Standard placing frame

Abstract

The utility model provides an etalon placing frame. The base is arranged on the bottom plate, the first adjusting block is arranged on the base and can swing positively and negatively in the first direction, the second adjusting block is connected to one end of the first adjusting block in the second direction, the mounting frame is arranged at the upper end of the second adjusting block in a threaded mode, and a containing cavity is formed in the mounting frame. The side wall, forming the containing cavity, of the installation frame is in threaded connection with locking pieces, the locking pieces axially stretch into the containing cavity, and the locking pieces are arranged at the two ends, in the first direction, of the installation frame. The first direction and the second direction are perpendicular to each other on the same overlook projection plane. According to the utility model, a multi-degree-of-freedom adjustable structure is realized, so that the installation of the etalon meets the calibration requirement of the slit-lamp microscope.

Description

Technical Field

[0001] The utility model relates to the technical field of optical instruments, in particular to a standard device placement rack. 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] Slit lamp microscope calibration requires the use of a standard instrument to calibrate parameters such as the microscope's viewing angle magnification, slit image size, and resolution at the center of the field of view. Standard instruments, such as a glass linear scale and a resolution plate, are used. The appropriate standard instrument must be selected based on the calibration criteria and placed in the center of the microscope's object plane field of view. The standard also requires secure positioning.

[0004] In order to meet the calibration requirements, it is necessary to provide a bracket that can position the standard. Utility Model Content

[0005] In order to meet the above requirements, the purpose of the present invention is to provide a standard device placement rack.

[0006] The technical solution of the present utility model is: a standard device placement rack, including a bottom plate, a base arranged on the bottom plate, a first adjustment block arranged on the base and capable of swinging positively and negatively in a first direction, a second adjustment block connected to one end of the first adjustment block in the second direction, and a mounting rack threaded on the upper end of the second adjustment block, a cavity being provided in the mounting rack, a locking member being threadedly connected on the side wall of the mounting rack forming the cavity, the locking member extending axially into the cavity, and the locking member being arranged at both ends of the first direction of the mounting rack; the first direction and the second direction are perpendicular to each other on the same top projection plane.

[0007] Preferably, the first adjustment block includes a cylinder and an adjustment plate connected to the lower surface of the cylinder, an adjustment hole is provided on the base, the cylinder is adapted to the upper end of the adjustment hole, the adjustment plate is placed at the lower end of the adjustment hole, and the two side walls of the base forming the adjustment hole are threadedly connected with first adjustment knobs, and the two first adjustment knobs are respectively placed on both sides of the first direction of the adjustment plate.

[0008] Preferably, the end of the first adjusting knob is a ball head.

[0009] Preferably, the mounting frame includes a mounting block and a pressure plate, and the mounting block is provided with a first groove that passes through the upper and lower ends at both ends in the first direction, the first groove causes the mounting block to form a first wall and a second wall, and the second wall is provided with a second groove that communicates with the first groove, and the first groove and the second groove both extend along the first direction; the lower part of the pressure plate is placed in the first groove, and a second adjusting knob is provided in the second groove, and the second adjusting knob is threadedly connected to the lower part of the pressure plate and abuts against the first wall; the cavity is provided in the upper part of the pressure plate, and the locking member is connected to the pressure plate.

[0010] Preferably, the pressure plate includes a connecting plate, two first support plates provided at the upper end of the connecting plate, and a second support plate provided at the lower end of the connecting plate. The two first support plates are arranged in parallel and spaced apart in the second direction to form the cavity. The locking member is connected to one of the first support plates, and the second adjustment knob is adapted on the second support plate.

[0011] Preferably, the lower surface of the connecting plate is placed on the upper surface of the mounting block.

[0012] Preferably, a level is provided on the mounting frame, and the level is arranged close to the second adjustment block.

[0013] Preferably, both ends of the bottom plate in the first direction extend to the outside of the mounting frame.

[0014] Preferably, the second adjusting block can be displaced forward and backward along the second direction in the base, and the moving position of the second adjusting block is limited by a locking knob installed on the base.

[0015] Preferably, a standard device is installed in the cavity, and the locking member axially extends into the cavity and abuts against the standard device.

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

[0017] First, based on the installation requirements of the standard (glass linear scale and resolution plate), a first adjustment block is designed that can swing in a first direction to level the mounting frame. The mounting frame is threadedly connected to the second adjustment block to adjust the height of the mounting frame, thus realizing a multi-degree-of-freedom adjustable structure, so that the installation of the standard meets the calibration requirements of the slit lamp microscope.

[0018] 2. The fixation of the standard is achieved through the locking parts of the threaded connection, which is convenient and quick to operate;

[0019] 3. The position of the pressing block for fixing the standard device in the first direction is adjustable, which can be used to fix standards of different sizes and has better versatility;

[0020] Fourth, a level is provided on the mounting frame to provide an effective reference for the horizontal adjustment of the first adjustment knob. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A schematic diagram of the structure inside the standard device placement rack according to the first embodiment of the present invention;

[0022] Figure 2 for Figure 1 Side view of;

[0023] Figure 3 For the Figure 2 AA cross-sectional view of ;

[0024] Figure 4 A schematic diagram of the interior structure of the standard device placement rack according to the second embodiment of the present invention;

[0025] Figure 5 for Figure 4 Right view of .

[0026] In the accompanying drawings: 1. Bottom plate; 101. Mounting hole; 2. Base; 21. Adjustment hole; 3. First adjustment block; 31. Cylinder; 32. Adjustment plate; 33. Locking knob; 4. Second adjustment block; 5. Mounting frame; 51. Mounting block; 511. First groove; 512. First wall; 513. Second wall; 514. Second groove; 52. Pressing plate; 521. Connecting plate; 522. First support plate; 523. Second support plate; 524. Cavity; 6. Locking piece; 7. Level; 8. First adjustment knob; 81. Ball head; 9. Second adjustment knob; 10. Locking nut; 11. Standard instrument. 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] Example 1

[0029] like Figure 1 、 Figure 2As shown, the standard instrument mounting rack provided in this embodiment includes a base plate 1, a pedestal 2, a first adjustment block 3, a second adjustment block 4, a mounting bracket 5, a locking member 6, a level 7, a first adjustment knob 8, a second adjustment knob 9 and a locking nut 10. The base plate 1 is a long rectangular plate having mounting holes 101 at both ends in a first direction X for fixing the entire bracket. The base 2 is vertically connected to the middle of the base plate 1. The base 2 and the base plate 1 have the same width in the second direction Y. The first direction X is the length direction of the base plate 1, and the second direction Y is the width direction of the base plate 1.

[0030] like Figure 3 As shown, the base 2 is provided with an adjustment hole 21, which has a circular upper end and a square lower end. The first adjustment block 3 includes a cylinder 31 and an adjustment plate 32 connected to the lower surface of the cylinder 31. The cylinder 31 fits into the circular hole, and the adjustment plate 32 is positioned at the lower end of the hole. First adjustment knobs 8 are threadedly connected to both sidewalls of the base 2 forming the adjustment hole 21. Two first adjustment knobs 8 are positioned on either side of the adjustment plate in the first direction. The two first adjustment knobs 8 terminate in ball heads 81, which abut against the adjustment plate 32. By turning the first adjustment knobs 8 (one extending, the other shortening), the adjustment plate 32 is pushed to swing within a range of ±5 mm, thereby causing the first adjustment block 3 to swing. The circular surface of the circular hole is designed to prevent the cylinder from falling in the hole while ensuring a sufficient swing range for the adjustment plate 32.

[0031] The first adjustment block 3 can be displaced forward and backward in the adjustment hole 21 along the second direction Y to adjust the forward and backward position of the mounting bracket 5. A locking knob 33 is threadedly connected to the base 2. The end of the locking knob 33 abuts the upper surface of the cylinder 31 to define the forward and backward adjustment position of the first adjustment block 3. The locking knob 33 is released and the first adjustment block 3 can be manually adjusted.

[0032] like Figure 2 As shown, both ends of the first adjustment block 3 extend outward from the base 2, and the second adjustment block 4 is fixed on one of the extended outer sides. Figure 3As shown, the upper end of the second adjustment block 4 is provided with a threaded rod, which extends into the mounting block 51 of the mounting bracket 5 (either for a clearance insertion or a threaded connection). A locking nut 10 is fitted onto the threaded rod. If a clearance insertion is used, the locking nut 10 is first lowered to directly raise or lower the height of the mounting bracket 5. The locking nut 10 is then tightened until it abuts the lower surface of the mounting bracket 5 to lock the position. A screw is provided on the mounting block 51 to abut the threaded rod to lock the relative position of the mounting bracket 5 and the threaded rod. If a threaded connection is used, the locking nut 10 is first lowered to adjust the height of the mounting bracket 5 by rotation. The locking nut 10 is then tightened until it abuts the lower surface of the mounting bracket 5 to secure the mounting bracket 5.

[0033] like Figure 1 、 Figure 2 As shown, the mounting bracket 5 includes a mounting block 51 and a pressure plate 52. The mounting block 51 is provided with first slots 511 extending vertically at both ends thereof in the first direction X. The first slots 511 form a first wall 512 and a second wall 513 within the mounting block 51. The second wall 513 is provided with a second slot 514 communicating with the first slot 511. Both the first slot 511 and the second slot 514 extend in the first direction X, with the first slots 511 extending in a direction away from each other, and the second slots 514 extending in a direction away from each other.

[0034] The pressure plate 52 includes a connecting plate 521, two first support plates 522 provided at the upper end of the connecting plate 521, and a second support plate 523 provided at the lower end of the connecting plate 521. The two first support plates 522 are arranged parallel to each other in the second direction Y and spaced apart to form a cavity 524. The lower surface of the connecting plate 521 is placed on the upper surface of the mounting block 51.

[0035] A second adjustment knob 9 is provided in the second groove 514 and is threadedly connected to the second support plate 523. The second adjustment knob 9 passes through the second support plate 523 and abuts the inner surface of the first wall 512. The second adjustment knob 9 allows the position of the pressure plate 52 to be adjusted along the second groove 514 to accommodate the positioning of standards of different sizes. The locking member 6 is a screw threadedly connected to one of the first support plates 522.

[0036] A level 7 is provided on the mounting block 51 of the mounting frame 5 . The level 7 is disposed close to the second adjustment block 4 , and the level 7 is only located between the two second slots 514 .

[0037] The standard instrument mounting rack features a bottom-heavy, top-light structure, with the base plate 1 constructed of stainless steel and the remainder constructed of aluminum alloy. The length of the pressure block 52 can be adjusted from 40 to 90 mm, and the clamping member 6 has a maximum clamping thickness range of 7 mm. The clamping member 6 is a soft rubber screw, conveniently clamping standards 11 of varying lengths, thicknesses, and shapes. The base plate 1 is 127 mm long and 27 mm wide, and the mounting hole 101 is a 21 mm long, waist-shaped hole.

[0038] Example 2

[0039] like Figure 4 、 Figure 5 As shown, the first embodiment is repeated, except that in this embodiment, the standard mounting frame further includes a standard 11 (a glass linear scale or a resolution plate). The standard 11 is placed in the cavity 524. The end of the locking member 6 abuts against the standard 11, causing the standard 11 to contact the inner surface of the first support plate 522 to achieve position control. The lower surface of the standard 11 is placed on the upper surface of the connecting plate 521.

[0040] During use, select the required glass scale (or resolution plate) based on the different items being inspected. Loosen the locking member 6 and the second adjustment knob 9 and place the glass scale (or resolution plate) in the cavity 524. First, adjust the pressure plate 52 to the appropriate position, then tighten the second adjustment knob 9. Adjust the locking member 6 to secure the glass scale (or resolution plate). Then, place the base plate 1 on the jaw rest of the slit lamp microscope and secure it by inserting a fixing pin through the mounting hole 101. If the jaw rest of the slit lamp microscope does not have a fixing hole, place the rear bracket directly. Because the rear bracket adopts a top-heavy, bottom-light structure, it can be placed stably and horizontally. Then, adjust the horizontality and height of the mounting bracket 5 according to actual usage needs; adjust the front and back of the mounting bracket 5 and the left and right position of the glass scale (or resolution plate) so that the glass scale (or resolution plate) is placed in the appropriate position for measurement.

[0041] 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 standard device placement rack, characterized in that: The invention comprises a bottom plate, a base arranged on the bottom plate, a first adjustment block arranged on the base and capable of swinging positively and negatively in a first direction, a second adjustment block connected to one end of the first adjustment block in a second direction, and a mounting bracket threadedly connected to the upper end of the second adjustment block, wherein a cavity is provided in the mounting bracket, a locking member is threadedly connected on the side wall of the mounting bracket forming the cavity, the locking member axially extends into the cavity, and the locking member is provided at both ends of the mounting bracket in the first direction; the first direction and the second direction are perpendicular to each other on the same top projection plane.

2. The standard device mounting rack according to claim 1, characterized in that: The first adjustment block includes a cylinder and an adjustment plate connected to the lower surface of the cylinder. An adjustment hole is provided on the base. The cylinder is adapted to the upper end of the adjustment hole. The adjustment plate is placed at the lower end of the adjustment hole. The two side walls of the base forming the adjustment hole are both threadedly connected with first adjustment knobs. The two first adjustment knobs are respectively placed on both sides of the adjustment plate in the first direction.

3. The standard device mounting rack according to claim 2, characterized in that: The end of the first adjusting knob is a ball head.

4. The standard device mounting rack according to claim 1, characterized in that: The mounting frame includes a mounting block and a pressure plate, and the mounting block is provided with a first groove that passes through the upper and lower ends in the first direction, the first groove forms a first wall and a second wall of the mounting block, and the second wall is provided with a second groove that communicates with the first groove, and the first groove and the second groove both extend along the first direction; the lower part of the pressure plate is placed in the first groove, and a second adjusting knob is provided in the second groove, and the second adjusting knob is threadedly connected to the lower part of the pressure plate and abuts against the first wall; the upper part of the pressure plate is provided with the cavity, and the locking member is connected to the pressure plate.

5. The standard device mounting rack according to claim 4, characterized in that: The pressure plate includes a connecting plate, two first support plates provided at the upper end of the connecting plate, and a second support plate provided at the lower end of the connecting plate. The two first support plates are arranged in parallel and spaced apart in the second direction to form the cavity. The locking member is connected to one of the first support plates, and the second adjustment knob is adapted to the second support plate.

6. The standard device mounting rack according to claim 5, characterized in that: The lower surface of the connecting plate is placed on the upper surface of the mounting block.

7. The standard device mounting rack according to claim 1, characterized in that: A level is provided on the mounting frame and is arranged close to the second adjusting block.

8. The standard device mounting rack according to claim 1, characterized in that: Two ends of the bottom plate in the first direction extend outward from the mounting frame.

9. The standard device mounting rack according to claim 1, characterized in that: The first adjusting block can be displaced forward and backward along the second direction in the base, and the displacement position of the first adjusting block is limited by a locking knob installed on the base.

10. The standard device mounting rack according to any one of claims 1 to 9, characterized in that: A standard device is installed in the cavity, and the locking member axially extends into the cavity and abuts against the standard device.

Images