Dewertokin Technology Group Co., Ltd.

Okin Refined Electric Technology Co., Ltd

Zhejiang Sunny Optics Co., Ltd.

Hangzhou Yue Fu Si Technology Co., Ltd.

Long Li

Fujian Dai

Liefeng Zhao

Bin Shen

Liming Yang

Kangming Tao

Pengfei He

Minglong Lei

Qiqi Ye

Chenjian Lei

Guowei Wang

Jianke Wenren

Weiyao Zhou

Guangjiao Zhang

Shiguang Xue

Baowei Xu

Weili Zhou

Hui Liu

Xiaoting Geng

Saifeng Lyu

Ying Li

Xinhan Wang

Haoxiang Zhu

Guohai Tang

Tianxiang Xing

Zhenjie Zhu

Zhibin Ao

Cheng Chen

Zuochao Lv

Yiting Ye

Chunqi Chen

Yongbiao Wu

Bo Liu

Congwei Xu

Hongqing He

Provided are a chair frame and a chair. The chair frame supports a human waist and back by using a waist support assembly and supports human legs and feet by using a footstool assembly. Meanwhile, when the waist support assembly is unfolded, driven by a second support rod, a second end of a first support rod can swing toward the footstool assembly with a junction between a first end of the first support rod and the second support rod as a rotation center to increase an included angle between a waist support bracket and a seat cushion bracket, that is, increasing an unfolded angle of a backrest and achieving the zero gravity effect. The chair can improve the chair comfort by applying the preceding chair frame.

Chair frame and chair

Provided are an elderly chair support and an elderly chair. A support assembly of the elderly chair support includes a support plate () and an anti-torsion tube () fixedly connected to the support plate (); two ends of a first lifting rod () are pivoted to the support plate () and a base () respectively, and two ends of a second lifting rod () are pivoted to the support plate () and the base () respectively; and a first drive assembly is capable of driving a power rod () to rotate relative to the support plate () to have a first position and a second position, in the case where the power rod () is at the first position, a leg assembly () stretches and the anti-torsion tube () abuts against the base (), in the case where the power rod () is at the second position, the leg assembly () retracts and the anti-torsion tube () has a first distance from the base (), and in the case where the power rod () is at the second position, the first drive assembly is capable of driving the power rod () to drive the support plate () to move synchronously so that the support plate () has a second distance from the base (). The elderly chair support and the elderly chair have high stability and are simple in structure.

Elderly chair support and elderly chair

Provided are an adjustable bracket and a high-feet sofa. In the adjustable bracket, the transmission rod is in a straight rod structure. A first end of the transmission rod is connected to the fourth connection rod. A second end of the transmission rod is connected to the pedal rod group. The present disclosure provides an adjustable bracket. In the case of the same sitting height, the adjustable mechanism of a sofa has a more compact structure so that the cleaning work of a mop, a vacuum cleaner, or a floor-sweeping robot is facilitated. Moreover, the height of the sofa from the ground is higher, making the sofa more attractive.

Adjustable bracket and high-feet sofa

The present disclosure discloses an optical imaging lens assembly including, sequentially from an object side to an image side along an optical axis, a first lens having negative refractive power; a prism having an incident surface, a reflecting surface, and an exit surface, and an angle between the reflecting surface and the optical axis being 45°; a stop; a second lens having positive refractive power; a third lens having refractive power; a fourth lens having positive refractive power; and a fifth lens having negative refractive power.

Optical imaging lens assembly

The present application relates to a noise-reduced power device, a noise reduction mechanism and a noise reduction method, and particularly to the technical field of a power device. The noise-reduced power device includes a housing, a transmission assembly is provided in the housing, a power input end of the transmission assembly is connected to a motor, a power output end thereof is connected to a screw rod extending out of the housing, a gap is formed between the motor and an inner wall of the housing, and a noise reduction mechanism is provided around the motor.

Noise-reduced power device, noise reduction mechanism, and noise reduction method

A folding table stand includes a crossbeam and at least two table legs. Each table leg of the at least two table legs has a folded state and an in-use state for supporting the crossbeam. The each table leg is rotatable relative to the crossbeam so that the each table leg can switch between the in-use state and the folded state. The lower end of the each table leg is connected to a foot for being supported by the ground. The crossbeam is provided with a first accommodating slot. The foot closest to the crossbeam is at least partially accommodated in the first accommodating slot when the at least two table legs are both in a folded state.

Folding table frame and folding table

The present application relates to one-motor-duel-drive synchronous drive device. The drive device includes: a housing, wherein the housing is hollow, a telescopic mechanism is connected to the housing, the telescopic mechanism includes a screw rod, and one end of the screw rod extends into the housing; a transmission mechanism, wherein the transmission mechanism comprises a first transmission component rotatably connected to an inner wall of the housing, a second transmission component is fixedly connected to the screw rod, and the first transmission component and the second transmission component are staggered gears engaged with each other; a linkage lever provided between the housings, wherein two ends of the linkage lever are connected to the first transmission component, respectively; and a drive mechanism configured to act on the linkage lever to rotate the linkage lever.

One-motor-duel-drive synchronous drive device

A seat frame includes a base, a driving member and a stretching member. The driving member and the stretching member are disposed on the base. The stretching member includes backrest assemblies, cushion support assemblies and leg rest plate assemblies which are positioned on left and right sides of the base and set in pairs. A front end and a rear end of the cushion support assembly are hinged with one end of the backrest assembly and one end of the leg rest plate assembly respectively. When the seat frame is in a television (TV) posture and a lying posture, and the leg rest plate frame is inclined upward with respect to a horizontal plane.

Seat frame

The present disclosure discloses an optical imaging lens assembly including, sequentially from an object side to an image side along an optical axis, a first lens having negative refractive power; a first prism including an incident surface, a reflecting surface, and an exit surface, and an angle between the reflecting surface of the first prism and the optical axis being 45°; a stop; a second lens having positive refractive power; a third lens having refractive power; a fourth lens having positive refractive power; a fifth lens having negative refractive power; and a second prism including an incident surface, a reflecting surface, and an exit surface, and an angle between the reflecting surface of the second prism and the optical axis being 45°. A total effective focal length f and a maximum field-of-view FOV of the optical imaging lens assembly satisfy: 2.50 mm<f*tan(FOV/2)<4.00 mm.

A camera lens group sequentially includes, from an object side to an image side along an optical axis: a first lens (E) with a refractive power, wherein an object-side surface (S) thereof is a concave surface, while an image-side surface (S) is a convex surface; a second lens (E) with a refractive power, wherein an object-side surface (S) is a convex surface, while an image-side surface (S) is a concave surface; a third lens (E) with a positive refractive power; a fourth lens (E) with a refractive power; a fifth lens (E) with a positive refractive power, wherein an object-side surface (S) thereof is a concave surface, while an image-side surface (S) is a convex surface; and a sixth lens (E) with a negative refractive power, wherein an object-side surface (S) thereof is a convex surface, while an image-side surface (S) is a concave surface. A half ImgH of a diagonal length of an effective pixel region on an imaging surface (S) of the camera lens group meets ImgH>4.60 mm.

Camera lens group

Provided are an ottoman linkage device, a frame body, and a seat. The ottoman linkage device includes an upper link, a lower link, a middle ottoman link, a first front ottoman link, a second front ottoman link, a first connection link, a second connection link, a front ottoman bracket, and a middle ottoman bracket. The upper link or the lower link is rotatable under a driving force to make the ottoman linkage device unfold or fold. By changing the length of the first connection link and the length of the second connection link, the magnitude of the driving force of the first connection link can be adjusted.

Ottoman linkage device, frame body, and seat

The present disclosure discloses an optical imaging lens assembly including, sequentially from an object side to an image side along an optical axis, a first lens having positive refractive power and a concave image-side surface; a second lens having refractive power and a concave image-side surface; a third lens having refractive power; a fourth lens having refractive power; a fifth lens having positive refractive power; a sixth lens having refractive power, a convex object-side surface and a concave image-side surface; and a seventh lens having refractive power and a concave object-side surface. Half of a maximum field-of-view HFOV of the optical imaging lens assembly and a total effective focal length f of the optical imaging lens assembly satisfy: tan(HFOV)*f≥4.34 mm.

The present disclosure discloses a camera lens group including, sequentially from an object side to an image side along an optical axis, a first lens having negative refractive power and a concave image-side surface; a stop; a second lens having positive refractive power and a convex image-side surface; a third lens having refractive power and a concave image-side surface; a fourth lens having positive refractive power and a convex image-side surface; and a fifth lens having negative refractive power, a convex object-side surface and a concave image-side surface. A maximum field-of-view FOV of the camera lens group satisfies: FOV>114°. A maximum distortion of the camera lens group is within 8%.

Camera lens group including five lenses of −+−+− or −+++− refractive powers

The present application relates to a height-adjustable table including a table plate. a table leg is fixedly connected to a side surface of the table plate, two brackets are arranged oppositely on the side surface of the table plate, and a retaining plate is fixedly connected to opposite inner sides of the two brackets, respectively. A control box is provided, a retaining clip is fixedly connected to the control box, and the retaining clip is detachably connected to the retaining plate.

Growing community of inventors

Zhejiang, China

Long Li