阅读说明：本技术 一种高效率静音负压干手器 (High-efficiency mute negative pressure hand dryer ) 是由 潘劲松 姜干 贾春红 聂旭东 李焰 吕康兆 于 2020-12-17 设计创作，主要内容包括：本发明公开了一种高效率静音负压干手器,涉及卫生洁具技术领域。它包含壳体,所述壳体的前端干手口内侧底部设置有若干个触发开关,所述壳体的内部设置有引导体,引导体内设置有控制装置和真空泵,且控制装置与真空泵电连接,所述真空泵的前端进气口处设置有透气罩,且透气罩的前端与干手口相对应,所述真空泵的后端设置有排风口；所述壳体的左右两侧与隔离罩连为一体,且壳体左、右两侧分别为左风道和右风道,所述左风道和右风道内均设置有热源,且左风道和右风道的前端与干手口相通。本发明解决了负压干手效率低、噪音大、响应不灵敏、断电响应延时、传统干手器造成细菌、病毒传播的问题。(The invention discloses a high-efficiency mute negative pressure hand dryer, and relates to the technical field of sanitary ware. The hand drying device comprises a shell, wherein a plurality of trigger switches are arranged at the inner bottom of a hand drying opening at the front end of the shell, a guide body is arranged in the shell, a control device and a vacuum pump are arranged in the guide body, the control device is electrically connected with the vacuum pump, a ventilation cover is arranged at an air inlet at the front end of the vacuum pump, the front end of the ventilation cover corresponds to the hand drying opening, and an air outlet is arranged at the rear end of the vacuum pump; the left side and the right side of the shell are connected with the isolation cover into a whole, the left side and the right side of the shell are respectively provided with a left air duct and a right air duct, heat sources are arranged in the left air duct and the right air duct, and the front ends of the left air duct and the right air duct are communicated with the hand drying opening. The invention solves the problems of low negative pressure hand drying efficiency, high noise, insensitive response, delayed power-off response and bacterial and virus transmission caused by the traditional hand dryer.)

1. A high-efficiency mute negative pressure hand dryer comprises a shell and is characterized in that a plurality of trigger switches are arranged at the inner bottom of a front end hand drying port of the shell, a guide body is arranged inside the shell, a control device and a vacuum pump are arranged in the guide body, the control device is electrically connected with the vacuum pump, a ventilation cover is arranged at a front end air inlet of the vacuum pump, the front end of the ventilation cover corresponds to the hand drying port, and an air outlet is arranged at the rear end of the vacuum pump; the left side and the right side of the shell are connected with the isolation cover into a whole, the left side and the right side of the shell are respectively provided with a left air duct and a right air duct, heat sources are arranged in the left air duct and the right air duct, and the front ends of the left air duct and the right air duct are communicated with the hand drying opening.

2. The high-efficiency mute negative pressure hand dryer as claimed in claim 1, wherein an indicator light is arranged on the upper portion of the outer side of the hand drying port at the front end of the casing, and the indicator light is electrically connected with the control device.

3. The high efficiency, low noise, negative pressure hand dryer of claim 1, wherein said hand dryer has a suction plate enclosed within said hand dryer opening.

4. The high-efficiency mute negative pressure hand dryer as claimed in claim 1, wherein the left air duct and the right air duct constitute a circulating air duct, and the circulating air duct is connected with the isolation cover to form a semi-closed internal circulating channel.

5. A high efficiency, silent, negative pressure hand dryer as claimed in claim 1, wherein said trigger switch is a reflective infrared switch.

6. The high-efficiency mute negative pressure hand dryer as claimed in claim 1, wherein the control device is composed of a relay, a connecting wire and a power plug which are electrically connected in sequence, the relay and the trigger switch form a control circuit, and the trigger switch responds to control the on-off of the relay so as to control the power switch of the whole circuit.

7. A high efficiency silent vacuum hand dryer as claimed in claim 1, wherein the vacuum pump is a low power silent vacuum pump and is connected to the guide body and the shield to draw ambient air into the shield and create a negative pressure in the guide body.

8. The high efficiency, silent, negative pressure hand dryer as claimed in claim 1, wherein said heat source is a rapid heating device located in the circulating air path and operating simultaneously with the vacuum pump to heat the air passing through the circulating air path.

9. The high-efficiency mute negative pressure hand dryer as claimed in claim 1, wherein the circulating air duct is internally provided with an ultraviolet lamp electrically connected with the control device, the ultraviolet lamp and the vacuum pump work simultaneously to sterilize the gas passing through the circulating air duct.

Technical Field

The invention relates to the technical field of sanitary ware, in particular to a hand dryer for drying hands, and particularly relates to a high-efficiency mute negative pressure hand dryer.

Background

With the development of the times, hand dryers are installed in many public places, most of the hand dryers in the market are air blowing type hand dryers, the principle of the air blowing type hand dryers is that a fan generates strong air flow to pass through a heating device and the surface of hand skin, so that the effect of drying hands is achieved, bacteria in the air can be directly blown to the surface of the hand skin in the hand blowing process, the spread range of the bacteria and viruses can be expanded, environmental pollution is caused, great potential safety hazards are caused to public health, many air blowing type hand dryers are made at home and abroad, and the air blowing type hand dryers can be sources of germ breeding and infection.

The negative pressure hand dryer with strong safety and reliability does not exist in the market, and the injection type hand dryer is not allowed to be used in special application occasions such as hospitals.

Therefore, the development of a high-efficiency mute negative pressure hand dryer becomes urgent.

Disclosure of Invention

Technical problem to be solved

The invention aims to provide a high-efficiency mute negative pressure hand dryer, which aims to solve the problems that no negative pressure hand dryer with strong safety and reliability exists in the market and a jet type hand dryer is not allowed to be used in special application occasions such as hospitals and the like in the background art.

(II) technical scheme

In order to achieve the purpose, the invention provides the following technical scheme: a high-efficiency mute negative pressure hand dryer comprises a shell, wherein a plurality of trigger switches are arranged at the inner bottom of a hand drying port at the front end of the shell, a guide body is arranged inside the shell, a control device and a vacuum pump are arranged in the guide body, the control device is electrically connected with the vacuum pump, a ventilation cover is arranged at an air inlet at the front end of the vacuum pump, the front end of the ventilation cover corresponds to the hand drying port, and an air outlet is arranged at the rear end of the vacuum pump; the left side and the right side of the shell are connected with the isolation cover into a whole, the left side and the right side of the shell are respectively provided with a left air duct and a right air duct, heat sources are arranged in the left air duct and the right air duct, and the front ends of the left air duct and the right air duct are communicated with the hand drying opening.

As a further improvement of the invention, an indicator light is arranged on the upper part of the outer side of the hand drying opening at the front end of the shell, and the indicator light is electrically connected with the control device.

As a further improvement of the invention, the inside of the hand drying opening is surrounded by a water absorption plate.

As a further improvement of the invention, the left air duct and the right air duct form a circulating air duct, and the circulating air duct is connected with the isolation cover to form a semi-closed internal circulating channel, so that generated air flow is fully utilized.

As a further improvement of the invention, the trigger switch is a reflective infrared switch, the dense layout has quick response when a user stretches his hand, and the power is cut off quickly when the use is finished.

As a further improvement of the invention, the control device is formed by sequentially and electrically connecting a relay, a connecting lead and a power plug, the relay and a trigger switch form a control circuit, and the trigger switch responds to control the on-off of the relay so as to control the power switch of the whole circuit.

As a further improvement of the invention, the vacuum pump is a low-power mute vacuum pump, and the vacuum pump is connected with the guide body and the isolation cover, and sucks ambient air into the isolation cover to form negative pressure in the guide body.

As a further improvement of the invention, the heat source is a rapid heating device, such as: the heating lamp tube, the ultrasonic electric heating tube, the infrared heating tube and the like are positioned in the circulating air duct and work together with the vacuum pump to heat the gas passing through the circulating air duct.

As a further improvement of the invention, an ultraviolet lamp tube electrically connected with the control device is arranged in the circulating air duct, and the ultraviolet lamp tube and the vacuum pump work simultaneously to sterilize the gas passing through the circulating air duct.

(III) advantageous effects

Compared with the prior art, after the technical scheme is adopted, the invention has the beneficial effects that:

1. the invention solves the problem of low negative pressure air suction hand drying efficiency, and the circulating air duct solves the problem of poor hand surface blowing effect caused by the fact that air directly enters the vacuum pump along the isolation cover.

2. The invention solves the problems of large negative pressure air suction power and large noise possibly existing in the practical application of the negative pressure hand dryer.

3. The invention adopts a method of drying hands by using the negative pressure circulating air duct and combines the ultraviolet lamp tube, thereby effectively preventing the spread and diffusion of virus and bacteria and improving the safety of the environment and public appliances.

4. The invention can trigger at multiple angles and multiple postures by installing the plurality of trigger switches so as to start the hand dryer, and solves the problems of insensitive response and delayed power-off response of the existing hand dryer.

Drawings

FIG. 1 is a schematic perspective view of an embodiment of the present invention;

FIG. 2 is a top view of an embodiment provided by the present invention;

FIG. 3 is a side view of an embodiment provided by the present invention;

FIG. 4 is a circuit schematic of an embodiment provided by the present invention;

description of reference numerals:

1. a housing; 2. an isolation cover; 3. a trigger switch; 4. a guide body; 5. a heat source; 6. a control device; 7. A vacuum pump; 8. a left air duct; 9. an air outlet; 10. a right air duct; 11. a ventilation cover; 12. a water absorption plate; 13. An indicator light; 14. an ultraviolet lamp tube.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-4, an embodiment of the present invention is shown: a high-efficiency mute negative pressure hand dryer comprises a shell 1, an isolation cover 2, a trigger switch 3, a guide body 4, a heat source 5, a control device 6, a vacuum pump 7, a left air duct 8, an air outlet 9, a right air duct 10, a ventilation cover 11, a water absorption plate 12 and an indicator lamp 13, wherein the three trigger switches 3 are arranged at the inner bottom of the hand dryer at the front end of the shell 1, the trigger switches 3 are reflective infrared switches, the intensive layout is quick to respond when a user stretches his hand, and the intensive layout is quick to cut off the power when the use is finished; inside the dry hand mouth is enclosed there is water absorption plate 12, the outside upper portion of 1 front end dry hand mouth of casing is provided with pilot lamp 13, pilot lamp 13 is connected with controlling means 6 electricity, the inside of casing 1 is provided with guide 4, be provided with controlling means 6 and vacuum pump 7 in the guide 4, and controlling means 6 is connected with vacuum pump 7 electricity, controlling means 6 is connected by SSR-1D4840 solid state relay, connecting wire and power plug electricity in proper order and is formed, the relay forms control circuit with trigger switch 3, trigger switch 3 responds control relay break-make, and then control whole circuit switch. A ventilation cover 11 is arranged at the air inlet at the front end of the vacuum pump 7, the front end of the ventilation cover 11 corresponds to the hand drying port, and an exhaust outlet 9 is arranged at the rear end of the vacuum pump 7; the left side and the right side of the shell 1 are connected with the isolation cover 2 into a whole, the left side and the right side of the shell 1 are respectively provided with a left air duct 8 and a right air duct 10, the left air duct 8 and the right air duct 10 form a circulating air duct, the circulating air duct is connected with the isolation cover 2 to form a semi-closed internal circulating channel, generated air flow is fully utilized, and the front ends of the left air duct 8 and the right air duct 10 are communicated with a hand drying opening. The left air duct 8 and the right air duct 10 are both provided with a heat source 5, the heat source 5 is a rapid heating device, is positioned in the circulating air duct and works together with the vacuum pump 7 to heat the gas passing through the circulating air duct, an ultraviolet lamp tube 14 electrically connected with the control device is arranged in the circulating air duct, the ultraviolet lamp tube 14 works together with the vacuum pump 7 to sterilize the gas passing through the circulating air duct. .

In this embodiment, the vacuum pump 7 is a low-power silent vacuum pump, and the vacuum pump 7 is connected to the lead block 4 and the shield case 2, and sucks ambient air into the shield case 2 to form negative pressure in the lead block 4.

The working principle of the embodiment is as follows:

a negative pressure below ambient is created at the hand dryer, promoting air flow into the cage 2, while avoiding leakage of the internal circulation gas into the air. Most of gas in the vacuum pump 7 is discharged through the air outlet 9, and a small part of gas forms internal circulation airflow through the circulation air duct, and is heated and blown to the surface of hand skin through the heat source 5 in the left air duct 8 and the right air duct 10, so that the effect of quickly drying hands is achieved. The trigger switch 3 is connected with the control device 6 to control the working state, and the user stretches his hand to respond to the trigger switch 3 and performs on-off response control on the vacuum pump 7 and the heat source 5 through the control device 6.

Vacuum pump 7 inhales cage 2 with air on every side, forms the negative pressure in guide body 4, and 7 air outlets of vacuum pump and circulation wind channel are connected simultaneously, and the air current that cyclic utilization produced improves hand-drying efficiency, avoids the use of high-power vacuum pump, fan, and then noise abatement. The air inlet hole of the vacuum pump 7 is provided with a ventilation cover 11 to prevent fingers or external objects from being sucked into the vacuum pump 7, the negative pressure hand drying is high-efficiency and mute, and simultaneously, the ultraviolet lamp tube 14 in the circulating air duct can effectively prevent the propagation and the diffusion of viruses and bacteria.

In summary, the following steps: the invention solves the problems of low negative pressure hand drying efficiency, high noise, insensitive response, delayed power-off response and bacterial and virus transmission caused by the traditional hand dryer.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.