CN218355089U

CN218355089U - Eyesight protection device

Info

Publication number: CN218355089U
Application number: CN202221921734.XU
Authority: CN
Inventors: 王宇炜; 匡庆明
Original assignee: Ningbo Shangchen Wulian Technology Co ltd
Current assignee: Ningbo Shangchen Wulian Technology Co ltd
Priority date: 2022-07-25
Filing date: 2022-07-25
Publication date: 2023-01-24
Anticipated expiration: 2032-07-25

Abstract

The utility model discloses an eyesight protection device, which comprises a shell, wherein the bottom of the shell is provided with a walking wheel, a driving mechanism for driving the walking wheel is arranged in the shell, the front part of the shell is provided with a back plate for supporting reading materials, the bottom of the back plate is connected with the front part of the shell through a rotating shaft, and the driving shaft is used for driving a driving device for adjusting the angle of the back plate; the front part of the shell is also provided with a distance measuring sensor for detecting the distance between the reading material and the human eyes. Through ranging sensor and actuating mechanism's cooperation, can detect the interval of people's eyes to reading thing, and adjust reading thing and people's eye's interval according to the interval, simultaneously through pivot and drive arrangement's cooperation, let the angle of placing of reading thing on the backplate can carry out the angle modulation along with reading thing and people's eye's interval change, can let reading face and face roughly parallel through such regulation, the distance of the up-and-down eyes of reading face is roughly equal, thereby improve the comfort level of reading, avoid eyes tired in advance.

Description

Eyesight protection device

Technical Field

The utility model relates to a reading strutting arrangement specifically is a mobilizable eyesight protection device.

Background

The reading back plate is a back plate which solves the problems of cervical vertebra, lumbar vertebra, shoulder strain and the like caused by long-term bending over on a desk and has the functions of fixing books, lifting, rotating and the like. People can be by the autonomic reading matter that is close to when reading time is too long, and then form the custom of reading closely, and the backplate of current reading includes the backplate of base, fixed books, connects the bracing piece of base and backplate, and bracing piece and backplate use the multidirectional hub connection, and this structure can only realize the rotation of backplate through the multidirectional hub, adjusts the angle of backplate, can only realize simple functions such as fixed, lift, can not carry out the adaptability to reading the interval between matter and the people and adjust.

SUMMERY OF THE UTILITY MODEL

The utility model provides a can keep with eye distance, possess the eyesight protection device of intelligent removal.

The vision protection device of the utility model comprises a shell, wherein the bottom of the shell is provided with a walking wheel, a driving mechanism for driving the walking wheel is arranged in the shell, the front part of the shell is provided with a back plate for supporting a reading material, the bottom of the back plate is connected with the front part of the shell through a rotating shaft, and the driving shaft is used for driving a driving device for adjusting the angle of the back plate; the front part of the shell is also provided with a distance measuring sensor for detecting the distance between the reading material and the human eyes.

The vision protection device can detect the distance between the human eyes and the reading material through the matching of the distance measurement sensor and the driving mechanism, and adjust the distance between the reading material and the human eyes according to the distance, for example, when the distance measurement sensor detects that the distance between the human eyes and the reading material is too close during writing over a desk, the vision protection device is driven to retreat; when sitting straight, the distance measuring sensor detects that the distance between the human eyes and the reading object is too far, and the vision protection device is driven to move forwards; when the user leans against the chair back, the eyesight protection device moves forwards to the forefront of the desk, so that the distance between the eyes and the reading materials is always within the eyesight protection range, the reader not only keeps good visual range, but also has a free reading posture, and the fatigue of the reader in advance due to the rigid reading posture is avoided; simultaneously through the cooperation of pivot and drive arrangement, let the angle of placing of reading on the backplate can carry out angle modulation along with reading and the interval change of people's eye, for example when the stadia is at 32CM, the angle that the reading erects is 54 degrees (lie flat and calculate 0 degree on the desktop), when the stadia is 55CM, the angle that the reading erects is 85 degrees, nearly upright (90 degrees), can let reading face and face be roughly parallel through such regulation, the distance of reading face from top to bottom to eyes is roughly equal, thereby improve the comfort level of reading, avoid eyes tired in advance.

Drawings

Fig. 1 is a schematic structural view of a vision protection device.

Detailed Description

As shown in fig. 1, a vision protection device comprises a shell 1, wherein walking wheels 2 are arranged at the bottom of the shell, a driving mechanism 3 for driving the walking wheels is arranged in the shell, a back plate 4 for supporting a reading material is arranged at the front part of the shell, the bottom of the back plate is connected with the front part of the shell through a rotating shaft, and a driving device 5 for driving the rotating shaft to adjust the angle of the back plate; the front part of the shell is also provided with a distance measuring sensor for detecting the distance between the reading material and the human eyes. The distance between the human eyes and the reading material can be detected through the matching of the distance measuring sensor and the driving mechanism, and the distance between the reading material and the human eyes is adjusted according to the distance, for example, when the distance measuring sensor detects that the distance between the human eyes and the reading material is too close during the copy over the desk, the vision protection device is driven to retreat; when sitting straight, the distance measuring sensor detects that the distance between the human eyes and the reading object is too far, and drives the eyesight protection device to move forwards; when the user leans against the chair back, the eyesight protection device moves forwards to the forefront of the desk, so that the distance between the eyes and the reading materials is always within the eyesight protection range, the reader not only keeps good visual range, but also has a free reading posture, and the fatigue of the reader in advance due to the rigid reading posture is avoided; meanwhile, through the matching of the rotating shaft and the driving device, the placing angle of the reading materials on the back plate can be adjusted along with the change of the distance between the reading materials and the human eyes, for example, when the visual distance is 32CM, the standing angle of the reading materials is 54 degrees (0 degree when the reading materials are laid on a table), when the visual distance is 55CM, the standing angle of the reading materials is 85 degrees and almost close to standing (90 degrees), the reading surface can be approximately parallel to the face through the adjustment, the distances from the upper part to the lower part of the reading surface to the eyes are approximately equal, the reading comfort is improved, and the eyes are prevented from being tired in advance.

The rotation angle of the back plate around the rotating shaft is 0-90 degrees, when the back plate is parallel to the horizontal plane, the rotation angle is 0 degree, and when the back plate is vertical to the horizontal plane, the rotation angle is 90 degrees.

The driving mechanism 3 comprises a worm gear 31, a walking motor 32 for driving the worm gear and a transmission shaft 33, walking wheels are installed at two ends of the transmission shaft, and the middle of the transmission shaft is connected with the worm gear in a matching mode. The power of the forward rotation or the reverse rotation of the walking motor is transmitted to the transmission shaft through the worm gear and worm, so that the walking wheel is driven to rotate forward or reversely, the forward movement or the backward movement of the eyesight protection device is realized, and when the motor stops, the worm gear and worm also has the braking function. Two walking wheels at the rear part of the shell are connected with the transmission shaft to form walking power wheels, and two walking wheels at the front part of the shell are walking driven wheels which rotate freely and play a role in walking and supporting.

The driving device 5 comprises a rotating arm motor 51 and a gearbox 52, a power gear 53 is mounted on an output shaft of the gearbox, and a driven gear 54 matched with the power gear is arranged at the end part of the back plate and is matched and connected with the rotating shaft. Through the cooperation of rocking arm motor and gearbox, utilize gear drive to realize the backplate and revolve the rotation of axes of rotation, and then realize the angle modulation of backplate.

Still install the potentiometre in the casing, the potentiometre passes through the potentiometre and combines the head to be connected with the one end of backplate, and the backplate can drive the potentiometre rotation through potentiometre combination head when rotating. When the back plate rotates around the rotating shaft, the potentiometer combining head drives the rotary potentiometer, and the potential on the potentiometer is subjected to AD (analog-to-digital) conversion, so that the angle of the current back plate can be calculated, and the angle can be controlled and adjusted.

The backplate rotates under the drive of pivot, places the reading thing on the backplate inevitable and can take place displacement or landing, consequently, the backplate bottom is equipped with the holder that can cooperate the backplate centre gripping reading thing that upwards extends, and centre gripping that can be stable or spacing reading thing prevent that reading thing from taking place the landing at removal or backplate rotation in-process.

If this eyesight protection device places when the desktop, because of the desktop edge does not have spacing baffle, the eyesight protection device probably drops from the desktop when walking around, for this reason, but the edge detection optoelectronic coupler at detectable desktop edge is all installed to the front and back both sides of casing, prevents that eyesight protection device from dropping from the desktop.

The inboard front portion of casing is provided with control circuit board, control circuit board all is connected with distance measuring sensor, edge detection photoelectric coupler, the potentiometre, actuating mechanism and drive arrangement, control circuit board is used for receiving distance measuring sensor, the signal of edge detection photoelectric coupler, the potentiometre, and control actuating mechanism and drive arrangement rotate, receive distance measuring sensor through control circuit board, the edge detects the photoelectric coupler, the signal of potentiometre is handled and is sent control command to actuating mechanism and drive arrangement and control the drive, control circuit board also is connected with audible and visual alarm device in addition, set for continuous reading time through control circuit board, carry out acousto-optic warning when reading time exceedes to set for continuous reading time.

The control circuit board is provided with a switch key, the shell is provided with a switch window for the switch key to extend out, and the switch control of the eyesight protection device is realized through the switch key.

The lithium battery used for supplying power to the distance measuring sensor, the edge detection photoelectric coupler, the potentiometer, the driving mechanism, the driving device and the control circuit board is further installed in the shell, a charging socket used for charging the lithium battery is arranged on one side of the shell, and in addition, the distance measuring sensor, the edge detection photoelectric coupler, the potentiometer, the driving mechanism, the driving device and the control circuit board can also be supplied with power in a wire mode.

Claims

1. A vision protection device is characterized by comprising a shell (1), wherein the bottom of the shell is provided with a travelling wheel (2), a driving mechanism (3) for driving the travelling wheel is arranged in the shell, the front part of the shell is provided with a back plate (4) for supporting reading materials, the bottom of the back plate is connected with the front part of the shell through a rotating shaft, and a driving device (5) for driving the rotating shaft to adjust the angle of the back plate is arranged; the front part of the shell is also provided with a distance measuring sensor for detecting the distance between the reading material and the human eyes.

2. The vision protection device of claim 1, wherein the driving mechanism (3) comprises a worm gear (31), a walking motor (32) for driving the worm gear, and a transmission shaft (33), wherein the two ends of the transmission shaft are provided with walking wheels, and the middle part of the transmission shaft is in fit connection with the worm gear.

3. A vision protection device according to claim 1, wherein the drive means (5) comprises a rotary arm motor (51) and a gearbox (52), a power gear (53) is mounted on an output shaft of the gearbox, and a driven gear (54) matched with the power gear is arranged at the end part of the back plate and is matched and connected with the rotary shaft.

4. A vision protection device as claimed in claim 1, wherein a potentiometer is further mounted in the housing, the potentiometer is connected to one end of the back plate via a potentiometer engaging head, and the back plate is rotatable via the potentiometer engaging head to rotate the potentiometer.

5. The vision protection device of claim 1, wherein the bottom of the back plate is provided with an upwardly extending holder that can engage the back plate to hold a reading material.

6. The vision protection device of claim 1, wherein edge detection photo-couplers for detecting the edge of the tabletop are mounted on both the front and back sides of the housing.

7. The vision protection device of claim 1, wherein the back plate is rotated about the axis of rotation by an angle of 0-90 degrees.

8. The vision protection device of any one of claims 1-7, wherein a control circuit board is disposed at the front part of the inner side of the housing, the control circuit board is connected with the distance measuring sensor, the edge detecting photocoupler, the potentiometer, the driving mechanism and the driving device, and the control circuit board is used for receiving signals of the distance measuring sensor, the edge detecting photocoupler and the potentiometer and controlling the driving mechanism and the driving device to rotate.

9. A vision protection device as claimed in claim 8, wherein the circuit board is provided with a switch button, and the housing is provided with a switch window for the switch button to extend.

10. A vision protection device as claimed in claim 8, wherein a lithium battery for supplying power to the distance measuring sensor, the edge detecting photoelectric coupler, the potentiometer, the driving mechanism, the driving device and the control circuit board is further installed in the casing, and a charging socket for charging the lithium battery is provided on one side of the casing.