Backpack sterilizer

By converting the liquid disinfectant into a foam form, the backpack disinfection machine solves the problems of small coverage area and short contact time in existing technologies, achieving better disinfection effect and safety.

CN223930450UActive Publication Date: 2026-02-24SHENZHEN LONGRAY TECH
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Patent Information

Application Number
CN202520349230.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-03
Publication Date
2026-02-24
Estimated Expiration
2035-03-03

AI Technical Summary

Technical Problem

Existing backpack-style disinfection machines spray disinfectant in the form of a mist, resulting in a small coverage area, short contact time, poor uniformity, and unsatisfactory disinfection effect.

Method used

A foam pump is used to convert the liquid medicine into foam, which is then sprayed out through a handheld spray gun. The foam pump and electric liquid supply device mix the liquid with air to form stable foam, thereby expanding the coverage area and extending the contact time.

Benefits of technology

Foamy disinfectant solutions can cover object surfaces more evenly, prolong the action time, reduce evaporation loss, improve disinfection effectiveness, reduce safety risks, and save on disinfectant usage.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN223930450U_ABST
    Figure CN223930450U_ABST
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Abstract

The utility model discloses a backpack disinfector, including machine body, strap, electric liquid supply device, power supply, handheld spray gun and control circuit, said machine body includes liquid storage tank and electromechanical cavity, liquid storage tank includes liquid storage cavity, electric liquid supply device includes foam pump, the foam pump is arranged in electromechanical cavity of machine body, and the handheld spray gun is connected with the electric liquid supply device. An inlet of the foam pump is connected with an outlet of the liquid storage cavity; an inlet of the handheld spray gun is connected with an outlet of the foam pump; the control end of the foam pump is connected with the control circuit. Liquid medicine is converted into foam to be sprayed out through the foam pump and the handheld spray gun, and the foamed liquid medicine is large in coverage area, long in contact time, good in uniformity and good in disinfection effect.
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Description

[Technical Field]

[0001] This utility model relates to portable disinfection equipment, and more particularly to a backpack disinfection machine. [Background Technology]

[0002] A backpack sterilizer is a portable sterilization device that is commonly used in various situations requiring on-site sterilization.

[0003] Utility model patent number 202222236765.8 discloses a shoulder strap sprayer, including a liquid storage tank, a shoulder strap connected to one side of the liquid storage tank, and a handheld nozzle connected to the other side of the liquid storage tank. The liquid storage tank includes a base at the bottom, a liquid storage chamber above the base, and a support portion connecting the base and the liquid storage chamber. A three-sided hollowed-out storage area is provided corresponding to the support portion and located between the base and the liquid storage chamber. The storage area is covered with a U-shaped baffle. A booster pump and a battery electrically connected to the booster pump are provided in the storage area. The inlet end of the booster pump is connected to the liquid storage chamber, and the outlet end is connected to the handheld nozzle. By housing the electrical equipment in the space formed by the support portion, the U-shaped baffle, and the storage area, and separating it from the liquid storage chamber, the overall structure of the liquid storage tank is more integrated, occupies less space, and improves the user experience.

[0004] When the backpack sprayer of this utility model uses a booster pump for spray disinfection, it can only spray out a mist of liquid medicine. The coverage area of ​​the liquid medicine is small, the contact time is short, the uniformity is poor, and the disinfection effect is not good enough. [Summary of the Invention]

[0005] The technical problem to be solved by this utility model is to provide a backpack disinfection machine with good disinfection effect.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is a backpack-type disinfection machine, including a body, a shoulder strap, an electric liquid supply device, a power supply, a handheld spray gun, and a control circuit. The body includes a liquid storage tank and an electromechanical chamber. The liquid storage tank includes a liquid storage cavity. The electric liquid supply device includes a foam pump, which is arranged in the electromechanical chamber of the body. The inlet of the foam pump is connected to the outlet of the liquid storage cavity, and the inlet of the handheld spray gun is connected to the outlet of the foam pump. The foam pump is powered by the power supply, and the control terminal of the foam pump is connected to the control circuit.

[0007] The backpack-type sterilizer described above has a liquid storage tank comprising an L-shaped base, which includes a vertical plate and a base plate. The vertical plate is located at the rear of the machine body, and the lower end of the rear of the liquid storage chamber is connected to the vertical plate. The space between the base plate and the liquid storage chamber is the electromechanical cavity. The machine body includes a U-shaped cover plate, which closes the electromechanical cavity.

[0008] The backpack-type sterilizer described above has a bottom plate of the liquid storage chamber that is higher at the front and lower at the back, with the connector for the liquid storage chamber outlet located at the lowest point of the rear end of the bottom plate; the inlet of the foam pump is connected to the outlet of the liquid storage chamber via a first flexible hose.

[0009] The backpack-type sterilizer described above includes a power supply consisting of a rechargeable battery, a power switch, and a charging circuit, with the charging circuit including a charging base. The rechargeable battery is arranged in the electromechanical cavity and sits on the base of the liquid storage tank. The foam pump is arranged on the top surface of the rechargeable battery, and the power switch and charging base are fixed outside the U-shaped cover.

[0010] The backpack-type sterilizer described above includes a control circuit board, which is arranged in the electromechanical cavity.

[0011] The backpack disinfection machine described above includes a handheld spray gun with a hand-operated flow control valve. The inlet end of the handheld spray gun is connected to the outlet of the foam pump via a second hose, which passes through a U-shaped cover and connects to the outlet of the foam pump.

[0012] The backpack sterilizer described above has a liquid inlet at the top of the liquid storage chamber, a cover on the outside of the liquid inlet, and a filter below the liquid inlet.

[0013] The backpack-style sterilizer described above has its shoulder strap installed at the rear of the machine body.

[0014] The backpack-type sterilizer described above has a transparent liquid storage chamber with liquid level markings on its side.

[0015] The backpack-type sterilizer described above has a plurality of reinforcing ribs at the rear of the electromechanical cavity, which connect the liquid storage cavity, the upright plate, and the base.

[0016] The backpack disinfection machine of this invention uses a foam pump and a handheld spray gun to convert the liquid medicine into foam and spray it out. The foamy liquid medicine has a large coverage area, long contact time, good uniformity, and good disinfection effect. [Image Description]

[0017] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0018] Figure 1 This is a front view of the backpack foam sterilizer according to an embodiment of the present invention.

[0019] Figure 2 Yes, yes Figure 1 AA section view in the image.

[0020] Figure 3 yes Figure 1 BB section view in the middle.

[0021] Figure 4 This is a perspective view of a backpack-type foam sterilizer according to an embodiment of this utility model.

[0022] Figure 5 yes Figure 1 CC section view in the image.

[0023] Figure 6 This is a front view of the backpack foam sterilizer with the U-shaped cover removed, according to an embodiment of this utility model.

[0024] Figure 7 This is a right view of the backpack foam sterilizer with the U-shaped cover removed according to an embodiment of this utility model.

[0025] Figure 8 This is a left view of the backpack foam sterilizer with the U-shaped cover removed, according to an embodiment of this utility model.

[0026] Figure 9 This is a perspective view of the backpack foam sterilizer with the U-shaped cover removed according to an embodiment of this utility model.

[0027] Figure 10 This is a perspective view of the backpack foam sterilizer with the U-shaped cover removed, according to another embodiment of the present invention.

[0028] Figure 11 This is a front view of the liquid storage tank of the backpack foam disinfection machine according to an embodiment of this utility model. [Detailed Implementation]

[0029] The structure and principle of the backpack foam sterilizer of this utility model embodiment are as follows: Figures 1 to 11 As shown, the device includes a body 100, two shoulder straps 01, an electric liquid supply device, a power supply, a handheld spray gun 10, and a control circuit. The body 100 includes a liquid storage tank 20, a U-shaped cover 30, and an electromechanical cavity M. The two shoulder straps 01 are installed at the rear of the body 100.

[0030] The electric liquid supply device includes a foam pump 40, which is arranged in the electromechanical cavity M of the body 100. The inlet of the foam pump 40 is connected to the outlet of the liquid storage chamber 20A, and the inlet of the spray gun 10 is connected to the outlet of the foam pump 40. The foam pump 40 is powered by an electrical supply, and its control terminal is connected to a control circuit. The foam pump 40 is an electric device that converts liquid into foam. The function of the foam pump is to form stable foam by mixing liquid with air.

[0031] The liquid storage tank 20 includes a liquid storage cavity 20A and an L-shaped base 20B.

[0032] The base plate 21 of the liquid storage chamber 20A is higher at the front and lower at the back, with the connector for the outlet 22 of the liquid storage chamber 20A located at the lowest point of the rear end of the base plate 21. The top of the liquid storage chamber 20A includes an inlet 23, which is covered by a cover 24, and a filter 25 is installed below the inlet. The liquid storage chamber 20A is a transparent box, and the side of the liquid storage chamber 20A is marked with liquid level graduations.

[0033] The L-shaped base 20B includes a vertical plate 26 and a base 27. The vertical plate 26 is located at the rear of the body 100, and the lower end of the rear of the liquid storage chamber 20A is connected to the top of the vertical plate 26. The space between the base 27 and the liquid storage chamber 20A is the electromechanical cavity M. A U-shaped cover plate 30 is used to close the electromechanical cavity M. The rear ends of the two side plates 31 of the U-shaped cover plate 30 are movably connected to the two ends of the vertical plate 26 laterally. The upper end of the U-shaped cover plate 30 is movably connected to the lower end of the liquid storage chamber 20A, and the lower end of the U-shaped cover plate 30 is movably connected to the periphery of the base 27. The rear of the electromechanical cavity M has multiple reinforcing ribs 28, which connect the liquid storage chamber 20A, the vertical plate 26, and the base 27.

[0034] The power supply includes a rechargeable battery 02, a power switch 03, and a charging circuit, the charging circuit including a charging base 04. The rechargeable battery 02 is arranged in the electromechanical cavity M, sitting on the base 27 of the liquid storage tank 20. The power switch 03 and the charging base 04 are fixed to the outside of a side plate 31 of the U-shaped cover 30. A foam pump 40 is arranged on the top surface of the rechargeable battery 02, and the inlet of the foam pump 40 is connected to the outlet 22 of the liquid storage cavity 20A through a first hose 41.

[0035] The control circuit includes a control circuit board 05, which is arranged in the electromechanical cavity M.

[0036] The handheld spray gun 10 includes a hand-operated flow control valve 11. The inlet end of the spray gun 10 is connected to the outlet of the foam pump 40 via a second hose 12. The second hose 12 passes through a side plate 31 of the U-shaped cover plate 30 and is connected to the outlet 42 of the foam pump 40.

[0037] The backpack foam disinfection machine of this utility model uses a rechargeable battery as power to drive a foam pump. With the combined action of the nozzles, the liquid medicine is atomized into a thin layer of foam. It can be widely used in disease control, fire protection, third-party service agencies, and other nuclear, biological and chemical urban emergency response agencies.

[0038] The backpack-type foam sterilizer of this utility model has the following beneficial effects:

[0039] 1) Good coverage: The foam can adhere more evenly to the surface of the object, especially in irregular or hard-to-reach areas, thereby improving the disinfection effect.

[0040] 2) Extended action time: Disinfectants in foam form can stay on the surface for a longer time, increasing the contact time between the active ingredients and pathogens, thus enhancing the bactericidal ability.

[0041] 3) Reduce evaporation loss: The foam structure helps slow down the evaporation rate of the liquid, ensuring that more disinfectant can be effective instead of evaporating quickly.

[0042] 4) Improved safety: The foam form reduces the risk of splashing, lowers the possibility of operators inhaling or coming into skin contact with harmful substances, and improves safety during use.

[0043] 5) Good visual feedback: Using foam spray makes it easier to determine which areas have been treated and which areas need further disinfection, thus ensuring full coverage.

[0044] 6) Cost savings: Because disinfectant can adhere better to the surface and remain for a longer time in foam form, a smaller amount may be needed to achieve a good disinfection effect, thus saving costs.

Claims

1. A backpack-style sterilizer, comprising a body, a shoulder strap, an electric liquid supply device, a power supply, a handheld spray gun, and a control circuit, wherein the body includes a liquid storage tank and an electromechanical chamber, the liquid storage tank including a liquid storage cavity, characterized in that, The electric liquid supply device includes a foam pump, which is arranged in the electromechanical cavity of the machine body. The inlet of the foam pump is connected to the outlet of the liquid storage cavity, and the inlet of the handheld spray gun is connected to the outlet of the foam pump. The foam pump is powered by a power source, and the control terminal of the foam pump is connected to the control circuit.

2. The backpack-type sterilizer according to claim 1, characterized in that, The liquid storage tank includes an L-shaped base, which includes a vertical plate and a base plate. The vertical plate is located at the rear of the machine body, and the lower end of the rear of the liquid storage chamber is connected to the vertical plate. The space between the base plate and the liquid storage chamber is the electromechanical cavity. The machine body includes a U-shaped cover plate, which closes the electromechanical cavity.

3. The backpack-type sterilizer according to claim 1, characterized in that, The bottom plate of the liquid storage chamber is higher at the front and lower at the back, and the connector of the liquid storage chamber outlet is located at the lowest part of the rear end of the bottom plate; the inlet of the foam pump is connected to the outlet of the liquid storage chamber through the first hose.

4. The backpack-type sterilizer according to claim 2, characterized in that, The power source includes a rechargeable battery, a power switch, and a charging circuit. The charging circuit includes a charging base. The rechargeable battery is arranged in the electromechanical cavity and sits on the base of the liquid storage tank. The foam pump is arranged on the top surface of the rechargeable battery. The power switch and the charging base are fixed outside the U-shaped cover.

5. The backpack-type sterilizer according to claim 4, characterized in that, The control circuit includes a control circuit board, which is arranged in the electromechanical cavity.

6. The backpack-type sterilizer according to claim 2, characterized in that, The handheld spray gun includes a hand-operated flow control valve. The inlet of the handheld spray gun is connected to the outlet of the foam pump via a second hose, which passes through a U-shaped cover and connects to the outlet of the foam pump.

7. The backpack-type sterilizer according to claim 1, characterized in that, The top of the liquid storage chamber includes a liquid inlet, which is covered by a tank cover. A filter is installed below the liquid inlet.

8. The backpack-type sterilizer according to claim 1, characterized in that, The shoulder strap is installed at the rear of the machine body.

9. The backpack-type sterilizer according to claim 1, characterized in that, The liquid storage chamber is a transparent box, and the side of the liquid storage chamber is marked with liquid level markings.

10. The backpack-type sterilizer according to claim 2, characterized in that, The rear part of the electromechanical cavity includes multiple reinforcing ribs, which connect the liquid storage cavity, the vertical plate, and the base.

Citation Information

Patent Citations

  • Strap type spraying device

    CN218167426U