CN214430364U - Electric scissors blade bidirectional driving mechanism and electric scissors - Google Patents
Electric scissors blade bidirectional driving mechanism and electric scissors Download PDFInfo
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- CN214430364U CN214430364U CN202023159802.7U CN202023159802U CN214430364U CN 214430364 U CN214430364 U CN 214430364U CN 202023159802 U CN202023159802 U CN 202023159802U CN 214430364 U CN214430364 U CN 214430364U
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Abstract
The utility model relates to the technical field of electric shears, in particular to a bidirectional driving mechanism for blades of electric shears and electric shears, which comprises a fixed seat, a driving gear, a rotating shaft piece, an upper blade group and a lower blade, wherein the driving gear and the rotating shaft piece are arranged on the fixed seat; the inner rack and the outer rack are respectively meshed with the two sides of the driving gear; when the electric scissors are driven, the driving gear, the upper blade and the lower blade rotate in the circumferential direction in the same plane, the situation that the upper blade and the lower blade are outwards opened due to the fact that the circumferential rotation of the gear is perpendicular to the circumferential rotation of the upper blade and the lower blade does not occur, and therefore the stability of the bidirectional driving mechanism for the blades of the electric scissors is improved, and the bidirectional driving mechanism for the blades of the electric scissors is more durable.
Description
Technical Field
The utility model relates to an electric scissors technical field especially relates to two-way actuating mechanism of electric scissors blade and electric scissors.
Background
The electric shears are used in orchard, garden, vine, etc. and as branch pruning tool. In the traditional bidirectional driving mechanism for the blades of the electric scissors, a driving gear is adopted to drive two bevel gears, and then the bevel gears are meshed with two swing arms with racks, so that the two blades of the electric scissors are driven to perform shearing operation; the electric shears with the structure have more parts, so that the assembly is difficult, the adopted complex structure is difficult to disassemble, a certain part is difficult to replace, and the electric shears can only be integrally replaced when being damaged; in order to solve this problem, the applicant proposed patent numbers: 202020466816.4, entitled "a novel blade double-transmission mechanism of electric scissors", which directly drives two blades with racks by adopting a gear connected with a motor, directly drives the two blades of the scissors to carry out shearing operation, removes bevel gears and reduces the number of parts; however, the design of this structure has the following problems:
firstly, the thickness of the electric shears needs to consider the diameter of the gear and the thickness of the two blades, in order to ensure the meshing between the driving gear and the rack, the thickness of the rear part of the blade needs to be large, and when some complicated vines and branches are cut, the blade is blocked due to the large thickness, so that accurate cutting cannot be carried out;
secondly, when two blade rear portions swung to the maximum degree, the meshing degree between drive gear and the tooth can receive certain influence to when leading to some comparatively thick tendrils, branches of shearing, the blade can appear the condition of outwards opening, causes the harm to the electric scissors, reduces its life.
There is a need for further improvements to address the above problems.
SUMMERY OF THE UTILITY MODEL
In view of this, the main object of the present invention is to provide a bidirectional driving mechanism for electric shears.
The utility model adopts the technical scheme as follows:
the bidirectional driving mechanism for the blades of the electric shears comprises a fixed seat, a driving gear, a rotating shaft piece, an upper blade group and a lower blade, wherein the driving gear and the rotating shaft piece are arranged on the fixed seat, the lower blade and the upper blade group rotate around the rotating shaft piece, an outer rack is arranged at the rear part of the lower blade, the upper blade is arranged at the front part of the upper blade group, an engagement block is arranged at the rear part of the upper blade group, and an inner rack is arranged at the rear part of the engagement block; the inner rack and the outer rack are respectively meshed with the two sides of the driving gear.
Preferably, the rotating shaft part comprises a stop screw and a nut, a rotating shaft hole D is formed in the fixed seat, and the stop screw penetrates through the rotating shaft hole D and is in threaded connection with the nut.
Preferably, the stop screw includes connecting rod and spacing cap, and the one end and the spacing cap of connecting rod combine, and the other end of connecting rod is provided with the screw thread.
Preferably, the front part of the meshing block is provided with a rotating shaft hole A, the rear part of the upper blade is provided with a rotating shaft hole B, the middle part of the lower blade is provided with a rotating shaft hole C, and the rotating shaft hole A, the rotating shaft hole B and the rotating shaft hole C all rotate around the rotating shaft part; the front part of the meshing block is also provided with a pin hole E, the rear part of the upper blade is provided with a pin hole F, and pins are connected in the pin hole E and the pin hole F together.
Preferably, the front part of the engaging block is provided with a first boss, and the pin hole E is positioned at the first boss; the rear part of the upper blade is provided with a second boss, and the pin hole F is positioned at the second boss.
Preferably, the first boss portion is provided at a position forward and upward of the rotation shaft hole a, and the second boss portion is provided at a position forward and upward of the rotation shaft hole B.
Preferably, the outer rack and the inner rack are arc-shaped structures.
Preferably, the fixing seat is provided with a gear hole, the gear hole is internally connected with a deep groove bearing, and a pin shaft of the driving gear is in running fit with the deep groove bearing.
The electric scissors comprise a driving component, wherein the output end of the driving component is in power connection with a pin shaft of a driving gear so as to drive the driving gear to rotate.
Compared with the prior art, the beneficial effects of this application are as follows:
by adopting the structure, the inner rack and the driving gear are positioned behind the outer rack, and a part for installing a driving paper wheel is not required to be arranged between the upper blade and the lower blade, so that the thickness of the paper wheel is reduced;
when the electric scissors are driven, the driving gear, the upper blade and the lower blade rotate in the circumferential direction in the same plane, the situation that the upper blade and the lower blade are outwards opened due to the fact that the circumferential rotation of the gear is perpendicular to the circumferential rotation of the upper blade and the lower blade does not occur, and therefore the stability of the bidirectional driving mechanism for the blades of the electric scissors is improved, and the bidirectional driving mechanism for the blades of the electric scissors is more durable.
Drawings
Fig. 1 is a schematic structural diagram of embodiment 1 of the present invention;
fig. 2 is an exploded view of embodiment 1 of the present invention;
fig. 3 is a schematic structural diagram of embodiment 2 of the present invention;
fig. 4 is an exploded view of embodiment 2 of the present invention;
the specific implementation mode is as follows:
the present invention will be described in detail below with reference to examples and the accompanying drawings.
Referring to fig. 1 to 4, the present invention provides a bidirectional driving mechanism for blades of electric shears, including a fixing base 10, a driving gear 50, a rotating shaft member 40, an upper blade set 30 and a lower blade 20, wherein the driving gear 50 and the rotating shaft member 40 are disposed on the fixing base 10, the lower blade 20 and the upper blade set 30 rotate around the rotating shaft member 40, an outer rack 21 is disposed at the rear portion of the lower blade 20, an upper blade 32 is disposed at the front portion of the upper blade set 30, an engaging block 33 is disposed at the rear portion of the upper blade set 30, and an inner rack 31 is disposed at the rear portion of the engaging block 33; the inner rack 31 and the outer rack 21 are engaged with both sides of the driving gear 50, respectively.
By adopting the structure that the driving gear 50 and the rotating shaft member 40 are arranged on the fixed seat 10, the rotating shaft member 40 enables the upper blade group 30 and the lower blade 20 to rotate around the upper blade group 30 and the lower blade 20, then the meshing block 33 is arranged, the inner rack 31 is arranged at the rear part of the meshing block 33, the inner rack 31 faces the outer rack 21 at the rear part of the lower blade 20, two sides of the driving gear 50 are respectively meshed with the inner rack and the outer rack 21, through the arrangement of the structure, the inner rack 31 and the driving gear 50 are positioned behind the outer rack 21, a part for installing a driving paper wheel is not required to be arranged between the upper blade 32 and the lower blade 20, the thickness of the upper blade 32 and the lower blade 20 is reduced, and the driving gear 50, the upper blade 32 and the lower blade 20 rotate in the circumferential direction in the same plane, and the situation that the upper blade 32 and the lower blade 20 are opened outwards due to the fact that the circumferential rotation of the gear and the circumferential rotation of the upper blade 32 and the lower blade 20 are perpendicular to each other does not occur, therefore, the stability of the bidirectional driving mechanism of the electric scissors blade is improved, and the bidirectional driving mechanism of the electric scissors blade is more durable.
As further shown in fig. 2 and 4, the rotating shaft member 40 includes a stop screw 41 and a nut 42, a rotating shaft hole D is provided on the fixing base 10, and the stop screw 41 passes through the rotating shaft hole D and is in threaded connection with the nut 42.
As further shown in fig. 2 and 4, the stop screw 41 includes a connecting rod (not shown) and a limit cap (not shown), one end of the connecting rod is combined with the limit cap, and the other end of the connecting rod is provided with a thread; through setting up stop screw 41 and nut 42, stop screw 41 includes connecting rod and spacing cap, can realize detachable effect.
As further shown in fig. 3-4, the front part of the meshing block 33 is provided with a rotating shaft hole a, the rear part of the upper blade 32 is provided with a rotating shaft hole B, the middle part of the lower blade 20 is provided with a rotating shaft hole C, and the rotating shaft hole a, the rotating shaft hole B and the rotating shaft hole C all rotate around the rotating shaft member 40; the front part of the meshing block 33 is also provided with a pin hole E, the rear part of the upper blade 32 is provided with a pin hole F, and a pin 34 is connected in the pin hole E and the pin hole F together; through the arrangement, the meshing block 33 and the upper blade 32 are of detachable structures, and when the precision is reduced after the inner rack 31 on the meshing part is used for a long time or the upper blade 32 is used for a long time, the meshing block and the upper blade can be detached for independent replacement, so that the replacement flexibility is improved; and the pin 34 is arranged, the engagement block 33 and the upper blade 32 are mutually positioned and matched by matching with the rotating shaft part 40, so that the engagement block 33 can drive the upper blade 32 to rotate, and the shearing operation is realized.
As further shown in fig. 3-4, the engaging block 33 is provided with a first boss 331 at the front thereof, and a pin hole E is formed at the first boss 331; the rear part of the upper blade 32 is provided with a second boss 321, and the pin hole F is positioned at the second boss 321; providing a suitable location for the pin holes.
As further shown in fig. 3 to 4, the first boss 331 is provided at a position forward and upward of the rotation shaft hole a, and the second boss 321 is provided at a position forward and upward of the rotation shaft hole B; through the arrangement of the position structure, when the engaging block 33 drives the pin 34 to operate, the operating track of the pin 34 just faces to a connecting line from a rotating shaft hole of the upper blade 32 to a pin hole, the pin 34 vertically props against the upper blade 32 to swing in the process, and the abrasion degree between the pin 34 and the pin hole can be reduced to the minimum degree through the arrangement, so that the shearing stability can be improved, and the service life of the bidirectional driving mechanism of the electric scissors blade is further prolonged.
As further shown in fig. 1-4, the outer rack 21 and the inner rack 31 are arc-shaped; the circle centers corresponding to the arcs of the outer rack 21 and the inner rack 31 correspond to the central line of the rotating shaft member 40; a tight engagement with the driving gear 50 is achieved.
As further shown in fig. 2 and 4, a gear hole 11 is formed in the fixing seat 10, a deep groove bearing 12 is connected in the gear hole 11, and a pin shaft of the driving gear 50 is in running fit with the deep groove bearing 12; rotation of the drive gear 50 is achieved.
The electric scissors comprise a driving assembly, wherein the output end of the driving assembly is in power connection with a pin shaft of a driving gear 50 so as to drive the driving gear 50 to rotate, and the rotation of the driving gear 50 drives an outer rack 21 and an inner rack 31 to synchronously rotate, so that an upper blade 32 and a lower blade 20 can swing up and down to complete the shearing action.
In the above technical means, in order to more clearly explain the operation principle of the bidirectional driving mechanism of the electric scissors blade, the following two embodiments are further explained:
[ EXAMPLES 1 ]
As shown in fig. 1-2, the bidirectional driving mechanism for the blades of the electric scissors comprises a fixed seat 10, a driving gear 50, a rotating shaft member 40, an upper blade set 30 and a lower blade 20, wherein the driving gear 50 and the rotating shaft member 40 are arranged on the fixed seat 10, the lower blade 20 and the upper blade set 30 rotate around the rotating shaft member 40, an outer rack 21 is arranged at the rear part of the lower blade 20, an upper blade 32 is arranged at the front part of the upper blade set 30, an engaging block 33 is arranged at the rear part of the upper blade set 30, and an inner rack 31 is arranged at the rear part of the engaging block 33; the inner rack 31 and the outer rack 21 are respectively meshed with two sides of the driving gear 50; the rotating shaft member 40 comprises a stop screw 41 and a nut 42, a rotating shaft hole D is formed in the fixed seat 10, and the stop screw 41 penetrates through the rotating shaft hole D and is in threaded connection with the nut 42; the stop screw 41 comprises a connecting rod and a limit cap, one end of the connecting rod is combined with the limit cap, and the other end of the connecting rod is provided with threads; in practical application, the driving assembly drives the driving gear 50 to rotate, and the bidirectional electric scissors blade driving mechanism drives the inner rack 31 and the outer rack 21 to swing through the rotation of the driving gear 50, so as to drive the upper blade 32 and the lower blade 20 to perform shearing operation; when a part is damaged, the whole is removed by loosening the nut 42, and the damaged part is replaced.
[ EXAMPLES 2 ]
As shown in fig. 3-4, the bidirectional driving mechanism for the blades of the electric scissors comprises a fixed seat 10, a driving gear 50, a rotating shaft member 40, an upper blade set 30 and a lower blade 20, wherein the driving gear 50 and the rotating shaft member 40 are arranged on the fixed seat 10, the lower blade 20 and the upper blade set 30 rotate around the rotating shaft member 40, an outer rack 21 is arranged at the rear part of the lower blade 20, an upper blade 32 is arranged at the front part of the upper blade set 30, an engaging block 33 is arranged at the rear part of the upper blade set 30, and an inner rack 31 is arranged at the rear part of the engaging block 33; the inner rack 31 and the outer rack 21 are respectively meshed with two sides of the driving gear 50; the rotating shaft member 40 comprises a stop screw 41 and a nut 42, a rotating shaft hole D is formed in the fixed seat 10, and the stop screw 41 penetrates through the rotating shaft hole D and is in threaded connection with the nut 42; the stop screw 41 comprises a connecting rod and a limit cap, one end of the connecting rod is combined with the limit cap, and the other end of the connecting rod is provided with threads; the inner rack 31 and the outer rack 21 are respectively meshed with two sides of the driving gear 50; a rotating shaft hole A is formed in the front part of the meshing block 33, a rotating shaft hole B is formed in the rear part of the upper blade 32, a rotating shaft hole C is formed in the middle part of the lower blade 20, and the rotating shaft hole A, the rotating shaft hole B and the rotating shaft hole C all rotate around the rotating shaft part 40; the front part of the meshing block 33 is also provided with a pin hole E, the rear part of the upper blade 32 is provided with a pin hole F, and a pin 34 is connected in the pin hole E and the pin hole F together; in practical application, the driving assembly drives the driving gear 50 to rotate, and the bidirectional electric scissors blade driving mechanism drives the inner rack 31 and the outer rack 21 to swing through the rotation of the driving gear 50, so as to drive the upper blade 32 and the lower blade 20 to perform shearing operation; when a part is damaged, the whole is disassembled by loosening the nut 42, and the damaged part is replaced; if damage occurs to the engaging piece 33 or the upper blade 32, the pin 34 is knocked out by a nail or the like, and then the engaging piece 33 or the upper blade 32 is replaced.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (9)
1. The bidirectional driving mechanism for the blades of the electric shears is characterized by comprising a fixed seat, a driving gear, a rotating shaft piece, an upper blade group and a lower blade, wherein the driving gear and the rotating shaft piece are arranged on the fixed seat; the inner rack and the outer rack are respectively meshed with the two sides of the driving gear.
2. The bidirectional driving mechanism for electric scissors blade of claim 1, wherein the rotating shaft member comprises a stop screw and a nut, and the fixing base is provided with a rotating shaft hole D through which the stop screw passes and is threadedly coupled with the nut.
3. A bi-directional drive mechanism for a shear blade according to claim 2 wherein the stop screw comprises a connecting rod and a stop cap, one end of the connecting rod being coupled to the stop cap and the other end of the connecting rod being provided with a thread.
4. The bidirectional driving mechanism for electric shears blade of claim 3, wherein the front part of the meshing block is provided with a rotating shaft hole A, the rear part of the upper blade is provided with a rotating shaft hole B, the middle part of the lower blade is provided with a rotating shaft hole C, and the rotating shaft hole A, the rotating shaft hole B and the rotating shaft hole C all rotate around the rotating shaft part; the front part of the meshing block is also provided with a pin hole E, the rear part of the upper blade is provided with a pin hole F, and pins are connected in the pin hole E and the pin hole F together.
5. A bidirectional electric scissors blade driving mechanism according to claim 4, wherein the front part of the engaging block is provided with a first boss, and the pin hole E is positioned at the first boss; the rear part of the upper blade is provided with a second boss, and the pin hole F is positioned at the second boss.
6. A bidirectional driving mechanism for electric shears blade according to claim 5, wherein the first boss is disposed at a front upper position of the rotating shaft hole A, and the second boss is disposed at a front upper position of the rotating shaft hole B.
7. A bi-directional drive mechanism for the blades of an electric shears as claimed in claim 1, wherein the outer and inner racks are arcuate in configuration.
8. The bidirectional driving mechanism for electric scissors blade of claim 1, wherein the fixing seat is provided with a gear hole, the gear hole is internally connected with a deep groove bearing, and the pin shaft of the driving gear is rotatably matched with the deep groove bearing.
9. An electric scissors comprising a bidirectional blade driving mechanism as claimed in claims 1 to 8, wherein the bidirectional blade driving mechanism comprises a driving assembly, and an output end of the driving assembly is in power connection with a pin shaft of a driving gear to drive the driving gear to rotate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023159802.7U CN214430364U (en) | 2020-12-24 | 2020-12-24 | Electric scissors blade bidirectional driving mechanism and electric scissors |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023159802.7U CN214430364U (en) | 2020-12-24 | 2020-12-24 | Electric scissors blade bidirectional driving mechanism and electric scissors |
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| CN214430364U true CN214430364U (en) | 2021-10-22 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112514673A (en) * | 2020-12-24 | 2021-03-19 | 东莞市嘉航实业有限公司 | Electric scissors blade bidirectional driving mechanism and electric scissors |
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- 2020-12-24 CN CN202023159802.7U patent/CN214430364U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112514673A (en) * | 2020-12-24 | 2021-03-19 | 东莞市嘉航实业有限公司 | Electric scissors blade bidirectional driving mechanism and electric scissors |
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