Invention content
For the above situation, to make up the technical deficiency present in the prior art, the present invention provides a kind of advanceable jaw type
Scissors, to solve the problems, such as existing scissors use, existing function deficiency and safety are poor in the process.
Its solve technical solution be:Including upper clamp, lower clamp, lower lever, upper lever and blade, the upper clamp
It is placed in the top of lower clamp, lower lever is placed in the lower section of lever, and the right end of upper clamp and lower clamp is hinged and connected to form jaw,
The right end of upper clamp is connected with the left end of lower lever, and the right end of lower clamp is connected with the left end of upper lever;On the upper clamp
Equipped with opening towards first recessing groove in lower clamp direction, the front/rear end of the first recessing groove is respectively equipped with and upper clamp length side
To consistent the first sliding groove, lower clamp is equipped with second recessing groove of the opening towards upper clamp direction, the second recessing groove it is front and back
The second sliding slot consistent with lower clamp length direction is respectively equipped on end face;The upper end of the blade has steps down perpendicular to first
The both ends of the first rotating shaft of slot front/rear end, first rotating shaft are respectively slidably placed in two the first sliding grooves, the lower end of blade
There are the second shaft perpendicular to the second recessing groove front/rear end, the both ends of the second shaft to be respectively slidably placed in two second cunnings
In slot;It is connected with first gear through the first unilateral bearing in the first rotating shaft, is had in the first recessing groove and upper clamp length
The first consistent rack of direction, first gear are engaged with the first rack;It is connected through the second unilateral bearing in second shaft
There is second gear, there is second rack consistent with lower clamp length direction, second gear to be nibbled with the second rack in the second recessing groove
It closes;First unilateral bearing make first gear on the first rack can only to engaged transmission on the outside of jaw, described second
Unilateral bearing makes second gear can only be to engaged transmission on the outside of jaw on the second rack.
Structure of the invention is exquisite, easy to operate, need not move integrally and cutting for blade feeding and relatively long distance can be completed
It cuts, the notch after article shearing is neat, when being taken out stitches, releasing the operations such as bandage, can effectively avoid and is brought to patient body
Secondary injury, greatly improve safety in utilization;In addition, the present invention is not only more laborsaving when shearing, it can also be to jaw angle
It is constantly adjusted, greatly improves being precisely controlled for shear distance.
Specific implementation mode
The specific implementation mode of the present invention is described in further detail below in conjunction with attached drawing.
It is provided by Fig. 1 to Fig. 7, the present invention includes upper clamp 1, lower clamp 2, lower lever 3, upper lever 4 and blade 5, described
Upper clamp 1 be placed in the top of lower clamp 2, lower lever 3 is placed in the lower section of lever 4, and upper clamp 1 and the right end of lower clamp 2 are cut with scissors
It connects and is connected to form jaw, the right end of upper clamp 1 is connected with the left end of lower lever 3, the left end of the right end of lower clamp 2 and upper lever 4
It is connected;The upper clamp 1 is equipped with first recessing groove 6 of the opening towards 2 direction of lower clamp, the front and back end of the first recessing groove 6
Face is respectively equipped with the first sliding groove 7 consistent with 1 length direction of upper clamp, and lower clamp 2 is equipped with opening towards 1 direction of upper clamp
Second recessing groove 8 is respectively equipped with the second sliding slot 9 consistent with 2 length direction of lower clamp on the front/rear end of second recessing groove 8;
There are the first rotating shaft 10 perpendicular to 6 front/rear end of the first recessing groove, the both ends difference of first rotating shaft 10 in the upper end of the blade 5
It is slidably positioned in two the first sliding grooves 7, there is the second shaft perpendicular to 8 front/rear end of the second recessing groove in the lower end of blade 5
11, the both ends of the second shaft 11 are respectively slidably placed in two second sliding slots 9;It is single through first in the first rotating shaft 10
It is connected with first gear 13 to bearing 12, there is first rack 14 consistent with 1 length direction of upper clamp in the first recessing groove 6, the
One gear 13 is engaged with the first rack 14;It is connected with second gear 16 through the second unilateral bearing 15 in second shaft 11,
There are second rack 17 consistent with 2 length direction of lower clamp, second gear 16 to be engaged with the second rack 17 in second recessing groove 8;
First unilateral bearing 12 make first gear 13 on the first rack 14 can only to engaged transmission on the outside of jaw, described the
Two unilateral bearings 15 make second gear 16 can only be to engaged transmission on the outside of jaw on the second rack 17.
Preferably, the front end face of the upper clamp 1 is equipped with the third sliding slot 18 consistent with 1 length direction of upper clamp,
Third sliding slot 18 is corresponding with 7 position of the first sliding groove on 6 front end face of the first recessing groove and is interconnected, and having in third sliding slot 18 can
Having along the first sliding block 19 of 18 length direction of third sliding slot sliding, on the first sliding block 19 can slide back and forth on the first sliding block 19
The front end of first briquetting 20, first rotating shaft 10 is placed in third sliding slot 18, and the front end of first rotating shaft 10 has with first rotating shaft 10 together
First spline 21 of axis setting, have on the first briquetting 20 with 21 matched first spline 22 of the first spline, the first spline 21 can
It is slidably disposed in the first spline 22, since the first sliding block 19 can not rotate on upper clamp 1, and the first briquetting 20 is first
It can not also be rotated on sliding block 19, therefore, first rotating shaft 10 can not be in upper pincers by the first spline 21 and 22 locking of the first spline
It is rotated on body 1;There is the first resigning chamber 23 for being placed in 22 front of the first spline on first briquetting 20, when the first briquetting 20 is first
Generating sliding when being slided backward on sliding block 19, between the first spline 21 and the first spline 22 makes the first spline 21 slide into first
In resigning chamber 23, when the first spline 21 is completely disposed in the first resigning chamber 23, the first spline 21 is detached with the first spline 22,
The locking of first rotating shaft 10 is released from.
Preferably, the front end face of the lower clamp 2 is equipped with fourth sliding slot 24 consistent with 2 length direction of lower clamp,
4th sliding slot 24 is corresponding with 9 position of second sliding slot on 8 front end face of the second recessing groove and is interconnected, and having in the 4th sliding slot 24 can
Having along the second sliding block 25 of 24 length direction of the 4th sliding slot sliding, on the second sliding block 25 can slide back and forth on the second sliding block 25
The front end of second briquetting 26, the second shaft 11 is placed in the 4th sliding slot 24, and the front end of the second shaft 11 has with the second shaft 11 together
Second spline 27 of axis setting, have on the second briquetting 26 with 27 matched second spline 28 of the second spline, the second spline 27 can
It is slidably disposed in the second spline 28, since the second sliding block 25 can not rotate on lower clamp 2, and the second briquetting 26 is second
It can not also be rotated on sliding block 25, therefore, the second shaft 11 can not be in lower pincers by the second spline 27 and 28 locking of the second spline
It is rotated on body 2;There is the second resigning chamber 29 for being placed in 28 front of the second spline on second briquetting 26, when the second briquetting 26 is second
Generating sliding when being slided backward on sliding block 25, between the second spline 27 and the second spline 28 makes the second spline 27 slide into second
In resigning chamber 29, when the second spline 27 is completely disposed in the second resigning chamber 29, the second spline 27 is detached with the second spline 28,
The locking of second shaft 11 is released from.
Preferably, having the first spring 30, the bullet of the first spring 30 between first briquetting 20 and the first sliding block 19
Power makes the first briquetting 20 forward slip on the first sliding block 19.
Preferably, having second spring 31, the bullet of second spring 31 between second briquetting 26 and the second sliding block 25
Power makes the second briquetting 26 forward slip on the second sliding block 25.
The application method of the present invention is identical as the application method of conventional shears, it would be desirable to and the article of shearing is placed at jaw,
By holding upper lever 4 with a firm grip and shearing manipulation can be completed in lower lever 3.
During being sheared, in order to ensure that blade 5 is contacted with the good of article, usually blade 5 is obliquely installed,
So that the upper and lower ends of blade 5 is deposited range difference in the horizontal direction, refer to the attached drawing 1, the upper end of blade 5 in left, lower end on the right side,
When jaw is closed, the Impact directions of 5 upper and lower ends of horizontal distance official post blade of the upper and lower ends of blade 5 is on the contrary, blade 5
Upper end is moved to the left by component to the left, and the lower end of blade 5 is moved right by component to the right;It is upper when blade 5
When end is moved to the left, first gear 13 while mobile, first gear are slided in the first sliding groove 7 and driven to first rotating shaft 10 to the left
13 displacement makes first gear 13 generate engagement on the first rack 14 and rotate clockwise, when first gear 13 rotates clockwise
When, the first unilateral bearing 12 is in transmission discrete state, will not generate obstruction to the rotation of first gear 13, ensure blade 5
Complete movement to the left in upper end;When the lower end of blade 5 moves right, the second shaft 11 is slided to the right simultaneously in second sliding slot 9
Drive second gear 16 mobile simultaneously, the displacement of second gear 16 makes second gear 16 generate on the second rack 17 to engage and suitable
Hour hands rotate, and when second gear 16 rotates clockwise, the second unilateral bearing 15 is in transmission engagement state so that second gear
16 through the second unilateral bearing 15 drive the second shaft 11 rotate simultaneously, but due to the second spline 27 and the second spline 28 cooperation when
Locking effect, the second shaft 11 can not rotate, and therefore, second gear 16 can not be also rotated further, therefore the lower end of blade 5 is kept
Motionless, blade 5 is rotated counterclockwise along the second shaft 11 completes article shearing.
After jaw is closed completely, a shearing manipulation is completed, so that jaw is opened at this time, the upper end of blade 5 is by the right
Component and move right, the lower end of blade 5 is moved to the left by component to the left;When the upper end of blade 5 moves right,
First gear 13 while mobile is slided to the right in the first sliding groove 7 and driven to first rotating shaft 10, and the displacement of first gear 13 makes the
One gear 13 generates on the first rack 14 engagement and is rotated counterclockwise, and when first gear 13 rotates counterclockwise, first is unidirectional
Bearing 12 is in transmission engagement state so that and first gear 13 drives first rotating shaft 10 to rotate simultaneously through the first unilateral bearing 12,
But locking when being coordinated due to the first spline 21 and the first spline 22 is acted on, and first rotating shaft 10 can not rotate, therefore, the first tooth
Wheel 13 can not be also rotated further, therefore the upper end of blade 5 remains stationary as;When the lower end of blade 5 is moved to the left, the second shaft 11 exists
Slide and drive second gear 16 while mobile in second sliding slot 9 to the left, the displacement of second gear 16 makes second gear 16 the
Engagement is generated on two racks 17 and is rotated counterclockwise, and when second gear 16 rotates counterclockwise, the second unilateral bearing 15, which is in, to be passed
Dynamic discrete state will not generate obstruction to the rotation of second gear 16, ensure that movement to the left is completed in the lower end of blade 5;Therefore,
The evolution that blade 5 rotates clockwise completion blade 5 along first rotating shaft 10 feeds operation.
It repeats above-mentioned action and the continuous shear stress to article can be realized, after the completion of article shearing or blade 5 reaches jaw
It after outermost end, needs that blade 5 is made to be resetted, due to the one-directional rotation of the first unilateral bearing 12 and the second unilateral bearing 15 spy
Property, the upper and lower ends of blade 5 can not directly move right, it is therefore desirable to separately or concurrently press the first briquetting 20 and second pressure
Block 26 is locked with the position for contacting blade 5;When pressing the first briquetting 20, the first briquetting 20 is slided backward on the first sliding block 19
Dynamic, sliding is generated between the first spline 21 and the first spline 22 makes the first spline 21 slide into the first resigning chamber 23, when the
When one spline 21 is completely disposed in the first resigning chamber 23, the first spline 21 is detached with the first spline 22, the lock of first rotating shaft 10
Only being released from can be freely rotated;Move right at this time blade 5 upper end when, as described above, first gear 13 counterclockwise turn
It moves and drives first rotating shaft 10 to rotate simultaneously through the first unilateral bearing 12;When pressing the second briquetting 26, movement relation with press
Principle when lower first briquetting 20 is identical, and the locking of the second shaft 11 is contacted, when the lower end for the blade 5 that moves right, second
Gear 16 rotates clockwise and drives the second shaft 11 through the second unilateral bearing 15 while rotating.
After blade 5 is completed to reset, shearing manipulation next time can be carried out, the article sheared according to actual needs is to the present invention
It is flexibly used, a variety of different use demands can be met.
When carrying out shearing manipulation using the present invention, blade feeding can be completed due to that need not move integrally, it can be
Article is constantly sheared in the case of being remained relatively unchanged over article position in the position of lower clamp, so that article is sheared
Notch afterwards is neat;Meanwhile when being sheared using the present invention, the position due to that need not move lower clamp can be completed longer
Therefore the shearing of distance when being taken out stitches, releasing the operations such as bandage, need not can have continually by lower clamp shift position
Effect avoids the secondary injury that is brought to patient body, and even if when needing the position of mobile lower clamp, since lower clamp itself does not have
There is blade part, therefore will not bring scuffing or shouting pain etc. to the body of patient under normal conditions, greatly improves safe to use
Property.
In addition, when being sheared using the present invention, since the length of blade is less than the length of upper clamp and lower clamp,
Even if the jaw angle between upper clamp and lower clamp is smaller, still can guarantee between blade and upper clamp or lower clamp in compared with
Big angular position is conducive to the cutting to article;Meanwhile when the article to the position outside jaw is sheared, still
So that upper clamp and lower clamp is maintained at larger angular position, not only shear history can be made more laborsaving, also allow for into
The continuous adjustment of row jaw angle, greatly improves being precisely controlled for shear distance.