construction efficiency.

[0017] 3. Since the present invention is equipped with an intelligent control unit, it can feedback the vibration status based on the real-time collected vibration data and temperature data, control the vibration motor, improve the construction intelligence level, and assist in identifying real vibration and empty vibration, thereby ensuring construction quality; at the same time, multi-functional control is achieved through operating buttons, and the display module provides display of working mode and working status, with complete information and user-friendly interaction. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and other objects, features and advantages of the present disclosure will become more apparent through a more detailed description of exemplary embodiments of the present disclosure with reference to the accompanying drawings, wherein like reference numerals generally represent like components throughout the exemplary embodiments of the present disclosure.

[0019] Figure 1 This is a cross-sectional view of a small vibrating head of a device for vibrating concrete of structural columns in secondary structure masonry construction according to the present invention;

[0020] Figure 2 This is a schematic structural diagram of an intelligent control unit in a device for vibrating concrete of a structural column in secondary structure masonry construction according to the present invention;

[0021] Figure 3 This is a schematic diagram of the connection of a device for vibrating concrete of structural columns in secondary structure masonry construction according to the present invention;

[0022] Figure 4 This is a front view of a display module and operating buttons in a device for vibrating concrete of a structural column in secondary structure masonry construction according to the present invention;

[0023] Figure 5 It is a top view of a vibrating block in a device for vibrating concrete of a structural column in secondary structure masonry construction according to the present invention;

[0024] Figure 6 The invention is a side view of a vibrating block in a device for vibrating concrete of a structural column in secondary structure masonry construction.

[0025] In the figure, 10 is a small vibration head, 11 is a housing, 12 is a vibration motor, 13 is a vibration block, 14 is a vibration sensor, 15 is a temperature sensor, 16 is a first bearing, 17 is a second bearing, 18 is a PCB circuit board, 20 is an intelligent control unit, 21 is a single-chip microcomputer control board, 22 is a display module, 23 is an operation button, 24 is an AC220v to DC21v module, 25 is a DC21v to DC5v step-up and step-down module, 26 is a lithium battery, 27 is a battery compartment, and 28 is a power socket. DETAILED DESCRIPTION

[0026] The following, in conjunction with the accompanying drawings and specific embodiments, further details the device for vibrating concrete in structural columns during secondary structure construction, as proposed by the present invention. The advantages and features of the present invention will become more apparent from the following description and claims. It should be noted that the drawings are highly simplified and not to exact scale, and are intended solely to facilitate and clearly illustrate the embodiments of the present invention.

[0027] Please see the attached Figure 1 To the attached Figure 4 A device that can be used to vibrate structural column concrete in secondary structure masonry construction includes a small vibration head 10 and an intelligent control unit 20. The small vibration head 10 includes a shell 11, a vibration motor 12 integrated in the shell 11, a vibration block 13 and a vibration sensor 14. The intelligent control unit 20 includes a single-chip control board 21, an integrated power supply module, a display module 22 and an operation button 23; the vibration motor 12 is electrically connected to the integrated power supply module through a cable, the vibration block 13 is connected to the output shaft of the vibration motor 12 and is eccentrically arranged in the shell 11, the vibration sensor 14 and the operation button 23 are electrically connected to the signal receiving end of the single-chip control board 21 through a data line; the integrated power supply module is electrically connected to the power supply end of the single-chip control board 21, and the signal output end of the single-chip control board 21 is electrically connected to the display module 22 and the vibration motor 12.

[0028] The integrated power supply module provides power to the vibration motor 12, which drives the vibration block 13 to rotate eccentrically, achieving physical vibration output for vibrating concrete. The vibration motor 12 is started and stopped via the IO port. The response rules in different working modes are as follows:

[0029] (1) Start: Press the confirmation button briefly to start the vibration motor 12 and start timing.

[0030] (2) Stop: The vibration motor 12 is automatically turned off after the countdown ends; press the confirmation button again in the pause state to continue running.

[0031] (3) Learning mode: The vibration motor 12 automatically starts vibrating according to the working logic of the learning mode, and the vibration sensor 14 collects vibration data.

[0032] Preferably, the vibration sensor 14 can adopt the existing ADXL345 acceleration sensor to collect the amplitude and frequency of the vibration of the small vibration head 10 in real time, and transmit the amplitude and frequency data to the single-chip control board 21 through the data line via the serial port, so that the single-chip control board 21 can intelligently control the start and stop and output power of the vibration motor 12, thereby achieving the amplitude and frequency required by the vibration construction design. The vibration sensor 14 and the single-chip control board 21 can be connected via I 2 C protocol for communication and data reading.

[0033] Preferably, the display module 22 can adopt the common cathode 2-digit digital tube display and LED indicator light of the existing technology. The digital tube display is used to display the vibration timing / countdown, vibration working mode (mode 1-mode 10) and other related information, which is convenient for construction personnel to operate the entire device; two LED indicator lights can be set to indicate the working status of the system.

[0034] Preferably, the main control chip of the single-chip control board 21 can adopt a control chip of model STC89C52RC as the system core control unit, which is used to perform air vibration detection based on the data collected by the vibration sensor 14 and intelligently control the vibration start and stop of the vibration motor 12.

[0035] Preferably, the operation button 23 can be a button of existing technology such as a press-type or touch-type button, and can include function buttons such as a setting button, a confirmation button, and a power button, and can realize user interactive control through long press (pressing continuously for more than 3 seconds) and short press (pressing for less than 1 second). For example: a short press of the setting button: cycles through modes (1→2→…→10→1); a long press of the setting button (non-setting state): performs a shutdown operation; a short press of the confirmation button: starts or pauses vibration; a long press of the confirmation button: performs a power on or restart operation. At the same time, the operation button 23 can be integrated with an anti-shake mechanism to effectively prevent accidental touches and ensure control stability.

[0036] Preferably, the power cable and the data cable can be integrated together and covered with a tensile and wear-resistant fiber layer to protect the power cable and the data cable to ensure stable and reliable power supply and data transmission.

[0037] Please see the attached Figure 1 The shell 11 is made of steel, and both ends of the shell 11 are in arc transition.

[0038] Preferably, the steel thickness of the shell 11 is 4 mm, the main body of the shell 11 is a cylinder with a diameter of 62, the total height of the shell 11 is 165 mm, and the shell 11 is small in size and can be inserted into the secondary structure concrete with a narrow space. The two ends adopt a transition structure with an arc surface, and the height of the arc surface is 11 mm, which can achieve the effect of avoiding the shell 11 from being stuck in the structural column steel cage while ensuring strength and rigidity.

[0039] Please see the attached Figure 1 and attached Figure 3 The housing 11 further includes a temperature sensor 15 integrated therein. The temperature sensor 15 is electrically connected to a signal receiving terminal of the single chip control board 21 via a data line.

[0040] Preferably, the temperature sensor 15 can be a DS18B20 chip temperature sensor of the prior art, which is used to collect the temperature inside the housing 11 and transmit the temperature data via a data line through a serial port to the single-chip control board 21. The single-chip control board 21 can read the temperature data of the temperature sensor 15 through a ROM protocol.

[0041] Preferably, a temperature threshold can be set in the single-chip microcomputer control board 21. When the temperature data collected by the temperature sensor 15 exceeds the temperature threshold, the single-chip microcomputer control board 21 can be used to control the vibration motor 12 to shut down or run at low power, thereby reducing the heat generated by the vibration motor 12 and providing over-temperature protection for the small vibration head 10.

[0042] Please see the attached Figure 1 The housing 11 is integrated with a PCB circuit board 18 , and the vibration sensor 14 and the temperature sensor 15 are soldered to the PCB circuit board 18 by high-temperature soldering.

[0043] Preferably, PCB 18 is reinforced within housing 11 by injection molding, thereby ensuring stable installation of vibration sensor 14 and temperature sensor 15 within housing 11 and accurate data collection. PCB 18 is located at the end of housing 11 away from vibration block 13. A 10 mm diameter hole is centrally located within PCB 18 to facilitate the extraction of data and power cables.

[0044] Please see the attached Figure 1 One end of the output shaft of the vibration motor 12 is coaxially connected to the driving end of the vibration motor 12 through a first bearing 16, and the other end of the output shaft of the vibration motor 12 is rotatably connected to the inner wall of the housing 11 through a second bearing 17; the vibration block 13 is located between the first bearing 16 and the second bearing 17.

[0045] By disposing the first bearing 16 and the second bearing 17 , the vibration motor 12 can drive its output shaft to drive the vibration block 13 to rotate stably, thereby achieving a vibrating effect on the concrete and extending the service life of the vibration motor 12 .

[0046] Preferably, the first bearing 16 and the second bearing 17 can be deep groove ball bearings 638 with a thickness of 9 mm, and the diameter of the first bearing 16 is larger than the diameter of the second bearing 17. The vibration motor 12 can be a 150W brushless DC motor, model 57BL, using PMW speed regulation, with a speed of 3000 r / min.

[0047] Please see the attached Figure 5 and attached Figure 6 The cross section of the vibration block 13 is a semicircular structure, and the straight end of the vibration block 13 is mounted on the output shaft of the vibration motor 12 through a connecting hole; the diameter of the vibration block 13 is smaller than the inner diameter of the housing 11.

[0048] Preferably, the vibration block 13 is a steel block with a diameter of 56 mm, a thickness of 37 mm, and a mass of 0.36 kg. The shape and size of the vibration block 13 can be adaptively selected according to actual vibration requirements. The entire small vibration head 10 is light in weight and easy to operate and use.

[0049] Please see the attached Figure 3 The integrated power supply module includes an AC220v to DC21v module 24 and a DC21v to DC5v buck-boost module 25; the AC220v to DC21v module 24 is connected to an external power supply and is electrically connected to the vibration motor 12 and the DC21v to DC5v buck-boost module 25, and the DC21v to DC5v buck-boost module 25 is electrically connected to the power supply end of the single-chip control board 21.

[0050] The AC220V to DC21V module 24 is connected to a three-stage electrical box at the construction site to convert the 220V AC power supply to a 21V DC power supply. This provides a 21V DC operating power source for the entire device, achieving AC / DC dual-mode power supply. The vibration motor 12 operates on a 21V DC operating power source. The DC21V to DC5V buck-boost module 25 is used to step down the 21V DC operating power source to a 5V DC power source, which provides operating power for the single-chip microcomputer control board 21.

[0051] Please see the attached Figure 2 The integrated power supply module also includes a lithium battery 26 integrated into a battery compartment 27 and a power socket 28 integrated into the wall of the battery compartment 27. The lithium battery 26 is electrically connected to the AC220V to DC21V module 24 and the vibration motor 12. The lithium battery 26 is a removable and replaceable rechargeable lithium battery (common or similar to ordinary handheld power tool lithium batteries).

[0052] The AC220v to DC21v module 24 can charge the lithium battery 26 , making it convenient to provide working power for the vibration motor 12 through the lithium battery 26 when there is no external power supply. The power socket 28 can be used to connect the vibration motor 12 .

[0053] Please see the attached Figure 1 To the attached Figure 6 , the usage method and functions of the present invention are as follows:

[0054] The system is based on an STC89C52RC single-chip microcontroller control board 21, paired with an ADXL345 accelerometer as a vibration sensor 14 and a DS18B20 temperature sensor 15 as a fuse protection mechanism. It also integrates a setup button, confirmation button, power button, LED indicator, digital display, and vibration motor 12. The system supports 10 preset vibration modes, and its operating logic is centered around key operation, status determination, and device control. The software architecture of the single-chip microcontroller control board 21 implements soft timing and task polling, resulting in a simple structure and high reliability.

[0055] Ten operating modes encompass various control strategies, including normal vibration, long-term vibration, and idle vibration learning. The "Set" and "Confirm" keys enable mode switching, start / stop control, and power on / off, simultaneously controlling the operating status of the vibration motor 12, the digital tube, and the LED indicator. This integrates data acquisition from the vibration sensor 14 and temperature sensor 15, user interaction with the function buttons, dynamic display on the display module 22, and control of the vibration motor 12, creating a complete vibration control system.

[0056] After the system is initialized, it enters the main loop and executes the following tasks in a loop:

[0057] ①Key detection: Periodically detect the input status of function keys.

[0058] ② Function judgment and execution: determine whether to trigger operations such as mode switching and vibration activation.

[0059] ③ Vibration control: Control the output of the vibration motor 12 according to the setting.

[0060] ④ Display update: Synchronously refresh the digital tube and indicator light display of the display module 22.

[0061] ⑤Sensor data acquisition: In learning mode (mode 10), the ADXL345 acceleration sensor, i.e., the vibration sensor 14, is called to obtain the vibration status; at the same time, the data of the DS18B20 temperature sensor 15 is read once per second and refreshed for display.

[0062] To turn on the machine, you need to press and hold the confirmation button for 3 seconds, then click the confirmation button to start the vibration motor 12. After 3 seconds, the amplitude of the small vibration head 10 detected by the ADX345 acceleration sensor, i.e., the vibration sensor 14, is transmitted to the single-chip control board 21 and compared with the preset empty vibration amplitude. If the amplitude data is too small, the green indicator light of the display module 22 is on and the timing is normal through the digital tube. If the amplitude data is close to or equal to the empty vibration amplitude, it is determined to be empty vibration, the red indicator light of the display module 22 is on and the vibration motor 12 is controlled to stop vibrating.

[0063] During the operation of the vibration motor 12, the amplitude is sampled every 1 second. If the amplitude data increases significantly, the timing is paused, the red indicator light turns on, and the confirmation button is clicked again for further judgment. When the timing reaches the preset time (you can select 1-8 fixed durations through the setting button, or enter mode 9 long vibration or mode 10 learning), the green indicator light flashes, the vibration motor 12 stops, and the vibration ends. Mode 9 is the long vibration mode, and you can switch between start and stop by clicking the power button. Long press the setting button to shut down, and short press the setting button to switch modes. In addition, the temperature sensor 15 detects the temperature every 1 second and transmits it to the single-chip microcomputer control board 21. When the temperature inside the housing 11 exceeds 90°, the red indicator light and the green indicator light of the display module 22 can be controlled to flash at the same time and the vibration motor 12 can be controlled to stop vibrating.

[0064] You can short press the set key to select mode 10, which is the learning mode, and long press the set key to start learning. The learning mode is used to record the detected "natural vibration" frequency, provide a reference for subsequent control, and achieve adaptive adjustment of advanced modes. In learning mode, the vibration motor 12 runs and the small vibration head 10 vibrates. In the first three seconds, the amplitude is collected to determine whether it is an empty vibration. The method for judging empty vibration has been stated before and will not be repeated here. If it is judged to be an empty vibration, the vibration is paused and the red indicator light flashes. If it is judged to be non-empty vibration, it is effective vibration. Sampling starts once per second and is compared with the amplitude of the previous second. When the amplitude is relatively stable for ten consecutive seconds, that is, the amplitude changes within the specified small range, the amplitude during this period is the "natural vibration" frequency. Take this time as the preset cumulative time for this learning. The next time you select mode 10, it will be judged according to this time. At this time, long press the set key to start learning.

[0065] The above description is only a description of the preferred embodiments of the present invention and does not limit the scope of the present invention. Any changes and modifications made by ordinary technicians in the field of the present invention based on the above disclosure shall fall within the scope of protection of the claims.

Claims

1. A device for vibrating structural column concrete in secondary structure masonry construction, characterized in that: include: A small vibration head (10) and an intelligent control unit (20) are provided. The small vibration head (10) comprises a housing (11), a vibration motor (12) integrated in the housing (11), a vibration block (13) and a vibration sensor (14). The intelligent control unit (20) comprises a single-chip microcomputer control board (21), an integrated power supply module, a display module (22) and an operation button (23). The vibration motor (12) is electrically connected to the integrated power supply module. The vibration block (13) is connected to the output shaft of the vibration motor (12) and is eccentrically arranged in the housing (11). The vibration sensor (14) and the operation button (23) are electrically connected to the single-chip microcomputer control board (21). The integrated power supply module is electrically connected to the single-chip microcomputer control board (21). The single-chip microcomputer control board (21) is electrically connected to the display module (22) and the vibration motor (12).

2. The device for vibrating structural column concrete in secondary structure masonry construction according to claim 1, characterized in that: The two ends of the shell (11) are in the form of arc-shaped transitions.

3. The device for vibrating structural column concrete in secondary structure masonry construction as claimed in claim 1 or 2, characterized in that: A temperature sensor (15) is also integrated in the housing (11), and the temperature sensor (15) is electrically connected to a signal receiving end of the single chip control board (21).

4. The device for vibrating structural column concrete in secondary structure masonry construction as claimed in claim 3, characterized in that: A PCB circuit board (18) is integrated in the housing (11), and the vibration sensor (14) and the temperature sensor (15) are welded on the PCB circuit board (18).

5. The device for vibrating structural column concrete in secondary structure masonry construction according to claim 1, characterized in that: One end of the output shaft of the vibration motor (12) is coaxially fixedly connected to the driving end of the vibration motor (12) through a first bearing (16), and the other end of the output shaft of the vibration motor (12) is rotatably connected to the inner wall of the housing (11) through a second bearing (17); the vibration block (13) is located between the first bearing (16) and the second bearing (17).

6. The device for vibrating structural column concrete in secondary structure masonry construction as claimed in claim 1 or 5, characterized in that: The cross section of the vibration block (13) is a semicircular structure, and the straight end of the vibration block (13) is mounted on the output shaft of the vibration motor (12); the diameter of the vibration block (13) is smaller than the inner diameter of the housing (11).

7. The device for vibrating structural column concrete in secondary structure masonry construction according to claim 1, characterized in that: The integrated power supply module comprises an AC220v to DC21v module (24) and a DC21v to DC5v step-up and step-down module (25); the AC220v to DC21v module (24) is externally connected to a power supply and is electrically connected to the vibration motor (12) and the DC21v to DC5v step-up and step-down module (25); the DC21v to DC5v step-up and step-down module (25) is electrically connected to a power supply terminal of a single-chip microcomputer control board (21).

8. The device for vibrating structural column concrete in secondary structure masonry construction according to claim 7, characterized in that: The integrated power supply module further comprises a lithium battery (26) integrated in the battery compartment (27) and a power socket (28) integrated on the compartment wall of the battery compartment (27); the lithium battery (26) is electrically connected to the AC220v to DC21v module (24) and the vibration motor (12).

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