A portable powder stirring device based on a duster medicine box

By designing a convenient powder mixing device and adopting a mixing mechanism with soft scrapers and shear blades, the problem of uneven mixing in the powder spraying machine's tank was solved, achieving efficient and uniform mixing of powder and reducing labor intensity.

CN224356903UActive Publication Date: 2026-06-16GUANGXI GUMASHAN TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUANGXI GUMASHAN TECH CO LTD
Filing Date
2025-04-18
Publication Date
2026-06-16

AI Technical Summary

Technical Problem

Traditional powder spraying machines often result in uneven mixing in the powder tank, and existing mixing devices are ineffective, leading to uneven mixing that is time-consuming and labor-intensive.

Method used

A convenient powder mixing device including first and second mixing mechanisms was designed. It uses a soft scraper and a shearing blade, combined with a hand crank drive, which can thoroughly mix and scrape the powder in the medicine tank.

🎯Benefits of technology

It improves the uniformity of powder mixing, reduces mixing time, lowers labor intensity, and enhances the prevention and control effect.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224356903U_ABST
    Figure CN224356903U_ABST
Patent Text Reader

Abstract

The utility model discloses a portable powder stirring device based on powder spraying machine medicine box, including medicine box, first stirring mechanism, driving mechanism, and medicine box front and back side wall is equipped with mounting panel respectively, the horizontal setting of pivot front and back is in the medicine box, and the both ends thereof pass through the front and back two side walls of medicine box, and is connected with mounting panel rotation, and pivot rear end is connected with driving mechanism, first stirring mechanism includes first connecting cylinder, first stirring vane, first scraper, first connecting cylinder fixedly covers and is equipped in pivot middle part, first stirring vane is equipped with two, sets up respectively on the left and right side wall of first connecting cylinder, first scraper is respectively horizontally fixed and is equipped on the side of every first stirring vane away from first connecting cylinder, and the other end contacts with medicine box inboard, and every first stirring vane on first scraper is equipped with two, and the end of two first scrapers on every first stirring vane close to medicine box inboard is mutually far away. The utility model can improve the mixing uniformity of the medicine powder in the powder spraying machine medicine box.
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Description

Technical Field

[0001] This utility model belongs to the field of powder spraying machine technology, and in particular relates to a convenient powder mixing device based on the powder spraying machine's medicine tank. Background Technology

[0002] Backpack dusters are widely used spraying equipment in agriculture and horticulture. When using a duster to spray powdered pesticides, multiple powdered pesticides need to be mixed and compounded on-site according to the needs of crop pest and disease control. The traditional method of pesticide mixing involves placing multiple powdered pesticides into a cloth bag, manually shaking the bag to mix the pesticides, and then loading it into the duster's tank. This method is not only time-consuming and labor-intensive, but also inefficient and results in uneven mixing. Furthermore, existing dusters, such as... Figure 1 As shown, the irregular shape of its medicine box and the simple stirring device, such as a hand drill with stirring blades, make it difficult to effectively stir all parts of the powder sprayer's medicine box, and the problem of uneven mixing still exists. Utility Model Content

[0003] The purpose of this invention is to provide a convenient powder mixing device based on the powder sprayer's tank, so as to solve the technical problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A portable powder mixing device based on the medicine tank of a powder spraying machine includes a medicine tank, a rotating shaft, a first mixing mechanism, and a drive mechanism. The medicine tank has mounting plates on its front and rear side walls. The rotating shaft is horizontally positioned inside the medicine tank, with its front and rear ends passing through the front and rear side walls and rotatably connected to the mounting plates. The rear end of the rotating shaft extends out of the mounting plate on the rear side wall of the medicine tank and is connected to the drive mechanism. The first mixing mechanism includes a first connecting cylinder, a first mixing blade, and a first scraper. The first connecting cylinder is fixedly sleeved in the middle of the rotating shaft. Two first mixing blades are provided, respectively located on the left and right side walls of the first connecting cylinder. The first scrapers are made of a soft material and are horizontally fixed on the side of each first mixing blade away from the first connecting cylinder, with the other end contacting the inner side wall of the medicine tank. Each first mixing blade has two scrapers, with the ends of the two scrapers on each first mixing blade near the inner side wall of the medicine tank being far apart from each other.

[0006] Furthermore, the first stirring mechanism also includes shear blades; the shear blades are respectively arranged horizontally back and forth on the side of the first stirring blade away from the first connecting cylinder.

[0007] Furthermore, the first stirring mechanism also includes front and rear scrapers; the front and rear scrapers are made of soft material and are arranged horizontally front and rear, with one end located on the front and rear sides of each shearing blade and the other end in contact with the inner wall of the medicine box.

[0008] Furthermore, it also includes a second stirring mechanism; the second stirring mechanism includes a second connecting cylinder, a second stirring blade, and a second scraper; the second connecting cylinder is fixedly sleeved on the rotating shaft; the second stirring blades are respectively vertically arranged on the upper and lower side walls of the second connecting cylinder; the second scraper is made of soft material, one end of the second scraper is respectively fixed on the side of each second stirring blade away from the connecting cylinder, and the other end is in contact with the inner side wall of the medicine box.

[0009] Furthermore, there are two second stirring mechanisms, located on the front and rear sides of the first stirring mechanism, respectively.

[0010] Furthermore, the drive mechanism includes a hand crank, a motor, a hand drill, and a powder sprayer.

[0011] Furthermore, the driving mechanism is a hand crank; the hand crank is detachably connected to one end of the rotating shaft that extends out from the rear side of the medicine box.

[0012] Furthermore, it also includes a limiting rod; the limiting rod is vertically set on the upper and lower side walls of the end of the rotating shaft that extends out of the medicine box; a slot is provided on the connection end of the hand crank and the rotating shaft; the upper and lower side walls of the slot are provided with slots.

[0013] The advantages of this utility model compared to the prior art are as follows:

[0014] 1. By setting up a first stirring mechanism and a second stirring mechanism, this utility model can stir and mix the powder in the powder spraying machine's tank, thereby improving the uniformity of powder mixing.

[0015] 2. In the first and second stirring mechanisms of this utility model, by setting the first and second scrapers, the powder on the side wall of the medicine box can be scraped off while stirring, so as to avoid inaccurate mixing of the medicine and affect the prevention and control effect. At the same time, the first and second scrapers are in elastic contact with the medicine box and can deform according to the structure of the medicine box, thereby ensuring the scraping effect.

[0016] 3. This utility model features a detachable hand crank, making it convenient to use and carry, while also reducing the burden on operators. Attached Figure Description

[0017] Figure 1 This is a structural diagram of an existing powder spraying machine and its medicine tank;

[0018] Figure 2 This is a schematic diagram of the structure of the medicine box of this utility model;

[0019] Figure 3 This is a structural schematic diagram of the medicine box of this utility model from another perspective;

[0020] Figure 4 This is a schematic diagram of the internal structure of the medicine box of this utility model;

[0021] Figure 5 This is a schematic diagram of the connection structure between the first stirring mechanism and the second stirring mechanism of this utility model;

[0022] Figure 6 This is a schematic diagram of the connection structure of the drive mechanism of this utility model;

[0023] In the attached diagram, 1-medicine box; 11-mounting plate;

[0024] 2-Rotating shaft; 21-Limit rod;

[0025] 3-First stirring mechanism; 31-First connecting cylinder; 32-First stirring blade; 33-First scraper; 34-Shearing blade; 35-Front and rear scrapers;

[0026] 4-Second stirring mechanism; 41-Second connecting cylinder; 42-Second stirring blade; 43-Second scraper;

[0027] 5-Drive mechanism; 51-Hand crank; 511-Slot; 512-Card slot. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this utility model clearer, the following detailed description is provided with reference to the accompanying drawings and preferred embodiments. However, it should be noted that many details listed in the specification are merely to provide the reader with a thorough understanding of one or more aspects of this utility model, and these aspects can be achieved even without these specific details.

[0029] like Figure 2-6As shown, a convenient powder mixing device based on the powder spraying machine's medicine tank includes a medicine tank 1, a rotating shaft 2, a first mixing mechanism 3, a second mixing mechanism 4, and a drive mechanism 5. The medicine tank 1 is detachably mounted on the powder spraying machine. It has a feed inlet at the top and a cover that can be opened or closed at the feed inlet, and a discharge outlet at the bottom. The bottom can be assembled with the top of the powder spraying machine. Mounting plates 11 are provided on the front and rear side walls. The rotating shaft 2 is horizontally positioned inside the medicine tank 1, with its front and rear ends passing through the front and rear side walls of the medicine tank 1 and rotatably connected to the mounting plates 11 via bearings. The rear end of the rotating shaft 2 extends out of the mounting plate 11 on the rear side wall of the medicine tank 1 and is connected to the drive mechanism 5. The rotating shaft 2 can rotate on the medicine tank 1 and the mounting plates 11. The drive mechanism 5 drives the rotating shaft 2 to rotate. The shaft 2 rotates, thereby driving the first stirring mechanism 3 and the second stirring mechanism 4 to rotate. The first stirring mechanism 3 includes a first connecting cylinder 31, a first stirring blade 32, and a first scraper 33. The first connecting cylinder 31 is fixedly sleeved in the middle of the rotating shaft 2. There are two first stirring blades 32, which are respectively set on the left and right side walls of the first connecting cylinder 31. The first scraper 33 is made of soft material and is fixed horizontally in front and behind on the side of each first stirring blade 32 away from the first connecting cylinder 31. The other end is in contact with the inner side wall of the medicine box 1. There are two first scrapers 33 on each first stirring blade 32, and the ends of the two first scrapers 33 on each first stirring blade 32 that are close to the inner side wall of the medicine box 1 are far apart from each other. The rotating shaft 2 rotates, driving the first connecting cylinder 31 to rotate. The first connecting cylinder 31 drives the first stirring blade 32 and the first scraper 33 to rotate. During the rotation, the first stirring blade 32 stirs and mixes the powder in the medicine tank 1, while the first scraper 33 also plays a certain stirring role and can scrape off the powder on the inner wall of the medicine tank 1. Since the shape of the medicine tank 1 of the duster is that the left and right sides are longer than the top and bottom sides, the first scraper 33, made of soft material, has an elastic deformation contact with the inner wall of the medicine tank 1. During the stirring process, when the first scraper 33 contacts different side walls of the medicine tank 1, for example, when rotating to the left and right side walls of the medicine tank 1, the first scraper 33 adapts to lengthen, while when rotating to the top and bottom side walls, it deforms to shorten its length, so that it can contact all side walls of the medicine tank 1, thereby scraping off the powder adhering to the inner wall of the medicine tank 1 and avoiding inaccurate mixing of the medicine, which would affect the prevention and control effect. The two first scrapers 33 on each first stirring blade 32 have an outwardly expanding V-shaped structure, which increases the scraping range.

[0030] The first stirring mechanism 3 further includes shearing blades 34; the shearing blades 34 are horizontally arranged front and back on the side of the first stirring blade 32 away from the first connecting cylinder 31. Since the first stirring mechanism 3 is located in the middle of the medicine tank 1, which is also the location where the medicine powder is most concentrated, the shearing blades 34 provide shearing force, making it easier to stir the medicine powder in this area and improving the uniformity of stirring and mixing.

[0031] The first stirring mechanism 3 further includes front and rear scrapers 35; the front and rear scrapers 35 are made of soft material and are arranged horizontally front and rear, with one end positioned on the front and rear sides of each shear blade 34, and the other end contacting the inner sidewall of the medicine tank 1. The front and rear scrapers 35 can scrape off the powder on the front and rear sidewalls of the medicine tank 1, further improving the mixing uniformity.

[0032] It also includes a second stirring mechanism 4; the second stirring mechanism 4 includes a second connecting cylinder 41, a second stirring blade 42, and a second scraper 43; the second connecting cylinder 41 is fixedly sleeved on the rotating shaft 2; the second stirring blades 42 are respectively vertically arranged on the upper and lower side walls of the second connecting cylinder 41; the second scraper 43 is made of soft material, one end of the second scraper 43 is respectively fixed on the side of each second stirring blade 42 away from the connecting cylinder, and the other end contacts the inner side wall of the medicine box 1. The rotating shaft 2 rotates, driving the second connecting cylinder 41 to rotate, and the second connecting cylinder 41 drives the second stirring blade 42 and the second scraper 43 to rotate. During the rotation, the second stirring blade 42 and the second scraper 43 stir and mix the medicine powder in the medicine box 1, and the second scraper 43 has the same function as the first scraper 33, which can scrape off the medicine powder on the side wall of the medicine box 1.

[0033] Two second stirring mechanisms 4 are provided, located on the front and rear sides of the first stirring mechanism 3, respectively. The first stirring blade 32 and the first scraper 33 of the first stirring mechanism 3 stir the middle part of the medicine tank 1, and the second scraper 43 scrapes off the powder on the middle part of the left, right and upper and lower side walls of the medicine tank 1. The second stirring blade 42 and the second scraper 43 of the two second stirring mechanisms 4 stir the front and rear sides of the medicine tank 1, and the second scraper 43 scrapes off the front and rear sides of the left, right and upper and lower side walls of the medicine tank 1. The first stirring mechanism 3 and the two second stirring mechanisms 4 cooperate with each other to maximize the mixing uniformity and the scraping efficiency of the powder adhering to the inner side wall of the medicine tank 1.

[0034] In a further embodiment, the first stirring blade 32 of the first stirring mechanism 3 and the second stirring blade 42 of the second stirring mechanism 4 are perpendicular to each other and arranged in a cross-shaped structure, which can synchronously stir all areas during the stirring process and improve continuity.

[0035] The first scraper 33, the second scraper 43, and the front and rear scrapers 35 are made of rubber material.

[0036] The drive mechanism 5 includes a hand crank 51, a motor, and a hand drill.

[0037] The drive mechanism 5 is a hand crank 51; the hand crank 51 is detachably connected to one end of the rotating shaft 2 extending from the rear side of the medicine tank 1. Since spraying operations need to be carried out at the work site, the hand crank 51 is easier to carry than other drive structures. Furthermore, since backpack powder sprayers require manual carrying, the detachable structure allows the hand crank 51 to be removed after mixing, reducing the weight carried by the operator and alleviating their burden.

[0038] In another embodiment, the drive mechanism 5 is a motor built into the powder spraying machine, which is connected to the flexible shaft 2 via the motor built into the powder spraying machine.

[0039] It also includes a limiting rod 21; the limiting rod 21 is vertically disposed on the upper and lower side walls of the end of the rotating shaft 2 that extends out of the medicine box 1; a slot 511 is provided on the connection end of the hand crank 51 and the rotating shaft 2; the upper and lower side walls of the slot 511 are provided with retaining grooves 512. By inserting the slot 511 into the rear end of the rotating shaft 2, the limiting rod 21 is locked in the retaining groove 512, so that rotating the hand crank 51 can drive the rotating shaft 2 to rotate.

[0040] The working principle of this utility model is as follows:

[0041] Install the medicine box 1 on the powder spraying machine, put the medicine powder to be mixed into the feed port at the top of the medicine box 1, and then close the feed port through the box cover. Insert the slot 511 of the hand crank 51 into the end of the rotating shaft 2 that extends out of the medicine box 1, and make the slot 512 lock the limiting rod 21 on the rotating shaft 2. Crank the hand crank 51 to drive the rotating shaft 2 to rotate. The rotating shaft 2 synchronously drives the first stirring mechanism 3 and the second stirring mechanism 4 to rotate. The first stirring blade 32 of the first stirring mechanism 3 and the second stirring blade 42 of the second stirring mechanism 4 fully stir the middle and front and rear parts of the medicine box 1. The shearing blade 34 improves the stirring efficiency, while the first scraper 33 and the second scraper 43, while stirring the medicine box 1, scrape off the medicine powder adhering to the left, right and upper and lower side walls of the medicine box 1. The front and rear scrapers 35 scrape off the medicine powder on the front and rear side walls of the medicine box 1.

[0042] After stirring for a certain period of time, remove the hand crank 51 from the rotating shaft 2 to complete the stirring. The operator can then carry the powder sprayer to the work site to spray pesticides.

[0043] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A portable powder mixing device based on the powder sprayer's reagent tank, comprising a reagent tank (1), a rotating shaft (2), a first mixing mechanism (3), and a driving mechanism (5), characterized in that: The medicine box (1) is provided with mounting plates (11) on its front and rear side walls respectively; the rotating shaft (2) is horizontally arranged in the medicine box (1) at the front and rear, and its front and rear ends pass through the front and rear side walls of the medicine box (1) and are rotatably connected to the mounting plates (11), and the rear end of the rotating shaft (2) extends out of the mounting plate (11) on the rear side wall of the medicine box (1) and is connected to the drive mechanism (5); the first stirring mechanism (3) includes a first connecting cylinder (31), a first stirring blade (32), and a first scraper (33); the first connecting cylinder (31) is fixedly sleeved in the middle of the rotating shaft (2). The first stirring blade (32) is provided in two, and is respectively set on the left and right side walls of the first connecting cylinder (31); the first scraper (33) is made of soft material, and the first scraper (33) is fixed horizontally in front and behind on the side away from the first connecting cylinder (31) of each first stirring blade (32), and the other end is in contact with the inner side wall of the medicine box (1). There are two first scrapers (33) on each first stirring blade (32), and the two first scrapers (33) on each first stirring blade (32) are far apart from each other at the end near the inner side wall of the medicine box (1).

2. The portable powder mixing device based on the powder sprayer's tank according to claim 1, characterized in that: The first stirring mechanism (3) further includes shear blades (34); the shear blades (34) are respectively arranged horizontally on the side away from the first stirring blade (32) away from the first connecting cylinder (31).

3. A portable powder mixing device based on the powder sprayer's tank according to claim 2, characterized in that: The first stirring mechanism (3) further includes front and rear scrapers (35); the front and rear scrapers (35) are made of soft material and are arranged horizontally in front and behind, with one end set on the front and rear sides of each shearing blade (34) and the other end in contact with the inner wall of the medicine box (1).

4. A portable powder mixing device based on the powder sprayer's tank according to claim 1, characterized in that: It also includes a second stirring mechanism (4); the second stirring mechanism (4) includes a second connecting cylinder (41), a second stirring blade (42), and a second scraper (43); the second connecting cylinder (41) is fixedly sleeved on the rotating shaft (2); the second stirring blade (42) is vertically arranged on the upper and lower side walls of the second connecting cylinder (41); the second scraper (43) is made of soft material, one end of the second scraper (43) is fixedly arranged on the side of each second stirring blade (42) away from the connecting cylinder, and the other end is in contact with the inner wall of the medicine box (1).

5. A portable powder mixing device based on the powder sprayer's tank according to claim 4, characterized in that: The second stirring mechanism (4) is provided in two parts, located on the front and rear sides of the first stirring mechanism (3).

6. A portable powder mixing device based on the powder sprayer's tank according to claim 1, characterized in that: The drive mechanism (5) includes a hand crank (51), a motor, a hand drill, and a powder sprayer.

7. A portable powder mixing device based on the powder sprayer's tank according to claim 6, characterized in that: The drive mechanism (5) is a hand crank (51); the hand crank (51) is detachably connected to one end of the rotating shaft (2) that extends out of the medicine box (1).

8. A portable powder mixing device based on the powder sprayer's tank according to claim 7, characterized in that: It also includes a limiting rod (21); the limiting rod (21) is vertically set on the upper and lower side walls of the end of the rotating shaft (2) that extends out of the medicine box (1); a slot (511) is provided on the connection end of the hand crank (51) and the rotating shaft (2); the upper and lower side walls of the slot (511) are provided with slots (512).