CN102520454B

CN102520454B - Mobile metal object approach safety warner

Info

Publication number: CN102520454B
Application number: CN2011104274115A
Authority: CN
Inventors: 伊廷雷; 王家庚
Original assignee: SHANDONG LAIWU JINLEI WIND POWER TECHNOLOGY Co Ltd
Current assignee: Jinlei Technology Co., Ltd.
Priority date: 2011-12-17
Filing date: 2011-12-17
Publication date: 2013-11-20
Anticipated expiration: 2031-12-17
Also published as: CN102520454A

Abstract

The invention discloses a mobile metal object approach safety warner, which comprises a first 'U'-shaped transformer, a second 'U'-shaped transformer, a first switch output circuit, a warning LED lamp and a waistband, wherein the first switch output circuit consists of a triode VT2. The mobile metal object approach safety warner is characterized in that a box is fixed in the middle of the back side of the waistband, the first 'U'-shaped transformer, the second 'U'-shaped transformer, the first switch output circuit and a second switch output circuit are respectively fixed at two ends of a circuit board in the box, the first switch output circuit and the second switch output circuit correspond to the first 'U'-shaped transformer and the second 'U'-shaped transformer respectively, an elastic rod is fixed at the front end of one side of the waistband, and the warning LED lamp is mounted at the end of the elastic rod. The warner is worn at the back of an operation worker, the warning LED lamp is placed on the chest of the operation worker, the operation worker can notice metal objects approaching from the back so as to take measures or avoid as soon as possible. Since the warner is provided with two sensing elements, the sensing region of certain width is formed, length of the approaching metal objects can be measured, and the warner cannot make warning for small metal objects. Accordingly, the warner is particularly suitable for workshop operation workers.

Description

Mobile metal object approach safety warner

Technical field

The present invention relates to a kind of workshop safety convenience instrument, specifically a kind of can be when metal object, particularly great metal object be come from people's behind movement, the mobile metal object approach safety warner that can propose to warn.

Background technology

In workshop, have various large-scale metal objects, what these metal objects had is right cylinder, what have is body, weighs several, can roll on ground or exclusive guideway, the great metal object that has some not roll also needs driving mobile, these weights,, in case bump against the people, can produce disastrous accident.And also being divided into different production spaces in workshop, the workman is doing different work by the division of labor, has various noises in workshop.In this case, when the workman operated a position, if weight mobile coming from behind arranged, the operator can't see the mobile object of back,, because noise is large, also can't hear the rolling sound of metal object, and major accident can occur.At present, in order to prevent the generation of this class accident, the general helmet that adopts, pay close attention to mobile object people from the place ahead by the workman who operates the moving metal object besides whether arranged, but these methods have significant limitation, can not watch voluntarily moving metal object behind attentively by the operator, so this class accident still happens occasionally.pass through inspection information, finding that there is metal object moves near the report of reporting to the police, its structure comprises oscillatory circuit, switch output circuit and warning circuit, oscillatory circuit is comprised of miniature transformer and a triode, miniature transformer wherein is sensing element, output switch is comprised of another triode, alarming device can be sound or light, when metal object is close, effect due to electromagnetic induction, destroyed the original oscillating condition of oscillatory circuit, make oscillatory circuit stop vibration, make the collector output high level of the triode of output switch, can start warning circuit.But the deficiency that this metal object moves near the device of reporting to the police is: as long as there is metal object close, and size no matter, it all can send warning, so, be not suitable for workshop.

Summary of the invention

The object of the present invention is to provide a kind of in workshop, can metal object, particularly long, when heavier metal object is come from people's behind movement, caution can in time be proposed, to ensure the mobile metal object approach safety warner of operator's safety.

in order to reach above purpose, the technical solution adopted in the present invention is: this mobile metal object approach safety warner, comprise first " U " type transformer, the the first switch output circuit that is formed by triode VT2, luminous alarming LED lamp and waistband, being provided with woollen goods at the leading section of waistband buckles, it is characterized in that: the fixing upper cartridge body at the rear side of waistband middle part, circuit board on fixing in box body, fix respectively first " U " type transformer and second " U " type transformer at the two ends of circuit board, and the first switch output circuit that is formed by triode VT2 on fixing and the second switch output circuit that is formed by triode VT5, first " U " type transformer successively with the first switch output circuit that is formed by triode VT2, the second switch output circuit that is comprised of triode VT5 is connected with luminous alarming LED lamp, second " U " type transformer is connected with the second switch output circuit that is comprised of triode VT5, flexible rod on a side front end of waistband is fixing, install luminous alarming LED lamp in the end of flexible rod, luminous alarming LED lamp is by the warning circuit on the plate of wire power connection road.

The present invention also implements by following measure: the collector of a contact connecting triode VT1 of described first " U " type transformer, another contact of described first " U " type transformer is by the base stage of capacitor C 2 connecting triode VT1, the grounded emitter of triode VT1, thus the first oscillatory circuit formed; The collector of a contact connecting triode VT4 of described second " U " type transformer, another contact of described second " U " type transformer is by the base stage of capacitor C 9 connecting triode VT4, the grounded emitter of triode VT4, thus the second oscillatory circuit formed.

Described the first switch output circuit that is formed by triode VT2, comprise triode VT2 and capacitor C 4, the base stage of triode VT2 connects the collector of triode VT1 in the first oscillatory circuit by capacitor C 4, the collector of triode VT2 is connected with the base stage of triode VT5 in the second switch output circuit, the grounded emitter of triode VT2.

The described second switch output circuit that is formed by triode VT5, comprise triode VT5 and capacitor C 6, the base stage of triode VT5 connects the collector of triode VT4 in the second oscillatory circuit by capacitor C 6, and connect simultaneously the collector of the triode VT2 in the first switch output circuit, the base stage of triode VT5 in the circuit of the collector connection luminous alarming LED lamp of the triode VT5 in the second switch output circuit, the grounded emitter of the triode VT5 in the second switch output circuit.

Diapire and the perisporium of described box body are made by magnetic isolation plate.

Beneficial effect of the present invention is: this mobile metal object approach safety warner, and because being is worn on the operator after one's death, its warning lamp is located at front, can find at any time the metal object that moves after one's death, to handle it as soon as possible or to hide; Owing to having adopted two sensing elements, make induction zone have certain width,, so can predict the length of the metal object that shifts near, can not make caution to little metal object, in order to avoid affect work; Owing to adopting light to warn, and light stretches in front, so easily observation can not caused delay because can't hear.Be specially adapted to the plant operations workman

Description of drawings

Fig. 1 is that schematic rear view is cutd open by structure of the present invention office.

Fig. 2 is schematic block circuit diagram of the present invention.

Fig. 3 is that the present invention is along Figure 1A-A section cross-sectional schematic.

Fig. 4 is circuit theory schematic diagram of the present invention.

In figure: 1, first " U " type transformer; 2, the first switch output circuit; 3, luminous alarming LED lamp; 4, waistband; 5, woollen goods button; 6, box body; 7, circuit board; 8, second " U " type transformer; 9, second switch output circuit; 10, flexible rod.

Embodiment

Make the present invention with reference to Fig. 1, Fig. 2, Fig. 3, Fig. 4, and on probation in our company in the 1-8 month in 2011.this mobile metal object approach safety warner, comprise first " U " type transformer 1, the the first switch output circuit 2 that is formed by triode VT2, luminous alarming LED lamp 3 and waistband 4, be provided with woollen goods at the leading section of waistband 4 and buckle 5, make waistband 4 be fastened on operator's waist by woollen goods button 5, it is characterized in that: the fixing upper cartridge body 6 at the rear side of waistband 1 middle part, box body 6 interior fixing on circuit board 7, fix respectively first " U " type transformer 1 and second " U " type transformer 8 at the two ends of circuit board 7, and the first switch output circuit 2 that is formed by triode VT2 on fixing and the second switch output circuit 9 that is formed by triode VT5, first " U " type transformer 1 successively with the first switch output circuit 2 that is formed by triode VT2, the second switch output circuit 9 that is comprised of triode VT5 is connected connection with luminous alarming LED lamp, second " U " type transformer 8 is connected with the second switch output circuit 9 that is comprised of triode VT5, flexible rod 10 on a side front end of waistband 4 is fixing, install luminous alarming LED lamp 3 in the end of flexible rod 10, luminous alarming LED lamp 3 is by the warning circuit on wire power connection road plate 7.first " U " type transformer 1 and second " U " type transformer 8 are as responsive sensing element, the opening direction of its " U " type is for concentrating the induction direction, utilize electromagnetic induction principle to survey the metal object that approaches, when one of them senses the detectable signal that metal object approaches when first " U " type transformer 1 and second " U " type transformer 8, can the conducting warning circuit, while only having first " U " type transformer 1 and second " U " transformer 8 all to sense the detectable signal that metal object approaches simultaneously, just can make the first switch output circuit 2 that is formed by triode VT2 and second switch output circuit 9 conductings simultaneously that formed by triode VT5, the signal that generation has metal object to shift near, luminous alarming LED lamp 3 is bright, thereby determined the length of the metal object that shifts near.

The present invention also implements by following measure: the collector of a contact connecting triode VT1 of described first " U " type transformer 1, another contact of described first " U " type transformer 1 is by the base stage of capacitor C 2 connecting triode VT1, the grounded emitter of triode VT1, thus the first oscillatory circuit formed; The collector of a contact connecting triode VT4 of described second " U " type transformer 8, another contact of described second " U " type transformer 8 is by the base stage of capacitor C 9 connecting triode VT4, the grounded emitter of triode VT4, thus the second oscillatory circuit formed.

Described the first switch output circuit 2 that is formed by triode VT2, comprise triode VT2 and capacitor C 4, the base stage of triode VT2 connects the collector of triode VT1 in the first oscillatory circuit by capacitor C 4, the collector of triode VT2 is connected with the base stage of triode VT5 in second switch output circuit 9, the grounded emitter of triode VT2.When not having metal object to shift near first " U " type transformer 1, the signal that the first oscillatory circuit produces makes the triode VT2 conducting in the first switch output circuit 2, the capacitor C 5 that the signal of the collector output of triode VT2 is connected is close to logical, and at this moment, the voltage U 0 of output terminal output is low level; When having metal object to shift near first " U " type transformer 1, effect due to electromagnetic induction, destroyed the intrinsic oscillating condition of the first oscillatory circuit, make the first oscillatory circuit stop vibration, at this moment, triode VT2 in the first switch output circuit 2 has lost bias voltage, and conducting state becomes cut-off state, and the voltage U 0 of the collector output of the triode VT2 in its first switch output circuit 2 is high level.

The described second switch output circuit 9 that is formed by triode VT5, comprise triode VT5 and capacitor C 6, the base stage of triode VT5 connects the collector of triode VT4 in the second oscillatory circuit by capacitor C 6, and connect simultaneously the collector of the triode VT2 in the first switch output circuit 2, the base stage of triode VT5 in the circuit of the collector connection luminous alarming LED lamp 3 of the triode VT5 in second switch output circuit 9, the grounded emitter of the triode VT5 in second switch output circuit 9.in like manner, when not having metal object to shift near second " U " type transformer 8, the signal that the second oscillatory circuit produces makes the triode VT5 conducting in second switch output circuit 9, the capacitor C 7 that the signal of the collector output of triode VT5 is connected is close to logical, at this moment, the voltage U 0 of output terminal output is low level, when having metal object to shift near second " U " type transformer 8, effect due to electromagnetic induction, destroyed the intrinsic oscillating condition of the second oscillatory circuit, make the second oscillatory circuit stop vibration, at this moment, triode VT5 in second switch output circuit 9 has lost bias voltage, conducting state becomes cut-off state, the voltage U 0 of the collector output of the triode VT5 in second switch output circuit 9 is high level, if the voltage U 0 of the collector output of the triode VT2 in the first switch output circuit 2 is low level at this moment, the high level of triode VT5 collector output will flow to the low level of the triode VT2 collector in the first switch output circuit 2, so can not start the circuit of luminous alarming LED lamp 3, if the voltage U 0 of the collector of the triode VT2 in the first switch output circuit 2 output is also high level, start the circuit of luminous alarming LED lamp 3, thereby make luminous alarming LED lamp 3 bright.

For being fixed on a locational operator, if there are 5 meters long above axle class parts to approach from the rear, when moving on to from the position away from 5 meters of operators, luminous alarming LED lamp 3 can be bright as can be known by on probation, and the operator can make a response immediately; If there are 3 meters long above axle class parts to approach from the rear, when moving on to from the position away from 4 meters of operators, luminous alarming LED lamp 3 can be bright, and the operator can make a response immediately.Thereby significantly reduced the incidence of major accident.

Claims

1. mobile metal object approach safety warner, comprise first " U " type transformer (1), the the first switch output circuit (2) that is formed by triode (VT2), luminous alarming LED lamp (3) and waistband (4), be provided with woollen goods at the leading section of waistband (4) and buckle (5), it is characterized in that: the fixing upper cartridge body (6) at the rear side of waistband (1) middle part, fixing upper circuit board (7) in box body (6), upper first " U " type transformer (1) and second " U " type transformer (8) are fixed respectively in two ends at circuit board (7), and the first switch output circuit (2) that is formed by triode (VT2) on fixing and the second switch output circuit (9) that is formed by triode (VT5), first " U " type transformer (1) successively with the first switch output circuit (2) that is formed by triode (VT2), be connected 3 by the second switch output circuit (9) that triode (VT5) forms with luminous alarming LED lamp) connect, second " U " type transformer (8) is connected with the second switch output circuit (9) that is comprised of triode (VT5), in the fixing upper flexible rod (10) of a side front end of waistband (4), install luminous alarming LED lamp (3) in the end of flexible rod (10),

Described the first switch output circuit (2) that is formed by triode (VT2), comprise triode (VT2) and electric capacity (C4), the base stage of triode (VT2) connects the collector of triode (VT1) in the first oscillatory circuit by electric capacity (C4), the collector of triode (VT2) is connected with the base stage of triode (VT5) in second switch output circuit (9), the grounded emitter of triode (VT2);

the described second switch output circuit (9) that is formed by triode (VT5), comprise triode (VT5) and electric capacity (C6), the base stage of triode (VT5) connects the collector of triode (VT4) in the second oscillatory circuit by electric capacity (C6), and connect simultaneously the collector of the triode (VT2) in the first switch output circuit (2), the base stage of the triode (VT5) in the circuit of the collector connection luminous alarming LED lamp (3) of the triode (VT5) in second switch output circuit (9), the grounded emitter of the triode (VT5) in second switch output circuit (9).