Linear drive structure, adjustable support and fissure training device assembly

Abstract

This utility model discloses a linear drive structure, an adjustable support, and a slit scale trainer assembly. It includes a hollow slide table, a slider disposed within the hollow slide table, and a strip-shaped slot formed on the hollow slide table. The upper end of the slider extends through the slot to the outside of the hollow slide table and is connected to a mounting bracket for selectively mounting a target plate or a perforated plate. A first lead screw, cooperating with the slider, passes through the slide table, and receives rotational power via a crank handle. This utility model introduces a linear drive structure that allows for quick and precise adjustment of the target plate or perforated plate by rotating the crank handle, simplifying the operation process and improving training efficiency. Simultaneously, it demonstrates an adjustable support; the pitch angle of the mounting bracket can be adjusted by turning the operating handwheel with one hand, adapting to different user needs and adjusting the target plate and perforated plate to the optimal observation position. The ultimate goal is to provide a slit scale trainer assembly that combines the advantages of a linear drive structure and an adjustable support.

Description

Technical Field

[0001] This utility model relates to the technical field of stereoscopic vision training, specifically to a linear drive structure, an adjustable support, and a slit ruler trainer assembly. Background Technology

[0002] Stereoscopic vision is an advanced visual ability possessed by humans and higher animals. The reconstruction of stereoscopic vision after strabismus surgery is increasingly becoming a focus for ophthalmologists and a key indicator of successful strabismus treatment. Therefore, strabismus treatment is not limited to eye alignment correction; more importantly, it involves the restoration of binocular visual function post-surgery. Currently, slit ruler trainers are widely used for the restoration of binocular visual function after intermittent exotropia surgery.

[0003] Traditional gap gauge trainers consist of a base, a strip rail, a visual target plate, a perforated plate, and a connecting rod that links the base and the strip rail. One or both ends of the connecting rod are usually bolted together. By loosening these bolts, the angle between the two connecting parts can be adjusted, allowing the strip rail to be positioned for easy observation by the user.

[0004] However, when using a slit ruler trainer for visual training, the target plate and perforated plate need to be pre-adjusted to the corresponding positions on the strip guide rail. Currently, this is generally done by the user directly moving the target plate and perforated plate, and then using screws to position them after adjustment. This operation is not only cumbersome, but also makes it difficult to guarantee the adjustment accuracy of the target plate and perforated plate. On the other hand, in order to adjust the strip guide rail to an angle that is easy for the user to observe, the bolts need to be loosened first, and then the tilt angle needs to be adjusted by moving the strip guide rail or connecting rod. Finally, the bolts need to be tightened again. This operation is time-consuming and laborious, and it is not convenient for the user to operate with one hand. Utility Model Content

[0005] This invention first introduces a linear drive structure that allows for rapid and precise adjustment of the target plate or perforation plate via a rotating handle, thereby simplifying the operation process and improving training efficiency. Secondly, this invention also demonstrates an adjustable support; by turning the operating handwheel with one hand, the user can easily adjust the pitch angle of the mounting bracket, allowing different users to adjust the target plate and perforation plate, respectively mounted on the two sets of linear drives, to the optimal observation position according to their individual needs. Finally, the purpose of this invention is to provide a slit ruler trainer assembly that integrates the advantages of a linear drive structure and an adjustable support, aiming to solve the problems existing in the prior art.

[0006] To achieve the above objectives, this utility model first discloses a technical solution: a linear drive structure, the key of which is: a hollow slide table, a slider disposed in the hollow slide table, and a strip-shaped slot formed on the hollow slide table. The upper end of the slider extends to the outside of the hollow slide table through the slot and is connected to a mounting bracket for selectively installing a target plate or a perforated plate. A first lead screw cooperating with the slider also passes through the slide table. The first lead screw receives rotational power through a crank handle to adjust the position of the mounting bracket in the length direction of the hollow slide table.

[0007] Furthermore, the end of the first lead screw is connected to the crank handle via a worm gear reduction assembly.

[0008] Furthermore, the slide is also equipped with a limiting strip and a flexible retaining ball that are adapted to the retaining seat.

[0009] Secondly, this utility model also discloses an adjustable support, the key of which is: it includes a base and a snap-fit ​​seat rotatably connected to the base. The snap-fit ​​seat can be adapted to two sets of linear drive structures at the same time to ensure that the two are snapped into place on the same straight line. A pitch angle adjustment structure is also provided between the snap-fit ​​seat and the base.

[0010] Furthermore, the pitch angle adjustment structure includes a slide rail arranged along the length of the base, a sliding seat arranged on the slide rail, a connecting arm hinged to the upper end of the sliding seat, the end of the connecting arm hinged to the snap-fit ​​seat, and a second lead screw cooperating with the sliding seat passing through the slide rail, one end of the second lead screw receiving rotational power through a handwheel.

[0011] Finally, this utility model also provides a gap ruler training device assembly, the key feature of which is: it includes the adjustable support described above, and two sets of linear drive structures described above are snapped onto the adjustable support along the same straight line.

[0012] Furthermore, one set of linear drive structures serves as a target plate driver, mounting the target plate on its mounting frame, while the other set of linear drive structures serves as a perforated plate driver, mounting the perforated plate on its mounting frame.

[0013] Furthermore, a target plate adjustment indicator is provided on the linear drive structure that drives the target plate, and an orifice plate adjustment indicator is provided on the linear drive structure that drives the orifice plate.

[0014] Furthermore, each of the linear drive structures is provided with a target plate adjustment indicator and a perforated plate adjustment indicator.

[0015] Compared with the prior art, the significant advantages of this utility model are:

[0016] 1. The linear drive structure not only improves the adjustment accuracy of the target plate and the perforated plate, but also simplifies the tedious operation in the adjustment process, which helps to ensure the accuracy of visual training and improves the overall work efficiency.

[0017] 2. By utilizing the precise control function of the worm gear reduction assembly, fine control of the crank handle rotation is achieved, which makes the fine-tuning operation of the sight plate and the orifice plate more convenient and greatly improves the ease of operation;

[0018] 3. The use of limit bars and elastic ball bearings not only facilitates assembly and positioning but also ensures the stability and reliability of the slider in the linear drive structure, effectively preventing accidental slippage and enhancing the safety performance of the equipment.

[0019] 4. The adjustable mount's pitch angle adjustment mechanism allows users to quickly adjust the observation angle of the target plate and orifice plate according to their individual needs. This design significantly improves the flexibility and adaptability of the equipment. When adjusting the pitch angle, the user only needs to turn the handwheel to easily complete the operation. This allows the user to maintain the optimal observation position while adjusting the pitch angle of the mount with one hand, thus conveniently obtaining a suitable viewing angle.

[0020] 5. The slit ruler trainer assembly adopts a split structure design, which makes the assembly and disassembly process simple and quick, and easy to carry and store, thus meeting the user's need for portability;

[0021] 6. The setting of adjustment indicators for the sight plate and perforated plate provides users with a clear and intuitive adjustment reference, which not only simplifies the operation process but also improves the accuracy and efficiency of the operation;

[0022] 7. The slit ruler trainer assembly of this utility model can provide a more precise and convenient training method in the binocular visual function recovery training after strabismus surgery. This innovative design helps to improve the treatment effect and brings good news to patients. Attached Figure Description

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments. In the accompanying drawings:

[0024] Figure 1 This is a schematic diagram of the overall structure of the linear drive structure in Embodiment 1 (I);

[0025] Figure 2 This is a schematic diagram of the overall structure of the linear drive structure in Embodiment 1 (II);

[0026] Figure 3 This is a schematic diagram of the internal structure of the linear drive structure in Embodiment 1 (I);

[0027] Figure 4This is a schematic diagram (II) of the internal structure of the linear drive structure in Embodiment 1;

[0028] Figure 5 This is a schematic diagram (III) of the internal structure of the linear drive structure in Embodiment 1;

[0029] Figure 6 This is a schematic diagram of the overall structure of the adjustable support in Embodiment 2 (I);

[0030] Figure 7 This is a schematic diagram of the overall structure of the adjustable support in Embodiment 2 (II);

[0031] Figure 8 This is a schematic diagram of the overall structure of the slit ruler trainer assembly in Embodiment 3 (I);

[0032] Figure 9 This is a schematic diagram of the overall structure of the slit ruler training device assembly in Example 3 (II);

[0033] Figure 10 This is a schematic diagram of the overall structure of the slit ruler trainer assembly in Embodiment 4;

[0034] Figure 11 This is a schematic diagram of the overall structure of the linear drive structure in Embodiment 5;

[0035] The diagram is labeled as follows: 1-Linear drive structure, 101-Hollow slide, 102-Slider, 103-Strip groove, 104-Mounting bracket, 105-First lead screw, 106-Crank handle, 107-Worm gear reducer assembly, 108-Limiting strip, 109-Elastic ball.

[0036] 2-Adjustable support, 201-Base, 202-Snap-fit ​​seat, 203-Pitch adjustment structure, 2031-Slide rail, 2032-Sliding seat, 2033-Connecting arm, 2034-Second lead screw, 2035-Handwheel;

[0037] 3- Gap ruler trainer assembly, 301- Visual target plate, 302- Perforated plate, 303- Visual target plate adjustment indicator, 304- Perforated plate adjustment indicator. Detailed Implementation

[0038] To make the technical problems, technical solutions and advantages of this utility model clearer, a detailed description will be given below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely for explaining this utility model and are not intended to limit this utility model.

[0039] In the description of this utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, in the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0040] Figures 1 to 5 The first embodiment of the present invention is shown: a linear drive structure 1, including a hollow slide table 101, a slider 102 disposed in the hollow slide table 101, and a strip-shaped slot 103 formed on the hollow slide table 101. The upper end of the slider 102 extends to the outside of the hollow slide table 101 through the slot and is connected to a mounting bracket 104 for selectively mounting a target plate 301 or a perforated plate 302. A first lead screw 105 cooperating with the slider 102 also passes through the slide table. The first lead screw 105 receives rotational power through a crank handle 106 to adjust the position of the mounting bracket 104 in the length direction of the hollow slide table 101.

[0041] like Figures 3 to 5 As shown, in a specific implementation, the end of the first lead screw 105 is connected to the crank handle 106 via a worm gear reduction assembly 107. The slide table is also equipped with a limiting strip 108 and elastic retaining balls adapted to the retaining seat 202.

[0042] In this embodiment, the threaded portion of the first lead screw 105 is precision machined to ensure smooth movement and accurate positioning of the slider 102. The introduction of the worm gear reducer assembly 107 not only reduces the rotational torque of the crank handle 106 but also improves the stability of the lead screw rotation, thus making fine-tuning of the mounting bracket 104 possible. The setting of the limit strip 108 and the elastic ball further ensures the stability and reliability of the limit during the movement of the slide table. Through these designs, the linear drive structure 1 of this utility model not only ensures ease of operation but also greatly improves the stability and accuracy during use.

[0043] Figure 6 and Figure 7The second embodiment of the present invention is shown: an adjustable support 2, including a base 201 and a snap-fit ​​seat 202 rotatably connected to the base 201. The snap-fit ​​seat 202 can be adapted to two sets of linear drive structures 1 described above at the same time to ensure that the two are snapped into place on the same straight line. A pitch angle adjustment structure 203 is also provided between the snap-fit ​​seat 202 and the base 201.

[0044] like Figure 7 As shown, in a specific implementation, the pitch angle adjustment structure 203 includes a slide rail 2031 arranged along the length direction of the base. A sliding seat 2032 is provided on the slide rail 2031. A connecting arm 2033 is hinged to the upper end of the sliding seat 2032. The end of the connecting arm 2033 is hinged to the snap-fit ​​seat 202. A second lead screw 2034 that cooperates with the sliding seat 2032 also passes through the slide rail 2031. One end of the second lead screw 2034 receives rotational power through a handwheel 2035.

[0045] Figures 8 to 9 The third embodiment of the present invention is shown: a gap ruler training device assembly 3, including the adjustable support 2 described above, on which two sets of linear drive structures 1 described above are snapped along the same straight line.

[0046] Figure 10 The illustration shows a fourth embodiment of the present invention: Based on this, compared to embodiment three, an adjustment indicator 303 is added to the linear drive structure 1 driven by the target plate 301, and an adjustment indicator 304 is added to the linear drive structure 1 driven by the perforated plate 302. The adjustment indicators of the target plate 301 and the perforated plate 302 include scale lines and markers. Through these scale lines and markers, the user can intuitively understand the current position of the target plate 301 and the perforated plate 302 and make precise adjustments. This design not only simplifies the operation process but also improves the accuracy and efficiency of the operation. Through the slit ruler trainer assembly 3 of the present invention, more precise and convenient methods can be provided in the binocular visual function recovery training after strabismus surgery.

[0047] Figure 11 A fifth embodiment of the present invention is shown: Compared to the previous embodiment, each set of linear drive structures 1 is provided with a target plate adjustment indicator 303 and a perforated plate adjustment indicator 304. When the target plate 301 is installed on the mounting bracket 104, the user can adjust its position according to the adjustment indicator on the target plate 301. If the perforated plate 302 is installed, its position can also be set according to the perforated plate 302 adjustment indicator. The advantage of this method is that there is no need to clearly distinguish between the two sets of linear drive structures 1; whether the perforated plate 302 or the target plate 301 is installed, it will not affect its function.

[0048] In summary, the linear drive structure 1 of this invention not only improves the adjustment accuracy of the target plate 301 and the perforated plate 302, but also simplifies the cumbersome operation during the adjustment process, helping to ensure the accuracy of visual training and improving overall work efficiency. Utilizing the precise control function of the worm gear reducer assembly 107, fine control of the crank handle 106 rotation is achieved, making the fine-tuning of the target plate 301 and the perforated plate 302 more convenient and greatly improving operational ease. The limiting clip 108 and elastic ball not only facilitate assembly and positioning but also ensure the stability and reliability of the slider 102 within the linear drive structure 1, effectively preventing accidental slippage and enhancing the safety performance of the equipment. The adjustable support 2's pitch angle adjustment mechanism allows users to quickly adjust the observation angle of the target plate 301 and the perforated plate 302 according to their individual needs. This design significantly improves the flexibility and adaptability of the equipment. When adjusting the pitch angle, the user only needs to turn the handwheel 2035 to easily complete the operation. This allows users to adjust the pitch angle of the mounting bracket 202 with one hand while maintaining the optimal observation position, thus easily obtaining a suitable viewing angle. The slit ruler trainer assembly 3 adopts a split structure design, making assembly and disassembly simple and quick, and easy to carry and store, thereby meeting users' needs for portability. The setting of the optotype plate adjustment indicator 303 and the perforation plate adjustment indicator 304 provides users with clear and intuitive adjustment references, which not only simplifies the operation process but also improves the accuracy and efficiency of operation. The slit ruler trainer assembly 3 of this utility model can provide a more precise and convenient training method in the binocular visual function recovery training after strabismus surgery. This innovative design helps to improve the treatment effect and brings good news to patients.

[0049] Finally, it should be noted that the technical solutions disclosed above are only a preferred embodiment of this utility model, and should not be construed as limiting the scope of this utility model. Those skilled in the art can understand that implementing all or part of the processes of the above embodiments and making equivalent changes in accordance with the claims of this utility model still fall within the scope of this utility model.

Claims

1. A linear drive structure, characterized in that: The device includes a hollow slide table, a slider disposed within the hollow slide table, and a strip-shaped slot formed on the hollow slide table. The upper end of the slider extends through the slot to the outside of the hollow slide table and is connected to a mounting bracket for selectively mounting a target plate or a perforated plate. A first lead screw that cooperates with the slider also passes through the slide table. The first lead screw receives rotational power through a crank handle to adjust the position of the mounting bracket along the length of the hollow slide table.

2. The linear drive structure according to claim 1, characterized in that: The end of the first lead screw is connected to the crank handle via a worm gear reduction assembly.

3. The linear drive structure according to claim 1 or 2, characterized in that: The slide is also equipped with a limiting strip and a flexible locking ball that are compatible with the locking seat.

4. An adjustable support, characterized in that: The device includes a base and a snap-fit ​​connector rotatably connected to the base. The snap-fit ​​connector can be adapted to two sets of linear drive structures as described in any one of claims 1-3 to ensure that the two are snapped into place on the same straight line. A pitch angle adjustment structure is also provided between the snap-fit ​​connector and the base.

5. The adjustable support according to claim 4, characterized in that: The pitch angle adjustment structure includes a slide rail arranged along the length of the base, a sliding seat arranged on the slide rail, a connecting arm hinged to the upper end of the sliding seat, the end of the connecting arm hinged to the snap-fit ​​seat, and a second lead screw cooperating with the sliding seat passing through the slide rail, one end of the second lead screw receiving rotational power through a handwheel.

6. A slit ruler training device assembly, characterized in that: Includes the adjustable support as described in claim 4 or 5, wherein two sets of linear drive structures as described in any one of claims 1-3 are snapped onto the adjustable support along the same straight line.

7. The slit ruler training device assembly according to claim 6, characterized in that: One set of linear drive structures drives the target plate and mounts it on its mounting bracket, while the other set of linear drive structures drives the perforated plate and mounts it on its mounting bracket.

8. The slit ruler training device assembly according to claim 7, characterized in that: A target plate adjustment indicator is provided on the linear drive structure that drives the target plate, and an orifice plate adjustment indicator is provided on the linear drive structure that drives the orifice plate.

9. The slit ruler training device assembly according to claim 7 or 8, characterized in that: Each of the linear drive structures is equipped with a target plate adjustment indicator and a perforated plate adjustment indicator.

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