CN210293391U - Balance convenient to balance is weighed before test tube centrifugation - Google Patents
Balance convenient to balance is weighed before test tube centrifugation Download PDFInfo
- Publication number
- CN210293391U CN210293391U CN201921406951.3U CN201921406951U CN210293391U CN 210293391 U CN210293391 U CN 210293391U CN 201921406951 U CN201921406951 U CN 201921406951U CN 210293391 U CN210293391 U CN 210293391U
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- China
- Prior art keywords
- test tube
- balance
- crossbeam
- centrifugation
- tray frame
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- 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.)
- Expired - Fee Related
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- 238000005119 centrifugation Methods 0.000 title claims abstract description 15
- 238000005303 weighing Methods 0.000 claims description 8
- 241000973497 Siphonognathus argyrophanes Species 0.000 abstract 1
- 238000000034 method Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
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Abstract
The utility model discloses a balance convenient to balance is weighed before test tube centrifugation, the on-line screen storage device comprises a base, the top surface middle part fixedly connected with fulcrum axle of base, the top fixedly connected with graduated disk of fulcrum axle, the middle part of fulcrum axle is rotated through the edge of a knife and is connected with the crossbeam, the middle part joint of crossbeam has the pointer, the both ends top fixedly connected with tray frame of crossbeam, the top surface of tray frame is provided with balance test-tube platform, surface one side joint of crossbeam has the scale, the one end sliding connection of scale has the vernier. The utility model discloses a be provided with palette frame, balance test tube platform and fixation clamp, when convenient tray frame and balance test tube platform welded fastening, can insert the test tube on balance test tube platform surface in the test tube groove for the back is erect to the test tube, and solution in the test tube can not be stained with in test tube wall and test tube mouth department gap, makes the solution loss reduce, and solution solute proportional accuracy improves.
Description
Technical Field
The utility model discloses laboratory paraphernalia technical field, in particular to balance convenient to weigh before test tube centrifugation.
Background
A commonly used weighing tool for a laboratory is composed of a tray, a cross beam, a balance nut, an index plate, a pointer, a knife edge, a base, a scale, a tray, a vernier scale, weights and the like. The balance is manufactured according to the lever principle, two small discs are respectively arranged at two ends of a lever, an object to be weighed is placed at the left end, a weight is placed at the right end, a pointer is arranged in the center of the lever, when the two ends are balanced, the mass (weight) of the two ends is equal, the balance is a common balancer, and the conventional tray balance mainly has the following three problems.
When the traditional tray balance is used, the tray can move, but if the tray leaves the original position after the balance is balanced, the stress point is slightly changed, so that the weighing is inaccurate, and test tubes with different masses are placed into a centrifugal machine for centrifugation, so that the centrifugal machine is easily damaged;
secondly, the test tube is cylindrical and rolls in different degrees after being placed in the tray, so that inaccurate measurement can be caused when the test tube and the tray move, the balance is inconvenient and complicated in balancing process, the balance needs to go through a balancing process after the test tube is taken down and the solution is added every time, the process is time-consuming and labor-consuming, the solution is wasted, and the solution solute proportion is inaccurate;
and thirdly, after the test tube is placed in the tray, the solution is stuck in a gap between the wall of the test tube and the opening of the test tube, so that the solution is wasted and the ratio of the solvent to the solute is inaccurate.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a main aim at provides a balance convenient to weigh before test tube centrifugation is balanced, can effectively solve the problem in the background art.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a balance convenient to weigh trim before test tube centrifugation, includes the base, the top surface middle part fixedly connected with fulcrum axle of base, the top fixedly connected with graduated disk of fulcrum axle, the middle part of fulcrum axle is rotated through the edge of a knife and is connected with the crossbeam, the middle part joint of crossbeam has the pointer, the both ends top fixedly connected with tray frame of crossbeam, the top surface of tray frame is provided with balance test-tube table, the surperficial one side joint of crossbeam has the scale, the one end sliding connection of scale has the vernier, the both ends of crossbeam are provided with balanced nut, balance test-tube table is about fulcrum axle symmetric distribution.
Furthermore, the balance test tube table is of a cylindrical table-shaped structure, and a test tube groove is formed in the surface of the balance test tube table.
Furthermore, the bottom end of the balance test tube table is clamped with the tray frame through a fixing clamp, and the balance test tube table is of a detachable structure.
Further, the balance test tube table is welded with the tray frame.
Furthermore, the test tube groove is provided with a plurality of test tube grooves, the specification of the test tube groove is 1-2ml, 5ml, 10ml or 50ml, and the top end opening and the bottom end of the test tube groove are closed.
Further, the tray frame is of a cylindrical structure, and the tray on the surface of the tray frame is of a detachable structure.
Further, the fulcrum shaft is of a cylindrical rod-shaped structure and is arranged in the middle of the base.
Compared with the prior art, the utility model discloses following beneficial effect has:
(1): the utility model is provided with the tray rack, the balance test tube table and the fixing clamp, so that when the tray rack and the balance test tube table are welded and fixed, the test tube can be inserted into the test tube groove on the surface of the balance test tube table, after the test tube is erected, the solution in the test tube can not stick to the gap between the wall of the test tube and the opening of the test tube, so that the solution loss is reduced, the solution solute proportion accuracy is improved, when the balance test tube table and the tray frame are clamped and fixed through the fixing clamp in another mode, the tray on the surface of the tray frame is disassembled, so that the balance test tube table can be directly clamped and connected on the tray frame through the fixing clamp, can exchange the use with the tray, two kinds of fixed modes can all fix the test tube in the test tube groove on balance test tube platform surface, treat that the test tube is stable to stand at both ends balance test tube platform, can last to add liquid to balance in the test tube, use comparatively simple and conveniently.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is the overall structure diagram of the welded balance test tube table of the present invention.
Fig. 3 is the overall structure schematic diagram of the detachable balance test tube table of the present invention.
In the figure: 1. a base; 2. a scale; 3. a cursor; 4. a balance nut; 5. a tray rack; 6. a balance test tube table; 7. an index plate; 8. a pointer; 9. a knife edge; 10. a cross beam; 11. a test tube groove; 12. a fixing clip; 13. a fulcrum shaft.
Detailed Description
Technical means for realizing the utility model; authoring features; the purpose and function are easily understood and appreciated, and the present invention will be further described with reference to the following detailed description.
As shown in fig. 1-3, a balance convenient to balance before test tube centrifugation, includes base 1, base 1's top surface middle part fixedly connected with fulcrum axle 13, the top fixedly connected with graduated disk 7 of fulcrum axle 13, the middle part of fulcrum axle 13 is connected with crossbeam 10 through edge of a knife 9 rotation, the middle part joint of crossbeam 10 has pointer 8, the both ends top fixedly connected with tray frame 5 of crossbeam 10, the top surface of tray frame 5 is provided with balance test-tube platform 6, the surperficial one side joint of crossbeam 10 has scale 2, the one end sliding connection of scale 2 has vernier 3, the both ends of crossbeam 10 are provided with balance nut 4, balance test-tube platform 6 is about fulcrum axle 13 symmetric distribution.
The balance test tube table 6 is of a cylindrical table-shaped structure, and a test tube groove 11 is formed in the surface of the balance test tube table 6.
The bottom end of the balance test tube table 6 is clamped with the tray frame 5 through the fixing clamp 12, and the balance test tube table 6 is of a detachable structure.
Wherein the balance test tube table 6 is welded with the tray frame 5.
The test tube grooves 11 are arranged in a plurality, the specification of the test tube grooves 11 is 1-2ml, 5ml, 10ml or 50ml, and the top end of each test tube groove 11 is open and the bottom end is closed.
Wherein, tray frame 5 is cylindric structure, the tray on tray frame 5 surface is detachable construction, conveniently through examining tray frame 5 of dismantlement for can exchange the use with balance test tube platform 6.
The fulcrum shaft 13 is of a cylindrical rod-shaped structure, and the fulcrum shaft 13 is arranged in the middle of the base 1.
It should be noted that, in the use process, firstly, when the test tube platform 6 and the tray rack 5 are welded and fixed, the tray racks 5 at both ends are balanced by the balance nut 4, so that the pointer 8 is aligned with the central position of the dividing plate 7, the test tubes to be balanced are respectively inserted into the test tube slots 11 on the surfaces of the test tube platforms 6 at both ends, the test tubes are in a vertical state, therefore, the cursor 3 can move on the scale 2, the pointer 8 swings left and right on the dividing plate 7, the experimenter can find the weights of the test tubes at both ends by the positions of the cursor 3 on the scale 2 and the positions of the pointer 8 on the dividing plate 7, at this time, liquid is gradually added to the test tubes on the test tube platform 6 with lighter weight at one end to balance the test tube platforms 6 at both ends, the test tubes can be conveniently taken down after balancing, when test tube platform 6 passes through fixation clamp 12 and tray frame 5 and is fixed for the joint, can conveniently be with the tray convenient to detach on tray frame 5 surface, can exchange the use with the tray through test tube platform 6 of balance.
The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (7)
1. The utility model provides a balance convenient to balance is weighed before test tube centrifugation, includes base (1), its characterized in that: the top surface middle part fixedly connected with fulcrum axle (13) of base (1), the top fixedly connected with graduated disk (7) of fulcrum axle (13), the middle part of fulcrum axle (13) is rotated through edge of a knife (9) and is connected with crossbeam (10), the middle part joint of crossbeam (10) has pointer (8), the both ends top fixedly connected with tray frame (5) of crossbeam (10), the top surface of tray frame (5) is provided with balance test tube platform (6), the surperficial one side joint of crossbeam (10) has scale (2), the one end sliding connection of scale (2) has vernier (3), the both ends of crossbeam (10) are provided with balance nut (4), balance test tube platform (6) are about fulcrum axle (13) symmetric distribution.
2. The balance for facilitating pre-centrifugation weighing balancing of test tubes of claim 1, wherein: the balance test tube table (6) is of a cylindrical table-shaped structure, and a test tube groove (11) is formed in the surface of the balance test tube table (6).
3. A balance for facilitating weighing and balancing of test tubes prior to centrifugation according to claim 2, wherein: the bottom of balance test tube platform (6) is connected with tray rack (5) through fixing clamp (12) in a clamping manner, and balance test tube platform (6) is of a detachable structure.
4. A balance for facilitating weighing and balancing of test tubes prior to centrifugation according to claim 2, wherein: the balance test tube table (6) is welded with the tray frame (5).
5. A balance for facilitating weighing and balancing of test tubes prior to centrifugation according to claim 2, wherein: the test tube groove (11) is provided with a plurality of test tube grooves, the specification of the test tube groove (11) is 1-2ml, 5ml, 10ml or 50ml, and the top end of the test tube groove (11) is open and the bottom end is closed.
6. The balance for facilitating pre-centrifugation weighing balancing of test tubes of claim 1, wherein: the tray frame (5) is of a cylindrical structure, and the tray on the surface of the tray frame (5) is of a detachable structure.
7. The balance for facilitating pre-centrifugation weighing balancing of test tubes of claim 1, wherein: the fulcrum shaft (13) is of a cylindrical rod-shaped structure, and the fulcrum shaft (13) is arranged in the middle of the base (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921406951.3U CN210293391U (en) | 2019-08-28 | 2019-08-28 | Balance convenient to balance is weighed before test tube centrifugation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921406951.3U CN210293391U (en) | 2019-08-28 | 2019-08-28 | Balance convenient to balance is weighed before test tube centrifugation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210293391U true CN210293391U (en) | 2020-04-10 |
Family
ID=70063992
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921406951.3U Expired - Fee Related CN210293391U (en) | 2019-08-28 | 2019-08-28 | Balance convenient to balance is weighed before test tube centrifugation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210293391U (en) |
-
2019
- 2019-08-28 CN CN201921406951.3U patent/CN210293391U/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: 20200410 |