Double-fork type concrete vibrator capable of being opened and closed

Abstract

The utility model discloses a double-fork type openable concrete vibrator which comprises a vibration unit, the lower end of the vibration unit is connected with a first-order vibration piece capable of transmitting vibration of the vibration unit, and the left side and the right side of the lower end of the first-order vibration piece are movably connected with second-order vibration pieces capable of swinging left and right to be opened and closed respectively. And a driving unit for driving the left and right second-order vibrating reeds to open and close is arranged between the first-order vibrating reed and the second-order vibrating reeds. The utility model has the advantages that the contact area is larger, and the full insertion and tamping of concrete can be ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of concrete vibrators, in particular to a double-fork type openable and closable concrete vibrator. Background Art

[0002] In the field of construction engineering, the density of concrete is one of the key factors to ensure the structural strength and durability. For traditional concrete vibrating rods (such as CN101070730A), their vibrating bodies are usually designed in a cylindrical shape, which can remove air bubbles in the concrete through vibration and improve the density of the concrete. However, in modern architecture, fair-faced concrete structures often adopt "irregular curved surface thin-wall structures" due to their aesthetic and integrated design requirements. Such structures are characterized by complex surface shapes and thin wall thicknesses.

[0003] During the construction process, when using traditional cylindrical vibrating rods, due to their limited contact area with the concrete, especially in the curved surface and thin-wall areas, it is difficult for the vibrating rods to fully contact every corner of the concrete, resulting in insufficient ramming. This insufficient ramming will cause air bubbles and voids inside the concrete, which not only affect the overall strength of the structure but may also lead to surface defects and affect the appearance quality of fair-faced concrete.

[0004] Therefore, it is necessary to further improve and perfect the existing technology to overcome these deficiencies, and the present utility model is made based on this situation. Summary of the Utility Model

[0005] The purpose of the present utility model is to overcome the deficiencies of the prior art and provide a double-fork type openable and closable concrete vibrator with a larger contact area, which can ensure sufficient ramming of the concrete.

[0006] The present utility model is realized through the following technical solutions:

[0007] To solve the above technical problems, the present utility model provides a double-fork type openable and closable concrete vibrator, including a vibration unit. A first-order vibrating piece capable of transmitting its vibration is connected to the lower end of the vibration unit. Second-order vibrating pieces capable of swinging left and right to open and close are respectively movably connected to the left and right sides of the lower end of the first-order vibrating piece. A driving unit for driving the left and right second-order vibrating pieces to open and close is provided between the first-order vibrating piece and the second-order vibrating pieces.

[0008] In order to further solve the technical problems to be solved by the present utility model, in a double-fork type openable and closable concrete vibrator provided by the present utility model, the driving unit includes an output shaft capable of lifting up and down, and a driver fixed on the first-order vibrating plate and used for driving the lifting of the output shaft. The lower end of the output shaft is rotatably connected with two left and right connecting rods; the outer side of the upper end of the second-order vibrating plate is rotatably connected to the first-order vibrating plate, and the inner side of the upper end of the second-order vibrating plate and the lower end of the corresponding connecting rod are rotatably connected.

[0009] In order to further solve the technical problems to be solved by the present utility model, in a double-fork type openable and closable concrete vibrator provided by the present utility model, both the first-order vibrating plate and the second-order vibrating plate are sheet-like structures.

[0010] In order to further solve the technical problems to be solved by the present utility model, in a double-fork type openable and closable concrete vibrator provided by the present utility model, the lower end of the second-order vibrating plate is pointed.

[0011] In order to further solve the technical problems to be solved by the present utility model, in a double-fork type openable and closable concrete vibrator provided by the present utility model, the vibrating unit includes an eccentric vibrating motor, and the output end of the eccentric vibrating motor is connected to the first-order vibrating plate.

[0012] In order to further solve the technical problems to be solved by the present utility model, in a double-fork type openable and closable concrete vibrator provided by the present utility model, it further includes a control unit, and both the vibrating unit and the driving unit are electrically connected to the control unit.

[0013] Compared with the prior art, the present utility model has the following advantages:

[0014] 1. The vibrating body provided by the present utility model is mainly composed of two parts: a first-order vibrating plate and an openable and closable second-order vibrating plate. When the vibrating body is inserted into the concrete, the second-order vibrating plate is in a closed state, so that it can easily enter the designated position. Once the predetermined position is reached, the second-order vibrating plate will be opened by the driving unit. At this time, the action range of the vibrating plate will be significantly increased, so that effective vibrating operations can be carried out on a larger area of concrete. This design avoids the process of repeatedly pulling out and reinserting the traditional vibrating equipment, not only saves operation time, but also improves the vibrating efficiency. At the same time, due to the expansion of the vibrating range, the vibrating effect has also been significantly improved, which is crucial for ensuring the density and strength of the concrete structure.

[0015] 2. On one side of the second-order vibrating piece of the present utility model, it is indirectly connected to the first-order vibrating piece through a driver and a connecting rod. This design can effectively weaken the amplitude, making the vibration more concentrated in the high-frequency range, which is very beneficial for the overflow of air bubbles in deep concrete. High-frequency vibration helps the air bubbles to quickly rise to the concrete surface and be discharged, thereby further improving the compactness of the concrete and optimizing the vibrating effect.

[0016] 3. Both the first-order vibrating piece and the second-order vibrating piece in the present utility model are of a thin sheet structure. This design enables the vibrating piece to have a large surface area and a small thickness, so that during the casting process of fair-faced concrete, it can fully and effectively vibrate the thin-walled structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The following further elaborates in detail the specific embodiments of the present utility model in conjunction with the drawings, where:

[0018] Figure 1 is one of the structural schematic diagrams of the present utility model (the second-order vibrating piece is closed);

[0019] Figure 2 is the second structural schematic diagram of the present utility model (the second-order vibrating piece is open);

[0020] Figure 3 is the schematic diagram of the principle structure of the drive unit. SPECIFIC EMBODIMENTS

[0021] In order to enable those skilled in the art to better understand the technical solutions of the present utility model, the following further elaborates in detail the present utility model in conjunction with the drawings and specific embodiments.

[0022] As Figures 1 to 3 shown, a double-fork type openable and closable concrete vibrator includes a vibration unit 1, a first-order vibrating piece 2, a second-order vibrating piece 3, and a drive unit 4.

[0023] Vibration unit 1: The vibration unit 1 is located at the upper end of the vibrator and uses a conventional eccentric vibration motor, electromagnetic vibrator or other vibration devices. The output end of this vibration unit 1 is directly connected to the first-order vibrating piece 2 to ensure the high efficiency and stability of vibration transmission.

[0024] First-order vibrating piece 2: The first-order vibrating piece 2 is connected to the lower end of the vibration unit 1, and its main function is to transmit the vibration generated by the vibration unit 1. The first-order vibrating piece 2 is designed as a sheet structure and has high strength and stiffness to withstand the forces generated during the vibration process.

[0025] Second-order vibrating piece 3: There are two second-order vibrating pieces 3, which are respectively located on the left and right sides of the lower end of the first-order vibrating piece 2, and are connected to the first-order vibrating piece 2 through a movable connection method (here is a rotational connection). This design enables the second-order vibrating piece 3 to swing left and right to achieve the opening and closing actions.

[0026] When inserting into the concrete, the second-order vibrating piece 3 is in a closed state, which is convenient for smooth insertion. When reaching the designated position, the second-order vibrating piece 3 opens, so as to vibrate a larger range of concrete.

[0027] Drive unit 4: The drive unit 4 is arranged between the first-order vibrating piece 2 and the second-order vibrating piece 3, and is used to drive the left and right second-order vibrating pieces 3 to open and close.

[0028] The drive unit 4 includes an output shaft 41 that can move up and down, and a driver 42 fixed on the first-order vibrating piece 2 and used to drive the output shaft 41 to move up and down. The lower end of the output shaft 41 is rotationally connected with two left and right connecting rods 43; the outer side of the upper end of the second-order vibrating piece 3 is rotationally connected to the first-order vibrating piece 2, and the inner side of the upper end of the second-order vibrating piece 3 and the lower end of the corresponding connecting rod 43 are rotationally connected.

[0029] Among them, the driver 42 is a linear drive device. The driver 42 is preferably an electric push rod, or a transmission structure such as a motor plus a ball screw (this structure drives the ball screw to rotate through the motor, and then makes the screw generate a linear motion along the axis direction).

[0030] Working principle of the drive unit 4: When the driver 42 drives the output shaft 41 to move up and down, the two left and right connecting rods 43 are pulled up or pushed down, so that the two left and right second-order vibrating pieces 3 open or close.

[0031] The vibrating body provided by the present utility model is mainly composed of two parts: a first-order vibrating piece 2 and an openable and closable second-order vibrating piece 3 (a double-fork openable and closable second-order vibrating piece 3). During the use process, its unique two-stage design makes the vibrating work more efficient and accurate. Specifically, when the vibrating body is inserted into the concrete, the second-order vibrating piece 3 is in a closed state, so that it can conveniently enter the designated position. Once reaching the predetermined position, the second-order vibrating piece 3 will open. At this time, the acting range of the vibrating piece will increase significantly, so as to effectively vibrate a larger area of concrete.

[0032] The ingenuity of this design lies in that it avoids the process of repeatedly pulling out and reinserting of traditional vibrating equipment, not only saving operation time, but also improving the vibrating efficiency. At the same time, due to the expansion of the vibrating range, the vibrating effect has been significantly improved, which is crucial for ensuring the density and strength of the concrete structure.

[0033] In addition, one side of the second-order vibrating piece 3 of the present utility model is indirectly connected to the first-order vibrating piece 2 through a driver 42 and a connecting rod 43. This design can effectively weaken the amplitude, making the vibration more concentrated in the high-frequency range, which is very beneficial for the overflow of air bubbles in deep concrete. High-frequency vibration helps the air bubbles to quickly rise to the concrete surface and be discharged, thereby further improving the compactness of the concrete and optimizing the vibrating effect.

[0034] More specifically, both the first-order vibrating piece 2 and the second-order vibrating piece 3 in the present utility model are of a thin sheet-like structure. This design enables the vibrating pieces (including the first-order vibrating piece 2 and the second-order vibrating piece 3) to have a large surface area and a small thickness, so that during the casting process of fair-faced concrete, sufficient and effective vibrating operations can be carried out on the thin-walled structure. Since the contact area between the vibrating piece and the thin-walled structure is large, the vibrating force can be evenly transmitted to every corner of the thin-walled structure, ensuring that the air bubbles and voids inside the concrete are fully discharged, thereby improving the compactness and strength of the concrete. In addition, the vibrating piece with such a sheet-like structure can also adapt to various complex-shaped thin-walled structures, making it more flexible and applicable during the construction process.

[0035] More specifically, the lower end of the second-order vibrating piece 3 is pointed, which is convenient for smoothly inserting into the concrete.

[0036] More specifically, the vibrator further includes a control unit 5, and both the vibration unit 1 and the driving unit 4 are electrically connected to the control unit 5. The control unit 5 generally includes structures such as a circuit board and control buttons. Through this design, the entire system can not only meet complex working requirements but also ensure the simplicity and reliability of operation, and can achieve a certain degree of automation.

Claims

1. A double-fork openable and closable concrete vibrator, characterized in that: The invention comprises a vibration unit (1), wherein the lower end of the vibration unit (1) is connected to a first-order vibration plate (2) capable of transmitting its vibration, and the left and right sides of the lower end of the first-order vibration plate (2) are respectively movably connected to second-order vibration plates (3) capable of swinging left and right to open and close, and a driving unit (4) for driving the left and right second-order vibration plates (3) to open and close is provided between the first-order vibration plate (2) and the second-order vibration plate (3).

2. A double-fork openable and closable concrete vibrator according to claim 1, characterized in that: The driving unit (4) comprises an output shaft (41) capable of being lifted up and down, and a driver (42) fixed on the first-order vibration plate (2) and used for driving the output shaft (41) to be lifted up and down, wherein the lower end of the output shaft (41) is rotatably connected to two left and right connecting rods (43); the outer side of the upper end of the second-order vibration plate (3) is rotatably connected to the first-order vibration plate (2), and the inner side of the upper end of the second-order vibration plate (3) is rotatably connected to the lower end of the corresponding connecting rod (43).

3. The double-fork openable and closable concrete vibrator according to claim 1, characterized in that: The first-order vibration plate (2) and the second-order vibration plate (3) are both sheet-like structures.

4. The double-fork openable and closable concrete vibrator according to claim 1, characterized in that: The lower end of the second-order vibration plate (3) is pointed.

5. The double-fork openable and closable concrete vibrator according to claim 1, characterized in that: The vibration unit (1) comprises an eccentric vibration motor, wherein an output end of the eccentric vibration motor is connected to a first-order vibration sheet (2).

6. The double-fork openable and closable concrete vibrator according to claim 1, characterized in that: It also includes a control unit (5), and the vibration unit (1) and the driving unit (4) are both electrically connected to the control unit (5).

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