Abstract: The disclosure provides a limit device and a robot using the same. The limit device comprises a first connecting member, a transmission rod and a second connecting member. The first connecting member comprising a first main body portion and two first connecting elements. The two first connecting elements are arranged at intervals. The two first connecting elements are respectively connected to the first main body. The transmission rod comprising a first end and a second end. The first end and the second end are arranged at intervals. The first end penetrates through one of the two first connecting elements. The second end penetrates through the other one of the two first connecting element. The second connecting member provided with two indexing buckles. The two indexing buckles are arranged at intervals, each of the indexing buckles comprises a first limiting groove and a second limiting groove.

Abstract: A rocking arm structure includes an arm body, a first wheel assembly connected to the arm body, a second wheel assembly connected to the arm body, and a shaft assembly disposed between the first wheel assembly and the second wheel assembly. The arm body can rotate relative to the main body around the shaft assembly, and drive the first wheel assembly and the second wheel assembly to revolve in a same direction around the shaft assembly. The first wheel assembly and the second wheel assembly are both steering wheel assemblies or both directional wheel assemblies.

Abstract: A driving assembly and a transfer device to allow an adjustable length of wheelbase for varying sizes of loads comprises a driving device, a driving wheel connected to the driving device rotatable by the driving device, a cantilever assembly comprising a cantilever configured for mounting to the bearing platform, and a driven wheel rotatably connected to one end of the cantilever. The other end of the cantilever is detachably connected to a fixed part of the driving device. The transfer device comprises a bearing platform and two driving assemblies.

Abstract: A locking mechanism comprises a main body, an ejector rod, a guide rod assembly, a carrier plate and a fixing assembly. The carrier plate comprises a center hole and a plurality of annular strip holes. The fixing assembly comprises a rotary disc. The center hole and the annular strip holes can lock the rotary disc in different rotation angles. The guide rod assembly limits the rotation tolerance of the carrier plate, and makes the carrier plate move up and down in the vertical direction. The rotary disc with limited rotational freedom is fixedly connected with the ejector rod, so that the locking mechanism can not only realize the linear lifting motion of the ejector rod, but also reduce the rotation angle error between the carrier plate and the ejector rod. A rotating lifting platform is also provided.

Abstract: A rotary device with automatic reset function for precise stopping and holding of a viewable rotating element without free play or slop remaining includes a conversion assembly, and a power assembly with output element and sensing assembly. The conversion assembly comprises a light-shielding structure with the light-shielding structure on the extension part. The power assembly with output element can drive the extension part to rotate synchronously with the light-shielding structure. The detachable sensing assembly overlaps the rotation path of the light-shielding structure, and the conversion assembly rotates at different angles so that the light-shielding structure and the sensing assembly will match at certain angles, so as to trigger a sensing signal and call up the output element. A display screen includes the rotary device with automatic reset function and a display assembly.

Abstract: A rotating assembly for a displaying device allowing vertical and horizontal presentation as a user requires. A displaying assembly, a transmitting assembly, and a driving assembly are included in the displaying device. The displaying assembly includes a displaying panel and a first clamping structure, the first clamping structure includes fixing structures with tenon structures in between. The transmitting assembly includes a second clamping structure and a connecting structure, the clamping structure comprises a clamping joint, the clamping joint is coupled to the tenon structure, and fixing grooves are defined on the second clamping structure. The fixing grooves are matched with the fixing structures, an end of the connecting structure is fixedly connected to the second clamping structure. The driving assembly includes a rotating driving member, an output shaft of the driving member is connected to the connecting structure.

Abstract: A rotating device which releases in the event of overload caused by external forceful counter-rotation includes positioning assemblies, a connecting assembly, and a driving assembly. Each positioning assembly includes a positioning member and sleeving member, part of the positioning member is positioned in the sleeving member and the positioning member abuts a first abutting portion in the sleeving member. The connecting assembly has a first end carrying mounting grooves, the mounting grooves themselves carrying the positioning assemblies. The driving assembly is connected to the first end, and when an external force of a certain magnitude is received by the positioning member, the positioning member moves into the sleeving member, and the driving assembly is thereby separated from and the positioning member, preventing the driving assembly from being damaged. A rotatable display apparatus with the rotating device is also disclosed.

Abstract: An energy absorbing structure comprises a first connecting member, a second connecting member, a brittle connecting member and an elastic buffering element. The first connecting member comprises a first end portion, and the first end portion defines a first accommodating cavity. The second connecting member comprise a second end portion, the second end portion defines a second accommodating cavity, and the first accommodating cavity communicates with the second accommodating cavity to form a telescopic cavity. The first connecting member and the second connecting member are connected by the brittle connecting member, the brittle connecting member is configured for breaking during a collision to absorb the energy generated by the collision. The elastic buffering element is arranged in the telescopic cavity, and the elastic buffering element is configured to be compressed by the first connecting member and the second connecting element together to deform and absorb energy during a collision.

Abstract: A rocking arm structure includes an arm body, a first wheel assembly connected to the arm body, a second wheel assembly connected to the arm body, and a shaft assembly disposed between the first wheel assembly and the second wheel assembly. The arm body can rotate relative to the main body around the shaft assembly, and drive the first wheel assembly and the second wheel assembly to revolve in a same direction around the shaft assembly. The first wheel assembly and the second wheel assembly are both steering wheel assemblies or both directional wheel assemblies.

Abstract: A lifting structure operating precisely and stably at all stages of a lifting and lowering action includes a lifting assembly and a driving assembly. The lifting assembly includes two first links, two second links, and two seats. A first connecting arm of each first link has first and second ends, the first end having a first gear structure. A second connecting arm of each second link has third and fourth ends, a second and complementary gear structure being provided on the third end. The first gear structures are engaged and the second gear structures are engaged. The second end is rotatably connected to the fourth end through one of the two seats. The driving assembly can drive the two seats towards each other to perform lifting or drive them away from each other to perform lowering.

Abstract: The disclosure provides a limit device and a robot using the same. The limit device comprises a first connecting member, a transmission rod and a second connecting member. The first connecting member comprising a first main body portion and two first connecting elements. The two first connecting elements are arranged at intervals. The two first connecting elements are respectively connected to the first main body. The transmission rod comprising a first end and a second end. The first end and the second end are arranged at intervals. The first end penetrates through one of the two first connecting elements. The second end penetrates through the other one of the two first connecting element. The second connecting member provided with two indexing buckles. The two indexing buckles are arranged at intervals, each of the indexing buckles comprises a first limiting groove and a second limiting groove.

Abstract: A structure for holding a battery on an automated guided vehicle (AGV) so as to allow easy and convenient battery replacement includes two fixed supports and a bracket. The bracket is connected between the two supports and each support defines a vertical groove and two horizontal grooves. Two sliders at the ends of the bracket are insertable into either horizontal groove. The two sliders can move down along the vertical groove together until the bracket makes contact with the battery and holds it in place. The two sliders can move up along the vertical groove and sideways into the horizontal grooves, thereby unlatching and releasing the battery for rapid replacement. An AGV using the structure is also disclosed.

Abstract: Sensible wired earphones are electrically connected with information equipment and contain: at least one body, a controller, and a telecommunication connector. Each of the at least one body includes a sensing unit, a micro-control unit, a casing, and a speaker. The sensing unit is configured to acquire user's photoplethysmography (PPG) signals, the micro-control unit is electrically connected with said each body, the sensing unit, and the telecommunication connector which is electrically coupled with the information equipment. The micro-control unit is configured to process and analyze the user's PPG signals, and the user's PPG signals are processed and analyzed by the information equipment. The controller includes a controlling interface electrically connected with the micro-control unit, the controller is electrically in connection with the telecommunication connector via a first electric wire, and said each body is electrically connected with the micro-control unit via a second electric wire.

Abstract: A dual audio earphone contains: an enclosure and a speaker unit. The enclosure includes a first chamber in which the speaker unit is housed, between a sound output end of the speaker unit and the enclosure is defined a cavity, the enclosure also includes a sound hole, and the speaker unit includes a holder, a dynamic speaker, a piezoelectric speaker, and a circuit unit. The holder has a bottom, a peripheral fence surrounding the bottom so as to form a second chamber, and an opening. The piezoelectric speaker is housed in the opening, and between the piezoelectric speaker and the sound hole is defined the cavity. The dynamic speaker is accommodated in the second chamber and is located between the piezoelectric speaker and the bottom, and the circuit unit is arranged outside the holder and is electrically connected with the dynamic speaker and the piezoelectric speaker.