CN108705609A - A kind of anti-cutting hand bench saw with rack - Google Patents

Abstract

The invention belongs to bench saw technical fields, more particularly to a kind of anti-cutting hand bench saw with rack, it includes bench saw mounting shell, saw blade, driving motor, the second belt, gunpowder driving structure, when the bench saw that people are designed using the present invention, in normal operation, control driving motor work；Driving motor works so that motor output shaft rotation；Motor output shaft rotation will drive support drive shaft turns by the second belt；Drive shaft turns are supported to drive saw blade rotation；I.e. saw blade works；During the work time if people are when finger is accidentally touched on saw blade in use, the relatively large capacitance of inside of human body will change electricity faint on saw blade；Trigger the electric signal on saw blade；Electric signal triggers gunpowder driving structure, and after gunpowder driving structure is detonated, gunpowder driving structure will push triggering driving plate to be moved towards the side for being equipped with saw blade；Triggering driving plate movement will accelerate saw blade and be moved in bench saw mounting shell；Prevent incised wound finger.

Description

A kind of anti-cutting hand bench saw with rack

Technical field

The invention belongs to bench saw technical field more particularly to a kind of anti-cutting hand bench saws with rack.

Background technology

Bench saw is the center of most of carpentry yards, is the implement of woodworking indispensability.But if improper use, platform Saw will be breakneck.In woodworking production operation, the outer injury of generation is commonplace, and wherein finger is first when it Punching.Every carpenter master worker, finger nearly all more or less by injury in addition some directly just be cut off.It may be said that Bench saw brings great convenience to our carpenter's industry production, but also brings unfortunate injury simultaneously.Market existing one Class mechanical protection bench saw can also accomplish the protection to human body, but it is to realize bench saw stalling using the method for brake , design, the manufacturing and processing of mechanical protection bench saw mechanical braking system make the impact after bench saw mechanical braking to bench saw piece compared with Greatly, bench saw pad wear or damage are caused.Every time braking impact after be both needed to changing table saw blade, cause production waste and use at This raising.The regular hour is also required to reduce production efficiency simultaneously for each changing table saw blade.

The present invention design a kind of anti-cutting hand bench saw with rack solve the problems, such as it is as above.

Invention content

To solve drawbacks described above in the prior art, the present invention discloses a kind of anti-cutting hand bench saw with rack, it is to adopt It is realized with following technical scheme.

A kind of anti-cutting hand bench saw with rack, it is characterised in that：It includes motor support, bench saw mounting shell, saw blade, drive Dynamic motor, the second belt, the first guide groove, saw blade escape groove, arc chute, guide plate, be drivingly connected plate, gunpowder driving structure, Rack, first gear, fixed plate, first rotating shaft, second gear, third gear, the second shaft, the second guide block, support drive shaft, Arc groove, limited block, limit spring, first fix support, flexible gag lever post, triggering driving plate, supporting rod, limit hole, support Axis hole, limit axis hole, mounting groove, wherein bench saw mounting shell are made of bench saw chopping board and installation bottom case；Bench saw chopping board is located at peace Fill the upside of bottom case；It installs and is provided with arc chute on the one side of bottom case；It opens the side that arc chute is provided on the inside of installation bottom case There is the first guide groove；First guide groove is located at the both ends of installation bottom case with arc chute；The saw blade of perforation is provided on bench saw chopping board Escape groove, and the arc chute that saw blade escape groove is opened on installation bottom case；Bench saw mounting shell is fixed by four support columns In on ground.

One end of guide plate is provided with the arc groove of perforation；It is provided with mounting groove in the cambered surface of arc groove；Mounting groove is close to arc The side of slot, and arc groove is located at the upper end on guide plate；One end that guide plate is not provided with arc groove is fixedly mounted on installation bottom On the bottom surface of shell；With the inclined-plane that angle is different on the two sides of limited block one end；What limited block was opened on guide plate In mounting groove；And limited block has bevelled one end and is located on the outside of mounting groove；Limited block does not have bevelled one end and mounting groove Bottom side between symmetrically installation there are two limit spring；Limited block has the arc opened on bevelled one end and guide plate Slot coordinates；Drive shaft is supported to be mounted on installation bottom case；One end of support drive shaft passes through the arc opened on installation bottom case to slide The arc groove opened on slot and guide plate；Drive shaft is supported to coordinate with the limited block on guide plate.

Plate is drivingly connected to be made of the first driving plate and limit disk；Limit disk is mounted on the first driving plate one End；Limiting has round hole on disk；The side for limiting disk is circumferentially equably opened there are six limit hole, and six limit hole positions In the outside for the round hole opened on limit disk；It is drivingly connected plate and is mounted on support by limiting the round hole opened on disk It drives on column, and is drivingly connected plate and is located on the inside of bench saw mounting shell；One with limit hole on limit disk is drivingly connected in plate Side back is to guide plate；There is supporting shaft hole on saw blade；It is circumferential on the side of saw blade equably to open there are six the limit axis hole penetrated through, And six limit axis holes are located at the outside of supporting shaft hole on saw blade；Saw blade is mounted in support drive shaft, and saw blade is close to driving Limit disk in connecting plate；The limit axis hole opened on saw blade coordinates with the limit hole opened on limit disk；Saw blade and platform The saw blade escape groove cooperation opened on saw chopping board.

One end of supporting rod be mounted on be drivingly connected plate in the first driving plate on the one side of guide plate；First fixes The other end of the support mounted on supporting rod；One end of gunpowder driving structure is mounted on first and fixes in support；Triggering driving plate is It is made of the second driving plate and driving installation disk；Driving installation disk is mounted on one end of the second driving plate；Trigger driving plate One end by driving install disk be mounted on support drive shaft on；Match for sliding between driving installation disk and support drive shaft It closes；The other end for triggering driving plate is mounted on by the second driving plate on supporting rod；It is sliding between second driving plate and supporting rod Dynamic cooperation；Second driving plate is connect with the other end of gunpowder driving structure；Side of the driving installation disk towards saw blade is circumferentially equal Flexible gag lever post there are six installing evenly；Six flexible gag lever posts connect with the six limit axis holes opened on saw blade and driving respectively The six limit holes cooperation opened on fishplate bar.

Second shaft and first rotating shaft are mounted between two fixed plates；Second shaft and first rotating shaft are located at two The both ends of fixed plate；The both ends of second shaft are fixedly mounted on two opposite two sides of fixed plate；The both ends of first rotating shaft On the two sides opposite mounted on two fixed plates；Backwards to first rotating shaft and second in one of fixed plate in two fixed plates The side of shaft is equipped with the second guide block；Two fixed plates pass through the first guide groove for being opened on the second guide block and bench saw mounting shell It is fitted on the inside of bench saw mounting shell；It is drivingly connected the first driving plate in plate and is not installed with the one end for limiting disk and second turn Axis connection；First driving plate is located at one end of the second shaft；First gear is mounted on the other end of the second shaft；Third gear is pacified Mounted in one end of first rotating shaft；Third gear is engaged with first gear；Second gear is mounted on the other end of first rotating shaft；Rack On bench saw mounting shell inner bottom surface；Rack is engaged with second gear.

Driving motor is mounted on by motor support on the outside of bench saw mounting shell, and driving motor is located in bench saw mounting shell and pacifies Fill the side of bottom case；Driving motor is far from saw blade；Support drive shaft is located at one end on the outside of bench saw mounting shell and driving motor It is connected by the second belt between output shaft.

There is faint electricity on above-mentioned saw blade.

As being further improved for this technology, above-mentioned support drive shaft coordinates with the inclined-plane on limited block.

As being further improved for this technology, above-mentioned limit spring is compressed spring.

As being further improved for this technology, there is compressed spring in above-mentioned flexible gag lever post.

As being further improved for this technology, the arc groove opened on above-mentioned guide plate and the arc opened on installation bottom case Sliding slot coordinates；And the arc groove opened on guide plate and the arc of arc chute opened on installation bottom case be oriented from up to Under.

Drive shaft is supported to be mounted on installation bottom case in the present invention；One end of support drive shaft passes through is opened on installation bottom case Arc chute and guide plate on the arc groove opened；Drive shaft is supported to coordinate with the limited block on guide plate；Driving Connecting plate is mounted on by limiting the round hole opened on disk on support driving column；Being drivingly connected in plate has on limit disk The side of limit hole is backwards to guide plate；Saw blade is mounted in support drive shaft；The limit axis hole opened on saw blade and limit disk On opened limit hole cooperation；One end of the supporting rod one side of the first driving plate backwards to guide plate in drive connection plate On；First fixes the other end of the support mounted on supporting rod；One end of gunpowder driving structure is mounted on first and fixes in support；It touches The one end for sending out driving plate disk is installed in support drive shaft by driving；Between driving installation disk and support drive shaft To be slidably matched；The other end for triggering driving plate is mounted on by the second driving plate on supporting rod；Second driving plate and supporting rod Between to be slidably matched；Second driving plate is connect with the other end of gunpowder driving structure；One of disk towards saw blade is installed in driving There are six flexible gag lever posts for the circumferential equably installation in side；Six flexible gag lever posts respectively with opened on saw blade six limit axis holes Coordinate with six limit holes opened on plate are drivingly connected；When gunpowder driving structure is triggered, gunpowder driving structure will push away Dynamic triggering driving plate is moved towards the side for being equipped with saw blade；Triggering driving plate movement will drive six flexible gag lever posts to move It is dynamic；During six flexible gag lever post movements, when six flexible gag lever posts and six limit axis holes on saw blade are matched completely When conjunction, six flexible gag lever posts will pass through six limit axis holes on saw blade；When triggering driving plate is in gunpowder driving structure When being continued to move under effect, six flexible gag lever posts in triggering driving plate will be moved to be drivingly connected on plate and be opened Limit hole on the inside of；Due to being slidably matched between the second driving plate and supporting rod；So by being drivingly connected plate, triggering drives Plate and six flexible gag lever posts play position-limiting action to saw blade；The gag lever post that stretches in the present invention is used with stretching, when saw blade exists During high-speed rotation, if six flexible gag lever posts contact in moving process with saw blade, and six flexible gag lever posts and saw When six limit axis holes of on piece are not up to mated condition；Triggering driving plate pushes six flexible gag lever post movements that will make at this time Six flexible gag lever posts are obtained to be compressed；Until six limit axis holes on six flexible gag lever posts and saw blade reach fully mated shape State；Its effect is to prevent six flexible gag lever posts from being interfered with saw blade in moving process；In triggering driving plate in the present invention By supporting drive shaft and supporting rod to play guiding role to triggering driving plate in moving process.

The second shaft and first rotating shaft are mounted between two fixed plates in the present invention；Two fixed plates pass through the second guide block With being fitted on the inside of bench saw mounting shell for the first guide groove for being opened on bench saw mounting shell；It is drivingly connected the first driving plate in plate The one end for being not installed with limit disk is connect with the second shaft；First driving plate is located at one end of the second shaft；First gear is pacified Mounted in the other end of the second shaft；Third gear is mounted on one end of first rotating shaft；Third gear is engaged with first gear；Second Gear is mounted on the other end of first rotating shaft；Rack is mounted in bench saw mounting shell；The teeth and second gear of rack upper side Engagement；When saw blade is to lower swing, saw blade can drive support drive shaft to be moved down along the arc groove held on guide plate；Branch Support drive shaft is moved down along the arc groove opened on guide plate will make drive connection plate be put around the second shaft axis It is dynamic；Being drivingly connected plate will make the second shaft rotate around the swing of the second shaft axis；The rotation of second shaft will drive the One gear rotates；First gear rotation will drive third gear to rotate；The rotation of third gear will drive first rotating shaft to rotate； First rotating shaft rotation will drive second gear to rotate；When rack remains static relative to second gear, second gear Rotation will drive first rotating shaft to be moved along the first guide groove；First rotating shaft movement drives two fixed plates to be moved along the first guide groove It is dynamic；Two fixed plates are moved along the first guide groove will drive first gear, second gear, third gear and be drivingly connected plate edge The movement of the first guide groove；Being drivingly connected plate and moving along the first guide groove will drive support drive shaft along being opened on guide plate Arc groove moves down；Support drive shaft is moved down along the arc groove opened on guide plate drives saw blade along on guide plate The arc groove opened moves down；Accelerate the speed that saw blade moves down；In the present invention in the initial state；Limited block pair Support drive shaft plays position-limiting action.

Driving motor is mounted on by motor support on the outside of bench saw mounting shell in the present invention；Support drive shaft is located at bench saw peace It fills one end on the outside of shell and is connected by the second belt between the output shaft of driving motor；In normal operation, driving motor work Make so that motor output shaft rotation；Motor output shaft rotation will drive support drive shaft turns by the second belt；Support is driven Moving axis rotation drives saw blade rotation；I.e. saw blade works.

Relative to traditional bench saw technology, the bench saw that the present invention designs accelerates saw blade by the transmission of rack and moves down Speed；Prevent saw blade in locking process by the cooperation of the gag lever post that stretches, triggering driving plate, drive connection plate and saw blade simultaneously Middle saw blade is ruined；Reduce the use cost of saw blade；The branch of saw blade is fixed during saw blade is triggered and moves down simultaneously Spacing between support drive shaft and the motor output shaft of driving motor becomes smaller, and the second belt fluffs, to reduce driving motor Damage.

Description of the drawings

Fig. 1 is global facility appearance diagram.

Fig. 2 is global facility distribution schematic diagram.

Fig. 3 is bench saw mounting shell structural schematic diagram.

Fig. 4 is global facility internal structure distribution schematic diagram.

Fig. 5 is global facility internal structure scheme of installation.

Fig. 6 is global facility internal structure cooperation schematic diagram.

Fig. 7 is support drive shaft scheme of installation.

Fig. 8 is limited block scheme of installation.

Fig. 9 is gunpowder driving structure scheme of installation.

Figure 10 is saw blade scheme of installation.

Figure 11 is to be drivingly connected plate scheme of installation.

Figure 12 is first gear scheme of installation.

Figure 13 is to be drivingly connected plate structure schematic diagram.

Figure 14 is second gear and rack cooperation schematic diagram.

Figure 15 is saw-blade structure schematic diagram.

Figure 16 is flexible gag lever post scheme of installation.

Figure label title：1, motor support；2, bench saw mounting shell；3, saw blade；4, driving motor；6, the second belt；7, Bench saw chopping board；8, the first guide groove；9, saw blade escape groove；12, arc chute；13, bottom case is installed；14, guide plate；15, driving connects Fishplate bar；16, gunpowder driving structure；17, rack；18, first gear；19, fixed plate；20, first rotating shaft；21, second gear； 22, third gear；24, the second shaft；29, the second guide block；30, drive shaft is supported；31, arc groove；32, limited block；33, it limits Spring；34, first support is fixed；35, stretch gag lever post；36, driving plate is triggered；37, supporting rod；38, the first driving plate；39, Limit disk；40, limit hole；41, supporting shaft hole；42, axis hole is limited；43, the second driving plate；44, driving installation disk；54, Mounting groove.

Specific implementation mode

As shown in Figure 1, 2, it includes motor support 1, bench saw mounting shell 2, saw blade 3, driving motor 4, the second belt 6, One guide groove 8, arc chute 12, guide plate 14, is drivingly connected plate 15, gunpowder driving structure 16, rack 17, the at saw blade escape groove 9 One gear 18, fixed plate 19, first rotating shaft 20, second gear 21, third gear 22, the second shaft 24, the second guide block 29, support Drive shaft 30, arc groove 31, limited block 32, limit spring 33, first fix support 34, flexible gag lever post 35, triggering driving plate 36, supporting rod 37, limit hole 40, supporting shaft hole 41, limit axis hole 42, mounting groove 54, wherein as shown in figure 3, bench saw mounting shell 2 It is made of bench saw chopping board 7 and installation bottom case 13；Bench saw chopping board 7 is located at the upside of installation bottom case 13；The side of bottom case 13 is installed Arc chute 12 is provided on face；The side that 13 inside of installation bottom case is provided with arc chute 12 is provided with the first guide groove 8；First guide groove 8 The both ends of installation bottom case 13 are located at arc chute 12；The saw blade escape groove 9 of perforation, and saw blade are provided on bench saw chopping board 7 The arc chute 12 that escape groove 9 is opened on installation bottom case 13；Bench saw mounting shell 2 is fixed on ground by four support columns On.

As shown in figure 8, one end of guide plate 14 is provided with the arc groove 31 of perforation；It is provided with mounting groove in the cambered surface of arc groove 31 54；Mounting groove 54 is close to the side of arc groove 31, and arc groove 31 is located at the upper end on guide plate 14；Guide plate 14 is not provided with arc One end of shape slot 31 is fixedly mounted on the bottom surface of installation bottom case 13；Have angle different on the two sides of 32 one end of limited block Inclined-plane；Limited block 32 is mounted in the mounting groove 54 opened on guide plate 14；And limited block 32 has bevelled one end and is located at peace 54 outside of tankage；Limited block 32 does not have between bevelled one end and the bottom side of mounting groove 54 symmetrically installation, and there are two limits Spring 33；Limited block 32 has the arc groove 31 opened on bevelled one end and guide plate 14 and coordinates；As shown in Fig. 2, support is driven Moving axis 30 is mounted on installation bottom case 13；One end of support drive shaft 30 passes through 12 He of arc chute opened on installation bottom case 13 The arc groove 31 opened on guide plate 14；As shown in figure 4, support drive shaft 30 is matched with the limited block 32 on guide plate 14 It closes.

As shown in figure 13, plate 15 is drivingly connected to be made of the first driving plate 38 and limit disk 39；Disk 39 is limited to pacify Mounted in one end of the first driving plate 38；Limiting has round hole on disk 39；The side for limiting disk 39 is circumferentially equably provided with Six limit holes 40, and six limit holes 40 are located at the outside for the round hole opened on limit disk 39；As shown in fig. 6, driving Connecting plate 15 is mounted on by limiting the round hole opened on disk 39 on support driving column, and is drivingly connected plate 15 and is located at bench saw 2 inside of mounting shell；Be drivingly connected in plate 15 has the side of limit hole 40 backwards to guide plate 14 on limit disk 39；Such as Figure 15 institutes Show that there is supporting shaft hole 41 on saw blade 3；The limit axis hole 42 penetrated through there are six circumferentially equably being opened on the side of saw blade 3, and six A limit axis hole 42 is located at the outside of supporting shaft hole 41 on saw blade 3；As shown in fig. 7, saw blade 3 is mounted in support drive shaft 30, And saw blade 3 is close to the limit disk 39 being drivingly connected in plate 15；The limit axis hole 42 opened on saw blade 3 and institute on limit disk 39 The limit hole 40 opened coordinates；As shown in Figure 1, the saw blade escape groove 9 opened on saw blade 3 and bench saw chopping board 7 coordinates.

As shown in Figure 10, one end of supporting rod 37, which is mounted on, is drivingly connected in plate 15 first driving plate 38 backwards to guide plate 14 One side on；First fixes the other end that support 34 is mounted on supporting rod 37；One end of gunpowder driving structure 16 is mounted on the One fixes in support 34；As shown in figure 16, triggering driving plate 36 is made of the second driving plate 43 and driving installation disk 44；It drives Dynamic installation disk 44 is mounted on one end of the second driving plate 43；As shown in figure 9, one end of triggering driving plate 36 is installed by driving Disk 44 is mounted in support drive shaft 30；It is to be slidably matched between driving installation disk 44 and support drive shaft 30；Triggering is driven The other end of movable plate 36 is mounted on by the second driving plate 43 on supporting rod 37；It is sliding between second driving plate 43 and supporting rod 37 Dynamic cooperation；Second driving plate 43 is connect with the other end of gunpowder driving structure 16；As shown in figure 16, driving installation disk 44 towards There are six flexible gag lever posts 35 for the circumferential equably installation in the side of saw blade 3；As shown in figure 9, six flexible gag lever posts 35 respectively with Six limit holes 40 cooperation opened on the six limit axis holes 42 and drive connection plate 15 opened on saw blade 3.

As shown in figure 12, the second shaft 24 and first rotating shaft 20 are mounted between two fixed plates 19；Second shaft, 24 He First rotating shaft 20 is located at the both ends of two fixed plates 19；The both ends of second shaft 24 are fixedly mounted on two 19 phases of fixed plate To two sides on；The both ends of first rotating shaft 20 are mounted on the opposite two sides of two fixed plates 19；As shown in figure 14, two Second guide block 29 is installed backwards to the side of first rotating shaft 20 and the second shaft 24 in one of fixed plate 19 in fixed plate 19； As shown in figure 5, two fixed plates 19 are installed by the cooperation for the first guide groove 8 opened on the second guide block 29 and bench saw mounting shell 2 In 2 inside of bench saw mounting shell；It is drivingly connected the first driving plate 38 in plate 15 and is not installed with the one end for limiting disk 39 and second turn Axis 24 connects；First driving plate 38 is located at one end of the second shaft 24；First gear 18 is mounted on the other end of the second shaft 24； Third gear 22 is mounted on one end of first rotating shaft 20；As shown in figure 11, third gear 22 is engaged with first gear 18；Second tooth Wheel 21 is mounted on the other end of first rotating shaft 20；Rack 17 is mounted on 2 inner bottom surface of bench saw mounting shell；The tooth of 17 upper side of rack Tooth is engaged with second gear 21.

Driving motor 4 is mounted on 2 outside of bench saw mounting shell by motor support 1, and driving motor 4 is located at bench saw mounting shell The side of bottom case 13 is installed in 2；Driving motor 4 is far from saw blade 3；Support drive shaft 30 is located at the one end in 2 outside of bench saw mounting shell It is connect by the second belt 6 between the output shaft of driving motor 4.

There is faint electricity on above-mentioned saw blade 3.

Above-mentioned support drive shaft 30 coordinates with the inclined-plane on limited block 32.

Above-mentioned limit spring 33 is compressed spring.

There is compressed spring in above-mentioned flexible gag lever post 35.

The arc chute 12 opened on the arc groove 31 and installation bottom case 13 opened on above-mentioned guide plate 14 coordinates；And it is oriented to The arc for the arc chute 12 opened on the arc groove 31 and installation bottom case 13 opened on plate 14 is oriented from top to bottom.

In summary：The bench saw that the present invention designs accelerates the speed that saw blade 3 moves down by the transmission of rack 17；Together When by stretch gag lever post 35, triggering driving plate 36, be drivingly connected plate 15 and saw blade 3 cooperation prevent saw blade 3 in locking process Middle saw blade 3 is ruined；Reduce the use cost of saw blade 3；Saw blade 3 is fixed during saw blade 3 is triggered and moves down simultaneously Support drive shaft 30 and the motor output shaft of driving motor 4 between spacing become smaller, the second belt 6 fluffs, to reduce The damage of driving motor 4.

Drive shaft 30 is supported to be mounted on installation bottom case 13 in the present invention；One end of drive shaft 30 is supported to pass through installation bottom case The arc groove 31 opened on the arc chute 12 and guide plate 14 opened on 13；It supports drive shaft 30 and is mounted on guide plate 14 Limited block 32 coordinate；It is drivingly connected plate 15 and is mounted on support driving column by limiting the round hole opened on disk 39；It drives Have the side of limit hole 40 backwards to guide plate 14 on limit disk 39 in dynamic connecting plate 15；Saw blade 3 is mounted on support drive shaft On 30；The limit axis hole 42 opened on saw blade 3 coordinates with the limit hole 40 opened on limit disk 39；Pacify one end of supporting rod 37 First driving plate 38 is on the one side of guide plate 14 in drive connection plate 15；First, which fixes support 34, is mounted on support The other end of bar 37；One end of gunpowder driving structure 16 is mounted on first and fixes in support 34；The one end for triggering driving plate 36 is logical Installation disk 44 of overdriving is mounted in support drive shaft 30；Match for sliding between driving installation disk 44 and support drive shaft 30 It closes；The other end for triggering driving plate 36 is mounted on by the second driving plate 43 on supporting rod 37；Second driving plate 43 and supporting rod It is to be slidably matched between 37；Second driving plate 43 is connect with the other end of gunpowder driving structure 16；Driving installation disk 44 towards There are six flexible gag lever posts 35 for the circumferential equably installation in the side of saw blade 3；Six flexible gag lever posts 35 are opened on saw blade 3 respectively Six limit axis holes 42 and be drivingly connected plate 15 on opened six limit holes 40 cooperation；When gunpowder driving structure 16 is triggered When, gunpowder driving structure 16 will push triggering driving plate 36 to be moved towards the side for being equipped with saw blade 3；Driving plate 36 is triggered to move It is dynamic that six flexible gag lever posts 35 will be driven to move；During six flexible gag lever posts 35 move, when six flexible limits When six limit axis holes 42 on bar 35 and saw blade 3 are fully mated, six flexible gag lever posts 35 will pass through six on saw blade 3 Limit axis hole 42；When triggering driving plate 36 continues to move under the action of gunpowder driving structure 16, it is mounted on triggering driving plate Six flexible gag lever posts 35 on 36 will be moved to 40 inside of limit hole for being drivingly connected and being opened on plate 15；Due to the second driving It is to be slidably matched between plate 43 and supporting rod 37；So by being drivingly connected plate 15, triggering driving plate 36 and six flexible limits Bar 35 plays position-limiting action to saw blade 3；The gag lever post 35 that stretches in the present invention is used with stretching, when saw blade 3 is in high-speed rotation mistake Cheng Zhong, if six flexible gag lever posts 35 contact in moving process with saw blade 3, and on six flexible gag lever posts 35 and saw blade 3 Six limit axis holes 42 be not up to mated condition when；Triggering driving plate 36 pushes six 35 movements of flexible gag lever post will at this time So that six flexible gag lever posts 35 are compressed；Until six flexible gag lever posts 35 and six limit axis holes 42 on saw blade 3 reach Fully mated state；Its effect is to prevent six flexible gag lever posts 35 from being interfered with saw blade 3 in moving process；In the present invention By supporting drive shaft 30 and supporting rod 37 to play guiding role to triggering driving plate 36 in triggering 36 moving process of driving plate.

The second shaft 24 and first rotating shaft 20 are mounted between two fixed plates 19 in the present invention；Two fixed plates 19 pass through The first guide groove 8 opened on second guide block 29 and bench saw mounting shell 2 is fitted to 2 inside of bench saw mounting shell；It is drivingly connected In plate 15 first driving plate 38 be not installed with limit disk 39 one end connect with the second shaft 24；First driving plate 38 is located at the One end of two shafts 24；First gear 18 is mounted on the other end of the second shaft 24；Third gear 22 is mounted on first rotating shaft 20 One end；Third gear 22 is engaged with first gear 18；Second gear 21 is mounted on the other end of first rotating shaft 20；Rack 17 is pacified In bench saw mounting shell 2；The teeth of 17 upper side of rack are engaged with second gear 21；When saw blade 3 is to lower swing, saw blade 3 The arc groove 31 that support drive shaft 30 is held on guide plate 14 can be driven to move down；Support drive shaft 30 along guide plate The arc groove 31 opened on 14, which moves down, will to be drivingly connected plate 15 around 24 axis oscillating of the second shaft；It is drivingly connected Plate 15 will make the second shaft 24 rotate around 24 axis oscillating of the second shaft；The rotation of second shaft 24 will drive the first tooth 18 rotation of wheel；The rotation of first gear 18 will drive third gear 22 to rotate；The rotation of third gear 22 will drive first rotating shaft 20 rotations；The rotation of first rotating shaft 20 will drive second gear 21 to rotate；When rack 17 is in static relative to second gear 21 When state, the rotation of second gear 21 will drive first rotating shaft 20 to be moved along the first guide groove 8；The movement of first rotating shaft 20 drives two A fixed plate 19 is moved along the first guide groove 8；Two fixed plates 19 moved along the first guide groove 8 will drive first gear 18, Second gear 21, third gear 22 and drive connection plate 15 are moved along the first guide groove 8；Plate 15 is drivingly connected along the first guide groove The arc groove 31 that 8 movements will drive support drive shaft 30 to be opened on guide plate 14 moves down；Support 30 edge of drive shaft It the arc groove 31 opened on guide plate 14 and moves down and drive the arc groove 31 opened on guide plate 14 of saw blade 3 to moving down It is dynamic；Accelerate the speed that saw blade 3 moves down；In the present invention in the initial state；Limited block 32 plays support drive shaft 30 To position-limiting action.

Driving motor 4 is mounted on 2 outside of bench saw mounting shell by motor support 1 in the present invention；Support drive shaft 30 is located at It is connected by the second belt 6 between the one end and the output shaft of driving motor 4 in 2 outside of bench saw mounting shell；In normal operation, it drives Dynamic motor 4 works so that motor output shaft rotation；Motor output shaft rotation will drive support drive shaft 30 by the second belt 6 Rotation；Support the rotation of drive shaft 30 that saw blade 3 is driven to rotate；I.e. saw blade 3 works.

Specific implementation mode：When the bench saw that people are designed using the present invention, in normal operation, driving motor 4 is controlled Work；Driving motor 4 works so that motor output shaft rotation；Motor output shaft rotation will be driven by the second belt 6 and be supported Drive shaft 30 rotates；Support the rotation of drive shaft 30 that saw blade 3 is driven to rotate；I.e. saw blade 3 works；During the work time if people exist When finger is accidentally touched on saw blade 3 during use, the relatively large capacitance of inside of human body will change faint on saw blade 3 Electricity；Trigger the electric signal on saw blade 3；Electric signal triggers gunpowder driving structure 16, after gunpowder driving structure 16 is detonated, gunpowder Driving structure 16 will push triggering driving plate 36 to be moved towards the side for being equipped with saw blade 3；Triggering 36 movement of driving plate will Six flexible gag lever posts 35 are driven to move；During six flexible gag lever posts 35 move, when six flexible gag lever posts 35 with When six limit axis holes 42 on saw blade 3 are fully mated, six flexible gag lever posts 35 will pass through six limit shafts on saw blade 3 Hole 42；When triggering driving plate 36 continues to move under the action of gunpowder driving structure 16, it is mounted in triggering driving plate 36 Six flexible gag lever posts 35 will be moved to 40 inside of limit hole for being drivingly connected and being opened on plate 15；By be drivingly connected plate 15, Driving plate 36 and six flexible gag lever posts 35 are triggered to 3 locking of saw blade；At this time under the driving of 3 angular momentum of saw blade, saw blade 3 is downward It swings, the arc groove 31 that saw blade 3 can drive support drive shaft 30 to be held on guide plate 14 moves down；Support drive shaft 30 The arc groove 31 opened on guide plate 14, which moves down, will to be drivingly connected plate 15 around 24 axis of the second shaft pendulum It is dynamic；Being drivingly connected plate 15 will make the second shaft 24 rotate around 24 axis oscillating of the second shaft；Second shaft 24 rotates just First gear 18 can be driven to rotate；The rotation of first gear 18 will drive third gear 22 to rotate；The rotation of third gear 22 will First rotating shaft 20 is driven to rotate；The rotation of first rotating shaft 20 will drive second gear 21 to rotate；When rack 17 is relative to the second tooth When wheel 21 remains static, the rotation of second gear 21 will drive first rotating shaft 20 to be moved along the first guide groove 8；First rotating shaft 20 movements drive two fixed plates 19 to be moved along the first guide groove 8；Two fixed plates 19 are moved and will be driven along the first guide groove 8 First gear 18, second gear 21, third gear 22 and drive connection plate 15 are moved along the first guide groove 8；It is drivingly connected plate 15 The arc groove 31 that being moved along the first guide groove 8 will drive support drive shaft 30 to be opened on guide plate 14 moves down；Branch The arc groove 31 that support drive shaft 30 is opened on guide plate 14 moves down the arc for driving saw blade 3 to be opened on guide plate 14 Shape slot 31 moves down；Accelerate the speed that saw blade 3 moves down；Saw blade 3 is allow to move quickly into bench saw mounting shell 2 It is interior；Prevent incised wound finger.

Claims (6)

1. a kind of anti-cutting hand bench saw with rack, it is characterised in that：It includes motor support, bench saw mounting shell, saw blade, driving Motor, the first guide groove, saw blade escape groove, arc chute, guide plate, is drivingly connected plate, gunpowder driving structure, tooth at the second belt Item, first gear, fixed plate, first rotating shaft, second gear, third gear, the second shaft, the second guide block, support drive shaft, arc Shape slot, limited block, limit spring, first fix support, flexible gag lever post, triggering driving plate, supporting rod, limit hole, support shaft Hole, limit axis hole, mounting groove, wherein bench saw mounting shell are made of bench saw chopping board and installation bottom case；Bench saw chopping board is located at installation The upside of bottom case；It installs and is provided with arc chute on the one side of bottom case；The side that arc chute is provided on the inside of installation bottom case is provided with First guide groove；First guide groove is located at the both ends of installation bottom case with arc chute；The saw blade that perforation is provided on bench saw chopping board is kept away Allow slot, and the arc chute that saw blade escape groove is opened on installation bottom case；Bench saw mounting shell is fixed on by four support columns On ground；

One end of guide plate is provided with the arc groove of perforation；It is provided with mounting groove in the cambered surface of arc groove；Mounting groove is close to arc groove Side, and arc groove is located at the upper end on guide plate；One end that guide plate is not provided with arc groove is fixedly mounted on installation bottom case On bottom surface；With the inclined-plane that angle is different on the two sides of limited block one end；Limited block is mounted on the installation opened on guide plate In slot；And limited block has bevelled one end and is located on the outside of mounting groove；Limited block does not have bevelled one end and the bottom of mounting groove Symmetrically there are two limit springs for installation between side；Limited block has bevelled one end and matches with the arc groove opened on guide plate It closes；Drive shaft is supported to be mounted on installation bottom case；One end of support drive shaft pass through on installation bottom case the arc chute opened and The arc groove opened on guide plate；Drive shaft is supported to coordinate with the limited block on guide plate；

Plate is drivingly connected to be made of the first driving plate and limit disk；Limit one end that disk is mounted on the first driving plate；Limit There is round hole on circle of position disk；The side for limiting disk is circumferentially equably opened there are six limit hole, and six limit holes are located at limit The outside for the round hole opened on circle of position disk；It is drivingly connected plate and is mounted on support driving by limiting the round hole opened on disk On column, and it is drivingly connected plate and is located on the inside of bench saw mounting shell；A side back with limit hole on limit disk is drivingly connected in plate To guide plate；There is supporting shaft hole on saw blade；The limit axis hole penetrated through there are six circumferentially equably being opened on the side of saw blade, and six A limit axis hole is located at the outside of supporting shaft hole on saw blade；Saw blade is mounted in support drive shaft, and saw blade is close to drive connection Limit disk in plate；The limit axis hole opened on saw blade coordinates with the limit hole opened on limit disk；Saw blade and bench saw case The saw blade escape groove cooperation opened on plate；

One end of supporting rod be mounted on be drivingly connected plate in the first driving plate on the one side of guide plate；First fixes support Mounted on the other end of supporting rod；One end of gunpowder driving structure is mounted on first and fixes in support；Triggering driving plate is by the Two driving plates and driving installation disk composition；Driving installation disk is mounted on one end of the second driving plate；Trigger the one of driving plate Disk is installed by driving and is mounted in support drive shaft in end；It is to be slidably matched between driving installation disk and support drive shaft； The other end for triggering driving plate is mounted on by the second driving plate on supporting rod；Match for sliding between second driving plate and supporting rod It closes；Second driving plate is connect with the other end of gunpowder driving structure；Side of the driving installation disk towards saw blade is circumferential equably There are six flexible gag lever posts for installation；Six flexible gag lever posts respectively with opened on saw blade six limit axis holes and drive connection plate On opened six limit holes cooperation；

Second shaft and first rotating shaft are mounted between two fixed plates；Second shaft and first rotating shaft are located at two fixations The both ends of plate；The both ends of second shaft are fixedly mounted on two opposite two sides of fixed plate；It installs at the both ends of first rotating shaft On the opposite two sides of two fixed plates；Backwards to first rotating shaft and the second shaft in one of fixed plate in two fixed plates Side the second guide block is installed；Two fixed plates pass through the cooperation for the first guide groove opened on the second guide block and bench saw mounting shell On the inside of bench saw mounting shell；It is drivingly connected one end and the second shaft company that the first driving plate in plate is not installed with limit disk It connects；First driving plate is located at one end of the second shaft；First gear is mounted on the other end of the second shaft；Third gear is mounted on One end of first rotating shaft；Third gear is engaged with first gear；Second gear is mounted on the other end of first rotating shaft；Rack is installed On bench saw mounting shell inner bottom surface；Rack is engaged with second gear；

Driving motor is mounted on by motor support on the outside of bench saw mounting shell, and driving motor is located in bench saw mounting shell and installs bottom The side of shell；Driving motor is far from saw blade；Support drive shaft is located at the output of one end and driving motor on the outside of bench saw mounting shell It is connected by the second belt between axis；

There is faint electricity on the saw blade；

The support drive shaft coordinates with the inclined-plane on limited block；

The limit spring is compressed spring.

2. a kind of anti-cutting hand bench saw with rack, it is characterised in that：It includes motor support, bench saw mounting shell, saw blade, driving Motor, the first guide groove, saw blade escape groove, arc chute, guide plate, is drivingly connected plate, gunpowder driving structure, tooth at the second belt Item, first gear, fixed plate, first rotating shaft, second gear, third gear, the second shaft, the second guide block, support drive shaft, arc Shape slot, limited block, limit spring, first fix support, flexible gag lever post, triggering driving plate, supporting rod, limit hole, support shaft Hole, limit axis hole, mounting groove, wherein bench saw mounting shell are made of bench saw chopping board and installation bottom case；Bench saw chopping board is located at installation The upside of bottom case；It installs and is provided with arc chute on the one side of bottom case；The side that arc chute is provided on the inside of installation bottom case is provided with First guide groove；First guide groove is located at the both ends of installation bottom case with arc chute；The saw blade that perforation is provided on bench saw chopping board is kept away Allow slot, and the arc chute that saw blade escape groove is opened on installation bottom case；Bench saw mounting shell is fixed on by four support columns On ground；

One end of guide plate is provided with the arc groove of perforation；It is provided with mounting groove in the cambered surface of arc groove；Mounting groove is close to arc groove Side, and arc groove is located at the upper end on guide plate；One end that guide plate is not provided with arc groove is fixedly mounted on installation bottom case On bottom surface；With the inclined-plane that angle is different on the two sides of limited block one end；Limited block is mounted on the installation opened on guide plate In slot；And limited block has bevelled one end and is located on the outside of mounting groove；Limited block does not have bevelled one end and the bottom of mounting groove Symmetrically there are two limit springs for installation between side；Limited block has bevelled one end and matches with the arc groove opened on guide plate It closes；Drive shaft is supported to be mounted on installation bottom case；One end of support drive shaft pass through on installation bottom case the arc chute opened and The arc groove opened on guide plate；Drive shaft is supported to coordinate with the limited block on guide plate；

Plate is drivingly connected to be made of the first driving plate and limit disk；Limit one end that disk is mounted on the first driving plate；Limit There is round hole on circle of position disk；The side for limiting disk is circumferentially equably opened there are six limit hole, and six limit holes are located at limit The outside for the round hole opened on circle of position disk；It is drivingly connected plate and is mounted on support driving by limiting the round hole opened on disk On column, and it is drivingly connected plate and is located on the inside of bench saw mounting shell；A side back with limit hole on limit disk is drivingly connected in plate To guide plate；There is supporting shaft hole on saw blade；The limit axis hole penetrated through there are six circumferentially equably being opened on the side of saw blade, and six A limit axis hole is located at the outside of supporting shaft hole on saw blade；Saw blade is mounted in support drive shaft, and saw blade is close to drive connection Limit disk in plate；The limit axis hole opened on saw blade coordinates with the limit hole opened on limit disk；Saw blade and bench saw case The saw blade escape groove cooperation opened on plate；

One end of supporting rod be mounted on be drivingly connected plate in the first driving plate on the one side of guide plate；First fixes support Mounted on the other end of supporting rod；One end of gunpowder driving structure is mounted on first and fixes in support；Triggering driving plate is by the Two driving plates and driving installation disk composition；Driving installation disk is mounted on one end of the second driving plate；Trigger the one of driving plate Disk is installed by driving and is mounted in support drive shaft in end；It is to be slidably matched between driving installation disk and support drive shaft； The other end for triggering driving plate is mounted on by the second driving plate on supporting rod；Match for sliding between second driving plate and supporting rod It closes；Second driving plate is connect with the other end of gunpowder driving structure；Side of the driving installation disk towards saw blade is circumferential equably There are six flexible gag lever posts for installation；Six flexible gag lever posts respectively with opened on saw blade six limit axis holes and drive connection plate On opened six limit holes cooperation；

Second shaft and first rotating shaft are mounted between two fixed plates；Second shaft and first rotating shaft are located at two fixations The both ends of plate；The both ends of second shaft are fixedly mounted on two opposite two sides of fixed plate；It installs at the both ends of first rotating shaft On the opposite two sides of two fixed plates；Backwards to first rotating shaft and the second shaft in one of fixed plate in two fixed plates Side the second guide block is installed；Two fixed plates pass through the cooperation for the first guide groove opened on the second guide block and bench saw mounting shell On the inside of bench saw mounting shell；It is drivingly connected one end and the second shaft company that the first driving plate in plate is not installed with limit disk It connects；First driving plate is located at one end of the second shaft；First gear is mounted on the other end of the second shaft；Third gear is mounted on One end of first rotating shaft；Third gear is engaged with first gear；Second gear is mounted on the other end of first rotating shaft；Rack is installed On bench saw mounting shell inner bottom surface；Rack is engaged with second gear；

Driving motor is mounted on by motor support on the outside of bench saw mounting shell, and driving motor is located in bench saw mounting shell and installs bottom The side of shell；Driving motor is far from saw blade；Support drive shaft is located at the output of one end and driving motor on the outside of bench saw mounting shell It is connected by the second belt between axis；

There is faint electricity on the saw blade；

The support drive shaft coordinates with the inclined-plane on limited block；

There is compressed spring in the flexible gag lever post.

3. a kind of anti-cutting hand bench saw with rack, it is characterised in that：It includes motor support, bench saw mounting shell, saw blade, driving Motor, the first guide groove, saw blade escape groove, arc chute, guide plate, is drivingly connected plate, gunpowder driving structure, tooth at the second belt Item, first gear, fixed plate, first rotating shaft, second gear, third gear, the second shaft, the second guide block, support drive shaft, arc Shape slot, limited block, limit spring, first fix support, flexible gag lever post, triggering driving plate, supporting rod, limit hole, support shaft Hole, limit axis hole, mounting groove, wherein bench saw mounting shell are made of bench saw chopping board and installation bottom case；Bench saw chopping board is located at installation The upside of bottom case；It installs and is provided with arc chute on the one side of bottom case；The side that arc chute is provided on the inside of installation bottom case is provided with First guide groove；First guide groove is located at the both ends of installation bottom case with arc chute；The saw blade that perforation is provided on bench saw chopping board is kept away Allow slot, and the arc chute that saw blade escape groove is opened on installation bottom case；Bench saw mounting shell is fixed on by four support columns On ground；

One end of guide plate is provided with the arc groove of perforation；It is provided with mounting groove in the cambered surface of arc groove；Mounting groove is close to arc groove Side, and arc groove is located at the upper end on guide plate；One end that guide plate is not provided with arc groove is fixedly mounted on installation bottom case On bottom surface；With the inclined-plane that angle is different on the two sides of limited block one end；Limited block is mounted on the installation opened on guide plate In slot；And limited block has bevelled one end and is located on the outside of mounting groove；Limited block does not have bevelled one end and the bottom of mounting groove Symmetrically there are two limit springs for installation between side；Limited block has bevelled one end and matches with the arc groove opened on guide plate It closes；Drive shaft is supported to be mounted on installation bottom case；One end of support drive shaft pass through on installation bottom case the arc chute opened and The arc groove opened on guide plate；Drive shaft is supported to coordinate with the limited block on guide plate；

Plate is drivingly connected to be made of the first driving plate and limit disk；Limit one end that disk is mounted on the first driving plate；Limit There is round hole on circle of position disk；The side for limiting disk is circumferentially equably opened there are six limit hole, and six limit holes are located at limit The outside for the round hole opened on circle of position disk；It is drivingly connected plate and is mounted on support driving by limiting the round hole opened on disk On column, and it is drivingly connected plate and is located on the inside of bench saw mounting shell；A side back with limit hole on limit disk is drivingly connected in plate To guide plate；There is supporting shaft hole on saw blade；The limit axis hole penetrated through there are six circumferentially equably being opened on the side of saw blade, and six A limit axis hole is located at the outside of supporting shaft hole on saw blade；Saw blade is mounted in support drive shaft, and saw blade is close to drive connection Limit disk in plate；The limit axis hole opened on saw blade coordinates with the limit hole opened on limit disk；Saw blade and bench saw case The saw blade escape groove cooperation opened on plate；

One end of supporting rod be mounted on be drivingly connected plate in the first driving plate on the one side of guide plate；First fixes support Mounted on the other end of supporting rod；One end of gunpowder driving structure is mounted on first and fixes in support；Triggering driving plate is by the Two driving plates and driving installation disk composition；Driving installation disk is mounted on one end of the second driving plate；Trigger the one of driving plate Disk is installed by driving and is mounted in support drive shaft in end；It is to be slidably matched between driving installation disk and support drive shaft； The other end for triggering driving plate is mounted on by the second driving plate on supporting rod；Match for sliding between second driving plate and supporting rod It closes；Second driving plate is connect with the other end of gunpowder driving structure；Side of the driving installation disk towards saw blade is circumferential equably There are six flexible gag lever posts for installation；Six flexible gag lever posts respectively with opened on saw blade six limit axis holes and drive connection plate On opened six limit holes cooperation；

Second shaft and first rotating shaft are mounted between two fixed plates；Second shaft and first rotating shaft are located at two fixations The both ends of plate；The both ends of second shaft are fixedly mounted on two opposite two sides of fixed plate；It installs at the both ends of first rotating shaft On the opposite two sides of two fixed plates；Backwards to first rotating shaft and the second shaft in one of fixed plate in two fixed plates Side the second guide block is installed；Two fixed plates pass through the cooperation for the first guide groove opened on the second guide block and bench saw mounting shell On the inside of bench saw mounting shell；It is drivingly connected one end and the second shaft company that the first driving plate in plate is not installed with limit disk It connects；First driving plate is located at one end of the second shaft；First gear is mounted on the other end of the second shaft；Third gear is mounted on One end of first rotating shaft；Third gear is engaged with first gear；Second gear is mounted on the other end of first rotating shaft；Rack is installed On bench saw mounting shell inner bottom surface；Rack is engaged with second gear；

Driving motor is mounted on by motor support on the outside of bench saw mounting shell, and driving motor is located in bench saw mounting shell and installs bottom The side of shell；Driving motor is far from saw blade；Support drive shaft is located at the output of one end and driving motor on the outside of bench saw mounting shell It is connected by the second belt between axis；

There is faint electricity on the saw blade；

The support drive shaft coordinates with the inclined-plane on limited block；

The arc chute cooperation opened on the arc groove and installation bottom case opened on the guide plate；And the arc opened on guide plate The arc for the arc chute opened on shape slot and installation bottom case is oriented from top to bottom.

4. a kind of anti-cutting hand bench saw with rack, it is characterised in that：It includes motor support, bench saw mounting shell, saw blade, driving Motor, the first guide groove, saw blade escape groove, arc chute, guide plate, is drivingly connected plate, gunpowder driving structure, tooth at the second belt Item, first gear, fixed plate, first rotating shaft, second gear, third gear, the second shaft, the second guide block, support drive shaft, arc Shape slot, limited block, limit spring, first fix support, flexible gag lever post, triggering driving plate, supporting rod, limit hole, support shaft Hole, limit axis hole, mounting groove, wherein bench saw mounting shell are made of bench saw chopping board and installation bottom case；Bench saw chopping board is located at installation The upside of bottom case；It installs and is provided with arc chute on the one side of bottom case；The side that arc chute is provided on the inside of installation bottom case is provided with First guide groove；First guide groove is located at the both ends of installation bottom case with arc chute；The saw blade that perforation is provided on bench saw chopping board is kept away Allow slot, and the arc chute that saw blade escape groove is opened on installation bottom case；Bench saw mounting shell is fixed on by four support columns On ground；

One end of guide plate is provided with the arc groove of perforation；It is provided with mounting groove in the cambered surface of arc groove；Mounting groove is close to arc groove Side, and arc groove is located at the upper end on guide plate；One end that guide plate is not provided with arc groove is fixedly mounted on installation bottom case On bottom surface；With the inclined-plane that angle is different on the two sides of limited block one end；Limited block is mounted on the installation opened on guide plate In slot；And limited block has bevelled one end and is located on the outside of mounting groove；Limited block does not have bevelled one end and the bottom of mounting groove Symmetrically there are two limit springs for installation between side；Limited block has bevelled one end and matches with the arc groove opened on guide plate It closes；Drive shaft is supported to be mounted on installation bottom case；One end of support drive shaft pass through on installation bottom case the arc chute opened and The arc groove opened on guide plate；Drive shaft is supported to coordinate with the limited block on guide plate；

Plate is drivingly connected to be made of the first driving plate and limit disk；Limit one end that disk is mounted on the first driving plate；Limit There is round hole on circle of position disk；The side for limiting disk is circumferentially equably opened there are six limit hole, and six limit holes are located at limit The outside for the round hole opened on circle of position disk；It is drivingly connected plate and is mounted on support driving by limiting the round hole opened on disk On column, and it is drivingly connected plate and is located on the inside of bench saw mounting shell；A side back with limit hole on limit disk is drivingly connected in plate To guide plate；There is supporting shaft hole on saw blade；The limit axis hole penetrated through there are six circumferentially equably being opened on the side of saw blade, and six A limit axis hole is located at the outside of supporting shaft hole on saw blade；Saw blade is mounted in support drive shaft, and saw blade is close to drive connection Limit disk in plate；The limit axis hole opened on saw blade coordinates with the limit hole opened on limit disk；Saw blade and bench saw case The saw blade escape groove cooperation opened on plate；

One end of supporting rod be mounted on be drivingly connected plate in the first driving plate on the one side of guide plate；First fixes support Mounted on the other end of supporting rod；One end of gunpowder driving structure is mounted on first and fixes in support；Triggering driving plate is by the Two driving plates and driving installation disk composition；Driving installation disk is mounted on one end of the second driving plate；Trigger the one of driving plate Disk is installed by driving and is mounted in support drive shaft in end；It is to be slidably matched between driving installation disk and support drive shaft； The other end for triggering driving plate is mounted on by the second driving plate on supporting rod；Match for sliding between second driving plate and supporting rod It closes；Second driving plate is connect with the other end of gunpowder driving structure；Side of the driving installation disk towards saw blade is circumferential equably There are six flexible gag lever posts for installation；Six flexible gag lever posts respectively with opened on saw blade six limit axis holes and drive connection plate On opened six limit holes cooperation；

Second shaft and first rotating shaft are mounted between two fixed plates；Second shaft and first rotating shaft are located at two fixations The both ends of plate；The both ends of second shaft are fixedly mounted on two opposite two sides of fixed plate；It installs at the both ends of first rotating shaft On the opposite two sides of two fixed plates；Backwards to first rotating shaft and the second shaft in one of fixed plate in two fixed plates Side the second guide block is installed；Two fixed plates pass through the cooperation for the first guide groove opened on the second guide block and bench saw mounting shell On the inside of bench saw mounting shell；It is drivingly connected one end and the second shaft company that the first driving plate in plate is not installed with limit disk It connects；First driving plate is located at one end of the second shaft；First gear is mounted on the other end of the second shaft；Third gear is mounted on One end of first rotating shaft；Third gear is engaged with first gear；Second gear is mounted on the other end of first rotating shaft；Rack is installed On bench saw mounting shell inner bottom surface；Rack is engaged with second gear；

Driving motor is mounted on by motor support on the outside of bench saw mounting shell, and driving motor is located in bench saw mounting shell and installs bottom The side of shell；Driving motor is far from saw blade；Support drive shaft is located at the output of one end and driving motor on the outside of bench saw mounting shell It is connected by the second belt between axis；

There is faint electricity on the saw blade；

The limit spring is compressed spring；

There is compressed spring in the flexible gag lever post.

5. a kind of anti-cutting hand bench saw with rack, it is characterised in that：It includes motor support, bench saw mounting shell, saw blade, driving Motor, the first guide groove, saw blade escape groove, arc chute, guide plate, is drivingly connected plate, gunpowder driving structure, tooth at the second belt Item, first gear, fixed plate, first rotating shaft, second gear, third gear, the second shaft, the second guide block, support drive shaft, arc Shape slot, limited block, limit spring, first fix support, flexible gag lever post, triggering driving plate, supporting rod, limit hole, support shaft Hole, limit axis hole, mounting groove, wherein bench saw mounting shell are made of bench saw chopping board and installation bottom case；Bench saw chopping board is located at installation The upside of bottom case；It installs and is provided with arc chute on the one side of bottom case；The side that arc chute is provided on the inside of installation bottom case is provided with First guide groove；First guide groove is located at the both ends of installation bottom case with arc chute；The saw blade that perforation is provided on bench saw chopping board is kept away Allow slot, and the arc chute that saw blade escape groove is opened on installation bottom case；Bench saw mounting shell is fixed on by four support columns On ground；

One end of guide plate is provided with the arc groove of perforation；It is provided with mounting groove in the cambered surface of arc groove；Mounting groove is close to arc groove Side, and arc groove is located at the upper end on guide plate；One end that guide plate is not provided with arc groove is fixedly mounted on installation bottom case On bottom surface；With the inclined-plane that angle is different on the two sides of limited block one end；Limited block is mounted on the installation opened on guide plate In slot；And limited block has bevelled one end and is located on the outside of mounting groove；Limited block does not have bevelled one end and the bottom of mounting groove Symmetrically there are two limit springs for installation between side；Limited block has bevelled one end and matches with the arc groove opened on guide plate It closes；Drive shaft is supported to be mounted on installation bottom case；One end of support drive shaft pass through on installation bottom case the arc chute opened and The arc groove opened on guide plate；Drive shaft is supported to coordinate with the limited block on guide plate；

Plate is drivingly connected to be made of the first driving plate and limit disk；Limit one end that disk is mounted on the first driving plate；Limit There is round hole on circle of position disk；The side for limiting disk is circumferentially equably opened there are six limit hole, and six limit holes are located at limit The outside for the round hole opened on circle of position disk；It is drivingly connected plate and is mounted on support driving by limiting the round hole opened on disk On column, and it is drivingly connected plate and is located on the inside of bench saw mounting shell；A side back with limit hole on limit disk is drivingly connected in plate To guide plate；There is supporting shaft hole on saw blade；The limit axis hole penetrated through there are six circumferentially equably being opened on the side of saw blade, and six A limit axis hole is located at the outside of supporting shaft hole on saw blade；Saw blade is mounted in support drive shaft, and saw blade is close to drive connection Limit disk in plate；The limit axis hole opened on saw blade coordinates with the limit hole opened on limit disk；Saw blade and bench saw case The saw blade escape groove cooperation opened on plate；

One end of supporting rod be mounted on be drivingly connected plate in the first driving plate on the one side of guide plate；First fixes support Mounted on the other end of supporting rod；One end of gunpowder driving structure is mounted on first and fixes in support；Triggering driving plate is by the Two driving plates and driving installation disk composition；Driving installation disk is mounted on one end of the second driving plate；Trigger the one of driving plate Disk is installed by driving and is mounted in support drive shaft in end；It is to be slidably matched between driving installation disk and support drive shaft； The other end for triggering driving plate is mounted on by the second driving plate on supporting rod；Match for sliding between second driving plate and supporting rod It closes；Second driving plate is connect with the other end of gunpowder driving structure；Side of the driving installation disk towards saw blade is circumferential equably There are six flexible gag lever posts for installation；Six flexible gag lever posts respectively with opened on saw blade six limit axis holes and drive connection plate On opened six limit holes cooperation；

Second shaft and first rotating shaft are mounted between two fixed plates；Second shaft and first rotating shaft are located at two fixations The both ends of plate；The both ends of second shaft are fixedly mounted on two opposite two sides of fixed plate；It installs at the both ends of first rotating shaft On the opposite two sides of two fixed plates；Backwards to first rotating shaft and the second shaft in one of fixed plate in two fixed plates Side the second guide block is installed；Two fixed plates pass through the cooperation for the first guide groove opened on the second guide block and bench saw mounting shell On the inside of bench saw mounting shell；It is drivingly connected one end and the second shaft company that the first driving plate in plate is not installed with limit disk It connects；First driving plate is located at one end of the second shaft；First gear is mounted on the other end of the second shaft；Third gear is mounted on One end of first rotating shaft；Third gear is engaged with first gear；Second gear is mounted on the other end of first rotating shaft；Rack is installed On bench saw mounting shell inner bottom surface；Rack is engaged with second gear；

Driving motor is mounted on by motor support on the outside of bench saw mounting shell, and driving motor is located in bench saw mounting shell and installs bottom The side of shell；Driving motor is far from saw blade；Support drive shaft is located at the output of one end and driving motor on the outside of bench saw mounting shell It is connected by the second belt between axis；

There is faint electricity on the saw blade；

The limit spring is compressed spring；

The arc chute cooperation opened on the arc groove and installation bottom case opened on the guide plate；And the arc opened on guide plate The arc for the arc chute opened on shape slot and installation bottom case is oriented from top to bottom.

6. a kind of anti-cutting hand bench saw with rack, it is characterised in that：It includes motor support, bench saw mounting shell, saw blade, driving Motor, the first guide groove, saw blade escape groove, arc chute, guide plate, is drivingly connected plate, gunpowder driving structure, tooth at the second belt Item, first gear, fixed plate, first rotating shaft, second gear, third gear, the second shaft, the second guide block, support drive shaft, arc Shape slot, limited block, limit spring, first fix support, flexible gag lever post, triggering driving plate, supporting rod, limit hole, support shaft Hole, limit axis hole, mounting groove, wherein bench saw mounting shell are made of bench saw chopping board and installation bottom case；Bench saw chopping board is located at installation The upside of bottom case；It installs and is provided with arc chute on the one side of bottom case；The side that arc chute is provided on the inside of installation bottom case is provided with First guide groove；First guide groove is located at the both ends of installation bottom case with arc chute；The saw blade that perforation is provided on bench saw chopping board is kept away Allow slot, and the arc chute that saw blade escape groove is opened on installation bottom case；Bench saw mounting shell is fixed on by four support columns On ground；

One end of guide plate is provided with the arc groove of perforation；It is provided with mounting groove in the cambered surface of arc groove；Mounting groove is close to arc groove Side, and arc groove is located at the upper end on guide plate；One end that guide plate is not provided with arc groove is fixedly mounted on installation bottom case On bottom surface；With the inclined-plane that angle is different on the two sides of limited block one end；Limited block is mounted on the installation opened on guide plate In slot；And limited block has bevelled one end and is located on the outside of mounting groove；Limited block does not have bevelled one end and the bottom of mounting groove Symmetrically there are two limit springs for installation between side；Limited block has bevelled one end and matches with the arc groove opened on guide plate It closes；Drive shaft is supported to be mounted on installation bottom case；One end of support drive shaft pass through on installation bottom case the arc chute opened and The arc groove opened on guide plate；Drive shaft is supported to coordinate with the limited block on guide plate；

Plate is drivingly connected to be made of the first driving plate and limit disk；Limit one end that disk is mounted on the first driving plate；Limit There is round hole on circle of position disk；The side for limiting disk is circumferentially equably opened there are six limit hole, and six limit holes are located at limit The outside for the round hole opened on circle of position disk；It is drivingly connected plate and is mounted on support driving by limiting the round hole opened on disk On column, and it is drivingly connected plate and is located on the inside of bench saw mounting shell；A side back with limit hole on limit disk is drivingly connected in plate To guide plate；There is supporting shaft hole on saw blade；The limit axis hole penetrated through there are six circumferentially equably being opened on the side of saw blade, and six A limit axis hole is located at the outside of supporting shaft hole on saw blade；Saw blade is mounted in support drive shaft, and saw blade is close to drive connection Limit disk in plate；The limit axis hole opened on saw blade coordinates with the limit hole opened on limit disk；Saw blade and bench saw case The saw blade escape groove cooperation opened on plate；

One end of supporting rod be mounted on be drivingly connected plate in the first driving plate on the one side of guide plate；First fixes support Mounted on the other end of supporting rod；One end of gunpowder driving structure is mounted on first and fixes in support；Triggering driving plate is by the Two driving plates and driving installation disk composition；Driving installation disk is mounted on one end of the second driving plate；Trigger the one of driving plate Disk is installed by driving and is mounted in support drive shaft in end；It is to be slidably matched between driving installation disk and support drive shaft； The other end for triggering driving plate is mounted on by the second driving plate on supporting rod；Match for sliding between second driving plate and supporting rod It closes；Second driving plate is connect with the other end of gunpowder driving structure；Side of the driving installation disk towards saw blade is circumferential equably There are six flexible gag lever posts for installation；Six flexible gag lever posts respectively with opened on saw blade six limit axis holes and drive connection plate On opened six limit holes cooperation；

Second shaft and first rotating shaft are mounted between two fixed plates；Second shaft and first rotating shaft are located at two fixations The both ends of plate；The both ends of second shaft are fixedly mounted on two opposite two sides of fixed plate；It installs at the both ends of first rotating shaft On the opposite two sides of two fixed plates；Backwards to first rotating shaft and the second shaft in one of fixed plate in two fixed plates Side the second guide block is installed；Two fixed plates pass through the cooperation for the first guide groove opened on the second guide block and bench saw mounting shell On the inside of bench saw mounting shell；It is drivingly connected one end and the second shaft company that the first driving plate in plate is not installed with limit disk It connects；First driving plate is located at one end of the second shaft；First gear is mounted on the other end of the second shaft；Third gear is mounted on One end of first rotating shaft；Third gear is engaged with first gear；Second gear is mounted on the other end of first rotating shaft；Rack is installed On bench saw mounting shell inner bottom surface；Rack is engaged with second gear；

Driving motor is mounted on by motor support on the outside of bench saw mounting shell, and driving motor is located in bench saw mounting shell and installs bottom The side of shell；Driving motor is far from saw blade；Support drive shaft is located at the output of one end and driving motor on the outside of bench saw mounting shell It is connected by the second belt between axis；

There is faint electricity on the saw blade；

There is compressed spring in the flexible gag lever post；

The arc chute cooperation opened on the arc groove and installation bottom case opened on the guide plate；And the arc opened on guide plate The arc for the arc chute opened on shape slot and installation bottom case is oriented from top to bottom.