CN216473862U - A kind of scissors - Google Patents
A kind of scissors Download PDFInfo
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- CN216473862U CN216473862U CN202122843479.3U CN202122843479U CN216473862U CN 216473862 U CN216473862 U CN 216473862U CN 202122843479 U CN202122843479 U CN 202122843479U CN 216473862 U CN216473862 U CN 216473862U
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Abstract
The utility model relates to the technical field of mechanical tools, in particular to a pair of scissors, which comprises a first connecting plate, wherein a first blade and a second blade are hinged on the first connecting plate, a limiting rod is correspondingly arranged on the first blade and the second blade, the first connecting plate is connected with a second connecting plate and a third connecting plate in a sliding manner, the third connecting plate is connected with the fixed end of a telescopic cylinder, and the telescopic end of the telescopic cylinder is connected with the second connecting plate; one end of the second connecting plate is provided with a first kidney-shaped hole corresponding to the two limiting rods respectively, the two limiting rods are arranged in the corresponding first kidney-shaped holes in a penetrating mode respectively, and the diameter value of each limiting rod is equal to the width value of each first kidney-shaped hole; an elastic buffer mechanism is connected between the other end of the second connecting plate and the first connecting plate, and when the second connecting plate slides on the first connecting plate, the elastic buffer mechanism drives the first connecting plate to move towards the direction close to the first blade and the second blade.
Description
Technical Field
The utility model relates to the technical field of mechanical tools, in particular to a pair of scissors.
Background
In the field of mechanical tools, scissors are a common hand tool. The operator applies pressure to the first and second handles of the scissors to effect relative movement of the first and second scissor heads, the cutting edges of the scissor heads acting on the object to cut the object.
The scissors are usually fixedly arranged in the sewing machine, the scissors cannot move to a preset position for cutting, the thread cutting effect is not ideal, the movable scissors are difficult to move integrally and cut synchronously, and the effect of cutting in place is difficult to realize through a simple mechanical structure.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present invention has been developed to provide a scissors that overcomes, or at least partially solves, the above-mentioned problems.
In order to solve the problems, the utility model discloses scissors which comprise a first connecting plate, wherein a first blade and a second blade which are in an opening and closing shape are hinged on the first connecting plate, a limiting rod is correspondingly arranged on the end surfaces of the first blade and the second blade, which are on the same side, the front surface and the back surface of the first connecting plate are respectively connected with a second connecting plate and a third connecting plate in a sliding manner, the third connecting plate is connected with the fixed end of a telescopic cylinder, and the telescopic end of the telescopic cylinder is connected with the second connecting plate;
one end of the second connecting plate is provided with first waist-shaped holes corresponding to the two limiting rods respectively, the two first waist-shaped holes are symmetrically distributed in an inclined mode according to the center lines of the first blade and the second blade, the two limiting rods are arranged in the corresponding first waist-shaped holes in a penetrating mode respectively, and the diameter value of each limiting rod is equal to the width value of each first waist-shaped hole;
an elastic buffer mechanism is connected between the other end of the second connecting plate and the first connecting plate, and when the second connecting plate slides on the first connecting plate, the elastic buffer mechanism drives the first connecting plate to move towards the direction close to the first blade and the second blade.
Preferably, a second waist-shaped hole is formed in the second connecting plate corresponding to the center line of the first blade and the center line of the second blade, the first blade is connected with the second blade through a hinge rod, and one end of the hinge rod penetrates through the second waist-shaped hole.
Preferably, two the long limit extension line in first waist shape hole forms first contained angle, first blade and second blade form the second contained angle, the opening direction of first contained angle with the opening direction syntropy of second contained angle.
Preferably, when the first blade and the second blade are in the opened state, the limiting rod is located at one end of the first waist-shaped hole close to the tool nose of the first blade.
Preferably, the elastic buffer mechanism comprises a push plate arranged at the other end of the second connecting plate, a baffle arranged on the first connecting plate and a first spring arranged between the push plate and the baffle, a connecting rod is arranged on the push plate or the baffle, a through hole for the connecting rod to pass through is formed in the baffle or the push plate, and the first spring is arranged on the connecting rod in a penetrating manner.
Preferably, two the long limit extension line in first waist shape hole forms first contained angle, first blade and second blade form the second contained angle, the opening direction of first contained angle with the opening direction of second contained angle is reverse.
Preferably, when the first blade and the second blade are in the opened state, the limiting rod is located at one end, away from the tool nose of the first blade, of the first waist-shaped hole.
Preferably, be equipped with on the lateral wall of telescopic cylinder's stiff end and be connected to backup pad between first connecting plate and the second connecting plate, elasticity buffer gear includes gyration pole, second spring and sleeve, the both ends of gyration pole slip nested connection respectively have the sleeve, two telescopic outer end all seals and respectively with first connecting plate with the second connecting plate is connected, the middle part of gyration pole be equipped with the backup pad rotates the revolute joint of being connected, the revolute joint with the butt is equipped with between the telescopic terminal surface the second spring, works as when first blade and second blade are the state of opening, the second spring is in compression state.
Preferably, telescopic cylinder's stiff end with the lateral wall of third connecting plate is connected, telescopic cylinder's flexible end is followed the length direction concertina movement of third connecting plate, be equipped with the corner connecting plate on the front of second connecting plate, a side of corner connecting plate with the second connecting plate is connected, another side of corner connecting plate with flexible end is connected.
Preferably, a sliding block and a sliding rail which are matched with each other are respectively arranged between the first connecting plate and the second connecting plate and between the first connecting plate and the third connecting plate.
The utility model has the following advantages:
the first connecting plate is driven to move towards the switching direction of the first blade and the second blade through the telescopic cylinder, the limiting rod on the first blade and the limiting rod on the second blade are respectively along one end of the first waist-shaped hole slides to the other end, so that the first blade and the second blade are changed into a closed shape from an open shape, meanwhile, in the process of state change of the first blade and the second blade, the elastic buffer mechanism is used for transmitting and forming, the first connecting plate moves towards the direction close to the first blade and the second blade, the first blade and the second blade are also driven to be integrally close to a sewing thread to be sheared when the state changes, and the thread shearing requirement of the automatic sewing machine is adapted more.
Drawings
Fig. 1 is a schematic perspective view of a pair of scissors according to an embodiment of the present application;
fig. 2 is a schematic front view of a pair of scissors according to an embodiment of the present disclosure;
FIG. 3 is a schematic view of a structure of a pair of scissors according to an embodiment of the present disclosure;
FIG. 4 is a schematic view of another structure of a pair of scissors according to an embodiment of the present disclosure;
FIG. 5 is a schematic view of a spring buffer mechanism of a pair of scissors according to an embodiment of the present disclosure;
in the figure: 1. a first connecting plate; 2. a second connecting plate; 3. a third connecting plate; 4. a first blade; 5. a second blade; 6. a telescopic cylinder; 10. a limiting rod; 11. a first waist-shaped hole; 12. a hinge rod; 13. a second waist-shaped hole; 21. a first included angle; 22. a second included angle; 31. pushing the plate; 32. a baffle plate; 33. a first spring; 34. a connecting rod; 41. a support plate; 42. a turning lever; 43. a second spring; 44. a sleeve; 45. a rotary joint; 51. a corner connecting plate; 52. a slider; 53. a slide rail.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
One of the core ideas of the utility model is that the power driving component drives the scissors to synchronously close when the scissors advance to cut threads and synchronously open when the scissors retreat to return to the original position so as to meet the thread cutting requirement of an automatic sewing machine during sewing.
As shown in fig. 1 and 2, a pair of scissors comprises a first connecting plate 1, wherein a first blade 4 and a second blade 5 which are in an opening and closing shape are hinged on the first connecting plate 1, a limiting rod 10 is correspondingly arranged on the end surfaces of the first blade 4 and the second blade 5 which are on the same side, the front surface and the back surface of the first connecting plate 1 are respectively connected with a second connecting plate 2 and a third connecting plate 3 in a sliding manner, the third connecting plate 3 is connected with a fixed end of a telescopic cylinder 6, and a telescopic end of the telescopic cylinder 6 is connected with the second connecting plate 2;
one end of the second connecting plate 2 is provided with first kidney-shaped holes 11 corresponding to the two limiting rods 10 respectively, the two first kidney-shaped holes 11 are symmetrically distributed in an inclined manner with the central lines of the first blade 4 and the second blade 5, the two limiting rods 10 are respectively arranged in the corresponding first kidney-shaped holes 11 in a penetrating manner, and the diameter value of each limiting rod 10 is equal to the width value of the corresponding first kidney-shaped hole 11;
an elastic buffer mechanism is connected between the other end of the second connecting plate 2 and the first connecting plate 1, and when the second connecting plate 2 slides on the first connecting plate 1, the elastic buffer mechanism drives the first connecting plate 1 to move towards the direction close to the first blade 4 and the second blade 5.
It will be appreciated that the corresponding inner sides of the first and second blades 4, 5 are provided with cutting edges.
The first connecting plate 1, the second connecting plate 2 and the third connecting plate 3 which are mutually parallel and connected in a sliding way are respectively provided with a limiting rod 10, a first waist-shaped hole 11 and a telescopic cylinder 6, the telescopic cylinder 6 drives the first connecting plate 1 to move towards the engagement direction of the first blade 4 and the second blade 5, the limiting rod 10 on the first blade 4 and the limiting rod 10 on the second blade 5 respectively slide to the other end along one end of the first waist-shaped hole 11, so that the first blade 4 and the second blade 5 are changed into a closed shape from an open shape, and simultaneously, in the process of changing the states of the first blade 4 and the second blade 5, the elastic buffer mechanism is used for transmitting the state change, so that the first connecting plate 1 moves towards the direction close to the first blade 4 and the second blade 5, namely the first blade 4 and the second blade 5 are driven to integrally approach to a sewing thread to be cut when the states are changed, and the thread cutting requirement of the automatic sewing machine is met.
The above embodiments will be further explained below.
In this embodiment, a second waist-shaped hole 13 is formed in the second connecting plate 2 corresponding to the center line of the first blade 4 and the second blade 5, the first blade 4 and the second blade 5 are connected through a hinge rod 12, and one end of the hinge rod penetrates through the second waist-shaped hole 13.
Through the cooperation of hinge rod 12 and second waist hole, can prevent that second connecting plate 2 from the drive of telescopic cylinder 6 down stroke excessive, also can avoid causing destruction to gag lever post 10 because of the stroke is excessive, improve the life of scissors in this application.
In one embodiment, as shown in fig. 3, the extension lines of the long sides of the two first kidney-shaped holes 11 form a first included angle 21, the first blade 4 and the second blade 5 form a second included angle 22, and the opening direction of the first included angle 21 is the same as the opening direction of the second included angle 22.
It can be understood that the limiting rod 10 needs to slide from one end of the first kidney-shaped hole 11, i.e. the far end of the first included angle 21, to the other end, i.e. the near end of the first included angle 21, so as to reduce the angle of the second included angle 22, i.e. the first blade 4 and the second blade 5 perform a closed shearing action, when the first included angle 21 between the two first kidney-shaped holes 11 and the second included angle 22 between the two blades open in the same direction, the telescopic cylinder 6 performs an extending action from the original contracted state, i.e. drives the second connecting plate 2 to move towards the direction of the knife tip, so as to complete the shearing.
In the embodiment, when the first blade 4 and the second blade 5 are in the opened state, the limiting rod 10 is located at one end of the first kidney-shaped hole 11 close to the tool tip of the first blade 4;
it can be understood that when the first blade 4 and the second blade 5 are in the opening state, the two limiting rods 10 keep the maximum distance in the sliding process, namely, abut against one end of the first kidney-shaped hole 11, so as to limit the maximum opening amplitude of the first blade 4 and the second blade 5 and shorten the time length of the shearing action during the wire shearing.
In this embodiment, the elastic buffer mechanism includes a push plate 31 disposed at the other end of the second connecting plate 2, a baffle 32 disposed on the first connecting plate 1, and a first spring 33 disposed between the push plate 31 and the baffle 32, a connecting rod 34 is disposed on the push plate 31 or the baffle 32, a through hole for the connecting rod 34 to pass is disposed on the baffle 32 or the push plate 31, and the first spring 33 is disposed on the connecting rod 34 in a penetrating manner.
In the above embodiment, the first connecting plate 1 and the second connecting plate 2 are moved in the same direction by the elastic buffer mechanism. Specifically, when the scissors do shearing movement, the telescopic end of the telescopic cylinder 6 extends out to drive the second connecting plate 2 to move towards the direction of the knife tip, the distance between the push plate 31 and the baffle plate 32 is shortened and the first spring 33 is compressed synchronously, the baffle plate 32 receives the reaction force generated after the first spring 33 is compressed and transmits the reaction force, and then the first connecting plate 1 moves towards the direction of the knife tip, so that the first blade 4 and the second blade 5 are driven to integrally move synchronously, and the sewing thread is effectively sheared.
Under the buffering action of the elastic buffering part, the movement of the first connecting plate 1 is lagged relative to the movement of the second connecting plate 2, namely the movement speed of the first connecting plate 1 is slower than the sliding speed of the limiting rod 10, so that the whole body moves towards the sewing thread in the shearing movement process.
In one embodiment, as shown in fig. 4, the extension lines of the long sides of the two first kidney-shaped holes 11 form a first included angle 21, the first blade 4 and the second blade 5 form a second included angle 22, and the opening direction of the first included angle 21 is opposite to the opening direction of the second included angle 22.
It can be understood that the directions of the two included angles are opposite, that is, the vertex angles of the two included angles are corresponding, if the shearing action is to be completed, the telescopic cylinder 6 contracts from the original extending state, that is, the second connecting plate 2 is driven to move towards the opposite direction of the tool nose, and the shearing can be completed.
In the embodiment, when the first blade 4 and the second blade 5 are in the open state, the limiting rod 10 is located at one end of the first kidney-shaped hole 11 far away from the tip of the first blade 4.
In order to limit the maximum opening amplitude of the first blade 4 and the second blade 5 and shorten the shearing action time during line shearing, the two limiting rods 10 are respectively and correspondingly abutted against the other end of the first waist-shaped hole 11.
In this embodiment, as shown in fig. 5, a supporting plate 41 connected between the first connecting plate 1 and the second connecting plate 2 is disposed on a side wall of a fixed end of the telescopic cylinder 6, the elastic buffer mechanism includes a rotary rod 42, a second spring 43 and a sleeve 44, two ends of the rotary rod 42 are respectively connected with the sleeve 44 in a sliding and nesting manner, outer ends of the two sleeves 44 are both closed and are respectively connected with the first connecting plate 1 and the second connecting plate 2, a rotary joint 45 rotatably connected with the supporting plate 41 is disposed in a middle of the rotary rod 42, the second spring 43 is disposed between the rotary joint 45 and an end surface of the sleeve 44 in a butting manner, and when the first blade 4 and the second blade 5 are in an open state, the second spring 43 is in a compressed state.
It should be noted that the end of the rotary rod 42 is provided with a limit structure to prevent the sleeve 44 from falling off when sliding outwards on the rotary rod 42.
Understandably, the elastic buffer mechanism in the above embodiment is rotatably disposed on the supporting plate 41 connected to the fixed end of the telescopic cylinder 6, and two ends of the elastic buffer mechanism are respectively rotatably connected to the first connecting plate 1 and the second connecting plate 2; specifically, when the first blade 4 and the second blade 5 are in the open state, the telescopic cylinder 6 is in the extended state. When telescopic cylinder 6 contracts, drive second connecting plate 2 and slide down, second connecting plate 2 drives sleeve 44 and also moves down, and by the perk with first connecting plate 1's sleeve 44, second spring 43 obtains the space of upwards bounce to bounce first connecting plate 1 upwards through second spring 43. So as to meet the requirement that the first connecting plate 1 can move upwards to drive the first blade 4 and the second blade 5 to approach the sewing thread even when the second connecting plate 2 moves downwards.
In an embodiment, as shown in fig. 1, a fixed end of the telescopic cylinder 6 is connected to a side wall of the third connecting plate 3, a telescopic end of the telescopic cylinder 6 performs telescopic motion along a length direction of the third connecting plate 3, a corner connecting plate 51 is disposed on a front surface of the second connecting plate 2, one side surface of the corner connecting plate 51 is connected to the second connecting plate 2, and the other side surface of the corner connecting plate 51 is connected to the telescopic end; specifically, the corner connecting plate 51 is a right angle, which can ensure that the telescopic cylinder 6 drives the second connecting plate 2 to slide in the vertical movement process.
In an embodiment, a sliding block 52 and a sliding rail 53 which are matched with each other are respectively arranged between the first connecting plate 1 and the second connecting plate 2 and between the first connecting plate 1 and the third connecting plate 3. The three connecting plates are provided with a mutually slidable carrier mechanism through the slide blocks 52 and the slide rails 53.
Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or terminal that comprises the element.
The scissors provided by the present invention are described in detail above, and the principle and the implementation of the present invention are explained in the present document by applying specific examples, and the descriptions of the above examples are only used to help understanding the method and the core idea of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (10)
1. A pair of scissors comprises a first connecting plate, wherein a first blade and a second blade which are in an opening and closing shape are hinged to the first connecting plate, and the scissors are characterized in that limiting rods are correspondingly arranged on the end faces of the first blade and the second blade, the front face and the back face of the first connecting plate are respectively connected with a second connecting plate and a third connecting plate in a sliding mode, the third connecting plate is connected with the fixed end of a telescopic cylinder, and the telescopic end of the telescopic cylinder is connected with the second connecting plate;
one end of the second connecting plate is provided with first waist-shaped holes corresponding to the two limiting rods respectively, the two first waist-shaped holes are symmetrically distributed in an inclined mode according to the center lines of the first blade and the second blade, the two limiting rods penetrate through the corresponding first waist-shaped holes respectively, and the diameter value of each limiting rod is equal to the width value of each first waist-shaped hole;
an elastic buffer mechanism is connected between the other end of the second connecting plate and the first connecting plate, and when the second connecting plate slides on the first connecting plate, the elastic buffer mechanism drives the first connecting plate to move towards the direction close to the first blade and the second blade.
2. The scissors of claim 1, wherein the second connecting plate is provided with a second waist-shaped hole corresponding to the center line of the first blade and the second blade, the first blade and the second blade are connected by a hinge rod, and one end of the hinge rod is inserted into the second waist-shaped hole.
3. The scissors of claim 1, wherein the extension lines of the long sides of the two first kidney-shaped holes form a first included angle, the first blade and the second blade form a second included angle, and the opening direction of the first included angle is the same as the opening direction of the second included angle.
4. The scissors of claim 3 wherein the stop lever is located at an end of the first kidney-shaped aperture proximate to the tip of the first blade when the first and second blades are in the open configuration.
5. The scissors according to claim 4, wherein the elastic buffer mechanism comprises a push plate disposed at the other end of the second connecting plate, a baffle plate disposed on the first connecting plate, and a first spring disposed between the push plate and the baffle plate, wherein a connecting rod is disposed on the push plate or the baffle plate, a through hole for the connecting rod to pass through is disposed on the baffle plate or the push plate, and the first spring is disposed on the connecting rod in a penetrating manner.
6. The scissors of claim 1, wherein the extension lines of the long sides of the first waist-shaped holes form a first included angle, the first blade and the second blade form a second included angle, and the opening direction of the first included angle is opposite to the opening direction of the second included angle.
7. The scissors of claim 6 wherein the stop bar is located on an end of the first kidney-shaped aperture distal from the tip of the first blade when the first and second blades are in the open configuration.
8. The scissors of claim 7, wherein a support plate connected between the first connecting plate and the second connecting plate is arranged on a side wall of a fixed end of the telescopic cylinder, the elastic buffer mechanism comprises a rotary rod, a second spring and a sleeve, two ends of the rotary rod are respectively connected with the sleeve in a sliding and nesting manner, outer ends of the two sleeves are both closed and are respectively connected with the first connecting plate and the second connecting plate, a rotary joint rotatably connected with the support plate is arranged in the middle of the rotary rod, the second spring is arranged between the rotary joint and an end face of the sleeve in a butt joint manner, and when the first blade and the second blade are in an opened state, the second spring is in a compressed state.
9. The scissors of claim 1, wherein a fixed end of the telescopic cylinder is connected with a side wall of the third connecting plate, a telescopic end of the telescopic cylinder telescopically moves along a length direction of the third connecting plate, a corner connecting plate is arranged on a front surface of the second connecting plate, one side surface of the corner connecting plate is connected with the second connecting plate, and the other side surface of the corner connecting plate is connected with the telescopic end.
10. The scissors of claim 1, wherein a slider and a slide rail are disposed between the first connecting plate and the second connecting plate, and between the first connecting plate and the third connecting plate, respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122843479.3U CN216473862U (en) | 2021-11-18 | 2021-11-18 | A kind of scissors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122843479.3U CN216473862U (en) | 2021-11-18 | 2021-11-18 | A kind of scissors |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216473862U true CN216473862U (en) | 2022-05-10 |
Family
ID=81396144
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122843479.3U Active CN216473862U (en) | 2021-11-18 | 2021-11-18 | A kind of scissors |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216473862U (en) |
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2021
- 2021-11-18 CN CN202122843479.3U patent/CN216473862U/en active Active
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