Slit lamp convenient to adjust

Abstract

The slit lamp convenient to adjust comprises an installation plate, an operation table is arranged on the rear side of the upper end of the installation plate, a detector is arranged at the upper end of the operation table, and the slit lamp convenient to adjust further comprises a distance adjusting mechanism and a lifting mechanism. The distance adjusting mechanism comprises guide rods and sliding strips, the guide rods in bilateral symmetry are fixedly connected to the interior of the front side of the mounting plate, the sliding strips are slidably connected to the exteriors of the guide rods respectively, a transverse strip is fixedly connected to the upper side between the front ends of the sliding strips at the two ends, and the sliding rods in bilateral symmetry are fixedly connected to the upper end of the transverse strip; a chin rest is slidably connected between the middles of the two sliding rods, and a forehead supporting belt is fixedly connected between the upper ends of the two sliding rods. The lifting mechanism comprises a U-shaped sliding block, a connecting rod and a U-shaped block, when the slit lamp convenient to adjust is used, the distance and height can be automatically adjusted according to different patients, ophthalmic examinations can be better conducted on the different patients, and the flexibility of the slit lamp is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of slit lamp, concretely to a slit lamp convenient to adjust. BACKGROUND

[0002] Slit lamp is a kind of commonly used ophthalmic examination instrument, full name is slit lamp microscope, slit lamp uses optical principle, and strong light is focused into slit-shaped light beam and is projected into eye, when light irradiates to eye tissue, different levels of tissue will produce reflection, refraction and scattering phenomenon because of the difference of refractive index, and microscope system is used to collect these light and is enlarged to form image, so that examiner can observe eye microstructure;

[0003] Part of existing slit lamp, when using slit lamp, the height of the cheek and the distance between the patient and the examination instrument are adjusted by manually rotating the dial wheel;

[0004] Part of existing slit lamp has the following problems: when using slit lamp, manual adjustment is inconvenient, so that the ophthalmic examination for different patients cannot be better carried out, and the flexibility of slit lamp is reduced, for this reason, we propose a slit lamp convenient to adjust. INVENTION CONTENTS

[0005] The technical problem to be solved by the utility model is to overcome the defects of the prior art, provide a slit lamp convenient to adjust, when using slit lamp, distance and height can be automatically adjusted according to different patients, the ophthalmic examination for different patients can be better carried out, the flexibility of slit lamp is improved, and the problems in the background art can be effectively solved.

[0006] To achieve the above object, the utility model provides the following technical scheme: a slit lamp convenient to adjust, including mounting plate, the upper end rear side of mounting plate is equipped with operation table, the upper end of operation table is equipped with detection instrument, still includes distance adjusting mechanism and lifting mechanism;

[0007] Distance adjusting mechanism: it includes guide rod and slide, the front side inside of mounting plate is fixedly connected with left-right symmetry guide rod, the outer part of guide rod is slidably connected with slide, the upper side between the front end of two end slides is fixedly connected with crosspiece, the upper end of crosspiece is fixedly connected with left-right symmetry slide rod, the lower end of cheek support is equipped with left-right symmetry U-shaped block, the upper end between two slide rods is fixedly connected with forehead support belt;

[0008] Lifting mechanism: it includes U-shaped slide block, connecting rod and U-shaped block, the inside of crosspiece is slidably connected with left-right symmetry U-shaped slide block, the lower end of cheek support is equipped with left-right symmetry U-shaped block, the upper end between U-shaped slide block and vertically adjacent U-shaped block is respectively rotatably connected with connecting rod, when using slit lamp, distance and height can be automatically adjusted according to different patients, the ophthalmic examination for different patients can be better carried out, and the flexibility of slit lamp is improved.

[0009] Furthermore, the mounting plate is provided with a control switch group on its exterior. The input end of the control switch group is electrically connected to the output end of an external power supply to provide electrical connections for various electrical appliances.

[0010] Furthermore, the distance adjustment mechanism also includes a vertical plate, a rotating rod, a rack, and gears. The bottom wall of the mounting plate is fixedly connected to a symmetrical vertical plate. A rotating rod is rotatably connected between the two vertical plates. Gears are fixedly connected to the left and right ends of the rotating rod. A rack is provided at the lower end of the inner side of the slide bar. The rack meshes with the vertically adjacent gears to provide a rotatable connection.

[0011] Furthermore, the distance adjustment mechanism also includes a worm and a worm wheel. The worm wheel is fixedly sleeved in the middle of the rotating rod, and the lower end of the worm is rotatably connected to the bottom wall of the mounting plate, providing a rotatable connection.

[0012] Furthermore, the distance adjustment mechanism also includes a motor, which is located at the lower end of the mounting plate. The upper end of the output shaft of the motor is fixedly connected to the lower end of the worm gear, and the input end of the motor is electrically connected to the output end of the control switch group to provide distance adjustment drive.

[0013] Furthermore, the lifting mechanism also includes a bidirectional lead screw, which is rotatably connected between the left and right inner walls of the crossbar. The left and right ends of the bidirectional lead screw are respectively threadedly connected to the threaded holes at the lower ends of the vertically adjacent U-shaped sliders, providing a rotatable connection.

[0014] Furthermore, the lifting mechanism also includes a second motor, which is located at the right end of the horizontal bar. The left end of the output shaft of the second motor is fixedly connected to the right end of the bidirectional lead screw. The input end of the second motor is electrically connected to the output end of the control switch group to provide height adjustment drive.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: This easily adjustable slit lamp has the following advantages:

[0016] 1. The worm gear and meshing worm wheel cause the rotating rod to drive the gears at both ends to rotate. The gears will drive the slide bar to move back and forth on the guide rod through the meshing rack, which in turn drives the horizontal bar to move back and forth. The horizontal bar will drive the cheek rest and forehead rest to move back and forth. When using the slit lamp, the distance between the patient's eye and the examination instrument can be adjusted according to different patients, which improves the flexibility of the slit lamp.

[0017] 2. The U-shaped slider of the threaded part moves inside the crossbar through the double-acting screw. When the U-shaped sliders move in opposite directions, they will drive the cheek rest to move upward between the slide bars through the connecting rod and the U-shaped block. When the U-shaped sliders move in opposite directions, they will drive the cheek rest to move downward between the slide bars through the connecting rod and the U-shaped block. When using the slit lamp, the height can be adjusted according to different patients to better conduct ophthalmic examinations for different patients. Attached Figure Description

[0018] Fig. 1 This is a schematic diagram of the structure of this utility model;

[0019] Fig. 2 This is a schematic diagram of the front side structure of this utility model;

[0020] Fig. 3 This is a cross-sectional structural diagram of the present invention.

[0021] In the diagram: 1 Mounting plate, 2 Operating table, 3 Detector, 4 Control switch group, 5 Distance adjustment mechanism, 51 Motor 1, 52 Worm gear, 53 Worm wheel, 54 Vertical plate, 55 Rotating rod, 56 Rack, 57 Gear, 58 Guide rod, 59 Slide bar, 6 Horizontal bar, 7 Lifting mechanism, 71 Motor 2, 72 Bidirectional lead screw, 73 U-shaped slider, 74 Connecting rod, 75 U-shaped block, 8 Slide bar, 9 Cheek rest, 10 Forehead support strap. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figs. 1-3 This embodiment provides a technical solution: an easily adjustable slit lamp, including a mounting plate 1, an operating table 2 on the upper rear side of the mounting plate 1, a detector 3 on the upper end of the operating table 2, a distance adjustment mechanism 5 and a lifting mechanism 7, a control switch group 4 on the outside of the mounting plate 1, the input end of the control switch group 4 being electrically connected to the output end of an external power supply, when using the slit lamp, the patient places their chin on the upper end of the chin rest 9, and their forehead will contact the forehead rest strap 10, and then the detector 3 will monitor the situation.

[0024] Distance adjustment mechanism 5: It includes guide rods 58 and slide bars 59. Symmetrical guide rods 58 are fixedly connected to the front interior of the mounting plate 1. Slide bars 59 are slidably connected to the outside of the guide rods 58. A horizontal bar 6 is fixedly connected to the upper side between the front ends of the two slide bars 59. Symmetrical slide rods 8 are fixedly connected to the upper end of the horizontal bar 6. A chin rest 9 is slidably connected between the middle of the two slide rods 8. A forehead support strap 10 is fixedly connected between the upper ends of the two slide rods 8. Distance adjustment mechanism 5 also includes a vertical plate 54, a rotating rod 55, a rack 56, and a gear 57. Symmetrical vertical plates 54 are fixedly connected to the front of the bottom wall of the mounting plate 1. A rotating rod 55 is rotatably connected between the two vertical plates 54. Gears 57 are fixedly connected to the left and right ends of the rotating rod 55. A rack 56 is provided at the lower end of the inner side of the slide bar 59. The rack 56 meshes with the vertically adjacent gears 57. Distance adjustment mechanism 5 also includes a worm gear 52 and a worm wheel. 53. A worm gear 53 is fixedly sleeved in the middle of the rotating rod 55. The lower end of the worm 52 is rotatably connected to the bottom wall of the mounting plate 1. The distance adjustment mechanism 5 also includes a motor 51. The motor 51 is set at the lower end of the mounting plate 1. The upper end of the output shaft of the motor 51 is fixedly connected to the lower end of the worm 52. The input end of the motor 51 is electrically connected to the output end of the control switch group 4. When it is necessary to adjust the distance between the patient and the detector 3, the motor 51 is operated by controlling the control switch group 4. The output shaft of the motor 51 drives the worm 52 to rotate. The rotation of the worm 52 will drive the meshing worm gear 53 to rotate. The rotation of the worm gear 53 will drive the rotating rod 55 to rotate. The rotation of the rotating rod 55 will drive the gears 57 at both ends to rotate. The rotation of the gears 57 will drive the slide bar 59 to move back and forth on the adjacent guide rod 58 through the meshing rack 56, thereby driving the horizontal bar 6 to move back and forth. The horizontal bar 6 will drive the cheek rest 9 and the forehead support strap 10 to move back and forth.

[0025] Lifting mechanism 7: It includes a U-shaped slider 73, a connecting rod 74, and a U-shaped block 75. The interior of the horizontal bar 6 is slidably connected to symmetrically arranged U-shaped sliders 73. The lower end of the cheek rest 9 is provided with symmetrically arranged U-shaped blocks 75. Connecting rods 74 are rotatably connected between the upper ends of the U-shaped sliders 73 and the vertically adjacent U-shaped blocks 75. Lifting mechanism 7 also includes a bidirectional lead screw 72. A bidirectional lead screw 72 is rotatably connected between the left and right inner walls of the horizontal bar 6. The left and right ends of the bidirectional lead screw 72 are threadedly connected to the threaded holes at the lower ends of the vertically adjacent U-shaped sliders 73. Lifting mechanism 7 also includes a second motor 71, which is located at the right end of the horizontal bar 6. The left end of the output shaft of the second motor 71 is connected to the bidirectional lead screw... The right end of rod 72 is fixedly connected, and the input end of motor 71 is electrically connected to the output end of control switch group 4. When the height of the cheek rest 9 needs to be adjusted, control switch group 4 is adjusted, 71 operates, and the output shaft of motor 71 drives the bidirectional lead screw 72 to rotate. The rotation of bidirectional lead screw 72 will drive the threaded U-shaped slider 73 to move inside the crossbar 6. When the two U-shaped sliders 73 move away from each other, the movement of U-shaped sliders 73 will drive the cheek rest 9 to move upward between the slide bars 8 through connecting rod 74 and U-shaped block 75. When the two U-shaped sliders 73 move towards each other, the movement of U-shaped sliders 73 will drive the cheek rest 9 to move downward between the slide bars 8 through connecting rod 74 and U-shaped block 75.

[0026] The working principle of the easily adjustable slit lamp provided by this utility model is as follows: When using the slit lamp, the patient places their chin on the upper end of the chin rest 9, and their forehead contacts the forehead rest strap 10. The distance between the patient and the detector 3 is then monitored. When adjustment of the distance between the patient and the detector 3 is required, the control switch group 4 is activated, and motor 51 operates. The output shaft of motor 51 drives the worm gear 52 to rotate. The rotation of the worm gear 52 drives the meshing worm wheel 53 to rotate. The rotation of the worm wheel 53 drives the rotating rod 55 to rotate. The rotation of the rotating rod 55 drives the gears 57 at both ends to rotate. The rotation of the gears 57, through the meshing rack 56, drives the slide bar 59 to move back and forth on the adjacent guide rod 58. The movement of the horizontal bar 6 causes the horizontal bar 6 to move back and forth, which in turn causes the chin rest 9 and forehead support strap 10 to move back and forth. When the height of the chin rest 9 needs to be adjusted, the control switch group 4 is adjusted, and the motor 71 is activated. The output shaft of the motor 71 drives the bidirectional lead screw 72 to rotate. The rotation of the bidirectional lead screw 72 will drive the threaded U-shaped slider 73 to move inside the horizontal bar 6. When the two U-shaped sliders 73 move away from each other, the movement of the U-shaped sliders 73 will drive the chin rest 9 to move upward between the slide bars 8 through the connecting rod 74 and the U-shaped block 75. When the two U-shaped sliders 73 move towards each other, the movement of the U-shaped sliders 73 will drive the chin rest 9 to move downward between the slide bars 8 through the connecting rod 74 and the U-shaped block 75.

[0027] It is worth noting that the motor 51 and motor 71 disclosed in the above embodiments can both be YJ61. The control switch group 4 is provided with switch buttons corresponding to motor 51 and motor 71 for controlling their switching operation.

[0028] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent structural or procedural transformations made based on the description and drawings of this utility model, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. An easily adjustable slit lamp, comprising a mounting plate (1), wherein an operating platform (2) is provided on the upper rear side of the mounting plate (1), and a detector (3) is provided on the upper end of the operating platform (2), characterized in that: It also includes a distance adjustment mechanism (5) and a lifting mechanism (7); Distance adjustment mechanism (5): It includes a guide rod (58) and a slider (59). The front side of the mounting plate (1) is fixedly connected with a left-right symmetrical guide rod (58). The outside of the guide rod (58) is slidably connected with a slider (59). A horizontal bar (6) is fixedly connected to the upper side between the front ends of the two sliders (59). The upper end of the horizontal bar (6) is fixedly connected with a left-right symmetrical slider (8). A chin support (9) is slidably connected between the middle parts of the two sliders (8). A forehead support strap (10) is fixedly connected between the upper ends of the two sliders (8). Lifting mechanism (7): It includes a U-shaped slider (73), a connecting rod (74) and a U-shaped block (75). The inside of the horizontal bar (6) is slidably connected to the left and right symmetrical U-shaped slider (73). The lower end of the cheek rest (9) is provided with a left and right symmetrical U-shaped block (75). The upper ends of the U-shaped slider (73) and the vertically adjacent U-shaped block (75) are respectively rotatably connected to the connecting rod (74).

2. The easily adjustable slit lamp according to claim 1, characterized in that: The mounting plate (1) is provided with a control switch group (4) on its exterior. The input end of the control switch group (4) is electrically connected to the output end of an external power supply.

3. The easily adjustable slit lamp according to claim 2, characterized in that: The distance adjustment mechanism (5) also includes a vertical plate (54), a rotating rod (55), a rack (56) and a gear (57). The bottom wall of the mounting plate (1) is fixedly connected to a vertical plate (54) that is symmetrically arranged on the left and right. A rotating rod (55) is rotatably connected between the two vertical plates (54). The left and right ends of the rotating rod (55) are respectively fixedly connected to gears (57). The lower end of the inner side of the slide bar (59) is provided with a rack (56), and the rack (56) is meshed with the vertically adjacent gears (57).

4. The easily adjustable slit lamp according to claim 3, characterized in that: The distance adjustment mechanism (5) also includes a worm (52) and a worm wheel (53). The worm wheel (53) is fixedly sleeved in the middle of the rotating rod (55), and the lower end of the worm (52) is rotatably connected to the bottom wall of the mounting plate (1).

5. The easily adjustable slit lamp according to claim 4, characterized in that: The distance adjustment mechanism (5) also includes a motor (51), which is located at the lower end of the mounting plate (1). The upper end of the output shaft of the motor (51) is fixedly connected to the lower end of the worm (52), and the input end of the motor (51) is electrically connected to the output end of the control switch group (4).

6. The easily adjustable slit lamp according to claim 2, characterized in that: The lifting mechanism (7) also includes a two-way lead screw (72), which is rotatably connected between the left and right inner walls of the crossbar (6). The left and right ends of the two-way lead screw (72) are respectively threaded to the threaded holes at the lower ends of the vertically adjacent U-shaped slider (73).

7. The easily adjustable slit lamp according to claim 6, characterized in that: The lifting mechanism (7) also includes a second motor (71), which is located at the right end of the horizontal bar (6). The left end of the output shaft of the second motor (71) is fixedly connected to the right end of the bidirectional lead screw (72), and the input end of the second motor (71) is electrically connected to the output end of the control switch group (4).

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