A concrete mixer for construction projects
By incorporating a rotating shaft, worm gear, and worm wheel structure within the mixer, the angle of the mixing plate can be varied, thus solving the problem of poor mixing effect in existing technologies, improving the mixing effect, and making it suitable for widespread application.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 中国水电建设集团十五工程局有限公司
- Filing Date
- 2025-08-28
- Publication Date
- 2026-07-31
AI Technical Summary
Existing concrete mixers used in construction projects have limited mixing effects and cannot achieve the cyclical changes of material lifting and pressing.
A concrete mixer for construction engineering was designed. By setting a rotating shaft, worm gear tube, annular plate and worm wheel structure in the mixing tank, the mixing plate can automatically change the angle to realize the cyclic change of material lifting and pressing, and the material discharge is controlled by the discharge hopper and valve structure.
It improves the mixing effect, meets market demand, and is suitable for widespread application.
Smart Images
Figure CN224575906U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of mixers, specifically a concrete mixer for construction engineering. Background Technology
[0002] Concrete is a general term for engineering composite materials in which aggregates are bound together by cementing materials. The term "concrete" usually refers to cement concrete, also known as ordinary concrete, which is made by mixing cement as the cementing material, sand and gravel as aggregates, and water in a certain proportion. It is widely used in civil engineering. A flat-mouth mixer is a vertical flat-mouth processing device used for mixing concrete. Patent CN222628195U, entitled "A Flat-Mouth Concrete Mixer," discloses a flat-mouth mixer for concrete mixing. However, this device has limited mixing effect and cannot achieve material lifting and pressing. Therefore, we designed a concrete mixer for construction engineering with cyclical material lifting and pressing capabilities. Utility Model Content
[0003] This utility model provides a concrete mixer for construction engineering, which solves the defects in the prior art.
[0004] This utility model is achieved through the following technical solution:
[0005] A concrete mixer for construction engineering includes a mixing tank with an opening at the top and a discharge port at the bottom. Support legs are fixed to the bottom side of the mixing tank. A vertical pipe is fixed inside the mixing tank, and a rotating shaft is installed within the vertical pipe. The rotating shaft is rotatably mounted on the mixing tank. A motor for driving the rotating shaft is fixed on the mixing tank. The top of the vertical pipe is rotatably connected to a housing via a bearing. The top of the rotating shaft passes through a through-slot in the housing and is fixedly mounted on the housing. A worm gear is rotatably connected to the outer circumference of the rotating shaft via a bearing. The bottom end of the worm gear is rotatably connected to an annular plate via a one-way bearing. The annular plate is fitted around the outer circumference of the rotating shaft and is fixedly mounted on the vertical pipe via an L-shaped rod. Worm wheels are meshed on both sides of the worm gear. Coaxial connecting shafts are fixedly mounted on the inner circumference of the worm wheels. The connecting shafts are rotatably mounted on the housing and pass through the housing to connect to a mixing plate. Several mixing rods are fixedly mounted on the housing.
[0006] As described above, a concrete mixer for construction engineering has a downwardly inclined discharge hopper fixedly installed at the discharge port, and the discharge hopper is equipped with a valve structure for controlling the discharge.
[0007] As described above, in a concrete mixer for construction engineering, the valve structure includes a baffle, a slot is provided on the discharge hopper, the baffle is slidably fitted in the slot, one side of the baffle is rotatably mounted on the mixing tank via a hinge shaft, and a limiting plate is fitted on the other side of the baffle. The limiting plate is fixedly mounted on the mixing tank and can limit the movement of the baffle.
[0008] As described above, in a concrete mixer for construction engineering, the vertical pipe, rotating shaft, housing, worm gear tube, one-way bearing, and annular plate are coaxially arranged.
[0009] As described above, in a concrete mixer for construction engineering, the connecting shafts are arranged symmetrically at the center. One end of the connecting shaft is rotatably mounted on the inner wall of the box body via a bearing, and the other end of the connecting shaft is rotatably mounted in a reserved hole opened in the box body via a bearing.
[0010] As described above, in a concrete mixer for construction engineering, the top of the vertical pipe is rotatably connected to the housing via a sealed bearing.
[0011] The advantages of this utility model are: the structure is simple and the design is ingenious. The stirring plate can automatically change its angle, thereby realizing the cyclical change of material lifting and pressing, improving the stirring effect, and can also maintain a fixed angle to meet market demand and is suitable for promotion. Attached Figure Description
[0012] 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 some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0013] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 for Figure 1 A-direction view.
[0014] Reference numerals: 1. Mixing tank, 2. Discharge port, 3. Support leg, 4. Vertical pipe, 5. Rotating shaft, 6. Motor, 7. Box body, 8. Through groove, 9. Worm gear tube, 10. One-way bearing, 11. Annular plate, 12. Worm wheel, 13. Connecting shaft, 14. Mixing plate, 15. Mixing rod, 20. Discharge hopper, 30. Baffle, 31. Slot, 32. Limiting plate. Detailed Implementation
[0015] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0016] A concrete mixer for construction projects, such as Figure 1 , 2As shown, the system includes a mixing tank 1 with an opening at the top and a discharge port 2 at the bottom. Support legs 3 are fixedly mounted on the bottom side of the mixing tank 1. A vertical pipe 4 is fixedly installed inside the mixing tank 1, and a rotating shaft 5 is installed within the vertical pipe 4. The rotating shaft 5 is rotatably mounted on the mixing tank 1. A motor 6 is fixedly mounted on the mixing tank 1 to drive the rotating shaft 5. The top of the vertical pipe 4 is rotatably connected to a housing 7 via a bearing. The top end of the rotating shaft 5 passes through a through slot 8 in the housing 7 and is fixedly mounted on the housing 7. The outer circumference of the rotating shaft 5 is rotatably connected to a worm gear tube 9 via a bearing. The inner circumference of the bearing is fixedly connected to the outer circumference of the rotating shaft 5, and the outer circumference of the bearing is fixedly connected to the inner circumference of the worm gear tube 9. The bottom of the worm gear tube 9... The end is rotatably connected to the annular plate 11 via a one-way bearing 10. The inner circumference of the one-way bearing 10 is fixedly mounted on the worm tube 9, and the outer circumference of the one-way bearing 10 is fixedly mounted on the annular plate 11. The annular plate 11 is fitted onto the outer circumference of the rotating shaft 5. The annular plate 11 is fixedly mounted on the vertical pipe 4 via an L-shaped rod. Worm wheels 12 are meshed on both sides of the worm tube 9. Coaxial connecting shafts 13 are fixedly mounted on the inner circumference of the worm wheels 12. The connecting shafts 13 are rotatably mounted on the box body 7 and pass through the box body 7 to fixally connect to the stirring plate 14. Several stirring rods 15 are fixedly mounted on the box body 7. The stirring rods 15 are located on the left and right sides of the box body 7, and the stirring plate 14 is located on the front and rear sides of the box body 7. This utility model has a simple structure and ingenious design. The stirring plate 14 can automatically change its angle, thereby realizing the cyclical change of material lifting and pressing, improving the stirring effect, and can also maintain a fixed angle, meeting market demand and suitable for promotion. When using this invention, firstly, when the motor 6 drives the rotating shaft 5 to rotate in the forward direction, the rotating shaft 5 drives the box body 7, stirring plate 14, stirring rod 15, connecting shaft 13, and worm wheel 12 to rotate in the forward direction. Under the action of the one-way bearing 10, the worm tube 9 cannot rotate in the forward direction, but can only rotate in the reverse direction. Therefore, when the worm wheel 12 rotates, it will rotate around the worm tube 9. When the worm wheel 12 rotates, it will drive the connecting shaft 13 and stirring plate 14 to rotate, thereby changing the tilt angle of the stirring plate 14 and realizing the cyclical change of material lifting and pressing. When the motor 6 drives the rotating shaft 5 to rotate in the reverse direction, the rotating shaft 5 drives the box body 7, stirring plate 14, stirring rod 15, connecting shaft 13, and worm wheel 12 to rotate in the reverse direction. Since the worm tube 9 can rotate in the reverse direction, the worm wheel 12 will drive the worm tube 9 to rotate in the reverse direction together. At this time, there is no relative rotation between the worm tube 9 and the worm wheel 12, so the connecting shaft 13 does not rotate. At this time, the stirring plate 14 can be maintained at a fixed angle for stirring.
[0017] Specifically, as shown in the figure, the discharge port 2 in this embodiment is fixedly equipped with a downwardly inclined discharge hopper 20, and the discharge hopper 20 is equipped with a valve structure for controlling the discharge. The downward inclination of the discharge hopper 20 facilitates the discharge of materials.
[0018] Specifically, as shown in the figure, the valve structure in this embodiment includes a baffle 30. A slot 31 is provided on the discharge hopper 20, and the baffle 30 is slidably fitted into the slot 31. One side of the baffle 30 is rotatably mounted on the mixing tank 1 via a hinge shaft, and a limiting plate 32 is fitted onto the other side of the baffle 30. The limiting plate 32 is fixedly mounted on the mixing tank 1 and can limit the position of the baffle 30. By rotating the baffle 30, it is positioned in the slot 31, and the other side of the baffle 30 engages with the limiting plate 32, thus blocking the discharge port 2.
[0019] Furthermore, as shown in the figure, in this embodiment, the vertical tube 4, rotating shaft 5, box body 7, worm gear tube 9, one-way bearing 10, and annular plate 11 are coaxially arranged. This coaxial arrangement ensures alignment and prevents eccentric rotation.
[0020] Furthermore, as shown in the figure, the connecting shaft 13 in this embodiment is centrally symmetrically arranged. One end of the connecting shaft 13 is rotatably mounted on the inner wall of the housing 7 via a bearing, and the other end of the connecting shaft 13 is rotatably mounted in a pre-drilled hole in the housing 7 via a bearing. Both ends of the connecting shaft 13 are rotatably mounted on the housing 7, increasing the stability of the connecting shaft 13.
[0021] Furthermore, as shown in the figure, the top of the vertical pipe 4 in this embodiment is rotatably connected to the housing 7 via a sealed bearing. The sealed bearing prevents material from entering the vertical pipe 4.
[0022] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.
Claims
1. A concrete mixer for construction engineering, comprising a mixing tank (1), the mixing tank (1) having an opening at the top and a discharge port (2) at the bottom, and a support leg (3) fixedly provided on the bottom side of the mixing tank (1), characterized in that: A vertical pipe (4) is fixedly installed inside the mixing tank (1). A rotating shaft (5) is installed in the vertical pipe (4). The rotating shaft (5) is rotatably installed on the mixing tank (1). A motor (6) for driving the rotating shaft (5) is fixedly installed on the mixing tank (1). The top of the vertical pipe (4) is rotatably connected to the box body (7) through a bearing. The top of the rotating shaft (5) passes through a through slot (8) opened in the box body (7) and is fixedly installed on the box body (7). The outer periphery of the rotating shaft (5) is rotatably connected to the worm gear tube (9) through a bearing. The bottom end of the worm gear tube (9) The annular plate (11) is rotatably connected by a one-way bearing (10). The annular plate (11) is fitted on the outer circumference of the rotating shaft (5). The annular plate (11) is fixedly installed on the vertical tube (4) by an L-shaped rod. The two sides of the worm tube (9) are fitted with worm wheels (12). The inner circumference of the worm wheels (12) is fixedly provided with coaxial connecting shafts (13). The connecting shafts (13) are rotatably installed on the box body (7) and pass through the box body (7) to fixally connect the stirring plate (14). Several stirring rods (15) are fixedly provided on the box body (7).
2. A concrete mixer for construction work as claimed in claim 1 wherein: The discharge port (2) is fixedly provided with a downwardly inclined unloading hopper (20), and the unloading hopper (20) is provided with a valve structure for controlling the discharge.
3. A concrete mixer for use in construction work according to claim 2, characterised in that: The valve structure includes a baffle (30), a slot (31) is provided on the unloading hopper (20), the baffle (30) is slidably fitted in the slot (31), one side of the baffle (30) is rotatably mounted on the mixing tank (1) through a hinge shaft, and a limiting plate (32) is fitted on the other side of the baffle (30). The limiting plate (32) is fixedly mounted on the mixing tank (1) and can limit the baffle (30).
4. A concrete mixer for construction work as claimed in claim 1, wherein: The vertical tube (4), rotating shaft (5), box body (7), worm tube (9), one-way bearing (10), and annular plate (11) are coaxially arranged.
5. A concrete mixer for construction work as claimed in claim 1, wherein: The connecting shaft (13) is centrally symmetrically arranged. One end of the connecting shaft (13) is rotatably mounted on the inner wall of the box (7) through a bearing, and the other end of the connecting shaft (13) is rotatably mounted in the reserved hole opened in the box (7) through a bearing.
6. A concrete mixer for construction engineering according to claim 1, characterized in that: The top of the vertical tube (4) is rotatably connected to the box body (7) via a sealed bearing.