CN216152356U - Mobile guide dog robot and head rotating device thereof - Google Patents

Mobile guide dog robot and head rotating device thereof Download PDF

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Publication number
CN216152356U
CN216152356U CN202121965576.3U CN202121965576U CN216152356U CN 216152356 U CN216152356 U CN 216152356U CN 202121965576 U CN202121965576 U CN 202121965576U CN 216152356 U CN216152356 U CN 216152356U
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China
Prior art keywords
motor
block
fixedly connected
rotation
rotating
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Expired - Fee Related
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CN202121965576.3U
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Chinese (zh)
Inventor
洪彬
陈鑫
林章熹
高振东
侯静
吕顺雅
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Tianjin University
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Tianjin University
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Abstract

The utility model discloses a head rotating device of a mobile guide dog robot, which comprises a first motor, a T-shaped sleeve, a first coupler, a second motor and an oblique support frame, wherein the first motor, the T-shaped sleeve, the first coupler, the second motor and the oblique support frame are sequentially connected; the T-shaped sleeve comprises a transverse sleeve and a longitudinal rod which are vertically and fixedly connected with each other; the first motor is sleeved in the transverse sleeve, and an output shaft of the first motor is fixedly connected with the head of the robot and rotates relative to the transverse sleeve; the oblique support frame comprises a motor flange frame, an oblique connecting frame and a base; the motor flange frame is fixedly connected with a flange of a second motor; the base is fixedly connected with the moving body of the robot; one end of the oblique connecting frame is vertically and fixedly connected with the motor flange frame, and the other end of the oblique connecting frame is obliquely and fixedly connected with the base; one end of the first coupler is fixedly connected with an output shaft of the first motor; the other end is fixedly connected with the longitudinal rod of the T-shaped sleeve. The utility model can lead the guide dog robot to expand the environment detection range, flexibly carry out human-oriented interaction and improve the intelligent degree of the guide dog robot.

Description

Mobile guide dog robot and head rotating device thereof
Technical Field
The utility model relates to a movable guide dog, in particular to a movable guide dog robot and a head rotating device thereof.
Background
The blind and the visually impaired are socially disadvantaged groups. The data of Chinese Union shows that at least 500 million blind people exist in China at present, and the number of blind people is rapidly increasing at a speed of 45 million per year. However, the blind guiding dog providing service for the blind is difficult to benefit most of the blind due to rigorous seed selection, great training difficulty, high cost and the like.
With the rapid development of automation technology, the rapid improvement of hardware performance and the reduction of cost, the blind guiding assistive device gradually plays a role in the daily life of the blind. At present, the blind guiding assistive device mainly comprises a blind guiding walking stick, a wearable blind guiding device, a handheld blind guiding instrument and the like. In order to relieve the inherent contradiction between huge number of blind people and rare blind guide dogs in China, various blind guide assistive devices, such as blind guide sticks, blind guide wearing assistive devices and the like, appear in the market. However, the safety and the convenience of the blind guiding aids are not sufficient, and due to the limitation of the volume of the blind guiding aids, it is difficult to configure corresponding sensors to expand more functions.
At present, in order to improve the safety and the use convenience of blind guiding auxiliary tools, mobile blind guiding dog robots with relatively simple functions are provided, the blind guiding dog robots detect the surrounding visual field through cameras on the heads and judge the walking direction, but the heads of the blind guiding dog robots are relatively fixed, so that the visual field of the cameras is relatively small, and the blind guiding dog robots cannot judge accurately if an obstacle blocks the visual field detected by the cameras.
Disclosure of Invention
In order to expand the environment detection range of the guide dog robot, flexibly perform human-oriented interaction and improve the intelligent degree of the guide dog robot, the utility model provides the mobile guide dog robot capable of improving the guide ability and the head rotating device thereof for solving the technical problems in the known technology.
The technical scheme adopted by the utility model for solving the technical problems in the prior art is as follows: a head rotating device of a mobile type guide dog robot comprises a first motor, a T-shaped sleeve, a first coupler, a second motor and an oblique support frame which are sequentially connected; the T-shaped sleeve comprises a transverse sleeve and a longitudinal rod which are vertically and fixedly connected with each other; the first motor is sleeved in the transverse sleeve, and an output shaft of the first motor is fixedly connected with the head of the robot and rotates relative to the transverse sleeve; the oblique support frame comprises a motor flange frame, an oblique connecting frame and a base; the motor flange frame is fixedly connected with a flange of a second motor; the base is fixedly connected with the moving body of the robot; one end of the oblique connecting frame is vertically and fixedly connected with the motor flange frame, and the other end of the oblique connecting frame is obliquely and fixedly connected with the base; one end of the first coupler is fixedly connected with an output shaft of the first motor; the other end is fixedly connected with the longitudinal rod of the T-shaped sleeve.
Further, the device also comprises a first rotation limiting device used for limiting the rotation angle of the first motor; the first rotation limiting device comprises two limiting blocks and a first limiting block detecting device for detecting the two limiting blocks; the two limit blocks are respectively a limit block A1 and a limit block A2, the limit block A1 and the limit block A2 are respectively installed on the inner wall of the transverse sleeve and respectively correspond to the positive and reverse rotation limit positions of the first motor; the output shaft of the first motor is fixedly connected with the first limiting block detection device; the first limit block detector sends a signal to the control system when rotating to the limit block A1 or the limit block A2; the control system sends a signal to stop the first motor from rotating.
Further, the device also comprises a first rotation stopping device for stopping the first motor from rotating; the first rotation stopping device comprises two stopping blocks and a first rotation block; the two stop blocks are respectively a stop block B1 and a stop block B2, the stop block B1 and the stop block B2 are respectively arranged on the inner wall of the transverse sleeve and respectively correspond to the positive and reverse rotation limit positions of the first motor; the output shaft of the first motor is fixedly connected with a first rotating block; when the first rotating block rotates to the stop block B1 or the stop block B2, it is stopped by the stop block B1 or the stop block B2.
Further, the motor also comprises a second rotation limiting device used for limiting the rotation angle of the second motor; the second rotation limiting device comprises two limiting blocks and a second limiting block detecting device used for detecting the two limiting blocks; the two limit blocks are respectively a limit block C1 and a limit block C2, the limit block C1 and the limit block C2 are respectively arranged on the motor flange frame and respectively correspond to the positive and reverse rotation limit positions of the second motor; the first coupling is fixedly connected with the second limiting block detection device; the second limit block detector sends a signal to the control system when rotating to the limit block C1 or the limit block C2; the control system sends a signal to stop the second motor from rotating.
Further, the device also comprises a second rotation stopping device for stopping the second motor from rotating; the second rotation stopping device comprises two stopping blocks and a second rotation block; the two stop blocks are respectively a stop block D1 and a stop block D2, the stop block D1 and the stop block D2 are respectively arranged on the motor flange frame and respectively correspond to the positive and reverse rotation limit positions of the second motor; the first coupling is fixedly connected with the second rotating block; when the second rotating block rotates to the stop block D1 or the stop block D2, the second rotating block is stopped by the stop block D1 or the stop block D2.
Furthermore, the center of the lower end of the longitudinal rod of the T-shaped sleeve is provided with a hole; a connecting shaft is fixedly sleeved in the hole; the connecting shaft is fixedly connected with the first coupler.
Further, the output shaft of the first motor is a through shaft; two ends of the through shaft are respectively and correspondingly fixedly connected with two sides of the head of the robot.
Further, the first motor and the second motor are both direct current servo motors.
Furthermore, the robot further comprises a second coupler, and an output shaft of the first motor is fixedly connected with the head of the robot through the second coupler.
The utility model also provides a mobile guide dog robot, wherein the mobile body of the mobile guide dog robot is fixedly connected with the head rotating device of the mobile guide dog robot.
The utility model has the advantages and positive effects that: the blind guiding dog robot can expand the environment detection range, flexibly interact with people, improve the intelligent degree, realize normal blind guiding under different outdoor application environments, particularly under the condition that the camera detection visual field is blocked by an obstacle, communicate with the blind person and meet various traveling requirements of the blind person.
Drawings
Fig. 1 is a schematic perspective view of a head rotating device of a mobile guide dog robot according to the present invention.
Fig. 2 is a front view of a head rotating device of a mobile guide dog robot according to the present invention.
In the figure: 1. a transverse sleeve; 2. a bearing; 3. an output shaft of the first motor; 4. a longitudinal rod; 5. a connecting shaft; 6. a plate B; 7. a motor flange frame; 8. a second motor; 9. an oblique connecting frame; 10. a base; 11. a first motor; 12. a first coupling; 13. and a limiting mounting rack.
Detailed Description
For further understanding of the contents, features and effects of the present invention, the following embodiments are enumerated in conjunction with the accompanying drawings, and the following detailed description is given:
referring to fig. 1 and 2, a head rotating device of a mobile type guide dog robot includes a first motor 11, a T-shaped sleeve, a first coupling 12, a second motor 8 and an oblique support frame, which are connected in sequence; the T-shaped sleeve comprises a transverse sleeve 1 and a longitudinal rod 4 which are vertically and fixedly connected with each other; the first motor 11 is sleeved in the transverse sleeve 1, and an output shaft 3 of the first motor is fixedly connected with the head of the robot and rotates relative to the transverse sleeve 1; the oblique support frame comprises a motor flange frame 7, an oblique connecting frame 9 and a base 10; the motor flange frame 7 is fixedly connected with a flange of a second motor 8; the base 10 is fixedly connected with a moving body of the robot; one end of the oblique connecting frame 9 is vertically and fixedly connected with the motor flange frame 7, and the other end of the oblique connecting frame is obliquely and fixedly connected with the base 10; one end of the first coupler 12 is fixedly connected with the output shaft 3 of the first motor; the other end is fixedly connected with a longitudinal rod 4 of the T-shaped sleeve.
Further, the device also comprises a first rotation limiting device for limiting the rotation angle of the first motor 11; the first rotation limiting device can comprise two limiting blocks and a first limiting block detecting device for detecting the two limiting blocks; the two limit blocks can be named as a limit block A1 and a limit block A2 respectively, a limit block A1 and a limit block A2 can be arranged on the inner wall of the transverse sleeve 1 respectively and correspond to the positive and reverse rotation limit positions of the first motor 11 respectively; the output shaft 3 of the first motor can be fixedly connected with a first limiting block detection device; the first limit block detector sends a signal to the control system when rotating to the limit block A1 or the limit block A2; the control system may send a signal to stop the rotation of the first motor 11. The first limiting block detection device can be a proximity switch or a photoelectric switch.
Further, a first rotation blocking means for blocking the rotation of the first motor 11 may be further included; the first rotation blocking means may include two stopping blocks and a first rotation block; the two stop blocks can be named as a stop block B1 and a stop block B2 respectively, and the stop block B1 and the stop block B2 can be arranged on the inner wall of the transverse sleeve 1 respectively and correspond to the positive and reverse rotation limit positions of the first motor 11 respectively; the output shaft 3 of the first motor can be fixedly connected with a first rotating block; when the first rotating block rotates to the stop block B1 or the stop block B2, it is stopped by the stop block B1 or the stop block B2.
The limiting block A1 and the limiting block A2 can be arranged in parallel corresponding to the stopping block B1 and the stopping block B2. The limiting block A1 and the limiting block A2 can be fixed by adopting a conventional technical means, the limiting block B1 and the stopping block B2 are arranged on the limiting block A1 and the limiting block A2, the stopping block B1 and the stopping block B2 are provided with mounting holes, the inner wall of the transverse sleeve 1 is provided with threaded holes, and then the transverse sleeve is connected with the transverse sleeve through bolts.
A first limiting block detection device and a first rotating block can be fixed on the output shaft 3 of the first motor by adopting a conventional technical means; for example, a mounting frame is arranged, the mounting frame is fixedly sleeved on the output shaft 3 of the first motor, and the first limiting block detection device and the first rotating block are arranged on the mounting frame.
Further, a second rotation limiting device for limiting the rotation angle of the second motor 8 can be further included; the second rotation limiting device can comprise two limiting blocks and a second limiting block detecting device used for detecting the two limiting blocks; the two limit blocks can be named as a limit block C1 and a limit block C2 respectively, and a limit block C1 and a limit block C2 can be arranged on the motor flange frame 7 respectively and correspond to the positive and reverse rotation limit positions of the second motor 8 respectively; the first coupler 12 can be fixedly connected with a second limiting block detection device; the second limit block detector sends a signal to the control system when rotating to the limit block C1 or the limit block C2; the control system sends a signal to stop the rotation of the second motor 8.
The second limiting block detection device can be a proximity switch or a photoelectric switch.
Further, a second rotation blocking device for blocking the rotation of the second motor 8 may be further included; the second rotation stopping means may comprise two stopping blocks and a second rotation block; the two stop blocks can be named as a stop block D1 and a stop block D2 respectively, the stop block D1 and the stop block D2 can be arranged on the motor flange frame 7 respectively and correspond to the positive and reverse rotation limit positions of the second motor 8 respectively; the first coupler 12 can be fixedly connected with a second rotating block; when the second rotating block rotates to the stop block D1 or the stop block D2, the second rotating block is stopped by the stop block D1 or the stop block D2.
The motor flange frame can further comprise a limiting mounting frame 13, the limiting mounting frame 13 comprises a flat plate A and a flat plate B6 which are vertically and fixedly connected with each other, the center of the flat plate A is provided with a hole and is parallel to the motor flange frame 7, and the flat plate B6 is fixedly connected with the oblique connecting frame 9; the limiting block C1 and the limiting block C2 can be respectively installed on the flat plate A of the limiting installation frame 13, and the stop block D1 and the stop block D2 can be respectively installed on the flat plate A of the limiting installation frame 13.
The limiting block C1, the limiting block C2, the stopping block D1 and the stopping block D2 can be correspondingly arranged in parallel. The limiting block C1, the limiting block C2, the stopping block D1 and the stopping block D2 can be fixed by adopting a conventional technical means, for example, mounting holes are formed in the limiting block C1, the limiting block C2, the stopping block D1 and the stopping block D2, threaded holes are formed in the flat plate A of the motor flange frame 7 or the limiting mounting frame 13, and then the motor flange frame or the stopping mounting frame is connected with the flat plate A through bolts.
A second limiting block detection device and a second rotating block can be fixed on the first coupler 12 by adopting a conventional technical means; for example, an installation frame is arranged, the installation frame is fixed on the first coupler 12, and the second limiting block detection device and the second rotating block are installed on the installation frame.
Furthermore, the center of the lower end of the longitudinal rod 4 of the T-shaped sleeve can be provided with a hole; a connecting shaft 5 can be fixedly sleeved in the hole; the connecting shaft 5 is fixedly connected with the first coupler 12.
Further, the output shaft 3 of the first motor may be a through shaft; two ends of the through shaft can be respectively and correspondingly fixedly connected with two sides of the head of the robot. Bearings 2 can be installed at two ends of the through shaft; the inner ring of the bearing 2 is fixedly connected with a through shaft of the first motor 11; the outer ring of the bearing 2 is fixedly connected with the inner wall of the transverse sleeve 1.
Further, the first motor 11 and the second motor 8 may be both dc servo motors.
Furthermore, a second coupling can be included, and the output shaft 3 of the first motor can be fixedly connected with the head of the robot through the second coupling.
The first and second couplings can be couplings of the prior art and connected with the motor shaft or the connecting shaft by conventional technical means.
The utility model also provides an embodiment of the mobile guide dog robot, wherein the mobile body is fixedly connected with the head rotating device of the mobile guide dog robot.
The working principle of the utility model is as follows: a head rotating device of a mobile guide dog robot comprises a first motor 11, a T-shaped sleeve, a first coupler 12, a second motor 8 and an oblique support frame which are sequentially connected; one end of the first coupler 12 is fixedly connected with the output shaft 3 of the first motor; the other end is fixedly connected with a longitudinal rod 4 of the T-shaped sleeve. The first motor 11 drives the T-shaped sleeve to rotate positively and negatively through the first coupler 12; the T-shaped sleeve rotates forwards and backwards to drive the head of the robot to rotate left and right; the output shaft of the second motor 8 is fixedly connected with the head of the robot and rotates relative to the transverse sleeve 1. The head of the robot is driven to rotate up and down.
Therefore, the flexible steering requirement of the robot head can be met, the visual field of a camera of the robot head can be enlarged, and obstacles can be avoided. If the head of the robot is provided with the voice recognition and the microphone, the flexible steering of the head of the robot can enable the microphone to better receive signals; the robot can communicate with the blind person, and various traveling requirements of the blind person are met.
The above-mentioned embodiments are only for illustrating the technical ideas and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to carry out the same, and the present invention shall not be limited to the embodiments, i.e. the equivalent changes or modifications made within the spirit of the present invention shall fall within the scope of the present invention.

Claims (10)

1. A head rotating device of a mobile guide dog robot is characterized by comprising a first motor, a T-shaped sleeve, a first coupler, a second motor and an oblique support frame which are sequentially connected; the T-shaped sleeve comprises a transverse sleeve and a longitudinal rod which are vertically and fixedly connected with each other; the first motor is sleeved in the transverse sleeve, and an output shaft of the first motor is fixedly connected with the head of the robot and rotates relative to the transverse sleeve; the oblique support frame comprises a motor flange frame, an oblique connecting frame and a base; the motor flange frame is fixedly connected with a flange of a second motor; the base is fixedly connected with the moving body of the robot; one end of the oblique connecting frame is vertically and fixedly connected with the motor flange frame, and the other end of the oblique connecting frame is obliquely and fixedly connected with the base; one end of the first coupler is fixedly connected with an output shaft of the first motor; the other end is fixedly connected with the longitudinal rod of the T-shaped sleeve.
2. The head rotating device of the mobile blind-guiding dog robot according to claim 1, further comprising a first rotation limiting device for limiting a rotation angle of the first motor; the first rotation limiting device comprises two limiting blocks and a first limiting block detecting device for detecting the two limiting blocks; the two limit blocks are respectively a limit block A1 and a limit block A2, the limit block A1 and the limit block A2 are respectively installed on the inner wall of the transverse sleeve and respectively correspond to the positive and reverse rotation limit positions of the first motor; the output shaft of the first motor is fixedly connected with the first limiting block detection device; the first limit block detector sends a signal to the control system when rotating to the limit block A1 or the limit block A2; the control system sends a signal to stop the first motor from rotating.
3. The head rotation device of a mobile blind-guide dog robot according to claim 1, further comprising a first rotation stopping means for stopping the first motor from rotating; the first rotation stopping device comprises two stopping blocks and a first rotation block; the two stop blocks are respectively a stop block B1 and a stop block B2, the stop block B1 and the stop block B2 are respectively arranged on the inner wall of the transverse sleeve and respectively correspond to the positive and reverse rotation limit positions of the first motor; the output shaft of the first motor is fixedly connected with a first rotating block; when the first rotating block rotates to the stop block B1 or the stop block B2, it is stopped by the stop block B1 or the stop block B2.
4. The head rotating device of the mobile blind-guiding dog robot according to claim 1, further comprising a second rotation limiting device for limiting a rotation angle of the second motor; the second rotation limiting device comprises two limiting blocks and a second limiting block detecting device used for detecting the two limiting blocks; the two limit blocks are respectively a limit block C1 and a limit block C2, the limit block C1 and the limit block C2 are respectively arranged on the motor flange frame and respectively correspond to the positive and reverse rotation limit positions of the second motor; the first coupling is fixedly connected with the second limiting block detection device; the second limit block detector sends a signal to the control system when rotating to the limit block C1 or the limit block C2; the control system sends a signal to stop the second motor from rotating.
5. The head rotation device of a mobile blind-guide dog robot according to claim 1, further comprising a second rotation-stopping device for stopping the second motor from rotating; the second rotation stopping device comprises two stopping blocks and a second rotation block; the two stop blocks are respectively a stop block D1 and a stop block D2, the stop block D1 and the stop block D2 are respectively arranged on the motor flange frame and respectively correspond to the positive and reverse rotation limit positions of the second motor; the first coupling is fixedly connected with the second rotating block; when the second rotating block rotates to the stop block D1 or the stop block D2, the second rotating block is stopped by the stop block D1 or the stop block D2.
6. The head rotating apparatus of the mobile type guide dog robot as claimed in claim 1, wherein a central hole is formed at the lower end of the longitudinal rod of the T-shaped sleeve; a connecting shaft is fixedly sleeved in the hole; the connecting shaft is fixedly connected with the first coupler.
7. The head rotating device of the mobile blind-guiding dog robot according to claim 1, wherein the output shaft of the first motor is a through shaft; two ends of the through shaft are respectively and correspondingly fixedly connected with two sides of the head of the robot.
8. The head rotating apparatus of the mobile blind-guide dog robot as claimed in claim 1, wherein the first motor and the second motor are both dc servo motors.
9. The head rotating device of the mobile blind-guiding dog robot as claimed in claim 1, further comprising a second coupling, wherein the output shaft of the first motor is fixedly connected with the head of the robot through the second coupling.
10. A mobile guide dog robot, wherein a head rotating device of the mobile guide dog robot as claimed in any one of claims 1 to 9 is fixedly connected to a mobile body.
CN202121965576.3U 2021-08-20 2021-08-20 Mobile guide dog robot and head rotating device thereof Expired - Fee Related CN216152356U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202121965576.3U CN216152356U (en) 2021-08-20 2021-08-20 Mobile guide dog robot and head rotating device thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202121965576.3U CN216152356U (en) 2021-08-20 2021-08-20 Mobile guide dog robot and head rotating device thereof

Publications (1)

Publication Number Publication Date
CN216152356U true CN216152356U (en) 2022-04-01

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CN202121965576.3U Expired - Fee Related CN216152356U (en) 2021-08-20 2021-08-20 Mobile guide dog robot and head rotating device thereof

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113618752A (en) * 2021-08-20 2021-11-09 天津大学 Mobile guide dog robot and head rotating device thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113618752A (en) * 2021-08-20 2021-11-09 天津大学 Mobile guide dog robot and head rotating device thereof

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Granted publication date: 20220401