CN215272671U

CN215272671U - Random visual inspection table for physical examination

Info

Publication number: CN215272671U
Application number: CN202120729454.8U
Authority: CN
Inventors: 宋珏; 李丹
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-04-12
Filing date: 2021-04-12
Publication date: 2021-12-24
Anticipated expiration: 2031-04-12

Abstract

The utility model is suitable for a medical instrument technical field provides a physical examination is with random eye chart, including first box and second box, first box and second box swing joint still include: the displacement mechanism is movably mounted with the first box body and comprises a driving assembly and a supporting assembly, and the supporting assembly drives the second box body to perform linear displacement through the driving assembly; icon transformation mechanism, with second box movable mounting, icon transformation mechanism includes first belt, third belt and drive division, be provided with the visual detection icon on first belt and the third belt, the drive division is used for the drive first belt and third belt carry out the position transform. The utility model discloses novel structure can highly mediate according to user's demand, and sets up the eyesight icon on it and can carry out the position transform.

Description

Random visual inspection table for physical examination

Technical Field

The utility model belongs to the technical field of medical instrument, especially, relate to a physical examination is with random visual acuity chart.

Background

With the development of society, more and more electronic digital products are reflected in eye curtains of people, and although the products enable the life of people to be more convenient, the probability of myopia of people is increased.

At present, an international standard visual chart is generally adopted as a visual inspection tool, the international standard visual chart takes E characters as visual targets, the stroke width and the interval of the visual targets are 1 minute visual angle, the edge width of the visual target E is 5 minutes visual angle, the gap width is 3 minutes visual angle, the visual targets are arranged in 12 rows, the increment rate of the visual targets is the blending set number, the visual acuity is the arithmetic progression (0.1-1.0), and the decimal number is used for recording.

The existing visual acuity chart basically adopts a standard visual acuity chart, the position of each icon is fixed and unchangeable, detected personnel can rely on the memory to carry out height change according to the requirements of people so as to make up the deficiency of eyesight, and the standard visual acuity chart cannot carry out height change according to the requirements of people, so that the detection result is inaccurate.

SUMMERY OF THE UTILITY MODEL

An object of the embodiment of the utility model is to provide a random visual acuity chart is used in physical examination aims at solving and can rely on each icon position of standard visual acuity chart under the memory back of the body in order to compensate not enough and the standard visual acuity chart of eyesight and can not carry out the altitude variation according to people's demand by the detected personnel, causes the unsafe problem of testing result.

The embodiment of the utility model provides a realize like this, a random eye chart is used in physical examination, including first box and second box, first box and second box swing joint still include:

the displacement mechanism is movably mounted with the first box body and comprises a driving assembly and a supporting assembly, and the supporting assembly drives the second box body to perform linear displacement through the driving assembly;

icon transformation mechanism, with second box movable mounting, icon transformation mechanism includes first belt, third belt and drive division, be provided with the visual detection icon on first belt and the third belt, the drive division is used for the drive first belt and third belt carry out the position transform.

On the basis of the technical scheme, the utility model discloses still provide following optional technical scheme:

the further technical scheme is as follows: the drive division includes power component and drive assembly, power component is used for the drive assembly moves, drive assembly is used for driving first belt and third belt carry out the position transformation.

The further technical scheme is as follows: the first belt and the third belt are arranged in an intersecting mode, and the vision detection icons arranged on the first belt and the third belt are out of order.

The further technical scheme is as follows: the power assembly comprises a second motor, the second motor is fixedly connected in the second box, a second rotating wheel is fixedly connected to an output shaft of the second motor, and the second rotating wheel is in transmission connection with the transmission assembly through a second belt.

The further technical scheme is as follows: the transmission assembly comprises a first rotating shaft, a second rotating shaft, a third rotating shaft and a fourth rotating shaft, the second rotating shaft, the third rotating shaft and the fourth rotating shaft are all connected with the second box body in a rotating mode, the first rotating shaft is connected with a first gap bridge on the second box body in a rotating mode, a fourth rotating wheel and a second bevel gear are fixedly connected to the fourth rotating shaft, the fourth rotating wheel is connected with the second rotating wheel through second belt transmission, the second bevel gear is meshed with a first bevel gear on the first rotating shaft in a fixed connection mode, the second rotating shaft is connected with the fourth rotating shaft through first belt transmission, and the third rotating shaft is connected with the first rotating shaft through third belt transmission.

The further technical scheme is as follows: the driving assembly is connected with a lead screw on the first box body in a rotating mode, a first motor is fixedly connected onto the lead screw, a second gap bridge fixedly connected with the first box body is connected onto the lead screw in a rotating mode, and the lead screw is in transmission connection with the second box body through a transmission assembly.

The further technical scheme is as follows: the supporting assembly comprises a connecting rod, an arc-shaped groove is formed in the connecting rod, a joint ball is connected in the arc-shaped groove in a rotating mode, internal threads are formed in the joint ball, the joint ball is in threaded fit with the lead screw, one end of the connecting rod is hinged in the first box body through a hinge seat, the other end of the connecting rod is hinged with a first sliding block, and the first sliding block is in sliding fit with a sliding groove formed in the second box body.

The further technical scheme is as follows: the second box body is provided with a vision plate in an embedded mode, and the vision plate is provided with a plurality of through holes.

According to the irregular vision inspection chart for physical examination provided by the embodiment of the utility model, the driving component in the displacement mechanism can drive the supporting component to complete the height adjustment of the vision chart, so as to meet the height requirement of the detected person and improve the detection precision; and the driving part in the icon changing mechanism can rotate the first belt and the third belt to change the positions of the icons on the first belt and the third belt, so that the icons on the visual chart are disordered. This kind of setting can carry out altitude mixture control and can carry out random change to the eye chart at any time according to measurement personnel's demand, makes the eye chart icon position become the unscented and can seek, improves and detects the accuracy.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural view of the middle support assembly of the present invention.

Fig. 3 is a front view of the present invention.

Notations for reference numerals: the device comprises a first box body 1, a hinged seat 2, a screw rod 3, a first sliding block 4, a second box body 5, a first gap bridge 6, a first rotating shaft 7, a second rotating shaft 8, a first rotating wheel 9, a first belt 10, a third rotating shaft 11, a second gap bridge 12, a supporting component 13, a first motor 14, a second motor 15, a second rotating wheel 16, a second belt 17, a sliding groove 18, a first bevel gear 19, a second bevel gear 20, a fourth rotating shaft 21, an internal thread 22, a joint ball 23, a connecting rod 24, an eyesight board 25, a through hole 26, a third rotating wheel 27 and a third belt 28.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The following detailed description is provided for the specific embodiments of the present invention.

Please refer to fig. 1, which is provided by an embodiment of the present invention, a random eye chart for physical examination includes a first box 1 and a second box 5, wherein the first box 1 is movably connected to the second box 5, and further includes:

the displacement mechanism is movably installed with the first box body 1, the displacement mechanism comprises a driving component and a supporting component 13, and the supporting component 13 drives the second box body 5 to perform linear displacement through the driving component;

icon transform mechanism, with second box 5 movable mounting, icon transform mechanism includes first belt 10, third belt 28 and drive division, be provided with the visual detection icon on first belt 10 and the third belt 28, the drive division is used for the drive first belt 1 and third belt 28 carry out the position transform.

When the device is used, the driving assembly in the displacement mechanism is started to drive the supporting assembly to complete the height adjustment of the second box body 5, so that the height requirement of a detected person is met, and the detection precision is improved; then, the driving part in the icon changing mechanism is started to drive the first belt 10 and the third belt 28 to rotate so as to change the positions of the icons arranged on the first belt and the third belt, and the icons on the visual chart are disordered. This kind of setting can carry out altitude mixture control and can carry out random change to the eye chart at any time according to measurement personnel's demand, makes the eye chart icon position become the unscented and can seek, improves and detects the accuracy.

Preferably, the first belt 10 and the third belt 28 are disposed across each other, and the visual detection icons disposed on the two are out of order.

Referring to fig. 1, as an embodiment of the present invention, the driving portion includes a power assembly and a transmission assembly, the power assembly is used for driving the transmission assembly to move, and the transmission assembly is used for driving the first belt 10 and the third belt 28 to change positions.

Referring to fig. 1, as an embodiment of the present invention, the power assembly includes a second motor 15, the second motor 15 is fixedly connected in the second box 5, a second rotating wheel 16 is fixedly connected to an output shaft of the second motor 5, and the second rotating wheel 16 is in transmission connection with the transmission assembly through a second belt 17.

During the use, second motor 15 drives second runner 16 and rotates, and second runner 16 further drives transmission assembly through second belt 17 and rotates to accomplish the power take off to transmission assembly.

Preferably, the power assembly can also be provided with a motor-gear drive or a motor direct drive.

Please refer to fig. 1, as an embodiment of the present invention, the transmission assembly includes a first rotating shaft 7, a second rotating shaft 8, a third rotating shaft 11 and a fourth rotating shaft 21, the second rotating shaft 8, the third rotating shaft 11 and the fourth rotating shaft 21 are all rotatably connected to the second box 5, the first rotating shaft 7 is rotatably connected to the first bridge 6 fixedly connected to the second box 5, the fourth rotating shaft 21 is fixedly connected to a fourth rotating wheel (not shown) and a second bevel gear 20, the fourth rotating wheel is rotatably connected to the second rotating wheel through a second belt 17, the second bevel gear 20 is engaged to the first bevel gear 19 fixedly connected to the first rotating shaft, the second rotating shaft 8 is rotatably connected to the fourth rotating shaft 21 through a first belt 10, and the third rotating shaft 11 is rotatably connected to the first rotating shaft 7 through a third belt 28.

When the device is used, the power assembly drives the fourth rotating shaft 21 to rotate through the second belt, the fourth rotating shaft 21 drives the first rotating shaft 7 to rotate through the first bevel gear 19 and the second bevel gear 20, and the third belt and the first belt are further driven to rotate by the first rotating shaft 7 and the fourth rotating shaft 21. The vision icon position can be changed rapidly by the arrangement, and the vision detection accuracy is improved.

Preferably, the first bevel gear 19 and the second bevel gear 20 have different numbers of teeth.

This arrangement can make the change of the vision test icon more disordered.

Referring to fig. 3, as an embodiment of the present invention, a vision plate 25 is embedded in the second box 5, and a plurality of through holes 26 are formed on the vision plate 25.

In use, this arrangement allows the user to see the visual icons on the first belt 10 and the third belt 28, which facilitates the user's visual inspection.

Preferably, the material of the vision plate 25 is acrylic or glass.

Referring to fig. 1, as an embodiment of the present invention, the driving assembly includes a screw rod 3 rotatably connected to the first box 1, a first motor 14 is fixedly connected to the screw rod 3, a second gap bridge 12 fixedly connected to the first box 1 is rotatably connected to the screw rod 3, and the screw rod 3 is in transmission connection with the second box 5 through a transmission assembly.

When the device is used, the first motor 14 drives the screw rod 3 to rotate, and the screw rod 3 further drives the second box body 5 to perform linear displacement through the supporting component 13.

Preferably, the first motor 14 is a stepper motor.

Referring to fig. 1-2, as an embodiment of the present invention, the supporting component 13 includes a connecting rod 24, an arc-shaped groove (not shown) is formed on the connecting rod 24, a joint ball 23 is rotatably connected in the arc-shaped groove, an internal thread 22 is formed on the joint ball 23, the joint ball 23 is in threaded fit with the lead screw 3, one end of the connecting rod 24 is hinged in the first box 1 through a hinge seat 2, the other end of the connecting rod 24 is hinged with a first slider 4, and the first slider 4 is in sliding fit with a sliding groove 18 formed in the second box 5.

During the use, drive assembly drives two joint balls 23 along lead screw 3 reverse motion, and joint ball 23 further drives slider 4 along spout reverse motion through connecting rod 24 to prop up second box 5. This kind of setting can be according to the demand of testing personnel's height-adjusting second box 5.

Preferably, the second box 5 can also be driven by any one of an electric telescopic rod, a hydraulic cylinder and a cylinder to perform linear motion.

The above embodiments of the present invention provide a random visual acuity chart for physical examination, the device is provided with a displacement mechanism to perform linear displacement on the visual acuity chart so as to adapt to the height of the examiner and the use habit of the doctor, specifically, the support component utilizes the driving component to complete the telescopic motion, and the support component can jack up the second box 5 when telescoping, thereby changing the height of the device; the icon change mechanism that this device set up can change the visual detection icon at any time, ensures that the person being detected can not rely on memory back down the eyesight icon position, influences the doctor and judges.

The above description is only for the specific embodiments of the present disclosure, but the scope of the present disclosure is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present disclosure, and all the changes or substitutions should be covered within the scope of the present disclosure. Therefore, the protection scope of the present disclosure shall be subject to the protection scope of the claims.

Claims

1. The utility model provides a physical examination is with random eye chart, includes first box and second box, first box and second box swing joint, its characterized in that still includes:

2. The random eye chart for physical examination of claim 1, wherein the driving part comprises a power component and a transmission component, the power component is used for driving the transmission component to move, and the transmission component is used for driving the first belt and the third belt to change positions.

3. The random eye chart for physical examination of claim 2, wherein the first belt and the third belt are disposed to cross each other and the eye test icons disposed thereon are out of order.

4. The irregular vision inspection chart for physical examination of claim 2, wherein the power assembly comprises a second motor, the second motor is fixedly connected in the second box, an output shaft of the second motor is fixedly connected with a second rotating wheel, and the second rotating wheel is in transmission connection with the transmission assembly through a second belt.

5. The random eye chart for physical examination of claim 4, wherein the transmission assembly comprises a first rotating shaft, a second rotating shaft, a third rotating shaft and a fourth rotating shaft, the second rotating shaft, the third rotating shaft and the fourth rotating shaft are all rotatably connected with the second box body, the first rotating shaft is rotatably connected with a first gap bridge fixedly connected to the second box body, a fourth rotating wheel and a second bevel gear are fixedly connected to the fourth rotating shaft, the fourth rotating wheel is connected with the second rotating wheel through a second belt in a transmission manner, the second bevel gear is meshed with a first bevel gear fixedly connected to the first rotating shaft, the second rotating shaft is connected with the fourth rotating shaft through a first belt in a transmission manner, and the third rotating shaft is connected with the first rotating shaft through a third belt in a transmission manner.

6. The irregular vision inspection chart for physical examination of claim 1, wherein the driving assembly comprises a screw rod rotatably connected to the first box, a first motor is fixedly connected to the screw rod, a second gap bridge fixedly connected to the first box is rotatably connected to the screw rod, and the screw rod is in transmission connection with the second box through a transmission assembly.

7. The irregular vision inspection chart for physical examination of claim 6, wherein the support assembly comprises a connecting rod, an arc-shaped groove is formed in the connecting rod, a joint ball is rotatably connected in the arc-shaped groove, an internal thread is formed in the joint ball, the joint ball is in threaded fit with the lead screw, one end of the connecting rod is hinged in the first box body through a hinge seat, the other end of the connecting rod is hinged with a first sliding block, and the first sliding block is in sliding fit with a sliding groove formed in the second box body.

8. The irregular vision inspection chart for physical examination of claim 1, wherein a vision plate is embedded in the second box body, and a plurality of through holes are formed in the vision plate.