CN219629588U

CN219629588U - Portable combined vision testing device

Info

Publication number: CN219629588U
Application number: CN202320290508.4U
Authority: CN
Inventors: 吴殿臣; 何冰
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-02-23
Filing date: 2023-02-23
Publication date: 2023-09-05
Anticipated expiration: 2033-02-23

Abstract

The utility model discloses a portable combined vision testing device, which relates to the technical field of testing devices, wherein two mounting seats are correspondingly arranged on the lower surface of a box body, empty slots are formed in each mounting seat, screw rods are rotatably arranged in the centers of the interiors of the empty slots, threaded seats are arranged on each screw rod, two rollers are correspondingly arranged on the lower surface of each threaded seat, through holes are formed in the lower surface of each mounting seat under each roller, a central rod can be rotated to drive the two screws to rotate through a first conical tooth and a second conical tooth when the rollers are not used, the two threaded seats are driven to rise to drive four rollers to retract into the empty slots, the lower surfaces of the two mounting seats are further enabled to contact the ground, the stability of the device is enhanced, a color blindness detection plate is arranged besides the vision detection plate, the device is further changed into a combined device capable of detecting the color blindness, the function of the device is improved, and the practicability of the device is enhanced.

Description

Portable combined vision testing device

Technical Field

The utility model relates to the technical field of detection devices, in particular to a portable combined vision detection device.

Background

The vision testing device is used for vision testing of observers, for example, a portable ophthalmic testing device (publication number: CN 213216893U) is disclosed in a patent net, the device is convenient to move by using a moving wheel, but no stopping component is arranged on the moving wheel, so that the stability of the device is poor, the device can move when the device is randomly touched after being placed, and the observation of observers can be influenced in the observation process, and therefore, a portable combined vision testing device is proposed by a person skilled in the art.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides a portable combined vision testing device, which solves the problems in the background.

In order to achieve the above purpose, the utility model is realized by the following technical scheme: the utility model provides a portable combination formula eyesight detection device, includes the box, two mount pads are installed to the lower surface correspondence of box, every the empty slot has all been seted up in the mount pad, every the inside center of empty slot is all rotated and is installed the screw rod, every all be provided with the screw seat on the screw rod, every the lower surface of screw seat all corresponds installs two gyro wheels, every the through-hole has all been seted up under every gyro wheel to the lower surface of mount pad, every the cavity has all been seted up to the mount pad directly over the screw rod, two rotate between the cavity and install the center pole, every the upper end of screw rod all extends to in the cavity and installs first awl tooth, every in the cavity the second awl tooth with first awl tooth meshing is all installed to the surface of center pole, the one end of center pole extends to the outside of mount pad and installs first knob.

As a further technical scheme of the utility model, the upper surface of the box body is provided with a plurality of storage grooves which are uniformly distributed, a first storage groove is internally and slidably connected with a vision detection plate, and the other storage grooves are internally and slidably connected with color blindness detection plates.

As a further technical scheme of the utility model, two sliding grooves are correspondingly formed in each vision detection plate, a limiting plate is arranged in each sliding groove, and a spring is arranged on one side of the limiting plate in each sliding groove.

As a further technical scheme of the utility model, the center of the other side surface of each limiting plate is provided with a clamping piece extending to the outside of the vision detection plate, a central groove is formed in the vision detection plate between two sliding grooves, a rotating rod is rotatably arranged in the central groove, and two groups of clamping grooves matched with the clamping pieces are correspondingly formed in the inner wall of each storage groove up and down.

As a further technical scheme of the utility model, the center of the side surface of each limiting plate is provided with a steel wire rope which extends into the central groove and is fixedly connected with a rotating rod, one end of the rotating rod extends to the outside of the vision detection plate and is provided with a second knob, and the upper surface of the vision detection plate is provided with a handle.

As a further technical scheme of the utility model, the structures of the vision detection plate and the color blindness detection plate are completely the same, the front surface of the vision detection plate is provided with an eye chart, the front surface of each color blindness detection plate is provided with different color blindness detection pictures, and the rear surface of the box body is provided with a pull rod.

Advantageous effects

The utility model provides a portable combined vision testing device. Compared with the prior art, the method has the following beneficial effects:

1. a portable combined vision testing device can rotate a central rod to drive two screws to rotate through first bevel gears and second bevel gears when the roller is not used, and drive two screw thread seats to ascend to drive four rollers to retract into empty slots, so that the lower surfaces of two mounting seats are in contact with the ground, and the stability of the device is enhanced.

2. A portable combined vision detection device is provided with a color blindness detection plate in addition to a vision detection plate, so that the device is changed into a combined device capable of detecting vision and color blindness, the functions of the device are increased, and the practicability of the device is enhanced.

Drawings

FIG. 1 is a schematic diagram of a portable combined vision testing device;

FIG. 2 is a schematic view of a portable combined vision testing device in a vision testing state;

FIG. 3 is a cross-sectional view of a portable combined vision testing device;

FIG. 4 is a cross-sectional view of a mobile assembly of a portable combined vision testing device;

fig. 5 is a longitudinal cross-sectional view of a mobile assembly of a portable combined vision testing device.

In the figure: 1. a case; 2. a mounting base; 3. a hollow groove; 4. a screw; 5. a screw seat; 6. a roller; 7. a through hole; 8. a cavity; 9. a first bevel gear; 10. a central rod; 11. a second bevel gear; 12. a first knob; 13. a storage groove; 14. a vision detection plate; 15. a chute; 16. a limiting plate; 17. a clamping piece; 18. a spring; 19. a central slot; 20. a wire rope; 21. a rotating lever; 22. a second knob; 23. a handle; 24. a clamping groove; 25. a color blindness detection plate; 26. and (5) a pull rod.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-5, the present utility model provides a technical solution for a portable combined vision testing device: the utility model provides a portable combination formula eyesight detection device, the power distribution box comprises a box body 1, two mount pads 2 are installed in the lower surface of box 1 corresponds, hollow 3 has all been seted up in every mount pad 2, the inside center of every hollow 3 all rotates and installs screw rod 4, all be provided with screw thread seat 5 on every screw rod 4, two gyro wheels 6 are all corresponding to be installed to the lower surface of every screw thread seat 5, through-hole 7 has all been seted up under every gyro wheel 6 to the lower surface of every mount pad 2, cavity 8 has all been seted up in the positive top of screw rod 4 to every mount pad 2, rotate and install center rod 10 between two cavities 8, the upper end of every screw rod 4 all extends to cavity 8 and installs first bevel 9, the second bevel 11 with the engagement of first bevel 9 is all installed in the surface of every cavity 8, the one end of center rod 10 extends to the outside of mount pad 2 and installs first knob 12, rotatory first knob 12 drives center rod 10 and rotates when the mobile device, through two first bevel 9 and two gyro wheels 4 drive down through two bevel 4, four gyro wheels 4 drive the four reverse rotation, four gyro wheels 4 drive the through-hole 6, the four reverse rotation device, can stretch out four gyro wheels 4 drive the surface, four reverse rotation device, four drive device, four through-drive through-hole 6, four reverse rotation device, four drive device, four jack 4 is realized, and four jack device is accomplished.

The upper surface of the box body 1 is provided with a plurality of evenly distributed storage grooves 13, the first storage groove 13 is internally and slidably connected with vision detection plates 14, the other storage grooves 13 are internally and slidably connected with color blindness detection plates 25, two sliding grooves 15 are correspondingly arranged in each vision detection plate 14, each sliding groove 15 is internally provided with a limiting plate 16, one side of each sliding groove 15, which is arranged on the limiting plate 16, is provided with a spring 18, the center of the other side surface of each limiting plate 16 is provided with a clamping piece 17 which extends to the outside of the vision detection plate 14, the inside of the vision detection plate 14 is provided with a central groove 19 between the two sliding grooves 15, the central groove 19 is internally and internally provided with a rotating rod 21, the inner wall of each storage groove 13 is correspondingly provided with two groups of clamping grooves 24 which are matched with the clamping pieces 17 up and down, the center of each limiting plate 16 is provided with a steel wire rope 20 which extends to the central groove 19 and is fixedly connected with the rotating rod 21, one end of the rotating rod 21 extends to the outside of the vision detection plate 14 and is provided with a second knob 22, the upper surface of the vision detection plate 14 is provided with a handle 23, the structures of the vision detection plate 14 and the color blindness detection plate 25 are completely the same, the front surface of the vision detection plate 14 is provided with a vision inspection chart, the front surface of each color blindness detection plate 25 is provided with different color blindness detection pictures, the rear surface of the box body 1 is provided with a pull rod 26, when vision needs to be detected, the rotating rod 21 is driven by the second knob 22 on the rotating vision detection plate 14 to rotate and wind two steel wire ropes 20 to pull the two limiting plates 16 to move, the limiting plates 16 which move compress the springs 18 which simultaneously drive the clamping pieces 17 to move out of the clamping grooves 24 which are clamped into the sliding grooves 15 to release the fixation of the vision detection plate 14, then the vision detection plate 14 is lifted up until the two clamping pieces 17 are opposite to the two clamping grooves above, then, the two springs 18 of the second knob 22 are loosened to rebound to drive the two limiting plates 16 to restore positions, the two clamping pieces 17 are clamped into the aligned clamping grooves 24, the vision detection plate 14 is fixed again, the vision detection plate 14 is unfolded, vision detection can be carried out on an observer, when the eye detection plate is closed, the second knob 22 is rotated to enable the two clamping pieces 17 to enter the sliding groove 15 through the operation, then the vision detection plate 14 is pressed down to enable the two clamping pieces 17 to be aligned with the two clamping grooves 24 below, the second knob 22 is loosened to enable the two clamping pieces 17 to be clamped into the aligned clamping grooves 24, the vision detection plate 14 is fixed in the accommodating groove 13, and when the color blindness detection plate 25 is required to be detected, the color blindness detection plate 25 can be unfolded through the operation, and the color blindness can be detected.

The working principle of the utility model is as follows: when the device needs to be moved, the first knob 12 is rotated to drive the center rod 10 to rotate, the two screw rods 4 are driven to rotate in the same direction through the two first conical teeth 9 and the second conical teeth 11, the two screw seats 5 are driven to descend, the four rollers 6 are driven to extend out of the through holes 7 to support the whole device, the device can be moved by the four rollers 6, the device is more portable, after the movement is completed, the first knob 12 is reversed to drive the four screw rods 4 to be reversed through the operation, the four screw seats 5 are driven to ascend, the four rollers 6 are driven to retract into the empty slots, the lower surface of the mounting seat 2 is enabled to contact the ground, and the stability of the device is enhanced;

when vision is required to be detected, the second knob 22 on the vision detection plate 14 is rotated to drive the rotating rod 21 to rotate and wind the two steel wire ropes 20 to pull the two limiting plates 16 to move, the limiting plates 16 which move are compressed by the springs 18 and drive the clamping pieces 17 to move out of the clamping grooves 24 which are clamped into the sliding grooves 15 at the same time, the fixation of the vision detection plate 14 is released, then the vision detection plate 14 is lifted up until the two clamping pieces 17 are opposite to the two clamping grooves which are arranged above, then the second knob 22 is loosened, the two springs 18 rebound to drive the two limiting plates 16 to restore positions, the two clamping pieces 17 are clamped into the aligned clamping grooves 24, the vision detection plate 14 is fixed again, the vision detection plate 14 is unfolded, the vision detection plate 14 can be detected for the vision of an observer, the vision detection plate 14 is closed only by rotating the second knob 22, the two clamping pieces 17 are enabled to enter the sliding grooves 15 through the operation, then the two clamping pieces 17 are enabled to be aligned with the two clamping grooves 24 which are arranged below, the second knob 22 is loosened, the two clamping pieces 17 are enabled to be clamped into the aligned clamping grooves 24, and then the vision detection plate 14 is enabled to be clamped into the aligned clamping grooves 24, and the color blindness detection plate 14 can be further required to be fixed in the accommodating groove 13, and the color blindness detection plate can be detected when the color blindness detection plate is required to be unfolded, and the color blindness detection plate is required to be detected.

Claims

1. The utility model provides a portable combination formula eyesight detection device, includes box (1), its characterized in that, two mount pad (2) are all installed to the lower surface correspondence of box (1), every hollow (3) have all been seted up in mount pad (2), every hollow (3) inside center all rotates installs screw rod (4), every all be provided with screw thread seat (5) on screw rod (4), every the lower surface of screw thread seat (5) all corresponds installs two gyro wheels (6), every through-hole (7) have all been seted up under every gyro wheel (6) to the lower surface of mount pad (2) cavity (8) have all been seted up directly over screw rod (4), two rotate between cavity (8) and install center pole (10), every the upper end of screw rod (4) all extends to cavity (8) in and installs first awl 9), every in cavity (8) surface mounting in cavity (10) has first awl tooth (10) to the outside of first end (12) of installing.

2. The portable combined vision testing device according to claim 1, wherein a plurality of evenly distributed storage grooves (13) are formed in the upper surface of the box body (1), vision testing plates (14) are slidably connected in the first storage groove (13), and color blindness testing plates (25) are slidably connected in the rest storage grooves (13).

3. A portable combined vision testing device according to claim 2, characterized in that two sliding grooves (15) are correspondingly formed in each vision testing plate (14), limiting plates (16) are arranged in each sliding groove (15), and springs (18) are arranged on one sides of the limiting plates (16) in each sliding groove (15).

4. A portable combined vision testing device according to claim 3, characterized in that, each limiting plate (16) is provided with a clamping piece (17) extending to the outside of the vision testing plate (14) at the center of the other side, a central groove (19) is formed between two sliding grooves (15) in the vision testing plate (14), a rotating rod (21) is rotatably mounted in the central groove (19), and two groups of clamping grooves (24) matched with the clamping pieces (17) are correspondingly formed in the inner wall of each containing groove (13) up and down.

5. The portable combined vision testing device according to claim 4, wherein a steel wire rope (20) extending into the central groove (19) and fixedly connected with the rotating rod (21) is installed at the side center of each limiting plate (16), one end of the rotating rod (21) extends to the outside of the vision testing plate (14) and is provided with a second knob (22), and a handle (23) is installed on the upper surface of the vision testing plate (14).

6. The portable combined vision testing device according to claim 5, wherein the vision testing plate (14) and the achromatopsia testing plate (25) are identical in structure, an eye chart is arranged on the front surface of the vision testing plate (14), different achromatopsia testing pictures are arranged on the front surface of each achromatopsia testing plate (25), and a pull rod (26) is arranged on the rear surface of the box body (1).