CN216718803U

CN216718803U - Display screen observation head

Info

Publication number: CN216718803U
Application number: CN202220152775.0U
Authority: CN
Inventors: 张浩杰; 王国瑞
Original assignee: NINGBO TEACHING INSTRUMENT CO Ltd
Current assignee: NINGBO TEACHING INSTRUMENT CO Ltd
Priority date: 2022-01-20
Filing date: 2022-01-20
Publication date: 2022-06-10
Anticipated expiration: 2032-01-20

Abstract

The utility model discloses a display screen observation head, which comprises a display screen, a shell cover and a shell, wherein the display screen is connected with the shell cover, the shell cover is connected with the shell, the other end of the shell is provided with a bottom plate, an interface is fixed outside the bottom plate, a connecting tube is arranged in the shell, a light through hole is formed in the connecting tube, an auxiliary lens group is arranged in the light through hole, the auxiliary lens group comprises a lens sleeve, a meniscus lens and a convex lens, and a cushion ring and a compression ring are arranged in the lens sleeve; connect a section of thick bamboo upper end to be equipped with the digital board seat, be equipped with the color filter group in the middle of the digital board seat, it has the support column to distribute on the digital board seat, is fixed with the loading board on the support column, is equipped with the through-hole in the middle of the loading board, is provided with the CMOS board on the loading board, and the CMOS board passes through the video connecting line and is connected with the display screen. The display screen observation head provided by the utility model realizes display screen imaging by arranging the auxiliary lens group and the corresponding connecting structure, has adjustable and detachable structural characteristics, can be used as a teaching aid for splitting and explaining in use, and is convenient to use.

Description

Display screen observation head

Technical Field

The utility model relates to a display screen observation head, in particular to a display screen observation head.

Background

The conventional microscope is usually observed by a user through an eyepiece, is easy to cause asthenopia, is not beneficial to long-time use, and therefore needs a more convenient and simple digital display device, so that the user can observe the microscope conveniently.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects of the prior art and provide the display screen observation head which is convenient to observe and adjust.

In order to achieve the purpose, the display screen observation head designed by the utility model comprises a display screen, a shell cover and a shell, wherein the display screen is connected with the shell cover, the shell cover is connected with one end of the shell, the other end of the shell is provided with a bottom plate, a connector is fixed outside the bottom plate, a connecting cylinder is arranged in the shell and is fixed on the bottom plate, a light through hole is arranged in the connecting cylinder, an auxiliary lens group is arranged in the light through hole and comprises a lens sleeve, a meniscus lens and a convex lens, the lens sleeve is connected with the light through hole through a thread, the meniscus lens and the convex lens are mounted in the middle of the lens sleeve after being jointed, a limiting step is arranged in the lens sleeve, one surface of the meniscus lens bulge faces the connector and is abutted against the limiting step, a cushion ring and a compression ring are arranged in the lens sleeve, the cushion ring is arranged above the convex lens, and the thickness of the cushion ring is larger than the bulge height from the edge of the convex lens on the side of the cushion ring to the center of the convex lens, the compression ring is in threaded connection with the lens sleeve, and the compression ring is screwed into the lens sleeve and abuts against the backing ring; the upper end of the connecting cylinder is provided with a digital plate seat, a color filter group is arranged in the middle of the digital plate seat, support columns are distributed on the digital plate seat, a bearing plate is fixed on the support columns, a through hole is formed in the middle of the bearing plate, a CMOS plate is arranged on the bearing plate, and the CMOS plate is connected with a display screen through a video connecting line.

In order to facilitate installation, the digital plate seat is in a flange type, a taper sleeve with a trapezoidal section is arranged at the lower part of the digital plate seat, three centering screw holes are uniformly distributed on the side wall of the connecting cylinder in a surrounding manner, centering set screws are arranged in the centering screw holes, and the end parts of the centering set screws are propped against the surface of the taper sleeve; the middle of the digital plate seat is provided with an internal thread hole, the color filter group comprises a color filter, an annular sheet frame and a positioning ring, the annular sheet frame is in threaded connection with the internal thread hole, the positioning ring and the color filter are arranged in the center of the annular sheet frame, and the positioning ring is connected with the annular sheet frame and fixes the color filter on the annular sheet frame.

In order to ensure reliable connection, the upper side surface of the connecting cylinder is also provided with a fastening screw hole, a fastening screw is arranged in the fastening screw hole, and the fastening screw abuts against the side surface of the lens sleeve.

In order to facilitate height adjustment, the supporting column is a short column with a hole, a screw hole is formed in the digital plate seat, and the short column is aligned with the screw hole; in the in-service use, can replace the support column according to the high demand, make things convenient for the formation of image adjustment.

The display screen observation head provided by the utility model realizes display screen imaging by arranging the auxiliary lens group and the corresponding connecting structure, has adjustable and detachable structural characteristics, can be used as a teaching aid for splitting and explaining in use, and is convenient to use.

Drawings

FIG. 1 is a schematic structural diagram of a viewing head of an embodiment 1 of a display screen according to the present invention;

FIG. 2 is an enlarged view of the auxiliary lens group in example 1;

fig. 3 is an enlarged schematic view at a in fig. 1.

In the figure: the display device comprises a display screen 1, a shell cover 2, a shell 3, a first screw 4, a second screw 5, a bottom plate 6, an interface 7, a third screw 8, a connecting cylinder 9, an auxiliary lens group 10, a digital plate seat 11, a color filter group 12, a support column 13, a bearing plate 14, a CMOS plate 15, a video connecting wire 16, a centering screw set 17, a fastening screw 18, a light through hole 90, a centering screw hole 91, a fastening screw hole 92, a lens sleeve 100, a meniscus lens 101, a convex lens 102, a limit step 103, a cushion ring 104, a pressing ring 105, a taper sleeve 110, an internal threaded hole 111, a color filter 120, an annular sheet frame 121, a positioning ring 122 and a through hole 140.

Detailed Description

To further illustrate the technical means and effects of the present invention for achieving the intended purpose of the utility model, the following detailed description of the embodiments, structures, features and effects according to the present invention will be made with reference to the accompanying drawings and preferred embodiments.

Example 1:

the display screen viewing head described in this embodiment, as shown in fig. 1, includes a display screen 1, a cover 2 and a housing 3, in this embodiment, the display screen 1 is connected to the cover 2 by a first screw 4, the cover 2 is connected to one end of the housing 3 by a second screw 5, a bottom plate 6 is disposed at the other end of the housing 3, the bottom plate 6 is connected to the housing 3 by a third screw 8, an interface 7 is fixed outside the bottom plate 6, a receiving tube 9 is disposed inside the housing 3, the receiving tube 9 is fixed on the bottom plate 6, in this embodiment, the receiving tube 9 is in threaded connection with the bottom plate 6, a light through hole 90 is disposed inside the receiving tube 9, an auxiliary lens group 10 is disposed inside the light through hole 90, the auxiliary lens group 10 includes a lens housing 100, a meniscus lens 101 and a convex lens 102, the lens housing 100 is in threaded connection with the light through hole 90, the meniscus lens 101 and the convex lens 102 are mounted in the middle of the lens housing 100 after being attached, a limiting step 103 is arranged in the lens sleeve 100, the convex surface of the meniscus lens 101 faces the interface 7 and is abutted against the limiting step 103, a backing ring 104 and a pressing ring 105 are arranged in the lens sleeve 100, the backing ring 104 is arranged above the convex lens 102, the thickness of the backing ring 104 is larger than the convex height from the edge of the convex lens 102 on the side where the backing ring 104 is located to the center of the convex lens 102, the pressing ring 105 is in threaded connection with the lens sleeve 100, the pressing ring 105 is screwed into the lens sleeve 100 and is abutted against the backing ring 104 so as to keep the meniscus lens 101 and the convex lens 102 stable, and the backing ring 104 is made of an elastic material, so that the buffering effect is achieved and the lens is prevented from being worn; the upper end of the connecting cylinder 9 is provided with a digital board seat 11, the middle of the digital board seat 11 is provided with a color filter 120 group 12, support columns 13 are distributed on the digital board seat 11, a bearing plate 14 is fixed on the support columns 13, the middle of the bearing plate 14 is provided with a through hole 140, a CMOS plate 15 is arranged on the bearing plate 14, and the CMOS plate 15 is connected with the display screen 1 through a video connecting line 16; in the actual work process, the installation and adjustment process of the display screen observation head is as follows: the connecting tube 9 is installed and fixed on the bottom plate 6, the connecting tube 9 and the bottom plate are connected in a threaded manner so as to be convenient to disassemble and assemble, the assembled auxiliary lens group 10 is screwed into the light through hole 90 from the upper part of the connecting tube 9, the installation height of the auxiliary lens group 10 is adjusted according to the parameters of the meniscus lens 101 and the convex lens 102, the digital plate base 11 provided with the color filter 120 group 12 is installed at the top of the connecting tube 9, the bearing plate 14 is fixedly installed on the supporting column 13, the CMOS plate 15 is finally fixed on the bearing plate 14, and after the installation is completed, the centers of the light through hole 90, the auxiliary lens group 10, the color filter 120 group 12 and the through hole 140 are required to be aligned, so that the light path from the interface 7 to the CMOS plate 15 is ensured to be smooth; after the installation is finished, the display screen 1 is connected with the CMOS board 15, the interface 7 is installed, the interface 7 is connected with a joint of a microscope with a glass slide, the microscope is electrified to check the imaging effect, and if the picture is clear, the shell 3, the shell cover 2 and the display screen 1 are installed continuously.

For convenience of installation, the number plate seat 11 is in a flange shape, the lower part of the number plate seat is provided with a taper sleeve 110 with a trapezoidal section, three centering screw holes 91 are uniformly distributed on the side wall of the connecting cylinder 9 in a surrounding manner, centering screws 17 are arranged in the centering screw holes 91, and the end parts of the centering screws 17 abut against the surface of the taper sleeve 110; the middle of the digital plate holder 11 is provided with an internal threaded hole 111, the color filter 120 group 12 comprises a color filter 120, an annular sheet frame 121 and a positioning ring 122, the annular sheet frame 121 is in threaded connection with the internal threaded hole 111, the positioning ring 122 and the color filter 120 are arranged in the center of the annular sheet frame 121, and the positioning ring 122 is connected with the annular sheet frame 121 and fixes the color filter 120 on the annular sheet frame 121; in actual installation, after the color filter 120 set 12 is mounted on the adapter 9, the three centering screws 17 are adjusted to center the color filters 120 on the color filter 120 set 12 and the light passing holes 90.

In order to ensure reliable connection, a fastening screw hole 92 is further formed in the upper side surface of the adapter 9, a fastening screw 18 is arranged in the fastening screw hole 92, and the fastening screw 18 abuts against the side surface of the lens sleeve 100; when the lens housing 100 is installed in the adapter 9, the fastening screw 18 is initially screwed into the fastening screw hole 92, and after the power-on and debugging operations are completed, the fastening screw 18 is screwed to ensure stable fixation without loosening.

In order to facilitate height adjustment, the supporting column 13 is a short column with a hole, a screw hole is formed in the digital plate seat 11, and the short column is aligned with the screw hole; in practical use, the supporting columns 13 can be replaced according to the height requirement, so that the imaging adjustment is convenient, and meanwhile, the supporting columns 13 can also be arranged between the CMOS plate 15 and the bearing plate 14, so that the installation and fixation of the CMOS plate 15 and the adjustment of the distance from the CMOS plate to the auxiliary lens group 10 are facilitated.

The display screen viewing head that this embodiment provided through the connection structure who sets up supplementary mirror group 10 and correspond, has realized the display screen formation of image, possesses adjustable, detachable structural feature simultaneously, and in use can carry out the split explanation as the teaching aid, convenient to use.

Although the present invention has been described with reference to the preferred embodiments, it should be understood that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the utility model as defined by the appended claims.

Claims

1. A display screen observation head comprises a display screen (1), a shell cover (2) and a shell (3), and is characterized in that the display screen (1) is connected with the shell cover (2), the shell cover (2) is connected with one end of the shell (3), a bottom plate (6) is arranged at the other end of the shell (3), an interface (7) is fixed outside the bottom plate (6), a receiving tube (9) is arranged in the shell (3), the receiving tube (9) is fixed on the bottom plate (6), a light through hole (90) is arranged in the receiving tube (9), an auxiliary lens group (10) is arranged in the light through hole (90), the auxiliary lens group (10) comprises a lens sleeve (100), a meniscus lens (101) and a convex lens (102), the lens sleeve (100) is connected with the light through hole (90) through a thread, the meniscus lens (101) and the convex lens (102) are installed in the middle of the lens sleeve (100) after being jointed, a limiting step (103) is arranged in the lens sleeve (100), the convex surface of the meniscus lens (101) faces the interface (7) and is abutted against the limiting step (103), a backing ring (104) and a pressing ring (105) are arranged in the lens sleeve (100), the backing ring (104) is arranged above the convex lens (102), the thickness of the backing ring is larger than the convex height from the edge of the convex lens (102) on the side where the backing ring (104) is located to the center of the convex lens (102), the pressing ring (105) is in threaded connection with the lens sleeve (100), and the pressing ring (105) is abutted against the backing ring (104) after being screwed into the lens sleeve (100); the digital board seat (11) is arranged at the upper end of the connecting cylinder (9), the color filter (120) group (12) is arranged in the middle of the digital board seat (11), the support columns (13) are distributed on the digital board seat (11), the support column (13) is fixedly provided with the bearing plate (14), the middle of the bearing plate (14) is provided with a through hole (140), the bearing plate (14) is provided with a CMOS plate (15), and the CMOS plate (15) is connected with the display screen (1) through a video connecting line (16).

2. The display screen viewing head according to claim 1, wherein the digital plate holder (11) is in a flange shape, the lower part of the digital plate holder is provided with a taper sleeve (110) with a trapezoidal section, three centering screw holes (91) are uniformly distributed around the side wall of the connecting cylinder (9), a centering set screw (17) is arranged in each centering screw hole (91), and the end part of each centering set screw (17) is abutted against the surface of the taper sleeve (110); the middle of the digital plate seat (11) is provided with an internal thread hole (111), the color filter (120) group (12) comprises a color filter (120), an annular sheet frame (121) and a positioning ring (122), the annular sheet frame (121) is in threaded connection with the internal thread hole (111), the positioning ring (122) and the color filter (120) are installed in the center of the annular sheet frame (121), and the positioning ring (122) is connected with the annular sheet frame (121) and fixes the color filter (120) on the annular sheet frame (121).

3. The display screen viewing head according to claim 1 or 2, wherein the adapter (9) is further provided with a fastening screw hole (92) on the upper side, a fastening screw (18) is arranged in the fastening screw hole (92), and the fastening screw (18) abuts against the side surface of the lens sleeve (100).

4. The viewing head according to claim 1 or 2, wherein said support posts (13) are short posts with holes, and screw holes are provided on the digital plate holder (11), said short posts being aligned with the screw holes.