CN201380081Y - Hot cover elevation controlling mechanism for thermal cycler - Google Patents
Hot cover elevation controlling mechanism for thermal cycler Download PDFInfo
- Publication number
- CN201380081Y CN201380081Y CN200920096326U CN200920096326U CN201380081Y CN 201380081 Y CN201380081 Y CN 201380081Y CN 200920096326 U CN200920096326 U CN 200920096326U CN 200920096326 U CN200920096326 U CN 200920096326U CN 201380081 Y CN201380081 Y CN 201380081Y
- Authority
- CN
- China
- Prior art keywords
- thermal cycler
- turning cylinder
- lifting arm
- heat lid
- millimeter
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to a hot cover elevation controlling mechanism for a thermal cycler, which is characterized by comprising a hot cover and an elevating arm. One end of the hot cover is fixed onto a thermal cycler shell while the other end is fixedly connected to the elevating arm at the tail end of the hot cover, the elevating arm and a rotary shaft in sleeved installation are closely and engagingly connected with each other through screws, and the rotary shaft and a knob are fixedly connected to the thermal cycler shell. The elevation controlling mechanism enables the hot cover of the thermal cycler to stay at an arbitrary angle after being opened, changes hot cover opening modes of all former types of thermal cyclers, and is capable of enabling an operator to place and lift a testing tube more conveniently and safely and realizing simple operation and reliable structure.
Description
Technical field
The utility model relates to the parts of thermal cycler, particularly a kind of thermal cycler heat lid lifting control mechanism.
Background technology
In same thermal cycler, to do experiment with the test tube of a plurality of different sizes, differing heights, the heat lid must contact with the top of test tube just to offer the enough heat energy of test tube during test, prevent the evaporation of reaction in test tube liquid, the guarantee test effect is true and reliable, so must make the hot lid can lifting, and can be as required in arbitrarily angled stop.Traditional instrument heat lid relies on the lifting of torsion spring elastic force principle, the hot lid of instrument can only switch and can not be in arbitrarily angled stop, forms easily that the folding of heat lid is unreliable, heat covers that to rise the decline extent control different and influence problems such as experiment effect instability, inertia is big, the life-span is short.
The utility model content
In order to overcome the above-mentioned defective that exists in the prior art, the utility model provides a kind of thermal cycler heat lid lifting control mechanism, can closely contact with the test tube of different model to guarantee the heat lid, reaches precise control, purpose simple to operate.
Thermal cycler heat lid lifting control mechanism, it is characterized in that comprise that an end is fixed on the heat lid on the thermal cycler housing, an end is fixed in the lifting arm on the heat lid tail end, lifting arm is with the turning cylinder suit and closely cooperate and be screwed onto, and turning cylinder and knob are fixed in the thermal cycler housing.
Compared with prior art, rest on after the utility model can make the heat lid of thermal cycler open arbitrarily on the angle position, changed the heat lid opening ways of any a thermal cycler in the past, it can make the operator lay and extract the more convenient and safety of test tube.Simple to operate, reliable in structure.
Description of drawings
Fig. 1 covers the structural representation of the state of liter for the utility model heat.Wherein: 1 thermal cycler housing, 2 knobs, 3 turning cylinders, 4 lifting arms, 5 heat lids, 11 stopper slots.
Fig. 2 is the structural representation of the utility model heat lid decline state.Wherein: 1 thermal cycler housing, 2 knobs, 3 turning cylinders, 4 lifting arms, 5 heat lids, 11 stopper slots.
Fig. 3 is the structural representation of the utility model tumbler.Wherein: 3 turning cylinders, 31 external screw threads.
Fig. 4 is the structural representation of the utility model lifters.Wherein: 4 lifting arms, 41 thread grooves.
The specific embodiment
With reference to the accompanying drawings, the utility model is described further:
As Fig. 1, shown in Figure 2: thermal cycler heat lid lifting control mechanism, comprise that an end covers 5 with the heat that screw is fixed on the thermal cycler housing 1, one end is fixed in the lifting arm 4 on heat lid 5 tail ends, lifting arm 4 is with turning cylinder 3 suits and closely cooperate and be screwed onto, lifting arm 4 is fixed on the heat lid 5, turning cylinder 3 respectively is connected by screw with knob 2 and is fixed in thermal cycler housing 1, the head of turning cylinder 3 snaps in place, knob 2 bottoms, and closely link together with screw, thermal cycler housing 1 is provided with stopper slot 11, the lower edge of knob 2 is provided with the extension limit, and the extension checkpost can not move up and down knob in stopper slot 11.Lifters descends when turn-knob 2 turns right, and heat lid 5 is thereupon to decline, and lifters rises when turn-knob 2 turns round left, and heat lid 5 is thereupon to rising.
Turning cylinder is connected on the thermal cycler housing 1 by axial limiting, makes it to rotate and can not lifting; Lifting arm is because an end is fixed in heat and covers and can not rotate, and after turning knob drove the turning cylinder rotation, because the relation of being spirally connected between lifting arm and the turning cylinder, lifting arm just can be done the oscilaltion campaign; And the rotational angle of knob and the ratio that lifting distance becomes to determine are convenient to the position that accurately control heat is covered, and guarantee that the heat lid can closely contact with the test tube of different model, and be simple to operate.
As to the improving and replenishing of technique scheme, the utility model is further taked any combination of following technical measures or these technical measures:
Described lifting arm is placed in outside the turning cylinder, and turning cylinder is provided with external screw thread, and the lifting arm inwall is provided with corresponding thread groove.Perhaps lifting arm is provided with external screw thread, and the turning cylinder inwall is provided with corresponding thread groove, and rotary axle box is outside lifting arm.Dual mode can be selected as required, makes the mutual socket of turning cylinder and lifting arm and is spirally connected, and cooperates closely reliable.
Externally threaded cross section on described lifting arm or the turning cylinder is trapezoidal, and the bottom of trapezoid cross section is the 3-4 millimeter, and the top is the 2-3 millimeter, and height is the 2-3 millimeter, and such screw thread has force-bearing property preferably, and is easy to assembly.
In the described lifting arm or turning cylinder that connects together, being positioned at inboard part inside diameter is the 30-33 millimeter, the lead angle of external screw thread helix is the 19-22 degree, pitch is the 40-42 millimeter, can guarantee that like this range is that the distance that minimum test tube leaves heat lid initial point is the 20-22 millimeter, meets instructions for use.
The utility model is by linking together closely with nut between a turn-knob 2 and the turning cylinder 3, and the moment that applies to lifting arm 4 when turn-knob 2 rotates is greater than the frictional force that produces.Same reason, when the moment that this power is produced greater than the deadweight of heat lid, this heat lid just can not move so, unless extra externally applied forces is arranged.This structure not only can be applied on the thermal cycler, according to this design principle, has the form of uncapping of a lot of products all can use this frame for movement.
See Fig. 3, lifting arm 4 is placed in outside the turning cylinder 3 in this example, and turning cylinder 3 is provided with external screw thread 31, and lifters 4 inwalls are provided with corresponding thread groove 41 (see figure 4)s.
As required, also turning cylinder 3 can be placed in outside the lifting arm 4, respective threads is provided with the also corresponding conversion in position.When needs changed the height of heat lid, the rotation knob also drove turning cylinder, because turning cylinder is limited in the plane and takes exercises, lifting arm just can order about the heat lid and move up and down, thereby adapted to the test tube of differing heights.
Claims (6)
1, thermal cycler heat lid lifting control mechanism, it is characterized in that comprise that an end is fixed on the heat lid on the thermal cycler housing, an end is fixed in the lifting arm on the heat lid tail end, lifting arm is with the turning cylinder suit and closely cooperate and be screwed onto, and turning cylinder and knob are fixed in the thermal cycler housing.
2, thermal cycler heat lid lifting control mechanism according to claim 1 is characterized in that described thermal cycler housing is provided with stopper slot, and the lower edge of knob is provided with the extension limit, and the extension checkpost is in stopper slot.
3, thermal cycler heat lid lifting control mechanism according to claim 1 is characterized in that described lifting arm is placed in outside the turning cylinder, and turning cylinder is provided with external screw thread, and the lifting arm inwall is provided with corresponding thread groove.
4, thermal cycler heat lid lifting control mechanism according to claim 1 is characterized in that described lifting arm is provided with external screw thread, and the turning cylinder inwall is provided with corresponding thread groove, and rotary axle box is outside lifting arm.
5, thermal cycler heat lid lifting control mechanism according to claim 1, it is characterized in that in the described lifting arm or turning cylinder that connects together, being positioned at inboard part inside diameter is the 30-33 millimeter, the lead angle of external screw thread helix is the 19-22 degree, and pitch is the 40-42 millimeter.
6, according to claim 3 or 4 described thermal cycler heat lid lifting control mechanisms, it is characterized in that the externally threaded cross section on described lifting arm or the turning cylinder is trapezoidal, the bottom of trapezoid cross section is the 3-4 millimeter, and the top is the 2-3 millimeter, and height is the 2-3 millimeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920096326U CN201380081Y (en) | 2009-04-16 | 2009-04-16 | Hot cover elevation controlling mechanism for thermal cycler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920096326U CN201380081Y (en) | 2009-04-16 | 2009-04-16 | Hot cover elevation controlling mechanism for thermal cycler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201380081Y true CN201380081Y (en) | 2010-01-13 |
Family
ID=41523554
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920096326U Expired - Fee Related CN201380081Y (en) | 2009-04-16 | 2009-04-16 | Hot cover elevation controlling mechanism for thermal cycler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201380081Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107866289A (en) * | 2016-09-23 | 2018-04-03 | 广州康昕瑞基因健康科技有限公司 | Metal bath heat lid |
| WO2022257802A1 (en) * | 2021-06-09 | 2022-12-15 | 圣湘生物科技股份有限公司 | Cap heating device and nucleic acid detection apparatus |
-
2009
- 2009-04-16 CN CN200920096326U patent/CN201380081Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107866289A (en) * | 2016-09-23 | 2018-04-03 | 广州康昕瑞基因健康科技有限公司 | Metal bath heat lid |
| WO2022257802A1 (en) * | 2021-06-09 | 2022-12-15 | 圣湘生物科技股份有限公司 | Cap heating device and nucleic acid detection apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100113 Termination date: 20110416 |