Portable handheld fundus camera convenient to store

Abstract

The utility model relates to the technical field of fundus cameras, in particular to a portable handheld fundus camera convenient to store, which comprises an optical lens cone, a display part is arranged at one end of the optical lens cone, one end of a handle is hinged to the bottom of the display part, a U-shaped base is arranged at the other end of the handle, and an opening of the U-shaped base faces the front of the end provided with the optical lens cone. The handle is hinged to the display part at one end of the optical lens cone, the occupied space of the fundus camera can be rapidly reduced by rotating the handle during storage, and convenience and rapidness are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of fundus cameras, in particular to a portable handheld fundus camera which is easy to store. Background Art

[0002] A handheld fundus camera is a portable device used to capture images of the eye structure and fundus. It is usually used by ophthalmologists for eye examinations to observe blood vessels, retina and other important structures inside the eyeball. A handheld fundus camera has multiple functions, such as color fundus photography, which can truly reflect the color of the fundus and its pathological conditions, and provide certain help for the diagnosis of fundus diseases. In addition, there are functions such as non-mydriasis color fundus photography, ultra-wide-angle fundus photography, multi-wavelength spectrum fundus photography and stereo fundus photography, which provide greater convenience for clinical examination and diagnosis of ophthalmology. Handheld fundus cameras usually use high-definition image sensors and professional optical systems, which can obtain fundus images in real time and transmit them to the connected display for doctors to diagnose and treat. This device is easy to operate, non-contact and non-invasive, and powerful. It is suitable for clinical, scientific research and community rounds. The wide range of application scenarios requires that the use and storage of fundus cameras should be as flexible as possible and occupy as little space as possible. Although the existing fundus cameras are easy to use and handheld, they occupy a large space for storage, and are usually split structures and are time-consuming to store. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a portable handheld fundus camera which is easy to store in view of the above-mentioned technical deficiencies. The problem that the existing handheld fundus camera occupies a large storage space is solved by hingedly arranging the handle.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0005] A portable handheld fundus camera that is easy to store comprises an optical lens barrel, a display unit is arranged at one end of the optical lens barrel, one end of a handle is hingedly connected to the bottom of the display unit, a U-shaped base is arranged at the other end of the handle, and the opening of the U-shaped base faces the front where one end of the optical lens barrel is arranged; a downwardly protruding base block is arranged at the bottom of the display unit, fixed shafts are arranged at the left and right sides of the base block respectively, an opening groove is arranged at the top of the handle at a position corresponding to the base block, an axis hole is arranged at a position corresponding to the opening groove and the fixed shaft, the fixed shaft is penetrated in the axis hole, and a position locking mechanism is arranged between the base block and the opening groove; the position locking mechanism comprises a pin, a pin hole is arranged at one side of the axis hole, a communicating opening is arranged at a position corresponding to the pin hole and the opening groove, the pin is penetrated in the pin hole, a pressure cap is arranged at one end of the pin, a radially protruding pin block is arranged at the other end of the pin, an arc groove is arranged at a position corresponding to the base block and the pin block, a spring is arranged at the inner bottom of the pin hole, and an end of the spring away from the bottom of the pin hole is axially connected to one end of the pin.

[0006] To further optimize the technical solution, a staple is provided on the inner side of the pin block opposite to the pressure cap, and a plurality of positioning holes are provided on the inner end face of the arc groove opposite to the staple, and the staple is inserted into one of the staples.

[0007] To further optimize the technical solution, a wire hole is provided at the center of the fixed axis, and the control cable in the display unit is inserted into the handle through the wire hole.

[0008] Compared with the prior art, the utility model has the following advantages:

[0009] 1. The handle is hinged to the display part at one end of the optical lens barrel. When storing, the space occupied by the fundus camera can be quickly reduced by rotating the handle, which is convenient and quick;

[0010] 2. The position locking mechanism can realize the reliable positioning of the handle at different angles, so that the fundus camera desktop can be used by people of different heights;

[0011] 3. After storage, the U-shaped base can protect both sides of the optical lens barrel to avoid accidental collision and damage to the optical lens barrel. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 A schematic diagram of the external structure of a portable handheld fundus camera that is easy to store;

[0013] Figure 2 An exploded schematic diagram of a portable handheld fundus camera that is easy to store;

[0014] Figure 3 A schematic diagram of the structure of the handle of a portable handheld fundus camera that is easy to store after explosion;

[0015] Figure 4 The present invention is a schematic diagram of the structure of a portable handheld fundus camera which is easy to store after being stored.

[0016] In the figure:

[0017] 1. Optical lens barrel; 11. Base block; 110. Fixed axis; 111. Wire hole; 12. Arc groove; 121. Positioning hole; 2. Display unit; 3. Handle; 31. Opening groove; 310. Axis hole; 32. Pin hole; 321. Opening window; 4. U-shaped base; 5. Pin; 51. Pressure cap; 52. Pin block; 521. Pin; 53. Spring. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model is further described in detail below in conjunction with the reference drawings of specific embodiments. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the utility model. In addition, in the following description, the description of well-known structures and technologies is omitted to avoid unnecessary confusion of the concept of the utility model.

[0019] It should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. used in this application document to indicate positions or positional relationships are based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present disclosure and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present disclosure. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0020] Combination Figures 1 to 2 As shown, a portable handheld fundus camera that is easy to store includes an optical lens barrel 1, a display unit 2 is provided at one end of the optical lens barrel 1, one end of a handle 3 is hingedly connected to the bottom of the display unit 2, a U-shaped base 4 is provided at the other end of the handle 3, and the opening of the U-shaped base 4 faces the front of the end of the optical lens barrel 1. A downwardly protruding base block 11 is provided at the bottom of the display unit 2, and fixed shafts 110 are provided on the left and right sides of the base block 11, respectively. An opening groove 31 is provided at the top of the handle 3 at a position corresponding to the base block 11, and an axis hole 310 is provided at a position corresponding to the opening groove 31 and the fixed shaft 110, and the fixed shaft 110 is penetrated in the axis hole 310, and a position locking mechanism is provided between the base block 11 and the opening groove 31.

[0021] Combination Figures 2 to 3 As shown, a wire hole 111 is provided at the center of the fixed axis 110, and the control cable in the display unit 2 passes through the wire hole 111 to penetrate into the handle 3. The position locking mechanism includes a pin 5, a pin hole 32 is provided on one side of the axis hole 310, and a communicating opening window 321 is provided at a position corresponding to the pin hole 32 and the opening slot 31. The pin 5 is inserted into the pin hole 32, and a pressure cap 51 is provided at one end of the pin 5. A radially protruding pin block 52 is provided at the other end of the pin 5. The pin block 52 extends into the opening slot 31 through the provided opening window 321. An arc groove 12 is provided at a position corresponding to the base block 11 and the pin block 52. A spring 53 is provided at the inner bottom of the pin hole 32, and one end of the spring 53 away from the bottom of the pin hole 32 is axially connected to one end of the pin 5. A staple 521 is provided on the inner side of the pin block 52 opposite to the pressure cap 51 , and a plurality of positioning holes 121 are provided on the inner end surface of the arc groove 12 opposite to the staple 521 , and the staple 521 is inserted into one of the staples 521 .

[0022] When using, combine Figures 1 to 4As shown, the U-shaped base 4 at the bottom of the handle 3 is supported on the platform desktop, so that the optical lens barrel 1 of the fundus camera can be placed horizontally on the desktop. The fundus camera can be placed on the desktop or used by hand. When placed on the desktop, the pitch angle of the optical lens barrel 1 can be adjusted to achieve the adaptation of people of different heights. When adjusting the angle of the handle 3, first press the pressure cap 51, and the pin 5 is retracted inward. At this time, the spring 53 is compressed, and the staple 521 is separated from the positioning hole 121 in the original position. At this time, when the handle 3 is rotated to the appropriate position, the pressure cap 51 is released. The pin 5 moves outward under the elastic force of the spring 53, and the staple 521 in the pin block 52 is re-engaged into the positioning hole 121 at the new position, so that the handle 3 can be reliably positioned. When it needs to be stored, combined with Figure 4 As shown: the handle 3 can be rotated to contact the optical lens barrel 1, which effectively reduces the storage volume when stored. At the same time, the U-shaped base 4 can protect both sides of the optical lens barrel 1 to avoid accidental collision damage to the optical lens barrel 1.

[0023] It should be understood that the above specific embodiments of the present invention are only used to illustrate or explain the principles of the present invention, and do not constitute a limitation on the present invention. Therefore, any modifications, equivalent substitutions, improvements, etc. made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. In addition, the claims attached to the present invention are intended to cover all changes and modifications that fall within the scope and boundaries of the attached claims, or within the equivalent forms of such scope and boundaries.

Claims

1. A portable handheld fundus camera that is easy to store, comprising an optical lens barrel (1), one end of which is provided with a display unit (2), characterized in that: One end of a handle (3) is hingedly connected to the bottom of the display part (2); the other end of the handle (3) is provided with a U-shaped base (4); the opening of the U-shaped base (4) faces the front where one end of the optical lens barrel (1) is provided; The bottom of the display part (2) is provided with a base block (11) protruding downwards, and fixed shafts (110) are respectively provided on the left and right sides of the base block (11), and an opening groove (31) is provided at a position corresponding to the base block (11) on the top of the handle (3), and an axis hole (310) is provided at a position corresponding to the opening groove (31) and the fixed shaft (110), and the fixed shaft (110) is inserted into the axis hole (310), and a position locking mechanism is provided between the base block (11) and the opening groove (31); The position locking mechanism comprises a pin (5), a pin hole (32) is provided on one side of the shaft hole (310), a communicating opening (321) is provided at a position corresponding to the pin hole (32) and the opening groove (31), the pin (5) is inserted into the pin hole (32), a pressure cap (51) is provided at one end of the pin (5), a radially protruding pin block (52) is provided at the other end of the pin (5), an arc groove (12) is provided at a position corresponding to the base block (11) and the pin block (52), a spring (53) is provided at the inner bottom of the pin hole (32), and one end of the spring (53) away from the bottom of the pin hole (32) is axially abutted against one end of the pin (5).

2. The portable handheld fundus camera that is easy to store according to claim 1, characterized in that: A clamping nail (521) is provided on the inner side of the pin block (52) opposite to the pressure cap (51), and a plurality of positioning holes (121) are provided on the inner end surface of the arc-shaped groove (12) opposite to the clamping nail (521), and the clamping nail (521) is inserted into one of the clamping nails (521).

3. The portable handheld fundus camera that is easy to store according to claim 2, characterized in that: A wire hole (111) is provided at the center of the fixed axis (110), and a control cable in the display unit (2) passes through the wire hole (111) and penetrates into the handle (3).

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