Abstract: An extendable and a retractable vehicle step may comprise one or more assemblies. An assembly may comprise a first support arm pivotably coupled to a second support arm for extending and retracting a vehicle step. The second support arm may pass through a sleeve that may support and/or guide the second support arm. The sleeve may be rotatable and/or may comprise one or more rollers that may facilitate movement of the second support arm.

Abstract: An extendable and a retractable vehicle step may comprise one or more assemblies. An assembly may comprise a first support arm pivotably coupled to a second support arm for extending and retracting a vehicle step. The second support arm may pass through a sleeve that may support and/or guide the second support arm. The sleeve may be rotatable and/or may comprise one or more rollers that may facilitate movement of the second support arm.

Abstract: Disclosed are a rocker footboard device and a vehicle. The rocker footboard device includes a mounting seat, a rotary driving device, a first connecting rod, a second connecting rod, a sliding sleeve, and a footboard, where the rotary driving device is provided with a driving shaft, the sliding sleeve is pivotally connected with the mounting seat through a second pivot shaft, and a middle segment of the second connecting rod is slidably provided on the sliding sleeve. The rotary driving device drives the first connecting rod to rotate around the driving shaft, and the first connecting rod drives the second connecting rod to slide in the sliding sleeve. As a result, the second connecting rod is extended or retracted, thereby extending or retracting the footboard. Compared with the four-rod linkage mechanism, the rocker footboard device has the simpler structure, smaller size, lower manufacturing cost, and higher production efficiency.

Abstract: Disclosed are a connecting rod structure, a footboard device, and a vehicle including same. A first connecting rod includes a first end pivotally connected with a second seat through a first pivot shaft, and a second end hinged with a first end of a second connecting rod; a spring includes a first end pivotally connected with the second seat through a second pivot shaft, and a second end pivotally connected with the first connecting rod or the second connecting rod through a third pivot shaft; a distance between an axis of the first pivot shaft and an axis of the third pivot shaft is a first distance, and a distance between the axis of the first pivot shaft and an axis of the second pivot shaft is a second distance; and a sum of the first distance and a free length of the spring is greater than the second distance.

Abstract: The present invention belongs to the technical field of analysis and detection and provides a method for detecting a selenoamino acid in a selenoprotein. The detection method includes: (1): mixing 10-30 mg of a selenoprotein sample with hydrochloric acid, and hydrolyzing with microwaves at 140-170° C. for 10-40 min to obtain a hydrolysate; (2): adjusting pH of the hydrolysate to 6-8 to obtain a pretreated solution; and, (3): detecting a selenoamino acid in the pretreated solution with high performance liquid chromatography-hydride generation-atomic fluorescence spectrometry (HPLC-HG-AFS) to obtain a content of the selenoamino acid. The method is simple in operation and provides an accurate and reliable result, and also reduces time and cost.

Abstract: A luggage rack able to illuminate includes a body portion (101), fixed on a top of a vehicle. A plurality of illuminators (103) is further included and arranged with the illuminating luggage rack. By arranging the illuminators (103), surrounding vehicles and drivers may easily notice the vehicle having the illuminating luggage rack, ensuring driving safety.

Abstract: A roof luggage rack, a roof luggage rack assembly, and a vehicle having a roof luggage rack are provided. The roof luggage rack includes a body portion, defining a receiving chamber, and an illuminator, arranged in the receiving chamber. According to present the roof luggage rack, a lighting effect is provided to illuminate a side of the vehicle. A driver can observe a traffic condition or check articles carried on the luggage rack at night. Further, the luggage rack may have a dazzling lighting effect, and the vehicle may have an aesthetic appearance.

Abstract: The present disclosure provides a roof luggage rack and an article separation device. When used as the roof luggage rack, the device may include a cross rod assembly to carry articles; a longitudinal rod to fix on a vehicle roof; a locking buckle, which has two ends respectively buckling with the cross rod assembly and the longitudinal rod in a detachable manner, such that the cross rod assembly and the longitudinal rod may be fixed in a detachable manner. The roof luggage rack and the article separation device may be combined and connected by different means to achieve various purposes, overcoming a problem of the device having a single usage purpose.

Abstract: The present invention belongs to the technical field of analysis and detection and provides a method for detecting a selenoamino acid in a selenoprotein. The detection method includes: (1): mixing 10-30 mg of a selenoprotein sample with hydrochloric acid, and hydrolyzing with microwaves at 140-170° C. for 10-40 min to obtain a hydrolysate; (2): adjusting pH of the hydrolysate to 6-8 to obtain a pretreated solution; and, (3): detecting a selenoamino acid in the pretreated solution with high performance liquid chromatography-hydride generation-atomic fluorescence spectrometry (HPLC-HG-AFS) to obtain a content of the selenoamino acid. The method is simple in operation and provides an accurate and reliable result, and also reduces time and cost.

Abstract: A fully transparent luggage rack having a color illuminant includes a transparent longitudinal rod, an illuminant, a mounting base, a wire and a hollow bolt. The longitudinal rod is connected to the mounting base; the illuminant is arranged in the longitudinal rod; the mounting base is also fixed to a vehicle roof by means of the hollow bolt; and the wire penetrates the hollow bolt and is connected to the illuminant. A vehicle which is arranged with the fully transparent luggage rack having the color illuminant may be provided.

Abstract: A connecting apparatus and a bolt assembly are provided. The connecting apparatus includes a first connector defining a first through-hole, a second connector defining a second through-hole, a stopping member defining a stopping hole, an L-shaped bolt and a nut fitted about the L-shaped bolt. The L-shaped bolt includes a screw and an elbow connecting to the screw, wherein the elbow has a stopping surface extending along a lengthwise direction of the elbow, the L-shaped bolt is extended through the first through-hole, the stopping hole and the second through-hole successively and matches with the nut to connect the first connector and the second connector together, when the nut is rotated into the screw, the stopping surface and an inner wall of the stopping hole cooperate with each other to prevent the L-shaped bolt from rotating along an axis of the screw.

Abstract: The present invention discloses a car running board and car, comprising a first running board body, a second running board body and at least one car installation support; the first running board body is telescopically connected with the second running board body; the car installation support is rigidly connected with the first running board body and/or the second running board body on one end and with the car on the other end. Through the above method, the car running board structure of the present invention can change flexibly and contract to reduce volume during the transport, thus saving both the transport cost and storage space.

Abstract: A vehicle step for a vehicle is provided. The vehicle step includes a bracket, a first step member, a second step member, a first power mechanism and a second power mechanism. The first step member and the second step member are separately mounted on the bracket. The first power mechanism is electrically connected to the first step member and configured to drive the first step member to rotate from a first position to a second position. The second power mechanism is electrically connected to the second step member and configured to drive the second step member to rotate from the first position to the second position.

Abstract: A roof luggage rack, a roof luggage rack assembly, and a vehicle having a roof luggage rack are provided. The roof luggage rack includes a body portion, defining a receiving chamber, and an illuminator, arranged in the receiving chamber. According to present the roof luggage rack, a lighting effect is provided to illuminate a side of the vehicle. A driver can observe a traffic condition or check articles carried on the luggage rack at night. Further, the luggage rack may have a dazzling lighting effect, and the vehicle may have an aesthetic appearance.

Abstract: A fully transparent luggage rack having a color illuminant includes a transparent longitudinal rod, an illuminant, a mounting base, a wire and a hollow bolt. The longitudinal rod is connected to the mounting base; the illuminant is arranged in the longitudinal rod; the mounting base is also fixed to a vehicle roof by means of the hollow bolt; and the wire penetrates the hollow bolt and is connected to the illuminant. A vehicle which is arranged with the fully transparent luggage rack having the color illuminant may be provided.

Abstract: A luggage rack able to illuminate includes a body portion (101), fixed on a top of a vehicle. A plurality of illuminators (103) is further included and arranged with the illuminating luggage rack. By arranging the illuminators (103), surrounding vehicles and drivers may easily notice the vehicle having the illuminating luggage rack, ensuring driving safety.

Abstract: The present disclosure provides a roof luggage rack and an article separation device. When used as the roof luggage rack, the device may include a cross rod assembly to carry articles; a longitudinal rod to fix on a vehicle roof; a locking buckle, which has two ends respectively buckling with the cross rod assembly and the longitudinal rod in a detachable manner, such that the cross rod assembly and the longitudinal rod may be fixed in a detachable manner. The roof luggage rack and the article separation device may be combined and connected by different means to achieve various purposes, overcoming a problem of the device having a single usage purpose.

Abstract: The present disclosure provides a roof luggage rack for a vehicle. The roof luggage rack includes a luggage rack body defining a mounting hole; a fastener fixing the luggage rack body on a roof of the vehicle; and a mounting cover engaged in the mounting hole to seal the luggage rack body.

Abstract: The present invention discloses a car running board and car, comprising a first running board body, a second running board body and at least one car installation support; the first running board body is telescopically connected with the second running board body; the car installation support is rigidly connected with the first running board body and/or the second running board body on one end and with the car on the other end. Through the above method, the car running board structure of the present invention can change flexibly and contract to reduce volume during the transport, thus saving both the transport cost and storage space.

Abstract: The present disclosure provides a protection bar for a front of vehicle, comprising: two vertical portions, connected to the front of vehicle wherein a distance is defined between the two vertical portions, the distance is variable according to different positions of the two vertical portions; a first horizontal portion comprising a plurality of first walls to define a first chamber, wherein the first horizontal portion is detachably assembled on the two vertical portions by two first connection components each connecting a respective first wall of the first horizontal portion and a corresponding one of the two vertical portions.