CN206773881U - A kind of hidden warning device - Google Patents

Abstract

The utility model belongs to security technology area, and in particular to a kind of hidden warning device.The seat board of hidden warning device is provided with circular hole, guide groove, groove and counterbore；Rotating shaft has been connected through a screw thread backrest through circular hole both ends；Torsion spring is cased with rotating shaft；Stock is fixed on flap through guide groove；Contiguous block is cased with the middle part of stock, quarter butt is fixed on connecting rod in through hole through spacing jump ring and positioning shaft shoulder；Quarter butt both ends are cased with upper joint sleeve；Piezoelectric vibrator is formed by metal substrate and uniform piezoelectric chip bonding, and the middle part of adjacent metal substrate is fixed together by holding in the mouth block；Electrical series between each piezoelectric vibrator, are connected via wires on accumulator；Trigger button connects on circuit boards through wire, and accumulator connects on circuit boards through wire.Warning device of the present utility model is embedded in seat, good concealment；Automatic generating structure is inside set, without installing battery and electric wire arrangement, work is convenient and reliable；It is simple to operate, it can complete alarm operation without both hands.

Description

A kind of hidden warning device

Technical field

The utility model belongs to security technology area, and in particular to a kind of hidden warning device.

Background technology

In recent years, had been reported that when bank/supermarket/jeweler's shop is plundered, patient hinders the crime cases such as doctor, aggrieved office worker, doctor Business personnel etc. are often taken post-event alarm by being limited in condition, are delayed security personnel and the optimal responding of the police and are chased opportunity, easily lead Cause the generation of heavy losses and injures and deaths event.The important office spaces such as usual bank, supermarket, jeweler's shop, hospital, it is assembled with each The antitheft, monitoring system of kind, to ensure property and personal safety；But conventional video monitoring center and telephone call help-asking system, The problems such as slow is positioned in the presence of alarm hysteresis, alarm, when generation is plundered, patient hinders the accidents such as doctor, victim's alarm hand Duan Danyi, the modes such as phone, mobile phone are only limitted to, dialing, telephone line transmission speed are slower, and alarm means are obvious, are easier to be beaten Disconnected to prevent, delayed alarm, cause any property loss even personal injury.In order to solve the above problems, there is provided one kind places hidden, work It is imperative to make reliable and stable early warning/warning device.

The content of the invention

The utility model purpose is to provide a kind of hidden warning device, victim is realized report under hidden state It is alert.The utility model use embodiment be：Seat board is provided with circular hole, guide groove, groove and counterbore；Rotating shaft passes through circular hole, turns Axle both ends have been connected through a screw thread backrest；Backrest is made up of arm rest and flap, and backrest can rotate around the axis；It is cased with turning round in rotating shaft Spring, torsion spring left end are stuck on groove, and torsion spring right-hand member is stuck on pin；Pin is fixed in the aperture in rotating shaft；Stock is passed through and led Groove is fixed on flap；Contiguous block is cased with the middle part of stock, contiguous block has connecting rod by rivet；Quarter butt is through spacing jump ring and determines The position shaft shoulder is fixed on connecting rod in through hole；Quarter butt both ends are cased with upper joint sleeve, and upper joint sleeve end is fixed by screws in quarter butt On；Piezoelectric vibrator is formed by metal substrate and uniform piezoelectric chip bonding, is flat under the nature before piezoelectric vibrator assembling It is changed into warp architecture after straight structure, installation, the radius of curvature of piezoelectric chip is less than the radius of curvature of metal substrate, piezoelectricity after installation Chip bears compression；The upper end of metal substrate is fixed on upper joint sleeve through screw, passes through rank in the middle part of adjacent metal substrate Block is fixed together, and the lower end of metal substrate is fixed on lower joint sleeve through screw；Electrical series between each piezoelectric vibrator, through leading Line is connected on accumulator；It is vertically connected with set to be enclosed on guide rod, is placed in the middle part of guide rod in chute；Guide rod right-hand member is consolidated by nut It is fixed；Cushion is fixed on seat board top；Sit pin and be fixed by screws in seat board bottom, sit pin in the position installation on the right side of seat board There is trigger button；Trigger button connects on circuit boards through wire, and accumulator connects on circuit boards through wire.

When the utility model normal work and the non-stress of backrest, connecting rod keeps balance under torsion spring and piezoelectric vibrator active force State, the compression that now piezoelectric chip is subject to should be the half of allowable value；User's back-resting is on backrest, arm rest stress The stock on flap is driven to turn over certain angle counterclockwise, connecting rod moves right under the drive of stock, the pressure on connecting rod Electric tachometer indicator compressive deformation, its compression amount are less than maximum allowable value；Backrest is under the active force of torsion spring and piezoelectric vibrator when not leaning on Reset；Electric energy caused by piezoelectric vibrator alternating dilatation is stored in accumulator after circuit board is handled；When user is stepped on pin During lower trigger button, trigger button closure, circuit board is connected to after pulse signal and sends alarm signal to console.

Characteristic and advantage：1. warning device is embedded in seat, good concealment；2. automatic generating structure is inside set, without installation Battery and electric wire arrangement, work are convenient and reliable；3. it is simple to operate, it can complete alarm operation without both hands；4. piezoelectric vibrator is pre- Curved assembling is subjected only to compression, and stress distribution is uniform, generating capacity is strong.

Brief description of the drawings

Fig. 1 is the structural representation of hidden warning device in one preferred embodiment of the utility model；

Fig. 2 is Fig. 1 A-A sectional views；

Fig. 3 is Fig. 1 front view；

Fig. 4 is the structural representation of seat board in one preferred embodiment of the utility model；

Fig. 5 is Fig. 4 left view；

Fig. 6 is the structural representation of piezoelectric vibrator in one preferred embodiment of the utility model；

Fig. 7 is Fig. 6 top view；

Embodiment：

Seat board 1 is provided with circular hole 101, guide groove 102, groove 103 and counterbore 104；Rotating shaft a2 passes through circular hole 101, rotating shaft a2 Both ends have been bolted backrest 2；Backrest 2 is made up of arm rest 201 and flap 202, and backrest 2 a2 can rotate around the shaft；Rotating shaft Torsion spring S is cased with a2, torsion spring S left ends are stuck on groove 103, and torsion spring S right-hand members are stuck on pin X；Pin X is fixed on rotating shaft a2 Aperture in；Stock a1 is fixed on flap 202 through guide groove 102；Contiguous block 3 is cased with the middle part of stock a1, contiguous block 3 passes through riveting The riveting of nail 301 has connecting rod 5；Quarter butt 4 is fixed on connecting rod 5 in through hole through spacing jump ring 401 and positioning shaft shoulder；The both ends of quarter butt 4 cover There is upper joint sleeve 402, the end of upper joint sleeve 402 is fixed by screws on quarter butt 4；Piezoelectric vibrator I is by metal substrate m and uniformly Piezoelectric chip p bonding form, piezoelectric vibrator I assembling before nature under for flat construction, installation after be changed into warp architecture, Radius of curvature of the piezoelectric chip p radius of curvature less than metal substrate m, piezoelectric chip p bear compression after installation；Metal substrate M upper end is fixed on upper joint sleeve 402 through screw, and adjacent metal substrate m middle part is fixed together by holding in the mouth block 6, metal Substrate m lower end is fixed on lower joint sleeve 7 through screw；Electrical series between each piezoelectric vibrator I, are connected via wires to accumulator On B；It is vertically connected with set 7 to be enclosed on guide rod a3, is placed in the middle part of guide rod a3 in chute 302；Guide rod a3 right-hand members are fixed by nut 8； Cushion 9 is fixed on the top of seat board 1；Sit pin 10 and be fixed by screws in the bottom of seat board 1, sit pin 10 close to the position on the right side of seat board 1 Put and trigger button 11 is installed；Trigger button 11 is connected on circuit board C through wire, and accumulator B is connected to circuit board C through wire On.

When the utility model normal work and 2 non-stress of backrest, connecting rod 5 is kept under torsion spring S and piezoelectric vibrator I active forces Poised state, the compression that now piezoelectric chip p is subject to should be the half of allowable value；User's back-resting is leaned on backrest 2 Stock a1 on the forced belt turn plate 202 of arm 201 turns over certain angle counterclockwise, and connecting rod 5 moves right under stock a1 drive Dynamic, the piezoelectric vibrator I compressive deformations on connecting rod 5, its compression amount is less than maximum allowable value；Backrest 2 is in torsion spring S when not leaning on Resetted with piezoelectric vibrator I active force；Electric energy caused by piezoelectric vibrator I alternating dilatations is stored in after circuit board C processing In accumulator B；When user steps on trigger button 11 with pin, trigger button 11 closes, and it is backward that circuit board C is connected to pulse signal Console sends alarm signal.

Claims (1)

1. A kind of 1. hidden warning device, it is characterised in that：Seat board is provided with circular hole, guide groove, groove and counterbore；Rotating shaft passes through circle Hole, rotating shaft both ends have been connected through a screw thread backrest；Backrest is made up of arm rest and flap, and backrest can rotate around the axis；Covered in rotating shaft There is torsion spring, torsion spring left end is stuck on groove, and torsion spring right-hand member is stuck on pin；Pin is fixed in the aperture in rotating shaft；Stock is worn Guide groove is crossed to be fixed on flap；Contiguous block is cased with the middle part of stock, contiguous block has connecting rod by rivet；Quarter butt is through spacing jump ring It is fixed on positioning shaft shoulder on connecting rod in through hole；Quarter butt both ends are cased with upper joint sleeve, and upper joint sleeve end is fixed by screws in On quarter butt；Piezoelectric vibrator is formed by metal substrate and uniform piezoelectric chip bonding, under the nature before piezoelectric vibrator assembling For flat construction, installation after be changed into warp architecture, after installation the radius of curvature of piezoelectric chip be less than metal substrate radius of curvature, Piezoelectric chip bears compression；The upper end of metal substrate is fixed on upper joint sleeve through screw, and the middle part of adjacent metal substrate leads to Cross rank block to be fixed together, the lower end of metal substrate is fixed on lower joint sleeve through screw；Electrical series between each piezoelectric vibrator, It is connected via wires on accumulator；It is vertically connected with set to be enclosed on guide rod, is placed in the middle part of guide rod in chute；Guide rod right-hand member passes through nut It is fixed；Cushion is fixed on seat board top；Sit pin and be fixed by screws in seat board bottom, sit pin in the position peace on the right side of seat board Equipped with trigger button；Trigger button connects on circuit boards through wire, and accumulator connects on circuit boards through wire.