A concrete mixer

By introducing a mixing mechanism and transmission components into the vertical shaft concrete mixer, the mixing rod rotates in opposite directions to the tank, solving the problem of insufficient mixing force on the outside and achieving uniform mixing of the concrete.

CN224489562UActive Publication Date: 2026-07-14

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Filing Date
2025-10-10
Publication Date
2026-07-14

AI Technical Summary

Technical Problem

The existing vertical shaft concrete mixer has a relatively small mixing force on the outer side during mixing, which leads to uneven mixing and affects the quality of the concrete.

Method used

A concrete mixer comprising a base frame, a stirring rod, a stirring mechanism, and a transmission assembly was designed. The stirring rod and the stirring frame are rotated inside the tank by a motor-driven shaft, and the stirring rod and the tank are rotated in opposite directions by a universal ball and a transmission gear system to ensure thorough mixing.

Benefits of technology

This ensures thorough mixing of the concrete inside the tank, preventing uneven mixing and improving the mixing quality of the concrete.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the field of stirrers, concretely is a kind of concrete stirrer, including base frame and stirring rod, the inside rotation of base frame is connected with jar body, the stirring rod is used in cooperation with jar body, the surface of stirring rod is fixedly installed with three stirring frame, the top of base frame is provided with stirring mechanism, the stirring mechanism is used in cooperation with stirring rod, the stirring mechanism includes motor fixedly installed in the top of base frame;By setting stirring mechanism, when motor drives rotating shaft to rotate, rotating shaft drives stirring rod to rotate by connecting frame, and the intermediate position of stirring rod is supported by universal ball and second support, make stirring rod and stirring frame around the outside of jar body interior stir, simultaneously by transmission gear around the surface of gear disc rotation, so that stirring rod drives stirring frame to rotate, to carry out sufficient stirring to the concrete in jar body, avoid the situation that mixing is not uniform to affect mixing quality.
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Description

Technical Field

[0001] This utility model relates to the field of mixers, specifically a concrete mixer. Background Technology

[0002] A concrete mixer is a mechanical device that mixes cement, sand and gravel aggregates, water and admixtures in a specific ratio to produce a uniform concrete mixture. According to the working principle, it is divided into free-fall type and forced type; according to the structure, it is divided into roller type, vertical shaft type, horizontal shaft forced type, etc.; according to the mobility, it is divided into fixed type and mobile type. It is widely used in construction, road, bridge and other engineering fields.

[0003] Currently, in existing vertical shaft concrete mixers, the mixing structure is mostly centered, resulting in less mixing force on the outer parts. This not only requires a lot of time for mixing but also easily leads to uneven mixing of the concrete, thus affecting the mixing quality. Therefore, a concrete mixer is proposed to address the above problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, in the case of concrete mixers, the mixing structure is mostly centered, resulting in a smaller mixing force on the outer parts, which affects the mixing quality of the concrete. This invention proposes a concrete mixer.

[0005] The technical solution adopted by this utility model to solve its technical problem is: a concrete mixer, including a base frame and a mixing rod, a tank is rotatably connected inside the base frame, the mixing rod is used in conjunction with the tank, three mixing frames are fixedly installed on the surface of the mixing rod, and a mixing mechanism is provided on the top of the base frame, which is used in conjunction with the mixing rod;

[0006] The stirring mechanism includes a motor fixedly mounted on the top of a base frame. A rotating shaft is fixedly connected to the output end of the motor. One end of the rotating shaft passes through the base frame and is rotatably connected to the inner cavity of the base frame. A connecting frame is fixedly fitted onto one end of the rotating shaft. One end of the connecting frame is rotatably fitted onto the surface of a stirring rod. A first bracket is fixedly installed inside the base frame. The rotating shaft is rotatably fitted inside the first bracket. A gear disk is fixedly installed at the bottom of the first bracket. The inner cavity of the gear disk is slidably connected to the surface of the rotating shaft. A transmission gear is fixedly fitted onto one end of the stirring rod. The surface of the transmission gear meshes with the surface of the gear disk. A second bracket is fixedly installed inside the base frame. A universal ball is fixedly installed onto the surface of the stirring rod and rotatably fitted into the second bracket. A transmission assembly is provided on the surface of the rotating shaft. The transmission assembly is used in conjunction with the tank.

[0007] Preferably, a support sleeve is fixedly installed at the bottom of the tank, and a support block is fixedly installed inside the base frame, with the inner cavity of the support sleeve and the surface of the support block being slidably connected.

[0008] Preferably, a first positioning block is fixedly mounted on the surface of the rotating shaft, and the first positioning block is rotatably connected inside the first bracket.

[0009] Preferably, the connecting frame has a positioning groove inside, and a second positioning block is fixedly installed on the surface of the stirring rod, with the second positioning block rotatably connected inside the positioning groove.

[0010] Preferably, the transmission assembly includes a first gear fixedly sleeved on the surface of the rotating shaft, a rotating rod rotatably connected inside the base frame, a second gear fixedly sleeved on the surface of the rotating rod, a synchronous toothed belt jointly sleeved on the surfaces of the second gear and the first gear, a third gear fixedly sleeved on the surface of the rotating rod, and a fourth gear fixedly sleeved on the surface of the tank body, the surface of the fourth gear meshing with the surface of the third gear.

[0011] Preferably, two positioning frames are fixedly installed inside the base frame, and the inner walls of the two positioning frames are provided with limit grooves. Limit blocks are fixedly installed on both sides of the rotating rod surface, and the limit blocks are rotatably connected inside the limit grooves.

[0012] Preferably, a support frame is fixedly installed inside the base frame, and the rotating rod is rotatably sleeved inside the support frame.

[0013] The advantages of this utility model are:

[0014] 1. This utility model, by setting up a stirring mechanism, when the motor drives the rotating shaft to rotate, the rotating shaft drives the stirring rod to rotate through the connecting frame, and the middle position of the stirring rod is supported by the universal ball and the second bracket, so that the stirring rod and the stirring frame stir around the outer side of the tank. At the same time, the transmission gear rotates around the surface of the gear disk, so that the stirring rod drives the stirring frame to rotate, thereby fully stirring the concrete in the tank and avoiding uneven mixing that would affect the mixing quality;

[0015] 2. By setting up a transmission component, when the rotating shaft rotates, the rotating shaft drives the rotating rod to rotate through the first gear, the second gear and the synchronous toothed belt. The rotating rod drives the third gear to rotate, and the third gear drives the tank to rotate through the fourth gear, so that the tank and the mixing rod rotate in opposite directions, thereby improving the mixing effect of the concrete. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the concrete mixer structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the stirring mechanism of this utility model;

[0019] Figure 3 This utility model Figure 2 A magnified structural diagram of part A;

[0020] Figure 4 This is a schematic diagram of the right-side structure of this utility model;

[0021] Figure 5 This utility model Figure 4 A schematic diagram of the enlarged structure of part B;

[0022] Figure 6 This is a schematic diagram of the connecting frame structure of this utility model.

[0023] In the diagram: 1. Base frame; 2. Tank body; 21. Support sleeve; 22. Support block; 3. Stirring mechanism; 31. Motor; 32. Rotating shaft; 3201. First positioning block; 33. First bracket; 34. Gear disk; 35. Connecting frame; 3501. Positioning groove; 3502. Second positioning block; 36. Transmission gear; 37. Second bracket; 38. Universal ball; 39. Transmission assembly; 3901. First gear; 3902. Rotating rod; 3903. Second gear; 3904. Synchronous toothed belt; 3905. Third gear; 3906. Fourth gear; 3907. Positioning frame; 3908. Limiting block; 3909. Limiting groove; 3910. Support frame; 4. Stirring rod; 41. Stirring frame. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.

[0025] The following is in conjunction with the appendix Figure 1-6 This application will be described in further detail.

[0026] This application discloses a concrete mixer. (Refer to...) Figure 1 , Figure 2 and Figure 3 A concrete mixer includes a base frame 1 and a mixing rod 4. A tank 2 is rotatably connected inside the base frame 1. The mixing rod 4 is used in conjunction with the tank 2. Three mixing frames 41 are fixedly installed on the surface of the mixing rod 4. A mixing mechanism 3 is provided on the top of the base frame 1. The mixing mechanism 3 is used in conjunction with the mixing rod 4.

[0027] The stirring mechanism 3 includes a motor 31 fixedly installed on the top of the base frame 1. The output end of the motor 31 is fixedly connected to a rotating shaft 32. One end of the rotating shaft 32 passes through the base frame 1 and is rotatably connected to the inner cavity of the base frame 1. A connecting frame 35 is fixedly sleeved on one end of the rotating shaft 32. One end of the connecting frame 35 is rotatably sleeved on the surface of the stirring rod 4. A first bracket 33 is fixedly installed inside the base frame 1. The rotating shaft 32 is rotatably sleeved inside the first bracket 33. A gear disk 34 is fixedly installed at the bottom of the first bracket 33. The inner cavity of the gear disk 34 is slidably connected to the surface of the rotating shaft 32. A transmission gear 36 is fixedly sleeved on one end of the stirring rod 4. The surface of the transmission gear 36 meshes with the surface of the gear disk 34. A second bracket 37 is fixedly installed inside the base frame 1. A universal ball 38 is fixedly installed on the surface of the stirring rod 4. The universal ball 38 is rotatably sleeved inside the second bracket 37. A transmission assembly 39 is provided on the surface of the rotating shaft 32. The transmission assembly 39 is used in conjunction with the tank 2.

[0028] After the concrete raw materials are added to the inside of the tank 2, the motor 31 drives the rotating shaft 32 to rotate. The rotating shaft 32 drives the stirring rod 4 to rotate through the connecting frame 35. The stirring rod 4 is supported in the middle position by the second bracket 37 and the universal ball 38, so that the stirring rod 4 rotates inside the tank 2. At the same time, the transmission gear 36 rotates around the outside of the gear disk 34. Through the meshing of the transmission gear 36 with the surface of the gear disk 34, the stirring rod 4 rotates on its own axis while rotating around the gear disk 34. Thus, the stirring rod 4 and the stirring frame 41 simultaneously stir the concrete raw materials, so that the concrete raw materials are fully mixed inside the tank 2 to ensure the uniformity of the concrete mixture. The transmission component 39 drives the tank 2 to rotate, and the tank 2 and the stirring rod 4 rotate in opposite directions, thereby improving the mixing effect of the concrete.

[0029] Reference Figure 1 and Figure 4 A support sleeve 21 is fixedly installed at the bottom of the tank body 2, and a support block 22 is fixedly installed inside the base frame 1. The inner cavity of the support sleeve 21 is slidably connected to the surface of the support block 22. Through the slidable connection between the inner cavity of the support sleeve 21 and the surface of the support block 22, the support block 22 and the support sleeve 21 can support the position of the tank body 2, while avoiding affecting the rotation of the tank body 2.

[0030] Reference Figure 2 and Figure 3 A first positioning block 3201 is fixedly installed on the surface of the rotating shaft 32. The first positioning block 3201 is rotatably connected inside the first bracket 33. By rotatably connecting the first positioning block 3201 inside the first bracket 33, the position of the rotating shaft 32 can be effectively stabilized, and the position of the rotating shaft 32 can be prevented from shifting and affecting the transmission effect.

[0031] Reference Figure 6 The connecting frame 35 has a positioning groove 3501 inside, and a second positioning block 3502 is fixedly installed on the surface of the stirring rod 4. The second positioning block 3502 is rotatably connected to the inside of the positioning groove 3501. By rotatably connecting the second positioning block 3502 to the inside of the positioning groove 3501, the position of the stirring rod 4 inside the connecting frame 35 can be effectively stabilized, preventing the stirring rod 4 from separating from the connecting frame 35 and affecting normal use, and also preventing the normal rotation of the stirring rod 4 from being affected.

[0032] Reference Figure 2 , Figure 3 and Figure 4 The transmission assembly 39 includes a first gear 3901 fixedly sleeved on the surface of the rotating shaft 32, a rotating rod 3902 rotatably connected inside the base frame 1, a second gear 3903 fixedly sleeved on the surface of the rotating rod 3902, a synchronous toothed belt 3904 jointly sleeved on the surfaces of the second gear 3903 and the first gear 3901, a third gear 3905 fixedly sleeved on the surface of the rotating rod 3902, and a fourth gear 3906 fixedly sleeved on the surface of the tank body 2, with the surface of the fourth gear 3906 meshing with the surface of the third gear 3905; when the rotating shaft 32 rotates... The rotating shaft 32 drives the first gear 3901 to rotate. The first gear 3901 drives the second gear 3903 to rotate through the synchronous toothed belt 3904. The second gear 3903 drives the rotating rod 3902 to rotate. The rotating rod 3902 drives the third gear 3905 to rotate. The surface of the third gear 3905 meshes with the surface of the fourth gear 3906, so that the third gear 3905 drives the tank 2 to rotate through the fourth gear 3906. Thus, the transmission assembly 39 makes the tank 2 and the mixing rod 4 rotate in opposite directions, thereby improving the mixing effect of the concrete.

[0033] Reference Figure 4 and Figure 5Two positioning frames 3907 are fixedly installed inside the base frame 1. Each positioning frame 3907 has a limiting groove 3909 on its inner wall. Limiting blocks 3908 are fixedly installed on both sides of the surface of the rotating rod 3902. The limiting blocks 3908 are rotatably connected inside the limiting groove 3909. A support frame 3910 is fixedly installed inside the base frame 1. The rotating rod 3902 is rotatably sleeved inside the support frame 3910. The limiting blocks 3908 are rotatably connected inside the limiting groove 3909, so that the two positioning frames 3907 can stabilize the positions of the two ends of the rotating rod 3902 and prevent the rotating rod 3902 from shifting. The support frame 3910 can support the middle position of the rotating rod 3902 and prevent the rotating rod 3902 from bending and affecting normal use.

[0034] Working principle: When concrete mixing is required, concrete raw materials are added to the inside of tank 2. Then, motor 31 drives shaft 32 to rotate, and the first positioning block 3201 stabilizes the position of shaft 32 inside the first bracket 33. Shaft 32 drives mixing rod 4 to rotate through connecting frame 35. The second positioning block 3502 and positioning groove 3501 prevent mixing rod 4 from separating from connecting frame 35. The second bracket 37 and universal ball 38 support the middle position of mixing rod 4, allowing mixing rod 4 to rotate inside tank 2. At the same time, transmission gear 36 rotates around the outside of gear disk 34. Through the meshing of transmission gear 36 with the surface of gear disk 34, mixing rod 4 rotates on its own axis while rotating around gear disk 34. Thus, mixing rod 4 and mixing frame 41 simultaneously mix concrete raw materials. The mixing process ensures that the concrete raw materials are fully mixed inside the tank 2, guaranteeing the uniformity of the concrete mixture. Simultaneously, the rotating shaft 32 rotates, causing the second gear 3903 to rotate via the first gear 3901 and the synchronous toothed belt 3904. The second gear 3903 drives the rotating rod 3902 to rotate, and is rotatably connected to the limiting groove 3909 via the limiting block 3908. This stabilizes the positions of both ends of the rotating rod 3902 via the two positioning frames 3907, and stabilizes the middle position of the rotating rod 3902 via the support frame 3910. This causes the rotating rod 3902 to drive the third gear 3905 to rotate, which in turn drives the tank 2 to rotate via the fourth gear 3906. The position of the tank 2 is stabilized by the support block 22 and the support sleeve 21, causing the tank 2 and the mixing rod 4 to rotate in opposite directions, thereby improving the mixing effect of the concrete.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A concrete mixer, characterized in that: It includes a base frame (1) and a stirring rod (4). The base frame (1) is rotatably connected to a tank (2). The stirring rod (4) is used in conjunction with the tank (2). Three stirring racks (41) are fixedly installed on the surface of the stirring rod (4). A stirring mechanism (3) is provided on the top of the base frame (1). The stirring mechanism (3) is used in conjunction with the stirring rod (4). The stirring mechanism (3) includes a motor (31) fixedly installed on the top of the base frame (1). The output end of the motor (31) is fixedly connected to a rotating shaft (32). One end of the rotating shaft (32) passes through the base frame (1) and is rotatably connected to the inner cavity of the base frame (1). A connecting frame (35) is fixedly sleeved on one end of the rotating shaft (32). One end of the connecting frame (35) is rotatably sleeved on the surface of the stirring rod (4). A first bracket (33) is fixedly installed inside the base frame (1). The rotating shaft (32) is rotatably sleeved inside the first bracket (33). The bottom of the first bracket (33) is fixedly installed with... There is a gear disk (34), the inner cavity of the gear disk (34) is slidably connected to the surface of the rotating shaft (32), one end of the stirring rod (4) is fixedly fitted with a transmission gear (36), the surface of the transmission gear (36) meshes with the surface of the gear disk (34), a second bracket (37) is fixedly installed inside the base frame (1), a universal ball (38) is fixedly installed on the surface of the stirring rod (4), the universal ball (38) is rotatably fitted inside the second bracket (37), and a transmission assembly (39) is provided on the surface of the rotating shaft (32), the transmission assembly (39) is used in conjunction with the tank (2).

2. The concrete mixer according to claim 1, characterized in that: A support sleeve (21) is fixedly installed at the bottom of the tank (2), and a support block (22) is fixedly installed inside the base frame (1). The inner cavity of the support sleeve (21) is slidably connected to the surface of the support block (22).

3. A concrete mixer according to claim 1, characterized in that: The first positioning block (3201) is fixedly installed on the surface of the rotating shaft (32), and the first positioning block (3201) is rotatably connected to the inside of the first bracket (33).

4. A concrete mixer according to claim 1, characterized in that: The connecting frame (35) has a positioning groove (3501) inside, and a second positioning block (3502) is fixedly installed on the surface of the stirring rod (4). The second positioning block (3502) is rotatably connected to the inside of the positioning groove (3501).

5. A concrete mixer according to claim 1, characterized in that: The transmission assembly (39) includes a first gear (3901) fixedly sleeved on the surface of the rotating shaft (32), a rotating rod (3902) rotatably connected inside the base frame (1), a second gear (3903) fixedly sleeved on the surface of the rotating rod (3902), a synchronous toothed belt (3904) jointly sleeved on the surfaces of the second gear (3903) and the first gear (3901), a third gear (3905) fixedly sleeved on the surface of the rotating rod (3902), and a fourth gear (3906) fixedly sleeved on the surface of the tank (2), the surface of the fourth gear (3906) meshing with the surface of the third gear (3905).

6. A concrete mixer according to claim 5, characterized in that: Two positioning frames (3907) are fixedly installed inside the base frame (1). The inner walls of the two positioning frames (3907) are provided with limiting grooves (3909). Limiting blocks (3908) are fixedly installed on both sides of the surface of the rotating rod (3902). The limiting blocks (3908) are rotatably connected to the inside of the limiting grooves (3909).

7. A concrete mixer according to claim 5, characterized in that: The base frame (1) has a support frame (3910) fixedly installed inside, and the rotating rod (3902) is rotatably sleeved inside the support frame (3910).