49results about How to "Increase or decrease in length" patented technology

The invention discloses a frequency-adjustable stretchable liquid metal antenna which comprises a stretchable base plate, wherein a curve-shaped liquid metal micro-flow way is machined on the stretchable base plate, and the liquid metal micro-flow way is internally filled with liquid metal or liquid metal alloy; when the stretchable base plate is transversely stretched, the liquid metal or the liquid metal alloy in the curve-shaped micro-flow way is lengthways and transversely deformed, and the length change of the stretched liquid metal antenna is controlled by presetting the proportional relation between the lengthways deformation and the transverse deformation, so that the work efficiency of the transversely-stretched liquid metal antenna can be adjusted. The invention further provides a manufacture method of the frequency-adjustable stretchable liquid metal antenna. According to the frequency-adjustable stretchable liquid metal antenna and the manufacture method of the liquid metal antenna, the length change of the stretched liquid metal antenna is controlled by presetting the proportional relation between the lengthways deformation and the transverse deformation, so that the work efficiency of the transversely-stretched liquid metal antenna can be adjusted.

The invention discloses an intelligent microneedle puncture instrument, a network system and a control method. The intelligent microneedle puncture instrument comprises a hollow cylindrical shell, a control mechanism, a driving mechanism, a flexible needle outlet adjusting mechanism and a microneedle suite, wherein the control mechanism, the driving mechanism and the flexible needle outlet adjusting mechanism are sequentially arranged in a hollow cavity of the shell from top to bottom, and the microneedle suite is detachably connected with the flexible needle outlet adjusting mechanism; and the microneedle array obtains needle withdrawing and puncturing depth ranges of 0-(H1 + H2) in the axial direction, makes contact with the skin of each area and punctures the skin, and transdermal drug delivery or physical therapy is carried out. The network system comprises an intelligent microneedle puncture instrument and an intelligent terminal, and the intelligent terminal is provided with a beauty/physiotherapy control applet or APP. The control method comprises the steps that the intelligent microneedle puncture instrument, an intelligent mobile phone and a remote server are connected, the APP calls the intelligent terminal, data of a user is obtained, the intelligent puncture instrument is controlled to work, and transdermal drug delivery or physiotherapy of the skin is carried out. The intelligent microneedle puncture instrument is easy to use, large in puncture depth adjusting range, good in effect and high in safety.

The invention provides a superlift device for a telescopic jib. The superlift device for the telescopic jib comprises at least one rotating support, a first tightening member, a second tightening member and a third tightening member, wherein the fixed end of the rotating support is pivoted with a basic boom of the telescopic jib, and the first tightening member is arranged between the movable end of the rotating support and the outer end part of the tail boom section of the telescopic jib; the second tightening member is arranged between the movable end of the rotating support and the root of the basic boom, and one end of the third tightening member is connected with any one section closing to the tail boom section; and the other end of the third tightening member is connected onto the first tightening member. The first tightening member and the second tightening member respectively supply a first pull force and a second pull force to the tail boom section and the basic boom, and the third tightening member supplies a third pull force to an intermediate boom section, so that the magnitude of the first pull force is reduced, and the pressure generated by the first pull force and the second pull force on the telescopic jib is also reduced, and thus the deformation of the intermediate boom section of the telescopic jib is effectively inhibited.

The invention belongs to the technical field of semiconductor devices, and particularly relates to a sliding mechanism and a flexible display module. The sliding mechanism comprises a sliding assembly and a plurality of supporting parts, the sliding assembly comprises a first plate body and a second plate body which are slidably connected, the first plate body is used for being connected with the starting end of a flexible screen body, and the first plate body and the second plate body can be relatively far away from or close to each other so that the length of the sliding assembly can be increased or decreased. The supporting parts are at least located on part of the second plate body and used for getting close to and supporting the flexible screen body after the first plate body gets away from the second plate body and getting away from the flexible screen body after the first plate body gets close to the second plate body. The stress generated when the flexible screen body is bent or wound is reduced, so that the occurrence of spallation of the flexible screen body is reduced, the influence on display of the flexible screen body is reduced, and the effect of prolonging the service life of the flexible screen body is achieved.

The invention discloses a self-locking bracket, an orthodontic system, and an orthodontic method thereof. The self-locking bracket comprises a main body part, a cover body part and a connection part. The main body part is provided with a surface and a bottom surface, wherein a main groove is formed in the surface of the main body part and divides the surface of the main body part into a first end and second end. The first end is relatively protruded from the second end. The surface of the first end of the main body part is a smooth curve surface. The cover body part is provided with a bottom surface and a surface, wherein the bottom surface is matched with the surface of the second end of the main body part. The surface of the cover body part is a smooth curve surface and is matched with the surface of the first end of the main body part to form an ellipsoid-like shape. The main body part is connected to the cover body part through the connection part. The self-locking bracket allows an arch wire to be conveniently installed and tightly fixed and has a good orthodontic effect.

The invention relates to the technical field of sorting system accessory devices, in particular to an automatic packaging box sorting device of a production line. The sorting device can adjust the position of a limiting structure according to the size of a packaging box to play a good neatening role, and can collect sundries. The sorting device comprises a workbench, four stand columns, a bottom plate, a fixing plate, an air cylinder, a containing plate, four first telescopic pipes and a supporting plate; four supporting legs are arranged at the bottom end of the bottom plate; a conveying mechanism is arranged in the right half area of the top end of the workbench; a square hole is formed in the left half area of the top end of the workbench; and a telescopic rod is arranged at the top output end of the air cylinder. The sorting device further comprises a clamping plate, a second telescopic pipe, a threaded pipe, a threaded rod and a rotating disc; a rotating hole is transversely formed in the upper half area of the left side wall of the supporting plate; and a ball bearing is arranged between the threaded pipe and the inner side wall of the rotating hole. The sorting device further comprises a collecting box, a left handle and a right handle, a working cavity is formed in the collecting box, and a box opening is formed in the top end of the collecting box.

The invention discloses a tool gauge for drawing a hyperbola, and relates to the technical field of tool gauges. The tool gauge for drawing the hyperbola comprises a sliding rod, a fixed-origin column and fixed-focus columns. A T-shaped slot is formed in one surface of the sliding rod and matched with the fixed-focus columns. A through hole is formed in one surface of the sliding rod and matched with the fixed-origin column. Two discs are fixed to one surface of each fixed-focus column and connected in series through a cylinder. A first blind hole is formed in one surface of each cylinder. The fixed-origin column comprises a bolt, a threaded blind hole bolt, a nut and a fixed-origin needle, wherein the bolt is matched with the threaded blind hole bolt, the nut is fixed to one end of the threaded blind hole bolt, and a second bind hole is formed in one surface of the threaded blind hole bolt; and a fixed-origin needle is fixed to one surface of the threaded blind hole bolt. A thin thread is tied on the fixed-origin column and connected with a pencil through the fixed-focus columns. According to the tool gauge for drawing the hyperbola, the lengths of the portions, between the pencil and the two fixed-focus columns, of the thin thread are set as PF1 and PF2, the fixed-origin column rotates, and thus the problem that the hyperbola is difficult to draw is solved.

The invention relates to the technical field of production of packaging boxes, in particular to a molding processing system for a circular sheet-iron packaging box. The molding processing system comprises a base, wherein a hollow cavity is formed in the upper surface of the base; a molding die for molding the circular sheet-iron packaging box is mounted in the hollow cavity; a square hole which is matched with a positioning sleeve is formed in one side of the interior of the hollow cavity; a rectangular block which is adhered to the inner wall of the square hole is mounted in the square hole; a pin hole is formed in one side of the rectangular block; a pin column is fixed into the pin hole; an annular groove which is concentric to the square hole is formed in one side, deviated from the positioning sleeve, of the square hole; and a rubber sleeve is pasted to the inner surface of the annular groove through glue. Compared with the prior art, the molding processing system disclosed by the invention has the following benefits that through a mutual cooperation way of the pin column and the positioning sleeve, fixing of the position of the molding die is realized; and compared with a bolt connection way, the situation of damage of screw holes is avoided, the situation of replacement of the whole base is avoided, and waste of resources is reduced.

The invention relates to a wire adjusting mechanism. The wire adjusting mechanism comprises a shell and at least one fixed part connected with the shell, wherein the fixed part is provided with a groove, a movable part connected with a suspension wire is movably arranged in the groove, the movable part is further connected with an adjusting device, and the adjusting device is used for enabling the movable part to move relative to the groove through the adjusting device. The wire adjusting mechanism is advantaged in that the movable part can move up and down relative to the groove in the fixed part, so the length of the suspension wire connected with the movable part is increased or decreased, the length of the suspension wire is adjusted, a horizontal state between the lamp body and the ground is guaranteed, time and labor are saved, and the adjusting process is convenient and rapid.