48 results about "Protruding tooth" patented technology

The utility model discloses a multifunctional hair iron which comprises two clamping arms, the two clamping arms are hinged and can be clamped with each other, and the ends, clamped with each other, of the two clamping arms are defined as working ends; the shaping plates correspond to the clamping arms one to one and are arranged at the working ends of the clamping arms, and convex teeth are arranged on the surfaces of the shaping plates; the working ends of the clamping arms are connected with floating plates corresponding to the shaping plates in a floating mode, and through holes corresponding to the protruding teeth are formed in the working faces of the floating plates. When the two clamping arms are opened, the floating plate moves to a first working position under the action of the elastic piece, namely, the convex teeth retract into the through holes, and at the moment, no convex teeth block hair bundles from entering the perm, so that hair is evenly laid on the upper floating plate or the lower floating plate; afterwards, the two clamping arms are clamped, the floating plate overcomes the elastic acting force of the elastic piece under the action of the convex teeth to move to the second working position, the convex teeth on the two shaping plates penetrate through the through holes and are meshed with each other, the hair is evenly heated, and the perm effect is improved.

The cloth roll storage rack comprises a storage rack body, the storage rack body comprises a support body and a cross beam, a positioning groove is formed in the end face of the support body in the longitudinal direction, a plurality of limiting tooth blocks are arranged on the inner wall of one end of the positioning groove in the longitudinal direction, and a sliding groove is formed in the side edge of the support body. A plurality of sliding supports are arranged on the support body in a sliding mode through sliding grooves, each sliding support comprises a sliding block, a supporting plate, a guide rod, a spring and a positioning ring, the guide rods are arranged on the sliding blocks in a penetrating mode, one ends of the guide rods are connected with the supporting plates, the other ends of the guide rods are sleeved with the springs, and the springs abut against the sliding blocks and support the guide rods towards one ends. The surface of one end of the supporting plate is provided with a positioning ring used for being connected with the end of a cloth roll in a sleeved mode, the surface of the other end of the supporting plate is provided with a protruding block embedded into the positioning groove, one end of the protruding block is provided with protruding teeth embedded into the limiting tooth block, and the protruding teeth are separated from the limiting tooth block by stretching the cloth roll outwards during adjustment, so that the height position of the cloth roll is adjusted. And the distance between the cloth rolls can be adjusted.

The invention provides a mechanical arm. The mechanical arm comprises a first joint, a second joint and a connecting joint. The first joint comprises a first spherical concave tooth end, the first spherical concave tooth end is provided with a plurality of grooves arranged in an array mode in the first direction and the second direction, and the first direction intersects with the second direction. The second joint comprises opposite first spherical convex tooth ends, the first spherical convex tooth ends are provided with a plurality of convex teeth arranged in an array mode in the first direction and the second direction, and the first spherical concave tooth ends are meshed with the first spherical convex tooth ends so that the convex teeth can be matched with the grooves; the connecting joint comprises a first connecting end and a second connecting end which are opposite to each other, the first connecting end is rotatably connected to the first spherical concave tooth end, and the second connecting end is rotatably connected to the first spherical convex tooth end, so that the first joint and the second joint are in limited connection. According to the mechanical arm provided by the invention, the manufacturing cost and the control difficulty of the mechanical arm are greatly reduced. The invention further provides additive and subtractive composite 3D printing equipment.

This utility model discloses a hollow flexible tube with protruding teeth on the inner wall, including a tube body with a plurality of teeth inside the tube body, the plurality of teeth including at least two height specifications of teeth, relating to the field of tube technology. On the basis of short teeth on the inner wall of the tube body, some high teeth are added. When wires of different diameters are inserted into the tube body, they can all be limited by the combination of high teeth and short teeth, thereby realizing the limitation of wires of different diameters, improving the applicability of the flexible tube and making it more practical.