CN218003962U - Hand-held appliance providing hand loss protection - Google Patents
Hand-held appliance providing hand loss protection Download PDFInfo
- Publication number
- CN218003962U CN218003962U CN202222187589.3U CN202222187589U CN218003962U CN 218003962 U CN218003962 U CN 218003962U CN 202222187589 U CN202222187589 U CN 202222187589U CN 218003962 U CN218003962 U CN 218003962U
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- 230000006698 induction Effects 0.000 claims abstract description 18
- 230000008054 signal transmission Effects 0.000 claims abstract description 3
- 230000002457 bidirectional effect Effects 0.000 claims description 12
- 238000001914 filtration Methods 0.000 claims description 11
- 239000010410 layer Substances 0.000 claims description 10
- 239000003990 capacitor Substances 0.000 claims description 6
- 239000011229 interlayer Substances 0.000 claims description 6
- 238000001514 detection method Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000000087 stabilizing effect Effects 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005520 electrodynamics Effects 0.000 description 1
- 210000003195 fascia Anatomy 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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Abstract
The utility model discloses a hand-held type utensil that provides losing hand protection, including host computer, power and motor, be provided with on the host computer and grip the region, it is provided with induction zone on the region to grip, induction zone connection director, be provided with human inductor in the induction zone, human inductor received signal transmission extremely the controller comes control the motor opens and stops. The utility model provides a lose hand protect function is applicable to the electronic class instrument of various hand-held types. Compare in current hands-free protection architecture, the utility model discloses in the twinkling of an eye that hand-held type electric appliance takes off the hand, alright realize in time detecting, and then in time cut-off circuit, whole assurance safety in utilization.
Description
Technical Field
The utility model belongs to the technical field of electrodynamic type instrument and specifically relates to a hand-held type utensil that provides losing hand protection is related to.
Background
The handheld electric tool relates to various fields, such as production and processing, building and construction, body-building and massage, and specific products such as a handheld angle grinder, an electric hand drill, a fascia gun and the like. At present, in the use process of the hand-held electric tool, the hand-off condition is caused by errors with probability, particularly, if the hand-off is suddenly carried out on the tool with the grinding wheel or the saw blade, the working end of the tool still runs at a high speed, and property loss and casualties are easily caused without taking timely power-off measures or safety protection.
Before the application of the application, the applicant also provides two ways to detect the falling-off condition so as to cut off the circuit, stop the machine and prevent further damage. Two ways of the prior application are specifically: firstly, a detection sensor after falling and impacting is adopted to carry out detection; secondly, after the hands are taken off, an acceleration sensor is adopted to perform detection. In both of these ways, although the requirement of stopping after the hands are taken off is satisfied, the stopping is performed after a period of time after the hands are taken off, even after the hands fall on the ground, and the tool is still not stopped during the period before the signal is detected. The present invention is further proposed to solve the problems of the prior art.
Disclosure of Invention
The utility model provides a to prior art not enough, the utility model provides a hand-held type utensil of losing one's hand protection, this hand-held type's electronic utensil takes off the hand in the twinkling of an eye, alright realize in time detecting, and then in time cut off circuit, whole assurance safety in utilization.
The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a hand-held type utensil of providing hand loss protection, includes host computer, power and motor, be provided with the region of gripping on the host computer, it is provided with the induction zone on the region to grip, induction zone connection director, be provided with human inductor in the induction zone, human inductor received signal transmission extremely the controller controls the motor opens and stops.
In the above technical solution, further, the human body sensor includes an induction electrode plate, and the induction electrode plate is connected to the controller through a lead.
In the above technical solution, further, the housing at the sensing area of the host includes an outer layer and an inner layer, an interlayer is formed between the outer layer and the inner layer, and the sensing electrode sheet is disposed in the interlayer.
In the above technical scheme, further, the controller includes a chip, a first resistor and a first switch, the chip is connected to the power supply, and the human body sensor receives a sensing signal and outputs the sensing signal to the first switch through the chip to control the motor to start and stop.
In the above technical solution, further, the power supply further includes a filtering module and a rectifying module, wherein the filtering module, the rectifying module and the power supply are connected in series.
In the above technical solution, further, there are a plurality of I/O ports on the chip, connect respectively the first resistance reaches the human body sensor, the VCC end of the chip is connected to the power supply anode, the VSS end of the chip is connected to the low level end of the filtering module, the first switch is a bidirectional trigger diode, the power supply cathode is connected to the motor cathode, and the motor anode is connected to the bidirectional trigger diode.
In the above technical solution, further, the filtering module includes a capacitor and a zener diode, and the capacitor is connected in parallel with the zener diode.
In the foregoing technical solution, further, the rectifying module includes a diode and a second resistor, and the diode is connected in series with the second resistor.
In the above technical solution, further, when the human body sensor cannot sense a human body signal, a low level is output to the diac through the first resistor, the diac is turned off, and the motor stops running; when the human body sensor senses a human body signal, a high level is output to the bidirectional trigger diode through the first resistor, the bidirectional trigger diode is conducted, and the motor operates normally.
The beneficial effects of the utility model are that: the utility model provides a lose hand protect function is applicable to the electronic class instrument of various hand-held type. Compare in current hands-free protection architecture, the utility model discloses in the twinkling of an eye at the electronic utensil of hand-held type breaks away from the hand, alright realize in time detecting, and then in time cut off circuit, whole assurance safety in utilization.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is an external view of an embodiment of the present invention.
Fig. 2 is another angular profile view of an embodiment of the present invention.
Fig. 3 is a sectional view of a main housing according to an embodiment of the present invention.
Fig. 4 is a schematic structural diagram of the controller of the present invention.
Fig. 5 is a schematic flow chart of the controller of the present invention.
Fig. 6 is a schematic diagram of the controller of the present invention.
Detailed Description
Referring to fig. 1-6, a hand-held device for protecting hands from being lost is specifically shown in the embodiment of an angle grinder, but it is clear that, in addition to the angle grinder, the solution of the present invention is used in other hand-held electric devices, and the effect is consistent, and the present invention should be included in the protection scope of the present invention. Specifically, the angle grinder with the hands-off protection function comprises a main machine 1 and a power supply arranged in the main machine 1, wherein the power supply can be in alternating current input or direct current input, and the implementation of the scheme is not influenced by any input mode; the device also comprises a motor and a controller which are arranged in the host. This host computer is provided with holds regional 2 for the user takes to hold and carries out work, is provided with induction area 21 on holding regional 2, induction area 21 connection director 3, be provided with human inductor in the induction area 21, human inductor received signal transmits extremely controller 3 controls the motor opens and stops.
Specifically, the human body sensor comprises a sensing electrode plate 31, and the sensing electrode plate 31 is connected to the controller 3 through a lead 4. Regarding mounting of the sensing electrode sheet 31: the housing 11 at the sensing region 21 of the host 1 includes an outer layer 111 and an inner layer 112, an interlayer 113 is formed between the outer layer 111 and the inner layer 112, and the sensing electrode sheet 31 is disposed in the interlayer 113.
As to the specific form of the controller 3: the controller 3 comprises a chip IC1, a first resistor R1 and a first switch Q1, the chip IC1 is connected with the power supply, and the human body sensor receives an induction signal and outputs the induction signal to the first switch Q1 to control the motor to start and stop through the chip IC 1. In order to enable the internal circuit interference to be less and the operation to be more stable, the power supply circuit further comprises a filtering module and a rectifying module, wherein the filtering module and the rectifying module are connected in series with the power supply, the filtering module comprises a capacitor C1 and a voltage stabilizing diode D2, the capacitor C1 is connected in parallel with the voltage stabilizing diode D2, the rectifying module comprises a diode D1 and a second resistor R2, and the diode D1 is connected in series with the second resistor R2.
The utility model discloses a filter module, including chip IC1, filtering module, chip IC1 is last to have a plurality of IO ports, connect respectively first resistance R1 reaches human sensor, chip IC 1's VCC end is connected the power is anodal, chip IC 1's VSS end is connected the low level end of filtering module, first switch Q1 is the bidirectional trigger diode, the power negative pole is connected with the motor negative pole, the motor is anodal to be connected with the bidirectional trigger diode.
When the human body sensor cannot sense a human body signal, a low level is output to the bidirectional trigger diode Q1 through the first resistor R1, the bidirectional trigger diode Q1 is cut off, and the motor stops running; when the human body sensor senses a human body signal, a high level is output to the bidirectional trigger diode Q1 through the first resistor R1, the bidirectional trigger diode Q1 is conducted, and the motor operates normally.
Regarding the working process of the present embodiment: when a user holds the angle grinder and covers the induction area 21, the induction electrode slice 31 and the controller 3 detect signals, the motor keeps a continuous connection state, and the main machine can work normally. When a user carelessly takes off the hand, the sensing area 21 is not contacted, and in this state, the sensing electrode slice 31 and the controller 3 detect signals to disconnect the internal circuit and stop the motor, so that the host can be stopped at the moment when the host takes off the hand, and the safety when the host takes off the hand is ensured.
The above is only the preferred embodiment of the present invention, and is not intended to limit the present invention in any form, and the present invention is not departed from the technical solution of the present invention, and the made simple modification, equivalent change or modification all fall into the protection scope of the present invention.
Claims (9)
1. The utility model provides a hand-held type utensil of providing protection of losing one's hand, includes host computer, power and motor, be provided with the region of gripping on the host computer, its characterized in that, it is provided with the induction zone on the region to grip, induction zone connection director, be provided with the human inductor in the induction zone, human inductor received signal transmission extremely the controller controls the motor opens and stops.
2. The hand held implement according to claim 1, wherein the body sensor comprises a sensing electrode pad connected to the controller by a lead.
3. The hand-held implement for providing hand loss protection as claimed in claim 2, wherein the housing at the sensing region of the main body comprises an outer layer and an inner layer with an interlayer formed therebetween, the sensing electrode pad being disposed in the interlayer.
4. The hand-held appliance for providing hand loss protection as claimed in claim 1, wherein the controller comprises a chip, a first resistor and a first switch, the chip is connected with the power supply, and the human body sensor receives the sensing signal and outputs the sensing signal to the first switch through the chip to control the start and stop of the motor.
5. The hand-held appliance for providing hands-off protection of claim 4, further comprising a filtering module and a rectifying module, wherein the filtering module and the rectifying module are connected in series with the power supply.
6. The hand-held appliance for providing hand loss protection as claimed in claim 5, wherein the chip has a plurality of I/O ports connected to the first resistor and the human body sensor, respectively, a VCC end of the chip is connected to the positive electrode of the power supply, a VSS end of the chip is connected to the low-level end of the filter module, the first switch is a diac, the negative electrode of the power supply is connected to the negative electrode of the motor, and the positive electrode of the motor is connected to the diac.
7. The hand-held appliance according to claim 5, wherein the filter module comprises a capacitor and a zener diode, the capacitor being connected in parallel with the zener diode.
8. The hand-held implement according to claim 5, wherein the rectifier module comprises a diode and a second resistor, the diode being connected in series with the second resistor.
9. The hand-held appliance for providing hand loss protection as claimed in claim 6, wherein when no human body signal is sensed by the human body sensor, a low level is output to the diac through the first resistor, the diac is turned off, and the motor stops running; when the human body sensor senses a human body signal, a high level is output to the bidirectional trigger diode through the first resistor, the bidirectional trigger diode is conducted, and the motor operates normally.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222187589.3U CN218003962U (en) | 2022-08-19 | 2022-08-19 | Hand-held appliance providing hand loss protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222187589.3U CN218003962U (en) | 2022-08-19 | 2022-08-19 | Hand-held appliance providing hand loss protection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218003962U true CN218003962U (en) | 2022-12-09 |
Family
ID=84320388
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222187589.3U Active CN218003962U (en) | 2022-08-19 | 2022-08-19 | Hand-held appliance providing hand loss protection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218003962U (en) |
-
2022
- 2022-08-19 CN CN202222187589.3U patent/CN218003962U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231221 Address after: 321300 floor 4, building 5, No. 11, Yunliu Road, Jiangnan Baiyun Industrial Zone, Yongkang City, Jinhua City, Zhejiang Province Patentee after: ZHEJIANG HELING ELECTRIC Co.,Ltd. Address before: 321300 4th floor, building 5, No.11, 6th Road, Jiangnan Baiyun Industrial Zone, Yongkang City, Jinhua City, Zhejiang Province Patentee before: ZHEJIANG HELING ELECTRIC Co.,Ltd. Patentee before: Jinhua Baicheng Tool Manufacturing Co.,Ltd. |