CN215128001U - Sterilizing dust collector - Google Patents

Abstract

The utility model relates to a disinfection dust collector. The utility model discloses a disinfection dust catcher include: a housing; the double-turbine fan ventilation device is arranged in the shell and is used for driving air to flow; a dust filter screen disposed within the housing for filtering particles in the air; the ultraviolet germicidal lamp is arranged in the shell and is used for sterilizing and disinfecting the air; the gyroscope sensor is used for detecting the direction of an air inlet of the disinfection dust collector; and the controller is respectively electrically connected with the ultraviolet germicidal lamp and the gyroscope sensor and controls the work of the ultraviolet germicidal lamp according to the measuring angle of the gyroscope sensor.

Description

Sterilizing dust collector

Technical Field

The utility model relates to a dust collecting equipment technical field especially relates to a disinfection dust catcher.

Background

Due to the rapid development of the society at present, air, dust and viruses are abused, people do not clean the dust in offices and homes and own lovers for a long time, and the secondary pollution and the spread of the environment are unconsciously caused, so that the portable vehicle-mounted dust collector appears on the market. However, when the existing portable vehicle-mounted dust collector finishes dust collection, the discharge only passes through a simple filtration, and secondary pollution of air can be caused.

SUMMERY OF THE UTILITY MODEL

Based on this, the utility model aims at providing a disinfection dust catcher, it has the filtration disinfection effect, avoids the secondary pollution of air, has the air purification effect.

A sanitizing vacuum cleaner, comprising: a housing; the double-turbine fan ventilation device is arranged in the shell and is used for driving air to flow; a dust filter screen disposed within the housing for filtering particles in the air; the ultraviolet germicidal lamp is arranged in the shell and is used for sterilizing and disinfecting the air; the gyroscope sensor is used for detecting the direction of an air inlet of the disinfection dust collector; and the controller is respectively electrically connected with the ultraviolet germicidal lamp and the gyroscope sensor and controls the work of the ultraviolet germicidal lamp according to the measuring angle of the gyroscope sensor.

Further, double turbofan ventilation unit includes shell, motor, first turbofan, second turbofan, the motor sets up in the shell, first turbofan, the second turbofan all is installed on the output shaft of motor.

Furthermore, the double-turbine fan ventilation device comprises a shell, a motor, a first turbine fan, a second turbine fan, a first bevel gear, a second bevel gear, a third bevel gear and a fourth bevel gear, the motor is arranged on the shell, the first turbine fan is arranged on an output shaft of the motor, the second turbine fan is rotationally arranged in the shell, the rotation axis of the second turbine fan is positioned on the same straight line with the rotation axis of the first turbine fan, the first bevel gear is arranged on the first turbine fan and rotates synchronously with the first turbine fan, the second bevel gear is rotatably arranged in the shell and is meshed with the first bevel gear, the third bevel gear is rotationally arranged in the shell and is meshed with the first bevel gear, the fourth bevel gear is arranged on the second turbine fan and rotates synchronously with the second turbine fan.

Further, the shell is cylindrical, an opening is formed in one end of the shell, an end cover is installed at the other end of the shell, and a plurality of through holes are formed in the end cover.

Further, a mounting frame is arranged in the shell, and a mounting hole is formed in the mounting frame.

Further, the motor is installed on the end cover, an output shaft of the motor is located in the shell, and the output shaft of the motor is inserted in the installation hole.

The bracket is arranged on the mounting rack and is positioned on one side of the mounting rack far away from the end cover; the second bevel gear is rotatably arranged on the bracket, and the third bevel gear is rotatably arranged on the bracket.

Further, the second turbine fan is located the support is close to one side of end cover, the second turbine fan has turbine fan axial region, turbine fan axial region rotates and sets up in the mounting hole.

Furthermore, the fourth bevel gear is fixedly arranged on one end face of the shaft part of the turbine fan, and the fourth bevel gear is positioned on one side of the bracket, which is far away from the end cover; the end face of the fourth bevel gear abuts against the bracket, and the other end face of the turbine fan shaft part abuts against the end face of the motor.

Furthermore, the dust filter screen and the ultraviolet germicidal lamp are arranged on the air inlet side of the double-turbine fan ventilation device, and the dust filter screen is positioned between the double-turbine fan ventilation device and the ultraviolet germicidal lamp; the disinfection dust collector also comprises a photocatalyst which is arranged on the air outlet side of the double-turbine fan ventilation device; the disinfection dust collector also comprises an air duct body arranged in the shell, the double-turbine fan ventilation device is arranged in the air duct body, the dust filter screen and the ultraviolet germicidal lamp are arranged at one end of the air duct body, and the photocatalyst is arranged at the other end of the air duct body; the front end of the shell is detachably provided with a front cover, and the front cover is used for detachably installing a suction head; a rear cover is arranged at the rear end of the shell, and an air outlet hole is formed in the rear cover; an air inlet is formed in one end of the air duct body and communicated with the suction head; the other end of the air duct body is provided with an air outlet which is communicated with the air outlet hole; the electric vehicle handle further comprises a handle, a key, a position detection module and a controller, wherein the handle is arranged on the shell in a sliding mode, the key is arranged on the shell or the handle, the position detection module is used for detecting the position of the handle, the controller is respectively electrically connected with the motor, the key and the position detection module, and the controller controls the motor to work according to a received key signal and a detection signal of the position detection module; the handle is arranged in the mounting groove in a sliding manner, sliding blocks are arranged on two sides of the handle, and the sliding blocks are arranged in the sliding grooves in a sliding manner; the guide direction of the sliding groove is parallel to the direction from the front cover to the rear cover; the position detection module is one or more of a pyroelectric infrared sensor, a photoelectric switch, an ultrasonic sensor, a proximity switch and a magnetic induction sensor.

For a better understanding and an implementation, the present invention is described in detail below with reference to the accompanying drawings.

Drawings

FIG. 1 is an assembled view of the vacuum cleaner;

FIG. 2 is an exploded view of the vacuum cleaner;

FIG. 3 is an electrical control diagram of the vacuum cleaner;

FIG. 4 is an exploded view of a twin turbofan ventilation device according to the present embodiment;

FIG. 5 is an assembled schematic view of the twin turbofan ventilation unit of FIG. 4;

FIG. 6 is a schematic structural view of the housing of FIG. 4;

FIG. 7 is a schematic structural view of another twin turbofan ventilation apparatus provided in this embodiment;

reference numerals:

1. a twin turbofan ventilation device; 11. a housing; 111. an end cap; 112. a through hole; 113. a mounting frame; 114. mounting holes; 12. a motor; 121. an output shaft; 13. a first turbine fan; 14. a first bevel gear; 15. a support; 16. a second bevel gear; 17. A third bevel gear; 18. a second turbo fan; 181. a turbine fan shaft portion; 19. a fourth bevel gear; 2. a housing; 21. a front cover; 211. A suction head; 22. a rear cover; 221. an air outlet; 23. mounting grooves; 231. a chute; 3. an air duct body; 31. an air inlet; 32. An air outlet; 4. a dust filter screen; 5. an ultraviolet germicidal lamp; 6. a photocatalyst; 7. a handle; 71. pressing a key; 72. a slider; 8. a position detection module; 9. a controller; 10. a gyroscope sensor.

Detailed Description

A disinfection dust collector, see figures 1 to 3, comprises a shell 2, an air duct body 3, a double-turbine fan ventilation device 1, a dust filter screen 4, an ultraviolet germicidal lamp 5 and a photocatalyst 6. Wherein, a front cover 21 is detachably arranged at the front end of the shell 2, and the front cover 21 is used for detachably arranging the upper suction head 211; the rear end of the housing 2 is provided with a rear cover 22, and the rear cover 22 is provided with a plurality of strip-shaped air outlets 221. The air duct body 3 is installed in the housing 2, an air inlet 31 is arranged at one end of the air duct body 3, and the air inlet 31 is communicated with the suction head 211; an air outlet 32 is provided at the other end of the air duct body 3, and the air outlet 32 is communicated with an air outlet hole 221 of the rear cover 22. The twin turbo fan ventilator 1 is installed in the air duct body 3, and the first turbo fan 13 and the second turbo fan 18 of the twin turbo fan ventilator 1 are sequentially disposed in the air duct body 3 in a direction from the front cover 21 to the rear cover 22. The dust filter screen 4 is arranged in the shell 2, the dust filter screen 4 is positioned between the front cover 21 and the air duct body 3, and the dust filter screen 4 is used for filtering dust in air. The ultraviolet germicidal lamp 5 is arranged in the housing 2, the ultraviolet germicidal lamp 5 is positioned between the front cover 21 and the dust filter screen 4, and the ultraviolet germicidal lamp 5 is used for ultraviolet sterilizing air. The photocatalyst 6 is arranged in the shell 2, the photocatalyst 6 is positioned between the air duct body 3 and the rear cover 22, the ultraviolet rays of the ultraviolet sterilizing lamp 5 are reflected to the photocatalyst 6 through the shell 2 or the air duct body 3 or the double-turbine fan ventilation device 1, or the external visible light is emitted to the photocatalyst 6 through the air outlet 221 of the rear cover 22, under the action of the ultraviolet rays or the visible light, the photocatalyst 6 generates a strong catalytic degradation function, not only can effectively degrade toxic and harmful gases in the air, but also can effectively kill various bacteria, can decompose and harmlessly treat toxins released by the bacteria or fungi, and simultaneously has the functions of removing formaldehyde, deodorizing, resisting pollution, purifying the air and the like.

The working process of the dust collector is as follows: firstly, starting a ventilation device, and allowing outside air carrying particles such as dust to enter the shell 2 from the suction head 211; then, the dust particles and the air are separated by the dust filter screen 4, the dust is retained in the space formed by the casing 2, the front cover 21 and the dust filter screen 4, and the air returns to the outside from the air outlet 221 of the rear cover 22 after passing through the dust filter screen 4, the air duct body 3 and the photocatalyst 6 in sequence.

An implementation of a twin turbofan ventilation device 1 is provided below. Referring to fig. 4 to 6, the twin turbofan ventilation apparatus 1 includes a housing 11, a motor 12, a first turbofan 13, a first bevel gear 14, a bracket 15, a second bevel gear 16, a third bevel gear 17, a second turbofan 18, and a fourth bevel gear 19. The shell 11 is cylindrical, an opening is formed in one end of the shell 11, an end cover 111 is installed at the other end of the shell 11, and a plurality of through holes 112 are formed in the end cover 111, so that the two ends of the shell 11 can be communicated with the outside; a mounting bracket 113 is provided in the housing 11, and a mounting hole 114 is provided in the mounting bracket 113. The motor 12 is mounted on the end cover 111, the output shaft 121 of the motor 12 is located in the housing 11, and the output shaft 121 of the motor 12 is inserted into the mounting hole 114. The first turbo fan 13 is fixedly mounted on an output shaft 121 of the motor 12, and the first turbo fan 13 is driven to rotate by the motor 12. The first bevel gear 14 is fixedly installed on the first turbine fan 13, the axis of the first bevel gear 14 is located on the same straight line with the rotation axis of the first turbine fan 13, and the first bevel gear 14 and the first turbine fan 13 rotate synchronously and coaxially. The bracket 15 is fixedly mounted on the mounting bracket 113, and the bracket 15 is located on a side of the mounting bracket 113 far away from the end cover 111. The second bevel gear 16 is rotatably arranged on the bracket 15, and the second bevel gear 16 is meshed with the first bevel gear 14. The third bevel gear 17 is rotatably arranged on the bracket 15, the third bevel gear 17 is meshed with the first bevel gear 14, and the third bevel gear 17 and the second bevel gear 16 are symmetrically distributed on the bracket 15, namely the third bevel gear 17 and the second bevel gear 16 are symmetrically distributed about the axis of the first bevel gear 14. The second turbine fan 18 is rotatably disposed on the housing 11, the rotation axis of the second turbine fan 18 is aligned with the rotation axis of the first turbine fan 13, in the present embodiment, the second turbine fan 18 is disposed on one side of the bracket 15 close to the end cover 111, the second turbine fan 18 has a turbine fan shaft portion 181, the turbine fan shaft portion 181 is mounted on the mounting hole 114 of the mounting bracket 113 through a bearing, so that the second turbine fan 18 can rotate on the mounting bracket 113, the rotation axis of the turbine fan shaft portion 181 is aligned with the rotation axis of the first turbine fan 13, and the turbine fan shaft portion 181 sequentially passes through the mounting bracket 113 and the bracket 15. The fourth bevel gear 19 is fixedly installed on the second turbofan 18, an axis of the fourth bevel gear 19 is located on the same straight line with a rotation axis of the second turbofan 18, the fourth bevel gear 19 rotates synchronously and coaxially with the second turbofan 18, the fourth bevel gear 19 is engaged with the second bevel gear 16, the fourth bevel gear 19 is engaged with the third bevel gear 17, in this embodiment, the fourth bevel gear 19 is fixedly installed on one end face of the turbofan shaft portion 181, the fourth bevel gear 19 is located on one side of the bracket 15 far away from the end cover 111, the end face of the fourth bevel gear 19 abuts against the bracket 15, and the other end face of the turbofan shaft portion 181 abuts against an end face of the motor 12, so that the second turbofan 18 is positioned.

Operation of the twin turbofan ventilation device 1: firstly, a motor 12 is utilized to drive a first turbine fan 13 to rotate clockwise, and the first turbine fan 13 synchronously drives a first bevel gear 14 to rotate clockwise; then, the first bevel gear 14 is meshed with the second bevel gear 16 and the third bevel gear 17 at the same time, so that the first bevel gear 14 drives the second bevel gear 16 and the third bevel gear 17 to rotate at the same time; then, the fourth bevel gear 19 is meshed with the second bevel gear 16 and the third bevel gear 17 simultaneously, so that the second bevel gear 16 and the third bevel gear 17 drive the fourth bevel gear 19 to rotate anticlockwise simultaneously, two-stage compression is formed to increase wind pressure and wind volume, and cost and power are reduced.

In addition, the utility model discloses still provide another kind of double turbofan ventilation unit 1, see fig. 7, double turbofan ventilation unit 1 includes shell 11, motor 12, first turbofan 13, second turbofan 18, and wherein, shell 11 sets up in wind channel body 3, and motor 12 sets up in shell 11, and first turbofan 13, the equal fixed mounting of second turbofan 18 are on the output shaft 121 of motor 12, along the direction of protecgulum 21 to back lid 22, and first turbofan 13, second turbofan 18 set gradually in shell 11.

As an improvement of the above-described vacuum cleaner, there is a fear that a child starts the vacuum cleaner by mistake, and therefore, the start of the twin turbofan ventilation apparatus 1 needs to detect whether or not the position of the handle 7 described below satisfies a preset position in addition to the trigger button 71. Specifically, referring to fig. 1 to 3, a mounting groove 23 is provided on an outer circumferential wall of the housing 2, and a sliding groove 231 is provided on both side walls of the mounting groove 23, respectively, and in the present embodiment, a guiding direction of the sliding groove 231 is parallel to a direction from the front cover 21 to the rear cover 22. The vacuum cleaner also comprises a handle 7, the handle 7 is arranged on the shell 2 in a sliding way, in the embodiment, the key 71 is arranged on the handle 7, the handle 7 is arranged in the mounting groove 23, and the handle 7 has two positions in the mounting groove 23, wherein the two positions are a working position and a stopping position respectively; sliders 72 are provided on both sides of the handle 7, and the sliders 72 are slidably provided in the slide grooves 231 so that the handle 7 can move forward and backward on the housing 2. The dust collector also comprises a position detection module 8 and a controller 9, wherein the position detection module 8 is arranged on the shell 2 or the handle 7, and the position detection module 8 is used for detecting the position of the handle 7. The controller 9 is electrically connected with the motor 12, the key 71 and the position detection module 8 of the double-turbofan ventilation device 1, the controller 9 receives a signal from the key 71 and a signal from the position detection module 8, and the controller 9 judges whether to start the motor 12 to work according to the two signals.

When the dust collector needs to be used, firstly, the handle 7 is driven to move in the direction of sliding away from the mounting groove 23, and after the position detection module 8 detects that the handle 7 moves to the working position, the position detection module 8 sends a starting signal to the controller 9; then, a key 71 on the handle 7 is triggered, and the key 71 sends a starting signal to the controller 9; finally, the controller 9 receives the two starting signals, and the controller 9 starts the motor 12 to work.

When the dust collector is not needed to be used, the driving handle 7 can be selected to move towards the direction of sliding into the mounting groove 23, after the position detection module 8 detects that the handle 7 moves to the stop position, the position detection module 8 sends a stop signal to the controller 9, and the controller 9 stops the motor 12 from working; or the button 71 on the handle 7 can be optionally activated again, and the button 71 sends a stop signal to the controller 9, and the controller 9 stops the motor 12.

More specifically, the position detection module 8 may be a pyroelectric infrared sensor, a photoelectric switch, an ultrasonic sensor, a proximity switch, a magnetic induction sensor, or the like. If adopt pyroelectric infrared sensor, then can set up pyroelectric infrared sensor on the motion trail of handle 7, after handle 7 removed to the operating position, expose pyroelectric infrared sensor, pyroelectric infrared sensor can sense whether there is the human body this moment to judge the position of handle 7. If the photoelectric switch, the ultrasonic sensor, or the proximity switch is used, the sensing range of the photoelectric switch, the ultrasonic sensor, or the proximity switch may be set on the movement locus of the handle 7, so that the movement of the handle 7 changes the sensing signal of the photoelectric switch, the ultrasonic sensor, or the proximity switch, thereby determining the position of the handle 7. If a magnetic induction sensor is used, the magnetic induction sensor may be provided on one of the handle 7 and the housing 2, and the magnetic member may be provided on the other of the handle 7 and the housing 2, and the position of the handle 7 may be determined by whether the magnetic induction sensor senses the magnetism of the magnetic member.

As an improvement of the above-mentioned vacuum cleaner, in order to prevent the ultraviolet rays of the ultraviolet germicidal lamp 5 from transmitting through the air inlet of the vacuum cleaner and emitting to the eyes of the user, referring to fig. 1 to 3, the vacuum cleaner further comprises a gyro sensor 10, the gyro sensor 10 is disposed on the housing 2 or the front cover 21 or the rear cover 22 or the handle 7, and the gyro sensor 10 is used for detecting the orientation of the air inlet of the vacuum cleaner. The controller 9 is also electrically connected to the ultraviolet germicidal lamp 5 and the gyro sensor 10. The gyroscope sensor 10 detects the angle of the air inlet of the dust collector, and the controller 9 judges whether the preset angle range is met according to the detected angle, so that the work of the ultraviolet germicidal lamp 5 is controlled. If the detected angle does not meet the preset angle range, the controller 9 turns off the ultraviolet germicidal lamp 5; if the detected angle satisfies a predetermined angle range and the button 71 is activated, the controller 9 turns on the sterilamp 5.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention.

Claims (10)

1. A sanitizing vacuum cleaner, comprising:

a housing (2);

a twin turbofan ventilation device (1) disposed within the housing (2) for entraining air flow;

a dust filter screen (4) disposed within the housing (2) for filtering particles in the air;

an ultraviolet germicidal lamp (5) arranged in the shell (2) and used for sterilizing and disinfecting the air;

a gyroscope sensor (10) arranged on the shell (2) and used for detecting the direction of an air inlet of the disinfection dust collector;

and the controller (9) is respectively and electrically connected with the ultraviolet germicidal lamp (5) and the gyroscope sensor (10), and controls the work of the ultraviolet germicidal lamp (5) according to the measuring angle of the gyroscope sensor (10).

2. The sanitizing cleaner of claim 1, wherein: double turbofan ventilation unit (1) includes shell (11), motor (12), first turbofan (13), second turbofan (18), motor (12) set up in shell (11), first turbofan (13), second turbofan (18) all install on output shaft (121) of motor (12).

3. The sanitizing cleaner of claim 1, wherein: the double-turbine fan ventilation device (1) comprises a shell (11), a motor (12), a first turbine fan (13), a second turbine fan (18), a first bevel gear (14), a second bevel gear (16), a third bevel gear (17) and a fourth bevel gear (19), wherein the motor (12) is installed on the shell (11), the first turbine fan (13) is arranged on an output shaft (121) of the motor (12), the second turbine fan (18) is rotationally arranged in the shell (11), the rotation axis of the second turbine fan (18) and the rotation axis of the first turbine fan (13) are positioned on the same straight line, the first bevel gear (14) is arranged on the first turbine fan (13) and synchronously rotates with the first turbine fan (13), the second bevel gear (16) is rotationally arranged in the shell (11), and the second bevel gear (16) and the first bevel gear (14) are meshed with each other, third bevel gear (17) rotate the setting in shell (11), third bevel gear (17) with first bevel gear (14) intermeshing, fourth bevel gear (19) set up on second turbofan (18) and with second turbofan (18) synchronous revolution.

4. The sanitizing cleaner of claim 3, wherein: the shell (11) is cylindrical, an opening at one end of the shell (11) is opened, an end cover (111) is installed at the other end of the shell (11), and a plurality of through holes (112) are formed in the end cover (111).

5. The sanitizing cleaner of claim 4, wherein: a mounting rack (113) is arranged in the shell (11), and a mounting hole (114) is formed in the mounting rack (113).

6. The sanitizing cleaner of claim 5, wherein: the motor (12) is installed on the end cover (111), an output shaft (121) of the motor (12) is located in the shell (11), and the output shaft (121) of the motor (12) is inserted in the installation hole (114).

7. The sanitizing cleaner of claim 5, wherein: the bracket (15) is mounted on the mounting rack (113), and the bracket (15) is positioned on one side, away from the end cover (111), of the mounting rack (113); the second bevel gear (16) is rotationally arranged on the bracket (15), and the third bevel gear (17) is rotationally arranged on the bracket (15).

8. The sanitizing cleaner of claim 7, wherein: the second turbofan (18) is located on one side, close to the end cover (111), of the support (15), the second turbofan (18) is provided with a turbofan shaft portion (181), and the turbofan shaft portion (181) is rotatably arranged in the mounting hole (114).

9. The sanitizing cleaner of claim 8, wherein: the fourth bevel gear (19) is fixedly arranged on one end face of the shaft part (181) of the turbofan, and the fourth bevel gear (19) is positioned on one side, away from the end cover (111), of the bracket (15); the end surface of the fourth bevel gear (19) abuts against the bracket (15), and the other end surface of the turbofan shaft part (181) abuts against the end surface of the motor (12).

10. The sanitizing cleaner of claim 2, wherein:

the dust filter screen (4) and the ultraviolet germicidal lamp (5) are arranged on the air inlet side of the double-turbine fan ventilation device (1), and the dust filter screen (4) is located between the double-turbine fan ventilation device (1) and the ultraviolet germicidal lamp (5);

the disinfection dust collector also comprises a photocatalyst (6), and the photocatalyst (6) is arranged on the air outlet side of the double-turbofan ventilation device (1);

the disinfection dust collector also comprises an air duct body (3) arranged in the shell (2), the double-turbofan ventilation device (1) is arranged in the air duct body (3), the dust filter screen (4) and the ultraviolet germicidal lamp (5) are arranged at one end of the air duct body (3), and the photocatalyst (6) is arranged at the other end of the air duct body (3);

a front cover (21) is detachably arranged at the front end of the shell (2), and the front cover (21) is used for detachably arranging a suction head (211); a rear cover (22) is arranged at the rear end of the shell (2), and an air outlet hole (221) is formed in the rear cover (22);

an air inlet (31) is formed in one end of the air duct body (3), and the air inlet (31) is communicated with the suction head (211); an air outlet (32) is formed in the other end of the air duct body (3), and the air outlet (32) is communicated with the air outlet hole (221);

the electric bicycle is characterized by further comprising a handle (7), a key (71), a position detection module (8) and a controller (9), wherein the handle (7) is arranged on the shell (2) in a sliding mode, the key (71) is arranged on the shell (2) or the handle (7), the position detection module (8) is used for detecting the position of the handle (7), the controller (9) is electrically connected with the motor (12), the key (71) and the position detection module (8) respectively, and the controller (9) controls the motor (12) to work according to received signals of the key (71) and the position detection module (8);

an installation groove (23) is formed in the peripheral wall of the shell (2), two sliding grooves (231) are formed in two side walls of the installation groove (23), the handle (7) is arranged in the installation groove (23) in a sliding mode, sliding blocks (72) are arranged on two sides of the handle (7), and the sliding blocks (72) are arranged in the sliding grooves (231) in a sliding mode;

the guiding direction of the sliding chute (231) and the direction from the front cover (21) to the rear cover (22) are parallel to each other;

the position detection module (8) is one or more of a pyroelectric infrared sensor, a photoelectric switch, an ultrasonic sensor, a proximity switch and a magnetic induction sensor.

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