CN108608483A

CN108608483A - A kind of bench saw of protection personal safety

Info

Publication number: CN108608483A
Application number: CN201810456539.6A
Authority: CN
Inventors: 徐桂娣
Original assignee: Individual
Current assignee: Wang Dazeng
Priority date: 2018-05-14
Filing date: 2018-05-14
Publication date: 2018-10-02

Abstract

The invention belongs to bench saw technical fields; more particularly to a kind of bench saw of protection personal safety; it includes bench saw shell, controller, ring-like saw blade, motor, driving wheel, the first U-shaped board, the first swing rod, arc-shaped guide rail, telescopic rod, belt, driven wheel etc.; after wherein triggering gunpowder fires; ring set moment moves to the direction of the first U-shaped board, so that annular blade is far from hand and completely into in mechanism chamber；During ring set is moved to the first U-shaped board direction, the first limiting tooth and the second limiting tooth generate limit, and ring-like saw blade moment stops rotating；Ring-like saw blade stops rotating, and annular blade is reduced by hand and further contacts injury risk caused by ring-like saw blade in this way far from hand and completely into in mechanism chamber.In addition during driven wheel is moved to the direction moment of corner block, belt can gradually fluff, and avoid driven wheel after transmission still so that the possibility of annular blade rotation, more protects the safety of user.

Description

A kind of bench saw of protection personal safety

Technical field

The invention belongs to bench saw technical field more particularly to a kind of bench saws of protection personal safety.

Background technology

At present for traditional bench saw, user needs carefully to cut cut material using bench saw；But it is using The case where cut wound hand can occur during person's use or because of accident.It is cut because of unexpected in order to avoid user Wound, it is but the saw blade sawed in hot dog for protection user to have a kind of special design of hot dog saw in present technology During being stopped within the extremely short time to protect user, saw blade is limited by rigid moment；In saw blade Repeatedly by rigid limit when rapidly stopping, the teeth on saw blade are easy to be collided and damaged by rigid limit；Tradition heat simultaneously The saw blade of dog saw is returned to buck desktop approach below under emergency case, and dependence is that the angular momentum of saw blade is realized；It is logical Mechanism reliability of operation can be ensured by crossing increase saw blade and being returned to buck desktop approach below；In addition to preventing saw blade quilt Rigid limit is collided and is damaged, so just needing to design a kind of safe bench saw that can protect saw blade.

The present invention design it is a kind of protection personal safety bench saw solve the problems, such as it is as above.

Invention content

To solve the defect in the prior art, the present invention discloses a kind of bench saw of protection personal safety, it is to use Following technical scheme is realized.

A kind of bench saw of protection personal safety, it is characterised in that：It includes bench saw shell, controller, ring-like saw blade, mechanism Chamber, motor, driving wheel, the first U-shaped board, the first swing rod, arc-shaped guide rail, corner block, telescopic rod, drive shaft, belt, driven wheel, Ring set, the first axle sleeve, third swing rod, limit shaft, limit shaft sleeve, the first limiting tooth, the second limiting tooth, drive ring, driven shaft, Two U-shaped boards, arc guide block, the first spring, third U-shaped board, the second swing rod, straight guide, link block, straight guide block, second spring, company Bar, the 4th U-shaped board, executing agency are wherein equipped with controller on the epivalve of bench saw shell；There is mechanism chamber in bench saw shell；It holds Row mechanism is mounted on the top surface of mechanism chamber；Straight guide is mounted on mechanism chamber side；Straight guide block is mounted in straight guide；Second One end of spring is mounted on straight guide block, and the other end is mounted on the medial surface of straight guide；Second spring is located in straight guide；Directly Guide block is slided on by second spring in straight guide；One end of link block is mounted on straight guide block, and the other end is equipped with arc and leads Rail；Arc guide block is mounted in arc-shaped guide rail；One end of first spring is mounted on arc guide block, and the other end is led mounted on arc On the medial surface of rail；First spring is located in arc-shaped guide rail；Arc guide block is by the first spring slide in arc-shaped guide rail；Limit One end of axis is mounted on arc-shaped guide rail, and the other end is equipped with limit shaft sleeve；Pacify along circumferential direction on the periphery of limit shaft sleeve There are two the first limiting tooths for dress.

Corner block and the first U-shaped board are mounted on the bottom surface of mechanism chamber；Pacified by hinged mode one end of first swing rod In the first U-shaped board, the other end is equipped with third U-shaped board；One end of telescopic rod is mounted on the inclined-plane of corner block, the other end On the side of third U-shaped board；Third U-shaped board is equipped with the 4th U-shaped board on the side far from telescopic rod；One end of connecting rod It is mounted in the 4th U-shaped board by hinged mode, the other end is matched with executing agency.

One end of driven shaft is equipped with driven wheel, and the other end is equipped with the first axle sleeve；It is installed on the periphery of first axle sleeve There are the second U-shaped board and third swing rod；Third swing rod is located at the upside of the second U-shaped board；Motor is mounted on the side of mechanism chamber；Peace Mechanism chamber side equipped with straight guide is opposite with the mechanism chamber side of motor is equipped with；Motor position is close to the bottom surface of mechanism chamber； First U-shaped board is between motor and corner block；One end that third swing rod is not connected with the first axle sleeve is matched with executing agency；The One end of two swing rods is mounted on by hinged mode in third U-shaped board, and the other end is U-shaped mounted on second by hinged mode In plate；One end of drive shaft is connected with motor shaft, and the other end is equipped with driving wheel；Belt is mounted on driving wheel and driven wheel On periphery.

One end of drive ring is mounted on side of the driven wheel far from the first axle sleeve, and the other end is equipped with ring set；Ring set Multiple second limiting tooths are equably installed along circumferential direction on inner headed face；Limit shaft sleeve is located in ring set；First limiting tooth with Second limiting tooth matches；Ring-like saw blade is installed on the periphery of ring set；Annular blade passes through the epivalve of bench saw shell.

The executing agency include the first wobble plate, fixed block, sliding groove, guide groove, third limiting tooth, sliding block, third guide block, Third spring, the 5th U-shaped board, leaf spring, the second wobble plate, the 4th limiting tooth, hinged groove, pin, notch, wherein fixed block are mounted on machine On the top surface of structure chamber；It is provided with sliding groove on the lower face of fixed block；It symmetrically opens there are two guide groove the both sides of sliding groove；Positioned at cunning On the fixed block lower face of dynamic slot both sides, multiple third limiting tooths are equably installed along sliding groove length direction respectively；Sliding block In sliding groove；It symmetrically installs there are two third guide block the both sides of sliding block；Sliding block is opened on the side of the first axle sleeve There is hinged groove；Two third guide blocks are located in two guide grooves；One end of two third springs is separately mounted to two thirds On guide block, the other end is separately mounted on the side of respective guide slots；Two third springs are located in corresponding guide groove；Third Guide block is by third spring slide in guide groove；Sliding block slides in sliding groove；It is U-shaped it to be equipped with the 5th on the lower face of sliding block Plate；The both ends of pin both pass through the 5th U-shaped board；It symmetrically installs there are two the second wobble plate at the both ends of pin；Each the second wobble plate Upper face upper edge the second wobble plate length direction is uniformly equipped with multiple 4th limiting tooths, and the tooth height of the 4th limiting tooth is towards the 5th The direction of U-shaped board uniformly reduces successively；One end of first wobble plate is mounted on the periphery of pin, and the other end is provided with notch；First One end of wobble plate connecting pin is located in the 5th U-shaped board；One end of leaf spring is mounted on sliding block, and the other end is mounted on the first wobble plate On；One end that third swing rod is not connected with the first axle sleeve is mounted on by hinged mode in hinged groove；Connecting rod the not connected 4th is U-shaped One end of plate is mounted on by hinged mode in the notch of the first wobble plate.

The third limiting tooth is matched with the 4th limiting tooth；The telescopic rod is made of flexible housing and flexible interior bar； There is flexible slide opening in flexible housing；One end of flexible interior bar is located in flexible slide opening, and the other end is connected with third U-shaped board； Flexible interior bar slides in flexible slide opening；One end that flexible interior bar is located at flexible slide opening is named as fire between flexible slide opening bottom surface Medicine cavity.

As being further improved for this technology, the described one end of first limiting tooth far from limit shaft sleeve has fillet.

As being further improved for this technology, the one end of second limiting tooth far from limit ring set has fillet.

As being further improved for this technology, equipped with triggering gunpowder in the gunpowder chamber.

As being further improved for this technology, when the non-explosion time of triggering gunpowder in gunpowder chamber, telescopic rod and the first swing rod It is perpendicular；First swing rod and the second swing rod are conllinear.

As being further improved for this technology, the third swing rod is named as A points with the point that sliding block is hinged；Arc-shaped guide rail Place central point is overlapped with A points.

As being further improved for this technology, the triggering gunpowder and motor are controlled by controller.

As being further improved for this technology, the leaf spring is in compressive state always.

As being further improved for this technology, when the non-explosion time of triggering gunpowder in gunpowder chamber, the 4th limiting tooth is located at phase In gap between two adjacent third limiting tooths.

Third swing rod is named as A points with the point that sliding block is hinged in the present invention, and central point where arc-shaped guide rail is overlapped with A points Design be, when arc guide block is moved along arc-shaped guide rail to the first spring direction, third swing rod limitation swing under, Arc guide block will do arcuate movement using A points as the center of circle.

Motor drives driving wheel rotation by drive shaft；Driving wheel drives driven wheel rotation through belt；Driven wheel is through driving Annulus moving ring sleeve rotates；Second limiting tooth follows ring set to rotate；Ring set drives ring-like saw blade rotation.

When triggering gunpowder explosion in the present invention, interior bar of stretching is moved to the direction far from corner block, and interior bar of stretching pushes the Three U-shaped boards are moved to the direction far from corner block, and then third U-shaped board drives the first swing rod to be put to the direction far from corner block It is dynamic.The non-explosion time of triggering gunpowder in gunpowder chamber, telescopic rod and the first swing rod are perpendicular, and the first swing rod and the second swing rod are conllinear； Second swing rod is connect by the second U-shaped board with the first axle sleeve, and third swing rod is mounted on the first axle sleeve periphery；So work as triggering The non-explosion time of gunpowder, and when the first axle sleeve is not moved to triangle Block direction, first axle is sleeved on the branch of third swing rod and the second swing rod It is limited under support.The telescopic rod design perpendicular with the first swing rod is that one side telescopic rod can preferably support the first pendulum Bar；On the other hand it is that, when triggering gunpowder explosion, under the impact of triggering gunpowder, flexible interior bar can preferably make the first pendulum Bar generates bigger swing.First axle sleeve is fixedly mounted on driven shaft, and driven shaft can not generate rotation；Driven wheel can enclose Axis around driven shaft rotates.

The matched effect of first limiting tooth and the second limiting tooth is：It is opposite when ring set is moved to triangle Block direction First limiting tooth is inserted into the gap of two adjacent the second limiting tooths, and such first limiting tooth limits the second limiting tooth Position, so that the second limiting tooth can not rotate, final ring set can not also generate rotation.First limiting tooth is far from limit shaft sleeve There is fillet, the one end of the second limiting tooth far from limit ring set there is the design of fillet to be for one end so that the first limiting tooth can To be preferably inserted into the gap of two adjacent the second limiting tooths.

Limit shaft is fixed on arc guide block, and limit shaft sleeve is fixed on limit shaft and limit shaft sleeve not will produce rotation.

Weak current is connected in the present invention on ring-like saw blade, trigger gunpowder and motor is by the principle that controller controls： When hand touches ring-like saw blade in a flash, the relatively large capacitance of inside of human body will change electric signal, and identifier is by electric signal Controller is passed to, after controller analyzes electric signal, motor is then controlled and stops, and control triggering gunpowder and fire.

The first spring can be such that the movement of arc guide block resets in the present invention；Straight guide block can drive arc-shaped guide rail through link block It is moved to second spring direction；Second spring can be such that straight guide block movement resets.

The design of connecting rod is that connecting rod can follow third U-shaped board to move, and connecting rod can drive the first wobble plate around pin Axis oscillating.

For executing agency：Two third guide blocks can ensure that sliding block slides in sliding groove；Third spring can make The movement of three guide blocks resets；Second wobble plate and the first wobble plate are each attached on pin, and the first wobble plate, which can be sold, drives the second wobble plate pendulum It is dynamic；Leaf spring can be such that the movement of the first wobble plate resets.

The matched effect of third limiting tooth and the 4th limiting tooth is：When the 4th limiting tooth is inserted into two adjacent thirds In the gap of limiting tooth, and then the 4th limiting tooth generates position-limiting action with third limiting tooth；When the 4th limiting tooth is from adjacent two After the gap of a third limiting tooth is detached from, the 4th limiting tooth can not position-limiting action with third limiting tooth.

The effect in compressive state is leaf spring always in the present invention：When the triggering non-explosion time of gunpowder, always due to leaf spring In compressive state, so there are one the swing trend to separate sliding block direction always for the first wobble plate, and then the first wobble plate makes There are one the trend swung to sliding block direction always for second wobble plate；This ensures that the 4th limiting tooth is inserted into adjacent two In the gap of third limiting tooth, and then the 4th limiting tooth generates position-limiting action with third limiting tooth.

The design that the direction of tooth height towards the 5th U-shaped board of 4th limiting tooth uniformly reduces successively is：When the second wobble plate is enclosed When around the axis oscillating of pin, smaller, closer from pin in this way the 4th limiting tooth of amplitude that fourth limiting tooth closer from pin is swung Tooth height more it is low can by a small margin swing under preferably be in and out of in the gap of two adjacent third limiting tooths so that the 4th Limiting tooth preferably generates matching relationship with third limiting tooth.

When bench saw works normally, the triggering gunpowder in gunpowder chamber does not explode, and telescopic rod and the first swing rod are perpendicular；First Swing rod and the second swing rod are conllinear.First limiting tooth and the second limiting tooth do not generate position-limiting action.Leaf spring is in compressive state, and the 4th In gap of the limiting tooth between two adjacent third limiting tooths, third limiting tooth and the 4th limiting tooth generate limit and make With the second wobble plate and the 5th U-shaped board are limited, and then sliding block can not slide in sliding groove.Motor through drive shaft, driving wheel and Belt drives driven wheel rotation；Driven wheel drives ring-like saw blade rotary work through drive ring and ring set.

When the hand of user touches annular blade in a flash, the relatively large capacitance of inside of human body will change telecommunications Number, electric signal is passed to controller by identifier, after controller analyzes electric signal, is then controlled motor and is stopped, and control triggering Gunpowder fires.After motor stops, driving wheel stops rotating, but under the rotatory inertia of ring-like saw blade and ring set, annular blade It will not immediately stop rotating.After triggering gunpowder moment fires, interior bar moment of stretching moves to the direction far from corner block, stretches Interior bar moment pushes third U-shaped board to be moved to the direction far from corner block, and then third U-shaped board moment drives the first swing rod to remote Direction from corner block is swung, and third U-shaped board moment drives the second swing rod to be swung to the direction far from corner block.Connecting rod follows Three U-shaped board moments to far from corner block direction swing, connecting rod moment push the first wobble plate to sliding block direction swing, leaf spring by after Continuous compression, the first wobble plate, which is sold, drove for the second wobble plate moment swung to far from sliding block direction, and the 4th limiting tooth moment is from positioned at phase It being detached from gap between two adjacent third limiting tooths, the 4th limiting tooth no longer generates position-limiting action with third limiting tooth, into And sliding block is no longer limited.During swinging the second swing rod moment, the second swing rod can pull first through the second U-shaped board moment Axle sleeve is moved to the direction of the first U-shaped board.It is considered as to the movement of the direction of the first U-shaped board by two kinds of movement structures in the first axle sleeve At, one is that the first axle sleeve is moved to the direction of corner block, the other is the first axle sleeve is moved to fixed Block direction.

In direction moving process of first axle sleeve to corner block, the first axle sleeve again through driven shaft, driven wheel, drive ring and Ring set moment pulls ring-like saw blade to be moved to the direction of corner block.During ring set is moved to the direction moment of corner block, The first opposite limiting tooth is inserted into the gap of two adjacent the second limiting tooths, and the first limiting tooth limits the second limiting tooth Position, so that the second limiting tooth can not rotate, final ring set moment stops rotating.Ring-like saw blade moment stops rotating at this time, Then in the case where the angular momentum of ring-like saw blade drives, ring-like saw blade can there are one the trend returned in mechanism chamber.In ring set to triangle Under the double action that the direction moment movement of block and ring-like saw blade angular momentum drive, ring set is limited through the first limiting tooth and second Tooth drives the movement of limit shaft sleeve moment to the direction moment of corner block；Limit shaft sleeve drives arc guide block moment to three through limit shaft The direction moment of hornblock moves；First spring is compressed；Ring-like saw blade stretch out part moment of bench saw shell epivalve completely into Into mechanism chamber, it is reduced by hand in this way and further contacts injury risk caused by ring-like saw blade.The first axle sleeve is followed in driven wheel During being moved to the direction moment of corner block, driven the distance between the driving wheel that takes turns to will be gradually reduced, and then belt is just It can be in relaxed state, avoid and still drive driven wheel rotation through driving wheel and belt in the case where motor is out of control, and then avoid Driven wheel is after transmission still so that the possibility of annular blade rotation, more protects the safety of user.

In the first axle sleeve into fixed Block direction moving process, the first axle sleeve pushes sliding block to far from first through third swing rod The direction of axle sleeve is slided, and sliding block drives third guide block to be slided to the direction far from the first axle sleeve, and third spring is compressed.First For axle sleeve into fixed Block direction moving process, the first axle sleeve drives saw blade to fixation through driven shaft, driven wheel, drive ring and ring set Block direction moves, and ring set drives arc guide block to fixed block side through the first limiting tooth, the second limiting tooth, limit shaft sleeve and limit shaft To movement, and then arc guide block drives arc-shaped guide rail to fixed Block direction movement, and arc-shaped guide rail is through link block and straight guide block to admittedly Determine Block direction movement, second spring is compressed.The design that annular blade is moved to fixed Block direction is so that user just connects When touching ring-like saw blade, annular blade can ensure that ring-like saw blade far from hand, more protects hand, more to fixed Block direction movement Hand is avoided by cut wound.

The above, after gunpowder explosion, after ring-like saw blade moment stops rotating, ring set can be to the direction of the first U-shaped board It is mobile, so that annular blade is reduced by hand and further contacts ring-like saw in this way far from hand and completely into in mechanism chamber Injury risk caused by piece.In addition ring-like saw blade is mounted on the periphery of ring set in the present invention, and the moment of ring-like saw blade stops Spin-ended turn is that the cooperation of the second limiting tooth and the first limiting tooth on the ring set is limited, and avoids saw blade in traditional bench saw It is stopped rotating by rigid limit and is damaged caused by saw blade, substantially reduce the replacement number of saw blade, extend the use of saw blade Service life.

User can will recharge triggering gunpowder in gunpowder chamber, and by telescopic rod, the first swing rod and the second swing rod It is restored to home position, and then the first axle sleeve also returns to home position；Under the reset response of the first spring, arc guide block is extensive Home position is arrived again.During arc guide block and the first axle sleeve restore, the first limiting tooth and the second limiting tooth are detached from and limit Relationship, driven wheel and ring set are restored to home position, and ring-like saw blade stretches out bench saw shell epivalve again；Limit shaft sleeve follows arc Guide block is restored to home position.Under second spring reset response, straight guide block and arc-shaped guide rail are restored to home position.In third Under the reset response of spring, third guide block is moved to home position, and then third guide block band movable slider is moved to home position. Under the reset force of leaf spring, third limiting tooth is mutually limited with the 4th limiting tooth again.

Relative to traditional bench saw technology, after triggering gunpowder fires in the present invention, ring set moment is to the direction of the first U-shaped board It is mobile, so that annular blade is far from hand and completely into in mechanism chamber；In the mistake that ring set is moved to the first U-shaped board direction Cheng Zhong, the first limiting tooth and the second limiting tooth generate limit, and ring-like saw blade moment stops rotating；Ring-like saw blade stops rotating, and Annular blade is reduced by caused by hand further contacts ring-like saw blade far from hand and completely into in mechanism chamber and injures wind in this way Danger.In addition driven wheel to the direction moment of corner block move in, belt can gradually fluff, avoid driven wheel after transmission according to So so that the possibility of annular blade rotation, more protects the safety of user.The configuration of the present invention is simple has preferable peace Complete and using effect.

Description of the drawings

Fig. 1 is bench saw overall schematic.

Fig. 2 is bench saw integral perspective schematic diagram.

Fig. 3 is bench saw entirety section（One）Schematic diagram.

Fig. 4 is bench saw entirety section（Two）Schematic diagram.

Fig. 5 is ring-like saw blade scheme of installation.

Fig. 6 is the first limiting tooth and the second limiting tooth cooperation schematic diagram.

Fig. 7 is the second limiting tooth scheme of installation.

Fig. 8 is the first axle sleeve scheme of installation.

Fig. 9 is belt scheme of installation.

Figure 10 is the first limiting tooth scheme of installation.

Figure 11 is link block scheme of installation.

Figure 12 is the second swing rod scheme of installation.

Figure 13 is telescopic rod scheme of installation.

Figure 14 is gunpowder chamber perspective diagram.

Figure 15 is third limiting tooth scheme of installation.

Figure 16 is leaf spring scheme of installation.

Figure 17 is the 5th U-shaped board scheme of installation.

Figure 18 is the 4th limiting tooth scheme of installation.

Figure 19 is that executing agency's section is faced（One）Schematic diagram.

Figure 20 is that executing agency's section is faced（Two）Schematic diagram.

Figure label title：1, bench saw shell；2, controller；3, ring-like saw blade；4, mechanism chamber；5, motor；6, driving wheel；7、 First U-shaped board；8, the first swing rod；9, arc-shaped guide rail；10, corner block；12, telescopic rod；14, drive shaft；15, belt；16, driven Wheel；17, ring set；18, the first axle sleeve；19, third swing rod；20, limit shaft；21, limit shaft sleeve；22, the first limiting tooth；23, circle Angle；24, the second limiting tooth；25, drive ring；26, driven shaft；27, the second U-shaped board；28, arc guide block；29, the first spring；30、 Third U-shaped board；31, the second swing rod；32, flexible interior bar；33, stretch housing；34, stretch slide opening；35, gunpowder chamber；40, it directly leads Rail；41, link block；42, straight guide block；43, second spring；44, connecting rod；45, the 4th U-shaped board；46, executing agency；47, the first pendulum Plate；48, fixed block；49, sliding groove；50, guide groove；51, third limiting tooth；52, sliding block；53, third guide block；54, third spring； 55, the 5th U-shaped board；56, leaf spring；57, the second wobble plate；58, the 4th limiting tooth；59, hinged groove；60, it sells；61, notch.

Specific implementation mode

As shown in Figure 1, 2, it includes bench saw shell 1, controller 2, ring-like saw blade 3, mechanism chamber 4, motor 5, driving wheel 6, One U-shaped board 7, the first swing rod 8, arc-shaped guide rail 9, corner block 10, telescopic rod 12, drive shaft 14, belt 15, driven wheel 16, ring set 17, the first axle sleeve 18, third swing rod 19, limit shaft 20, limit shaft sleeve 21, the first limiting tooth 22, the second limiting tooth 24, drive ring 25, driven shaft 26, the second U-shaped board 27, arc guide block 28, the first spring 29, third U-shaped board 30, the second swing rod 31, straight guide 40, link block 41, straight guide block 42, second spring 43, connecting rod 44, the 4th U-shaped board 45, executing agency 46, as shown in Figure 1, wherein Controller 2 is installed on the epivalve of bench saw shell 1；As shown in Figure 3,4, there is mechanism chamber 4 in bench saw shell 1；Executing agency 46 is pacified On the top surface of mechanism chamber 4；Straight guide 40 is mounted on 4 side of mechanism chamber；Straight guide block 42 is mounted in straight guide 40；Such as figure 3, shown in 11, one end of second spring 43 is mounted on straight guide block 42, and the other end is mounted on the medial surface of straight guide 40；Second Spring 43 is located in straight guide 40；Straight guide block 42 is slided on by second spring 43 in straight guide 40；Pacify one end of link block 41 On straight guide block 42, the other end is equipped with arc-shaped guide rail 9；As shown in Fig. 5,10, arc guide block 28 is mounted on arc-shaped guide rail 9 In；One end of first spring 29 is mounted on arc guide block 28, and the other end is mounted on the medial surface of arc-shaped guide rail 9；First bullet Spring 29 is located in arc-shaped guide rail 9；Arc guide block 28 is slided on by the first spring 29 in arc-shaped guide rail 9；One end of limit shaft 20 On arc-shaped guide rail 9, the other end is equipped with limit shaft sleeve 21；It is equipped with along circumferential direction on the periphery of limit shaft sleeve 21 Two the first limiting tooths 22.

As shown in Figure 3,4, corner block 10 and the first U-shaped board 7 are mounted on the bottom surface of mechanism chamber 4；As shown in Figure 12,13, One end of first swing rod 8 is mounted on by hinged mode in the first U-shaped board 7, and the other end is equipped with third U-shaped board 30；It is flexible One end of bar 12 is mounted on the inclined-plane of corner block 10, and the other end is mounted on the side of third U-shaped board 30；Third U-shaped board 30 The 4th U-shaped board 45 is installed on side far from telescopic rod 12；One end of connecting rod 44 is U-shaped mounted on the 4th by hinged mode In plate 45, the other end is matched with executing agency 46.

As shown in figure 8, one end of driven shaft 26 is equipped with driven wheel 16, the other end is equipped with the first axle sleeve 18；First axle Second U-shaped board 27 and third swing rod 19 are installed on the periphery of set 18；Third swing rod 19 is located at the upside of the second U-shaped board 27； As shown in Fig. 3,5, motor 5 is mounted on the side of mechanism chamber 4；4 side of mechanism chamber of straight guide 40 is installed and electricity is installed 4 side of mechanism chamber of machine 5 is opposite；Motor 5 is located proximate to the bottom surface of mechanism chamber 4；First U-shaped board 7 is located at motor 5 and corner block 10 Between；As shown in Figure 12,13, one end of not connected first axle sleeve 18 of third swing rod 19 is matched with executing agency 46；Second pendulum One end of bar 31 is mounted on by hinged mode in third U-shaped board 30, and the other end is U-shaped mounted on second by hinged mode In plate 27；As shown in figure 9, one end of drive shaft 14 is connected with 5 axis of motor, the other end is equipped with driving wheel 6；Belt 15 is installed On the periphery of driving wheel 6 and driven wheel 16.

As shown in Figure 7,8, one end of drive ring 25 is mounted on side of the driven wheel 16 far from the first axle sleeve 18, the other end Ring set 17 is installed；Multiple second limiting tooths 24 are equably installed along circumferential direction on the inner headed face of ring set 17；Such as Fig. 6 institutes Show, limit shaft sleeve 21 is located in ring set 17；First limiting tooth 22 is matched with the second limiting tooth 24；As shown in Figure 4,5, ring set 17 Periphery on ring-like saw blade 3 is installed；Annular blade passes through the epivalve of bench saw shell 1.

As shown in figure 19, the executing agency 46 includes the first wobble plate 47, fixed block 48, sliding groove 49, guide groove 50, third Limiting tooth 51, sliding block 52, third guide block 53, third spring 54, the 5th U-shaped board 55, leaf spring 56, the limit of the second wobble plate the 57, the 4th Tooth 58, hinged groove 59, pin 60, notch 61, as shown in Fig. 3,15, wherein fixed block 48 is mounted on the top surface of mechanism chamber 4；It is fixed Sliding groove 49 is provided on the lower face of block 48；It symmetrically opens there are two guide groove 50 both sides of sliding groove 49；Positioned at 49 liang of sliding groove On 48 lower face of fixed block of side, multiple third limiting tooths 51 are equably installed along 49 length direction of sliding groove respectively；Such as figure 17, shown in 19, sliding block 52 is mounted in sliding groove 49；It symmetrically installs there are two third guide block 53 both sides of sliding block 52；Sliding block 52 are provided with hinged groove 59 on the side of the first axle sleeve 18；As shown in Figure 17,20, two third guide blocks 53 are located at two In guide groove 50；One end of two third springs 54 is separately mounted on two third guide blocks 53, and the other end is separately mounted to accordingly On the side of guide groove 50；Two third springs 54 are located in corresponding guide groove 50；Third guide block 53 passes through third spring 54 It slides in guide groove 50；Sliding block 52 slides in sliding groove 49；As shown in figure 17, the 5th U is installed on the lower face of sliding block 52 Template 55；As shown in Figure 16,18, the both ends of pin 60 both pass through the 5th U-shaped board 55；The both ends of pin 60 symmetrically install that there are two the Two wobble plates 57；57 length direction of the second wobble plate of upper face upper edge of each the second wobble plate 57 is uniformly equipped with multiple 4th limits Position tooth 58, and the tooth height of the 4th limiting tooth 58 uniformly reduces successively towards the direction of the 5th U-shaped board 55；Pacify one end of first wobble plate 47 On the periphery of pin 60, the other end is provided with notch 61；One end of first wobble plate, 47 connecting pin 60 is located at the 5th U-shaped board 55 In；One end of leaf spring 56 is mounted on sliding block 52, and the other end is mounted in the first wobble plate 47；As shown in Fig. 8,17, third swing rod One end of 19 not connected first axle sleeves 18 is mounted on by hinged mode in hinged groove 59；As shown in Figure 13,18, connecting rod 44 is not The one end for connecting the 4th U-shaped board 45 is mounted on by hinged mode in the notch 61 of the first wobble plate 47.

As shown in figure 19, the third limiting tooth 51 is matched with the 4th limiting tooth 58；As shown in figure 14, the telescopic rod 12 are made of flexible housing 33 and flexible interior bar 32；There is flexible slide opening 34 in flexible housing 33；One end position of flexible interior bar 32 In flexible slide opening 34, the other end is connected with third U-shaped board 30；Flexible interior bar 32 slides in flexible slide opening 34；In flexible One end that bar 32 is located at flexible slide opening 34 is named as gunpowder chamber 35 between flexible 34 bottom surface of slide opening.

As shown in Figure 10, the described one end of first limiting tooth 22 far from limit shaft sleeve 21 has fillet 23.

As shown in fig. 7, the one end of second limiting tooth 24 far from limit ring set 17 has fillet 23.

As being further improved for this technology, equipped with triggering gunpowder in the gunpowder chamber 35.

As shown in Figure 12,13, when the non-explosion time of triggering gunpowder in gunpowder chamber 35, telescopic rod 12 hangs down with 8 phase of the first swing rod Directly；First swing rod 8 and the second swing rod 31 are conllinear.

The third swing rod 19 is named as A points with the point that sliding block 52 is hinged；9 place central point of arc-shaped guide rail and A point weights It closes.

The triggering gunpowder and motor 5 are controlled by controller 2.

The leaf spring 56 is in compressive state always.

When the non-explosion time of triggering gunpowder in gunpowder chamber 35, the 4th limiting tooth 58 is located at two adjacent third limiting tooths 51 Between gap in.

Third swing rod 19 is named as A points, 9 place central point of arc-shaped guide rail and A with the point that sliding block 52 is hinged in the present invention The design that point overlaps is, when arc guide block 28 is moved along arc-shaped guide rail 9 to 29 direction of the first spring, in third swing rod 19 Limitation swing under, arc guide block 28 will do arcuate movement using A points as the center of circle.

Motor 5 drives driving wheel 6 to rotate by drive shaft 14；Driving wheel 6 drives driven wheel 16 to rotate through belt 15；It is driven Wheel 16 is rotated through drive ring 25 with moving ring sleeve 17；Second limiting tooth 24 follows ring set 17 to rotate；Ring set 17 drives ring-like saw blade 3 to revolve Turn.

When triggering gunpowder explosion in the present invention, interior bar of stretching 32 is moved to the direction far from corner block 10, interior bar of stretching 32 Third U-shaped board 30 is pushed to be moved to the direction far from corner block 10, and then third U-shaped board 30 drives the first swing rod 8 to far from three The direction of hornblock 10 is swung.The non-explosion time of triggering gunpowder in gunpowder chamber 35, telescopic rod 12 and the first swing rod 8 are perpendicular, and first Swing rod 8 and the second swing rod 31 are conllinear；Second swing rod 31 is connect by the second U-shaped board 27 with the first axle sleeve 18, and third swing rod 19 is pacified On 18 periphery of the first axle sleeve；So when the triggering non-explosion time of gunpowder, and the first axle sleeve 18 is not moved to 10 direction of corner block When dynamic, the first axle sleeve 18 is limited under the support of third swing rod 19 and the second swing rod 31.Telescopic rod 12 hangs down with 8 phase of the first swing rod Straight design is that one side telescopic rod 12 can preferably support the first swing rod 8；On the other hand it is, when triggering gunpowder explosion When, under the impact of triggering gunpowder, flexible interior bar 32 can preferably make the first swing rod 8 generate bigger swing.First axle Set 18 is fixedly mounted on driven shaft 26, and driven shaft 26 can not generate rotation；Driven wheel 16 can surround the axis of driven shaft 26 Rotation.

First limiting tooth 22 is with the matched effect of the second limiting tooth 24：When ring set 17 is moved to 10 direction of corner block When, the first opposite limiting tooth 22 is inserted into the gap of two adjacent the second limiting tooths 24, such first limiting tooth 22 limit the second limiting tooth 24, so that the second limiting tooth 24 can not rotate, final ring set 17 can not also generate rotation.The There is fillet 23, the one end of the second limiting tooth 24 far from limit ring set 17 to have for one one end of limiting tooth 22 far from limit shaft sleeve 21 The design of fillet 23 is so that the first limiting tooth 22 can preferably be inserted into the gap of two adjacent the second limiting tooths 24 In.

Limit shaft 20 is fixed on arc guide block 28, and limit shaft sleeve 21 is fixed on limit shaft 20 and limit shaft sleeve 21 will not Generate rotation.

Weak current is connected in the present invention on ring-like saw blade 3, triggers the principle that gunpowder and motor 5 are controlled by controller 2 It is：When hand touches ring-like saw blade 3 in a flash, the relatively large capacitance of inside of human body will change electric signal, and identifier will be electric Signal passes to controller 2, after controller 2 analyzes electric signal, then controls motor 5 and stops, and controls triggering gunpowder and fire.

The first spring 29 can be such that the movement of arc guide block 28 resets in the present invention；Straight guide block 42 can drive through link block 41 Arc-shaped guide rail 9 is moved to 43 direction of second spring；Second spring 43 can be such that the movement of straight guide block 42 resets.

The design of connecting rod 44 is that connecting rod 44 can follow third U-shaped board 30 to move, and connecting rod 44 can drive the first wobble plate 47 surround the axis oscillating of pin 60.

For executing agency 46：Two third guide blocks 53 can ensure that sliding block 52 slides in sliding groove 49；Third spring 54 can be such that the movement of third guide block 53 resets；Second wobble plate 57 and the first wobble plate 47 are each attached on pin 60, and the first wobble plate 47 can To sell the swing of 60 the second wobble plates of drive 57；Leaf spring 56 can be such that the movement of the first wobble plate 47 resets.

Third limiting tooth 51 is with the matched effect of the 4th limiting tooth 58：When the 4th limiting tooth 58 is inserted into adjacent two In the gap of a third limiting tooth 51, and then the 4th limiting tooth 58 generates position-limiting action with third limiting tooth 51；When the 4th limit After tooth 58 is detached from from the gap of two adjacent third limiting tooths 51, the 4th limiting tooth 58 can not limit work with third limiting tooth 51 With.

The effect in compressive state is leaf spring 56 always in the present invention：When the triggering non-explosion time of gunpowder, due to leaf spring 56 Always it is in compressive state, so the first wobble plate 47 is always there are one to the swing trend far from 52 direction of sliding block, and then first Wobble plate 47 makes the second wobble plate 57, and there are one the trend swung to 52 direction of sliding block always；This ensures that the 4th limiting tooth 58 It is inserted into the gap of two adjacent third limiting tooths 51, and then the 4th limiting tooth 58 generates limit with third limiting tooth 51 and makees With.

The design that the direction of tooth height towards the 5th U-shaped board 55 of 4th limiting tooth 58 uniformly reduces successively is：When the second pendulum When plate 57 surrounds the axis oscillating of pin 60, the amplitude that fourth limiting tooth 58 closer from pin 60 is swung is smaller, is got in this way from pin 60 The the tooth height of the 4th close limiting tooth 58 the low to be preferably in and out of two adjacent third limiting tooths in the case where swinging by a small margin In 51 gap so that the 4th limiting tooth 58 preferably generates matching relationship with third limiting tooth 51.

Specific implementation mode：When bench saw works normally, the triggering gunpowder in gunpowder chamber 35 does not explode, telescopic rod 12 and One swing rod 8 is perpendicular；First swing rod 8 and the second swing rod 31 are conllinear.First limiting tooth 22 and the second limiting tooth 24 do not generate limit Effect.Leaf spring 56 is in compressive state, in gap of the 4th limiting tooth 58 between two adjacent third limiting tooths 51, Three limiting tooths 51 and the 4th limiting tooth 58 generate position-limiting action, and the second wobble plate 57 and the 5th U-shaped board 55 are limited, and then sliding block 52 It can not be slided in sliding groove 49.Motor 5 drives driven wheel 16 to rotate through drive shaft 14, driving wheel 6 and belt 15；Driven wheel 16 3 rotary work of ring-like saw blade is driven through drive ring 25 and ring set 17.

When the hand of user touches annular blade in a flash, the relatively large capacitance of inside of human body will change telecommunications Number, electric signal is passed to controller 2 by identifier, after controller 2 analyzes electric signal, is then controlled motor 5 and is stopped, and control and touch Igniting gunpowder fires.After motor 5 stops, driving wheel 6 stops rotating, but under the rotatory inertia of ring-like saw blade 3 and ring set 17, ring Shape saw blade will not immediately stop rotating.After triggering gunpowder moment fires, 32 moment of interior bar of stretching is to the side far from corner block 10 To movement, 32 moment of interior bar of stretching pushes third U-shaped board 30 to be moved to the direction far from corner block 10, and then third U-shaped board 30 Moment drives the first swing rod 8 to be swung to the direction far from corner block 10, and 30 moment of third U-shaped board drives the second swing rod 31 to separate The direction of corner block 10 is swung.Connecting rod 44 follows 30 moment of third U-shaped board to be swung to the direction far from corner block 10,44 wink of connecting rod Between push the first wobble plate 47 to be swung to 52 direction of sliding block, leaf spring 56 continues to compress, and the first wobble plate 47 sells 60 drives second pendulum 57 moment of plate swings to far from 52 direction of sliding block, and 58 moment of the 4th limiting tooth is between two adjacent third limiting tooths 51 Gap in be detached from, the 4th limiting tooth 58 no longer generates position-limiting action with third limiting tooth 51, and then sliding block 52 is no longer limited. During swinging 31 moment of the second swing rod, the second swing rod 31 can pull the first axle sleeve 18 to the through 27 moment of the second U-shaped board It moves in the direction of one U-shaped board 7.It is considered as being made of two kinds of movements to the movement of the direction of the first U-shaped board 7 in the first axle sleeve 18 , one is that the first axle sleeve 18 is moved to the direction of corner block 10, the other is the first axle sleeve 18 is moved to 48 direction of fixed block.

In direction moving process of first axle sleeve 18 to corner block 10, the first axle sleeve 18 is again through driven shaft 26, driven wheel 16, drive ring 25 and 17 moment of ring set pull ring-like saw blade 3 to be moved to the direction of corner block 10.In ring set 17 to corner block 10 During direction moment moves, the first opposite limiting tooth 22 is inserted into the gap of two adjacent the second limiting tooths 24, First limiting tooth 22 limits the second limiting tooth 24, so that the second limiting tooth 24 can not rotate, 17 moment of final ring set stops Spin-ended turn.3 moment of ring-like saw blade stops rotating at this time, and then in the case where the angular momentum of ring-like saw blade 3 drives, ring-like saw blade 3 has One trend returned in mechanism chamber 4.It is mobile and ring-like 3 angular momentum of saw blade drives in the direction moment of ring set 17 to corner block 10 Under the double action made, ring set 17 drives 21 moment of limit shaft sleeve to corner block 10 through the first limiting tooth 22 and the second limiting tooth 24 Direction moment movement；Limit shaft sleeve 21 drives 28 moment to the direction moment of corner block 10 of arc guide block to move through limit shaft 20 It is dynamic；First spring 29 is compressed；Ring-like saw blade 3 stretches out part moment of 1 epivalve of bench saw shell completely into in mechanism chamber 4, It is reduced by hand in this way and further contacts injury risk caused by ring-like saw blade 3.Follow the first axle sleeve 18 to triangle in driven wheel 16 During the direction moment movement of block 10, the distance between driven wheel 16 to driving wheel 6 will be gradually reduced, and then belt 15 is just It can be in relaxed state, avoid and still drive driven wheel 16 to rotate through driving wheel 6 and belt 15 in the case where motor 5 is out of control, in turn Driven wheel 16 is avoided after transmission still so that the possibility of annular blade rotation, more protects the safety of user.

In the first axle sleeve 18 into 48 direction moving process of fixed block, the first axle sleeve 18 pushes sliding block 52 through third swing rod 19 It being slided to the direction far from the first axle sleeve 18, sliding block 52 drives third guide block 53 to be slided to the direction far from the first axle sleeve 18, the Three springs 54 are compressed.In the first axle sleeve 18 into 48 direction moving process of fixed block, the first axle sleeve 18 is through driven shaft 26, driven Wheel 16, drive ring 25 and ring set 17 drive saw blade to be moved to 48 direction of fixed block, and ring set 17 is limited through the first limiting tooth 22, second Tooth 24, limit shaft sleeve 21 and limit shaft 20 drive arc guide block 28 to be moved to 48 direction of fixed block, and then arc guide block 28 drives Arc-shaped guide rail 9 is moved to 48 direction of fixed block, and arc-shaped guide rail 9 is moved through link block 41 and straight guide block 42 to 48 direction of fixed block, Second spring 43 is compressed.The design that annular blade is moved to 48 direction of fixed block is so that user has just contacted ring-like saw When piece 3, annular blade can ensure that ring-like saw blade 3 far from hand, more protects hand, more avoids to 48 direction movement of fixed block Hand is by cut wound.

The above, after gunpowder explosion, after 3 moment of ring-like saw blade stops rotating, ring set 17 can be to the first U-shaped board 7 Direction is moved, so that annular blade is reduced by hand and further contacts ring in this way far from hand and completely into in mechanism chamber 4 Injury risk caused by type saw blade 3.In addition ring-like saw blade 3 is mounted on the periphery of ring set 17 in the present invention, and ring-like saw blade 3 To stop rotating be that the cooperation of the second limiting tooth 24 and the first limiting tooth 22 on the ring set 17 is limited moment, avoid Saw blade is stopped rotating by rigid limit and is damaged caused by saw blade in traditional bench saw, substantially reduces the replacement number of saw blade, prolongs The service life of saw blade is grown.

User can will recharge triggering gunpowder in gunpowder chamber 35, and by telescopic rod 12, the first swing rod 8 and second Swing rod 31 is restored to home position, and then the first axle sleeve 18 also returns to home position；Under the reset response of the first spring 29, Arc guide block 28 is restored to home position.During arc guide block 28 and the first axle sleeve 18 restore, the first limiting tooth 22 with Second limiting tooth 24 is detached from spacing relation, and driven wheel 16 and ring set 17 are restored to home position, and ring-like saw blade 3 stretches out bench saw again 1 epivalve of shell；Limit shaft sleeve 21 follows arc guide block 28 to be restored to home position.Under 43 reset response of second spring, directly lead Block 42 and arc-shaped guide rail 9 are restored to home position.Under the reset response of third spring 54, third guide block 53 is moved to raw bits It sets, and then third guide block 53 is moved to home position with movable slider 52.Under the reset force of leaf spring 56, third limiting tooth 51 is again It is limited with 58 phase of the 4th limiting tooth.

In conclusion the main advantageous effect of the present invention is：After triggering gunpowder fires, 17 moment of ring set is to the first U-shaped board 7 Direction movement so that annular blade is far from hand and completely into in mechanism chamber 4；In ring set 17 to 7 side of the first U-shaped board During movement, the first limiting tooth 22 and the second limiting tooth 24 generate limit, and 3 moment of ring-like saw blade stops rotating；It is ring-like Saw blade 3 stops rotating, and annular blade is reduced by hand and further contacts ring in this way far from hand and completely into in mechanism chamber 4 Injury risk caused by type saw blade 3.In addition during driven wheel 16 is moved to the direction moment of corner block 10, belt 15 can gradually become Pine avoids driven wheel 16 after transmission still so that the possibility of annular blade rotation, more protects the peace of user Entirely.The configuration of the present invention is simple has preferable safety and using effect.

Claims

1. a kind of bench saw of protection personal safety, it is characterised in that：It include bench saw shell, controller, ring-like saw blade, mechanism chamber, Motor, driving wheel, the first U-shaped board, the first swing rod, arc-shaped guide rail, corner block, telescopic rod, drive shaft, belt, driven wheel, ring Set, the first axle sleeve, third swing rod, limit shaft, limit shaft sleeve, the first limiting tooth, the second limiting tooth, drive ring, driven shaft, second U-shaped board, arc guide block, the first spring, third U-shaped board, the second swing rod, straight guide, link block, straight guide block, second spring, company Bar, the 4th U-shaped board, executing agency are wherein equipped with controller on the epivalve of bench saw shell；There is mechanism chamber in bench saw shell；It holds Row mechanism is mounted on the top surface of mechanism chamber；Straight guide is mounted on mechanism chamber side；Straight guide block is mounted in straight guide；Second One end of spring is mounted on straight guide block, and the other end is mounted on the medial surface of straight guide；Second spring is located in straight guide；Directly Guide block is slided on by second spring in straight guide；One end of link block is mounted on straight guide block, and the other end is equipped with arc and leads Rail；Arc guide block is mounted in arc-shaped guide rail；One end of first spring is mounted on arc guide block, and the other end is led mounted on arc On the medial surface of rail；First spring is located in arc-shaped guide rail；Arc guide block is by the first spring slide in arc-shaped guide rail；Limit One end of axis is mounted on arc-shaped guide rail, and the other end is equipped with limit shaft sleeve；Pacify along circumferential direction on the periphery of limit shaft sleeve There are two the first limiting tooths for dress；

Corner block and the first U-shaped board are mounted on the bottom surface of mechanism chamber；One end of first swing rod is mounted on by hinged mode In first U-shaped board, the other end is equipped with third U-shaped board；One end of telescopic rod is mounted on the inclined-plane of corner block, other end installation On the side of third U-shaped board；Third U-shaped board is equipped with the 4th U-shaped board on the side far from telescopic rod；One end of connecting rod passes through Hinged mode is mounted in the 4th U-shaped board, and the other end is matched with executing agency；

One end of driven shaft is equipped with driven wheel, and the other end is equipped with the first axle sleeve；Is equipped on the periphery of first axle sleeve Two U-shaped boards and third swing rod；Third swing rod is located at the upside of the second U-shaped board；Motor is mounted on the side of mechanism chamber；It is equipped with The mechanism chamber side of straight guide is opposite with the mechanism chamber side of motor is equipped with；Motor position is close to the bottom surface of mechanism chamber；First U Template is between motor and corner block；One end that third swing rod is not connected with the first axle sleeve is matched with executing agency；Second pendulum One end of bar is mounted on by hinged mode in third U-shaped board, and the other end is mounted on the second U-shaped board by hinged mode In；One end of drive shaft is connected with motor shaft, and the other end is equipped with driving wheel；Belt is mounted on the outer of driving wheel and driven wheel On disc；

One end of drive ring is mounted on side of the driven wheel far from the first axle sleeve, and the other end is equipped with ring set；The inner circle of ring set Multiple second limiting tooths are equably installed along circumferential direction on face；Limit shaft sleeve is located in ring set；First limiting tooth and second Limiting tooth matches；Ring-like saw blade is installed on the periphery of ring set；Annular blade passes through the epivalve of bench saw shell；

The executing agency includes the first wobble plate, fixed block, sliding groove, guide groove, third limiting tooth, sliding block, third guide block, third Spring, the 5th U-shaped board, leaf spring, the second wobble plate, the 4th limiting tooth, hinged groove, pin, notch, wherein fixed block are mounted on mechanism chamber Top surface on；It is provided with sliding groove on the lower face of fixed block；It symmetrically opens there are two guide groove the both sides of sliding groove；Positioned at sliding groove On the fixed block lower face of both sides, multiple third limiting tooths are equably installed along sliding groove length direction respectively；Sliding block is installed In sliding groove；It symmetrically installs there are two third guide block the both sides of sliding block；Sliding block is provided with hinge on the side of the first axle sleeve Access slot；Two third guide blocks are located in two guide grooves；One end of two third springs is separately mounted to two third guide blocks On, the other end is separately mounted on the side of respective guide slots；Two third springs are located in corresponding guide groove；Third guide block By third spring slide in guide groove；Sliding block slides in sliding groove；5th U-shaped board is installed on the lower face of sliding block；Pin Both ends both pass through the 5th U-shaped board；It symmetrically installs there are two the second wobble plate at the both ends of pin；The upper face of each the second wobble plate Upper edge the second wobble plate length direction is uniformly equipped with multiple 4th limiting tooths, and the tooth height of the 4th limiting tooth is towards the 5th U-shaped board Direction uniformly reduce successively；One end of first wobble plate is mounted on the periphery of pin, and the other end is provided with notch；First wobble plate connects One end of outbound is located in the 5th U-shaped board；One end of leaf spring is mounted on sliding block, and the other end is mounted in the first wobble plate；Third One end that swing rod is not connected with the first axle sleeve is mounted on by hinged mode in hinged groove；Connecting rod is not connected with the one of the 4th U-shaped board End is mounted on by hinged mode in the notch of the first wobble plate；

The third limiting tooth is matched with the 4th limiting tooth；The telescopic rod is made of flexible housing and flexible interior bar；It is flexible There is flexible slide opening in housing；One end of flexible interior bar is located in flexible slide opening, and the other end is connected with third U-shaped board；It is flexible Interior bar slides in flexible slide opening；One end that flexible interior bar is located at flexible slide opening is named as gunpowder between flexible slide opening bottom surface Chamber；

The described one end of first limiting tooth far from limit shaft sleeve has fillet；

The one end of second limiting tooth far from limit ring set has fillet.

2. a kind of bench saw of protection personal safety, it is characterised in that：It include bench saw shell, controller, ring-like saw blade, mechanism chamber, Motor, driving wheel, the first U-shaped board, the first swing rod, arc-shaped guide rail, corner block, telescopic rod, drive shaft, belt, driven wheel, ring Set, the first axle sleeve, third swing rod, limit shaft, limit shaft sleeve, the first limiting tooth, the second limiting tooth, drive ring, driven shaft, second U-shaped board, arc guide block, the first spring, third U-shaped board, the second swing rod, straight guide, link block, straight guide block, second spring, company Bar, the 4th U-shaped board, executing agency are wherein equipped with controller on the epivalve of bench saw shell；There is mechanism chamber in bench saw shell；It holds Row mechanism is mounted on the top surface of mechanism chamber；Straight guide is mounted on mechanism chamber side；Straight guide block is mounted in straight guide；Second One end of spring is mounted on straight guide block, and the other end is mounted on the medial surface of straight guide；Second spring is located in straight guide；Directly Guide block is slided on by second spring in straight guide；One end of link block is mounted on straight guide block, and the other end is equipped with arc and leads Rail；Arc guide block is mounted in arc-shaped guide rail；One end of first spring is mounted on arc guide block, and the other end is led mounted on arc On the medial surface of rail；First spring is located in arc-shaped guide rail；Arc guide block is by the first spring slide in arc-shaped guide rail；Limit One end of axis is mounted on arc-shaped guide rail, and the other end is equipped with limit shaft sleeve；Pacify along circumferential direction on the periphery of limit shaft sleeve There are two the first limiting tooths for dress；

Equipped with triggering gunpowder in the gunpowder chamber.

3. a kind of bench saw of protection personal safety, it is characterised in that：It include bench saw shell, controller, ring-like saw blade, mechanism chamber, Motor, driving wheel, the first U-shaped board, the first swing rod, arc-shaped guide rail, corner block, telescopic rod, drive shaft, belt, driven wheel, ring Set, the first axle sleeve, third swing rod, limit shaft, limit shaft sleeve, the first limiting tooth, the second limiting tooth, drive ring, driven shaft, second U-shaped board, arc guide block, the first spring, third U-shaped board, the second swing rod, straight guide, link block, straight guide block, second spring, company Bar, the 4th U-shaped board, executing agency are wherein equipped with controller on the epivalve of bench saw shell；There is mechanism chamber in bench saw shell；It holds Row mechanism is mounted on the top surface of mechanism chamber；Straight guide is mounted on mechanism chamber side；Straight guide block is mounted in straight guide；Second One end of spring is mounted on straight guide block, and the other end is mounted on the medial surface of straight guide；Second spring is located in straight guide；Directly Guide block is slided on by second spring in straight guide；One end of link block is mounted on straight guide block, and the other end is equipped with arc and leads Rail；Arc guide block is mounted in arc-shaped guide rail；One end of first spring is mounted on arc guide block, and the other end is led mounted on arc On the medial surface of rail；First spring is located in arc-shaped guide rail；Arc guide block is by the first spring slide in arc-shaped guide rail；Limit One end of axis is mounted on arc-shaped guide rail, and the other end is equipped with limit shaft sleeve；Pacify along circumferential direction on the periphery of limit shaft sleeve There are two the first limiting tooths for dress；

The third swing rod is named as A points with the point that fixed block is hinged；Central point where arc-shaped guide rail is overlapped with A points.

4. a kind of bench saw of protection personal safety, it is characterised in that：It include bench saw shell, controller, ring-like saw blade, mechanism chamber, Motor, driving wheel, the first U-shaped board, the first swing rod, arc-shaped guide rail, corner block, telescopic rod, drive shaft, belt, driven wheel, ring Set, the first axle sleeve, third swing rod, limit shaft, limit shaft sleeve, the first limiting tooth, the second limiting tooth, drive ring, driven shaft, second U-shaped board, arc guide block, the first spring, third U-shaped board, the second swing rod, straight guide, link block, straight guide block, second spring, company Bar, the 4th U-shaped board, executing agency are wherein equipped with controller on the epivalve of bench saw shell；There is mechanism chamber in bench saw shell；It holds Row mechanism is mounted on the top surface of mechanism chamber；Straight guide is mounted on mechanism chamber side；Straight guide block is mounted in straight guide；Second One end of spring is mounted on straight guide block, and the other end is mounted on the medial surface of straight guide；Second spring is located in straight guide；Directly Guide block is slided on by second spring in straight guide；One end of link block is mounted on straight guide block, and the other end is equipped with arc and leads Rail；Arc guide block is mounted in arc-shaped guide rail；One end of first spring is mounted on arc guide block, and the other end is led mounted on arc On the medial surface of rail；First spring is located in arc-shaped guide rail；Arc guide block is by the first spring slide in arc-shaped guide rail；Limit One end of axis is mounted on arc-shaped guide rail, and the other end is equipped with limit shaft sleeve；Pacify along circumferential direction on the periphery of limit shaft sleeve There are two the first limiting tooths for dress；

The triggering gunpowder and motor are controlled by controller.

5. a kind of bench saw of protection personal safety, it is characterised in that：It include bench saw shell, controller, ring-like saw blade, mechanism chamber, Motor, driving wheel, the first U-shaped board, the first swing rod, arc-shaped guide rail, corner block, telescopic rod, drive shaft, belt, driven wheel, ring Set, the first axle sleeve, third swing rod, limit shaft, limit shaft sleeve, the first limiting tooth, the second limiting tooth, drive ring, driven shaft, second U-shaped board, arc guide block, the first spring, third U-shaped board, the second swing rod, straight guide, link block, straight guide block, second spring, company Bar, the 4th U-shaped board, executing agency are wherein equipped with controller on the epivalve of bench saw shell；There is mechanism chamber in bench saw shell；It holds Row mechanism is mounted on the top surface of mechanism chamber；Straight guide is mounted on mechanism chamber side；Straight guide block is mounted in straight guide；Second One end of spring is mounted on straight guide block, and the other end is mounted on the medial surface of straight guide；Second spring is located in straight guide；Directly Guide block is slided on by second spring in straight guide；One end of link block is mounted on straight guide block, and the other end is equipped with arc and leads Rail；Arc guide block is mounted in arc-shaped guide rail；One end of first spring is mounted on arc guide block, and the other end is led mounted on arc On the medial surface of rail；First spring is located in arc-shaped guide rail；Arc guide block is by the first spring slide in arc-shaped guide rail；Limit One end of axis is mounted on arc-shaped guide rail, and the other end is equipped with limit shaft sleeve；Pacify along circumferential direction on the periphery of limit shaft sleeve There are two the first limiting tooths for dress；

The leaf spring is in compressive state always.