Height adjusting support for electronic visual chart

Abstract

The utility model belongs to the technical field of height adjusting supports, and particularly relates to an electronic visual chart height adjusting support which comprises a supporting seat, wheels are installed at the bottom end of the supporting seat, an adjusting rod is connected to the top end of the supporting seat, and an electronic visual chart body is arranged on one side of the top end of the adjusting rod. A butt joint block is connected to the back end of the electronic visual chart body, a fixing block is installed at the top end of the adjusting rod, a two-way threaded rod is installed in the fixing block, a bearing is connected to one end of the two-way threaded rod, and a protruding block is in threaded connection to the surface of the two-way threaded rod; according to the utility model, through the cooperation between the convex block and the bidirectional threaded rod, the convex block can drive the positioning column to be embedded with the butt joint block, so that the installation work of the electronic visual chart body is completed, the installation efficiency is improved, the disassembly work of the electronic visual chart body is also facilitated, and the subsequent cooperation between the supporting column and the fixing column is facilitated. The supporting column descends to be in contact with the ground, so that the use stability of the supporting seat is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of height adjustment brackets, and in particular relates to a height adjustment bracket for an electronic eye chart. Background Art

[0002] A height-adjustable stand is a height-adjustable support device commonly used in various applications requiring height adjustment. Typically made of metal, plastic, wood, and other materials, it is durable and stable. Structurally, a height-adjustable stand typically utilizes a telescopic rod, adjustment screws, and support legs, allowing for manual or power adjustments of height and angle.

[0003] At present, with the development of society, there are more and more electronic devices. Some of these electronic devices may cause damage to the eyes, and thus vision needs to be checked. Usually, an electronic eye chart is used for vision check, and the electronic eye chart is an electronic device used to measure vision. Compared with the traditional paper eye chart, it may have higher accuracy and more functions. The installation and use of the electronic eye chart needs to be coordinated with the height adjustment bracket. However, the existing height adjustment bracket and the electronic eye chart are basically installed with screws, and the screw installation requires professional safety tools, which will increase the installation time. At the same time, the threads on the surface of the screws will also be worn due to long-term use, which will make the disassembly of the screws difficult for a long time. Utility Model Content

[0004] The purpose of the utility model is to provide a height adjustment bracket for an electronic eye chart, aiming to solve the problem in the prior art that the existing height adjustment bracket and the electronic eye chart are basically installed using screws, and the installation of screws requires professional safety tools, which will increase the installation time. At the same time, the threads on the disassembly surface of the screws will also cause certain wear and tear over time, which will make the disassembly of the screws difficult over time.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a height adjustment bracket for an electronic eye chart, comprising a support seat, a wheel installed at the bottom end of the support seat, an adjustment rod connected to the top end of the support seat, an electronic eye chart body provided on one side of the top end of the adjustment rod, a docking block connected to the back end of the electronic eye chart body, a fixing block installed at the top end of the adjustment rod, a bidirectional threaded rod installed inside the fixing block, one end of the bidirectional threaded rod connected to a bearing, a protrusion threadedly connected to the surface of the bidirectional threaded rod, and a positioning column connected to the inner side wall of the protrusion.

[0006] As a preferred embodiment of the height adjustment bracket for an electronic eye chart of the present invention, the different-direction threads on the surface of the bidirectional threaded rod are symmetrical, and the protrusion is provided with two different-direction threads respectively connected to the surface of the bidirectional threaded rod.

[0007] As a preferred embodiment of the height adjustment bracket for an electronic eye chart of the present invention, the bidirectional threaded rod is rotationally connected to the fixed block via a bearing.

[0008] As a preferred embodiment of the height adjustment bracket for an electronic eye chart of the present invention, the protrusion forms a threaded motion with the fixed block through a bidirectional threaded rod.

[0009] As a preferred embodiment of the height adjustment bracket of the electronic eye chart of the present invention, a fixing column is installed at the bottom end of the support seat, the bottom end of the fixing column is connected to the supporting column, and the bottom end of the supporting column is connected to the anti-slip pad.

[0010] As a preferred embodiment of the height adjustment bracket of the electronic eye chart of the present invention, a thread groove is provided at the bottom end of the fixing column, a thread is provided on the surface of the supporting column, and the supporting column and the fixing column are connected by threads.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] The utility model uses the cooperation between the protrusion and the two-way threaded rod to allow the protrusion to drive the positioning column and the docking block to engage, thereby completing the installation of the electronic eye chart body, thereby improving the installation efficiency, and also facilitating the disassembly of the electronic eye chart body. Subsequently, the support column and the fixed column cooperate to allow the support column to descend and contact the ground, thereby increasing the stability of the support base. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0014] Figure 1 This is a schematic diagram of the main structure of the utility model from a top view;

[0015] Figure 2 This is a schematic diagram of the main structure of the utility model when viewed from above;

[0016] Figure 3 This is a schematic diagram of the connection structure between the fixed column and the support base of the utility model;

[0017] Figure 4 It is a schematic diagram of the cross-sectional structure of the fixing block of the present utility model.

[0018] In the figure: 1. Support seat; 2. Wheel; 3. Adjustment rod; 4. Electronic eye chart body; 5. Fixing block; 6. Fixing column; 7. Support column; 8. Anti-slip pad; 9. Bidirectional threaded rod; 10. Bearing; 11. Bump; 12. Positioning column; 13. Docking block. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention. Example

[0020] See also Figure 1-4 The utility model provides the following technical solutions: a height adjustment bracket for an electronic eye chart, comprising a support base 1, a wheel 2 being installed at the bottom end of the support base 1, an adjusting rod 3 being connected to the top of the support base 1, an electronic eye chart body 4 being provided on one side of the top of the adjusting rod 3, a docking block 13 being connected to the back end of the electronic eye chart body 4, a fixing block 5 being installed at the top of the adjusting rod 3, a bidirectional threaded rod 9 being installed inside the fixing block 5, a bearing 10 being connected at one end of the bidirectional threaded rod 9, a protrusion 11 being threadedly connected to the surface of the bidirectional threaded rod 9, and a positioning column 12 being connected to the inner side wall of the protrusion 11.

[0021] Preferably, the different-direction threads on the surface of the bidirectional threaded rod 9 are symmetrical, and two protrusions 11 are provided and respectively connected to the different-direction threads on the surface of the bidirectional threaded rod 9 .

[0022] Preferably, the bidirectional threaded rod 9 is rotatably connected to the fixed block 5 via a bearing 10 .

[0023] Preferably, the protrusion 11 forms a threaded motion with the fixing block 5 through the bidirectional threaded rod 9 .

[0024] In the embodiment, the installation of the electronic eye chart body 4 is described. First, the electronic eye chart body 4 is taken out and brought close to the fixed block 5. Then, the docking block 13 is fit with the front end surface of the fixed block 5. Then, the bidirectional threaded rod 9 is rotated to allow the bidirectional threaded rod 9 to rotate inside the fixed block 5 along the bearing 10. At the same time, the protrusion 11 starts to move along the axial threads on the surface of the bidirectional threaded rod 9, driving the positioning column 12 to approach the left and right sides of the docking block 13, so that the positioning column 12 is embedded in the openings on both sides of the docking block 13, thereby completing the installation of the electronic eye chart body 4. Conversely, when disassembling the electronic eye chart body 4, the bidirectional threaded rod 9 is reversed to allow the two protrusions 11 to move away from each other.

[0025] It should be noted that the height adjustment bracket is composed of the support base 1, wheel 2 and adjustment rod 3 mentioned in the article, and the height adjustment is completed through the adjustment rod 3. The height adjustment bracket belongs to the existing mature technology and has no obvious connection with the technical features described in this article, so it will not be elaborated on. Example

[0026] See also Figure 1-4 A fixing column 6 is installed at the bottom end of the support seat 1, the bottom end of the fixing column 6 is connected to a supporting column 7, and the bottom end of the supporting column 7 is connected to an anti-slip pad 8.

[0027] Preferably, a thread groove is provided at the bottom end of the fixing column 6 , a thread is provided on the surface of the supporting column 7 , and the supporting column 7 and the fixing column 6 are connected by threads.

[0028] In the embodiment, according to the description of the above embodiment 1, when the electronic eye chart body 4 is installed and the vision is checked, in order to ensure that the position of the support base 1 is fixed, at this time, the support column 7 is rotated to allow the support column 7 to move along the threaded groove at the bottom end of the fixed column 6, so that the support column 7 drops close to the ground, thereby driving the anti-slip pad 8 to contact the ground for support with the ground. At the same time, the anti-slip pad 8 also increases the friction with the ground, thereby fixing the position of the support base 1 and preventing the movement of the support base 1 from affecting the use of the electronic eye chart body 4.

[0029] In summary, according to the description of embodiments one and two, through the cooperation between the protrusion 11 and the bidirectional threaded rod 9, the protrusion 11 can drive the positioning column 12 to engage with the docking block 13, thereby completing the installation of the electronic eye chart body 4, thereby improving the installation efficiency, and also facilitating the disassembly of the electronic eye chart body 4. Subsequently, the support column 7 cooperates with the fixed column 6, allowing the support column 7 to descend and contact the ground, thereby increasing the stability of the support base 1.

[0030] Finally, it should be noted that the above description is merely 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 will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. An electronic eye chart height adjustment bracket, comprising a support base (1), characterized in that: A wheel (2) is mounted on the bottom end of the support seat (1); an adjustment rod (3) is connected to the top end of the support seat (1); an electronic eye chart body (4) is arranged on one side of the top end of the adjustment rod (3); and a docking block (13) is connected to the back end of the electronic eye chart body (4); A fixing block (5) is installed at the top end of the adjusting rod (3), a bidirectional threaded rod (9) is installed inside the fixing block (5), one end of the bidirectional threaded rod (9) is connected to a bearing (10), a surface of the bidirectional threaded rod (9) is threadedly connected to a protrusion (11), and an inner side wall of the protrusion (11) is connected to a positioning column (12).

2. The electronic eye chart height adjustment bracket according to claim 1, characterized in that: The different-direction threads on the surface of the bidirectional threaded rod (9) are symmetrical, and the protrusion (11) is provided with two different-direction threads respectively connected to the surface of the bidirectional threaded rod (9).

3. The electronic eye chart height adjustment bracket according to claim 1, characterized in that: The bidirectional threaded rod (9) is rotationally connected to the fixed block (5) via a bearing (10).

4. The electronic eye chart height adjustment bracket according to claim 1, characterized in that: The protrusion (11) forms a threaded motion with the fixed block (5) through the bidirectional threaded rod (9).

5. The electronic eye chart height adjustment bracket according to claim 1, characterized in that: A fixing column (6) is installed at the bottom end of the support seat (1), the bottom end of the fixing column (6) is connected to a supporting column (7), and the bottom end of the supporting column (7) is connected to an anti-slip pad (8).

6. The electronic eye chart height adjustment bracket according to claim 5, characterized in that: A thread groove is provided at the bottom end of the fixing column (6), a thread is provided on the surface of the supporting column (7), and the supporting column (7) and the fixing column (6) are connected by threads.

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