Small concrete stirrer
By designing a combination of a sliding vertical mixing rod and a spiral scraper, the problem of uneven mixing in traditional mixers is solved, achieving thorough mixing and uniformity of concrete and simplifying the cleaning process.
Patent Information
- Application Number
- CN202520442492.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-14
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-03-14
AI Technical Summary
Traditional small concrete mixers suffer from uneven mixing, especially in the edges and bottom areas of the mixing drum, which are difficult to mix thoroughly. Existing improvements, such as multi-layer mixing blades and adjusting the rotation speed, cannot completely solve this problem.
A small concrete mixer was designed, which uses a sliding vertical mixing rod and a spiral scraper. By changing the position and rotation direction of the mixing rod in the chute, the concrete of different ranges and layers can be mixed evenly, and the concrete adhering to the inner wall of the mixing chamber can be scraped off by the scraper.
It achieves thorough mixing of concrete, improves mixing effect, makes concrete more uniform, and facilitates cleaning of the mixing chamber, reducing the amount of cleaning work after solidification.
Smart Images
Figure CN223834789U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mixer technology, and more specifically to a small concrete mixer. Background Technology
[0002] Traditional small concrete mixers typically employ a fixed-capacity mixing drum and a single mixing blade design. While this design is simple in structure, it has some obvious limitations in practical use. Secondly, some mixers use multi-layer mixing blade designs to increase the mixing range; others improve the mixing effect by adjusting the rotation speed of the mixing blades. However, these improvements still have certain limitations in practical applications. Although multi-layer mixing blades increase the mixing range, the fixed spacing between the blades still cannot completely cover all areas within the mixing drum, especially the concrete at the edges and bottom, which remains difficult to mix thoroughly. While adjusting the rotation speed of the mixing blades can improve the mixing effect to some extent, it cannot fundamentally solve the problem of uneven mixing. Utility Model Content
[0003] This invention provides a small concrete mixer, which has the advantage of being able to mix concrete in different ranges, thereby achieving thorough mixing, improving the mixing effect, and making the concrete more uniform.
[0004] A small concrete mixer includes a base on which a mixing chamber is placed, a frame mounted on the base, a rotating frame rotatably connected to the frame, and multiple grooves circumferentially formed on the rotating frame. Each groove is fitted with a vertical mixing rod located inside the mixing chamber, and the vertical mixing rod can slide within the corresponding groove.
[0005] Multiple screws are rotatably connected around the rotating frame, and the upper ends of multiple vertical stirring rods are respectively connected to the multiple screws through threaded transmission.
[0006] Each of the vertical stirring rods has a scraper fixed to its lower end.
[0007] The scraper is spiral-shaped. Attached Figure Description
[0008] The present invention will now be described in further detail with reference to the accompanying drawings and specific implementation methods.
[0009] Figure 1 This is a schematic diagram of a small concrete mixer.
[0010] Figure 2 This is a schematic diagram of the frame structure;
[0011] Figure 3 This is a schematic diagram of the mixing chamber.
[0012] Figure 4 This is a schematic diagram of the rotating frame structure;
[0013] Figure 5 A schematic diagram of the vertical stirring rod and scraper;
[0014] Figure 6 This is a schematic diagram of the structure of the vertical stirring rod and the rotating frame.
[0015] Figure 7 This is a schematic diagram of the structure after multiple vertical stirring rods are brought together.
[0016] In the diagram: base 101; frame 102; motor 103; rotating frame 104; chute 105; screw 106; vertical stirring rod 107; scraper 108; mixing chamber 109. Detailed Implementation
[0017] See Figures 1 to 7 The diagram shows an embodiment of thoroughly mixing concrete within different ranges according to the present invention.
[0018] A small concrete mixer includes a base 101 on which a mixing chamber 109 is placed, a frame 102 is mounted on the base 101, a rotating frame 104 is rotatably connected to the frame 102, and a plurality of grooves 105 are formed around the rotating frame 104. A vertical mixing rod 107 located in the mixing chamber 109 is connected in each groove 105, and the vertical mixing rod 107 can slide in the corresponding groove 105.
[0019] Concrete is poured into the mixing chamber 109, and the rotating frame 104 is driven to rotate. The rotating frame 104 drives multiple vertical mixing rods 107 on it to make circular motion to mix the concrete. The vertical mixing rods 107 can slide in the corresponding chute 105, so that the vertical mixing rods 107 contact the concrete at different positions in the mixing chamber 109, change the mixing position, and thus mix the concrete in different ranges, thereby achieving full mixing, improving the mixing effect, and making the concrete more uniform.
[0020] A C-shaped frame is welded to the middle of the frame 102, and the mixing chamber 109 is fitted inside the C-shaped frame, thereby limiting the position of the mixing chamber 109 and preventing the mixing chamber 109 from moving during the concrete mixing process.
[0021] See Figures 4 to 7 The diagram shows an embodiment of uniformly mixing concrete at different layers according to the present invention.
[0022] Multiple screws 106 are rotatably connected around the rotating frame 104, and the upper ends of multiple vertical stirring rods 107 are respectively connected to the multiple screws 106 through threaded screw transmission.
[0023] Manually rotating the screw 106 causes the vertical mixing rod 107 to slide within the chute 105, thereby changing the position of the vertical mixing rod 107 relative to the rotating frame 104. This allows multiple vertical mixing rods 107 to mix concrete at different locations during their circular motion. When multiple vertical mixing rods 107 are brought together, they can mix the concrete in the core of the mixing chamber 109. When multiple vertical mixing rods 107 are dispersed, they can mix the concrete in the outer part of the mixing chamber 109. Thus, by changing the position of multiple vertical mixing rods 107, concrete at different layers in the circumferential direction can be uniformly mixed.
[0024] Secondly, by individually screwing each screw 106, multiple vertical mixing rods 107 can be distributed sequentially from the inside to the outside in the circumferential direction. In this way, when the rotating frame 104 drives multiple vertical mixing rods 107 to rotate simultaneously, the concrete at different layers in the circumferential direction can be mixed simultaneously under the joint cooperation of multiple vertical mixing rods 107 distributed sequentially from the inside to the outside, thereby improving the mixing effect and efficiency of concrete.
[0025] See Figure 5 and 6 The diagram shows an embodiment of the present invention that further improves the mixing effect on concrete.
[0026] Each of the vertical stirring rods 107 has a scraper 108 welded to its lower end;
[0027] Multiple scrapers 108 increase the contact area with concrete, further improving the mixing effect of concrete; when multiple vertical mixing rods 107 move closer together to mix the core concrete, multiple scrapers 108 can also synchronously agitate the outer concrete.
[0028] See Figure 5 This shows a schematic diagram of an embodiment of the present invention in which concrete is thoroughly mixed in the vertical direction;
[0029] The scraper 108 is spiral-shaped; when the rotating frame 104 drives multiple scrapers 108 to rotate counterclockwise, the scraper 108 can transport the concrete at the lower end upward, thereby causing the concrete to continuously alternate in the vertical direction, thus fully mixing the concrete in the vertical direction.
[0030] See Figure 1 The diagram shows an embodiment of scraping off the concrete adhering to the inner wall according to the present invention.
[0031] After the vertical stirring rod 107 moves outward, the scraper 108 can adhere to the inner wall of the stirring chamber 109;
[0032] Multiple scrapers 108 rotate along the inner wall of the mixing chamber 109, scraping off the concrete adhering to the inner wall of the mixing chamber 109, thus avoiding the need for workers to spend a lot of time scraping it off after the concrete has solidified.
[0033] See Figure 4 The diagram shows an embodiment of the present invention in which the vertical stirring rod 107 and the scraper 108 are driven to rotate.
[0034] A motor 103 is fixedly connected to the frame 102, and a rotating frame 104 is connected to the output shaft of the motor 103 via a coupling;
[0035] When the motor 103 is powered on, it drives the rotating frame 104 to rotate. The rotating frame 104 drives multiple vertical mixing rods 107 and scrapers 108 to rotate, thus mixing the concrete.
[0036] See Figure 2 A schematic diagram of an embodiment of the present invention that is easy to clean is shown;
[0037] The base 101 and the frame 102 are detachably connected by screws;
[0038] After the frame 102 is disassembled, it is easy to remove the vertical stirring rod 107 and scraper 108 from the rotating frame 104, and the stirring chamber 109 can also be removed from the base 101 for cleaning.
[0039] See Figure 3 The diagram shows an embodiment of discharging mixed concrete according to the present invention.
[0040] The mixing chamber 109 is provided with a discharge port at its lower end for discharging the mixed concrete.
[0041] Furthermore, a screw plate is welded to the outer end of each screw 106 to facilitate manual screwing and control of the screw 106 rotation.
[0042] Furthermore, the scraper 108 is located on the outside of the vertical mixing rod 107; thus, when the multiple vertical mixing rods 107 move outward, the multiple scrapers 108 can adhere to the inner wall of the mixing chamber 109 to scrape off the adhering concrete. When the multiple vertical mixing rods 107 approach each other, the gap between each vertical mixing rod 107 is small, thereby enabling them to fully contact and mix with the concrete in the core.
[0043] Model 103 provides a small concrete mixer option Z2-11 to 112, and other applicable models in the prior art can also be used.
Claims
1. A small concrete mixer, characterized in that, The system includes a base (101) on which a mixing chamber (109) is placed, a frame (102) is mounted on the base (101), a rotating frame (104) is rotatably connected to the frame (102), and multiple grooves (105) are formed around the rotating frame (104). Each groove (105) is fitted with a vertical stirring rod (107) located in the mixing chamber (109), and the vertical stirring rod (107) can slide in the corresponding groove (105).
2. A small concrete mixer according to claim 1, characterized in that, Multiple screws (106) are rotatably connected around the rotating frame (104), and the upper ends of multiple vertical stirring rods (107) are respectively connected to the multiple screws (106) through threaded transmission.
3. A small concrete mixer according to claim 2, characterized in that, Each of the vertical stirring rods (107) has a scraper (108) fixed to its lower end.
4. A small concrete mixer according to claim 3, characterized in that, The scraper (108) is spiral-shaped.
5. A small concrete mixer according to claim 4, characterized in that, After the vertical stirring rod (107) moves outward, the scraper (108) can adhere to the inner wall of the stirring chamber (109).
6. A small concrete mixer according to claim 1, characterized in that, A motor (103) is fixedly connected to the frame (102), and the rotating frame (104) is connected to the output shaft of the motor (103) through a coupling.
7. A small concrete mixer according to claim 1, characterized in that, The base (101) and the frame (102) are detachably connected.
8. A small concrete mixer according to claim 1, characterized in that, The mixing chamber (109) is provided with a discharge port at its lower end.
9. A small concrete mixer according to claim 2, characterized in that, Each of the screws (106) has a screw plate fixed to its outer end.
10. A small concrete mixer according to claim 3, characterized in that, The scraper (108) is located on the outside of the vertical stirring rod (107).