33results about How to "Realize automatic extension" patented technology

The invention discloses an LED display module and an LED display device with an interface protection structure. The LED display module includes an LED display screen, a protective outer frame is fixedly connected to the right side of the LED display screen, and the right side of the protective outer frame There is a docking groove on the side, and a data line docking mechanism is connected to the inside of the docking groove, and a sealing mechanism for sealing the docking groove is provided at the opening of the docking groove; It avoids the problem that the data interface is exposed and easily damaged by external problems and cannot work normally. By setting the rotating vertical plate, rotating horizontal plate, and waterproof plate, it avoids the problem of rainwater seeping into contact due to bad weather and causing unstable data transmission. By setting the ratchet , limit block, and pressing plate, avoiding the problem of loosening between the data interface and the docking terminal due to bad weather and affecting the normal operation of the LED screen.

The invention provides a mobile phone bracket assembly based on an automobile mobile phone bracket. The mobile phone bracket assembly comprises a bracket assembly shell, a mobile phone tray assembly, a rotating mechanism and a pushing mechanism. A mobile phone can be fixed through the mobile phone tray assembly. The rotating mechanism is connected with the mobile phone tray assembly and the pushing mechanism and can be pushed by the thrust provided by the pushing mechanism to push a tray shell to slide in the length direction of the bracket assembly shell to the front end of the bracket assembly shell and then rotate to be in a vertical state, so that the mobile phone installed on the tray shell is in a vertical state. The pushing mechanism is used for providing the horizontal forward thrust for the tray shell so that the tray shell can be promoted to move forwards, and the automatic telescopic effect on the tray shell is achieved. The tray shell can be in a horizontal state when stored in the automobile mobile phone bracket, so that the requirement for the height of the mobile phone bracket is lowered, the occupied space is small, the mobile phone can be fixed, and meanwhile a telescopic function can be achieved.

The invention belongs to the technical field of natural gas pipeline equipment, and in particular relates to a natural gas pipeline leakage detecting device. The natural gas pipeline leakage detectingdevice comprises a frame body and a controller. A first slide plate and a second slide plate are both circularly designed and slidably connected to the inner wall of the frame body, and the first slide plate is located below the second slide plate. A spring is fixed between the lower surface of the first sliding plate and a rotating shaft of a motor. A moving plate is U-shaped, and the moving plate is connected to the fixing ring through a bearing. A sliding slot is formed in a lower surface of the second sliding plate; and two sliding blocks are slid in the sliding slot. The sliding blocks are initially located at two ends of the sliding slot, and a first swinging lever is connected between a left sliding block and a right side gear, and a second swinging rod is connected between the right side sliding block and a left side gear. A guide hole is defined in each guide block, and spring wires of springs are designed to pass through the guide holes. Bellows is fixedly connected betweenan alarm and the inner wall of a fixed barrel, and the bellows is in communication with a cylinder. The natural gas pipeline leakage detecting device has the advantages of simple and convenient operation and long detection distance.

The invention discloses an ecological restoration device suitable for the riparian zone of a sand excavation channel in the north, comprising a restoration net covering the upper river bank slope and a covering mechanism for pressing the restoration net, wherein the restoration net comprises a bendable and coiled The vertical pipe and the horizontal pipe are provided with a plurality of connecting pipes between the adjacent horizontal pipes, a plurality of fixedly connected positioning blocks are arranged at the bottom of the horizontal pipes, and positioning grooves are arranged in the positioning blocks. The positioning groove is provided with a plunger rod that can move up and down, the end of the plunger rod is sharp, the plunger rod is provided with a storage tank, the storage tank stores the seeds of plants, and the pressing mechanism includes a walking base , support frame and cladding roller, the design of the repair net can effectively prevent the water and soil loss of the river bank slope by using the repair net. On the surface, the fit is tighter, which further prevents the overall soil erosion.

The invention provides a conveniently controlled sand scraping instrument with an automatically extended scraper. The conveniently controlled sand scraping instrument mainly consists of a housing, a main piston, a main piston variable-cross section cylinder, a support cylinder and a scraper. The conveniently controlled sand scraping instrument is characterized in that the main piston is connectedwith the upper end of the main piston variable-cross section cylinder through threads; the main piston variable-cross section cylinder is positioned inside the housing; a variable-cross section of themain piston variable-cross section cylinder is supported by a fixed baffle ring; the fixed baffle ring is fixed on the housing through a fixing pin; an outer through hole is formed in the housing inthe upper part of the fixed baffle ring; a support cylinder is in threaded connection with the housing; an upper support base is axially positioned through a shaft shoulder on the support cylinder; anupper connecting cap a of the upper support base is in threaded fixation on the support cylinder; a scraper is supported by a spring; a scraper support sleeve is in threaded connection with the support cylinder; a lower support base is positioned through a shaft shoulder; a connecting cap b at the lower end of the lower support base is in threaded fixation with the support cylinder. The instrument is applicable to oil field pipeline well wall sand cleaning operation, and the scraper can be conveniently fed into a bent well section downwards, can automatically extend after being fed, and in addition is convenient and rapid to control.

The invention discloses a gear switching system of fitness equipment, which belongs to the technical field of fitness equipment and comprises a pulling device, a lifting device, a first counterweight assembly, a second counterweight assembly, a pulling device, a lifting device, and a first counterweight The parts and the second counterweight assembly are all located inside the casing of a gear switching system of fitness equipment, wherein the pulling device includes a pull ring, which is arranged outside the casing, and the pull ring is installed on the tape through the pull rope. The belt winds around the rotating shaft, the winding direction of the winding belt is opposite to that of the rope, the rope is wound on a plurality of fixed wheels, and the fixed wheels are rotatably mounted on the casing, and the first counterweight assembly and the second counterweight assembly are respectively arranged on the rope through the fixed wheels For the part between the two fixed wheels, the lifting device is installed on the shell to realize the lifting control of the first counterweight assembly. The present invention realizes the control and adjustment of the pulling force through the pulley mechanism, with ingenious structure and high degree of automation.

The invention provides an electric password drawer. The electric password drawer comprises an outer case with one opening in one end, a drawing case arranged in the outer case, a driving device for driving the drawing case to protrude / retract, and a control case controlling the driving state of the driving device and the protruding extent of the drawing case. The control case comprises an information input device and a position limiting device, wherein the information input device used for inputting authorization information is arranged in the drawing case and near the protruding end of the drawing case, and the position limiting device is used for limiting the drawing case to protrude only in the semi-open state that the part in which the information input device is arranged is exposed and relieving limitation after receiving the authorization information. According to the scheme, through a hidden setting of the information input, security is greatly reinforced, and the whole beauty is improved.