Liftable vision screening instrument

Abstract

The utility model relates to the field of detection equipment, and discloses a liftable vision screening instrument which comprises a bottom plate, the top of a fixing block is fixedly connected with a telescopic rod, the top of the telescopic rod is fixedly connected with a mounting seat, the top of the mounting seat is slidably connected with a screening instrument, and an embedding groove is formed in the middle of the top side of the mounting seat. The bottom of the screening instrument is fixedly connected with a connecting block, the connecting block is slidably connected into the embedding groove, the multiple sleeve rods are fixedly connected to the four corners of the top side of the bottom plate correspondingly, reset springs are fixedly connected to the inner sides of the multiple sleeve rods correspondingly, and connecting rods are fixedly connected to the tops of the multiple reset springs correspondingly; the tops of the multiple connecting rods are fixedly connected to the four corners of the bottom of the mounting base correspondingly. According to the utility model, through the mutual cooperation of the fixed block, the telescopic rod, the mounting seat and the screening instrument, the heights of different people are different, and the height of the vision screening instrument is adjusted, so that a user can be ensured to be at the most comfortable position during vision examination.

Description

Technical Field

[0001] The utility model relates to the field of detection equipment, in particular to a liftable vision screening instrument. Background Art

[0002] Myopia (also known as nearsightedness or myopia) is a common refractive error in the eye that causes distant objects to appear blurry while nearby objects can be seen clearly. Vision screeners can help detect vision problems in patients at an early stage, including myopia, hyperopia, astigmatism, etc. Through timely screening, visual abnormalities in children or adults can be detected and corrected in advance, helping to prevent further development of vision problems.

[0003] In the prior art, most vision screening devices do not have a lifting function. People have different heights. Especially when using vision screening devices in medical, school or public places, the lack of a lifting function will make it difficult for some people to adapt to the height of the device, affecting the accuracy of the screening and the comfort of the user. Therefore, a liftable vision screening device is proposed to solve the above problem. Utility Model Content

[0004] In order to remedy the above deficiencies, the utility model provides a liftable vision screening instrument, which aims to improve the problem that the height of the vision screening instrument in the prior art cannot adapt to people of different heights, which will affect the accuracy of the vision test.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a liftable vision screening instrument, comprising a base plate, support components are arranged at the four corners of the top of the base plate, a fixed block is fixedly connected to the middle of the top side of the base plate, a telescopic rod is fixedly connected to the top of the fixed block, a mounting seat is fixedly connected to the top of the telescopic rod, a snap assembly is arranged inside the front and rear sides of the mounting seat, a screening instrument is slidably connected to the top of the mounting seat, an engaging groove is opened in the middle of the top side of the mounting seat, a connecting block is fixedly connected to the bottom of the screening instrument, and the connecting block is slidably connected in the engaging groove.

[0006] Furthermore, the support assembly includes a plurality of sleeve rods, which are respectively fixedly connected to the four corners of the top side of the base plate, the inner sides of the plurality of sleeve rods are fixedly connected with return springs, the tops of the plurality of return springs are fixedly connected with connecting rods, and the tops of the plurality of connecting rods are respectively fixedly connected to the four corners of the bottom of the mounting seat.

[0007] Furthermore, the buckle assembly includes two springs, which are respectively fixedly connected to the inside of the front and rear sides of the mounting seat, and the two springs are fixedly connected with a clamping block on the sides facing each other, and the two clamping blocks are fixedly connected with a pull rod on the sides away from each other.

[0008] Furthermore, both the front and rear sides of the connection block are provided with card slots, and the two card blocks are fixedly connected in the two card slots on the opposite sides thereof.

[0009] Furthermore, limiting grooves are provided inside the front and rear sides of the mounting seat.

[0010] Furthermore, the two springs are fixedly connected in the two limiting grooves at the separated sides thereof.

[0011] Furthermore, the two clamping blocks are slidably connected in the two limiting grooves at the separated sides thereof.

[0012] Furthermore, the four corners of the bottom of the base plate are rotatably connected with universal wheels.

[0013] The utility model has the following beneficial effects:

[0014] 1. In the present invention, through the cooperation of the fixing block, the telescopic rod, the mounting seat and the screening instrument, the screening instrument can be raised and lowered to adjust the height to adapt to users of different heights. Since people's heights vary, especially between children and adults, the ability to adjust the height can ensure that everyone can easily stand at the correct height for vision examination, thereby ensuring the accuracy of the test results.

[0015] 2. In the utility model, through the mutual cooperation of the mounting seat, spring, clamp block, connecting block and screener, the detachable design helps to carry out regular maintenance and care more easily, thereby extending the service life of the vision screener, which can ensure the performance and stability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a three-dimensional schematic diagram of a liftable vision screening device proposed by the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of a mounting base of a liftable vision screening instrument proposed by the utility model;

[0018] Figure 3 The utility model is a schematic diagram of the structure of a lifting rod of a vision screening instrument.

[0019] Legend:

[0020] 1. Bottom plate; 2. Fixing block; 3. Telescopic rod; 4. Mounting seat; 5. Screener; 6. Fitting groove; 7. Connecting block; 8. Sleeve rod; 9. Reset spring; 10. Connecting rod; 11. Spring; 12. Block; 13. Pull rod; 14. Limiting groove; 15. Slot; 16. Universal wheel. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Reference Figure 1-2 The utility model provides an embodiment: a liftable vision screening instrument, comprising a base plate 1, supporting components are arranged at the four corners of the top of the base plate 1, a fixing block 2 is fixedly connected to the middle of the top side of the base plate 1, a telescopic rod 3 is fixedly connected to the top of the fixing block 2, a mounting seat 4 is fixedly connected to the top of the telescopic rod 3, a buckle component is arranged inside the front and rear sides of the mounting seat 4, a screening instrument 5 is slidably connected to the top of the mounting seat 4, an engaging groove 6 is opened in the middle of the top side of the mounting seat 4, a connecting block 7 is fixedly connected to the bottom of the screening instrument 5, the connecting block 7 is slidably connected in the engaging groove 6, and the four corners of the bottom of the base plate 1 are rotatably connected to universal wheels 16.

[0023] Specifically, the base plate 1 serves as the foundation of the entire device, and support components are provided at the four corners of its top to provide stability and balanced support for the overall structure. The fixed block 2 is fixedly connected to the middle of the top side of the base plate 1 to fix the position of the telescopic rod 3 to ensure the stability of the vertical lifting movement of the screener 5. The top of the telescopic rod 3 is fixedly connected to the fixed block 2 to realize the lifting function of the equipment, so that the user can adjust the height of the screener 5 as needed. The mounting seat 4 is fixed to the top of the telescopic rod 3, and buckle components are provided on the front and back sides thereof to connect and support the screener 5 to ensure its safety and stability during the lifting process. The screener 5 is located on the top of the mounting seat 4 for vision examination. An engaging groove 6 is provided in the middle of the top side of the mounting seat 4 for fixedly connecting the connecting block 7 to ensure the firmness and stability of the connection. The four corners of the bottom of the base plate 1 are rotatably connected with universal wheels 16 to facilitate rotation and movement of the entire device, thereby increasing its flexibility and convenience in use.

[0024] Reference Figure 1 and Figure 3 The supporting assembly includes a plurality of sleeve rods 8, which are respectively fixedly connected to the four corners of the top side of the base plate 1, and the inner sides of the plurality of sleeve rods 8 are fixedly connected to return springs 9, and the tops of the plurality of return springs 9 are fixedly connected to connecting rods 10, and the tops of the plurality of connecting rods 10 are respectively fixedly connected to the four corners of the bottom of the mounting seat 4.

[0025] Specifically, a plurality of sleeve rods 8 constitute a support assembly, which are fixedly connected to the four corners of the top side of the bottom plate 1, and are used to provide a support structure for the mounting seat 4. The main function of the sleeve rods 8 is to support the bottom plate 1 and maintain the stability of the entire device. A reset spring 9 is fixedly connected to the inner side of each sleeve rod 8, which is used to provide elastic support during the lifting process. The function of the reset spring 9 is to provide a certain elasticity when the screening device 5 is lifted and lowered, so that it can rise and fall smoothly. The tops of the plurality of reset springs 9 are fixedly connected to connecting rods 10, and the tops of the connecting rods 10 are fixedly connected to the four corners of the bottom of the mounting seat 4, respectively, to connect the sleeve rods 8 and the mounting seat 4.

[0026] Reference Figure 1-2 The buckle assembly includes two springs 11, which are fixedly connected to the front and rear sides of the mounting seat 4 respectively. Limiting grooves 14 are provided inside the front and rear sides of the mounting seat 4. The two springs 11 are fixedly connected to the two limiting grooves 14 on the separated sides. The two springs 11 are fixedly connected to the two limiting grooves 14 on the opposite sides. The two springs 11 are fixedly connected to the two limiting grooves 14 on the opposite sides. The two blocking blocks 12 are slidably connected to the two limiting grooves 14 on the separated sides. The connecting block 7 is provided with a clamping groove 15 on the front and rear sides. The two blocking blocks 12 are fixedly connected to the two clamping grooves 15 on the opposite sides. The two blocking blocks 12 are fixedly connected to the two limiting grooves 15 on the separated sides. The two blocking blocks 12 are fixedly connected to the pull rod 13 on the separated sides.

[0027] Specifically, the two springs 11 are fixedly connected in the internal limiting grooves 14 on the front and rear sides of the mounting seat 4, and are used to provide elastic support for the block 12 in the buckle assembly. The limiting grooves 14 are used to limit the movement range of the springs 11 to ensure that the buckle assembly remains stable during operation. The connecting block 7 is provided with slots 15 on the front and rear sides. The two blocks 12 are fixedly connected to the connecting block 7 on the opposite sides through the slots 15 to ensure that the connection between the screening device 5 and the mounting seat 4 is fixed. During the movement of the buckle assembly, the pull rod 13 pulls the block 12 to pull the buckle, thereby realizing the locking and release of the block 12.

[0028] Working principle: The user first selects a suitable height according to his or her own height, and then adjusts the length of the telescopic rod 3 to position the screener 5 at the correct height. Due to differences in people's heights, especially between children and adults, the adjustable height design ensures that everyone can easily stand at the correct height for vision examination, thereby ensuring the accuracy of the test results.

[0029] When regular maintenance and servicing are required, the user can pull the pull rod 13 to cause the block 12 to retract into the limit slot 14. The block 12 will be out of the slot 15, and the screener 5 can be slid upward and removed. The detachable design helps to reduce the difficulty of maintenance, extend the service life of the equipment, and ensure the performance and stability of the equipment.

[0030] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A liftable vision screening instrument, comprising a base plate (1), characterized in that: The four corners of the top of the base plate (1) are provided with support components, the middle part of the top side of the base plate (1) is fixedly connected with a fixed block (2), the top of the fixed block (2) is fixedly connected with a telescopic rod (3), the top of the telescopic rod (3) is fixedly connected with a mounting seat (4), the front and rear sides of the mounting seat (4) are internally provided with buckle components, the top of the mounting seat (4) is slidably connected with a screening instrument (5), the middle part of the top side of the mounting seat (4) is provided with an engaging groove (6), the bottom of the screening instrument (5) is fixedly connected with a connecting block (7), and the connecting block (7) is slidably connected in the engaging groove (6).

2. The liftable vision screening instrument according to claim 1, characterized in that: The support assembly comprises a plurality of sleeve rods (8), the plurality of sleeve rods (8) being fixedly connected to the four corners of the top side of the base plate (1), the inner sides of the plurality of sleeve rods (8) being fixedly connected to reset springs (9), the tops of the plurality of reset springs (9) being fixedly connected to connecting rods (10), and the tops of the plurality of connecting rods (10) being fixedly connected to the four corners of the bottom of the mounting seat (4).

3. The liftable vision screening instrument according to claim 1, characterized in that: The buckle assembly comprises two springs (11), the two springs (11) are respectively fixedly connected to the inside of the front and rear sides of the mounting seat (4), the two springs (11) are fixedly connected to a clamping block (12) on the sides facing each other, and the two clamping blocks (12) are fixedly connected to a pull rod (13) on the sides away from each other.

4. The liftable vision screening instrument according to claim 3, characterized in that: The connection block (7) is provided with a card slot (15) on both the front and rear sides, and the two card blocks (12) are fixedly connected in the two card slots (15) on the opposite sides.

5. The liftable vision screening instrument according to claim 4, characterized in that: Limiting grooves (14) are provided inside both the front and rear sides of the mounting seat (4).

6. The liftable vision screening instrument according to claim 5, characterized in that: The separated sides of the two springs (11) are respectively fixedly connected in the two limiting grooves (14).

7. The liftable vision screening instrument according to claim 6, characterized in that: The two clamping blocks (12) are slidably connected in the two limiting grooves (14) at the separated sides.

8. The liftable vision screening instrument according to claim 1, characterized in that: The four corners at the bottom of the base plate (1) are rotatably connected to universal wheels (16).

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