Multi-functional ultrasonic concrete vibrating tool

Abstract

This invention discloses a multifunctional ultrasonic concrete vibrator, relating to the technical field of building construction. Its key technical features include: a pull rod, a roller, a vibrator, an ultrasonic transducer, a converter, wiring, and a speed control switch. Under electrical stimulation, the ultrasonic transducer vibrates, pulling the pull rod to rotate the roller, thus achieving the purpose of vibrating the concrete slab. Simultaneously, by installing vibrators of different lengths, the thickness of the concrete slab can be controlled.

Description

Technical Field

[0001] This invention relates to the technical field of building construction, specifically to a multifunctional ultrasonic concrete vibrator. Background Technology

[0002] A vibrator is a tool used in engineering construction to compact concrete, eliminate honeycomb and pitting defects, and improve its strength. When pouring concrete into structural members, air bubbles must be removed from the mixed concrete. Using a vibrator to compact the concrete ensures a dense bond, eliminates honeycomb and pitting defects, improves its strength, and guarantees the quality of the concrete components.

[0003] When pouring concrete slabs, concrete vibration is often done using concrete vibrating plates. These machines are bulky, have a fixed output power, and are inefficient. Controlling the thickness of the concrete slabs requires a dedicated person, and the footprints left behind need to be smoothed out again, increasing the number of procedures and making them cumbersome. This wastes manpower and affects the quality of the finished product. Summary of the Invention

[0004] To address the shortcomings of existing technologies, the present invention aims to provide a multifunctional ultrasonic concrete vibrating tool with the following advantages: it changes the original "sliding" vibration mode of the vibrating plate to a "rolling" vibration mode, greatly improving work efficiency; according to different slab thickness requirements, vibrating rods of different lengths can be installed, and the slab thickness can be controlled during the "rolling" vibration operation of the tool, saving manpower input for slab thickness control, while simultaneously achieving one-time molding and improving the quality of concrete slab molding.

[0005] The above-mentioned objective of the present invention is achieved through the following technical solution:

[0006] A multifunctional ultrasonic concrete vibrating tool includes a pull rod and a roller. The pull rod has an "I"-shaped design, and the upper end of the pull rod is equipped with a speed adjustment switch. The lower end of the pull rod is sleeved and rotatably connected to the roller. The roller is hollow, and several vibrating rods are threadedly installed on the outer wall of the roller. Ultrasonic transducers are installed inside the vibrating rods.

[0007] In a preferred embodiment, the present invention can be further configured such that: one side of the roller is provided with an internal thread, and the roller is threadedly connected to a cylinder cover, the cylinder cover is provided with an annulus, and the cylinder cover is also provided with two cylindrical protrusions, and the annulus and the cylindrical protrusions are placed on the same plane.

[0008] In a preferred embodiment, the present invention can be further configured such that: a circular hole is provided on the other side of the roller, a bearing is installed in the circular hole, the outer ring of the bearing is fixedly connected to the inner wall of the roller, the inner ring of the bearing is sleeved on the pull rod, and the roller can rotate about the axial direction of the pull rod.

[0009] In a preferred embodiment, the present invention can be further configured as follows: a rubber layer is provided on the inner side of the outer ring and the outer side of the inner ring of the bearing, and a T-type transducer is symmetrically provided on the end face of the rubber layer along the bearing axis. The two stages of the plurality of ultrasonic transducers are respectively connected to two T-type transducers and are connected in parallel with each other. Two conductive sheets are provided on the rubber layer on the outer side of the inner ring of the bearing, and the two are not connected. The conductive sheets are placed on the outer side of the rubber layer, and the T-type transducer and the conductive sheets are electrically connected.

[0010] In a preferred embodiment, the present invention can be further configured as follows: the T-shaped converter is provided with an ear piece, the ear piece is equipped with a fixing clip, the lower side of the T-shaped converter is L-shaped, and the end is provided with a small metal ball, the small metal ball is in contact with the conductive sheet of the inner ring of the bearing, and the small metal ball is not in contact with both conductive sheets at the same time.

[0011] In summary, the present invention has at least one of the following beneficial technical effects:

[0012] 1. Vibrators of different lengths can be selected according to the thickness of the concrete slab to achieve the purpose of controlling the slab thickness;

[0013] 2. Achieve integrated concrete vibration, leveling, and slab thickness control, improving work efficiency, saving manpower, and enhancing the quality of concrete slab forming;

[0014] 3. This device changes the traditional "friction vibration" mode of the vibrating plate to the "rolling vibration" mode, saving manpower and improving work efficiency;

[0015] 4. The modular design facilitates the replacement of various modules in the vibration device and makes maintenance simple. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0017] Figure 2 This is a partial structural diagram of the internal circuitry of the present invention;

[0018] Figure 3 This is a side view of a portion of the structure of the present invention;

[0019] Figure 4 This is a cross-sectional view of the bearing;

[0020] Figure 5 This is a side view of the bearing;

[0021] Figure 6 This is a schematic diagram of the T-type converter.

[0022] Reference numerals: 1. Pull rod; 2. Roller; 3. Adjustment switch; 4. Ultrasonic transducer; 5. Circuit; 6. Plug; 7. Vibrating rod; 8. Cylinder cover; 9. Ring; 10. Protrusion; 11. Bearing; 12. Rubber layer; 13. T-type converter; 14. Conductive sheet; 15. Ear piece; 16. Fixing clip; 17. Metal ball. Detailed Implementation

[0023] The present invention will be further described in detail below with reference to the accompanying drawings.

[0024] like Figure 1-6 The diagram shows a multifunctional ultrasonic concrete vibrator disclosed in this invention. It includes a pull rod 1 and a roller 2. The pull rod 1 is I-shaped, with its upper end serving as a handle. A speed control switch 3 is located on one side of the upper end of the pull rod 1. The speed control switch 3 connects to the working circuit 5 and external circuit 5 of the ultrasonic transducer 4 via a generator (not shown in the diagram). Existing technology can be used for this connection, ensuring the normal operation of the speed control switch 3 and the ultrasonic transducer 4. The speed control switch 3 controls the opening and closing of the ultrasonic transducer 4 and the current magnitude through the generator, thereby controlling the output power of the ultrasonic transducer 4. Existing technology can be used for this speed control. A plug 6 is also located at the upper end of the pull rod 1, used to connect to an external power source to provide power to the entire device. The lower end of the pull rod 1 is sleeved and rotatably connected to the roller 2, which is hollow.

[0025] Several vibrating rods 7 are threadedly installed on the outer wall of the drum 2, and ultrasonic transducers 4 are installed inside the vibrating rods 7. The drum 2 has a polygonal cylindrical structure. The polygonal shape facilitates the connection of the vibrating rods 7. Moreover, the gap between the flat-mounted vibrating rods 7 and the curved-mounted vibrating rods 7 is smaller, which can effectively reduce the risk of concrete getting stuck in the gaps of the drum 2 and improve the service life of the device.

[0026] The threaded connection between the vibrator 7 and the roller 2 facilitates the replacement of the vibrator 7, allowing for the selection of different lengths to suit the thickness of the tamping plate and thus controlling the plate thickness. The inner thread of the vibrator 7 connects to the bottom thread of the ultrasonic transducer 4, and connection and disconnection are achieved through relative rotation. The ultrasonic transducer 4 utilizes existing technology, converting ultrasonic energy into mechanical high-frequency vibration energy through a piezoelectric ceramic plate inside the ultrasonic transducer 4.

[0027] The roller 2 has an internal thread on one side and is threaded to a cover 8. The cover 8 has a ring 9 and two cylindrical protrusions 10. The ring 9 and the cylinder are on the same plane. The cover 8 can be rotated by using a long stick in conjunction with the cylindrical protrusions 10, thereby removing or installing the cover 8.

[0028] A circular hole is provided on the other side of the roller 2, and a bearing 11 is installed in the circular hole. The outer ring of the bearing 11 is fixedly connected to the inner wall of the roller 2. The inner ring of the bearing 11 is sleeved on the pull rod 1 and the roller 2 can rotate axially around the pull rod 1.

[0029] Located between the bearing 11 and the roller 2, a rubber layer 12 is provided on the inner side of the outer ring and the outer side of the inner ring of the bearing 11 for insulation purposes. T-type transducers 13 are symmetrically arranged on the end face of the rubber layer 12 along the axis of the bearing 11. The T-type transducers 13 are made of conductive material with elastic function. The two stages of several ultrasonic transducers 4 are respectively connected to two T-type transducers 13 and are connected in parallel. Two conductive plates 14 are provided on the rubber layer on the outer side of the inner ring of the bearing 11. The conductive plates 14 are semi-circular and are used for conduction. The two plates are close to each other but not connected. The two conductive plates 14 are connected to different electrodes. The conductive plates 14 are placed on the outer side of the rubber layer 12. The T-type transducers 13 and the conductive plates 14 are electrically connected.

[0030] The T-type converter 13 is equipped with lugs 15, and a fixing clip 16 is mounted on the lugs 15. The fixing clip 16 is used to fix the anode wire and the cathode wire. The lower side of the T-type converter 13 is L-shaped, and the end has a small metal ball 17. The small metal ball 17 contacts the conductive plate 14 of the inner ring of the bearing 11, but does not connect with the two metal plates 14 at the same time. When the device is working, the inner and outer rings of the bearing 11 rotate relative to each other, driving the upper and lower T-type converters 13. The small metal balls 17 of the two T-type converters 13 only contact the two semi-circular conductive plates 14 at the same time, maintaining the energized state; in other words, they contact the rubber part in the middle of the two semi-circular conductive plates 14 at the same time, maintaining the disconnected state.

[0031] The implementation principle of this embodiment is as follows: After plug 6 is connected to the power supply, rotating the adjustment switch 3 starts the ultrasonic transducer 4 to work, driving the roller 2 and vibrating rod 7 to generate high-frequency vibration. The adjustment switch 3 can adjust the input current and control the output power of the ultrasonic transducer 4. Pulling the lever 1 forward causes the inner and outer rings of the bearing 11 to rotate. The T-type converter 13 and the semi-circular conductive plate 14 come into contact with each other and rotate. When the two metal balls 17 contact the rubber between the two semi-circular conductive plates 14, the circuit is interrupted. The bearing 11 continues to rotate, and the two metal balls 17 continue to contact the two semi-circular conductive plates 14. The circuit is restored, and the device continues to vibrate.

[0032] The embodiments described herein are preferred embodiments of the present invention and are not intended to limit the scope of protection of the present invention. Therefore, all equivalent changes made in accordance with the structure, shape, and principle of the present invention should be covered within the scope of protection of the present invention.

Claims

1. A multifunctional ultrasonic concrete vibrator, comprising a tie rod (1) and a roller (2), characterized in that, The pull rod (1) is designed in the shape of an "I". The upper end of the pull rod (1) is provided with a gear adjustment switch (3). The lower end of the pull rod (1) is sleeved and rotatably connected to the roller (2). The roller (2) is hollow. Several vibrating rods (7) are threaded on the outer wall of the roller (2). An ultrasonic transducer (4) is installed inside the vibrating rod (7). A circular hole is provided on the other side of the roller (2), and a bearing (11) is installed in the circular hole. The bearing (11) is located between the roller (2). A rubber layer (12) is provided on the inner side of the outer ring and the outer side of the inner ring of the bearing (11). A T-type converter (13) is symmetrically provided on the end face of the rubber layer (12) along the axis of the bearing (11). The two stages of several ultrasonic transducers (4) are respectively connected to two T-type converters (13) and are connected in parallel. Two conductive plates (14) are provided on the rubber layer on the outer side of the inner ring of the bearing (11) and are not connected to each other. The conductive plates (14) are placed on the outer side of the rubber layer (12). The T-type converter (13) and the conductive plates (14) are electrically connected. The outer ring of the bearing (11) is fixedly connected to the inner wall of the roller (2), the inner ring of the bearing (11) is sleeved on the pull rod (1), and the roller (2) can rotate around the axial direction of the pull rod (1); The T-type converter (13) is provided with an ear piece (15), and a fixing clip (16) is mounted on the ear piece (15). The lower side of the T-type converter (13) is L-shaped, and the end has a small metal ball (17). The small metal ball (17) contacts the conductive sheet (14) of the inner ring of the bearing (11), and the small metal ball (17) does not contact the two conductive sheets (14) at the same time.

2. The multi-functional ultrasonic concrete vibration tool according to claim 1, wherein The roller (2) has an internal thread on one side and a cylinder cover (8) is threaded to the roller (2). The cylinder cover (8) has a ring (9) and two cylindrical protrusions (10) on it. The ring (9) and the cylindrical protrusions (10) are placed on the same plane.

Images