1123results about How to "Achieve folding" patented technology

The invention relates to a hidden turnover ladder. The hidden turnover ladder is characterized by comprising an upper ladder assembly and a lower ladder assembly, wherein the upper ladder assembly comprises a baseplate, and a pair of mounting vertical plates symmetrically arranged on the baseplate; multiple stages of upper antiskid pedals are arranged between the mounting vertical plate; first pin shaft holes are formed in the lower front parts of the mounting vertical plates; the lower ladder assembly comprises a pair of step type mounting side plates; connecting lug plates are arranged at the upper ends of the mounting side plates, and are rotationally connected with the first pin shaft holes through first pin shafts; and multiple stages of lower antiskid pedals are arranged between the mounting side plates. The hidden turnover ladder has the beneficial effects of less occupied space, convenience for use and folding capacity in no use. The invention further discloses oil field operation equipment adopting the turnover ladder; and the oil field operation equipment has the following beneficial effects: second pin shafts are arranged for connecting a car body with the hidden turnover ladder, so that the turnover ladder can be accommodated in a turnover ladder accommodating cavity after two times of overturning, and the effect of convenience for use and transportation is achieved.

The invention relates to a wing folding mechanism for an unmanned plane. The wing folding mechanism comprises a first sleeve, a second sleeve, a support shaft, a locking part, a tractive part and a connecting rod, wherein the first sleeve is provided with a first cavity; the second sleeve is provided with a second cavity; the support shaft is arranged in the first cavity in a slidable manner; the locking part is mounted on the side face of the first sleeve and has a locking state and an unlocking state; the tractive part is fixed in the second cavity and can move back and forth in the shaft axis direction of the first sleeve; the connecting rod is used for connecting the support shaft and the tractive part; the wing folding mechanism has an unfolding state and a folding state. On one aspect, part of the folding mechanism enters the support shaft of the second cavity, so that the folding mechanism is in the unfolding state; on the other aspect, under the action of the tractive part, the connecting rod enables the first sleeve to rotate relative to the end face of the second sleeve, so that the folding mechanism is in the folding state, as a result, both the unfolding and folding states are realized without a wheel gear serving as a transmission part; in addition, the wing folding mechanism is compact in structure and stable in motion, and few requirements are required for the torque of a motor.

The invention provides a packaging layer comprising a first inorganic functional layer and an organic buffer layer covering the first inorganic functional layer. A plurality of grooves are formed in the surface, in contact with the organic buffer layer, of the first inorganic functional layer and a plurality of protrusions corresponding to and matching the multiple grooves are arranged on the surface, in contact with the first inorganic functional layer, of the organic buffer layer, so that the multiple protrusions can be embedded into the corresponding multiple grooves respectively. In addition, the invention also provides a packaging device. According to the packaging layer, the optical coupling output of the packaging device can be improved effectively. Moreover, bending, folding, and even rolling of the packaging device can be realized, so that stability of the packaging device is improved and thus the service life of the packaging device is prolonged.

The invention relates to a flow diagram generating method and device. The method comprises establishing nodes according to the types of required nodes; selecting father nodes and child nodes from the nodes and placing the child nodes inside the father nodes to establish the father-child relationship among the nodes; according to the sequential relationship between the father nodes and the child nodes and other nodes, establishing the connection relationship between the father nodes and the child nodes and other nodes to generate a flow diagram. The embodiment of the flow diagram generating method and device achieves the automatic establishment of the father-child relationship and the connection relationship between the father process and the child processes of the flow diagram and further achieve folding and unfolding of the child processes, thereby reducing the difficulty of diagram drawing and maintaining.

The invention discloses a novel adjustable accordion conveyer and relates to the technical field of conveyers. The novel adjustable accordion conveyer comprises a bottom plate. The two sides of the top of the bottom plate are fixedly connected with first connecting plates. A lead screw is fixedly connected to the centers of the first connecting plates. A limiting block is fixedly connected to thecenter of the lead screw. A first sliding block and a second sliding block are fixedly connected to the positions, located on the two sides of a limiting frame, of the surface of the lead screw correspondingly. The top of the first sliding block and the top of the second sliding block are rotatably connected with a first connecting rod and a second connecting rod correspondingly. Through the noveladjustable accordion conveyer, the problems that the height of conveys adopted in a factory at prevent is fixed generally, equipment with the different heights needs to be equipped with different conveyers, the occupied space is large, the economy is consumed, the sizes of the conveyers are large and do not facilitate transportation and storage of the conveyers and the cargo flow is blocked due to splicing of two small conveyers are solved.

The invention relates to a folding self-locking device for a seat back, which comprises a seat connecting board (21) pivoted with a transition board (22). The transition board (22) is pivoted with a chair back connecting board (24) and is fixedly connected with a locking block of a locking groove (223), the chair back connecting board (24) is pivoted with a locking buckle (26) through a locking shaft (241), and a restoring component is arranged between the chair back connecting board and the locking buckle (26), a locking part (261) of the locking buckle (16) is positioned in the locking groove (223) under the action of the restoring component to form self-locking, the locking buckle (26) is connected with an unlocking structure which drives the locking buckle (26) to rotate around the locking shaft (241) under the action of an external force, so as to achieve the unlocking of the locking part (261) and the locking groove (223). No matter which angle the seat back is positioned, the unlocking structure can be operated to fold the seat back, so the folding self-locking device is convenient to use the seat back remarkably.

The invention discloses a folding crane which comprises a master bracket, a hanging rack, a lifting device, at least one pair of support legs, and folding support mechanisms, wherein the master bracket is in a telescopic structure; the upper end of the master bracket is pivoted with and supports one end of the hanging rack; the lifting device is mounted at the other end of the hanging rack; the lower end of the master bracket is pivoted with one end of each support leg; one end of each support mechanism is pivoted with the master bracket; and the other end of each support mechanism is pivoted with each support leg. The folding crane can save a storage space greatly, and is convenient to carry, and the use flexibility and convenience are improved greatly.