CN108927240A - A kind of change pretightning force test tube clamp - Google Patents
A kind of change pretightning force test tube clamp Download PDFInfo
- Publication number
- CN108927240A CN108927240A CN201811099215.8A CN201811099215A CN108927240A CN 108927240 A CN108927240 A CN 108927240A CN 201811099215 A CN201811099215 A CN 201811099215A CN 108927240 A CN108927240 A CN 108927240A
- Authority
- CN
- China
- Prior art keywords
- tong arm
- clamp device
- test tube
- slot
- clamp
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L9/00—Supporting devices; Holding devices
- B01L9/06—Test-tube stands; Test-tube holders
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L9/00—Supporting devices; Holding devices
- B01L9/50—Clamping means, tongs
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- Health & Medical Sciences (AREA)
- Clinical Laboratory Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
The present invention relates to a kind of change pretightning force test tube clamps, its structure includes the first tong arm, clamp device, main shaft, second tong arm, anti-skidding clamping head, slot, spring, it is characterized in that, the first tong arm lower part connecting spring, connection is constrained by the hinge of main shaft in the middle part of first tong arm, first tong arm top and the middle part of the second tong arm pass through hinge constraint connection, the second tong arm lower part is equipped with slot, clamp device is located in slot, when clamp device unclamps, clamp device can be slided along slot, clamp device becomes hinge constraint when locking, rotate the second tong arm lower part centered on clamp device, the second tong arm top is equipped with anti-skidding clamping head, prevent test tube from falling.By changing clamp device position, the arm of force of the second tong arm is further changed, achievees the purpose that test tube clamp is made to change clamping pretightning force.
Description
Technical field
The invention belongs to experiment equipment fields, and in particular to a kind of change pretightning force test tube clamp.
Background technique
At present in each large enterprises, scientific research institutions, test tube clamp is a kind of equipment being commonly used.At present in use process
In, often using etc. force arm type duals, i.e., for test tube clamp when clamping different tube diameters test tube, the test tube clamp arm of force is equal.This device
It will appear problem in the test tube that holding test tubes caliber differs greatly.It, can when clamping thin test tube if spring tension is excessively sufficient
Works fine, but while clamping thick test tube, to will cause chucking power excessive, and test tube handling need to take compared with great strength；And spring tension is inadequate
When clamping thick test tube can works fine, but clamp thin test tube when often can't clip, fall test tube.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of change pretightning force test tube clamp, which can adjust on demand
The whole arm of force can be changed, and then can adapt to when initial tension of spring is constant by rack for test tube chucking power when the change arm of force
The clamping of different tube diameters test tube.
In order to solve the above technical problems, the technical scheme adopted by the invention is as follows:
A kind of change pretightning force test tube clamp, structure include the first tong arm, clamp device, main shaft, the second tong arm, anti-skidding clamping
Head, slot, spring, which is characterized in that the first tong arm lower part connecting spring, the first tong arm middle part pass through main shaft
By hinge constraint connection, the second tong arm lower part is equipped at the middle part of hinge constraint connection, the first tong arm top and the second tong arm
Slot, clamp device are located in slot, and when clamp device unclamps, clamp device can be slided along slot, and clamp device becomes hinge about when locking
Beam rotates the second tong arm lower part centered on clamp device, and the second tong arm top is equipped with anti-skidding clamping head, prevents from trying
Pipe is fallen.
Design principle of the invention:
The present invention mainly on the basis of traditional test tube clamp, increases the mechanism of an adjustable force moment.Under second tong arm
There is slot in portion, and when clamp device is fixed on the different location of the second tong arm lower part, according to lever principle, tensioned power is constant
When, the dynamics of clamping can change, when the hinge joint (i.e. at clamp device) of the second tong arm lower part farther out from main shaft when, second
The arm of force of tong arm lower part is big, and equidistantly when mobile first tong arm, the folding range of the second tong arm reduces, and chucking power is bigger.Otherwise it is tight
It is fixedly mounted with when setting closer from main shaft, chucking power is smaller.
Beneficial effects of the present invention:
It can be seen that a kind of change pretightning force test tube clamping structure provided by the invention is simple by above-mentioned principle design, operation letter
Just, practical, manufacturing cost is low.It can reach in the case where not changing initial tension of spring, pass through clamp device position
Variation changes test tube clamping force, has good adaptation effect to the clamping of thick test tube and thin test tube.
Detailed description of the invention
Fig. 1 is a kind of schematic diagram of change pretightning force test tube clamp of the embodiment of the present invention 1.In figure: 1 first tong arm, 2 fastening dresses
It sets, 3 main shafts, 4 second tong arms, 5 anti-skidding clamping heads, 6 slots, 7 springs.
Specific embodiment
Embodiment 1
A kind of change pretightning force test tube clamp, structure include the first tong arm 1, and clamp device 2, main shaft 3, the second tong arm 4 is anti-skidding
Clamping head 5, slot 6, spring 7, which is characterized in that the 1 lower part connecting spring 7 of the first tong arm, 1 middle part of the first tong arm
It being constrained and is connected by the hinge of main shaft 3, the middle part of 1 top of the first tong arm and the second tong arm 4 is connected by hinge constraint, and described second
4 lower part of tong arm is equipped with slot 6, and clamp device 2 is located in slot 6, and when clamp device 2 unclamps, clamp device 2 can be slided along slot 6, fastening
Device 2 becomes hinge constraint when locking, rotate 4 lower part of the second tong arm centered on clamp device 2, on second tong arm 4
Portion is equipped with anti-skidding clamping head 5, prevents test tube from falling.
Undeclared part involved in the present invention is same as the prior art or is realized using the prior art.
Claims (1)
1. a kind of change pretightning force test tube clamp, structure includes the first tong arm (1), clamp device (2), main shaft (3), the second tong arm
(4), anti-skidding clamping head (5), slot (6), spring (7), which is characterized in that described the first tong arm (1) the lower part connecting spring (7),
Hinge in the middle part of first tong arm (1) by main shaft (3), which constrains, to be connected, in the first tong arm (1) top and the second tong arm (4)
Portion is equipped with slot (6) by hinge constraint connection, the second tong arm (4) lower part, and clamp device (2) is located in slot (6), fastening dress
When setting (2) release, clamp device (2) can be slided along slot (6), and clamp device (2) becomes hinge constraint when locking, and make the second tong arm
(4) lower part is rotated centered on clamp device (2), and the second tong arm (4) top is equipped with anti-skidding clamping head (5), prevents from trying
Pipe is fallen.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811099215.8A CN108927240A (en) | 2018-09-21 | 2018-09-21 | A kind of change pretightning force test tube clamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811099215.8A CN108927240A (en) | 2018-09-21 | 2018-09-21 | A kind of change pretightning force test tube clamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108927240A true CN108927240A (en) | 2018-12-04 |
Family
ID=64443758
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811099215.8A Pending CN108927240A (en) | 2018-09-21 | 2018-09-21 | A kind of change pretightning force test tube clamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108927240A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110270390A (en) * | 2019-07-22 | 2019-09-24 | 贵州师范大学 | A kind of resolution pincers heated for graphite electric heating plate in resolution experiment |
| CN110449200A (en) * | 2019-09-11 | 2019-11-15 | 宁夏金域医学检验所（有限公司） | A kind of translator for medicine test tube transfer process |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201720067U (en) * | 2010-06-21 | 2011-01-26 | 李明红 | Medical test tube holder |
| CN203577834U (en) * | 2013-09-06 | 2014-05-07 | 楚双印 | Novel test tube clamp |
| CN204699740U (en) * | 2015-05-31 | 2015-10-14 | 刘策 | A kind of Senior Biology experiment test tube clamp |
| CN205288499U (en) * | 2016-01-18 | 2016-06-08 | 宏葵生物（中国）有限公司 | Test tube clamp |
| CN206392124U (en) * | 2017-01-11 | 2017-08-11 | 崔藏月 | A kind of Senior Biology experiment test tube clamp |
| CN107537606A (en) * | 2017-10-21 | 2018-01-05 | 程义新 | A kind of clinical laboratory's test tube clamp |
| CN207289864U (en) * | 2017-09-29 | 2018-05-01 | 中国煤炭地质总局一一九勘探队 | A kind of crucible tongs of the adjustable arm of force |
-
2018
- 2018-09-21 CN CN201811099215.8A patent/CN108927240A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201720067U (en) * | 2010-06-21 | 2011-01-26 | 李明红 | Medical test tube holder |
| CN203577834U (en) * | 2013-09-06 | 2014-05-07 | 楚双印 | Novel test tube clamp |
| CN204699740U (en) * | 2015-05-31 | 2015-10-14 | 刘策 | A kind of Senior Biology experiment test tube clamp |
| CN205288499U (en) * | 2016-01-18 | 2016-06-08 | 宏葵生物（中国）有限公司 | Test tube clamp |
| CN206392124U (en) * | 2017-01-11 | 2017-08-11 | 崔藏月 | A kind of Senior Biology experiment test tube clamp |
| CN207289864U (en) * | 2017-09-29 | 2018-05-01 | 中国煤炭地质总局一一九勘探队 | A kind of crucible tongs of the adjustable arm of force |
| CN107537606A (en) * | 2017-10-21 | 2018-01-05 | 程义新 | A kind of clinical laboratory's test tube clamp |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110270390A (en) * | 2019-07-22 | 2019-09-24 | 贵州师范大学 | A kind of resolution pincers heated for graphite electric heating plate in resolution experiment |
| CN110449200A (en) * | 2019-09-11 | 2019-11-15 | 宁夏金域医学检验所（有限公司） | A kind of translator for medicine test tube transfer process |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20181204 |