CN205130043U - Hand power saw - Google Patents
Hand power saw Download PDFInfo
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- CN205130043U CN205130043U CN201520659239.XU CN201520659239U CN205130043U CN 205130043 U CN205130043 U CN 205130043U CN 201520659239 U CN201520659239 U CN 201520659239U CN 205130043 U CN205130043 U CN 205130043U
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Abstract
The utility model provides a hand power saw, including work platen subassembly and saw bit subassembly, its characterized in that, work platen subassembly below is equipped with and makes work platen subassembly pivoted rotary device. The utility model discloses a set up the rotation that rotary device had realized work platen subassembly between rest block and work platen subassembly to realized having outstanding substantive characteristics and showing progressive to the location of work platen subassembly with to the automatic positioning function of specific angle through locking device and angle location device.
Description
Technical field
The utility model relates to timber processing technique field, more specifically, relates to a kind of hand saw.
Background technology
Existing hand saw generally comprises cradle, as the working plate assembly on cradle and saw blade assembly and nose assembly, wherein said nose assembly is with working plate assembly the mode of being fixedly connected with, this structure is very inconvenience in use, such as, the required angle of cutting can not be switched by fast and flexible.
In order to solve the problems of the technologies described above, market exists a kind of carpenter's hand saw, this hand saw includes a workbench, a backup plate, a platen and a head unit, this workbench, is placed in this work table top, this backup plate, laterally stand on the middle of this workbench, this platen, the high top being arranged on this workbench of frame, and this platen is connected on this backup plate, and this head unit, be installed in this rear, work table top, this head unit includes a seat of honour, one is assembled in the vertical pole above this seat of honour, the one worm screw group being assembled in this seat of honour side, one transverse set is contained in the head on this vertical pole, and the saw blades groups that is assembled in this head front end, this saw blades groups can be assembled on this head in front and back slippingly, when this saw blades groups is along this back-end of machine head displacement, one saw blade of this saw blades groups on this platen towards this backup plate displacement, to perform sawing-like motion to a workpiece, and the center of this head, the hub head end of this platen and the center of this backup plate all fall within same datum mark.Whirligig is arranged at below head by this hand saw, its complex structure, and needs when head rotates to drive saw blade to produce very large pendulum angle, is unfavorable for the setting of workbench.
Summary of the invention
The utility model for overcoming at least one defect described in above-mentioned prior art, provide a kind of can the hand saw of the different cutting angle of flexible adaptation.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is:
A kind of hand saw, comprises working plate assembly and saw blade assembly, is provided with the whirligig that working plate assembly can be made to rotate below described working plate assembly.
Described hand saw also comprises the cradle in order to support working plate assembly, and described whirligig comprises the rotating shaft being arranged on and cradle also can rotate, and described rotating shaft is fixedly connected with described working plate assembly.
Described rotating shaft is arranged with positioning disk, and positioning disk is fixed on cradle directly or indirectly.
Described positioning disk is provided with the stopping means limiting described working plate assembly rotation amplitude.
Described stopping means is be located at the first stopper slot on positioning disk and/or the second stopper slot, and described working plate assembly is provided with the first gag lever post assembly that can coordinate with the first stopper slot and/or the second gag lever post assembly that can coordinate with the second stopper slot.
The locking device that can stop positioning disk and rotating shaft relative motion is provided with between described positioning disk and rotating shaft.
Positioning disk through hole is provided with in the middle part of described positioning disk, described rotating shaft top is provided with convex axle, described positioning disk sleeve is located on convex axle, described locking device is located between positioning disk and convex axle, described locking device comprises screw rod and is located at the first latch segment and the second latch segment between positioning disk and convex axle, described first latch segment is connected with screw flight, second latch segment is connected with screw limiting, at least there are two kinds of operating positions in bolt rotary process, in the first operating position, the power of described first latch segment and/or the second latch segment extruding rotating shaft and positioning disk also generation obstruction rotating shaft and positioning disk relative motion, in the second operating position, described first latch segment and the second latch segment cannot produce the power being enough to hinder rotating shaft and positioning disk relative motion.
Described first latch segment is connected by the first latch segment hinge pin with between screw rod, second latch segment is connected by the second latch segment hinge pin with between screw rod, described second latch segment hinge pin is provided with stopper slot or spacing hole and is set on screw rod by stopper slot or spacing hole, and on described screw rod, the second latch segment hinge pin both sides are respectively equipped with first collar and second collar.
Described positioning disk is provided with angle orientation hole, described screw rod is also provided with the angle positioning device coordinated with angle orientation hole.
Described angle positioning device comprises the cover pull bar be set on described screw rod, one end of cover pull bar is provided with lifting slide block, promote on slide block and be embedded with the alignment pin coordinated with described angle orientation hole, the other end overlapping pull bar is provided with can the draw-gear that moves horizontally of traction casing pull bar.
Described draw-gear comprises connecting rod, spanner and back-moving spring, described connecting rod one end and described cover pull bar directly or indirectly hinged, the other end and described spanner hinged, described spanner and described working plate member hinges, described back-moving spring to be placed on pull bar and at cover pull bar and between rod hinge connection position and spanner articulated position.
Described cover pull bar is provided with positive stop, and it is hinged that described connecting rod and described cover pull bar pass through positive stop.
Be provided with ejector pin seat above described alignment pin, between ejector pin seat and alignment pin, be provided with elastic device.
Described rotating shaft is torque-transmitting axle.
Plane needle bearing is provided with between eccentric shaft and cradle and between torque-transmitting axle and positioning disk.
Described positioning disk is provided with angle graduated scale.
Described working plate assembly comprises pivot angle platform, be located at the working plate above pivot angle platform and the left backup plate that is located on pivot angle platform and right backup plate, described first gag lever post assembly is located on left backup plate, second gag lever post assembly is located on right backup plate, described first stopper slot and the second stopper slot are set to when the first gag lever post assembly and the second gag lever post assembly are when moving along the first stopper slot and the second stopper slot, and the air line distance of the first gag lever post assembly and the second gag lever post assembly changes.
The utility model by arranging the rotation that whirligig achieves working plate assembly between cradle and working plate assembly, the utility model changes the mode that original nose assembly rotates, change to be rotated by working plate assembly, avoid nose assembly and rotarily drive the problem that working plate assembly produced wide-angle, make working plate assembly can adapt to different cutting angles more neatly.In addition the utility model also achieves the location to working plate assembly and the fast positioning function to special angle by locking device and angle positioning device, has outstanding substantive distinguishing features and marked improvement.
Accompanying drawing explanation
Fig. 1 is the structural representation of utility model works platen component and saw blade assembly;
Fig. 2 is the explosive view of the utility model whirligig and locking device;
Fig. 3 is the structural representation of the utility model latch segment and locking hinge pin axle;
Fig. 4 is the utility model locking device structural representation in the locked condition;
Fig. 5 is the enlarged drawing of I part in Fig. 4;
Fig. 6 is the utility model locking device structural representation in a relaxed state;
Fig. 7 is the enlarged drawing of II part in Fig. 6;
Fig. 8 is the sectional view of the utility model whirligig and locking device;
Fig. 9 is the structural representation under the utility model angle positioning device positioning states;
Figure 10 is the enlarged drawing of III part in Fig. 9;
Figure 11 is the structural representation under the utility model angle positioning device removes positioning states;
Figure 12 is the enlarged drawing of IV part in Figure 11;
Figure 13 is the structural representation that the utility model promotes slide block;
Figure 14 is the structural representation of the utility model alignment pin and ejector pin seat;
Figure 15 is the structural representation of utility model works platen component;
Figure 16 is the enlarged drawing of Figure 15 part-structure;
Figure 17 is the schematic diagram of utility model works platen component different rotation angle;
Figure 18 is the utility model positioning disk and left backup plate and right backup plate matching relationship schematic diagram;
Figure 19 is the utility model positioning disk top view;
Figure 20 is the function relation figure of left backup plate, right backup plate spacing.
Working plate assembly 100, pivot angle platform 101, working plate 102, left backup plate 103, right backup plate 104, reinforcement 105, first gag lever post assembly 106, second gag lever post assembly 107, the body of rod 108, spacer 109, bearing 110, backup plate stopper slot 111, backup plate spacer 112
Saw blade assembly 200, installing plate 201, drive motors 202, saw blade 203, guide runner 204
Nose assembly 300, guide rail 301
Whirligig 400, cradle 401, eccentric shaft 402, positioning disk 403, first plane needle bearing 404, second plane needle bearing 405, convex axle 406, first support platform 407, second support platform 408, outer toroid 409, interior annulus 410, location disk hole 411, first stopper slot 412, second stopper slot 413, first stop face 414, second stop face 415, screw rod 416, first latch segment 417, second latch segment 418, first latch segment hinge pin 419, second latch segment hinge pin 420, first collar 421 and second collar 422, screwed hole 423, first jointed shaft 424, first through hole 425, groove 427, second jointed shaft 428, second through hole 429, cover pull bar 433, promote slide block 434, alignment pin 435, 0 degree of locating hole 426, 45 degree of locating holes 436, angle graduated scale 437, amplify microscope base 438, magnifying glass 439, the first side wall 440, second sidewall 441, connecting plate 442, low supporting surface 443, high supporting surface 444, inclined-plane 445, Access Division 446, bearing pin 447, ejector pin seat 448, spring 449, connecting rod 450, spanner 451, back-moving spring 452, positive stop 453, connector 454.
Detailed description of the invention
Accompanying drawing, only for exemplary illustration, can not be interpreted as the restriction to this patent; In order to better the present embodiment is described, some parts of accompanying drawing have omission, zoom in or out, and do not represent the size of actual product; To those skilled in the art, in accompanying drawing, some known features and explanation thereof may be omitted is understandable.Describe position relationship in accompanying drawing only for exemplary illustration, the restriction to this patent can not be interpreted as.Annexation described by this patent should do the most wide in range understanding, and namely to comprise between parts with parts direct is connected for this annexation, also comprises indirect connection, and so-called indirectly connection is referred to and connected by miscellaneous part between two parts.
Embodiment 1
As shown in Figure 1, hand saw described in the utility model comprises cradle, as the working plate assembly 100 on cradle and saw blade assembly 200 and nose assembly 300, wherein cradle is mainly in order to support working plate assembly 100, therefore, the version of cradle can be variation, such as, can be tabular pedestal, also can be supporting structure, as long as support effect can be played.Described saw blade assembly 200 is arranged on nose assembly 300, nose assembly 300 is provided with guide rail 301, saw blade assembly 200 comprises installs version 201, installing plate 201 is provided with drive motors 202 and saw blade 203, rotating shaft and the saw blade 203 of drive motors 202 are in transmission connection, this comprise between drive motors 202 with saw blade 203 direct that be in transmission connection is connected and indirectly connects, such as, drive motors drives saw blade 203 to rotate by gear or chain tradition, described installing plate 201 is also provided with guide runner 204, guide runner 204 to be set on guide rail 301 thus saw blade assembly 200 can be made can to move along guide rail 301.The miscellaneous part of saw blade assembly 200 and nose assembly 300 all adopts prior art, in this no longer repeated description.
As shown in Fig. 2,15,16, utility model works platen component 100 comprises pivot angle platform 101, working plate 102 and left backup plate 103, right backup plate 104.
Described pivot angle platform 101 is support body frame structure, in order to increase its load bearing stength, be preferably metal material to make, many reinforcements 105 are provided with in the framework of pivot angle platform 101, can increase the intensity of pivot angle platform 101 further, many crisscross reinforcements 105 can also provide installing space for the installation of miscellaneous part.
Described working plate 102 is arranged on pivot angle platform 101, is generally fixed by screw or other modes, and working plate 102 is used for the processed timber of support, and be placed in by timber on working plate 102, namely available saw blade 203 is to its processing.
Described left backup plate 103 and right backup plate 104 are installed on pivot angle platform 101 the same side near saw blade assembly 200, benchmark is leaned on for timber processing provides an operation, described left backup plate 103 and right backup plate 104 all along pivot angle platform 101 while arrange, the two is positioned at same straight line, the side of length sum roughly in pivot angle platform 101 of left backup plate 103 and right backup plate 104 is equal, the right part of left backup plate 103 is adjacent with the left part of right backup plate 104, and there is certain interval between both ends for saw blade 203 and pass.
The whirligig 400 that working plate assembly can be made to rotate is provided with between described cradle and working plate assembly 100.Specifically, as shown in Fig. 2 to Fig. 8, described whirligig 400 support is on cradle 401, and whirligig 400 comprises rotating shaft 402, positioning disk 403, first plane needle bearing 404 and the second plane needle bearing 405.
Rotating shaft described in the present embodiment is eccentric shaft, described eccentric shaft 402 is arranged on cradle 401, eccentric shaft 402 is hollow shaft-like structure, the stepped structure of its section, as shown in Figure 8, the middle part of eccentric shaft 402 is provided with convex axle 406, the below periphery of convex axle 406 is provided with the first support platform 407, first support platform 407 outer peripheral edge is provided with the second support platform 408, described convex axle 406, first support platform 407, the top level elevation of the second support platform 408 reduces formation step structure successively, the outer toroid 409 of described convex axle 406 and the center of circle of interior annulus 410 be not at same position, can not be overlapping, therefore, as can be seen from its sectional view (Fig. 8), the thickness of described convex axle 406 is also uneven, but some positions are relatively thick, some positions are relatively thin, certain described outer toroid 409 and interior annulus 410 can be circular, also can be oval.The convex axle 406 that described pivot angle platform 101 is undertaken on eccentric shaft 402 is fixedly connected with convex axle 406, preferably adopts screw to connect.The rotation of working plate assembly 100 can be realized by eccentric shaft 402.
Conveniently eccentric shaft 402 rotates, the below of eccentric shaft 402 second support platform 408 is provided with the first plane needle bearing 404, first plane needle bearing 404 is undertaken between cradle 401 and eccentric shaft 402, and eccentric shaft 402 can be made to rotate freely on cradle 401.
Described positioning disk 403 is for being roughly circular laminated structure, it is location disk hole 411 in the middle part of positioning disk 403, positioning disk 403 to be set on the convex axle 406 of eccentric shaft 402 by location disk hole 411 and to be fixed on cradle 401 directly or indirectly, what is called is such as fixedly connected with the miscellaneous part be fixed on cradle 401 indirectly, preferentially make to be screwed, welding or other fixed forms can certainly be adopted.
Due to the effect of eccentric shaft 402, make the gap between eccentric crown of roll axle 406 and positioning disk 403 be not a constant value, but the gap in some place is bigger, the gap in some place is smaller.The second plane needle bearing 405 is provided with between described positioning disk 403 and eccentric shaft 402, concrete, described second plane needle bearing 405 is arranged on above eccentric shaft second support platform 408 in order to support positioning disk 403, under the cooperation of the first plane needle bearing 404 and the second plane needle bearing 405, eccentric shaft 402 can rotate freely.
Described positioning disk 403 is provided with the stopping means limiting described working plate assembly 100 rotation amplitude, this stopping means is the first stopper slot 412 and the second stopper slot 413 be located on positioning disk 403, corresponding, described working plate assembly 100 is provided with first gag lever post assembly 106 and the second gag lever post assembly 107 that can coordinate with the first stopper slot 412 and the second stopper slot 413 respectively.
Specifically, described first stopper slot 412 is located at outer, positioning disk 403 side, the two ends of the first stopper slot 412 are respectively equipped with the first stop face 414 and the second stop face 415, described first gag lever post assembly 106 snaps in the first stopper slot 412, and can move back and forth between the first stop face 414 and the second stop face 415 along the track of the first stopper slot 412, as shown in figure 18.
It is relative with the first stopper slot 412 that described second stopper slot 413 is located at positioning disk 403 opposite side, is annular trough body structure, and described second gag lever post assembly 107 is embedded in the second stopper slot 413, and can slide in the second stopper slot 413, as shown in figure 18.
As shown in Figure 15,16,18, described first gag lever post assembly 106 is fixedly installed on left backup plate 103, second gag lever post assembly 107 is fixedly installed on right backup plate 104, first gag lever post assembly 106 comprises the body of rod 108 be fixedly connected with left backup plate 103, in order to the convenience of installing, the described body of rod 108 is preferably bolt or screw.The body of rod 108 is arranged with spacer 109 and bearing 110, described spacer 109 is in order to location bearing 110, prevent bearing 110 upper and lower displacement on the body of rod 108, when the first gag lever post assembly 106 coordinates with the first stopper slot 412, described bearing 110 contacts with the edge of the first stopper slot 412, can reduce friction therebetween.Described second gag lever post assembly 107 structure is identical with the first gag lever post assembly 106, no longer repeats to discuss.
As shown in Fig. 2 to Fig. 8, between described positioning disk 403 and convex axle 406, be provided with the locking device that can stop positioning disk 403 and the relative motion of convex axle 406.Described locking device comprises screw rod 416, first latch segment 417 and second latch segment 418, first latch segment hinge pin 419, second latch segment hinge pin 420, first collar 421 and second collar 422.
One end of described screw rod 416 is provided with screw thread, screw rod 416 is divided into two parts, i.e. thread segment and smooth section.Described pivot angle platform 101 is provided with the through hole passed for screw rod 416, and screw rod 416 can be made to extend out from convex axle 406 position.
Described first latch segment 417 and the second latch segment 418 are preferably semilune, support on eccentric shaft first support platform 407, and in the disk hole of described location, between convex axle 406 and positioning disk 403, as shown in Figure 8.Certainly, the first latch segment 417 and the second latch segment 418 also can be other shapes that other can match with positioning disk 403 with convex axle 406.Described first latch segment 417 is directly threaded with screw rod 416, or be threaded with screw rod 416 by the first latch segment hinge pin 419, described first latch segment hinge pin 419 comprises the screwed hole 423 that can engage with screw rod 416 and the first jointed shaft 424 be located at below screwed hole 423, described first latch segment 417 is provided with the first through hole 425, first jointed shaft 424 and inserts in this first through hole 425 and to be flexibly connected with the first through hole 425.
Described second latch segment 418 is connected with screw rod 416 axial limiting, so-called spacing connection herein refers between this second latch segment 418 and screw rod 416 it is a kind of spacing matching relationship, namely the annexation between screw rod 416 and the second latch segment 418 is mainly reflected in spacing to the second latch segment 418 of screw rod 416, namely makes the displacement of the second latch segment 418 or motion can not depart from the constraint of screw rod 416.In order to realize this spacing connection, can by arranging the stopper slot or spacing hole that can coordinate with screw rod 416 directly or indirectly on the second latch segment 418, so-called stopper slot or the spacing hole of indirectly arranging on the second latch segment 418 refers on the parts that stopper slot or spacing hole to be arranged and be that the second latch segment 418 directly or indirectly connects, with regard to the present embodiment, second latch segment 418 and screw rod 416 are linked together by the second latch segment hinge pin 420 by the present embodiment, first, a second latch segment hinge pin 420 should be provided, this the second latch segment hinge pin 420 comprises a groove 427, the second jointed shaft 428 is provided with below groove 427, described second latch segment 418 is provided with the second through hole 429, second jointed shaft 428 to insert in this second through hole 429 and is flexibly connected with the second through hole 429.
The restricted screw rod of first collar not with the effect of the first latch segment disengaging, but support the second latch segment hinge pin when Main Function is tensioning and produce tensile force.When unclamping, then second collar is leaned on to the support of the second locking pulling force!
Conveniently support the extruding force that the second latch segment hinge pin 420 produces when the first latch segment 417 and the second latch segment 418 relative motion, the present embodiment also on screw rod, the second latch segment hinge pin two is respectively equipped with first collar 421 and second collar 422, first collar 421 and second collar 422 are fixedly connected on screw rod 416, specifically, first collar 421 is set in the end of the second latch segment 418 left end, thread segment, and second collar 422 is set in the second latch segment 418 right-hand member.
The utility model in use, there is two states in described locking device, i.e. relaxation state and locking state, in a relaxed state, as Fig. 6, shown in 7, first latch segment 417, second latch segment 418 and be a kind of contact free state between convex axle 406 and positioning disk 403, i.e. the first latch segment 417, second the latch segment 418 and power stoping convex axle 406 and positioning disk 403 relative motion can not be produced between convex axle 406 and positioning disk 403, namely eccentric shaft 402 and the first latch segment 417 is driven by pivot angle platform 101 by stirring working plate assembly 100, second latch segment 418 rotates, thus realize the change of working plate assembly angle.
When locking action, as shown in Figure 4,5, by rotating screw bolt 416, first latch segment 417 is moved away from two latch segment 418 directions along screw rod 416, the first latch segment 417 and/or the second latch segment 418 is made to produce extruding force to convex axle 406 and positioning disk 403, this extruding force makes the first latch segment 417 and/or the second latch segment 418 relative to producing enough large frictional force when convex axle 406 and positioning disk 403 displacement and then hindering convex axle 406 and positioning disk 403 relative motion, finally reach locking state, producing locating effect is.When locking state removed by needs, only need rotary screw 416 in the opposite direction, first latch segment 417 is moved along screw rod 416 towards two latch segment 418 directions, the first latch segment 417 and/or the extruding force of the second latch segment 418 to convex axle 406 and positioning disk 403 is made to reduce until the first latch segment 417 and the second latch segment 418 can be free to slide relative to convex axle 406 and positioning disk 403 gradually, as shown in Figure 6,7.
Conveniently realize the automatic location of table assembly angle, positioning disk 403 described in this patent is provided with some angle orientation holes, described screw rod 416 is also provided with the angle positioning device coordinated with angle orientation hole.Described angle positioning device comprises the cover pull bar 433 be set on described screw rod 416, one end of cover pull bar 433 is provided with and promotes slide block 434, promote on slide block 434 and be embedded with the alignment pin 435 coordinated with described angle orientation hole, the other end overlapping pull bar 433 is provided with can the draw-gear that moves horizontally of traction casing pull bar.
Described angle orientation hole can be arranged as required, such as the present embodiment is provided with 0 degree of locating hole 426 and 45 degree of locating holes 436 on positioning disk, simultaneously, conveniently determine the anglec of rotation of working plate assembly, the present embodiment is also provided with angle graduated scale 437 on positioning disk, for convenience of reading angular scale value size, the present embodiment is also provided with and amplifies microscope base 438 and be fixed on the magnifying glass 439 amplified on microscope base 438 on pivot angle platform.
As shown in Fig. 9 to 13, described lifting slide block 434 is by the first side wall 440, second sidewall 441 and connecting plate 442 form, the first side wall 440, second sidewall 441 all comprises a low supporting surface 443 and a high supporting surface 444, connected by inclined-plane 445 between low supporting surface 443 and high supporting surface 444, the first side wall 440, second sidewall 441 is arranged on the both sides of described connecting plate 442 symmetrically, form a rail plate, specifically, described connecting plate 442 is connected to the first side wall 440, low supporting surface 443 end of the second sidewall 441, described connecting plate 442 is connected with cover pull bar 433, described the first side wall 440, second sidewall 441 and connecting plate 442 can be one-body molded.
Described alignment pin 435 comprises an Access Division 446 and a bearing pin 447, bearing pin 447 is located at below Access Division 446, described alignment pin 435 is embedded at and promotes on slide block 434, particularly, Access Division 446 frame of alignment pin on the first side wall 440, second sidewall 441, and can slide along the first side wall 440, second sidewall 441 under tractive force.Ejector pin seat 448 is also fixed with above described Access Division 446, alignment pin 435 is connected in ejector pin seat 448, and can vertically upper and lower displacement in ejector pin seat 448, but cannot lateral displacement, brute spring 449 is provided with between Access Division 446 and ejector pin seat 448, when described alignment pin 435 is arranged to make it move with screw rod 416 on positioning disk, described angle orientation hole can be dropped on the movement locus of alignment pin 435 just.
Described draw-gear comprises connecting rod 450, spanner 451 and back-moving spring 452, described connecting rod 450 is ship shape, its one end and described cover pull bar 433 hinged, described hinged both to have comprised between two parts directly hinged, and what also comprise by the 3rd parts between two parts is indirectly hinged.In the present embodiment, described cover pull bar 433 is provided with positive stop 453, and described connecting rod 450 is hinged by positive stop 453 with described cover pull bar 433.Connecting rod 450 other end and described spanner 451 hinged, described spanner 451 end is provided with rectangle connector 454, the two ends of connector 454 are respectively provided with a through hole, one of them through hole and connecting rod 450 hinged, another through hole is hinged on pivot angle platform 101, described pivot angle platform 101 is provided with the through hole passed for screw rod 416, described back-moving spring 452 is placed on pull bar 433 and in cover pull bar 433 and connecting rod 450 articulated position with between spanner 451 and pivot angle platform 101 articulated position, namely back-moving spring 452 is between positive stop 453 and pivot angle platform 101.
When stirring working plate assembly 100, screw rod 416 and the alignment pin 435 be connected with screw rod together will be followed working plate assembly 100 and be rotated, when above alignment pin 435 moves to angle orientation hole, alignment pin 435 just inserts in angle orientation hole under the effect of spring 449, thus achieve the angle quick position of working plate assembly 100, then, by screwing screw rod 416, working plate assembly 100 is fixed, now, described draw-gear is in original state, in an initial condition, the back-moving spring 452 of draw-gear is nature elongation state, do not produce elastic force or do not have to produce the elastic force enough causing characteristic effect, alignment pin 435 is on the low supporting surface 443 of lifting slide block 434, as Fig. 9, shown in 10.When angle orientation removed by needs, only need stir spanner 451, the displacement to the right of cover pull bar 433 is driven by connecting rod 450, as shown in figure 11, compression reseting spring 452 simultaneously, described lifting device 434 is synchronous displacement to the right under the drive of cover pull bar 433, and gradually by alignment pin 435 from low supporting surface 443 through the paramount supporting surface 444 of inclined-plane 445 transition, meanwhile, alignment pin 435 leaves angle orientation hole gradually, removes the location to angle.When again pulling spanner 451 and making it return original state, described cover pull bar 433 drives lifting slide block 434 and alignment pin 435 to be back to original state in the effect Regression original state of back-moving spring 452 simultaneously.
Embodiment 2
The present embodiment improves part-structure on the basis of embodiment 1, or proposes replacement scheme to part-structure, and all the other features are identical with embodiment 1.
Present embodiments provide a kind of alternate embodiments of eccentric shaft, the present embodiment adopts conventional axle construction, this axle convex axle 406, first support platform 407, second support platform 408 same with eccentric shaft described in embodiment 1, but the conventional axle outer toroid 409 that the present embodiment uses and the center of circle of interior annulus 410 are overlapping, and namely the thickness of convex axle 406 is uniformities.Just when mounted, make the axis misalignment of the conventional axis of axle of the present embodiment and the location disk hole 411 of positioning disk, namely make the gap between convex axle and positioning disk bigger than normal at some positions, less than normal at other position.
Embodiment 3
The present embodiment improves part-structure on the basis of embodiment 1, or proposes replacement scheme to part-structure, and all the other features are identical with embodiment 1.
As shown in Figure 18 to 20, the connected mode of the present embodiment to the left backup plate 103 in embodiment 1 and right backup plate 104 is improved, the present embodiment is respectively equipped with two backup plate stopper slots 111 at left backup plate 103 and right backup plate 104, through this backup plate stopper slot 111, left and right backup plate is arranged on pivot angle platform 101 by screw, such two backup plates just can slide in backup plate stopper slot 111 limited range, facilitate the adjustment of the distance between two backup plates.In order to make the slip of backup plate more convenient further, can also sheathed backup plate spacer 112 on described screw.
The present embodiment also improves the first stopper slot 412 and the second stopper slot 413 on positioning disk further, make the first gag lever post assembly 106 and the second gag lever post assembly 107 when moving along the first stopper slot 412 and the second stopper slot 413, the air line distance S1 of the first gag lever post assembly 106 and the second gag lever post assembly 107 changes according to the rotational angle of working plate assembly 100, this variation relation is preferably a kind of linear functional relation, namely along with the increase of rotational angle, S1 also can strain greatly mutually, spacing between left backup plate and right backup plate is widened, operation for saw blade 203 provides enough spaces, now by 0 degree of position of definition working plate assembly 100, work as a left side, 0 degree of position of working plate assembly 100 is defined as during the axes normal of right backup plate and saw blade assembly 200, namely the position shown in Fig. 1.
Obviously, above-described embodiment of the present utility model is only for the utility model example is clearly described, and is not the restriction to embodiment of the present utility model.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all embodiments.All do within spirit of the present utility model and principle any amendment, equivalent to replace and improvement etc., within the protection domain that all should be included in the utility model claim.
Claims (16)
1. a hand saw, comprises working plate assembly and saw blade assembly, it is characterized in that, is provided with the whirligig that working plate assembly can be made to rotate below described working plate assembly.
2. hand saw according to claim 1, it is characterized in that, described hand saw also comprises the cradle in order to support working plate assembly, and described whirligig comprises the rotating shaft being arranged on and cradle also can rotate, and described rotating shaft is fixedly connected with described working plate assembly.
3. hand saw according to claim 2, is characterized in that, described rotating shaft is arranged with positioning disk, and positioning disk is fixed on cradle directly or indirectly.
4. hand saw according to claim 3, is characterized in that, described positioning disk is provided with the stopping means limiting described working plate assembly rotation amplitude.
5. hand saw according to claim 4, it is characterized in that, described stopping means is be located at the first stopper slot on positioning disk and/or the second stopper slot, and described working plate assembly is provided with the first gag lever post assembly that can coordinate with the first stopper slot and/or the second gag lever post assembly that can coordinate with the second stopper slot.
6. hand saw according to claim 3, is characterized in that, is provided with the locking device that can stop positioning disk and rotating shaft relative motion between described positioning disk and rotating shaft.
7. hand saw according to claim 6, it is characterized in that, positioning disk through hole is provided with in the middle part of described positioning disk, described rotating shaft top is provided with convex axle, described positioning disk sleeve is located on convex axle, described locking device is located between positioning disk and convex axle, described locking device comprises screw rod and the first latch segment of being located between positioning disk and convex axle and the second latch segment, described first latch segment is connected with screw flight, second latch segment is connected with screw limiting, at least there are two kinds of operating positions in bolt rotary process, in the first operating position, the power of described first latch segment and/or the second latch segment extruding rotating shaft and positioning disk also generation obstruction rotating shaft and positioning disk relative motion, in the second operating position, described first latch segment and the second latch segment cannot produce the power being enough to hinder rotating shaft and positioning disk relative motion.
8. hand saw according to claim 7, it is characterized in that, described first latch segment is connected by the first latch segment hinge pin with between screw rod, second latch segment is connected by the second latch segment hinge pin with between screw rod, described second latch segment hinge pin is provided with stopper slot or spacing hole and is set on screw rod by stopper slot or spacing hole, and on described screw rod, the second latch segment hinge pin both sides are respectively equipped with first collar and second collar.
9. hand saw according to claim 7, is characterized in that, described positioning disk is provided with angle orientation hole, described screw rod is also provided with the angle positioning device coordinated with angle orientation hole.
10. hand saw according to claim 9, it is characterized in that, described angle positioning device comprises the cover pull bar be set on described screw rod, one end of cover pull bar is connected with lifting slide block, promote on slide block and be embedded with the alignment pin coordinated with described angle orientation hole, the other end overlapping pull bar is provided with can the draw-gear that moves horizontally of traction casing pull bar.
11. hand saws according to claim 10, it is characterized in that, described draw-gear comprises connecting rod, spanner and back-moving spring, described connecting rod one end and described cover pull bar directly or indirectly hinged, the other end and described spanner hinged, described spanner and described working plate member hinges, described back-moving spring to be placed on pull bar and at cover pull bar and between rod hinge connection position and spanner articulated position.
12. hand saws according to claim 11, is characterized in that, described cover pull bar is provided with positive stop, and it is hinged that described connecting rod and described cover pull bar pass through positive stop.
13. hand saws according to claim 10, is characterized in that, are provided with ejector pin seat above described alignment pin, are provided with elastic device between ejector pin seat and alignment pin.
14. according to the arbitrary described hand saw of claim 2 to 13, and it is characterized in that, described rotating shaft is eccentric shaft.
15. hand saws according to claim 14, is characterized in that, are provided with plane needle bearing between eccentric shaft and cradle and between eccentric shaft and positioning disk.
16. hand saws according to claim 5, it is characterized in that, described working plate assembly comprises pivot angle platform, be located at the working plate above pivot angle platform and the left backup plate that is located on pivot angle platform and right backup plate, described first gag lever post assembly is located on left backup plate, second gag lever post assembly is located on right backup plate, described first stopper slot and the second stopper slot are set to when the first gag lever post assembly and the second gag lever post assembly are when moving along the first stopper slot and the second stopper slot, and the air line distance of the first gag lever post assembly and the second gag lever post assembly changes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520659239.XU CN205130043U (en) | 2015-08-28 | 2015-08-28 | Hand power saw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520659239.XU CN205130043U (en) | 2015-08-28 | 2015-08-28 | Hand power saw |
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| Publication Number | Publication Date |
|---|---|
| CN205130043U true CN205130043U (en) | 2016-04-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520659239.XU Active CN205130043U (en) | 2015-08-28 | 2015-08-28 | Hand power saw |
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| CN (1) | CN205130043U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106476083A (en) * | 2015-08-28 | 2017-03-08 | 佛山佳加机械有限公司 | A kind of hand saw |
-
2015
- 2015-08-28 CN CN201520659239.XU patent/CN205130043U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106476083A (en) * | 2015-08-28 | 2017-03-08 | 佛山佳加机械有限公司 | A kind of hand saw |
| CN106476083B (en) * | 2015-08-28 | 2020-02-07 | 佛山佳加机械有限公司 | Hand-pulling saw |
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