CN2938572Y - Safety power-off switch of paper breaker - Google Patents
Safety power-off switch of paper breaker Download PDFInfo
- Publication number
- CN2938572Y CN2938572Y CN 200620123677 CN200620123677U CN2938572Y CN 2938572 Y CN2938572 Y CN 2938572Y CN 200620123677 CN200620123677 CN 200620123677 CN 200620123677 U CN200620123677 U CN 200620123677U CN 2938572 Y CN2938572 Y CN 2938572Y
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- CN
- China
- Prior art keywords
- shredder
- relay
- switch
- control
- contact plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
A safe disconnecting switch for paper shredder, comprising a contact plate beside the paper inlet of the paper shredder, wherein the contact plate is connected to a circuit board used to control the connection of the switch and further control the relay to disconnect the paper shredder circuit and the power supply. The circuit board comprises a discharge unit consisting of a relay and a diode connected together, and an amplifier circuit used to control the relay; wherein the relay is connected to the input and output terminals of the motor respectively; a control switch is also provided above the relay, used to connect to the positive input terminal of the DC power supply to control the relay. Thus, when a human or animal limb or metal, water or any other object is going into the paper inlet by accident and touches the contact plate, the power supply can be cut off immediately for the sake of safety.
Description
Technical field
The utility model refers to a kind of safe cut-off switch of shredder especially relevant for a kind of shredder safeguard construction.
Background technology
General shredder is except can destroying classified papers, more can shred paper in order to recovery, itself all has a mains switch each shredder, and to control the power supply of shredder, the operator uses for convenient, mains switch mostly is to be opening, when desiring shredded paper, directly paper is sent into paper feed port, yet finger is stretched in the paper feed port when child that happens occasionally plays, even there are tail of cat or the tongue of dog to be involved in the shredder situation about damaging.
The utility model people in view of this, the industry experience for many years is engaged in accumulation, is study intensively and test improvement repeatedly, nowadays creates a kind of safe cut-off switch of novel shredder finally, can forgo and commonly use the product shortcoming, to promote effect.
Summary of the invention
The utility model purpose is to provide a kind of safe cut-off switch of shredder, when operator or animal limb stretch into paper feed port because of carelessness and touch contact plate, but the shredder hard stop.
Technical solutions of the utility model: a kind of safe cut-off switch of shredder, comprise the contact plate that is positioned at shredder paper feed port periphery, it is characterized in that: contact plate and is used for the control switch conducting, and then control relay links the shredder circuit breaker with the circuit board of cutting off the electricity supply, this circuit board includes a discharge cell that is connected and composed by a relay and a diode, and is used to control the amplifying circuit of this relay; Wherein, this relay is connected with output with the input of motor respectively, and the relay top also has one in order to be connected to the control switch of DC positive source input with control relay.
Wherein, contact plate has the adhered layer that is used to be pasted on the shredder.
Wherein, contact plate has and is used to print the conduction enamelled coating that is attached on the shredder.
Wherein, shredder paper feed port periphery has conductor construction.
The utility model beneficial effect: in sum; the safe cut-off switch of the utility model shredder; the paper feed port periphery that lies in shredder is provided with contact plate; when human body, animal, metal or water are desired to enter paper feed port and are touched contact plate; but shredder hard stop; to guarantee safety, has practical effect.
Understand in order to allow the auditor that the utility model is had further, Zi Zuo is as follows with graphic detailed description the utility model.
Description of drawings
Fig. 1 is an outside drawing of the present utility model.
Fig. 2 is an exploded view of the present utility model.
Fig. 3 is the circuit diagram of the utility model preferred embodiment.
Fig. 4 is an enforcement illustration of the present utility model.
Embodiment
See also Figure 1 and Figure 2; paper feed port 11 peripheries of the utility model shredder 10 are equipped with the contact plate (touch board) 20 on plane; when the mains switch 12 of shredder 10 is opened; paper is sent in the paper feed port 11 can carry out the shredded paper operation; when the limbs of human body or animal or metallics touching contact plate 20, but the shredder hard stop.
Consult shown in Figure 3ly, the circuit diagram of a preferred embodiment of the present utility model comprises on this circuit board 30 that wherein a relay 31, two diodes 32,36, a control switch 33 and two transistors 34,35 are connected with above-mentioned contact plate 20; Wherein this relay 31 is connected the input (motor-power input) and output (motor-power output) of motor respectively, form a discharge cell with a diode 32 wherein, relay 31 top tools one control switch 33 is with control relay 31, control switch 33 tops are connected to DC power input (positive pole), the operation principle of this circuit: work as human body, animal, when metal or water are touched the electric conductor of contact plate 20, electric current is via two transistors 34,35 with the amplification of another diode 36 output, make control switch 33 conductings, via control switch 33 control relays 31, shredder is intercepted for opening circuit, to cut off the shredder power supply by original normally closed circuit (path).
Moreover, contact plate 20 of the present utility model is provided with adhered layer, except paster moulding as shown in Figure 1 and Figure 2, paper feed port 11 peripheries that conduct electricity enamelled coating and directly seal is attached to shredder 10 also can be set as shown in Figure 4, or the plastic casing of paper feed port 11 peripheries itself just is made into electric conductor.
Claims (4)
1. the safe cut-off switch of a shredder, comprise the contact plate that is positioned at shredder paper feed port periphery, it is characterized in that: contact plate and is used for the control switch conducting, and then control relay links the shredder circuit breaker with the circuit board of cutting off the electricity supply, this circuit board includes a discharge cell that is connected and composed by a relay and a diode, and is used to control the amplifying circuit of this relay; Wherein, this relay is connected with output with the input of motor respectively, and the relay top also has one in order to be connected to the control switch of DC positive source input with control relay.
2. the safe cut-off switch of shredder as claimed in claim 1, it is characterized in that: contact plate has the adhered layer that is used to be pasted on the shredder.
3. the safe cut-off switch of shredder as claimed in claim 1 is characterized in that: contact plate has and is used to print the conduction enamelled coating that is attached on the shredder.
4. the safe cut-off switch of shredder as claimed in claim 1, it is characterized in that: shredder paper feed port periphery has conductor construction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620123677 CN2938572Y (en) | 2006-07-14 | 2006-07-14 | Safety power-off switch of paper breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620123677 CN2938572Y (en) | 2006-07-14 | 2006-07-14 | Safety power-off switch of paper breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2938572Y true CN2938572Y (en) | 2007-08-22 |
Family
ID=38362601
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620123677 Expired - Lifetime CN2938572Y (en) | 2006-07-14 | 2006-07-14 | Safety power-off switch of paper breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2938572Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107952546A (en) * | 2017-11-30 | 2018-04-24 | 苏州汇恒网络科技有限公司 | The efficient thorough shredder of one kind office |
-
2006
- 2006-07-14 CN CN 200620123677 patent/CN2938572Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107952546A (en) * | 2017-11-30 | 2018-04-24 | 苏州汇恒网络科技有限公司 | The efficient thorough shredder of one kind office |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20070822 |
|
| EXPY | Termination of patent right or utility model |