A dosing device
By designing a detachable vertical shaft and sponge block structure, the problems of large footprint of multiple devices and inconvenient replacement of medicine tanks are solved, enabling efficient drug replacement and cleaning of a single drug dosing device and reducing costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU CHENZHOU ENVIRONMENTAL PROTECTION TECH
- Filing Date
- 2025-08-04
- Publication Date
- 2026-07-14
AI Technical Summary
Existing dosing systems require multiple devices for different types of wastewater treatment, resulting in high costs, large footprints, and inconvenient replacement of chemical tanks.
A drug dosing device was designed, which uses a detachable first and second vertical shaft. The drug is mixed and cleaned by a motor-driven stirring blade and a sponge block. The device is quick to replace using an electric telescopic rod and docking assembly, reducing the number of devices and the floor space required.
It enables rapid drug replacement of a single device, reduces equipment investment and floor space, improves replacement efficiency, and does not affect wastewater treatment efficiency.
Smart Images

Figure CN224485652U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of wastewater treatment technology, and in particular to a dosing device. Background Technology
[0002] Wastewater treatment chemical dosing systems are automated devices used to add chemical agents to wastewater, primarily for adjusting water quality, removing pollutants, or improving treatment effectiveness. These systems typically consist of a chemical storage tank, metering pump, agitator, control system, and piping. They automatically adjust the dosage based on water quality parameters to ensure precise dosing. Common chemicals include flocculants, disinfectants, and pH adjusters, and are widely used in the treatment of industrial wastewater, municipal sewage, and reclaimed water. Their advantages include ease of operation, stable performance, effective improvement of wastewater treatment efficiency, reduced labor costs, and ensuring that effluent meets discharge standards.
[0003] However, existing dosing devices have the following drawbacks: different chemicals are added for different types of wastewater treatment, so multiple dosing devices are usually installed in wastewater treatment plants, each with its own separate tank. This increases investment costs and requires more space to house these devices. Furthermore, if chemicals need to be replaced, the inside of the tank cannot be cleaned quickly. Therefore, further improvements are needed, and to this end, we propose a new dosing device. Utility Model Content
[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a drug dosing device.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: a dosing device, comprising a base, a medicine tank fixed to the top of the base, a top plate provided on the top of the medicine tank, a motor fixedly mounted on the upper surface of the top plate, a drive shaft fixedly mounted at the bottom output end of the motor, a first vertical shaft and a second vertical shaft matched with the drive shaft, a stirring blade fixedly mounted at the bottom end of the first vertical shaft, an L-shaped plate fixedly mounted at the bottom end of the second vertical shaft, sponge blocks fixedly mounted on the lower surface and sides of the L-shaped plate, a docking assembly fixedly mounted at the bottom end of the drive shaft, end plates fixedly mounted on both the first and second vertical shafts, the end plates being fixedly connected to the drive shaft through the docking assembly, and a metering pump fixedly mounted on the side of the base.
[0006] Furthermore, an electric telescopic rod is fixed to the side of the upper surface of the base, and the top telescopic end of the electric telescopic rod is fixedly connected to the top plate.
[0007] Furthermore, the docking assembly includes a base plate fixed to the bottom end of the drive shaft. The base plate has symmetrical first strip openings on both sides. A retaining plate is slidably connected inside the first strip opening, and a retaining tooth is provided at the bottom end of the retaining plate. The retaining plate and the outer wall of the drive shaft are fixedly connected to a spring. The end plate has second strip openings on both sides for the retaining tooth to pass through, and the retaining tooth engages with the lower surface of the end plate.
[0008] Furthermore, a guide rod is fixed inside the first strip-shaped opening, and the guide rod passes through the card plate and is slidably connected to the card plate.
[0009] Furthermore, the sponge block is attached to the bottom wall and inner side wall of the medicine barrel.
[0010] Furthermore, the metering pump inlet and outlet are respectively fixed with a suction pipe and a discharge pipe, the other end of the suction pipe is connected to the medicine tank, and the discharge pipe is connected to the sewage treatment equipment.
[0011] Furthermore, a bottom pipe is fixed to the bottom wall of the medicine barrel, and a valve is fixed to the middle of the bottom pipe.
[0012] The beneficial effects of this utility model are:
[0013] 1. In use, this utility model includes a medicine tank, an electric telescopic rod, a top plate, a motor, a first vertical shaft, a second vertical shaft, and a metering pump. First, medicine and water are added to the medicine tank. The motor drives the first vertical shaft and the stirring blade at the bottom of the first vertical shaft to rotate and mix the medicine. When the medicine needs to be changed, the first vertical shaft is disassembled and replaced with the second vertical shaft, which is fixed inside the medicine tank. The motor drives the second vertical shaft and the sponge block at the bottom of the second vertical shaft to rotate and quickly clean the inner wall of the medicine tank. Then the medicine is changed. Using this dosing device eliminates the need for multiple medicine tanks and supporting equipment, thereby reducing the floor space and investment cost.
[0014] 2. In use, this utility model includes a motor, a drive shaft, a first vertical shaft, a second vertical shaft, and a docking assembly. The first and second vertical shafts can be quickly disassembled and assembled with the drive shaft through the docking assembly, thereby improving replacement efficiency without affecting the sewage treatment efficiency. Attached Figure Description
[0015] To more clearly illustrate the technical solution of this utility model, the drawings used in the description of the specific embodiments 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.
[0016] Figure 1 This is a perspective view of the entire utility model;
[0017] Figure 2This is a first sectional view of the present invention;
[0018] Figure 3 This is a second sectional view of the present invention;
[0019] Figure 4 For the present utility model Figure 2 Enlarged view of point A in the middle.
[0020] The attached figures are labeled as follows:
[0021] 1. Base; 2. Medicine barrel; 3. Electric telescopic rod; 4. Top plate; 5. Motor; 51. Drive shaft; 6. First vertical shaft; 61. Stirring blade; 7. Second vertical shaft; 71. L-shaped plate; 72. Sponge block; 8. Connecting assembly; 81. Base plate; 82. First slot; 83. Clamping plate; 84. Spring; 85. Guide rod; 9. End plate; 91. Second slot; 10. Bottom pipe; 11. Valve; 12. Metering pump; 13. Suction pipe; 14. Drain pipe. Detailed Implementation
[0022] 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 skilled in the art without creative effort are within the protection scope of the present utility model.
[0023] like Figures 1-4 As shown, a dosing device is disclosed, comprising a base 1, a medicine tank 2 fixed to the top of the base 1, a top plate 4 on the top of the medicine tank 2, a motor 5 fixedly mounted on the upper surface of the top plate 4, a drive shaft 51 fixedly mounted at the bottom output end of the motor 5, a first vertical shaft 6 and a second vertical shaft 7 matched with the drive shaft 51, a stirring blade 61 fixedly mounted at the bottom end of the first vertical shaft 6, an L-shaped plate 71 fixedly mounted at the bottom end of the second vertical shaft 7, sponge blocks 72 fixedly mounted on the lower surface and sides of the L-shaped plate 71, a docking assembly 8 fixedly mounted at the bottom end of the drive shaft 51, and end plates 9 fixedly mounted on both the first vertical shaft 6 and the second vertical shaft 7, the end plates 9 being fixedly connected to the drive shaft 51 via the docking assembly 8, and a metering pump 12 fixedly mounted on the side of the base 1.
[0024] An electric telescopic rod 3 is fixed to the side of the upper surface of the base 1, and the top telescopic end of the electric telescopic rod 3 is fixedly connected to the top plate 4.
[0025] In this embodiment, the electric telescopic rod 3 drives the top plate 4 to rise and fall, which in turn drives the motor 5 and its bottom docking assembly 8 to rise and fall, thereby facilitating the replacement of the first vertical shaft 6 and the second vertical shaft 7.
[0026] The docking assembly 8 includes a base plate 81 fixed to the bottom end of the drive shaft 51. The base plate 81 has symmetrical first strip openings 82 on both sides. A retaining plate 83 is slidably connected inside the first strip opening 82, and the bottom end of the retaining plate 83 is provided with retaining teeth. The retaining plate 83 and the outer wall of the drive shaft 51 are fixedly connected to a spring 84. The end plate 9 has second strip openings 91 on both sides for passing through the retaining teeth, and the retaining teeth are engaged with the lower surface of the end plate 9.
[0027] The sponge block 72 is attached to the bottom wall and inner side wall of the medicine barrel 2.
[0028] When it is necessary to replace the first vertical shaft 6 or the second vertical shaft 7, first squeeze the two clamping plates 83 so that the two springs 84 are squeezed. Then, the end plate 9 at the top of the first vertical shaft 6 or the second vertical shaft 7 is attached to the bottom plate 81, and the two clamping plates 83 and the bottom clamping teeth pass through the second strip opening 91. After releasing the clamping plates 83, the springs 84 return to their original position, driving the clamping plates 83 away from the drive shaft 51. The clamping teeth will then lock onto the lower surface of the end plate 9, thus achieving a fixed connection between the end plate 9 and the bottom plate 81.
[0029] During disassembly, first squeeze the retaining plate 83 to disengage the retaining teeth from the lower surface of the end plate 9, and then remove the end plate 9 from the bottom of the base plate 81. This allows for switching between the first vertical shaft 6 and the second vertical shaft 7. When installing the first vertical shaft 6, the motor 5 drives the first vertical shaft 6 and the stirring blade 61 to stir the water and medicine. When installing the second vertical shaft 7, the motor 5 drives the L-shaped plate 71 and the sponge block 72 at the bottom of the second vertical shaft 7 to rotate, and the sponge block 72 is used to wipe and clean the bottom and inner side walls of the medicine tank 2.
[0030] Although the docking assembly 8 is connected by a spring 84, when the motor 5 drives the docking assembly 8 to rotate, the outward centrifugal force can ensure that the locking teeth are stably locked on the lower surface of the end plate 9, thereby ensuring the stability of the connection.
[0031] A guide rod 85 is fixed inside the first slot 82. The guide rod 85 passes through the card plate 83 and is slidably connected to the card plate 83.
[0032] The guide rod 85 can support the card plate 83 and guide the movement of the card plate 83.
[0033] The metering pump 12 has a suction pipe 13 and a discharge pipe 14 fixed at its inlet and outlet, respectively. The other end of the suction pipe 13 is connected to the medicine tank 2, and the discharge pipe 14 is connected to the sewage treatment equipment.
[0034] The metering pump 12 can extract the medicine from the medicine tank 2 and then pump it into the sewage treatment equipment.
[0035] A bottom pipe 10 is fixed to the bottom wall of the medicine tank 2, and a valve 11 is fixed in the middle of the bottom pipe 10. When cleaning the inside of the medicine tank 2, the valve 11 can be opened to drain the cleaning water from the bottom pipe 10.
[0036] Working principle: In use, add water and medicine to the medicine tank 2, then start the motor 5 to drive the first vertical shaft 6 and the stirring blade 61 to rotate, thereby agitating the medicine. After mixing, start the metering pump 12 to extract the medicine solution and pump it into the sewage treatment equipment. When it is necessary to change to a different medicine, the medicine tank 2 needs to be cleaned first. At this time, the first vertical shaft 6 is disassembled and replaced with the second vertical shaft 7. Then, clean water is added to the medicine tank 2. The motor 5 drives the L-shaped plate 71 and the sponge block 72 to rotate. The sponge block 72 wipes the inner wall of the medicine tank 2 to clean it. The clean water is discharged from the bottom pipe 10. After cleaning, the first vertical shaft 6 is reinstalled to mix the medicine solution.
[0037] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.
Claims
1. A dosing device, comprising a base (1), characterized in that: A medicine barrel (2) is fixed on the top of the base (1). A top plate (4) is provided on the top of the medicine barrel (2). A motor (5) is fixedly installed on the upper surface of the top plate (4). A drive shaft (51) is fixed at the bottom output end of the motor (5). A first vertical shaft (6) and a second vertical shaft (7) are provided to match the drive shaft (51). A stirring blade (61) is fixed at the bottom end of the first vertical shaft (6). An L-shaped plate (71) is fixed at the bottom end of the second vertical shaft (7). A sponge block (72) is fixed on the lower surface and side of the L-shaped plate (71). A docking assembly (8) is fixed at the bottom end of the drive shaft (51). An end plate (9) is fixed on both the first vertical shaft (6) and the second vertical shaft (7). The end plate (9) is fixedly connected to the drive shaft (51) through the docking assembly (8). A metering pump (12) is fixed on the side of the base (1).
2. The dosing device according to claim 1, characterized in that: An electric telescopic rod (3) is fixed to the side of the upper surface of the base (1), and the top telescopic end of the electric telescopic rod (3) is fixedly connected to the top plate (4).
3. The dosing device according to claim 1, characterized in that: The docking assembly (8) includes a base plate (81) fixed to the bottom end of the drive shaft (51). The base plate (81) has symmetrical first strip openings (82) on both sides. A retaining plate (83) is slidably connected inside the first strip opening (82), and a retaining tooth is provided at the bottom end of the retaining plate (83). A spring (84) is fixedly connected to the retaining plate (83) and the outer wall of the drive shaft (51). The end plate (9) has second strip openings (91) on both sides for passing through the retaining tooth. The retaining tooth is engaged with the lower surface of the end plate (9).
4. A dosing device according to claim 3, characterized in that: A guide rod (85) is fixed inside the first strip-shaped opening (82), and the guide rod (85) passes through the card plate (83) and is slidably connected to the card plate (83).
5. A dosing device according to claim 1, characterized in that: The sponge block (72) is attached to the bottom wall and inner side wall of the medicine barrel (2).
6. The dosing device according to claim 1, characterized in that: The metering pump (12) has a suction pipe (13) and a discharge pipe (14) fixed at its inlet and outlet, respectively. The other end of the suction pipe (13) is connected to the medicine tank (2), and the discharge pipe (14) is connected to the sewage treatment equipment.
7. A dosing device according to claim 1, characterized in that: The bottom wall of the medicine barrel (2) is fixed with a bottom pipe (10), and a valve (11) is fixed in the middle of the bottom pipe (10).