469results about How to "Unique structural design" patented technology

The invention discloses a door opener. The door opener comprises a shell consisting of an upper cover plate and a lower cover plate. The key is as follows: a pushing device for pushing a door to rotate is arranged in the shell; one end of a driving device with a spring drives the pushing device by a rotating and swinging piece to rotate; and a locking and releasing device matched with the drivingdevice is arranged at the other end of the driving device. According to the technical scheme of the invention, the door opener is unique in structural design, facilitates door opening and avoids any possible damage to users.

The invention is concerned with the cutting for lamp housing sari, knife sari, gridding sari, transparence film, and transparence film rolling, it is: the initiative roller and the driven roller locates in the axle base of both ends of the stander, the motor drives initiative roller by transmission, the cutting knife assembly locates on the roller surface forming by the initiative roller and the driven roller, and traverses along the beam of the stander, fluctuates along the axle. The advantages are: two knives assume spacing arrangement, solves the problem that friction heat when cut the soft rolling material leads to the plastic softening and adhesion; it is easy and quick to cut the softness material; the structure is new, special and simple.

A bidirectional double-rigidity elastic support for garden trees is characterized by comprising a supporting head (1), a supporting bar and a base (4), wherein the supporting bar comprises a hollow supporting bar (21), a first hollow loop bar (22), a second hollow loop bar (23) and a draw bar (24); the top of the hollow supporting bar (21) is connected with the supporting head (1); the bottom of the hollow supporting bar (21) is connected to the top of the first hollow loop bar (22); the first hollow loop bar (1) sleeves the second hollow loop bar (22); the draw bar sequentially penetrates in a center through hole in the top of the first hollow loop bar and a center through hole in the top of the second hollow loop bar, and coaxially penetrates in the hollow supporting bar, the first hollow loop bar and the second hollow supporting bar; and limiting stopping portions (25) are respectively arranged on the top and the bottom of the draw bar (24); a first flexible spring is clamped on the draw bar and between the two through holes; and a second flexible spring is clamped between the center through hole of the second hollow loop bar and the stopping portion on the bottom of the draw bar. By the bidirectional double-rigidity elastic support for garden trees, the trees can freely swing in the up-down direction, the left-right direction and the front-back direction, and can be protected by limiting amplitude or displacement.

The invention discloses a rounded zipper tooth. The rounded zipper tooth comprises a zipper tooth body. The zipper tooth body is a semicircular columnar body. One end of one engaging surface of the zipper tooth body and one end of the other engaging surface of the zipper tooth body are recessed into the zipper tooth body to form an engaging portion and engaging concave portions, positioning portions are arranged on the engaging concave portions, and positioning grooves are formed in the engaging portion. The rounded zipper tooth is special in structural design, and when zipper teeth are engaged, the engaged zipper teeth are round. Compared with the prior art, the rounded zipper teeth are in dual engaging and locking during mutual engaging, the engaging portion of one zipper tooth is engaged with the engaging concave portions of the other zipper tooth, the positioning portions of one zipper tooth are clamped and locked with the positioning grooves of the other zipper tooth, the zipper teeth are engaged and locked in two dimensional directions, and engaging of the interacting zipper teeth is firmer; even when the zipper teeth are torn by large external force from the left-and-right direction, the engaged zipper teeth are not prone to disengage.