Fixing frame for total magnification tester of microscope

Abstract

The utility model provides a fixing frame for a total magnification tester of a microscope. The microscope total magnification tester fixing frame comprises a base, a stand column, a first mounting seat, a second mounting seat and a clamping piece, wherein the stand column is movably arranged on the base in the first direction X; the first mounting seat is connected to the stand column in a lifting manner; the second mounting seat is rotationally arranged on the first mounting seat; a clamping head capable of being opened and closed in the first direction X is arranged on the clamping piece, a clamping opening is formed in the opened and closed clamping head, and the first direction X and the second direction Y are perpendicular to each other on the same overlook projection plane. According to the utility model, the stand column capable of moving in the first direction, the first mounting seat capable of lifting, the second mounting seat capable of rotating and the clamping piece capable of moving in the first direction are designed to realize a multi-degree-of-freedom adjustable structure, so that the total magnification tester of the microscope can be aligned with a left or right view field of the slit-lamp microscope; and the calibration requirement of the slit-lamp microscope is met.

Description

Technical Field

[0001] The utility model relates to the technical field of optical instruments, in particular to a fixing frame for a microscope total magnification measuring instrument. Background Art

[0002] Slit lamp microscopes are primarily used in ophthalmology to observe the health of various parts of the eye. They primarily illuminate the eye through a slit, creating an optical section. These microscopes clearly visualize superficial lesions. Adjustable focus and light width create "optical sections" that allow observation of lesions deeper within the eye. Slit lamp microscopes must be calibrated to ensure their effectiveness and accuracy.

[0003] The method for calibrating the viewing angle magnification of a slit lamp microscope is as follows: First, place the glass linear ruler in a dedicated holder and center it on the object plane. Adjust the microscope eyepiece to zero diopter and adjust the image plane distance of the objective lens to ensure a clear image of the glass linear ruler. Align the microscope total magnification meter with the output optical axis of the microscope eyepiece, with the scale lines parallel to the glass linear ruler lines. Use the microscope total magnification meter's micrometer eyepiece to read the size of the glass linear ruler image on the object plane.

[0004] In order to meet the measurement requirements of the above calibration items, it is necessary to provide a bracket capable of positioning the microscope total magnification measuring instrument. Utility Model Content

[0005] In order to meet the above requirements, the purpose of the present invention is to provide a fixing bracket for a microscope total magnification measuring instrument.

[0006] The technical solution of the utility model is: a microscope total magnification measuring instrument fixing frame, comprising a base, a column movably disposed on the base along a first direction X, a first mounting seat lifted and connected to the column, a second mounting seat rotatably disposed on the first mounting seat, and a clamping member movably disposed on the second mounting seat along a second direction Y, wherein the clamping member is provided with a chuck that can be opened and closed in the first direction X, and the opened and closed chuck forms a clamping opening, and the first direction X and the second direction Y are perpendicular to each other on the same top projection plane.

[0007] Preferably, the base is provided with a screw for driving the column to move in the first direction X, the base is provided with a first sliding groove adapted to the lower end of the column, the screw is rotatably arranged on the base, and the lower end of the column is threadedly connected to the screw.

[0008] Preferably, the column includes an outer rod, an inner rod telescopically sleeved on the outer rod, and a threaded sleeve for locking the relative position of the inner rod and the outer rod, the lower end of the outer rod is connected to the base, and the upper end of the inner rod is connected to the first mounting seat.

[0009] Preferably, the first mounting seat includes a first mounting plate, a connecting member, a clamp and a second locking knob, the first mounting plate is threadedly connected to the column, the lower part of the connecting member is connected to the first mounting plate, the upper part of the connecting member forms a cavity for accommodating the second mounting seat, the clamp is sleeved on the upper part of the connecting member, and the second locking knob for shrinking the cavity to define the second mounting seat is installed on the clamp.

[0010] Preferably, the first mounting seat also includes a shell, a third locking knob and a limit plate. The first mounting plate, the connecting piece and the clamp are placed in the shell. The second locking knob passes through the shell. The third locking knob is rotatably arranged on the shell, and one end of the third locking knob extends into the shell to install the limit plate. The limit plate moves with the third locking knob to abut or disengage from the second mounting seat.

[0011] Preferably, the shell is provided with a first slot that can avoid the limit plate. When the limit plate abuts against the second mounting seat, the outer surface of the limit plate is flush with the outer surface of the shell. When the limit plate is disengaged from the second mounting seat, a part of the limit plate is rotated out to the outside of the shell.

[0012] Preferably, the second mounting seat includes a second mounting plate, a ball head and a fourth locking knob, the clamping member includes a slider connected to the lower end of the clamp, the ball head is provided at the lower end of the second mounting plate, the ball head is adapted to the first mounting seat, the upper end of the second mounting plate is provided with a second slide groove, the slider cooperates with the second slide groove, the fourth locking knob is threadedly connected to the second mounting plate, and the fourth locking knob is axially extended and retracted to abut or disengage from the slider.

[0013] Preferably, a limit block is installed on the second mounting plate, and the limit block and the second mounting plate together form the second slide groove. One side of the limit block is connected to the second mounting plate through a spring, and the other end of the limit block is provided with a button.

[0014] Preferably, the slider and the second slide groove are dovetail structures.

[0015] Preferably, a first locking knob is threadedly connected to the chuck, and the first locking knob extends into the clamping opening.

[0016] Compared with the related art, the beneficial effects of the present invention are:

[0017] 1. Based on the installation requirements of the microscope total magnification meter, a column that can move in a first direction, a first mounting seat that can be raised and lowered, a second mounting seat that can rotate, and a clamping member that can move in the first direction are designed to realize a multi-degree-of-freedom adjustable structure, so that the microscope total magnification meter can be aligned with the left or right field of view of the slit lamp microscope, meeting the calibration requirements of the slit lamp microscope;

[0018] 2. The microscope total magnification measuring instrument is locked by a chuck with a clamping mouth, which is quick to install and disassemble, and the clamping is stable;

[0019] 3. The second mounting seat is provided with a ball head adapted to the first mounting seat, which enables adjustment of 360 degrees at any angle, with a wider adjustment range and better applicability. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a front view structural schematic diagram of the fixing frame of the microscope total magnification measuring instrument provided by the present invention;

[0021] Figure 2 A schematic side view of the structure of a fixing frame of a microscope total magnification measuring instrument provided by the present invention;

[0022] Figure 3 For the Figure 1 AA cross-sectional view in FIG;

[0023] Figure 4 This is a schematic diagram of the internal structure of the first mounting base and the second mounting base without the outer shell;

[0024] Figure 5 This is a schematic diagram of the installation of the ball head in the first mounting seat;

[0025] Figure 6 for Figure 1 Enlarged schematic diagram of point B in FIG.

[0026] In the accompanying drawings: 1. base; 11. first slide groove; 12. support leg; 2. column; 21. outer rod; 22. inner rod; 23. threaded sleeve; 3. first mounting seat; 31. first mounting plate; 32. locking nut; 33. connecting piece; 331. cavity; 34. clamp; 35. second locking knob; 36. third locking knob; 37. limiting sleeve; 371. second slot; 38. outer shell; 381. first slot; 39. limiting plate; 4. second mounting seat; 41. second mounting plate; 411. first sliding side wall; 42. ball head; 43. second slide groove; 44. fourth locking knob; 45. limiting block; 46. spring; 47. button; 5. clamp; 51. chuck; 52. clamping mouth; 53. first locking knob; 54. slider. DETAILED DESCRIPTION

[0027] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments. It should be noted that the embodiments and features of the embodiments of the present invention may be combined unless they conflict. For ease of description, the words "upper," "lower," "left," and "right" appear below merely to indicate the directions of upper, lower, left, and right in the accompanying drawings and do not limit the structure.

[0028] like Figure 1 、 Figure 2 As shown, a fixing frame of a microscope total magnification measuring instrument provided in this embodiment includes a base 1, a column 2, a first mounting seat 3, a second mounting seat 4, a clamping member 5 and a screw rod 6.

[0029] The base 1 has a length direction X (first direction X) and a width direction Y (second direction Y). The length of the base 1 is longer than the other components above, so that the front bracket forms a bottom-heavy and top-light structure. The bottom of the base 1 is provided with supporting legs 12, and the supporting legs 12 are arranged around the base 1. Figure 3 As shown, the base 1 is provided with a first sliding groove 11 which passes through the base 1 from top to bottom. The screw rod 6 is rotatably provided on two side walls of the base 1 in the first direction X in which the first sliding groove 11 is formed.

[0030] The base 1 is 180mm long, 30mm high and 73mm wide, and the column 2 thereon has an adjustable range of 0-170mm with a displacement accuracy of 0.01mm, and can be easily moved to the left or right field of view of the slit lamp being inspected.

[0031] The upright post 2 includes an outer rod 21, an inner rod 22 that telescopically fits over the outer rod 21, and a threaded sleeve 23 for locking the relative position of the inner rod 22 and the outer rod 21. The lower end of the outer rod 21 extends into the first chute 11 and threads with the screw 6. The first chute 11 is used to confine the outer rod 21, so that the rotation of the screw 6 is converted into position adjustment of the outer rod 21 in the first direction X. The upper end of the inner rod 22 is threadedly connected to the first mounting plate 31 of the first mounting seat 3. The threaded sleeve 23 is similar to the locking member on a clothes drying rod or mop rod, and is used to lock the relative position between the two telescopic rods, thereby achieving adjustment of the extended length of the inner rod 22.

[0032] The column 2 is made of aluminum alloy, and the telescopic adjustment range is 110 mm. The angle adjustment can adopt a spherical pan-tilt structure (mature structure), and any angle can be adjusted as needed.

[0033] like Figure 1 、 Figure 4 As shown, the first mounting seat 3 includes a first mounting plate 31 , a locking nut 32 , a connector 33 , a clamp 34 , a second locking knob 35 , a third locking knob 36 , a limiting sleeve 37 , a housing 38 and a limiting plate 39 .

[0034] like Figure 5 As shown, a threaded hole extending downward is provided in the middle of the first mounting plate 31, and the upper end of the inner rod 22 is threadedly connected to the threaded hole. The outer shell 38 is placed on the upper surface of the first mounting plate 31, and a cavity is provided in the outer shell 38. The lower end of the connecting member 33 is cylindrical, which is mounted on the first mounting plate 31 and connected to the first mounting plate 31 by bolts. The outer surface of the cylinder is locked by a locking nut 32. The upper end of the connecting member 33 is bowl-shaped, and a cavity 331 for accommodating the ball head 42 is formed inside the bowl. A clamp 34 is mounted on the outer surface of the bowl. As shown Figure 4 As shown, the opening of the clamp 34 is connected via a second locking knob 35. The second locking knob 35 extends from the housing 38. Rotating the second locking knob 35 reduces the opening of the clamp 34, causing the clamp 34 to grip the bowl portion of the connector 33, shrinking the cavity 331 and thereby confining the ball head 42 ("confinement" can mean designing the bowl wall as a flexible structure, such as rubber, with an appropriate height, so that when the cavity 331 shrinks, the bowl wall grips the ball head 42; or, alternatively, when the cavity 331 shrinks, the movable space of the ball head 42 is reduced and confined. In this case, the ball head 42 is fixed solely by the contact of the limit plate 39). Conversely, when the opening of the clamp 34 expands, the bowl wall expands, and the third locking knob 36 is then rotated to release the limit plate 39, and the second mounting base 4 is then manually rotated to the appropriate angle.

[0035] like Figure 4 、 Figure 5 As shown, in order to ensure that the ball head 42 has a rotation limiting path, a limiting sleeve 37 is provided in the housing 38 so that the ball head 42 rotates inside the limiting sleeve 37. Figure 1 As shown, the housing 38 is threadedly connected with a third locking knob 36. Figure 4 As shown, one end of the third locking knob 36 extends into the housing 38 and is provided with a limit plate 39. The limit plate 39 moves with the third locking knob 36 to abut or disengage from the outer surface of the ball head 42. In order to ensure that the limit plate 39 has sufficient travel, the housing 38 is provided with a first slot 381 (such as Figure 1 As shown in FIG3 , when the limiting plate 39 abuts the second mounting seat 4, the outer surface of the limiting plate 39 is flush with the outer surface of the housing 38. When the limiting plate 39 is disengaged from the second mounting seat 4, a portion of the limiting plate 39 is rotated outward from the housing 38. Furthermore, the limiting sleeve 37 is provided with a second slot 371 for the limiting plate 39 to extend into.

[0036] like Figure 1 、 Figure 4As shown, the second mounting seat 4 includes a second mounting plate 41 , a ball head 42 , a second sliding groove 43 , a fourth locking knob 44 , a limit block 45 , a spring 46 and a button 47 .

[0037] like Figure 1 、 Figure 6 As shown, the lower end of the second mounting plate 41 is connected to the ball head 42. A first sliding side wall 411 is provided on one side of the second direction Y of the upper end of the second mounting plate 41, and a limit block 45 is installed on the other side of the second direction Y of the upper end of the second mounting plate 41. The limit block 45 is connected to the second mounting plate 41 by a spring 46, and a second sliding side wall 451 is provided on the upper end of the limit block 45. The first sliding side wall 411 and the second sliding side wall 451 are arranged relative to each other to form a second slide groove 43 with a dovetail structure. Under the action of the spring 46, the second sliding side wall 451 can increase the resistance to the slider 54. A button 47 is installed on the outer surface of the limit block 45. The fourth locking knob 44 is threadedly connected to the second mounting plate 41, and the fourth locking knob 44 is arranged close to the first sliding side wall 411.

[0038] The clamping member 5 includes a chuck 51, a clamping opening 52, a first locking knob 53 and a slider 54. There are two chucks 51, one end of which is hinged to each other and is designed with a spring (not shown) so that the chuck 51 can be opened and closed in the first direction X and a clamping force is applied by the spring. The opened and closed chuck 51 is formed with a clamping opening 52. The lower end of the chuck 51 is connected to the slider 54. The slider 54 is a dovetail structure and is adapted to fit in the second slide groove 43. When it is necessary to adjust the front and rear position (second direction Y) of the clamping member 5, the fourth locking knob 44 is released, and the slider 54 is manually moved so that the microscope total magnification meter on the chuck 51 is placed in a suitable front and rear position, and then the fourth locking knob 44 is locked.

[0039] like Figure 1 As shown, the chuck 51 is threaded with a first locking knob 53, which extends into the clamping opening 52. The clamping opening 52 has a maximum clamping diameter of 48 mm. The inner surface of the chuck 51 is provided with a rubber protective layer to facilitate clamping of standard instruments such as diopter tubes and microscope total magnification meters.

[0040] The utility model realizes left-right (first direction X) position adjustment of the chuck 51 through the screw rod 6 , realizes angle adjustment of the chuck 51 through the ball head 42 , and realizes front-back position adjustment of the chuck 51 through the slider 54 .

[0041] To use, install the desired microscope total magnification meter in the clamping port according to the item being measured, tighten it, and align it with the left or right field of view of the slit lamp microscope. Adjust the angle and height. Then, you can start measuring.

[0042] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A fixing frame for a microscope total magnification measuring instrument, characterized in that: The invention comprises a base (1), a column (2) arranged on the base (1) and movable along a first direction X, a first mounting seat (3) connected to the column (2) by lifting, a second mounting seat (4) rotatably arranged on the first mounting seat (3), and a clamping member (5) arranged on the second mounting seat (4) and movable along a second direction Y, wherein the clamping member (5) is provided with a clamping head (51) that can be opened and closed in the first direction X, and the clamping head (51) that is opened and closed forms a clamping opening (52), and the first direction X and the second direction Y are perpendicular to each other on the same top projection plane.

2. The fixing bracket of the microscope total magnification measuring instrument according to claim 1, characterized in that: The base (1) is provided with a screw rod (6) for driving the column (2) to move in a first direction X, the base (1) is provided with a first sliding groove (11) adapted to the lower end of the column (2), the screw rod (6) is rotatably arranged on the base (1), and the lower end of the column (2) is threadedly connected to the screw rod (6).

3. The fixing bracket of the microscope total magnification measuring instrument according to claim 1, characterized in that: The column (2) comprises an outer rod (21), an inner rod (22) telescopically sleeved on the outer rod (21), and a threaded sleeve (23) for locking the relative position of the inner rod (22) and the outer rod (21); the lower end of the outer rod (21) is connected to the base (1), and the upper end of the inner rod (22) is connected to the first mounting seat (3).

4. The fixing bracket of the microscope total magnification measuring instrument according to claim 1, characterized in that: The first mounting seat (3) comprises a first mounting plate (31), a connecting member (33), a hoop (34) and a second locking knob (35), wherein the first mounting plate (31) is threadedly connected to the column (2), the lower portion of the connecting member (33) is connected to the first mounting plate (31), the upper portion of the connecting member (33) forms a cavity (331) for accommodating the second mounting seat (4), the hoop (34) is fitted onto the upper portion of the connecting member (33), and the second locking knob (35) for shrinking the cavity (331) to define the second mounting seat (4) is installed on the hoop (34).

5. The fixing bracket of the microscope total magnification measuring instrument according to claim 4, characterized in that: The first mounting seat (3) further includes a housing (38), a third locking knob (36) and a limiting plate (39); the first mounting plate (31), the connecting member (33) and the clamp (34) are placed in the housing (38); the second locking knob (35) extends out of the housing (38); the third locking knob (36) is rotatably mounted on the housing (38); and one end of the third locking knob (36) extends into the housing (38) to be installed with the limiting plate (39); the limiting plate (39) moves with the third locking knob (36) to abut against or disengage from the second mounting seat (4).

6. The fixing bracket of the microscope total magnification measuring instrument according to claim 5, characterized in that: The housing (38) is provided with a first slot (381) capable of avoiding the limiting plate (39); when the limiting plate (39) abuts against the second mounting seat (4), the outer surface of the limiting plate (39) is flush with the outer surface of the housing (38); when the limiting plate (39) is disengaged from the second mounting seat (4), a portion of the limiting plate (39) is rotated outward to the outside of the housing (38).

7. The fixing bracket of the microscope total magnification measuring instrument according to claim 1, characterized in that: The second mounting seat (4) includes a second mounting plate (41), a ball head (42) and a fourth locking knob (44); the clamping member (5) includes a slider (54) connected to the lower end of the clamping head (51); the ball head (42) is provided at the lower end of the second mounting plate (41); the ball head (42) is adapted to be mounted in the first mounting seat (3); a second slide groove (43) is provided at the upper end of the second mounting plate (41); the slider (54) cooperates with the second slide groove (43); the fourth locking knob (44) is threadedly connected to the second mounting plate (41); the fourth locking knob (44) is axially retracted to abut against or disengage from the slider (54).

8. The fixing bracket of the microscope total magnification measuring instrument according to claim 7, characterized in that: A limiting block (45) is installed on the second mounting plate (41), and the limiting block (45) and the second mounting plate (41) together form the second sliding groove (43). One side of the limiting block (45) is connected to the second mounting plate (41) via a spring (46), and the other end of the limiting block (45) is provided with a button (47).

9. The fixing bracket of the microscope total magnification measuring instrument according to claim 7, characterized in that: The slider (54) and the second slide groove (43) are dovetail structures.

10. The fixing bracket of the microscope total magnification measuring instrument according to claim 1, characterized in that: A first locking knob (53) is threadedly connected to the clamping head (51), and the first locking knob (53) extends into the clamping opening (52).

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