CN210112725U

CN210112725U - Detecting instrument

Info

Publication number: CN210112725U
Application number: CN201920230588.8U
Authority: CN
Inventors: 刘文平; 赵优
Original assignee: Shenzhen Changsite Technology Co ltd
Current assignee: Shenzhen Changsite Technology Co ltd
Priority date: 2019-02-20
Filing date: 2019-02-20
Publication date: 2020-02-25
Anticipated expiration: 2029-02-20

Abstract

The utility model relates to the technical field of detecting instruments, in particular to a detector, which comprises a shell, a detecting head and a visual circuit, wherein the detecting head and the visual circuit are connected with one end of the shell; an opening communicated with the accommodating cavity is formed in the detection head, and an air hole communicated with the accommodating cavity is formed in one end of the shell; a negative pressure generating device is arranged in the shell and is communicated with the accommodating cavity through an air hole; one end of the shell is connected with a camera which is positioned in the accommodating cavity and shoots a scene at the opening; the visual circuit comprises a micro control unit and a wireless module, wherein the micro control unit is electrically connected with the camera and the wireless module respectively; the micro control unit collects video signals shot by the camera and forwards the video signals to the wireless module, so that the video signals are sent by the wireless module, the foreign matter removing process and effect of the detector are visible, and pain or pathological changes caused by blind operation are avoided.

Description

Detecting instrument

Technical Field

The utility model relates to a detecting instrument technical field, concretely relates to detector.

Background

There are some foreign matters to be removed, such as blackheads, pimples, greasy dirt, ear canal secretions or nasal secretions, etc. on the human body.

The above-mentioned foreign matter is generally removed by hand, for example, by applying a tear-off mask or removing blackheads with a needle, removing secretions from the ear canal by hand with an earpick, or removing secretions from the nasal cavity with a cotton swab.

The mode of manually removing the foreign matters is adopted, so that the operation is complicated and inconvenient. And the process of removing the foreign matters is invisible and can only be operated blindly. When the operation is improper (such as blind digging of ear canal secretion), pain can be brought to the human body, and even further lesion can be brought.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims at providing a get rid of visual detector of process of foreign matter.

In order to realize the technical problem, the utility model provides a detector, which comprises a shell, a detection head connected with one end of the shell and a visual circuit,

wherein a sealed accommodating cavity is formed between the detection head and the shell; the detection head is provided with an opening communicated with the accommodating cavity, and one end of the shell is provided with an air hole communicated with the accommodating cavity; a negative pressure generating device is arranged in the shell and is communicated with the accommodating cavity through the air hole; the negative pressure generating device generates negative pressure, so that the containing cavity is internally provided with negative pressure, and the opening generates suction;

one end of the shell is connected with a camera which is positioned in the accommodating cavity and shoots a scene at the opening;

the visual circuit comprises a micro control unit and a wireless module, and the micro control unit is electrically connected with the camera and the wireless module respectively; the micro control unit collects the video signal shot by the camera and forwards the video signal to the wireless module so as to send the video signal through the wireless signal of the wireless module.

The utility model provides a detector is through setting up the camera in acceping the intracavity, and the camera is used for shooing the scene of opening part, and the rethread sets up wireless module to the video that will shoot is passed through radio signal and is sent away, makes the process and the effect that the foreign matter was got rid of to the detector visual, avoids the pain or the pathological change that blind operation brought.

Further, the micro-control unit also comprises a power supply, and the micro-control unit is connected with the power supply; the negative pressure generating device is an air pump, and the air pump comprises a motor;

the detector also comprises a protection circuit, wherein the protection circuit comprises a first voltage stabilizing circuit, a first control unit and a first electronic switch; two ends of the first voltage stabilizing circuit are respectively connected with the power supply and the first end of the first electronic switch; the first control unit is connected with the second end of the first electronic switch; the third end of the first electronic switch is connected with the motor;

the first control unit outputs pulse width modulation signals with different duty ratios.

Furthermore, the first electronic switch is a P-type MOS field effect transistor, a first end of the first electronic switch corresponds to a source electrode of the P-type MOS field effect transistor, a second end of the first electronic switch corresponds to a gate electrode of the P-type MOS field effect transistor, and a third end of the first electronic switch corresponds to a drain electrode of the P-type MOS field effect transistor.

Further, a diode is also connected in series between the first electronic switch and the motor, an anode of the diode is electrically connected with a third end of the first electronic switch, and a cathode of the diode is electrically connected with the motor.

Further, the first control unit comprises a signal generator, a signal receiver, a controller, a delayer and an accelerator, wherein the signal generator outputs a pulse width modulation signal; the signal receiver receives a suction force increasing signal and then transmits an instruction to the controller, the controller controls the duty ratio of a pulse width modulation signal output by the signal generator to increase, and the delayer enables the duty ratio of the pulse width modulation signal to slowly increase;

the signal receiver receives the suction force reduction signal and then transmits an instruction to the controller, the controller controls the duty ratio of the pulse width modulation signal output by the signal generator to be reduced, and the accelerator enables the duty ratio of the pulse width modulation signal to be rapidly reduced.

Furthermore, the wireless module comprises a second control unit and an antenna, and the second control unit is respectively connected with the micro control unit and the antenna; the antenna is a planar inverted F antenna;

the detector further comprises a circuit board, the circuit board is arranged in the shell, and the micro control unit, the second control unit and the antenna are all arranged on the circuit board.

Furthermore, the visual circuit also comprises a universal serial bus interface, the camera is connected with the serial bus interface, and the serial bus interface is connected with the micro control unit through a differential signal circuit.

Furthermore, at least one lighting light-emitting diode is arranged in the accommodating cavity; the detector also comprises a second voltage stabilizing circuit, a voltage reducing circuit and a second electronic switch; two ends of the second voltage stabilizing circuit are respectively connected with the power supply and the voltage reducing circuit; the voltage reduction circuit is connected with the first end of the second electronic switch; the first control unit is connected with the second end of the second electronic switch, and the third end of the second electronic switch is respectively connected with the anode of each lighting light-emitting diode.

Furthermore, the second electronic switch is a P-type MOS field effect transistor, a first end of the second electronic switch corresponds to a source electrode of the P-type MOS field effect transistor, a second end of the second electronic switch corresponds to a gate electrode of the P-type MOS field effect transistor, and a third end of the second electronic switch corresponds to a drain electrode of the P-type MOS field effect transistor.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a perspective view of a detector provided in an embodiment of the present invention;

fig. 2 is a circuit diagram of a camera, a visual circuit, a power supply and a terminal connection provided by the embodiment of the present invention;

fig. 3 is an exploded view of a detector provided in an embodiment of the present invention;

FIG. 4 is a block diagram of a portion of the housing shown in FIG. 3;

FIG. 5 is an assembled view of a portion of the housing shown in FIG. 3 and a camera head;

fig. 6 is a circuit diagram of the protection circuit, power supply and motor connection provided by the present invention;

FIG. 7 is a schematic diagram of a first control unit of the protection circuit shown in FIG. 6;

fig. 8 is a circuit diagram of a brightness adjusting circuit according to an embodiment of the present invention;

wherein the correspondence between the reference numbers and the names of the components in fig. 1 to 8 is:

1. the detection device comprises a shell, 2, a detection head, 3, a visual circuit, 4, an opening, 5, an air hole, 6, a camera, 7, a wireless module, 8, a terminal, 9, a power supply, 10, an air pump, 11, a motor, 12, a protection circuit, 13, a first voltage stabilizing circuit, 14, an antenna, 15, a serial bus interface, 16, a circuit board, 17, a signal generator, 18, a second voltage stabilizing circuit, 19, a voltage reducing circuit, 20, a signal receiver, 21, a controller, 22, a delayer, 23, an accelerator, an MCU, a micro control unit, Q1, a first electronic switch, U1, a first control unit, D1, a diode, U2, a second control unit, an LED, a lighting light-emitting diode, Q2 and a second electronic switch.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more clearly understood, the present invention will be described in further detail with reference to the accompanying drawings and detailed description. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

Referring to fig. 1 and 2, an embodiment of a detector provided by the present invention includes a housing 1, a detection head 2 connected to one end of the housing 1, and a visible circuit 3, wherein a sealed accommodating cavity is formed between the detection head 2 and the housing 1.

Referring to fig. 3 and 4, the detecting head 2 is provided with an opening 4 communicating with the accommodating cavity, and one end of the housing 1 is provided with an air hole 5 communicating with the accommodating cavity. A negative pressure generating device is arranged in the shell 1 and is connected with the accommodating cavity through an air hole 5. The negative pressure generating device generates negative pressure, so that the containing cavity is internally provided with negative pressure, and the opening 4 generates suction force, thereby sucking and removing foreign matters.

The detection head 2 can be a suction head, an otoscope or a rhinoscope. When the detection head 2 is a suction head for sucking blackheads, pimples, or the like, the opening 4 is for contacting the skin, and the sucked blackheads, pimples, or the like are attached to the edge of the opening 4. Suction heads with different sizes and shapes of openings 4 can be designed according to the requirements of suction force and use position. For example: the opening 4 is a large circular hole or a small circular hole, or the opening 4 is an oval shaped nozzle, etc., and is not limited herein.

The opening 4 can be additionally provided with a microcrystalline grinding head to play a role in removing cutin, preventing pore blockage and improving skin.

When the detection head 2 is an otoscope, it is inserted into the ear canal to observe the internal structure of the ear canal. The negative pressure generating device is started to work, so that the detector generates suction force, and secretion or foreign matters in the auditory canal can be adsorbed. Specifically, the front end of the ear lens is shaped to correspond to the ear canal so that the front end of the ear lens can be inserted into the ear canal.

When the detection head 2 is a nasal lens, the nasal lens is inserted into the nasal cavity to observe and detect the nasal cavity. The negative pressure generating device is started to work, so that the detector generates suction, and secretion or foreign matters adsorbed in the nasal cavity can be cleaned. In particular, the shape of the front end of the nasal lens corresponds to the nostril, so that the front end of the nasal lens can be inserted into the nasal cavity.

Referring to fig. 5, one end of the housing 1 is connected to a camera 6, the camera 6 is located in the accommodating cavity, and the camera 6 shoots a scene at the opening 4.

Referring to fig. 2, the visible circuit 3 includes a micro control unit MCU (micro Controller unit) and a wireless module 7, and the micro control unit MCU is electrically connected to the camera 6 and the wireless module 7, respectively. The video signal that camera 6 was shot is gathered to little the control unit MCU to forward wireless module 7, with the wireless signal transmission video signal who passes through wireless module 7 to terminal 8, the user watches the process and the effect of getting rid of the foreign matter through terminal 8.

In this embodiment, the wireless signal transmitted by the wireless module 7 is a wireless WI-FI signal. In other embodiments, the wireless signal transmitted by the wireless module 7 is a wireless network signal (e.g., 3G, 4G, or GPRS), or bluetooth, and is not limited herein.

The terminal 8 may be a mobile intelligent terminal 8, such as a mobile phone or a tablet computer. The terminal 8 may also be a display screen.

The detector also comprises a power supply 9, the micro control unit MCU is connected with the power supply 9, and the power supply 9 is used for supplying power to the micro control unit MCU so as to enable the micro control unit MCU to work.

In the present embodiment, the negative pressure generating device is a suction pump 10, and the suction pump 10 includes a motor 11.

Referring to fig. 6, the detecting apparatus further includes a protection circuit 12, wherein the protection circuit 12 includes a first voltage regulator circuit 13, a first control unit U1 and a first electronic switch Q1. Two ends of the first voltage regulating circuit 13 are respectively connected with the power supply 9 and a first end of the first electronic switch Q1, and the first control unit U1 is connected with a second end of the first electronic switch Q1. The third terminal of the first electronic switch Q1 is connected to the motor 11.

The first control unit U1 outputs pwm signals with different duty ratios to adjust the output voltage of the third terminal of the first electronic switch Q1, so that the voltages supplied to the motor 11 are different, and the rotation speeds of the motor 11 are different, so that the detector can obtain the suction force of different gears, and the user can select the suction force of the corresponding gear according to his own condition.

In this embodiment, the first electronic switch Q1 is a P-type MOS field effect transistor, the first terminal of the first electronic switch Q1 is a source of the P-type MOS field effect transistor, the second terminal of the first electronic switch Q1 is a gate of the P-type MOS field effect transistor, and the third terminal of the first electronic switch Q1 is a drain of the P-type MOS field effect transistor.

The first voltage stabilizing circuit 13 stabilizes the voltage output from the power supply 9 so that the rotation speed of the motor 11 at the corresponding suction gear position is constant. The capacity attenuation caused by long service time of the power supply 9 is avoided, and further the rotating speed of the motor 11 is not constant, so that the suction force on the corresponding suction gear is not constant, and the user is uncomfortable.

Referring to fig. 7, the first control unit U1 includes a signal generator 17, a signal receiver 20, a controller 21, a delayer 22 and an accelerator 23, wherein the signal generator 17 outputs a pulse width modulation signal. The signal receiver 20 receives the suction force increasing signal and then transmits an instruction to the controller 21, the controller 21 controls the duty ratio of the pulse width modulation signal output by the signal generator 17 to increase, and the delayer 22 enables the duty ratio of the pulse width modulation signal to slowly increase, so that the suction force of the detector is slowly increased when being increased, the adaptive process of the suction force increase of a user is achieved, and the use feeling is more comfortable.

Specifically, the suction force increasing signal may be generated by various manners such as key control or sound control, which is not limited herein.

The signal receiver 20 receives the suction force reduction signal and then transmits an instruction to the controller 21, the controller 21 controls the duty ratio of the pulse width modulation signal output by the signal generator 17 to be reduced, and the accelerator 23 enables the duty ratio of the pulse width modulation signal to be rapidly reduced, so that the suction force of the detector is rapidly reduced, and the suction force can be rapidly reduced when a user feels that the suction force is too large and uncomfortable, and discomfort is rapidly reduced.

Specifically, the suction force reduction signal may be generated by various methods such as key control or sound control, which is not limited herein.

A diode D1 is also connected in series between the first electronic switch Q1 and the motor 11, the anode of the diode D1 is electrically connected with the third end of the first electronic switch Q1, and the cathode of the diode D1 is electrically connected with the motor 11, so that reverse short circuit caused by damage of the motor 11 is prevented, and the safety of the detector is ensured.

The wireless module 7 comprises a second control unit U2 and an antenna 14, and the second control unit U2 is respectively connected with the MCU and the antenna 14. In the present embodiment, the antenna 14 is a planar inverted F antenna.

The detector also comprises a circuit board 16, the circuit board 16 is arranged in the shell 1, the micro control unit MCU, the second control unit U2 and the antenna 14 are all arranged on the circuit board 16, and the planar inverted-F antenna is attached to the circuit board 16, so that the occupied space is small. Compared with an external antenna, the antenna is not easy to damage.

Referring back to fig. 2, the video circuit 3 further includes a Universal Serial Bus (USB) interface 15, the camera 6 is connected to the USB interface 15, and the USB interface 15 is connected to the MCU through a differential signal circuit, so as to ensure the stability of the acquired video signal and prevent the power supply 9 from interfering with the acquisition of the video signal.

Specifically, the USB interface includes a first differential signal line and a second differential signal line, both of which are disposed on the circuit board 16, and both of which are used to transmit digital signals.

Further, when wiring is performed on the circuit board 16, the first differential signal line and the second differential signal line are made shorter to shorten the wiring distance; the first differential signal line and the second differential signal line are symmetrically and parallelly wired, so that the two lines can be tightly coupled, the wiring at 90 degrees is avoided, and the arc or 45 degrees are both good wiring modes; in order to reduce crosstalk, if space allows, the distances between the other signal networks and the ground from the first differential signal line and the second differential signal line are controlled, and the too close distance between the ground and the first differential signal line and the second differential signal line affects the impedance of the differential signal lines.

Referring to fig. 8, at least one light emitting diode LED is disposed in the accommodating cavity. The detector also comprises a second voltage stabilizing circuit 18, a voltage reducing circuit 19 and a second electronic switch Q2. Both ends of the second voltage stabilizing circuit 18 are connected to the power supply 9 and the voltage reducing circuit 19, respectively. The voltage reduction circuit 19 is connected to a first terminal of a second electronic switch Q2, the first control unit U1 is connected to a second terminal of the second electronic switch Q2, and a third terminal of the second electronic switch Q2 is connected to an anode of each of the illumination light emitting diodes LED. The second voltage stabilizing circuit 18 stabilizes the voltage output by the power supply 9 and then reduces the voltage by the voltage reducing circuit 19, so that the voltage output by the power supply 9 matches with the required voltage of the lighting light emitting diode LED.

The first control unit U1 outputs pulse width modulation signals with different duty ratios, thereby adjusting the brightness of the illumination light emitting diode LED to meet the requirements of the detector on brightness in different illumination environments, so that the picture shot by the camera 6 is clearer and power is saved.

In the present embodiment, the second electronic switch Q2 is a P-type MOS field effect transistor, and the first terminal of the second electronic switch Q2 is a source of the P-type MOS field effect transistor. The second terminal of the second electronic switch Q2 is the gate of the P-type MOS fet, and the third terminal of the second electronic switch Q3 is the drain of the P-type MOS fet.

The utility model provides a detector is through setting up camera 6 in acceping the intracavity, and camera 6 is used for shooing the scene of opening 4 departments, and the rethread sets up wireless module 7 to the video that will shoot is passed through radio signal and is sent away, makes the process and the effect that the foreign matter was got rid of to the detector visual, avoids the pain or the pathological change that blind operation brought.

In the description of the present invention, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; the communication may be direct, indirect via an intermediate medium, or internal to both elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.

The above description is only for the preferred embodiment of the present invention, and should not be construed as limiting the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims

1. A detector, characterized in that: comprises a shell, a detection head connected with one end of the shell and a visual circuit,

2. The meter of claim 1, wherein: the micro-control unit is connected with the power supply; the negative pressure generating device is an air pump, and the air pump comprises a motor;

3. The meter of claim 2, wherein: the first electronic switch is a P-type MOS field effect transistor, the first end of the first electronic switch corresponds to the source electrode of the P-type MOS field effect transistor, the second end of the first electronic switch corresponds to the grid electrode of the P-type MOS field effect transistor, and the third end of the first electronic switch corresponds to the drain electrode of the P-type MOS field effect transistor.

4. The meter of claim 2, wherein: a diode is also connected in series between the first electronic switch and the motor, the anode of the diode is electrically connected with the third end of the first electronic switch, and the cathode of the diode is electrically connected with the motor.

5. The meter of claim 2, wherein: the first control unit comprises a signal generator, a signal receiver, a controller, a delayer and an accelerator, wherein the signal generator outputs a pulse width modulation signal; the signal receiver receives a suction force increasing signal and then transmits an instruction to the controller, the controller controls the duty ratio of a pulse width modulation signal output by the signal generator to increase, and the delayer enables the duty ratio of the pulse width modulation signal to slowly increase;

6. The meter of claim 1, wherein: the wireless module comprises a second control unit and an antenna, and the second control unit is respectively connected with the micro control unit and the antenna; the antenna is a planar inverted F antenna;

7. The meter of claim 1, wherein: the visual circuit also comprises a universal serial bus interface, the camera is connected with the serial bus interface, and the serial bus interface is connected with the micro control unit through a differential signal circuit.

8. The meter of claim 2, wherein: at least one lighting light-emitting diode is arranged in the accommodating cavity; the detector also comprises a second voltage stabilizing circuit, a voltage reducing circuit and a second electronic switch; two ends of the second voltage stabilizing circuit are respectively connected with the power supply and the voltage reducing circuit; the voltage reduction circuit is connected with the first end of the second electronic switch; the first control unit is connected with the second end of the second electronic switch, and the third end of the second electronic switch is respectively connected with the anode of each lighting light-emitting diode.

9. The meter of claim 8, wherein: the second electronic switch is a P-type MOS field effect transistor, a first end of the second electronic switch corresponds to a source electrode of the P-type MOS field effect transistor, a second end of the second electronic switch corresponds to a grid electrode of the P-type MOS field effect transistor, and a third end of the second electronic switch corresponds to a drain electrode of the P-type MOS field effect transistor.