CN112051663A - Back single hand wheel focusing transmission structure for microscope and assembling method thereof - Google Patents
Back single hand wheel focusing transmission structure for microscope and assembling method thereof Download PDFInfo
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- CN112051663A CN112051663A CN202011067791.1A CN202011067791A CN112051663A CN 112051663 A CN112051663 A CN 112051663A CN 202011067791 A CN202011067791 A CN 202011067791A CN 112051663 A CN112051663 A CN 112051663A
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- 238000000034 method Methods 0.000 title claims description 11
- 238000003780 insertion Methods 0.000 claims abstract description 9
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- 238000010079 rubber tapping Methods 0.000 claims description 6
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B21/00—Microscopes
- G02B21/24—Base structure
- G02B21/241—Devices for focusing
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B21/00—Microscopes
- G02B21/24—Base structure
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B21/00—Microscopes
- G02B21/24—Base structure
- G02B21/26—Stages; Adjusting means therefor
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Abstract
A back single hand wheel focusing transmission structure for a microscope belongs to the technical field of microscopes and comprises a base, a bent arm, a platform, a focusing knob, a platform bracket, a lifting seat plate, a platform bracket seat, a rack bar, a helical rack and a rack bar shaft sleeve; the platform bracket comprises a front part and a rear part, the front part is a platform seat arranged in the horizontal direction, and the rear part is an insertion groove and a rack clamping groove arranged in the vertical direction; the platform bracket seat is arranged at the rear side of the bent arm, the two sides of the platform bracket seat are provided with fixed connecting strips, a bracket penetrating hollow seat is arranged between the fixed connecting strips at the two sides, and the rear part of the platform bracket penetrates through the bracket penetrating hollow seat from the front direction to the rear direction and is inserted into a bracket through hole; the fixed connecting strip is connected with the lifting seat plate through a screw, and the bracket penetrates through the hollow crotch and is arranged at the rear side of the bracket through hole; the upper end of the platform bracket seat is provided with an inserting connection part which is connected with the inserting slot of the platform bracket seat in an inserting way; the rack rod is obliquely arranged from back to top to front and downwards, and the helical rack is arranged in the rack clamping groove; the invention has the beneficial effects that: is suitable for various microscopes and is convenient to use.
Description
Technical Field
The invention relates to a focusing transmission structure for a microscope and an assembling method thereof, in particular to a back single hand wheel focusing transmission structure for a microscope and an assembling method thereof, belonging to the technical field of microscopes.
Background
The focusing mechanism structure of the traditional microscope is as follows: the side focusing device, a rack bar, two focusing knobs are respectively arranged at two ends of the rack bar on two sides of the curved wall, the gear is arranged in the middle of the rack bar and meshed with the rack, and the focusing knobs on two sides are rotated to drive the platform to be focused up and down. However, the conventional focusing mechanism of the microscope cannot be installed and used in some microscopes with special structures; in the using process, the two arms of the operator are contracted in front of the chest, the two arms are not unfolded, the time is long, the arms and the shoulders and elbows are easy to fatigue, even the local pain is caused, and the health is not facilitated.
Disclosure of Invention
The invention aims to overcome the defects of inconvenience in installation and use in the prior art, and provides a back single-hand-wheel focusing transmission structure for a microscope, which can achieve the purposes of being suitable for various microscopes and being convenient to use.
In order to achieve the aim, the invention adopts the technical scheme that: a back single hand wheel focusing transmission structure for a microscope comprises a base, a bent arm, a platform and a focusing knob, wherein the bent arm is fixedly arranged above the back of the base;
the lifting seat plate is arranged on the platform bracket seat; the platform is fixedly arranged on a platform seat of the platform bracket;
the platform bracket comprises a front part and a rear part, the front part is a platform seat arranged in the horizontal direction, and the rear part is an insertion groove and a rack clamping groove arranged in the vertical direction;
the middle part of the lifting seat plate is a plane plate, the upper part and the lower part of the lifting seat plate are cambered plates bent forwards, and a bracket through hole with a rectangular hole is formed in the middle part of the plane plate; the lifting seat plate is arranged at the rear side of the platform and the front side of the middle part of the bent arm, the plane plate part is arranged in the vertical direction, the front end part of the cambered plate at the lower part of the lifting seat plate is inserted at the rear end of the upper plane of the base, and the front end part of the cambered plate at the upper part of the lifting seat plate is inserted at the rear end of the upper part of the bent arm;
the platform bracket seat is arranged at the rear side of the bent arm, the two sides of the platform bracket seat are provided with fixed connecting strips, a bracket penetrating hollow seat is arranged between the fixed connecting strips at the two sides, and the rear part of the platform bracket penetrates through the bracket penetrating hollow seat from the front direction to the rear direction and is inserted into a bracket through hole, so that the rack clamping groove is arranged in the vertical direction; the fixed connecting strip is connected with the lifting seat plate through a screw, and the bracket penetrates through the hollow crotch and is arranged on the rear side of the bracket through hole; the upper end of the platform bracket seat is provided with a plug-in connecting part which is in plug-in connection with the platform bracket seat slot;
the toothed bar comprises an upper segment, a middle cylindrical part and a lower toothed part, and the toothed part is provided with longitudinal toothed lines; the toothed bar is obliquely arranged from back to top to front and downwards, and the angle between the central line of the toothed bar and the horizontal direction is 10-18 degrees; the helical rack is arranged in the rack clamping groove and is in a vertical direction; the angle between the rack of the helical rack and the horizontal direction is 10-18 degrees, and the insection of the rack bar is meshed with the rack of the helical rack;
the main body of the gear rack shaft sleeve is a cylindrical body and is provided with a central hole, a pair of side lugs are symmetrically arranged on two sides of the main body, side lug holes are formed in the side lugs, the two side lug holes are fixedly connected with the upright column on one side of the bent wall through two self-tapping screws, and the gear rack teeth are ensured to be correctly meshed with the gear rack insection; the size of the central hole is matched with that of the cylindrical part in the middle of the toothed bar, and the cylindrical part in the middle of the toothed bar is arranged in the central hole of the cylindrical body in a penetrating way and is in clearance fit with each other; the pair of side ears are fixedly arranged in the upper and lower directions;
a central column is arranged in the middle of the focusing knob, a round notch hole is formed in the central column, the size of the round notch hole is matched with that of a round notch part on the upper part of the rack bar, and the round notch hole of the focusing knob is sleeved in the round notch part on the upper part of the rack bar and is in tight fit with each other;
the operation process is as follows: the focusing knob is screwed in the positive and negative directions, so that the rack bar rotates clockwise or anticlockwise, the rack bar drives the helical rack to move upwards or downwards, the helical rack drives the rear part of the platform bracket to move upwards or downwards in a bracket through hole of the lifting seat plate, and the platform above the front part of the bracket is lifted upwards or downwards along with the bracket to perform focusing.
The front end of the platform base is provided with an arc-shaped notch, the front end of the platform is provided with an arc-shaped lower raised head, and the arc-shaped lower raised head is matched with the arc-shaped notch in shape and mutually meshed; the middle part both sides and the rear end of platform seat respectively are provided with 1 screw hole, and the platform passes through screw and the fixed setting of screw hole on the platform seat.
Two adjusting screws are arranged on the reverse side of the rack clamping groove and used for adjusting the meshing degree of the rack toothed line and the rack toothed line.
The angle between the central line of the toothed bar and the horizontal direction is 14 degrees; the angle between the rack of the helical rack and the horizontal direction is 14 degrees.
The upper end and the lower end of the lifting seat plate are respectively provided with 1 inward groove, the inward groove at the front end part of the cambered plate at the lower part of the lifting seat plate is inserted at the rear end of the upper plane of the base, and the inward groove at the front end part of the cambered plate at the upper part of the lifting seat plate is inserted at the rear end of the upper part of the bent arm; one side of the lifting seat plate is longitudinally provided with a fixed connecting plate, the fixed connecting plate is provided with a screw hole, and the fixed connecting plate is fixedly connected with one side of the bent arm through a screw and the screw hole.
The rear part of the bent arm is provided with a knob mounting hole, and the front lower end of the central column of the focusing knob and the rear upper end of the toothed bar shaft sleeve are mutually tightly propped in the knob mounting hole.
The fixed connecting strips on the two sides of the platform bracket seat are respectively provided with 2 screw holes, and the fixed connecting strips are connected with the lifting seat plate through screws and the screw holes so that the platform bracket is fixedly connected with the lifting seat plate; the upper end of the platform bracket seat is provided with an inserting connection part, the inner side surface of the inserting connection part is provided with an inserting convex head, and the inserting convex head is connected with the inserting groove of the platform bracket in an inserting manner.
The upper portion of skewed tooth rack is provided with the constant head tank, the upper portion of rack draw-in groove is provided with the locating piece, locating piece size and constant head tank phase-match, the locating piece is inlayed in the constant head tank, each other is tight fit.
The surface of the focusing knob is provided with handprints, so that the focusing knob has a decorative effect and is convenient to touch and rotate.
An assembling method of a back single-hand wheel focusing transmission structure for a microscope comprises the following assembling steps:
(1) fixedly mounting the platform above the front part of the platform bracket by using screws; the helical rack is clamped into a rack clamping groove at the rear part of the platform bracket, the platform bracket penetrates through the lifting seat plate and then is connected with the platform bracket seat clamping groove, and the platform bracket seat and the lifting seat plate are fixed by four screws to form a component A;
(2) the lifting seat plate is arranged between the rear end of the base and the front lower part of the upper part of the bent arm;
the toothed bar is arranged in the toothed bar shaft sleeve from the front direction to the back direction, the round notch hole of the focusing knob is sleeved in the round notch part on the upper part of the toothed bar, the front end of the central column of the focusing knob is abutted against the back end part of the toothed bar shaft sleeve, and the round notch part and the round notch hole are mutually in tight fit to form a component B;
(3) the component B is arranged between the rear end of the base and the front lower part of the upper part of the bent arm, and a fixed connecting plate at one side of the lifting seat plate is fixedly connected with one side of the bent arm by using a screw;
(4) engaging the toothed part of the toothed bar on the component B with the helical toothed rack, and fixedly connecting the two side ear holes with the upright column on one side of the curved wall by using two self-tapping screws;
(5) the focusing knob is twisted in the positive and negative directions and debugged, when the focusing knob is twisted, all parts are matched and fastened, the focusing knob is easily twisted, the toothed bar is comfortable to transmit with the helical rack, the platform is flexibly lifted upwards or downwards, and the two adjusting screws adjust the meshing degree of the toothed bar and the helical rack.
Compared with the prior art, the invention has the beneficial effects that: the novel adjusting mechanism realizes a back single-hand wheel adjusting mode by utilizing the meshing characteristic of the helical rack and the rack bar, and has unique structure, novel modeling and comfortable adjusting hand feeling. Various types of microscopes can be used. In the using process, the two arms of the operator can be extended forwards, the physiological characteristics of the two arms of the human body are met, the arms and the shoulders and elbows cannot be tired after long-time operation, the phenomenon of ache and discomfort is avoided, and the health of the operator is facilitated.
Drawings
FIG. 1 is a schematic diagram of: the invention has a partial sectional front view;
FIG. 2 is a diagram of: the invention is a perspective view in the back viewing direction;
FIG. 3 is a diagram of: enlarged view of part A of FIG. 1;
FIG. 4 is a diagram of: enlarged view of part B of FIG. 2;
FIG. 5 is a diagram of: enlarged front view of the platform bracket;
FIG. 6 is a diagram of: a three-dimensional enlarged view of the platform bracket;
FIG. 7 is a diagram of: enlarged view of the main view of the lifting seat plate;
FIG. 8 is a diagram of: left enlarged view of the lifting seat plate;
FIG. 9 is a schematic diagram of: enlarged front view of the platform bracket seat;
FIG. 10 is a schematic diagram of: enlarged view of the platform bracket seat;
FIG. 11 is a graph of: a front view enlarged view of the toothed bar;
FIG. 12 is a diagram of: the gear rack is enlarged from top view;
FIG. 13 is a graph of: a front enlarged view of the helical rack;
FIG. 14 is a graph of: a left-view enlarged view of the helical rack;
FIG. 15 is a diagram of: a front view enlarged view of the toothed bar shaft sleeve;
FIG. 16 is a graph of: a three-dimensional enlarged view of the gear rack shaft sleeve;
FIG. 17 is a graph of: the helical rack, the rack bar shaft sleeve and the focusing knob are combined to form an enlarged sectional view;
FIG. 18 is a graph of: a front view enlarged view of the focusing knob;
FIG. 19 is a graph of: a magnified cross-sectional view of the focusing knob;
FIG. 20 is a graph of: and the rear view of the focusing knob is enlarged.
Description of reference numerals: the device comprises a base 1, a bent arm 2, a platform 3, an arc-shaped lower protruding head 301, a focusing knob 4, a central column 401, a circular notch hole 402, a platform bracket 5, a front part 501, a rear part 502, an inserting groove 503, a rack clamping groove 504, a platform seat 505, an arc-shaped notch 506, a lifting seat plate 6, a bracket through hole 601, a plane plate 602, an arc-shaped panel 603, a platform bracket seat 7, a fixed connecting strip 701, an inserting connecting part 702, an inserting protruding head 703, a toothed bar 8, a circular notch 801, a cylindrical part 802, a toothed line part 803, an oblique toothed rack 9, a positioning groove 901, a toothed bar shaft sleeve 10, a central hole 1001, a side lug 1002, a fixed connecting plate 11 and an adjusting screw 12.
Detailed Description
The invention is further described with reference to the following figures and specific examples, which are not intended to be limiting.
As shown in fig. 1 to 20, a back single-handwheel focusing transmission structure for a microscope, as shown in fig. 1 and 2, comprises a base 1, a curved arm 2, a platform 3 and a focusing knob 4, wherein the curved arm 2 is fixedly arranged above the back of the base 1, the platform 3 is arranged above the base 1, the platform 3 can be lifted up and down along the curved arm 2, the back side of the platform 3 is movably connected with the curved arm 2, and the lifting of the platform 3 is controlled by the focusing knob 4;
as shown in fig. 1 and 2, the lifting seat plate comprises a platform bracket 5, a lifting seat plate 6, a platform bracket seat 7, a rack bar 8, a helical rack 9 and a rack bar shaft sleeve 10; the platform 3 is fixedly arranged on a platform seat 505 of the platform bracket 5;
as shown in fig. 5 and 6, the platform bracket 5 includes a front portion 501 and a rear portion 502, the front portion 501 is a platform seat 505 arranged in a horizontal direction, and the rear portion 502 is an insertion groove 503 and a rack catch 504 arranged in a vertical direction;
as shown in fig. 3, 7 and 8, the middle part of the lifting seat plate 6 is a flat plate 602, the upper and lower parts of the lifting seat plate are cambered plates 603 bent in the forward direction, and a bracket through hole 601 with a rectangular hole is formed in the middle part of the flat plate 602; the lifting seat plate 6 is arranged at the rear side of the platform 3 and the front side of the middle part of the bent arm 2, the plane plate 602 is arranged in the vertical direction, the front end part of the cambered plate 603 at the lower part of the lifting seat plate 6 is inserted at the rear end of the upper plane of the base 1, and the front end part of the cambered plate 603 at the upper part of the lifting seat plate 6 is inserted at the rear end of the upper part of the bent arm 2;
as shown in fig. 4, 9 and 10, the platform bracket holder 7 is disposed at the rear side of the curved boom 2, the fixed connection strips 701 are disposed at both sides of the platform bracket holder 7, a bracket penetration crotch is disposed between the fixed connection strips 701 at both sides, and the rear portion 502 of the platform bracket 5 is inserted into the bracket penetration crotch and inserted into the bracket through hole 601 from the front direction to the rear direction, so that the rack catch 504 is disposed in the vertical direction; the fixed connecting strip 701 is connected with the lifting seat plate 6 through a screw, and the bracket penetrates through the crotch and is arranged at the rear side of the bracket through hole 601; the upper end of the platform bracket seat 7 is provided with a plug-in connection part 702, and the plug-in connection part 702 is in plug-in connection with the slot of the platform bracket seat 7;
as shown in fig. 11 to 14 and 17, the rack bar 8 includes an upper segment 801, a middle cylindrical portion 802 and a lower serration portion 803, and the serration portion 803 is provided with a longitudinal serration; the toothed bar 8 is obliquely arranged from back to top to front and from bottom to top, and the angle alpha between the central line of the toothed bar 8 and the horizontal direction is 14 degrees; the helical rack 9 is arranged in the rack clamping groove 504 and is in a vertical direction; the angle beta between the rack of the helical rack 9 and the horizontal direction is 14 degrees and is consistent with the angle alpha, and the insection of the rack bar 8 is meshed with the rack of the helical rack 9;
as shown in fig. 4, 15, 16 and 17, the main body of the rack bar shaft sleeve 10 is a cylindrical body, which has a central hole 1001, a pair of side lugs 1002 are symmetrically arranged on two sides, side lug 1002 holes are arranged in the side lugs 1002, the two side lug 1002 holes are fixedly connected with the upright post on one side of the bent wall by two self-tapping screws, and the teeth of the rack bar 8 are ensured to be correctly meshed with the rack insection; the size of the central hole 1001 is matched with the size of the cylindrical part 802 in the middle of the toothed bar 8, and the cylindrical part 802 in the middle of the toothed bar 8 is arranged in the central hole 1001 of the cylindrical body in a penetrating way and is in clearance fit with each other; the pair of side ears 1002 are fixedly arranged in the upper and lower directions;
as shown in fig. 18 to 20 and fig. 3, a central column 401 is disposed in the middle of the focus knob 4, a circular notch hole 402 is disposed in the central column 401, the size of the circular notch hole 402 matches with the circular notch 801 on the upper portion of the rack 8, and the circular notch hole 402 of the focus knob 4 is sleeved in the circular notch 801 on the upper portion of the rack 8 and is tightly fitted with each other;
as shown in fig. 1 and fig. 2, the operation process is as follows: the focusing knob 4 is screwed in the forward and reverse directions, so that the rack bar 8 rotates clockwise or anticlockwise, the rack bar 8 drives the helical rack 9 to move upwards or downwards, the helical rack 9 drives the rear part 502 of the platform bracket 5 to move upwards or downwards in the bracket through hole 601 of the lifting seat plate 6, and the platform 3 above the front part 501 of the bracket is lifted upwards or downwards along with the bracket to perform focusing.
As shown in fig. 1, 5 and 6, an arc-shaped notch 506 is formed in the front end of the platform base 505, an arc-shaped lower protruding head 301 is formed in the front end of the platform 3, and the arc-shaped lower protruding head 301 and the arc-shaped notch 506 are matched in shape and mutually engaged; the middle part both sides and the rear end of platform seat 505 respectively are provided with 1 screw hole, and platform 3 passes through screw and the fixed setting of screw hole on platform seat 505.
As shown in fig. 4, two adjusting screws 12 are arranged on the reverse side of the rack clamping groove 504 and used for adjusting the meshing degree of the rack gear grains and the rack gear grains of the rack bar 8.
As shown in fig. 3, 7 and 8, the upper and lower ends of the lifting seat plate 6 are respectively provided with 1 inward groove, the inward groove at the front end of the arc panel 603 at the lower part of the lifting seat plate 6 is inserted into the rear end of the upper plane of the base 1, and the inward groove at the front end of the arc panel 603 at the upper part of the lifting seat plate 6 is inserted into the rear end of the upper part (not shown in the figures) of the curved arm 2; the lifting seat plate 6 is characterized in that one side of the lifting seat plate is longitudinally provided with a fixed connecting plate 11, the fixed connecting plate 11 is provided with a screw hole, and the fixed connecting plate 11 is fixedly connected with one side of the bent arm 2 through a screw and the screw hole.
As shown in FIG. 3, a knob mounting hole is formed in a rear portion 502 of the curved arm 2, and a front lower end of a center post 401 of the focus knob 4 and a rear upper end of the rack bushing 10 are tightly pressed against each other in the knob mounting hole.
As shown in fig. 4, 6, 9 and 10, the fixed connection strips 701 on both sides of the platform bracket holder 7 are respectively provided with 2 screw holes, and the fixed connection strips 701 are connected with the lifting seat plate 6 through screws and screw holes, so that the platform bracket 5 is fixedly connected with the lifting seat plate 6; the upper end of the platform bracket holder 7 is provided with an insertion connection part 702, the inner side surface of the insertion connection part 702 is provided with an insertion convex head 703, and the insertion convex head 703 is inserted into and connected with the insertion groove 503 of the platform bracket 5.
As shown in fig. 6 and 14, a positioning groove 901 is formed in the upper portion of the helical rack 9, a positioning block is arranged on the upper portion of the rack clamping groove 504, the size of the positioning block is matched with that of the positioning groove 901, and the positioning blocks are embedded in the positioning groove 901 and are in tight fit with each other.
As shown in fig. 20, the surface of the focusing knob 4 is provided with handprints, which not only has a decorative effect, but also is convenient for touch rotation.
An assembling method of a back single-hand wheel focusing transmission structure for a microscope is disclosed, as shown in fig. 1 to 4, the assembling steps of the back single-hand wheel focusing transmission structure for the microscope are as follows:
(1) fixedly mounting the platform above the front part of the platform bracket by using screws; the helical rack is clamped into a rack clamping groove at the rear part of the platform bracket, the platform bracket penetrates through the lifting seat plate and then is connected with the platform bracket seat clamping groove, and the platform bracket seat and the lifting seat plate are fixed by four screws to form a component A;
(2) the lifting seat plate is arranged between the rear end of the base and the front lower part of the upper part of the bent arm;
the toothed bar is arranged in the toothed bar shaft sleeve from the front direction to the back direction, the round notch hole of the focusing knob is sleeved in the round notch part on the upper part of the toothed bar, the front end of the central column of the focusing knob is abutted against the back end part of the toothed bar shaft sleeve, and the round notch part and the round notch hole are mutually in tight fit to form a component B;
(3) the component B is arranged between the rear end of the base and the front lower part of the upper part of the bent arm, and a fixed connecting plate at one side of the lifting seat plate is fixedly connected with one side of the bent arm by using a screw;
(4) engaging the toothed part of the toothed bar on the component B with the helical toothed rack, and fixedly connecting the two side ear holes with the upright column on one side of the curved wall by using two self-tapping screws;
(5) the focusing knob is twisted in the positive and negative directions and debugged, when the focusing knob is twisted, all parts are matched and fastened, the focusing knob is easily twisted, the toothed bar is comfortable to transmit with the helical rack, the platform is flexibly lifted upwards or downwards, and the two adjusting screws adjust the meshing degree of the toothed bar and the helical rack.
The above-described embodiments are merely preferred embodiments of the present invention, and general changes and substitutions by those skilled in the art within the technical scope of the present invention are included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a back single hand wheel focusing transmission structure for microscope, includes base, curved boom, platform and focusing knob, the curved boom is fixed to be set up in base rear upper place, the platform sets up in the base top, the platform can go up and down along the curved boom, and platform rear side and curved boom swing joint control platform through focusing knob go up and down its characterized in that:
the lifting seat plate is arranged on the platform bracket seat; the platform is fixedly arranged on a platform seat of the platform bracket;
the platform bracket comprises a front part and a rear part, the front part is a platform seat arranged in the horizontal direction, and the rear part is an insertion groove and a rack clamping groove arranged in the vertical direction;
the middle part of the lifting seat plate is a plane plate, the upper part and the lower part of the lifting seat plate are cambered plates bent forwards, and a bracket through hole with a rectangular hole is formed in the middle part of the plane plate; the lifting seat plate is arranged at the rear side of the platform and the front side of the middle part of the bent arm, the plane plate part is arranged in the vertical direction, the front end part of the cambered plate at the lower part of the lifting seat plate is inserted at the rear end of the upper plane of the base, and the front end part of the cambered plate at the upper part of the lifting seat plate is inserted at the rear end of the upper part of the bent arm;
the platform bracket seat is arranged at the rear side of the bent arm, the two sides of the platform bracket seat are provided with fixed connecting strips, a bracket penetrating hollow seat is arranged between the fixed connecting strips at the two sides, and the rear part of the platform bracket penetrates through the bracket penetrating hollow seat from the front direction to the rear direction and is inserted into a bracket through hole, so that the rack clamping groove is arranged in the vertical direction; the fixed connecting strip is connected with the lifting seat plate through a screw, and the bracket penetrates through the hollow crotch and is arranged on the rear side of the bracket through hole; the upper end of the platform bracket seat is provided with a plug-in connecting part which is in plug-in connection with the platform bracket seat slot;
the toothed bar comprises an upper segment, a middle cylindrical part and a lower toothed part, and the toothed part is provided with longitudinal toothed lines; the toothed bar is obliquely arranged from back to top to front and downwards, and the angle between the central line of the toothed bar and the horizontal direction is 10-18 degrees; the helical rack is arranged in the rack clamping groove and is in a vertical direction; the angle between the rack of the helical rack and the horizontal direction is 10-18 degrees, and the insection of the rack bar is meshed with the rack of the helical rack;
the main body of the gear rack shaft sleeve is a cylindrical body and is provided with a central hole, a pair of side lugs are symmetrically arranged on two sides of the main body, side lug holes are formed in the side lugs, the two side lug holes are fixedly connected with the upright column on one side of the bent wall through two self-tapping screws, and the gear rack teeth are ensured to be correctly meshed with the gear rack insection; the size of the central hole is matched with that of the cylindrical part in the middle of the toothed bar, and the cylindrical part in the middle of the toothed bar is arranged in the central hole of the cylindrical body in a penetrating way and is in clearance fit with each other; the pair of side ears are fixedly arranged in the upper and lower directions;
the middle part of the focusing knob is provided with a central column, a round notch hole is arranged in the central column, the size of the round notch hole is matched with the round notch part on the upper part of the rack bar, and the round notch hole of the focusing knob is sleeved in the round notch part on the upper part of the rack bar and is in tight fit with each other.
2. The back single-handwheel focusing transmission structure for the microscope as claimed in claim 1, wherein: the front end of the platform base is provided with an arc-shaped notch, the front end of the platform is provided with an arc-shaped lower raised head, and the arc-shaped lower raised head is matched with the arc-shaped notch in shape and mutually meshed; the middle part both sides and the rear end of platform seat respectively are provided with 1 screw hole, and the platform passes through screw and the fixed setting of screw hole on the platform seat.
3. The back single-handwheel focusing transmission structure for the microscope as claimed in claim 1, wherein: two adjusting screws are arranged on the reverse side of the rack clamping groove and used for adjusting the meshing degree of the rack toothed line and the rack toothed line.
4. The back single-handwheel focusing transmission structure for the microscope as claimed in claim 1, wherein: the angle between the central line of the toothed bar and the horizontal direction is 14 degrees; the angle between the rack of the helical rack and the horizontal direction is 14 degrees.
5. The back single-handwheel focusing transmission structure for the microscope as claimed in claim 1, wherein: the upper end and the lower end of the lifting seat plate are respectively provided with 1 inward groove, the inward groove at the front end part of the cambered plate at the lower part of the lifting seat plate is inserted at the rear end of the upper plane of the base, and the inward groove at the front end part of the cambered plate at the upper part of the lifting seat plate is inserted at the rear end of the upper part of the bent arm; one side of the lifting seat plate is longitudinally provided with a fixed connecting plate, the fixed connecting plate is provided with a screw hole, and the fixed connecting plate is fixedly connected with one side of the bent arm through a screw and the screw hole.
6. The back single-handwheel focusing transmission structure for the microscope as claimed in claim 1, wherein: the rear part of the bent arm is provided with a knob mounting hole, and the front lower end of the central column of the focusing knob and the rear upper end of the toothed bar shaft sleeve are mutually tightly propped in the knob mounting hole.
7. The back single-handwheel focusing transmission structure for the microscope as claimed in claim 1, wherein: the fixed connecting strips on the two sides of the platform bracket seat are respectively provided with 2 screw holes, and the fixed connecting strips are connected with the lifting seat plate through screws and the screw holes so that the platform bracket is fixedly connected with the lifting seat plate; the upper end of the platform bracket seat is provided with an inserting connection part, the inner side surface of the inserting connection part is provided with an inserting convex head, and the inserting convex head is connected with the inserting groove of the platform bracket in an inserting manner.
8. The back single-handwheel focusing transmission structure for the microscope as claimed in claim 1, wherein: the upper portion of skewed tooth rack is provided with the constant head tank, the upper portion of rack draw-in groove is provided with the locating piece, locating piece size and constant head tank phase-match, the locating piece is inlayed in the constant head tank, each other is tight fit.
9. The back single-handwheel focusing transmission structure for the microscope as claimed in claim 1, wherein: the surface of the focusing knob is provided with handprints.
10. The method for assembling a microscope focusing transmission structure with a back single-hand wheel according to claim 1, wherein: the assembling steps of the back single hand wheel focusing transmission structure for the microscope are as follows:
(1) fixedly mounting the platform above the front part of the platform bracket by using screws; the helical rack is clamped into a rack clamping groove at the rear part of the platform bracket, the platform bracket penetrates through the lifting seat plate and then is connected with the platform bracket seat clamping groove, and the platform bracket seat and the lifting seat plate are fixed by four screws to form a component A;
(2) the lifting seat plate is arranged between the rear end of the base and the front lower part of the upper part of the bent arm;
the toothed bar is arranged in the toothed bar shaft sleeve from the front direction to the back direction, the round notch hole of the focusing knob is sleeved in the round notch part on the upper part of the toothed bar, the front end of the central column of the focusing knob is abutted against the back end part of the toothed bar shaft sleeve, and the round notch part and the round notch hole are mutually in tight fit to form a component B;
(3) the component B is arranged between the rear end of the base and the front lower part of the upper part of the bent arm, and a fixed connecting plate at one side of the lifting seat plate is fixedly connected with one side of the bent arm by using a screw;
(4) engaging the toothed part of the toothed bar on the component B with the helical toothed rack, and fixedly connecting the two side ear holes with the upright column on one side of the curved wall by using two self-tapping screws;
(5) the focusing knob is twisted in the positive and negative directions and debugged, when the focusing knob is twisted, all parts are matched and fastened, the focusing knob is easily twisted, the toothed bar is comfortable to transmit with the helical rack, the platform is flexibly lifted upwards or downwards, and the two adjusting screws adjust the meshing degree of the toothed bar and the helical rack.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011067791.1A CN112051663B (en) | 2020-10-07 | 2020-10-07 | Back single-hand wheel focusing transmission structure for microscope and assembling method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011067791.1A CN112051663B (en) | 2020-10-07 | 2020-10-07 | Back single-hand wheel focusing transmission structure for microscope and assembling method thereof |
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| CN112051663B CN112051663B (en) | 2024-05-14 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007012710A1 (en) * | 2007-03-16 | 2008-09-18 | Carl Zeiss Microimaging Gmbh | Stereo microscope's movement speed controlling method, involves deriving fine focusing speed from rough focusing speed as partial area of one speed curve is spread apart to whole adjusting area of focus operating unit |
| CN206282027U (en) * | 2016-12-20 | 2017-06-27 | 宁波星像光电科技有限公司 | A kind of steady focusing structure of microscope |
| CN207440384U (en) * | 2017-11-16 | 2018-06-01 | 宁波湛京光学仪器有限公司 | Microscope flank of tooth transmission belt lifts focus control |
| CN212781483U (en) * | 2020-10-07 | 2021-03-23 | 宁波湛京光学仪器有限公司 | Back single hand wheel focusing transmission structure for microscope |
-
2020
- 2020-10-07 CN CN202011067791.1A patent/CN112051663B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007012710A1 (en) * | 2007-03-16 | 2008-09-18 | Carl Zeiss Microimaging Gmbh | Stereo microscope's movement speed controlling method, involves deriving fine focusing speed from rough focusing speed as partial area of one speed curve is spread apart to whole adjusting area of focus operating unit |
| CN206282027U (en) * | 2016-12-20 | 2017-06-27 | 宁波星像光电科技有限公司 | A kind of steady focusing structure of microscope |
| CN207440384U (en) * | 2017-11-16 | 2018-06-01 | 宁波湛京光学仪器有限公司 | Microscope flank of tooth transmission belt lifts focus control |
| CN212781483U (en) * | 2020-10-07 | 2021-03-23 | 宁波湛京光学仪器有限公司 | Back single hand wheel focusing transmission structure for microscope |
Non-Patent Citations (1)
| Title |
|---|
| 孙可;陈羽;程超;陈刚;: "数码显微镜的设计", 仪器仪表用户, no. 05, 8 October 2010 (2010-10-08) * |
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