Concrete mixing device with quantitative admixture feeding mechanism
By designing a quantitative feeding mechanism for admixtures in the concrete mixing plant, and using an electric telescopic rod and gear rack transmission to achieve automatic quantitative feeding, the problem of the existing device being unable to feed quantitatively has been solved, reducing labor and time costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HEILONGJIANG BAYI AGRICULTURAL UNIVERSITY
- Filing Date
- 2025-06-13
- Publication Date
- 2026-05-19
AI Technical Summary
Existing concrete mixing equipment cannot achieve automatic quantitative feeding, resulting in increased labor and time costs.
A concrete mixing device with a quantitative dispensing mechanism for admixtures was designed. The material box is moved vertically by an electric telescopic rod, and the material is automatically dispensed quantitatively by mechanical transmission of gears and racks.
It achieves automatic quantitative feeding, reducing labor and time costs.
Smart Images

Figure CN224255709U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of mixing devices, and in particular to a concrete mixing device. Background Technology
[0002] Concrete refinement typically refers to improving the density and uniformity of the concrete's microstructure by optimizing mix proportions, material selection, or construction techniques, thereby enhancing its mechanical properties, durability, and workability. Concrete is a commonly used building material, composed of sand, cement, aggregate, and water, with the use of high-fineness cement (e.g., specific surface area ≥ 400 m²). 2 / kg),
[0003] To improve hydration activity, but be aware of the potential cracking risk due to increased water demand, add silica fume (5-10%): nano-sized particles fill pores, significantly improving density (28-day strength can be increased by 20-40%). After mixing in a mixing device, the mixture is formed. It mainly consists of a mixing drum, feeding and discharging mechanisms, a water supply system, a prime mover, a transmission mechanism, and a frame. Based on working nature, it can be classified as intermittent, batch, and continuous; based on mixing principle, it can be classified as gravity-feed and forced-mixing; based on installation method, it can be classified as fixed and mobile; based on discharge method, it can be classified as tilting and non-tilting; based on drum structure, it can be classified as pear-type, drum-type, double-cone, disc vertical shaft type, and circular groove horizontal shaft type, etc. Furthermore, the mixing effect is best achieved when various ingredients are within a certain proportion range. Therefore, it is necessary to control the amount of ingredients in actual production. However, existing concrete mixing devices cannot control the amount of ingredients added, causing certain problems in production.
[0004] A search revealed Chinese Patent Publication No. CN112895139A, which discloses a concrete mixing device with a quantitative dispensing mechanism for admixtures. The device includes pouring materials into the mixer through a material box, followed by mixing and agitation of the materials in the mixing unit, centralized processing, and further mixing, thereby improving the mixing efficiency of the materials. The device also features intelligent control of the feeding speed, allowing operators to adjust the working speed of the drive motor according to usage, thus intelligently controlling the speed at which materials enter the mixer. This ensures more thorough mixing of the materials inside the mixer and significantly saves time and labor costs.
[0005] Regarding the aforementioned technologies, the inventors have discovered the following drawbacks: existing concrete mixing devices cannot achieve automatic quantitative feeding, resulting in a significant increase in labor and time costs. Therefore, it is necessary to provide a concrete mixing device with a quantitative feeding mechanism for admixtures. Utility Model Content
[0006] To address the problems mentioned in the background section, this application provides a concrete mixing device with a quantitative dispensing mechanism for admixtures, which has an automatic feeding function.
[0007] This application provides a concrete mixing device with a quantitative dispensing mechanism for admixtures, which adopts the following technical solution: the mixing device includes a machine body, a fixed rod is fixedly connected to the top of the machine body, a motor is fixedly connected to the side of the fixed rod away from the top of the machine body, a rotating rod is fixedly connected to the output shaft of the motor, and a mixing rod is fixedly connected to the circumferential surface of the rotating rod.
[0008] Optionally, the end of the rotating rod away from the motor passes through the fixed rod and is rotatably connected to the fixed rod, and the rotating rod is located inside the machine body.
[0009] The number of the stirring rods can be several, arranged in pairs and linearly arrayed on the rotating rod, with the stirring rods located inside the machine body.
[0010] Optionally, the mixing device is externally provided with a feeding mechanism, which includes a connecting plate. The connecting plate is fixedly connected to the circumferential surface of the machine body. A support plate is fixedly connected to the side of the connecting plate away from the machine body. A fixing frame is fixedly connected to the top of the support plate. An electric telescopic rod is fixedly connected to the side of the support plate near the fixing frame. A material box is provided at the end of the electric telescopic rod away from the support plate. A connecting rod is fixedly connected to one side of the material box. A gear passes through the end of the connecting rod away from the material box and is fixedly connected to the gear. A rack is fixedly connected to the inner side of the fixing frame. An inclined plate is fixedly connected to the side of the connecting plate near the machine body. A diversion plate is fixedly connected to the inclined surface of the inclined plate.
[0011] Optionally, the number of gears is two, and they are symmetrical about each other along the vertical central axis of the material box; the number of racks is two, and they are symmetrical about each other along the vertical central axis of the connecting plate.
[0012] Optionally, the inclined plate is triangular in shape, there are two drainage plates, and they are symmetrical about each other along the vertical central axis of the inclined plate. The number of fixing frames is two, and they are symmetrical about each other along the vertical central axis of the support plate.
[0013] In summary, this application has the following beneficial technical effects: By setting up connecting plates, support plates and fixing frames and other components to cooperate with each other, this utility model realizes the function of pushing the material box to move vertically by an electric telescopic rod, thereby pouring the material in the material box into the machine body, achieving the effect of automatic quantitative feeding, and greatly reducing labor and time costs. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the three-dimensional appearance structure in the embodiments of this application;
[0015] Figure 2 This is a top view of the internal structure of the machine body in an embodiment of this application;
[0016] Figure 3 This is a schematic diagram of the feeding mechanism structure in an embodiment of this application;
[0017] Figure 4 This is a side view of the feeding mechanism in an embodiment of this application;
[0018] Figure 5 This is a top view of the feeding mechanism in an embodiment of this application.
[0019] Reference numerals: 1. Stirring device; 101. Machine body; 102. Fixed rod; 103. Motor; 104. Rotating rod; 105. Stirring rod; 2. Feeding mechanism; 201. Connecting plate; 202. Support plate; 203. Fixed frame; 204. Electric telescopic rod; 205. Material box; 206. Connecting rod; 207. Gear; 208. Rack; 209. Inclined plate; 210. Drainage plate. Detailed Implementation
[0020] The following is in conjunction with the appendix Figures 1-5 This application will be described in further detail.
[0021] This application discloses a concrete mixing device with a quantitative dispensing mechanism for admixtures. For example... Figures 1-2 As shown, a concrete mixing device with a quantitative admixture dispensing mechanism includes a mixing device 1. The mixing device 1 includes a body 101. A fixed rod 102 is fixedly connected to the top of the body 101. A motor 103 is fixedly connected to the side of the fixed rod 102 away from the top of the body 101. A rotating rod 104 is fixedly connected to the output shaft of the motor 103. This design facilitates the rotation of the rotating rod 104 by the motor 103. The end of the rotating rod 104 away from the motor 103 passes through the fixed rod 102 and is connected to the fixed rod 102. The rotating rod 104 is located inside the machine body 101. This design is beneficial for limiting the motor 103 by fixing the rod 102. A stirring rod 105 is fixedly connected to the circumference of the rotating rod 104. This design is beneficial for stirring the material inside the machine body 101 by stirring the stirring rod 105. There are several stirring rods 105, arranged in pairs and linearly arrayed on the rotating rod 104. The stirring rods 105 are located inside the machine body 101. This design is beneficial for making the stirring more uniform and thorough by using several stirring rods 105.
[0022] Please see Figure 3 , Figure 4 and Figure 5The mixing device 1 is externally equipped with a feeding mechanism 2, which includes a connecting plate 201. The connecting plate 201 is fixedly connected to the circumferential surface of the machine body 101. A support plate 202 is fixedly connected to the side of the connecting plate 201 away from the machine body 101. A fixing frame 203 is fixedly connected to the top of the support plate 202. An electric telescopic rod 204 is fixedly connected to the side of the support plate 202 near the fixing frame 203. A material box 205 is provided at the end of the electric telescopic rod 204 away from the support plate 202. A connecting rod 206 is fixedly connected to one side of the material box 205. A gear 207 passes through the end of the connecting rod 206 away from the material box 205 and is fixedly connected to the gear 207. A rack 208 is fixedly connected to the inner side of the fixing frame 203. The above design facilitates the vertical displacement of the material box 205 by pushing it with the electric telescopic rod 204. There are two gears 207, and they extend along the material box 205. The vertical central axes of the 5 are symmetrical to each other. There are two racks 208, which are symmetrical to each other along the vertical central axis of the connecting plate 201. The above design is conducive to the rotation of the gear 207 when it meets the rack 208. An inclined plate 209 is fixedly connected to the side of the connecting plate 201 near the machine body 101. A flow guide plate 210 is fixedly connected to the inclined surface of the inclined plate 209. The above design is conducive to the flow guide effect through the inclined plate 209. The inclined plate 209 is triangular in shape. There are two flow guide plates 210, which are symmetrical to each other along the vertical central axis of the inclined plate 209. There are two fixed frames 203, which are symmetrical to each other along the vertical central axis of the support plate 202. The above design is conducive to limiting the material through the two flow guide plates 210.
[0023] The implementation principle of the concrete mixing device with a quantitative feeding mechanism for admixtures in this application embodiment is as follows: The material box 205 is vertically displaced by an electric telescopic rod 204, which in turn causes the connecting rod 206 to move vertically. This, in turn, causes the connecting rod 206 to drive the gear 207 to move vertically along the inner wall of the fixed frame 203. Since a rack 208 is provided on the inner wall of the fixed frame 203, when the gear 207 rises, it encounters the rack 208, causing the gear 207 to rotate. This, in turn, causes the connecting rod 206 to rotate, which in turn causes the material box 205 to rotate, thus emptying the material from the material box 205 onto the inclined plate 209. The material is then guided by a guide plate 210 on the inclined plate 209, achieving automatic quantitative feeding and significantly reducing labor and time costs.
[0024] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A concrete mixing device with a quantitative dispensing mechanism for admixtures, comprising a mixing device (1), characterized in that: The stirring device (1) includes a body (101), a fixed rod (102) is fixedly connected to the top of the body (101), a motor (103) is fixedly connected to the side of the fixed rod (102) away from the top of the body (101), a rotating rod (104) is fixedly connected to the output shaft of the motor (103), and a stirring rod (105) is fixedly connected to the circumferential surface of the rotating rod (104).
2. A concrete mixing device with a quantitative dispensing mechanism for admixtures according to claim 1, characterized in that: The end of the rotating rod (104) away from the motor (103) passes through the fixed rod (102) and is rotatably connected to the fixed rod (102). The rotating rod (104) is located inside the machine body (101).
3. A concrete mixing device with a quantitative dispensing mechanism for admixtures according to claim 1, characterized in that: The number of stirring rods (105) is several, arranged in pairs, and arranged in a linear array on the rotating rod (104). The stirring rods (105) are located inside the machine body (101).
4. A concrete mixing device with a quantitative dispensing mechanism for admixtures according to claim 1, characterized in that: The stirring device (1) is externally provided with a feeding mechanism (2), which includes a connecting plate (201). The connecting plate (201) is fixedly connected to the circumferential surface of the machine body (101). A support plate (202) is fixedly connected to the side of the connecting plate (201) away from the machine body (101). A fixing frame (203) is fixedly connected to the top of the support plate (202). An electric telescopic rod (204) is fixedly connected to the side of the support plate (202) near the fixing frame (203). The electric telescopic rod (204) is located at the far end of the machine body (101). A material box (205) is provided at one end away from the support plate (202). A connecting rod (206) is fixedly connected to one side of the material box (205). A gear (207) passes through the end of the connecting rod (206) away from the material box (205) and is fixedly connected to the gear (207). A rack (208) is fixedly connected to the inside of the fixing frame (203). An inclined plate (209) is fixedly connected to the side of the connecting plate (201) near the machine body (101). A diverting plate (210) is fixedly connected to the inclined surface of the inclined plate (209).
5. A concrete mixing device with a quantitative dispensing mechanism for admixtures according to claim 4, characterized in that: There are two gears (207) and they are symmetrical to each other along the vertical central axis of the material box (205). There are two racks (208) and they are symmetrical to each other along the vertical central axis of the connecting plate (201).
6. A concrete mixing device with a quantitative dispensing mechanism for admixtures according to claim 4, characterized in that: The inclined plate (209) is triangular in shape. There are two diversion plates (210) that are symmetrical about each other along the vertical central axis of the inclined plate (209). There are two fixing frames (203) that are symmetrical about each other along the vertical central axis of the support plate (202).