CN2632701Y - Continuous focal-length mechanism of stereomicroscope - Google Patents
Continuous focal-length mechanism of stereomicroscope Download PDFInfo
- Publication number
- CN2632701Y CN2632701Y CN 03234789 CN03234789U CN2632701Y CN 2632701 Y CN2632701 Y CN 2632701Y CN 03234789 CN03234789 CN 03234789 CN 03234789 U CN03234789 U CN 03234789U CN 2632701 Y CN2632701 Y CN 2632701Y
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- CN
- China
- Prior art keywords
- cam
- stereomicroscope
- bracket
- mirror holder
- curve
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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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Abstract
The utility model relates to a stereomicroscope continuous multiple changing mechanism, which is mainly used for continuous changing multiple of the stereomicroscope. The main technique character is that: a cam is positioned on the shell body, whose upper end is fixedly connected with the cone shaped gear and meshed with another cone shaped gear cooperated by the deflector rod, and the middle end is moveably cooperated with the upper bracket and the lower bracket. Two sides of left and right of the cam, the upper bracket is connected with the left and right multiple changing lens bracket, and the lower bracket is connected with the left and right compensation lens bracket. The left and right multiple changing lens bracket and the left and right compensation lens bracket are all moveably connected with the slide rod. The utility model completely overcomes the disadvantage that: the original double cam multiple changing mechanism is of a complex structure, difficult assembling and adjusting as well as high manufacturing cost. The use effect of the whole machine gets corresponding improvement.
Description
One, technical field
The utility model belongs to a kind of physical construction, is mainly used in the continuous zoom mechanism as stereomicroscope, also can be used as the usefulness of the similar instrument with continuous variation function.
Two, background technology
Existing continuous zoom mechanism, analyse and observe as the main mechanical-optical setup synoptic diagram 1 of stereomicroscope, its A-A shown in Figure 2, structure by: driving lever 7, cone gear 8, cone gear 9, gear 10, the fixing group 1 in back, gear 2, cam 3, become times curve 4, guide pin 5, compensated curve 6, lens barrel 11 etc. and form.Its principle of work: mainly overlap independently cam mechanism, realize the adjusting of two zooming system light paths of stereomicroscope respectively by two.When rotating lever 7, drive cone gear 8, cone gear 9 motions, cone gear 9 tightens up with gear 10 and is connected, two gears rotate simultaneously, two gears 2 rotated about gear 10 drove, two offset cams 3 rotated about gear 2 drove, about change times curve 4 and compensated curve 6 on two offset cams 3 drive guide pin 5 motions respectively, because guide pin 5 is limited by the straight guide groove of relative fixed lens barrel 11, guide pin 5 is fixedly connected on again on the shell of interior change times mirror group of lens barrel and compensating glass group simultaneously, the final cam curve of realizing drives guide pin, two became times mirror group about guide pin directly drove, the compensating glass group is made rectilinear motion clocklike along optical axis direction, promptly realize the continuous amplification of stereomicroscope, dwindle observation.
This kind double cam drives enlarger, can satisfy the needs of amplification substantially, but still exist complex structure in the reality, needs two cover cam gears and supporting with it whole transmissions zero, parts, and the volume that seems is big, Heavy Weight.Assembling, correction aspect difficulty is big, and the driving of two cams is passed to two and become doubly group, the motion of compensation group and want synchronously about requirement, use the operation than the masterful technique worker, also wants the long period could debug a tool, inefficiency.See Fig. 3, in the change times curve 4 and compensated curve 6 of cam, the change times curve of 0 ° of-500 ° of expansion is straight lines, and the compensated curve movement locus is the complex curve that certain functional relation is arranged with change times curve, these two curves cause the adjusting of realization continuous zoom that can not be level and smooth in use.
Three, utility model content
Main task of the present utility model is: become the deficiency that times mechanism exists according to existing stereomicroscope double cam, provide a kind of simple in structure, the assembling adjustment is easy, the continuous zoom mechanism of camming movement curve smoothing.To satisfy the needs of stereomicroscope in new period market competition.
Main technical schemes of the present utility model is: cam by Bearing Installation on housing, the upper end tightens up with cone gear and is connected, again with the gearing mesh that cooperates driving lever, middle-end cooperates with upper bracket, lower carriage activity by guide pin and curve, cam the right and left, upper bracket, lower carriage with about become a times mirror holder and be connected, with about compensate mirror holder and be connected, about become times mirror holder, about the compensation mirror holder cooperate with the slide bar activity, slide bar is installed on the housing.
The utility model passes through probationary certificate: reach the development purpose fully, satisfy at product under the prerequisite of request for utilization, assembling is proofreaied and correct easily, the efficient height, total is simpler, and volume and weight obviously reduces, owing to become the change of times curve, compensated curve, multiplying power is regulated more level and smooth than original, and corresponding manufacturing cost also decreases.
Four, description of drawings
Below in conjunction with accompanying drawing embodiment of the present utility model is described in further detail.
Fig. 4 is an assembly structure figure of the present utility model.
Fig. 5 is the vertical view of Fig. 4.
Fig. 6, the B-B that is Fig. 5 is to cut-open view.
Fig. 7 is a cam front view of the present utility model.
Fig. 8 is 0 °-720 ° the curve stretch-out view of Fig. 7.
Five, embodiment
With reference to Fig. 4,5,6,7,8, the utility model by driving lever 7, cam 12, dial nail 13, a left side become times mirror holder 14, right become times mirror holder 22, left side compensation mirror holder 15, right compensation mirror holder 20, lower carriage 16, slide bar 17, about before fixing group 18, guide pin 19, torsion spring 21, upper bracket 23, housing 24, cone gear 8, about the fixing group 1 in back, bearing 25, become times curve 26, compensated curve 27 etc. and form.
With reference to Fig. 4,5,6, concrete structure of the present utility model: a cam 12, by bearing, be installed on the housing 24, the upper end tightens up with bevel gear 9 and is connected, and is meshed with the cone gear 8 that driving lever cooperates again.Cam 12 middle-ends are by guide pin 19, with upper bracket 23,16 movable cooperations of lower carriage, the right and left of cam 12, upper bracket 23 with about become times mirror holder 14,22 and be connected, lower carriage 16 with about the compensation mirror holder 15,20 be connected, about become times mirror holder 14,22 and about compensation mirror holder 15,20, all cooperate with slide bar 17 activities, slide bar is installed on the housing 24.
With reference to Fig. 7,8, the cam of the utility model design becomes times curve 26, compensated curve 27, mainly be in order to make in the whole change times process, the moment relative equilibrium of rotating lever, the comprehensive torque fluctuations that becomes times curve and compensated curve is little and as much as possible little, so that it is level and smooth to rotate handwheel when reaching use, observe comfortable.Change times curve 26 and compensated curve 27 are practical operation curve stretch-out views of 0 °-720 °.Obviously than existing curve smoothing, equilibrium.The detailed calculated method of cam curve slightly.
Become times mirror holder 14, the right times mirror holder 22 that becomes with reference to Fig. 4, a left side, become a times mirror group and tighten up and be connected respectively with about stereomicroscope, left side compensation mirror holder 15, the right side compensate mirror holder 20, tighten up with the left and right sides compensating glass group of stereomicroscope respectively to be connected, and annexation repeats no more in detail.
With reference to Fig. 4, principle of work of the present utility model: rotation driving lever 7, by cone gear 8,9, drive cam 12 rotations by 2: 1 ratio of gear, moving guide pin 19 motions of the change of cam 12 times curve and compensated curve troughed belt, guide pin drives upper bracket 23 and lower carriage 16, do clocklike to move up and down along cam 12, on, lower carriage drives the left times mirror holder 14 that becomes again by dialling nail 13, the right times mirror holder 22 that becomes, left side compensation mirror holder 15, right compensation mirror holder 20, along slide bar 17 moving linearly clocklike up and down, thereby become times mirror group about having realized, left and right sides compensating glass group is clocklike moved, and has realized that promptly stereomicroscope amplifies continuously, the observation of dwindling.
Said structure is a basic technical scheme of the present utility model, also is best technical scheme.
Claims (2)
1, a kind of stereomicroscope continuous zoom mechanism, contain driving lever (7), cone gear (8), cone gear (9), it is characterized in that: its concrete structure, a cam (12) by Bearing Installation on housing (24), the upper end tightens up with cone gear (9) and is connected, be meshed with the cone gear (8) that driving lever (7) cooperates again, the middle-end of cam (12) is by guide pin (19), with upper bracket (23), lower carriage (16) is movable to be cooperated, the right and left of cam (12), upper bracket (23) with about become times mirror holder (14), (22) connect, lower carriage (16) with about compensate mirror holder (15), (20) connect, about become times mirror holder (14), (22) and about compensate mirror holder (15), (20), all cooperate with slide bar (17) is movable, slide bar is installed on the housing (24).
2, continuous zoom according to claim 1 mechanism is characterized in that: cam (12) adopts and becomes times curve (26), adopts compensated curve (27).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03234789 CN2632701Y (en) | 2003-06-04 | 2003-06-04 | Continuous focal-length mechanism of stereomicroscope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03234789 CN2632701Y (en) | 2003-06-04 | 2003-06-04 | Continuous focal-length mechanism of stereomicroscope |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2632701Y true CN2632701Y (en) | 2004-08-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03234789 Expired - Fee Related CN2632701Y (en) | 2003-06-04 | 2003-06-04 | Continuous focal-length mechanism of stereomicroscope |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2632701Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109839733A (en) * | 2019-03-28 | 2019-06-04 | 上海美沃精密仪器股份有限公司 | A kind of surgical operation microscope |
-
2003
- 2003-06-04 CN CN 03234789 patent/CN2632701Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109839733A (en) * | 2019-03-28 | 2019-06-04 | 上海美沃精密仪器股份有限公司 | A kind of surgical operation microscope |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |