35results about How to "Automatic retraction" patented technology

The present invention discloses an automobile sun screen. It includes the following several portions: central shaft, rolling screen spring, rolling tube, rolling screen and external protective tube in which two ends of said external protective tube are equipped with upper and lower end covers, and on the central shaft upper and lower shaft sleeves are set. Besides, said invention also provides the connection mode of all the above-mentioned portions, and its working principle and operation method.

The invention provides an umbrella rolled for storage. The umbrella comprises an umbrella surface, ribs, a middle rod and a rolling body assembly, wherein each rib comprises an upper nest, a lower nest and a rib support group, the top end of the rib support group is arranged at the top end of the middle rod through the upper nest, the bottom end of the rib support group is arranged on the middle rod through the lower nest in a sleeving mode, the umbrella surface is arranged on the ribs, folding marks are arranged on the umbrella surface, and the rolling body assembly is arranged on one side of the folding marks. The umbrella rolled for storage is provided with the rolling body assembly on the umbrella surface, the rolling body assembly is arranged on the inner side face of the umbrella surface, and the hardness of the part provided with rolling body assembly of the umbrella surface is increased through the rolling body assembly, so that the umbrella surface at the position is order, then the umbrella surface is easier to organize and roll, and the purposes of automatically rolling the umbrella surface and rapidly organizing the umbrella surface are achieved.

The present invention discloses an automobile sun screen. It includes the following several portions: central shaft, rolling screen spring, rolling tube, rolling screen and external protective tube in which two ends of said external protective tube are equipped with upper and lower end covers, and on the central shaft upper and lower shaft sleeves are set. Besides, said invention also provides the connection mode of all the above-mentioned portions, and its working principle and operation method.

The invention relates to a hydraulic valve for an agricultural machine. The hydraulic valve for the agricultural machine is characterized by comprising a valve block, a reversing valve core, a left end cover, a right end cover, a large plunger piston, a small plunger piston, a first spring and an overflow valve; an oil inlet, an oil returning port, a first working oil port and a second working oilport are formed in the valve block; a first channel and a second channel are formed in the valve block; the reversing valve core is arranged in the first channel in a sliding manner; the left end cover and the right end cover are respectively fixed to the left end and the right end of the valve block and are used for plugging the first channel; the large plunger piston is arranged in the left endcover in the sliding manner and forms a main control cavity with the left end cover; the small plunger piston is arranged in the right end cover in the sliding manner and forms a left control cavitywith the right end cover; the first spring is arranged in a right oil returning cavity; the overflow valve is arranged on the second channel for normally disconnecting the second channel; and the reversing valve core can be switched between a left end position and a right end position. The hydraulic valve for the agricultural machine is simple in structure and low in manufacturing cost, and can realize automatic control.

The invention relates to an oil channel switchover valve. The oil channel switchover valve is characterized by comprising a valve block, a reversing valve element, a first screw plug, a second screw plug, a first spring, a second spring and an overflow valve, wherein an oil inlet port, an oil return port, a first working oil port and a second working oil port are formed in the valve block; a firstchannel is formed in the valve block; the reversing valve element is slidably arranged in the first channel; the first screw plug and the second screw plug are fixed to the left end and the right endof the valve block separately and used for plugging the first channel; the first spring is arranged in a primary control cavity; the second spring is arranged in a secondary control cavity; the overflow valve is arranged on a first flow channel and used for normally cutting off the first flow channel; and the reversing valve element can be switched over among a first position, a second position and a third position. The oil channel switchover valve is simple in structure, low in manufacturing cost, and capable of realizing automatic control.

The invention provides an intelligent multifunctional beautifying and weight reducing apparatus which comprises a direct-current speed reduction motor, a rotational speed sensor, a motor installationshell, a weight reducing vibration shell, a rotating shaft, a coupler, a conventional bearing, a supporting seat, a vibration rotating block, a rotating wheel, a vibration wheel structure, a primary drawing belt, a male button, a secondary drawing belt, a female button, a face vibration sleeve structure, a detachable installation plate structure, an opening clamping ring, a connecting rod, a massage hammer structure, a back massage roller structure, a hand gripping power weight reducing device, a waist measuring tape structure and an intelligent cabinet. The instrument is provided with an eccentric block, a vibration motor, a facial inward recessed rubber sleeve, a rubber outer pad, a plastic shell and massaging balls, vibratory massage of the face is facilitated through the eccentric block and the vibration motor, the face is massaged through the massaging balls, practical functions of the apparatus are increased, use of different users is facilitated, and the face can be beautified.

The invention discloses a foot controlled dining assistor for the disabled. The problem that people without the arms or with arm disability cannot dine conveniently is mainly solved. The foot controlled dining assistor is mainly composed of a clamping device, a telescopic arm, a shoulder clamping device and a foot controller. The foot controller drives the telescopic arm to stretch out and draw back and drives the clamping device to do swing and clamping motion by driving a brake cable. The other motions, such as lifting and pitching of the clamping device, are completed by the upper limbs of people. The height and angle of the telescopic arm and the angle of the clamping device are adjusted by family members to the optimal position before the assistor is used, and only need to be adjusted once so that the assistor can be suitable for being used by people with different ages and figures. The foot controlled dining assistor has the advantages of being free of a power source, few in freedom degree, easy to operate and master and the like.

The invention discloses a silkworm frame shelf and a forming method thereof. The silkworm frame shelf is formed through the steps of design of a partition plate, manufacturing of a mold, preparation of a partition plate material, forming of the partition plate, forming of a fence, mounting of a pushing and sweeping system and assembling of the fence and the shelf. A grasping hole and the pushing and sweeping system are additionally arranged in the shelf, the grasping hole is provided with a grasping arm matched with the grasping hole, the grasping arm can be inserted into the grasping hole, aclamping plate can be popped out from the lower part of the grasping arm, the clamping plate is clamped into an expanding port to achieve fixation of the grasping arm, the shelf can be easily graspedby means of the grasping arm, thus substances like newly-hatched silkworm and fodder can be conveniently transferred, and both time and labor are saved. A sweeping and scraping system can scrape and sweep the residual impurities into a waste tank to be stacked temporarily, accordingly the next batch of fodder can be conveniently thrown in, sufficient fodder supply is maintained, and the impurity cleaning difficulty is reduced.