Concrete mixing equipment with noise reduction function

By introducing sound insulation cylinders and sound-absorbing cotton structures into concrete mixing equipment, the problem of noise pollution during the mixing process is solved, noise reduction is achieved, and the stability and convenience of the equipment are improved.

CN224408009UActive Publication Date: 2026-06-26CHANGRUI DIGITAL TECH (SICHUAN) CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHANGRUI DIGITAL TECH (SICHUAN) CO LTD
Filing Date
2025-07-08
Publication Date
2026-06-26

AI Technical Summary

Technical Problem

Existing concrete mixing equipment generates noise pollution during operation, affecting the surrounding environment, and lacks effective noise reduction measures.

Method used

It adopts a soundproof cylinder structure, with sound-absorbing cotton filled inside the soundproof cylinder. Through the cooperation of spiral stirring blades and U-shaped plates, it can achieve uniform stirring of materials and reduce noise transmission.

Benefits of technology

It effectively reduces noise transmission, improves the sealing of the mixing process and the stability of the equipment, and facilitates the disassembly and replacement of the soundproof cylinder.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to concrete production technical field, concretely relates to a concrete mixing plant with noise reduction function, include: mixing bucket, the hollow cylindrical shape is formed in the inside of mixing bucket, a plurality of support columns are equipped with in the circumference outer wall of mixing bucket, the inside of mixing bucket is equipped with sound insulation cylinder, it is the openwork area between the outer wall and the inner wall of sound insulation cylinder, the openwork area is filled with sound absorption cotton, the inside of sound insulation cylinder is detachably connected with one inner tube, one end of mixing bucket is equipped with the bucket cover, the centre of the other end surface of mixing bucket is equipped with motor, the output shaft of motor extends to the inside of inner tube, and the terminal of output shaft is provided with U type board, the both arms between U type board are equipped with spiral stirring vane, spiral stirring vane extends to the bucket cover. The utility model reduces the sound transmission to the outside world through sound insulation cylinder, plays the effect of reducing noise.
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Description

Technical Field

[0001] This utility model belongs to the field of concrete production technology, specifically relating to a concrete mixing equipment with noise reduction function. Background Technology

[0002] Concrete is a composite material made by mixing cementitious materials (organic, inorganic, or organic-inorganic composite), granular aggregates, water, and chemical admixtures and mineral admixtures in appropriate proportions, and then hardening it over a certain period of time. It is the most widely used artificial civil engineering material.

[0003] Conventional concrete mixing equipment generates noise pollution during use, affecting the surrounding environment. During mixing, the mixing blades collide with the raw materials, producing impact noise. Noise reduction measures cannot be effectively implemented to minimize the impact of noise pollution. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings and deficiencies in the existing technology and provide a concrete mixing equipment with noise reduction function. This mixing equipment can reduce the sound transmitted to the outside world through the sound insulation cylinder, thereby achieving the effect of noise reduction.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: a concrete mixing device with noise reduction function, comprising: a mixing drum, the mixing drum being hollow cylindrical inside, with multiple support columns on the outer circumference of the mixing drum, a sound insulation cylinder inside the mixing drum, a hollow area between the outer and inner walls of the sound insulation cylinder, the hollow area being filled with sound-absorbing cotton, an inner cylinder being detachably connected inside the sound insulation cylinder, a drum cover being provided at one end of the mixing drum, a motor being provided at the center of the other end face of the mixing drum, the output shaft of the motor extending into the interior of the inner cylinder, and a U-shaped plate being provided at the end of the output shaft, with a spiral mixing blade being provided between the two arms of the U-shaped plate, the spiral mixing blade extending to the drum cover.

[0006] Furthermore, the barrel lid has an inlet and an outlet, both of which are equipped with sealing caps.

[0007] Furthermore, a sealing gasket is provided on the left end face of the sealing cover. The sealing gasket is adapted to the shape of the discharge port and is bonded and fixed to the sealing cover. A handle is provided on the left end face of the sealing cover and is welded and fixed to the sealing cover.

[0008] Furthermore, the outer diameter of the soundproof cylinder is the same as the inner diameter of the mixing tank, and the soundproof cylinder and the mixing tank are fixedly connected by bolts.

[0009] Furthermore, the inner wall of the soundproof cylinder is symmetrically provided with two T-shaped columns, and the outer wall of the inner cylinder is symmetrically provided with two T-shaped grooves. The soundproof cylinder and the T-shaped columns are integrally formed, and the shapes of the T-shaped columns and the T-shaped grooves are compatible.

[0010] Furthermore, the motor is fixedly connected to the mixing tank by bolts, the output shaft of the motor is welded and fixed to the U-shaped plate, the spiral mixing blade is welded and fixed to the U-shaped plate, and the diameter of the spiral mixing blade is adapted to the inner diameter of the inner cylinder.

[0011] Compared with the prior art, this utility model has the following advantages:

[0012] Soundproof tubes are used, and sound-absorbing cotton is filled inside the soundproof tubes to reduce the transmission of sound to the outside world;

[0013] The soundproofing cylinder and the inner cylinder are snap-fitted together, making it easy to remove and replace.

[0014] The U-shaped plate, in conjunction with the spiral mixing blades, facilitates the uniform mixing of materials inside the soundproof cylinder. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall cross-sectional structure of the mixing drum in an embodiment of a concrete mixing equipment with noise reduction function according to this utility model.

[0016] Figure 2 This is a schematic diagram of the overall structure of the mixing drum in an embodiment of a concrete mixing equipment with noise reduction function according to this utility model;

[0017] Figure 3 This is a schematic diagram of the overall structure of the mixing drum and the sealing cover in an embodiment of a concrete mixing equipment with noise reduction function according to this utility model;

[0018] Figure 4 This is a schematic diagram of a motor with noise reduction function and a combination structure of a U-shaped plate and a spiral stirring blade according to the present invention.

[0019] Figure 5 This is an exploded structural diagram of the sound insulation cylinder in an embodiment of a concrete mixing equipment with noise reduction function according to this utility model.

[0020] The reference numerals in the accompanying drawings include:

[0021] 1. Mixing tank; 2. Support column; 3. Sound insulation cylinder; 30. Sound-absorbing cotton; 31. T-shaped column; 4. Inner cylinder; 40. T-shaped groove; 5. Tank lid; 50. Feed inlet; 51. Discharge outlet; 6. Motor; 60. U-shaped plate; 61. Spiral mixing blade; 7. Sealing cover; 70. Sealing gasket; 71. Handle. Detailed Implementation

[0022] To enable those skilled in the art to better understand this utility model, the technical solution of this utility model will be further described below in conjunction with the accompanying drawings and embodiments.

[0023] The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual images. They should not be construed as limiting the scope of this patent. To better illustrate the embodiments of this utility model, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0024] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as up, down, left, right, inside, outside, etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, 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, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0025] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connection" or similar designations indicating the connection relationship between components should be interpreted broadly. For example, they may refer to a fixed connection, a detachable connection, or an integral part; a mechanical connection or an electrical connection; a direct connection or an indirect connection through an intermediate medium; or a connection within two components or an interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Example

[0026] like Figure 1-5 As shown, this utility model has the following features. Specifically, the mixing tank 1 is a hollow cylinder, providing space for the entire mixing process. Multiple support columns 2 are evenly distributed on the outer circumference of the mixing tank 1 near the bottom, forming an integral structure with the mixing tank 1. There are at least four of these columns, which can stably support the entire mixing tank 1, increasing the overall stability of the equipment.

[0027] A sound-insulating cylinder 3 is installed inside the mixing tank 1, forming a hollow area between its outer and inner walls. This area is filled with sound-absorbing cotton 30, which effectively absorbs noise generated during mixing and reduces noise propagation. T-shaped columns 31 are symmetrically arranged on the inner wall of the sound-insulating cylinder 3. The T-shaped columns 31 and the sound-insulating cylinder 3 are integrally formed, ensuring structural robustness. An inner cylinder 4 is installed inside the sound-insulating cylinder 3, with symmetrical T-shaped grooves 40 on its outer wall. The shapes of the T-shaped columns 31 and the T-shaped grooves 40 are matched. By inserting the T-shaped columns 31 into the T-shaped grooves 40, the sound-insulating cylinder 3 and the inner cylinder 4 are snap-fitted together. This installation method facilitates disassembly and replacement of the inner cylinder 4. The outer diameter of the sound-insulating cylinder 3 matches the inner diameter of the mixing tank 1, and the sound-insulating cylinder 3 and the mixing tank 1 are fixedly connected by bolts, facilitating installation and disassembly.

[0028] One end of the mixing tank 1 is equipped with a tank cover 5, which has an inlet 50 and an outlet 51. The inlet 50 is used to add the material to be mixed into the equipment, and the outlet 51 is used to discharge the mixed concrete. Both the inlet 50 and the outlet 51 are equipped with sealing caps 7. A sealing gasket 70 is provided on the left end face of the sealing cap 7. The sealing gasket 70 is adapted to the shape of the outlet 71 and is bonded to the sealing cap 7 to ensure that the sealing cap 7 fits tightly with the tank cover 5, increasing the sealing performance and preventing material leakage and noise leakage. A handle 71 is also provided on the left end face of the sealing cap 7. The handle 71 is welded to the sealing cap 7 to facilitate manual opening or closing of the sealing cap 7 by the user.

[0029] A motor 6 is located at the center of the other end face of the mixing tank 1. The motor 6 is fixedly connected to the mixing tank 1 by bolts, ensuring the stability of the motor 6. The output shaft of the motor 6 extends into the interior of the inner cylinder 4, and a U-shaped plate 60 is provided at the end of the output shaft. The output shaft of the motor 6 is welded and fixed to the U-shaped plate 60. A spiral stirring blade 61 is provided between the two arms of the U-shaped plate 60. The spiral stirring blade 61 is welded and fixed to the U-shaped plate 60. The diameter of the spiral stirring blade 61 is adapted to the inner diameter of the inner cylinder 4. This design allows the spiral stirring blade 61 to effectively stir the material inside the inner cylinder 4.

[0030] The working principle is as follows: First, the soundproof cylinder 3 is fixed inside the mixing tank 1 with bolts. Then, the inner cylinder 4 is engaged inside the soundproof cylinder 3 through the cooperation of the T-shaped column 31 and the T-shaped groove 40. Next, the motor 6 is connected to an external power source, and the output shaft of the motor 6 starts to rotate, driving the U-shaped plate 60 and the spiral mixing blade 61 to rotate at a constant speed. The user manually opens the sealing cover 7 on the feed port 50, adds the material to be mixed into the inner cylinder 4, and then closes the sealing cover 7. When the output shaft of the motor 6 rotates in the forward direction, the spiral mixing blade 61 rotates in the forward direction to mix the material. After mixing is completed, the output shaft of the motor 6 rotates in the reverse direction, and the spiral mixing blade 61 rotates in the reverse direction. The mixture inside the inner cylinder 4 is pushed out from the discharge port 51 by the spiral mixing blade 61, and the user can collect and use the mixed concrete.

[0031] The above are merely embodiments of this utility model. The circuits, electronic components, and modules involved are all prior art, fully achievable by those skilled in the art, and require no further explanation. The content protected by this application does not involve improvements to the software or methods. Commonly known structures and characteristics in the solution are not described in detail here. Those skilled in the art are aware of all common technical knowledge in the field to which this utility model pertains prior to the application date or priority date, are able to access all existing technologies in that field, and possess the ability to apply conventional experimental methods prior to that date. Those skilled in the art can, under the guidance of this application, improve and implement this solution in conjunction with their own capabilities. Some typical known structures or methods should not be obstacles for those skilled in the art to implement this application. It should be noted that those skilled in the art can make several modifications and improvements without departing from the structure of this utility model. These should also be considered within the scope of protection of this utility model, and will not affect the effectiveness of the implementation of this utility model or the practicality of the patent.

Claims

1. A concrete mixing equipment with noise reduction function, comprising: A mixing tank (1) is hollow cylindrical inside. The outer wall of the mixing tank (1) is provided with multiple support columns (2). The mixing tank (1) is characterized by having a sound insulation cylinder (3) inside. The outer wall and inner wall of the sound insulation cylinder (3) are hollow areas. The hollow areas are filled with sound-absorbing cotton (30). An inner cylinder (4) is detachably connected inside the sound insulation cylinder (3). A bucket cover (5) is provided at one end of the mixing tank (1). A motor (6) is provided at the center of the other end face of the mixing tank (1). The output shaft of the motor (6) extends into the interior of the inner cylinder (4), and a U-shaped plate (60) is provided at the end of the output shaft. A spiral stirring blade (61) is provided between the two arms of the U-shaped plate (60). The spiral stirring blade (61) extends to the bucket cover (5).

2. The concrete mixing equipment with noise reduction function according to claim 1, characterized in that, The barrel lid (5) is provided with a feed inlet (50) and a discharge outlet (51). Both the feed inlet (50) and the discharge outlet (51) are provided with sealing caps (7). The feed inlet (50) is located above the discharge outlet (51).

3. A concrete mixing equipment with noise reduction function according to claim 2, characterized in that, The sealing cover (7) has a sealing gasket (70) on its left end face. The sealing gasket (70) is adapted to the shape of the discharge port (51). The sealing gasket (70) is bonded and fixed to the sealing cover (7). The sealing cover (7) has a handle (71) on its left end face. The handle (71) is welded and fixed to the sealing cover (7).

4. A concrete mixing equipment with noise reduction function according to claim 1, characterized in that, The outer diameter of the sound insulation cylinder (3) is equal to the inner diameter of the mixing tank (1), and the sound insulation cylinder (3) and the mixing tank (1) are fixedly connected by bolts.

5. A concrete mixing equipment with noise reduction function according to claim 1, characterized in that, The inner wall of the sound insulation cylinder (3) is symmetrically provided with two T-shaped columns (31), and the outer wall of the inner cylinder (4) is symmetrically provided with two T-shaped grooves (40). The sound insulation cylinder (3) and the T-shaped columns (31) are integrally formed, and the shapes of the T-shaped columns (31) and the T-shaped grooves (40) are compatible.

6. A concrete mixing equipment with noise reduction function according to claim 1, characterized in that, The output shaft of the motor (6) is welded and fixed to the U-shaped plate (60), the spiral stirring blade (61) is welded and fixed to the U-shaped plate (60), and the diameter of the spiral stirring blade (61) is adapted to the inner diameter of the inner cylinder (4).