Concrete mixer with good stability
By introducing a counterweight box and counterweight blocks into the concrete mixer, combined with an electric telescopic rod and tilt sensor, the center of gravity of the mixer can be dynamically adjusted, solving the problem of the mixing drum tipping over and improving the stability and safety of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHENGZHOU YOUCHENG MACHINERY MFG CO LTD
- Filing Date
- 2025-07-28
- Publication Date
- 2026-07-03
AI Technical Summary
Existing concrete mixers cannot adjust the center of gravity of the mixing drum during use, which may lead to tipping over.
The design employs a counterweight box and counterweight blocks. The height of the support legs and the weight of the counterweight blocks are adjusted via an electric telescopic rod. Combined with an inclination sensor to monitor the tilt of the mixer, the center of gravity is dynamically adjusted. The machine is fixed to the ground via a plug-in column to enhance stability.
This improves the stability of the concrete mixer, prevents the mixing drum from tipping over due to a shift in the center of gravity, and enhances the safety and reliability of the equipment.
Smart Images

Figure CN224446369U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of concrete mixers and relates to a concrete mixer with good stability. Background Technology
[0002] A concrete mixer is a machine that mixes cement, sand and gravel aggregates and water to produce concrete mixture. It mainly consists of a mixing drum, feeding and unloading mechanism, water supply system, prime mover, transmission mechanism, frame and support device.
[0003] Chinese utility model patent CN220113655U discloses a concrete mixer, including a housing and a support frame. A discharge pipe is installed in the middle of the lower end of the housing, and a top cover is installed on the upper end of the housing. A motor is fixedly installed in the middle of the top of the top cover. A mixing shaft is located in the middle of the interior of the housing. A feed hopper passes through the top of the top cover near the motor, and a water inlet valve passes through the top of the top cover near the motor. Hydraulic cylinders are installed at both ends of the top of the top cover near the motor. The support frame is an A-shaped frame with spaced intervals. A swing shaft is installed at the upper end of each support frame. A reducer is fixedly installed on one side of the support frame, and a crank handle is rotatably installed outside the reducer. This technical solution allows adjustment of the housing's tilt angle through the crank handle, reducer, and swing shaft, enabling workers to quickly pour powder into the mixing drum for mixing. However, this technical solution cannot adjust the center of gravity of the mixing drum during use. When the ground is uneven or the weight distribution inside the mixing drum is uneven, the center of gravity of the mixing drum may shift, causing it to tip over. Utility Model Content
[0004] To address the aforementioned problems, this invention proposes a concrete mixer with good stability, which effectively solves the problems in the prior art.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: A concrete mixer with good stability includes a mixing shell, with a feed inlet and a discharge outlet respectively provided on the upper and lower sides of the mixing shell. A mixing assembly is provided inside the mixing shell. An installation plate is provided on the circumferential side of the mixing shell. Four support legs are arranged in a circular array on the lower side of the installation plate. A counterweight box is fitted on the circumferential side of the support legs. Four electric telescopic rods are arranged in a circular array on the upper side of the installation plate. The output ends of the four electric telescopic rods are respectively connected to the upper side of the four counterweight boxes. A counterweight block is inserted into the counterweight box. An angle sensor is provided on the upper side of the mixing shell.
[0006] The feed inlet is connected to a feed assembly, and the discharge outlet is equipped with a discharge valve.
[0007] Furthermore, the support leg is internally threaded with a plug-in post, the upper end of which extends to the upper side of the mounting plate, and a turntable is inserted into the upper side of the plug-in post.
[0008] Furthermore, the feeding assembly includes a screw conveyor disposed on one side of the mixing shell, and the discharge port of the screw conveyor is connected to the feed port of the mixing shell.
[0009] Furthermore, the stirring assembly includes a stirring shaft that is rotatably connected in a sealed manner within a stirring shell. Multiple stirring blades are provided on the circumferential side of the stirring shaft. A stirring motor is provided on the upper side of the stirring shell, and the output end of the stirring motor is connected to the stirring shaft.
[0010] Furthermore, a handle is provided on the side of the counterweight away from the supporting leg.
[0011] Furthermore, a fixing bolt is threadedly connected to the upper side of the counterweight box, and the lower end of the fixing bolt passes through the counterweight box and is threadedly connected to the counterweight block.
[0012] Compared with the prior art, the present invention has the following beneficial effects:
[0013] This invention achieves the adjustment of the center of gravity of the concrete mixer through the counterweight box, counterweight block, and electric telescopic rod, thereby improving the stability of the concrete mixer during use. The connection between the support legs and the ground is achieved through the plug-in column and turntable, further improving the stability of the concrete mixer. The counterweight block is fixedly connected to the counterweight box through fixing bolts, preventing the counterweight block from slipping out of the counterweight box during use. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of this utility model;
[0015] Figure 2 This is a front view of the present utility model.
[0016] In the diagram: 1. Mixing shell; 101. Feed inlet; 102. Discharge outlet; 2. Screw conveyor; 3. Mixing motor; 4. Mixing shaft; 5. Mixing blades; 6. Tilt sensor; 7. Mounting plate; 8. Discharge valve; 9. Support leg; 10. Insertion column; 11. Turntable; 12. Electric telescopic rod; 13. Counterweight box; 14. Counterweight block; 15. Handle; 16. Fixing bolt. Detailed Implementation
[0017] 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 protection scope of the present utility model.
[0018] like Figure 1 , Figure 2 As shown, a concrete mixer with good stability includes a mixing shell 1. The upper and lower sides of the mixing shell 1 are respectively provided with a feed inlet 101 and a discharge outlet 102. A mixing assembly is provided inside the mixing shell 1. An installation plate 7 is bolted to the circumferential side of the mixing shell 1. Four support legs 9 are bolted in a circular array on the lower side of the installation plate 7. A counterweight box 13 is sleeved on the circumferential side of the support legs 9. Four electric telescopic rods 12 are bolted in a circular array on the upper side of the installation plate 7. The output ends of the four electric telescopic rods 12 are respectively bolted to the upper side of the four counterweight boxes 13. A counterweight block 14 is inserted into the counterweight box 13. An inclination sensor 6 is bolted to the upper side of the mixing shell 1. The inclination sensor 6 is existing technology, model IK360, and its working principle and internal structure will not be described in detail here.
[0019] The feed inlet 101 is connected to a feed assembly, and the discharge outlet 102 is threadedly connected to a discharge valve 8.
[0020] During use, the worker delivers concrete raw materials into the mixing shell 1 through the feeding assembly, and mixes the concrete raw materials through the mixing assembly. After mixing, the concrete can be discharged through the discharge port 102 when the discharge valve 8 is opened. During use, the worker can observe the tilt of the mixing shell 1 through the tilt sensor, and then adjust the height of the counterweight box 13 on the four support legs 9 through the electric telescopic rod 12. The worker can also replace the counterweight block 14 in the counterweight box 13 to adjust the weight of the counterweight box 13, thereby adjusting the center of gravity of the device and ensuring the stability of the device during use.
[0021] Preferably, in this technical solution, when the worker is receiving concrete, the worker's cart can pass through the gap between two adjacent support legs 9.
[0022] In this embodiment, the support leg 9 is internally threaded with a plug post 10. The upper end of the plug post 10 extends to the upper side of the mounting plate 7. The upper side of the plug post 10 is connected to a turntable 11 through a polygonal plug slot. In use, the operator can rotate the plug post 10 through the turntable 11. Under the action of the thread, the plug post 10 can move downward and be inserted into the ground, which further improves the stability of the concrete mixer.
[0023] In this embodiment, the feeding assembly includes a screw conveyor 2 disposed on one side of the mixing shell 1. The discharge port 102 of the screw conveyor 2 is connected to the feed port 101 of the mixing shell 1. Workers can pour concrete raw materials into the screw conveyor 2, which is then transported to the feed port 101 under the action of the screw conveyor 2, improving the convenience of workers when feeding materials. At the same time, the screw feeder is existing technology, including a shell, a screw feeding shaft, a feed hopper, a discharge port 102, and a rotating motor. Its specific structure and working principle are existing technology and will not be described in detail here.
[0024] In this embodiment, the mixing assembly includes a mixing shaft 4 that is rotatably connected in a sealed manner within the mixing shell 1. Multiple mixing blades 5 are welded to the circumferential side of the mixing shaft 4. A mixing motor 3 is bolted to the upper side of the mixing shell 1. The output end of the mixing motor 3 is connected to the mixing shaft 4. During use, the operator can drive the mixing shaft 4 to rotate through the mixing motor 3, and mix the concrete raw materials in the mixing shell 1 under the action of the mixing blades 5, thus ensuring the reliability of the concrete mixer during use.
[0025] In this embodiment, a handle 15 is welded to the side of the counterweight 14 away from the support leg 9. When in use, the staff can pull the counterweight 14 out of the counterweight box 13 through the handle 15, which improves the convenience of the staff when replacing the counterweight 14.
[0026] In this embodiment, a fixing bolt 16 is threadedly connected to the upper side of the counterweight box 13. The lower end of the fixing bolt 16 passes through the counterweight box 13 and is threadedly connected to the counterweight block 14. In use, the fixing bolt 16 can fix the counterweight block 14 to the counterweight box 13 together, preventing the counterweight block 14 from slipping out of the counterweight box 13 during use.
[0027] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.
Claims
1. A concrete mixer with good stability, comprising a mixing shell, a feeding port and a discharging port are arranged on the upper and lower sides of the mixing shell respectively, and a mixing assembly is arranged in the mixing shell, characterized in that: The stirring shell has a mounting plate on its circumferential side. The mounting plate has four support legs arranged in a circular array on its lower side. The support legs have a counterweight box fitted on their circumferential side. The mounting plate has four electric telescopic rods arranged in a circular array on its upper side. The output ends of the four electric telescopic rods are respectively connected to the upper side of the four counterweight boxes. The counterweight boxes have counterweight blocks inserted inside. The stirring shell has an angle sensor on its upper side. The feed inlet is connected to a feed assembly, and the discharge outlet is equipped with a discharge valve.
2. The concrete mixer of claim 1, wherein: The support leg is internally threaded with a plug-in post, the upper end of which extends to the upper side of the mounting plate, and a turntable is inserted into the upper side of the plug-in post.
3. The concrete mixer of claim 1, wherein: The feeding assembly includes a screw conveyor disposed on one side of the mixing shell, and the discharge port of the screw conveyor is connected to the feed port of the mixing shell.
4. The concrete mixer of claim 1, wherein: The stirring assembly includes a stirring shaft that is rotatably and sealed within a stirring shell. Multiple stirring blades are provided on the circumferential side of the stirring shaft. A stirring motor is provided on the upper side of the stirring shell, and the output end of the stirring motor is connected to the stirring shaft.
5. The concrete mixer of claim 1, wherein: The counterweight is provided with a handle on the side away from the supporting leg.
6. The concrete mixer of claim 1, wherein: The upper side of the counterweight box is threaded with a fixing bolt, and the lower end of the fixing bolt passes through the counterweight box and is threadedly connected to the counterweight block.