47results about How to "Guaranteed to slip" patented technology

The invention relates to a pushing-aside preventing shielding door. The pushing-aside preventing shielding door comprises a door body, the door body comprises a fixed plate and a sliding plate, the fixed plate is fixedly arranged on a platform, the sliding plate is inserted into the fixed plate and slides on the fixed plate, a driving piece is arranged between the fixed plate and the sliding plate, and the driving piece drives the sliding plate to slide on the fixed plate; a pushing-aside preventing device is arranged between the fixed plate and the sliding plate and comprises a pushing piece,a rotating piece and an abutting piece, the pushing piece is installed on the side, facing a rail, of the fixed plate and slides towards the side, away from the rail, of the fixed plate, the rotatingpiece is rotationally arranged in the fixed plate, and the abutting piece is installed on the rotating piece; and the abutting piece abuts against the end, inserted into the fixed plate, of the sliding plate. The pushing-aside preventing shielding door has the effect that the probability that the shielding door is pushed open can be reduced.

The invention discloses a transplanting device for vegetable planting. The device comprises a box body, wherein a first motor is fixedly connected to one side of the inner wall of the box body throughthe top of a motor fixing plate, an output shaft end of the first motor is connected with a first belt pulley through a belt, one side of a rotating device is connected with a first driving wheel, the first driving wheel is in drive connection with a second delivery wheel through a delivery belt, press plates are glidingly connected to the inner wall of the box body through sliding plates, straight toothed plates are fixedly connected to two ends of the press plates, a pendulous device is meshed and connected with one side of each straight toothed plate, a press barrel is fixedly connected tothe bottom of the press plates, a conical barrel is rotationally connected to the bottom of an outer wall of the press barrel, a fixing plate is fixedly connected between two opposite sides of the inner walls of the box body, and the bottom of the fixing plate is fixedly connected with a leakage barrel. The invention relates to the technical field of agricultural machinery. By means of the transplanting device for vegetable planting, the problems of time consumption and labor consumption of conventional manual transplantation are solved, seedling pots are protected from damage, seedlings areeasy to erect in the transplanting process, and the quality of the transplanted seedlings is improved.

The invention discloses a construction method and device for installing connecting beams on a frame-type steel structure. The construction method includes the key steps of utilizing trolleys (5) on track beams (4) to drag the connecting beams (1), and utilizing masts (3) to lift the connecting beams (1). The construction device comprises the connecting beams (1) between two H-shaped steel girders (2) of the frame-type steel structure, the two track beams (4) parallel with the H-shaped steel girders (2) are laid on the connecting beams (1) through fasteners, the pair of trolleys (5) used for bearing the connecting beams (1) is arranged on the two track beams (4), and upper wing plates of the two H-shaped steel girders (2) are detachably connected with a pair of the posts (3) used for lifting the connecting beams (1). According to the construction method and device, the connecting beams (1) in the middle portion can be installed conveniently on the premise that no large-scale tower crane is used.

This application relates to an OVD deposition device with a high deposition pass rate, including: a deposition box, a support structure, a chuck rod fixing structure, a blowtorch, and an exhaust system; wherein, the support structure is arranged on one side of the deposition inner cavity, including a fixing seat , a sliding ring, a fixing tube, and a pressing piece are used to fix one end of the prefabricated rod loose body or mandrel. The chuck rod at the other end is connected with the driving device and can be driven by the driving device to rotate. The OVD deposition device of the present application prevents the preform loose body or mandrel from sliding in the sliding bearing support structure or slipping out of the bearing support structure, thereby ensuring that the entire preform soot body or mandrel does not move back and forth or slip out of the fixture , which improves the deposition qualification rate of the preformed loose body or mandrel.

The invention provides an easy-to-use livestock defecation device, which comprises a defecation tank, a scraper and a scraper. The inner wall of the defecation tank is slidably provided with a scraper, and the front and back sides of the scraper are bonded with scrapers. The defecation tank includes a support Rod, positioning block, groove and inclined plate, the left side of the defecation tank is welded with a support rod, the top of the support rod is welded with a ring, and the surface of the defecation tank is welded with two positioning blocks. The scraper in the present invention can move in the defecation tank, push the feces in the defecation tank out of the defecation tank, thereby collecting the feces, and does not require workers to clean the dormitories of livestock frequently, saving the workload of workers, and the front and back of the scraper The nozzle can be used together, not only can clean the defecation tank, wash down the stubborn feces in the defecation tank, but also push the scraper to slide back and forth in the defecation tank, so that the scraper can push the feces in the defecation tank to the front and rear ends of the defecation tank , so that the feces are discharged from the defecation tank, and no workers are required to remove the feces.

The invention provides a large-caliber sampling device and system for columnar sediments in a lake. The sampling device comprises a sampling tube, wherein a sampling head is connected with the upper end of the sampling tube and comprises an upper cover and an extension rod; the upper cover is detachably connected with the upper end of the sampling tube, and is provided with at least one water outlet; the extension rod is longitudinally arranged at the middle part of the upper cover, and is provided with a weight balancer; a guide hole provided with a downward opening is formed in the middle part of the sampling head; a first piston is arranged inside the sampling tube; a through hole is formed in the middle part of the first piston, and a valve is arranged at the upper part of the first piston; a guide rod is arranged at the upper part of the valve; the guide rod can stretch into the guide hole and can freely move up and down. The system comprises a sampling platform, a jacking device for sediments, a sampler and a sample separating frame. The sampling device provided by the invention can conveniently discharge water inside the sampling tube, and seal the first piston when the sampling tube is lifted upward to prevent sediments inside the sampling tube from slipping off, so that the sampling tube can be conveniently machined into a large-caliber sampling tube.