CN201205712Y - Tube cutter - Google Patents
Tube cutter Download PDFInfo
- Publication number
- CN201205712Y CN201205712Y CNU2008200876218U CN200820087621U CN201205712Y CN 201205712 Y CN201205712 Y CN 201205712Y CN U2008200876218 U CNU2008200876218 U CN U2008200876218U CN 200820087621 U CN200820087621 U CN 200820087621U CN 201205712 Y CN201205712 Y CN 201205712Y
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- China
- Prior art keywords
- spinal plate
- knife rest
- feed
- cutter
- blade
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a hand shearing tool. A tube shearing knife comprises a F-shaped knife holder, knife blades which can slide toward the short edge inside a knife holder groove, a rack which is arranged at the back of the knife blades, a gear which is meshed with the rack on the knife blades and arranged on the knife holder, an upper handle which takes a gear shaft as the pivot, and a return spring which is connected between the tail part of the knife blades and the rear part of the knife holder. The tube shearing knife is characterized in that a feed spinal plate mechanism for pushing the gear to rotate is arranged on the upper handle; a stop spinal plate mechanism is arranged on the knife holder beside the rack at the rear part of the knife blades; a connecting sheet is arranged between the feed spinal plate of the feed spinal plate mechanism and the stop spinal plate of the stop spinal plate mechanism; a straight sliding groove for the knife blades is arranged on the main body of the knife blades; and a pin rod which is fixed on the knife holder is positioned in the sliding groove for the knife blades. The upper handle is in a folding structure; the rear part of the knife holder is provided with a lower handle; and a folding structure is arranged between the lower handle and the rear part of the knife holder. The utility model is a tube shearing knife with simple and reasonable structure, safe and reliable operation and convenient carrying, which is suitable for shearing the PVC tubes with big calibers.
Description
Technical field
The utility model relates to manual cutting implement, specifically a kind of tube scissors of shearing big caliber PVC (plastic cement) pipe.
Background technology
The shearing employing of common PVC (plastic cement) pipe is manual or power saws is sawed-off, wastes time and energy when operation.Simultaneously, the sawing mouth is inhomogeneous, and overlap or burr appear in regular meeting, influences the use of pipe.Chinese patent, the patent No. are 02217351.x, and the utility model patent that name is called " the plastic cement pipe is cut fast " has disclosed a kind of plastic conduit scissors, has solved above-mentioned problem.It is cut the composite support frame by pipe and cuts flexible handle axle and pipe on the composite support frame and cut the flexible handle that the composite support frame links to each other and formed by being located at pipe.The front portion that pipe is cut the composite support frame is provided with curved edge, and the rear portion is a fixed handle, and flexible handle is provided with gear.Pipe is cut and also is provided with one on the composite support frame, and this axle is cut the composite support frame with movable blades and pipe and connected together.The rear portion of movable blades is provided with the movable blades gear, and this movable blades gear is meshed with the flexible handle gear.Should " the plastic cement pipe is cut fast " can once cut off pipe.But its obvious defects is, can only shear the less pvc pipe of caliber, for caliber greater than 100 millimeters pvc pipe with powerless.
Existing market has a kind of tube scissors of shearing the bigger pvc pipe of caliber, and it comprises knife rest and match with knife rest and is incorporated in the blade that slides in the cutter saddle trough.The back of blade is provided with tooth bar.Knife rest is the F shape, and the cutting edge of blade is facing to the minor face of knife rest F shape.The gear that is meshed with the tooth bar of blade is housed on knife rest, is that pivot is provided with one handle with the gear shaft, is equipped with to promote the feed spinal plate mechanism that gear rotates on handle.On the other knife rest of gear, the withdrawing spinal plate mechanism that stops gear to rotate is installed.Be connected with return spring between the afterbody of blade and the knife rest.Have the blade loose slot on the main body of blade, the pin rod that is fixed on the knife rest is positioned at the blade loose slot.It is 120 millimeters relatively large pvc pipe that this tube scissors can be sheared caliber.But its shortcoming is very high to the required precision of feed spinal plate mechanism processing.When another shortcoming is withdrawing, must promote the withdrawing spinal plate forward with hand, make the teeth of withdrawing spinal plate disengaging gear, so that return spring retracts blade by the operator.Operation is trouble.More seriously because the required precision of feed spinal plate mechanism processing is very high, feed spinal plate and withdrawing spinal plate mechanism all will work by gear again.When the precision of feed spinal plate has discrepancy slightly, though having broken away from gear, the withdrawing spinal plate desires withdrawing, the feed spinal plate still is stuck on the teeth of gear, causes the withdrawing failure.The shearing work meeting is forced to pause like this.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, to society disclose a kind of simple and reasonable, handling safety reliable, be easy to carry, be applicable to the tube scissors of shearing big caliber PVC (plastic cement) pipe.
The utility model solves the problems of the technologies described above the technical scheme that is adopted:
A kind of tube scissors, comprise " F " shape knife rest, cutting edge is facing to the minor face of " F " shape knife rest, the blade that can in cutter saddle trough, slide to minor face, be arranged on the tooth bar at blade back, the gear that is meshed with tooth bar on the blade is housed on the knife rest, with the gear shaft is that pivot is provided with a upper handle, be connected the return spring between blade afterbody and the knife rest rear portion, it is characterized in that: be equipped with on the upper handle and promote the feed spinal plate mechanism that gear rotates, be equipped with on the other knife rest of blade back tooth bar and stop cutter spinal plate mechanism, the feed spinal plate of feed spinal plate mechanism and stop cutter spinal plate mechanism stop be provided with brace between the cutter spinal plate; Have a straight blade sliding tray on the main body of blade, the pin rod (5) that is fixed on the knife rest is positioned at the blade sliding tray.
Described feed spinal plate mechanism comprises the feed spinal plate that matches with the teeth of gear, and the feed spinal plate is articulated in feed spinal plate pivot pin and feed spinal plate torsion spring on the upper handle.
Described stop cutter spinal plate mechanism comprise match with blade back tooth bar stop the cutter spinal plate, will stop the cutter spinal plate and be articulated in the pivot pin on the other knife rest of blade back tooth bar and stop cutter spinal plate torsion spring.
The feed spinal plate of feed spinal plate mechanism and stop the chute of You Elliptical circle on the brace that stops being provided with between the cutter spinal plate of cutter spinal plate mechanism; Two of brace is respectively equipped with the bottom that pin rod connects the feed spinal plate and stops the cutter spinal plate, and the pin rod that stops cutter spinal plate bottom is arranged in the chute of Suo Shu De Elliptical circle.
The measure of taking for further optimization technique scheme also comprises:
The opening part of described " F " knife rest is provided with a fender bracket, and fender bracket is a pivot with the fender bracket axle on the knife rest, is provided with the cutter groove in the fender bracket, and the head steady pin of fender bracket buckles in the snap close that is provided with on the knife rest.The front portion of described knife rest bottom is provided with dismountable preceding foot rest.
Described upper handle is foldable structure; Handle is set at the knife rest rear portion, is foldable structure between lower handle and knife rest rear portion.
Described upper handle foldable structure comprises: with the connecting pin of two joint connections before and after the upper handle, lateral pin on the deutomerite upper handle, extension spring between described connecting pin and lateral pin, the fixedly connected groove of prosthomere upper handle rear end, the adjustment hole on folding link slot and the deutomerite upper handle.
Described lower handle foldable structure comprises: the connecting pin that lower handle is connected with the knife rest rear end, lateral pin on the lower handle, extension spring between described knife rest rear end connecting pin and lower handle lateral pin, the fixedly connected groove in knife rest rear end, the adjustment hole on folding link slot and the lower handle.
Because the utility model has been taked above-mentioned technical measures, it compared with prior art has following advantage:
1, blade prolongs cutter saddle trough and insert groove moving linearly, and the pvc pipe of putting into the knife rest opening part is implemented to shear, and can shear the big PVC of diameter (plastic cement) pipe, and laborsaving, high efficiency.
2, the feed spinal plate of feed spinal plate mechanism and stop cutter spinal plate mechanism stop be provided with brace between the cutter spinal plate, make the feed spinal plate and stop cutter spinal plate action and very coordinate, guarantee that apparatus reliably uses.
3, simple in structure, it is low to make required precision.
4, handle is collapsible, can make the small product size miniaturization, has brought convenience with carrying for packed and transported.
Description of drawings
Fig. 1 is the structural representation (broken section) of the utility model embodiment;
Fig. 2 is the vertical view of the utility model embodiment;
Fig. 3 is the folded state schematic diagram of the utility model embodiment;
Fig. 4 is the side view of the utility model embodiment;
Fig. 5 is that the upper handle of the utility model embodiment shakes time-out, feed spinal plate and stop cutter spinal plate ratchet and enter gear teeth and rack tooth dental phenomenon schematic diagram respectively;
Fig. 6 begins when pressing down after the upper handle of the utility model embodiment has shaken, and feed spinal plate ratchet to pressing down, stops the view that cutter spinal plate ratchet breaks away from the tooth bar teeth with gear;
Fig. 7 is the high time-out that shakes of the upper handle of the utility model embodiment, feed spinal plate and stop cutter spinal plate ratchet respectively separating tooth wheel teeth and rack tooth dental phenomenon schematic diagram, and this moment, return spring will retract blade.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described in further detail.
With reference to accompanying drawing 1,3, the utility model comprises " F " shape knife rest 8, cutting edge is facing to the minor face of " F " shape knife rest, the blade 4 that can in cutter saddle trough, slide to minor face, be arranged on the tooth bar 41 at blade 4 backs, the gear 1 that is meshed with tooth bar 41 on the blade 4 is housed on the knife rest 8, with gear shaft 101 is that pivot is provided with a upper handle 5, be connected the return spring 7 between blade 4 afterbodys and knife rest 8 rear portions, it is characterized in that: be equipped with on the upper handle 5 and promote the feed spinal plate mechanism that gear 1 rotates, be equipped with on the other knife rest 8 of blade 4 back tooth bars and stop cutter spinal plate mechanism, the feed spinal plate 2 of feed spinal plate mechanism and stop cutter spinal plate mechanism stop be provided with brace 12 between the cutter spinal plate 3; Have a straight blade sliding tray 42 on the main body of blade 4, the pin rod 43 that is fixed on the knife rest 8 is positioned at blade sliding tray 42.
Described feed spinal plate mechanism comprises the feed spinal plate 2 that matches with the teeth 102 of gear, and the feed spinal plate is articulated in feed spinal plate pivot pin 22 and feed spinal plate torsion spring 23 on the upper handle 5.
Described stop cutter spinal plate mechanism comprise match with blade 4 back tooth bars 41 stop cutter spinal plate 3, will stop cutter spinal plate 3 and be articulated in the pivot pin 32 on the other knife rest 8 of blade 4 back tooth bars and stop cutter spinal plate torsion spring 33.
The feed spinal plate 2 of feed spinal plate mechanism and stop the chute 121 of You Elliptical circle on the brace 12 that stops between the cutter spinal plate 3 to be provided with of cutter spinal plate mechanism; Two of brace is respectively equipped with the bottom that pin rod 21,31 connects the feed spinal plate and stops the cutter spinal plate, and the pin rod 31 that stops cutter spinal plate bottom is arranged in the chute 121 (Fig. 3) of Suo Shu De Elliptical circle.
The opening part of described " F " shape knife rest is provided with a fender bracket 11, and fender bracket is a pivot with the fender bracket axle 112 (Fig. 3) on the knife rest, is provided with cutter groove 113 in the fender bracket, and the head steady pin 111 of fender bracket 11 buckles in the snap close 10 that is provided with on the knife rest 8.The effect of fender bracket 11 is the safety of running of protection blade and operation, and work package is stabilized in the knife rest mouth.
The front portion of described knife rest 4 bottoms is provided with dismountable preceding foot rest 9.Before foot rest 9 form high resilience by plastic production.On the knife rest 8 mounting groove is arranged, preceding foot rest 9 can be dismantled or install as required.Preceding foot rest 9 is installed to be beneficial to when setting level and is firmly operated, and is convenient to two hand operateds during dismounting, and is convenient to packaging and storing.
Described upper handle 5 is foldable structure; Handle 6 is set at knife rest 8 rear portions, is foldable structure between lower handle 6 and knife rest 8 rear portions.Described upper handle foldable structure comprises: with the connecting pin 53 of two joints, 51,52 connections before and after the upper handle, lateral pin 56 on the deutomerite upper handle, extension spring 55 between described connecting pin and lateral pin, the fixedly connected groove 54 of prosthomere upper handle rear end, the adjustment hole 58 on folding link slot 57 and the deutomerite upper handle.Described lower handle foldable structure comprises: the connecting pin 63 that lower handle is connected with the knife rest rear end, lateral pin 66 on the lower handle, extension spring 65 between described knife rest rear end connecting pin and lower handle lateral pin, the fixedly connected groove 64 in knife rest rear end, the adjustment hole 68 on folding link slot 67 and the lower handle.Need when folding, with lower handle lateral pin 66 from the knife rest rear end fixedly connected groove 64 pull out, the extension spring 65 between knife rest rear end connecting pin and lower handle lateral pin is extended, lower handle changes in the folding link slot 67 at knife rest rear portion after turning over an angle.Adjustment hole 68 on the lower handle has played regulating action when lower handle turns around.The jackknife action of upper handle is similar to lower handle, and when folding, the end of upper handle (lateral pin is arranged) just in time is buckled in the fixedly connected groove 64 in knife rest rear end, can not unclamp after making upper handle folding.So, make the small product size miniaturization, brought convenience with carrying for packed and transported.
During use, the pipe that will shear is put into the oral area of knife rest 8, covers fender bracket 11, and with the snap close 10 of knife rest 8 heads fender bracket 11 is fastened, and pipe is fixed in 8 mouthfuls on the knife rest.Upwards lift upper handle 5 (Fig. 5,6), (in the angular range of feed, being 30 °) as design feed angle, at this moment owing to the effect of feed spinal plate torsion spring 23, the ratchet of feed spinal plate 2 breaks away from last teeth and the gears engaged that gear enters gear again.Meanwhile, the chute 121 on the brace 12 slides on pin rod 31.Upper handle 5 is pressed, at this moment feed spinal plate 2 promotes gear 1 rotation again, and gear 1 moves to the pipe direction by the tooth bar 41 drive blades 4 at blade 4 backs.Blade 4 is subjected to being positioned at the restriction of the pin rod 43 of blade sliding tray 42, and the restriction of the cutter grooves 113 that are provided with in cutter saddle trough and the fender bracket 11, and blade 4 can only be done towards the motion of pipe direction straight cuts, and, avoid blade 4 in shear history, to be out of shape.Meanwhile, the drive lower edge chute 121 that stops the tooth bar 41 of cutter spinal plate 3 on blade 4 rotates and upwards lifts around pin rod 32, under the effect of torsion spring 33, enters back teeth of tooth bar 41, prevents that whole blade from retreating.
Upwards lift upper handle 5 once more and repeat action last time.Upper handle 5 is operated up and down once can make the advance distance of a facewidth of about tooth bar 41 of blade 4.Repeatedly operating upper handle 5 up and down can cut off pipe gradually.
Then with upper handle 5 high lift (Fig. 7), because the effect of brace 12, feed spinal plate 2 and the ratchet meeting while separating tooth wheel, the tooth bar that stop cutter spinal plate 3.At this moment, return spring 7 will retract blade 4, and the assurance tool backlash movement is finished smoothly.Open snap close 10, pull-up fender bracket 11 is put into the pipe that will shear to the knife rest mouth once more.
Claims (9)
1, a kind of tube scissors, comprise " F " shape knife rest (8), cutting edge is facing to the minor face of " F " shape knife rest, the blade (4) that can in cutter saddle trough, slide to minor face, be arranged on the tooth bar (41) at blade (4) back, the gear (1) that is meshed with tooth bar (41) on the blade (4) is housed on the knife rest (8), with gear shaft (101) is that pivot is provided with a upper handle (5), be connected the return spring (7) between blade (4) afterbody and knife rest (8) rear portion, it is characterized in that: be equipped with on the upper handle (5) and promote the feed spinal plate mechanism that gear (1) rotates, be equipped with on the other knife rest (8) of blade (4) back tooth bar and stop cutter spinal plate mechanism, the feed spinal plate (2) of feed spinal plate mechanism and stop cutter spinal plate mechanism stop be provided with brace (12) between the cutter spinal plate (3); Have a straight blade sliding tray (42) on the main body of blade (4), the pin rod (43) that is fixed on the knife rest (8) is positioned at blade sliding tray (42).
2, a kind of tube scissors according to claim 1, it is characterized in that: described feed spinal plate mechanism comprises the feed spinal plate (2) that matches with the teeth (102) of gear, and the feed spinal plate is articulated in feed spinal plate pivot pin (22) and feed spinal plate torsion spring (23) on the upper handle (5).
3, a kind of tube scissors according to claim 1, it is characterized in that: described stop cutter spinal plate mechanism comprise match with blade (4) back tooth bar (41) stop cutter spinal plate (3), will stop cutter spinal plate (3) and be articulated in the pivot pin (32) on the other knife rest (8) of blade (4) back tooth bar and stop cutter spinal plate torsion spring (33).
4, a kind of tube scissors according to claim 1 is characterized in that: the feed spinal plate (2) of feed spinal plate mechanism and the brace (12) that stops between the cutter spinal plate (3) to be provided with that stops cutter spinal plate mechanism are gone up the chute (121) of You Elliptical circle; Two of brace is respectively equipped with the bottom that pin rod (21,31) connects the feed spinal plate and stops the cutter spinal plate, and the pin rod (31) that stops cutter spinal plate bottom is arranged in the chute (121) of Suo Shu De Elliptical circle.
5, a kind of tube scissors according to claim 1; it is characterized in that: the opening part of described " F " shape knife rest is provided with a fender bracket (11); fender bracket is a pivot with the fender bracket axle (112) on the knife rest; be provided with cutter groove (113) in the fender bracket, the head steady pin (111) of fender bracket (11) buckles into knife rest (8) and goes up in the snap close (10) that is provided with.
6, a kind of tube scissors according to claim 1 is characterized in that: the front portion of described knife rest (4) bottom is provided with dismountable preceding foot rest (9).
7, a kind of tube scissors according to claim 1 is characterized in that: described upper handle (5) is foldable structure; Handle (6) is set at knife rest (8) rear portion, is foldable structure between lower handle (6) and knife rest (8) rear portion.
8, a kind of tube scissors according to claim 7, it is characterized in that: described upper handle foldable structure comprises: with the connecting pin (53) of two joint (51,52) connections before and after the upper handle, lateral pin on the deutomerite upper handle (56), extension spring between described connecting pin and lateral pin (55), the fixedly connected groove (54) of prosthomere upper handle rear end, the adjustment hole (58) on folding link slot (57) and the deutomerite upper handle.
9, a kind of tube scissors according to claim 7, it is characterized in that: described lower handle foldable structure comprises: the connecting pin (63) that lower handle is connected with the knife rest rear end, lateral pin on the lower handle (66), extension spring (65) between described knife rest rear end connecting pin and lower handle lateral pin, the fixedly connected groove in knife rest rear end (64), the adjustment hole (68) on folding link slot (67) and the lower handle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200876218U CN201205712Y (en) | 2008-05-21 | 2008-05-21 | Tube cutter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200876218U CN201205712Y (en) | 2008-05-21 | 2008-05-21 | Tube cutter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201205712Y true CN201205712Y (en) | 2009-03-11 |
Family
ID=40464779
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200876218U Expired - Fee Related CN201205712Y (en) | 2008-05-21 | 2008-05-21 | Tube cutter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201205712Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102349417A (en) * | 2011-06-23 | 2012-02-15 | 中国农业大学 | Handheld type nursery stock cleft grafting cutting device |
| CN102862170A (en) * | 2012-09-26 | 2013-01-09 | 上海昆杰五金工具有限公司 | Plastic pipe cutter |
| CN108247685A (en) * | 2018-03-30 | 2018-07-06 | 兰玲 | A kind of medical safe scissors |
-
2008
- 2008-05-21 CN CNU2008200876218U patent/CN201205712Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102349417A (en) * | 2011-06-23 | 2012-02-15 | 中国农业大学 | Handheld type nursery stock cleft grafting cutting device |
| CN102349417B (en) * | 2011-06-23 | 2013-10-30 | 中国农业大学 | Handheld type nursery stock cleft grafting cutting device |
| CN102862170A (en) * | 2012-09-26 | 2013-01-09 | 上海昆杰五金工具有限公司 | Plastic pipe cutter |
| CN108247685A (en) * | 2018-03-30 | 2018-07-06 | 兰玲 | A kind of medical safe scissors |
| CN108247685B (en) * | 2018-03-30 | 2020-11-13 | 西安交通大学医学院第一附属医院 | Medical safety scissors |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090311 Termination date: 20110521 |