Civil engineering concrete mixing device

Abstract

The utility model is suitable for the technical field of concrete processing, and provides a civil engineering concrete mixing device which comprises a mixing barrel used for storing concrete raw materials. The extension cylinder is detachably mounted on the material mixing cylinder; the stirring rod is rotationally mounted on the extension cylinder and extends into the mixing cylinder, and the stirring rod is used for mixing concrete raw materials; the protective shell is fixed on the extension cylinder; and the first motor is fixed to the extending cylinder, and bevel gears are installed on an output shaft of the first motor and the stirring rod. The civil engineering concrete mixing device provided by the scheme is simple in structure and convenient to disassemble, so that the civil engineering concrete mixing device can be conveniently and comprehensively cleaned, and reuse of the device is prevented from being affected after concrete is solidified.

Description

Technical Field

[0001] The utility model belongs to the technical field of concrete processing, and particularly relates to a concrete mixing device for civil engineering. Background Art

[0002] Concrete is one of the most important civil engineering materials in modern times. It is a kind of artificial stone prepared by mixing cementitious materials, granular aggregates (also known as aggregates), water, and additives and admixtures added when necessary in a certain proportion, and then uniformly stirred, densely formed, and cured. Concrete mixing is an operation method of mixing materials such as cement, lime, and water evenly.

[0003] In the existing concrete mixing device, dead corners are likely to appear in the mixing tank, the discharging is incomplete, and it cannot be cleaned in time after mixing and is not convenient for comprehensive cleaning. The concrete coagulates in the mixing tank, seriously affecting the progress of the project, increasing the workload of workers, and greatly reducing the work efficiency. Content of the Utility Model

[0004] The utility model provides a concrete mixing device for civil engineering, aiming to solve the problems that dead corners are likely to appear in the mixing tank of the existing concrete mixing device and the discharging is incomplete as mentioned in the above background art.

[0005] To solve the above problems, the utility model is realized as follows. A concrete mixing device for civil engineering includes: a mixing cylinder for storing concrete raw materials; an extension cylinder detachably installed on the mixing cylinder; a stirring rod rotatably installed on the extension cylinder and extending into the mixing cylinder for mixing concrete raw materials; a protective shell fixed on the extension cylinder; a first motor fixed on the extension cylinder, with bevel gears installed on the output shaft of the first motor and the stirring rod, and the two bevel gears meshing with each other; an auxiliary discharging assembly arranged on the mixing cylinder for assisting in discharging concrete.

[0006] Preferably, the auxiliary discharging assembly includes two scraping blades and an operation cylinder. The two scraping blades are both fixed on the stirring rod, and both are in contact with the inner walls of the mixing cylinder and the extension cylinder. The scraping blades are used to scrape off the attached concrete. The operation cylinder is installed on the side of the mixing cylinder away from the extension cylinder to provide a channel for discharging concrete and adding concrete raw materials.

[0007] Preferably, a support frame is hinged on the mixing cylinder. The bottom of the support frame is fixed with a base placed on the ground, and a second motor is installed on the support frame. The output shaft of the second motor is fixedly connected to the mixing cylinder.

[0008] Preferably, a mounting frame is installed inside the mixing cylinder. A limiting block is rotatably installed on the mounting frame. A limiting cylinder is fixed on the stirring rod, and the limiting cylinder can be movably sleeved outside the limiting block.

[0009] Preferably, a maintenance opening is provided on one side of the protective shell. A baffle for closing the maintenance opening is detachably installed on one side of the protective shell. Lubricating oil is applied between the two bevel gears.

[0010] Preferably, a second fixing ring and a first fixing ring are respectively installed on the mixing cylinder and the extension cylinder. A plurality of fixing bolts are threadedly installed on the first fixing ring, and all the plurality of fixing bolts can be threadedly connected to the second fixing ring.

[0011] Preferably, a sealing ring is installed on one side of the extension cylinder close to the mixing cylinder. The sealing ring can be in contact with the mixing cylinder. The support frame is U-shaped, and anti-slip patterns are provided at the bottom of the base.

[0012] Compared with the related art, the civil engineering concrete mixing device provided by the present utility model has the following

[0013] Beneficial effects:

[0014] Compared with the prior art, the civil engineering concrete mixing device provided by this solution forms a complete storage structure by setting the mixing cylinder and the extension cylinder to provide space for concrete mixing. By disassembling the mixing cylinder and the extension cylinder, the inside of the mixing cylinder can be exposed, facilitating a comprehensive cleaning of the mixing cylinder. By setting the first motor and driving the stirring rod to rotate through the cooperative transmission of the two bevel gears, the mixing of concrete raw materials can be realized. By the second motor, the angle of the mixing cylinder can be adjusted, facilitating discharging and feeding. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 is the main sectional view structure diagram of a civil engineering concrete mixing device provided by the present utility model;

[0016] Figure 2 is the main view structure diagram of a civil engineering concrete mixing device provided by the present utility model;

[0017] Figure 3 is Figure 1 the enlarged structure diagram of part A shown in ;

[0018] Figure 4 is the three-dimensional structure diagram of the limiting cylinder and the limiting block in the present utility model.

[0019] Reference numerals: 1, mixing cylinder; 2, extension cylinder; 3, stirring rod; 4, protective shell; 5, first motor; 6, bevel gear; 7, scraping blade; 8, operation cylinder; 9, mounting bracket; 10, limit block; 11, limit cylinder; 12, support frame; 13, base; 14, second motor; 15, first fixing ring; 16, second fixing ring; 17, fixing bolt; 18, sealing ring. Detailed implementation manners

[0020] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this application belongs; the terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above drawings are intended to cover non-exclusive inclusion. The terms "first", "second", etc. in the specification and claims of this application or the above drawings are used to distinguish different objects and not to describe a specific order; the terms "inner", "outer", "left", "right" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present utility model.

[0021] Reference to "embodiment" herein means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of this application. The phrase appears in various places in the specification and does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0022] An embodiment of the present utility model provides a civil engineering concrete mixing device, as Figures 1-4 shown, the civil engineering concrete mixing device includes: a mixing cylinder 1 for storing concrete raw materials; an extension cylinder 2 detachably mounted on the mixing cylinder 1; a stirring rod 3 rotatably mounted on the extension cylinder 2 and extending into the mixing cylinder 1 for mixing concrete raw materials; a protective shell 4 fixed on the extension cylinder 2; a first motor 5 fixed on the extension cylinder 2, with bevel gears 6 mounted on the output shaft of the first motor 5 and the stirring rod 3 respectively, and the two bevel gears 6 meshing with each other; an auxiliary discharging assembly provided on the mixing cylinder 1 for assisting in discharging concrete.

[0023] In this embodiment, the mixing drum 1 serves as the main part for storing concrete raw materials. The mixing drum 1 provides the necessary space for the mixing process. The extension drum 2 is detachably mounted on the mixing drum 1. This design not only facilitates the assembly and maintenance of the mixing device but also makes the mixing process more flexible. The presence of the extension drum 2 also provides a stable support platform for the mixing rod 3 to ensure the mixing effect. The mixing rod 3 directly participates in the concrete mixing process. The protective shell 4 mainly serves to protect the internal mechanical components (such as bevel gears 6) from the external environment, such as dust prevention and waterproofing. The first motor 5 provides power for the mixing rod 3, and through the transmission of the bevel gears 6, the conversion and transmission of power are achieved. The meshing design of the bevel gears 6 makes the power transmission more stable, reduces vibration and noise, and at the same time improves the transmission efficiency. This design also enables the rotation speed and torque of the mixing rod 3 to be adjusted according to needs to adapt to the mixing requirements of different concretes.

[0024] In a further preferred embodiment of the present utility model, the auxiliary discharging assembly includes two scraping blades 7 and an operation cylinder 8. Both of the two scraping blades 7 are fixed on the mixing rod 3. Both of the two scraping blades 7 are in contact with the inner walls of the mixing drum 1 and the extension drum 2. The scraping blades 7 are used to scrape off the attached concrete. The operation cylinder 8 is installed on one side of the mixing drum 1 away from the extension drum 2. The operation cylinder 8 provides a passage for discharging concrete and adding concrete raw materials.

[0025] In this embodiment, during the mixing process, as the mixing rod 3 rotates, the scraping blades 7 continuously scrape off the concrete attached to the inner wall, effectively preventing the residue and condensation of concrete. This design not only improves the mixing efficiency but also ensures the cleanliness inside the mixing tank, reducing subsequent cleaning work. The operation cylinder 8, as the passage for discharging concrete and adding concrete raw materials, greatly facilitates the operation process. After the mixing is completed, the concrete can be conveniently discharged through the operation cylinder 8, avoiding the problem of incomplete discharging in traditional mixing devices. At the same time, the operation cylinder 8 also supports adding additional concrete raw materials into the mixing drum 1 during the mixing process, improving the flexibility and adaptability of the mixing device.

[0026] In a further preferred embodiment of the present utility model, a support frame 12 is hinged on the mixing drum 1. A base 13 placed on the ground is fixed at the bottom of the support frame 12. A second motor 14 is installed on the support frame 12. The output shaft of the second motor 14 is fixedly connected to the mixing drum 1.

[0027] In this embodiment, the support frame 12 provides a stable support structure for the mixing cylinder 1. The design of the support frame 12 takes into account its strength and stability to ensure that the mixing cylinder 1 does not shake or tilt during the mixing process. Connected by a hinge, the support frame 12 also allows the mixing cylinder 1 to be tilted and adjusted within a certain range, facilitating the discharge of concrete. The base 13 provides a solid foundation for the entire mixing device to ensure the stability and safety of the mixing device during operation. The second motor 14 can directly drive the mixing cylinder 1 to rotate, thereby changing the tilt angle of the mixing cylinder 1 or performing other forms of movement, increasing the discharging effect.

[0028] In a further preferred embodiment of the present utility model, an installation frame 9 is installed inside the mixing cylinder 1. A limiting block 10 is rotatably installed on the installation frame 9. A limiting cylinder 11 is fixed on the stirring rod 3. The limiting cylinder 11 can be movably sleeved outside the limiting block 10.

[0029] In this embodiment, the shape and size of the limiting cylinder 11 match those of the limiting block 10, enabling the limiting cylinder 11 to be movably sleeved outside the limiting block 10. This design restricts the radial movement freedom of the stirring rod 3, ensuring that the stirring rod 3 always remains in contact with the limiting block 10 during rotation, thereby achieving precise control of the movement trajectory of the stirring rod 3 and providing additional support for the stirring rod 3, thus increasing the stability of the stirring rod 3 during rotation.

[0030] In a further preferred embodiment of the present utility model, a maintenance opening is provided on one side of the protective shell 4. A baffle for closing the maintenance opening is detachably installed on one side of the protective shell 4. Lubricating oil is applied between the two bevel gears 6.

[0031] In this embodiment, the design of the maintenance opening and the baffle enables the baffle to be conveniently opened when it is necessary to repair or replace components such as gears inside the protective shell 4, without having to disassemble the entire protective shell 4, thereby greatly improving the convenience of maintenance. In addition, the presence of the baffle can also protect the maintenance opening from being contaminated by dust, debris, etc. during normal use, keeping the inside of the protective shell 4 clean. The lubricating oil can reduce the friction and wear between the gears, reduce noise and vibration, thereby extending the service life of the gears. At the same time, good lubrication can also improve the transmission efficiency of the gears, making the rotation of the stirring rod 3 smoother and more stable.

[0032] In a further preferred embodiment of the present utility model, a second fixing ring 16 and a first fixing ring 15 are respectively installed on the mixing cylinder 1 and the extension cylinder 2. A plurality of fixing bolts 17 are threadedly installed on the first fixing ring 15. All of the plurality of fixing bolts 17 can be threadedly connected to the second fixing ring 16.

[0033] In this embodiment, the first fixing ring 15 and the second fixing ring 16 serve as intermediaries connecting the mixing cylinder 1 and the extension cylinder 2 and are connected by fixing bolts 17. The uniform distribution of the plurality of fixing bolts 17 can ensure that the connection force between the extension cylinder 2 and the mixing cylinder 1 is evenly distributed, thereby improving the connection stability. In addition, the threaded connection method makes the assembly and disassembly processes more convenient, and workers can easily tighten or loosen the bolts to adjust or replace the extension cylinder 2.

[0034] In a further preferred embodiment of the present utility model, a sealing ring 18 is installed on one side of the extension cylinder 2 close to the mixing cylinder 1. The sealing ring 18 can be in contact with the mixing cylinder 1. The support frame 12 is U-shaped, and anti-slip lines are provided at the bottom of the base 13.

[0035] In this embodiment, the sealing ring 18 is in close contact with the mixing cylinder 1, forming an effective sealing barrier. This design can prevent concrete or other materials from leaking out from the gap between the mixing cylinder 1 and the extension cylinder 2 during the mixing process, keeping the inside of the mixing device clean and making full use of the materials. The support frame 12 is designed as a U-shaped structure. This shape not only provides sufficient support strength but also can better adapt to the shape and weight distribution of the mixing cylinder 1. The anti-slip lines can increase the friction between the base 13 and the ground, preventing the mixing device from sliding or shifting due to external forces during operation.

[0036] In summary, compared with the related technologies, this device forms a complete storage structure by setting the mixing cylinder 1 in cooperation with the extension cylinder 2 to provide space for concrete mixing. By splitting the mixing cylinder 1 and the extension cylinder 2, the inside of the mixing cylinder 1 can be exposed, facilitating a comprehensive cleaning of the mixing cylinder 1. By setting the first motor 5 and driving the stirring rod 3 to rotate under the cooperative transmission of the two bevel gears 6, the mixing of concrete raw materials can be achieved. By means of the second motor 14, the angle of the mixing cylinder 1 can be adjusted, facilitating discharging and feeding.

[0037] In several embodiments provided by this application, it should be understood that the disclosed device can be implemented in other ways.

[0038] The above embodiments are only used to illustrate the technical solutions of the present utility model, rather than limiting the protection scope of the utility model. Obviously, the described embodiments are only some embodiments of the present utility model, rather than all embodiments. Based on these embodiments, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the scope of protection of the present utility model. Although the present utility model has been described in detail with reference to the above embodiments, those of ordinary skill in the art can still, without conflict and without making creative efforts, combine, add or delete the features in the embodiments of the present utility model according to the circumstances or make other adjustments, so as to obtain different technical solutions that essentially do not deviate from the concept of the present utility model, and these technical solutions also fall within the scope of protection of the present utility model.

Claims

1. A civil engineering concrete mixing device, characterized in that: include: A mixing drum, the mixing drum is used to store concrete raw materials; An extension cylinder, the extension cylinder being detachably mounted on the mixing cylinder; A stirring rod, which is rotatably mounted on the extension cylinder and extends into the mixing cylinder, and is used to mix concrete raw materials; A protective shell, wherein the protective shell is fixed on the extension tube; A first motor, wherein the first motor is fixed on the extension tube, and a bevel gear is installed on the output shaft of the first motor and the stirring rod, and the two bevel gears are meshed with each other; An auxiliary discharging assembly is provided on the mixing drum and is used for assisting in discharging concrete.

2. The civil engineering concrete mixing device according to claim 1, characterized in that: The auxiliary discharge assembly includes two scrapers and an operating cylinder. The two scrapers are fixed on the stirring rod. The two scrapers are in contact with the inner walls of the mixing cylinder and the extension cylinder. The scrapers are used to scrape off the attached concrete. The operating cylinder is installed on the side of the mixing cylinder away from the extension cylinder. The operating cylinder provides a channel for discharging concrete and adding concrete raw materials.

3. The civil engineering concrete mixing device according to claim 1, characterized in that: A support frame is hinged on the mixing barrel, a base placed on the ground is fixed at the bottom of the support frame, a second motor is installed on the support frame, and an output shaft of the second motor is fixedly connected to the mixing barrel.

4. The civil engineering concrete mixing device according to claim 1, characterized in that: A mounting frame is installed in the mixing barrel, a limiting block is rotatably installed on the mounting frame, a limiting barrel is fixed on the stirring rod, and the limiting barrel can be movably sleeved outside the limiting block.

5. The civil engineering concrete mixing device according to claim 1, characterized in that: A maintenance port is provided on one side of the protective shell, a baffle for closing the maintenance port is detachably mounted on one side of the protective shell, and lubricating oil is applied between the two bevel gears.

6. The civil engineering concrete mixing device according to claim 1, characterized in that: The mixing tube and the extending tube are respectively provided with a second fixing ring and a first fixing ring. The first fixing ring is threadedly provided with a plurality of fixing bolts, and the plurality of fixing bolts can be threadedly connected with the second fixing ring.

7. The civil engineering concrete mixing device according to claim 3, characterized in that: A sealing ring is installed on one side of the extension tube close to the mixing tube, and the sealing ring can contact the mixing tube. The support frame is U-shaped, and the bottom of the base is provided with anti-slip grooves.

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