CN105298280A - Anti-hand-pinching device used for door frame - Google Patents
Anti-hand-pinching device used for door frame Download PDFInfo
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- CN105298280A CN105298280A CN201510284419.9A CN201510284419A CN105298280A CN 105298280 A CN105298280 A CN 105298280A CN 201510284419 A CN201510284419 A CN 201510284419A CN 105298280 A CN105298280 A CN 105298280A
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- door
- chip microcomputer
- infrared
- doorframe
- sensor
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Abstract
The invention discloses an anti-hand-pinching device used for a door frame. The anti-hand-pinching device comprises an infrared tube sensor, a pyroelectricity sensor, a signal collecting circuit, a single chip microcomputer, a buzzer, a driving circuit, a motor and a limiting spring. The infrared tube sensor comprises an infrared emitting tube and an infrared receiving tube, and the infrared emitting tube and the infrared receiving tube are installed at the two sides of the door frame and the door slot at the door leaf rotating shaft respectively. The pyroelectricity sensor is installed at the inner side of the door frame. The infrared tube sensor and the pyroelectricity sensor are connected with the single chip microcomputer through the signal collecting circuit. The single chip microcomputer is further connected with the buzzer and the driving circuit. The output end of the driving circuit is connected with the motor. The motor controls the limiting spring to pop up so that the limiting spring can abut against the door leaf, and the door leaf is prevented from being closed. By means of the anti-hand-pinching device, whether a finger or a toe or other parts of a child is located in the door slot between the door frame and the door leaf rotating shaft can be found automatically, an alarm can be given in time, the motor controls the limiting spring to pop up so that the limiting spring can abut against the door shaft, the door is prevented from being closed, the safety and the practicability of the door are greatly improved, and a good application prospect is achieved.
Description
Technical field
The present invention relates to a kind of finger pinch device for doorframe, belong to a technical field of safety protection.
Background technology
Obtain inner room in Modern Family house to get more and more, use door mostly adopt folding or door-hinge form, because of reasons in structure, exist open the door time doorframe and door leaf rotating shaft side clearance excessive, and children like finger to put in crack between a door and its frame plays, often cause the unexpected potential safety hazard crushing children's finger accident, bring injury to children, especially in kindergarten, children are switch classroom door continually, open and close door is played, and especially easily jams a finger, and there is larger potential safety hazard.
Summary of the invention
The object of the invention is to overcome existing children continually switch doorframe time, easily jammed a finger by doorframe and door leaf rotating shaft side clearance, there is the problem of larger potential safety hazard.
In order to achieve the above object, the technical solution used in the present invention is:
A kind of finger pinch device for doorframe, it is characterized in that: comprise infrared tube sensor, pyroelectric sensor, signal acquisition circuit, single-chip microcomputer, buzzer, drive circuit, motor and limit spring, described infrared tube sensor comprises infrared emission tube and infrared receiver tube, be arranged on the both sides that doorframe and door leaf rotating shaft side door stitch respectively, described pyroelectric sensor is arranged on the inner side of doorframe, described infrared tube sensor, pyroelectric sensor is connected with the input of single-chip microcomputer respectively by signal acquisition circuit, the output of described single-chip microcomputer respectively with buzzer, drive circuit is connected, the output of described drive circuit is connected with motor, described Electric Machine Control limit spring ejects, prop up the closed of door leaf.
Aforesaid a kind of finger pinch device for doorframe, is characterized in that: described single-chip microcomputer is MPS430 chip.
Aforesaid a kind of finger pinch device for doorframe, it is characterized in that: also comprise buffer circuit, described buffer circuit is arranged between the output of single-chip microcomputer and drive circuit.
Aforesaid a kind of finger pinch device for doorframe, is characterized in that: described pyroelectric sensor adopts infrared BISS0001 chip to form.
Aforesaid a kind of finger pinch device for doorframe, is characterized in that: be provided with 16 bit AD sample chip AD7682 chips in described signal acquisition circuit.
Aforesaid a kind of finger pinch device for doorframe, is characterized in that: described single-chip microcomputer is also connected with watchdog circuit.
The invention has the beneficial effects as follows: the present invention is used for the finger pinch device of doorframe, pyroelectric sensor collection is adopted whether to have human body close, and by infrared tube sensor, find whether to have the finger of children, toe or other positions, be positioned at frame and door leaf rotating shaft side door stitches, and alarm, and ejected by Electric Machine Control limit spring and prop up door-hinge and stop shutting suddenly of door, structure is simple, easily realizes, greatly improve safety and the practicality of door, have a good application prospect.
Accompanying drawing explanation
Fig. 1 is the system block diagram of the finger pinch device for doorframe of the present invention.
Detailed description of the invention
Below in conjunction with Figure of description, the invention will be further described.Following examples only for technical scheme of the present invention is clearly described, and can not limit the scope of the invention with this.
As shown in Figure 1, a kind of finger pinch device for doorframe, comprise infrared tube sensor, pyroelectric sensor, signal acquisition circuit, single-chip microcomputer, buzzer, drive circuit, motor and limit spring, described infrared tube sensor comprises infrared emission tube and infrared receiver tube, be arranged on the both sides that doorframe and door leaf rotating shaft side door stitch respectively, opposition receiving and transmitting signal, pyroelectric sensor is arranged on the inner side of doorframe, described infrared tube sensor, pyroelectric sensor is connected with the input of single-chip microcomputer respectively by signal acquisition circuit, the output of described single-chip microcomputer respectively with buzzer, drive circuit is connected, the output of described drive circuit is connected with motor, described Electric Machine Control limit spring ejects, prop up the closed of door leaf.
Described single-chip microcomputer is MPS430 chip, with low cost, low in energy consumption, and Peripheral Interface is many, and be convenient to expansion, also comprise buffer circuit, described buffer circuit is arranged between the output of single-chip microcomputer and drive circuit, improves the reliability of circuit.
Described pyroelectric sensor adopts infrared BISS0001 chip to form, and be provided with 16 bit AD sample chip AD7682 chips in signal acquisition circuit, be four-way AD sampling A/D chip, sampling precision is high, and accuracy is high.
Described single-chip microcomputer is also connected with watchdog circuit, prevents single-chip microcomputer being subject to external interference (as electrostatic interference), during system crash, again feeds dog, restarts single-chip microcomputer, ensure the work of single-chip microcomputer normal reliable.
The course of work of the finger pinch device for doorframe of the present invention is as follows, first the existence of human body near doorframe is detected by pyroelectric sensor, and judge whether children or other people finger by infrared tube sensor, toe or other positions, be positioned at frame and door leaf rotating shaft side door stitches, when occurring that shelter is between outside line transmitting tube and infrared receiver tube, infrared receiver tube does not receive infrared signal, therefore, be judged as the finger of children, toe or other positions are positioned at frame and door leaf rotating shaft side door stitches, single-chip microcomputer is in conjunction with pyroelectric sensor, the Output rusults of infrared tube sensor, if existence body is positioned at frame and door leaf rotating shaft side door stitches, control buzzer warning, and control machine operation by drive circuit, Electric Machine Control limit spring ejects and props up door-hinge to stop shutting suddenly of door, effective protection by the object that presss from both sides (as the finger of children, toe or other positions), structure is simple, easy realization, greatly improve safety and the practicality of door, have a good application prospect.
More than show and describe general principle of the present invention, principal character and advantage.The technician of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and manual just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (6)
1. the finger pinch device for doorframe, it is characterized in that: comprise infrared tube sensor, pyroelectric sensor, signal acquisition circuit, single-chip microcomputer, buzzer, drive circuit, motor and limit spring, described infrared tube sensor comprises infrared emission tube and infrared receiver tube, be arranged on the both sides that doorframe and door leaf rotating shaft side door stitch respectively, described pyroelectric sensor is arranged on the inner side of doorframe, described infrared tube sensor, pyroelectric sensor is connected with the input of single-chip microcomputer respectively by signal acquisition circuit, the output of described single-chip microcomputer respectively with buzzer, drive circuit is connected, the output of described drive circuit is connected with motor, described Electric Machine Control limit spring ejects, prop up the closed of door leaf.
2. a kind of finger pinch device for doorframe according to claim 1, is characterized in that: described single-chip microcomputer is MPS430 chip.
3. a kind of finger pinch device for doorframe according to claim 1, it is characterized in that: also comprise buffer circuit, described buffer circuit is arranged between the output of single-chip microcomputer and drive circuit.
4. a kind of finger pinch device for doorframe according to claim 1, is characterized in that: described pyroelectric sensor adopts infrared BISS0001 chip to form.
5. a kind of finger pinch device for doorframe according to claim 1, is characterized in that: be provided with 16 bit AD sample chip AD7682 chips in described signal acquisition circuit.
6. a kind of finger pinch device for doorframe according to claim 1, is characterized in that: described single-chip microcomputer is also connected with watchdog circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510284419.9A CN105298280A (en) | 2015-05-29 | 2015-05-29 | Anti-hand-pinching device used for door frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510284419.9A CN105298280A (en) | 2015-05-29 | 2015-05-29 | Anti-hand-pinching device used for door frame |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105298280A true CN105298280A (en) | 2016-02-03 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510284419.9A Pending CN105298280A (en) | 2015-05-29 | 2015-05-29 | Anti-hand-pinching device used for door frame |
Country Status (1)
| Country | Link |
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| CN (1) | CN105298280A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106522707A (en) * | 2016-12-05 | 2017-03-22 | 乐视控股（北京）有限公司 | Door system protecting children against pinch and method for protecting children from being pinched in door |
| CN108412357A (en) * | 2018-05-18 | 2018-08-17 | 北京汽车股份有限公司 | Tail-gate anti-clipping system and vehicle with it |
| WO2018184449A1 (en) * | 2017-04-03 | 2018-10-11 | 郑运婷 | Intelligent home door |
| WO2018184451A1 (en) * | 2017-04-03 | 2018-10-11 | 郑运婷 | Intelligent home automatic door |
| CN114961492A (en) * | 2022-05-31 | 2022-08-30 | 中冶焦耐(大连)工程技术有限公司 | Anti-pinch door and buffer device thereof |
-
2015
- 2015-05-29 CN CN201510284419.9A patent/CN105298280A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106522707A (en) * | 2016-12-05 | 2017-03-22 | 乐视控股（北京）有限公司 | Door system protecting children against pinch and method for protecting children from being pinched in door |
| WO2018184449A1 (en) * | 2017-04-03 | 2018-10-11 | 郑运婷 | Intelligent home door |
| WO2018184451A1 (en) * | 2017-04-03 | 2018-10-11 | 郑运婷 | Intelligent home automatic door |
| CN108412357A (en) * | 2018-05-18 | 2018-08-17 | 北京汽车股份有限公司 | Tail-gate anti-clipping system and vehicle with it |
| CN114961492A (en) * | 2022-05-31 | 2022-08-30 | 中冶焦耐(大连)工程技术有限公司 | Anti-pinch door and buffer device thereof |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160203 |