An ophthalmic automated platform shaft locking mechanism

Abstract

The utility model belongs to the technical field of ophthalmic medical instruments, disclose a kind of ophthalmic automatic platform shaft locking mechanism, including fixed base, its upper surface one side fixed mounting mount, the output shaft end of mount is fixedly installed screw rod, the other side fixed mounting motor is installed on the upper surface of fixed base, the screw rod is rotated and is connected in the inside of connecting hole far from mount side, locking block is slidably connected in the inner wall of mount, the lower end of the inner wall of mount is hinged with the lever, the upper end of the lever is in contact with the lower wall of locking block, the utility model proposes a kind of ophthalmic automatic platform shaft locking mechanism, by pushing lever, in the process of lever rotation, its upper end is extruded to the lower wall of locking block, the lower wall of locking block is forced to move upward, so as to be pressed by the outer wall of screw rod by the upper end of locking block, so as to lock the automatic platform shaft, so as to greatly reduce the equipment shaft jamming phenomenon by absorbing equipment impact, greatly reduce equipment failure and after-sales cost, improve customer satisfaction.

Description

Technical Field

[0001] This utility model belongs to the field of ophthalmic medical device technology, specifically an ophthalmic automatic platform axis locking mechanism. Background Technology

[0002] An optometry instrument examines the convergence of light after it enters the eye. Using emmetropia (normal vision) as a standard, it measures the difference in convergence and divergence between the tested eye and a normal eye. The optometry instrument has a built-in light source, usually an LED, which projects light onto the subject's pupil through a complex lens system. This light passes through the cornea and lens of the eye and focuses on the retina. Upon reaching the retina, some light is reflected back. The optometry instrument captures these reflected lights and analyzes their path changes. If the eye has a refractive error, the path of the reflected light will be deviated. The instrument has an automatic adjustment mechanism that adjusts its lens group according to the changes in reflected light to simulate the effect of different prescription glasses. By continuously adjusting until the path of the reflected light returns to normal (i.e., the light spot becomes the clearest), the instrument can calculate the required correction power for the subject's eye.

[0003] For example, the integrated wire harness with publication number CN218159749U includes a strap, the inner sidewall of which is uniformly provided with a multi-axis motion platform for controlling optical platforms. Currently, ophthalmic diagnostic and therapeutic instruments have a very wide application prospect. Multi-axis platforms are increasingly used to control optical platforms. Multi-axis platforms are prone to jamming and seizing during transportation, which greatly increases the occurrence of product failures. Therefore, there is an urgent need for a universal, low-cost, automatic ophthalmic platform axis locking mechanism. Utility Model Content

[0004] The purpose of this utility model is to solve the above problems by providing an ophthalmic automatic platform axis locking mechanism, comprising:

[0005] A fixed base has a mounting seat fixedly installed on one side of its upper surface. A lead screw is fixedly installed at the end of the output shaft of the mounting seat. A motor is fixedly installed on the other side of the upper surface of the fixed base. A connection hole is opened on one side of the motor. The lead screw is rotatably connected to the inside of the connection hole on the side away from the mounting seat. The inner wall of the mounting seat is slidably connected to a locking block. A lever is hinged to the lower end of the inner wall of the mounting seat. The upper end of the lever contacts the lower wall of the locking block.

[0006] Through the above technical solution, by pushing the lever, the upper end of the lever squeezes the lower wall of the locking block during the rotation process. The lower wall of the locking block moves upward under the force, thereby pressing the outer wall of the lead screw through the upper end of the locking block, thus locking the automatic platform shaft. This absorbs equipment impact, greatly reduces the phenomenon of equipment shaft jamming, significantly reduces equipment failure and after-sales costs, and improves customer satisfaction.

[0007] In a preferred embodiment, a return spring is fixedly installed between the inner wall of the mounting base and the locking block.

[0008] With the above technical solution, when the lever is reset, the locking block is automatically reset by the rebound force of the reset spring.

[0009] In a preferred embodiment, the upper end of the locking block has an arc-shaped structure.

[0010] The above technical solution allows the upper end of the locking block to fit tightly against the outer wall of the platform shaft, thus improving its locking effect.

[0011] In a preferred embodiment, multiple fixed seats are fixedly installed on both the left and right sides of the upper surface of the fixed base, a guide rod is fixedly installed between two fixed seats located on the same side, a slider is slidably connected between the two guide rods, and the lead screw is threadedly connected to the slider.

[0012] With the above technical solution, when using the ophthalmic automatic platform, the motor drives the lead screw to rotate, and the lead screw rotates to move the slider back and forth. By setting a guide rod, the slider always moves along a straight line.

[0013] In a preferred embodiment, the upper end of the lever has an eccentric structure.

[0014] In a preferred embodiment, the lever protrudes from the lower end of the fixed base.

[0015] The above technical solution facilitates the movement of the lever.

[0016] In summary, due to the adoption of the above technical solutions, the beneficial effects of this utility model are: this utility model proposes an ophthalmic automatic platform axis locking mechanism.

[0017] By pushing the lever, the upper end of the lever presses against the lower wall of the locking block during the rotation process. The lower wall of the locking block moves upward under the force, thereby pressing against the outer wall of the lead screw through the upper end of the locking block, thus locking the automatic platform shaft. This absorbs equipment impact, greatly reduces the phenomenon of equipment shaft jamming, significantly reduces equipment failure and after-sales costs, and improves customer satisfaction. Attached Figure Description

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

[0019] Figure 2 This is a top view of the present invention;

[0020] Figure 3 This is a cross-sectional view of the mounting base in this utility model.

[0021] The markings in the diagram are: 1-fixed base; 2-mounting seat; 3-motor; 4-lead screw; 5-connecting hole; 6-reset spring; 7-locking block; 8-lever; 9-fixed seat; 10-guide rod; 11-slider. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below in conjunction with the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0023] The following will combine Figure 1-3 A detailed description of an ophthalmic automatic platform axis locking mechanism according to an embodiment of the present invention is provided.

[0024] Example:

[0025] An ophthalmic automated platform axis locking mechanism includes:

[0026] A fixed base 1 has a mounting seat 2 fixedly installed on one side of its upper surface. A lead screw 4 is fixedly installed at the end of the output shaft of the mounting seat 2. A motor 3 is fixedly installed on the other side of the upper surface of the fixed base 1. A connection hole 5 is opened on one side of the motor 3. The lead screw 4 is rotatably connected to the inside of the connection hole 5 on the side away from the mounting seat 2. Multiple fixed seats 9 are fixedly installed on both the left and right sides of the upper surface of the fixed base 1. A guide rod 10 is fixedly installed between two fixed seats 9 located on the same side. A slider 11 is slidably connected between two guide rods 10. The lead screw 4 is threadedly connected to the slider 11. When using the ophthalmic automatic platform, the motor 3 drives the lead screw 4 to rotate. During the rotation of the lead screw 4, the slider 11 moves back and forth. By setting the guide rod 10, the slider 11 always moves along a straight line.

[0027] The inner wall of the mounting base 2 is slidably connected to the locking block 7. The upper end of the locking block 7 has an arc-shaped structure, which allows the upper end of the locking block 7 to fit tightly against the outer wall of the platform shaft, improving its locking effect. The lower end of the inner wall of the mounting base 2 is hinged to a lever 8. The upper end of the lever 8 has an eccentric structure. The upper end of the lever 8 contacts the lower wall of the locking block 7. By pushing the lever 8, its upper end squeezes the lower wall of the locking block 7 during the rotation process. The lower wall of the locking block 7 moves upward under force, thereby pressing the outer wall of the lead screw 4 through the upper end of the locking block 7, thus locking the automatic platform shaft. This absorbs equipment impact, greatly reduces the phenomenon of equipment shaft jamming, greatly reduces equipment failure and after-sales costs, and improves customer satisfaction.

[0028] A return spring 6 is fixedly installed between the inner wall of the mounting base 2 and the locking block 7. When the lever 8 is reset, the locking block 7 is automatically reset by the rebound force of the return spring 6, and the lever 8 protrudes from the lower end of the fixed base 1, making it easy to push the lever 8.

[0029] Working principle:

[0030] By pushing the lever 8, its upper end presses against the lower wall of the locking block 7 during the rotation of the lever 8. The lower wall of the locking block 7 moves upward under the force, thereby pressing against the outer wall of the lead screw 4 through the upper end of the locking block 7, thus locking the automatic platform shaft. This absorbs the impact of the equipment, greatly reduces the phenomenon of equipment shaft jamming, greatly reduces equipment failure and after-sales costs, and improves customer satisfaction.

[0031] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. An ophthalmic automatic platform axis locking mechanism, characterized in that: include: A fixed base (1) has a mounting seat (2) fixedly installed on one side of its upper surface. A lead screw (4) is fixedly installed at the end of the output shaft of the mounting seat (2). A motor (3) is fixedly installed on the other side of the upper surface of the fixed base (1). A connecting hole (5) is opened on one side of the motor (3). The lead screw (4) is rotatably connected to the inside of the connecting hole (5) on the side away from the mounting seat (2). The inner wall of the mounting seat (2) is slidably connected to the locking block (7). A lever (8) is hinged to the lower end of the inner wall of the mounting seat (2). The upper end of the lever (8) is in contact with the lower wall of the locking block (7).

2. The ophthalmic automatic platform axis locking mechanism as described in claim 1, characterized in that: A return spring (6) is fixedly installed between the inner wall of the mounting base (2) and the locking block (7).

3. The ophthalmic automatic platform axis locking mechanism as described in claim 1, characterized in that: The upper end of the locking block (7) has an arc-shaped structure.

4. The ophthalmic automatic platform axis locking mechanism as described in claim 1, characterized in that: Multiple fixed seats (9) are fixedly installed on both the left and right sides of the upper surface of the fixed base (1). A guide rod (10) is fixedly installed between two fixed seats (9) located on the same side. A slider (11) is slidably connected between the two guide rods (10). The lead screw (4) is threadedly connected to the slider (11).

5. The ophthalmic automatic platform axis locking mechanism as described in claim 1, characterized in that: The upper end of the lever (8) has an eccentric structure.

6. The ophthalmic automatic platform axis locking mechanism as described in claim 1, characterized in that: The lever (8) protrudes from the lower end of the fixed base (1).

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