CN212287721U - Laboratory sample preparation scissors - Google Patents
Laboratory sample preparation scissors Download PDFInfo
- Publication number
- CN212287721U CN212287721U CN202020315226.1U CN202020315226U CN212287721U CN 212287721 U CN212287721 U CN 212287721U CN 202020315226 U CN202020315226 U CN 202020315226U CN 212287721 U CN212287721 U CN 212287721U
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- Prior art keywords
- handle
- knife
- crank
- blade
- sword
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- 239000006101 laboratory sample Substances 0.000 title claims abstract description 14
- 238000002360 preparation method Methods 0.000 title claims abstract description 14
- 238000003466 welding Methods 0.000 claims abstract 2
- 241000561734 Celosia cristata Species 0.000 claims 1
- 210000001520 comb Anatomy 0.000 claims 1
- 239000000523 sample Substances 0.000 description 11
- 238000010008 shearing Methods 0.000 description 10
- 238000005520 cutting process Methods 0.000 description 6
- 238000013461 design Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 210000003811 finger Anatomy 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000000123 paper Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 210000003813 thumb Anatomy 0.000 description 1
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- Scissors And Nippers (AREA)
Abstract
The utility model discloses a laboratory sample preparation scissors belongs to laboratory scissors technical field, and its technical scheme main points include lower sword handle and upper slitter handle, the head end of lower sword handle is connected with lower sword crank, and lower sword crank's tip installs the lower knife rest, the equidistance is fixed with the bottom knife on the lower knife rest, the upper slitter handle is settled in one side of lower sword handle, and the head end of upper slitter handle is connected with upper slitter crank, the upper knife rest is installed to upper slitter articulate tip, and the equidistance welding has the upper knife blade on the upper knife rest, the position through connection that bottom knife and upper knife blade overlapped has the axis of return, be connected with the spring pin pole between lower sword handle and lower sword crank's link and upper knife handle and the upper knife crank's link, and the outside cover of spring pin pole is equipped with the inner spring. The messenger is loosening the scissors after, and the lower blade can separately reset fast with last blade to help avoiding scissors two sword problem that the adhesion appears, and the setting of spring pin pole and interior spring makes the sword mouth that makes whole scissors can open automatically, and has stable elasticity.
Description
Technical Field
The utility model belongs to the technical field of the scissors is used in the laboratory, more specifically says, it relates to a laboratory sample preparation scissors.
Background
The scissors are double-edge tools for cutting sheet or linear objects such as cloth, paper, steel plates, ropes, round steel and the like, the two edges are staggered and can be opened and closed, the scissors cut the objects by utilizing shearing force generated when the two edges are staggered, and the scissors are very convenient to use, convenient and fast to use and play an important role in daily life.
At present, the scissors used in the laboratory have wider applicable objects than common scissors, so the sharpness of the scissors can be improved as much as possible, for example, the blades are thinner, and the cutting edges are sharper. However, in the prior art, the thinner blade of the scissors is easy to cause the deformation of the scissors, thereby greatly shortening the service life of the scissors, and the thinner blade of the scissors is not beneficial to the scissors to cut thicker, larger or more flexible objects.
Patent CN204997700U, a laborsaving just used type scissors is used in laboratory is disclosed, wear to hold the structure improvement for a plurality of fingers through the finger with two handles and wear to hold and the palm is close to the structure of pressing of thumb position, the shearing force of scissors has been showing to have increased, laborsaving effect has been realized, and realized the automatic function of opening between two handles through setting up the pressure spring, the manual time that makes two handles open of having saved, the efficiency is improved, be convenient for use, but this laborsaving just used type scissors exists to be difficult to cut characteristics such as thicker, great or more tough object.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art exists, the utility model aims to provide a laboratory sample preparation scissors, its advantage lies in can cuting the object that is thicker, great or has toughness.
In order to achieve the above purpose, the utility model provides a following technical scheme: a pair of laboratory sample preparation scissors comprises a lower knife handle and an upper knife handle, wherein the head end of the lower knife handle is connected with a lower knife crank, the end part of the lower knife crank is provided with a lower knife rest, a lower blade is fixed on the lower knife rest at equal distance, the upper knife handle is arranged on one side of the lower knife handle, the head end of the upper knife handle is connected with an upper knife crank, the end part of the upper knife crank is provided with an upper knife rest, and the upper knife rest is equidistantly welded with an upper blade, the end parts of the lower blade and the upper blade are both provided with tooth mouths, the cutting edge of the lower blade is of a sawtooth structure, the cutting edge of the upper blade is of a linear structure, a reset shaft is penetratingly connected at the overlapped position of the lower blade and the upper blade, a spring pin rod is connected between the connecting end of the lower knife handle and the lower knife crank and the connecting end of the upper knife handle and the upper knife crank, and an inner spring is sleeved on the outer side of the spring pin rod.
Through adopting above-mentioned technical scheme, when using, the linear type structural design of sawtooth structure and last blade through the bottom knife, make this scissors have stronger biting power, thereby can effectively improve the result of use and the sharpness of this scissors, and can cut off the sample that has certain toughness, length, for example vermicelli etc., and can not lead to the fact great damage to the scissors, the design of tooth mouth simultaneously, the sharpness of this scissors tip has been improved, make the tip of this scissors also have stronger shearing force, and can avoid sample roll-off twolip, the problem that can not once cut off, the design of inner spring, can let the tool bit open automatically.
The utility model discloses further set up to: the lower blades and the upper blades are in one-to-one correspondence, and are arranged in an X-shaped crossed manner.
By adopting the technical scheme, the arrangement of the upper and lower blades (specifically the lower blade and the upper blade) effectively improves the use performance of the scissors, so that the shearing force of the scissors is larger, and the shearing range is wider.
The utility model discloses further set up to: and locking screws are screwed into the end parts of the lower blade and the upper blade, and the tooth mouths are respectively arranged at the end parts of the lower blade and the upper blade through the locking screws.
Through adopting above-mentioned technical scheme, locking screw's setting, the purpose can be adjusted the angle of tooth mouth on lower blade and last blade to make the tooth mouth be in on the best position, in order to improve the performance of scissors, and the tooth mouth can be dismantled, in order to change and maintain.
The utility model discloses further set up to: the reset shaft is composed of a shaft lever and a torsion spring, and the torsion spring is sleeved outside the shaft lever at equal intervals.
Through adopting above-mentioned technical scheme, the axle that resets is used for after loosening the scissors, makes bottom knife and last blade can part fast, reset to help avoiding scissors two sword problem that the adhesion appears.
The utility model discloses further set up to: the position of the torsion spring corresponds to the position of the connection between the lower blade and the upper blade.
Through adopting above-mentioned technical scheme, the torsional spring is used for providing the elasticity that lower blade and last blade are separately for can reset fast between lower blade and the last blade.
The utility model discloses further set up to: the lower knife handle, the lower knife crank, the upper knife handle and the upper knife crank form an elastic structure through a spring pin rod and an inner spring.
Through adopting above-mentioned technical scheme, the setting of spring pin pole and inner spring for the sword mouth of whole scissors can open automatically, and has stable elasticity.
The utility model discloses further set up to: a safety locking rope is arranged between the tail end of the lower knife handle and the tail end of the upper knife handle.
By adopting the technical scheme, the safety lock rope is arranged and is used for limiting the opening range between the lower knife handle and the upper knife handle, so that the lower knife handle and the upper knife handle are prevented from being separated, and a user is prevented from being injured.
To sum up, the utility model has the advantages of it is following:
1. through the combined design of the serrated lower blade and the linear upper blade, the scissors have stronger biting force, so that the using effect and sharpness of the scissors can be effectively improved, samples with certain toughness and length can be cut off, and meanwhile, the scissors cannot be greatly damaged;
2. the sharpness of the end part of the scissors is improved through the tooth openings, so that the end part of the scissors also has stronger shearing force, and a sample can be prevented from sliding out of double edges;
3. through the setting of the axle that resets, make after loosening the scissors, the bottom knife can part fast with last blade and reset to help avoiding the problem that the adhesion appears in scissors two sword, and the setting of spring pin pole and inner spring makes the sword mouth that makes whole scissors can open automatically, and has stable elasticity.
Drawings
FIG. 1 is a schematic structural view of the present embodiment;
FIG. 2 is a schematic view of the assembled structure of the lower blade and the upper blade of the present embodiment;
fig. 3 is a schematic structural view of a reset shaft of the present embodiment;
description of reference numerals: 1. a lower tool grip; 2. a lower cutter crank; 3. a lower tool rest; 4. a lower blade; 5. a handle of the upper knife; 6. a cutter feeding crank; 7. an upper tool rest; 8. an upper blade; 9. a mouth of a tooth; 10. locking screws; 11. a reset shaft; 1101. a shaft lever; 1102. a torsion spring; 12. a spring pin; 13. an inner spring; 14. and (4) a safety locking rope.
Detailed Description
The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention.
The components of the embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention.
Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
A pair of laboratory sample preparation scissors comprises a lower knife handle 1 and an upper knife handle 5, wherein the head end of the lower knife handle 1 is connected with a lower knife crank 2, the end of the lower knife crank 2 is provided with a lower knife rest 3, lower blades 4 are fixed on the lower knife rest 3 at equal distances, the upper knife handle 5 is arranged on one side of the lower knife handle 1, the head end of the upper knife handle 5 is connected with an upper knife crank 6, the end of the upper knife crank 6 is provided with an upper knife rest 7, the upper blades 8 are welded on the upper knife rest 7 at equal distances, the lower blades 4 correspond to the upper blades 8 one by one, the lower blades 4 and the upper blades 8 are arranged in an X-shaped cross mode, the arrangement of the lower blades 4 and the upper blades 8 effectively improves the service performance of the scissors, the shearing force of the scissors is larger, and the shearing range is wider.
As shown in fig. 1 and 2, the end portions of the lower blade 4 and the upper blade 8 are respectively provided with a tooth opening 9, the end portion of the lower blade 4 and the end portion of the upper blade 8 are respectively screwed with a locking screw 10, the tooth opening 9 is respectively arranged at the end portion of the lower blade 4 and the end portion of the upper blade 8 through the locking screws 10, and the angles of the tooth opening 9 on the lower blade 4 and the upper blade 8 can be adjusted by the arrangement of the locking screws 10, so that the tooth opening 9 is located at the optimal position to improve the usability of the scissors, and the tooth opening 9 can be detached to facilitate replacement and maintenance.
As shown in fig. 1 and 2, the cutting edge of the lower blade 4 is of a sawtooth structure, the cutting edge of the upper blade 8 is of a linear structure, and the sawtooth structure of the lower blade 4 and the linear structure of the upper blade 8 are designed, so that the scissors have strong snapping force, the using effect and the sharpness of the scissors can be effectively improved, samples with certain toughness and length, such as vermicelli, can be cut off, and the scissors cannot be damaged greatly.
As shown in fig. 1 and 3, a reset shaft 11 is connected to a position where the lower blade 4 and the upper blade 8 overlap, the reset shaft 11 is composed of a shaft lever 1101 and a torsion spring 1102, the torsion spring 1102 is sleeved outside the shaft lever 1101 at equal intervals, the reset shaft 11 is used for promoting the lower blade 4 and the upper blade 8 to be quickly separated and reset after the scissors are loosened, so that the problem of adhesion between two edges of the scissors is avoided, the position of the torsion spring 1102 corresponds to the position where the lower blade 4 and the upper blade 8 are handed over, and the torsion spring 1102 is used for providing elasticity for separating the lower blade 4 and the upper blade 8, so that the lower blade 4 and the upper blade 8 can be quickly reset.
As shown in fig. 1, a spring pin 12 is connected between the connection end of the lower knife handle 1 and the lower knife crank 2 and the connection end of the upper knife handle 5 and the upper knife crank 6, and an inner spring 13 is sleeved outside the spring pin 12, the elastic structure is formed between the lower knife handle 1, the lower knife crank 2, the upper knife handle 5 and the upper knife crank 6 through the spring pin 12 and the inner spring 13, the arrangement of the spring pin 12 and the inner spring 13 enables the knife mouth of the whole scissors to be automatically opened and to have stable elasticity, a safety locking rope 14 is arranged between the tail end of the lower knife handle 1 and the tail end of the upper knife handle 5, and the arrangement of the safety locking rope 14 is used for limiting the opening range between the lower knife handle 1 and the upper knife handle 5, so as to prevent the lower knife handle 1 and the upper knife handle 5 from being separated and injuring a user.
The utility model discloses a working process and beneficial effect as follows: when the sample shearing machine works, a sample to be sheared in an experiment is placed at the position of a knife nozzle, namely between the end parts of the lower blade 4 and the upper blade 8, the lower knife handle 1 and the upper knife handle 5 are moved, and the shearing action is performed between the lower blades 4 and the upper blades 8 by utilizing the lever principle, so that the sample is sheared, and when the sample is sheared, the teeth 9 on the lower blades 4 and the upper blades 8 are sheared first, namely, the sample is sheared first, and the sample can be completely wrapped in the knife nozzle and cannot be sheared without falling off.
After the sample is cut off, unclamp lower tool grip 1 and upper tool grip 5, the elasticity of spring pin pole 12 and inner spring 13 makes the tool bit of this scissors open automatically, and reset shaft 11 also can utilize the elasticity of torsional spring 1102 on it, separate two corresponding lower blade 4 and upper blade 8 fast, the sample of so being cut off just can be followed the scissors and thoroughly separated, the adhesion problem can not take place between the upper and lower blade everywhere of this scissors, so outside the performance that has improved this scissors, the life of this scissors has still been prolonged.
The above description is only the preferred embodiment of the present invention, and is not intended to limit the present invention, any modification, equivalent replacement, or improvement made within the design concept of the present invention should be included within the protection scope of the present invention.
Claims (7)
1. The utility model provides a laboratory sample preparation scissors, includes lower sword handle (1) and upper knife handle (5), its characterized in that: the head end of lower sword handle (1) is connected with lower sword crank (2), and lower sword crank (3) are installed to the tip of lower sword crank (2), equidistant lower knife (4) of being fixed with in lower sword crank (3), one side at lower sword handle (1) is settled to upper sword handle (5), and the head end of upper sword handle (5) is connected with upper sword crank (6), upper knife rest (7) are installed to the tip of upper sword crank (6), and the equidistant welding of upper knife rest (7) has upper knife blade (8), tooth mouth (9) are all installed to the tip of lower knife (4) and upper knife blade (8), the blade of lower knife (4) is the cockscomb structure, the blade of upper knife (8) is linear type structure, the position run-through connection that lower knife (4) and upper knife (8) overlapped has reset shaft (11), the link of lower sword crank (1) and lower sword crank (2) and upper knife handle (5) and upper knife crank (6) have reset shaft (11), lower sword handle (1) and upper knife handle (6) have A spring pin rod (12) is connected between the connecting ends, and an inner spring (13) is sleeved on the outer side of the spring pin rod (12).
2. Laboratory sample preparation scissors according to claim 1, characterized in that: the lower blades (4) and the upper blades (8) are in one-to-one correspondence, and the lower blades (4) and the upper blades (8) are arranged in an X-shaped crossed manner.
3. Laboratory sample preparation scissors according to claim 1, characterized in that: and locking screws (10) are screwed into the end parts of the lower blade (4) and the upper blade (8), and the tooth mouths (9) are respectively arranged at the end parts of the lower blade (4) and the upper blade (8) through the locking screws (10).
4. Laboratory sample preparation scissors according to claim 1, characterized in that: the reset shaft (11) is composed of a shaft lever (1101) and a torsion spring (1102), and the torsion spring (1102) is sleeved outside the shaft lever (1101) at equal intervals.
5. Laboratory sample preparation scissors according to claim 4, characterized in that: the position of the torsion spring (1102) corresponds to the position of the connection between the lower blade (4) and the upper blade (8).
6. Laboratory sample preparation scissors according to claim 1, characterized in that: the elastic structure is formed by the lower knife handle (1), the lower knife crank (2), the upper knife handle (5) and the upper knife crank (6) through a spring pin rod (12) and an inner spring (13).
7. Laboratory sample preparation scissors according to claim 1, characterized in that: a safety locking rope (14) is arranged between the tail end of the lower knife handle (1) and the tail end of the upper knife handle (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020315226.1U CN212287721U (en) | 2020-03-14 | 2020-03-14 | Laboratory sample preparation scissors |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020315226.1U CN212287721U (en) | 2020-03-14 | 2020-03-14 | Laboratory sample preparation scissors |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212287721U true CN212287721U (en) | 2021-01-05 |
Family
ID=73957834
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020315226.1U Expired - Fee Related CN212287721U (en) | 2020-03-14 | 2020-03-14 | Laboratory sample preparation scissors |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212287721U (en) |
-
2020
- 2020-03-14 CN CN202020315226.1U patent/CN212287721U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210105 |