CN2162087Y

CN2162087Y - Umbrella hook formation with automatic device

Info

Publication number: CN2162087Y
Application number: CN93230091U
Authority: CN
Inventors: 王金河
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-01-18
Filing date: 1993-01-18
Publication date: 1994-04-20
Anticipated expiration: 2003-01-18

Abstract

The utility model relates to an umbrella-shaped hook formation with an automatic device, which is composed of an automatic control part, a linking part, an outer-catching hook part, a hook part, a fish net part and a pull-assisting device. The brain line of a group-star hook is connected to a center brain line, and the hook and the fish net are respectively fixed on the inner side and the outer side of the outer-catching hook; the outer-catching hook is connected with a fixed hook rack, and the outer-catching hook is connected with a fixed hook rack by an auxiliary hook rod and a movable hook rack. When a fish bites a bait hook, a pull-assisting rod is pushed by a pull-assisting spring to pull the center brain line and a control pin, so that the control for a control arm is relieved; a rotary button and a control rod are driven by a torsion spring to rotate synchronously, a clamping tenon is rotated into the body of the hook, and the hook and the fish net are driven by the outer-catching hook under the resultant force of the pushing force of a power spring and the shrinkage force of the auxiliary hook rod to strike inwards. The utility model does not need controlling by people and machines on banks (boats), and the utility model can be used for automatically beating, hooking, hanging and netting for fishes. The utility model is a novel angling device and fishing device.

Description

Umbrella hook formation with automatic device

The utility model relates to a kind of open-phase protector for three phase motor of undercurrent type microelectronics non-contact type, is applicable to that all exchange threephase motor.

No matter threephase motor is that the phase failure starts, or open-phase running all can produce excessive electric current, burns motor in a short period of time.Therefore should install phase failure protector.Existing phase failure protector mostly is that the big power consumption of volume is big, poor reliability, and the cost height is unfavorable for popularization and application.

The purpose of this utility model is to manufacture and design a kind of undercurrent type all-electronin circuit, non-contact type, solid structure, cheap small-sized triphase motor phase failure protector.

The technical scheme that the utility model solves is: by a shell and three-phase alternating current signal acquisition circuit 1, three tunnel voltage doubling rectifing circuits 2, and DC power-supply circuit 3, AND 4, the open-phase protector for three phase motor that non-contact switch circuit 5 is formed.Its operation principle is: the three-phase alternating current signal of being gathered electromotor by three small current transformers, and become ac voltage signal and be transported to three tunnel voltage doubling rectifing circuits 2, behind voltage multiplying rectifier, be divided into two the tunnel: the one tunnel and be sent to AND 4, provide dc source to electronic circuit through DC power-supply circuit 3; Three tunnel three inputs that are transported to AND 4 are divided on another road, by AND 4 carry out opening of control non-contact circuit 5 after the analyzing and processing or

Close.The logical relation of its entire circuit can realize: when electromotor does not turn round; the whole protecting device is not worked; have only when pressing start button; the three-phase current of threephase motor all just often; AND 4 is because of obtaining dc source; and its three input is high level " 1 ", thereby makes the output of AND 4 also be high level " 1 ".This moment, non-contact switch circuit 5 was because of obtaining the trigger voltage conducting, and then control external load circuit operate as normal, and start button unclamps motor and moves as usual.And when a certain phase of electromotor or two-phase current reduced to setting value or reduce to " O ", AND 4 was output as low level " O ", and non-contact switch circuit 5 turn-offs because of losing trigger voltage, contactor release, thus electromotor has been protected in the motor stall.

The utility model is novel, and save ad hoc complete machine powersupply system, and hold a concurrent post by current transformer and voltage doubling rectifing circuit, all electronic, output is controlled to be noncontacting switch, small-sized solid structure cost and low, dependable performance, long service life.

Accompanying drawing and drawing explanation:

Fig. 1---operation principle schematic diagram of the present utility model.

The electrical schematic diagram of an embodiment of Fig. 2---the utility model.

Fig. 3---the electrical schematic diagram of another embodiment of the utility model.

Fig. 4---the utility model shell front view.

Fig. 5---the utility model shell side view.

Fig. 6---the utility model shell vertical view.

Wherein, 1---the three-phase alternating current signal acquisition circuit.

2---three tunnel voltage doubling rectifing circuits.

3---DC power-supply circuit.

4---AND.

5---non-contact switch circuit.

Below in conjunction with accompanying drawing the new shape of this practicality is described further.With reference to Fig. 1, Fig. 2, by the current transformer LH of three 1:500 ₁, LH ₂, LH ₃The three-phase alternating current signal acquisition circuit of forming 1 gets up to change into the three-phase alternating voltage signal with electromotor three-phase alternating current signals collecting, then respectively through capacitor C ₁, C ₂, C ₃Be sent to by capacitor C ₁, C ₄And diode D ₁, D ₄Resistance R ₂Constitute No. one voltage-doubler rectifier; Capacitor C ₂, C ₅Diode D ₂, D ₅Resistance R ₃Constitute No. two voltage-doubler rectifiers; Capacitor C ₃, C ₆Diode D ₃, D ₆, resistance R ₄Constitute three tunnel voltage doubling rectifing circuits 2 that No. three voltage-doubler rectifiers are formed, by its with the three-phase alternating voltage signal respectively rectification boost, become three road DC voltages.This three road DC voltage can play two kinds of effects: the one, and respectively through D ₄, D ₅, D ₆Be sent to by IC ₁The IC of the AND of forming 4 ₁13,12,11 pin, as three input end signal voltages of AND 4; The 2nd, by diode D ₇, D ₈, D ₉, capacitor C ₇The DC power-supply circuit formed 3 is combined into one with it, gives IC in the AND 2 ₁14 pin dc source is provided.By IC ₁The task of the AND of forming 4 is with IC ₁Three voltage signals of 13,12,11 pin inputs carry out analyzing and processing through IC ₁10 pin output, through R ₁Be transported to by triode BG ₁, rectifier bridge Q ₁, resistance R ₁BG in the non-contact switch circuit of forming 5 ₁

Base stage, thereby control the triode saturation conduction or end shutoff, can realize like this when the motor three-phase current all just often non-contact switch circuit 5 open conducting contactor actuating coil loop, non-contact switch circuit 5 is closed the purpose in contactor coil loop in the time of the phase shortage electricity.Q ₁Be a bridge rectifier, purpose is in order to be direct current with AC rectification.The used components and parts of this embodiment are seen the element detail list.

Fig. 3 is the electrical schematic diagram of another embodiment, with reference to Fig. 1, Fig. 2, Fig. 3, this embodiment first half and previous embodiment are identical, have only the switch element in the non-contact switch circuit 5 different with previous embodiment, and its switch element is selected a unidirectional controllable silicon S CR for use ₁, whole operation principle is identical with previous embodiment.The used components and parts of this embodiment are seen the element detail list.

The components and parts detail list

Title	The element code name	Specifications and models	Remarks
				Current transformer	LH	_7－3	1：500	Self-control
Capacitor	C ₇－6	63V／0.22uF
				Capacitor	C ₇	25V/100uF
Resistance	R ₇	0.5W/1K
				Resistance	R ₁－4	0.25W/20K
Integrated circuit	IC ₇	CD4073
				Diode	D ₇－9	1N4002
Rectifier bridge	Q ₇	3A/800V
				Triode	BG ₇	Bu806
Controllable silicon	SCR ₇	3A/800V

Claims

1, one by shell and three-phase alternating current signal acquisition circuit 1, three tunnel voltage doubling rectifing circuits 2; DC power-supply circuit 3; the open-phase protector for three phase motor that AND 4 and non-contact switch circuit 5 are formed; it is characterized in that: three-phase alternating current signal acquisition circuit 1 and three tunnel voltage doubling rectifing circuits 2 are joined; three inputs of three tunnel voltage doubling rectifing circuits 2 and DC power-supply circuit 3 and AND 4 join; the power end of DC power-supply circuit 3 and AND 4 joins, and the trigger end of AND 4 outputs and non-contact switch circuit 5 joins.

2, by the described open-phase protector for three phase motor of claim 1, the effect that it is characterized in that described three-phase alternating current signal acquisition circuit 1 is to gather the electromotor three-phase current signal and provide AC power to this machine.

3, by the described open-phase protector for three phase motor of claim 1, it is characterized in that described three tunnel voltage doubling rectifing circuits 2 are three independently voltage-doubler rectifiers, effect is the straight conversion of friendship and boosts.

4, by claim 1,3 described three tunnel voltage doubling rectifing circuits 2, it is characterized in that three road DC voltages that voltage multiplying rectifier produces are transported to three inputs of AND 4, carry the circuit of three-way direct current power supply simultaneously to DC power-supply circuit 3.

5, by the described open-phase protector for three phase motor of claim 1, it is characterized in that described DC power-supply circuit 3 is that three road DC voltages that voltage doubling rectifing circuit 2 is sent here are combined into the power end that one is transported to AND 4.

6, by the described open-phase protector for three phase motor of claim 1, it is characterized in that the major loop switch element in the described non-contact switch circuit 5 is to be served as by transistor, FET, controllable silicon, solid-state relay, Q1 establishes for rectification.