35results about How to "Act as a rigid support" patented technology

The invention discloses a process method for controlling welding deformation with high precision. The process method is embodied in effective control of form and location tolerance in a welding structure, and comprises a preparation stage, a positioning stage and a welding stage. In the preparation stage, a trunnion block combination and a fan-shaped block are machined and assembled respectively,and a weld groove is machined; in the positioning stage, a position of a trunnion is aligned, and then a marking device is arranged, so that the offset condition of the trunnion is conveniently detected in the welding stage; in the welding stage, welding is conducted in a symmetrical and synchronous mode, deformation conditions are monitored by means of marks and a dial indicator, and welding parameters are adjusted in real time. The process method changes the conventional process, finish machining of the two trunnion parts is firstly completed, then assembling and welding are conducted on thesame, the welding stress is made to be in a relatively low and symmetrical balance state by adopting a high-precision detection control method, a reasonable welding sequence and a flexible control means, and therefore the purposes of controlling connection deformation and guaranteeing the workpiece precision are achieved.

The invention relates to a support frame. The support frame includes a support base and a support member arranged on the support base. A walking wheel with a wheel frame is arranged on the support base. The support base is connected to the wheel frame through an elastic floating support. The base has a support position that touches the ground after floating downwards and a free position that breaks away from the ground after floating upwards. When the weight of the piece to be supported is heavy, the supporting base floats down and contacts the ground so that it can support the piece to be supported together with the walking wheels. The role of the road wheel is protected from being crushed. When the weight of the support is light or before the support frame is removed, the support base is in the free position and off the ground. At this time, only the road wheel is used for support.

An extensible solid surface antenna reflector made from shape memory materials relates to a extensible antenna reflector, which is to resolve the problem that the prior extensible antenna reflector used in aerospace can not simultaneously meet the requirements of large diameter and working at high frequency. The reflector body thereof (1) is in a shape of paraboloid provided with a round opening in the middle, a first shape memory material ring reinforcing component (2) is fixedly connected with the upper edge of the back surface of the reflector body (1), a second shape memory material ring reinforcing component (3) is fixedly connected with the lower edge of the back surface of the reflector body (1), and a radial reinforcing plates (4) arrayed in a parabolic direction are equipped on the back surface of the reflector body (1) between the first shape memory material ring reinforcing component (2) and the second shape memory material ring reinforcing component (3). The invention is provided with a solid surface, the diameter of the antenna is large, working frequency is high (higher than 40 GHz), surface density of the reflector is low, antenna gain is relatively high, and also structure is simple, system structures and control processes is less, and operation reliability of the system is high.

Some embodiments of the present application provide a fingerprint module and a mobile terminal. The fingerprint module includes a fingerprint recognition chip, a flexible circuit board and a pressure detection unit, wherein the pressure detection unit includes a hard substrate and a pressure detection circuit formed on the hard substrate; the fingerprint recognition chip and the pressure detection unit are respectively arranged on the flexible circuit board. The two opposite surfaces are respectively electrically connected to the flexible circuit board. In the embodiment of the present application, the pressure detection circuit is directly formed on the hard substrate, and the rigid substrate provided with the pressure detection circuit is used to replace the reinforcing steel sheet in the prior art and the flexible circuit board for making the pressure sensor. This design method can not only ensure the realization of the pressure detection function, but also help to reduce the overall thickness of the fingerprint module, and reduce the impact of the fingerprint module on the thickness of the whole machine.

The invention discloses a pipeline steel flexible anti-seismic support which comprises a main U-shaped support body, a supporting pillar, a pipeline sleeve and a steel wire rope. The middle of the bottom wall of the main U-shaped support body is fixedly connected with the supporting pillar. The pipeline sleeve comprises an upper pipe sleeve and a lower pipe sleeve which are arranged in an up-down aligning mode. The steel wire rope is symmetrically erected on the lower pipe sleeve and located at the two sides of connecting blocks. A hinged rod is arranged between a connecting rod and the upper pipe sleeve. One end of the hinged rod is fixedly connected with the connecting rod, and the end, far away from the connecting rod, of the hinged rod is connected with the upper pipe sleeve in a rotating mode. A mounting groove is formed in the lower pipe sleeve and corresponds to the supporting pillar. Radial springs are fixed between the supporting pillar and the side wall of the mounting groove in the radial direction of the pipeline sleeve. Axial springs are fixed between the supporting pillar and the side wall of the mounting groove in the axial direction of the pipeline sleeve. According to the pipeline steel flexible anti-seismic support, the pipeline sleeve can be supported through a rigid supporting piece and a flexible supporting piece at the same time, the supporting effect on the pipeline sleeve by the whole support is better, and the anti-seismic action is made better and more effective.

The invention discloses manufacturing methods of an inflatable deployable antenna reflecting surface based on shape memory polymer and a reflecting surface film and skin thereof, which relate to the manufacturing methods of an antenna reflecting surface, and a reflecting surface film and the skin thereof, and solve the problem that a traditional deployable solid surface antenna reflecting surfaceis inconvenient to fold. The antenna reflecting surface comprises a reflecting surface body, a first circular airbag, a second circular airbag, radial airbags and the skin, the upper end and the lower edge of a convex paraboloid of the reflecting surface body are respectively and fixedly connected with the first circular airbag and the second circular airbag, the convex paraboloid of the reflecting surface body is uniformly provided with N radial airbags which are lined in the circumferential direction, and the skin is covered on the convex paraboloid of the reflecting surface body; the reflecting surface film is coated on fiber reinforcing material through shape memory polymer material; and the skin coats the shape memory polymer material on flexible material. The antenna reflecting surface can be conveniently folded and unfolded, and is used for space communication.

The invention discloses a synchronous hoisting type duplex insulator string which is used for power transmission line construction. The synchronous hoisting type duplex insulator string comprises two parallel insulator string bodies with the lower ends connected together through a connecting yoke plate. Each insulator string body comprises a hoisting fitting string and an insulator set which are sequentially connected from top to bottom, and further comprises a hoisting device which is arranged between two traction plates in the hoisting fitting string, wherein the hoisting device comprises a traction groove with the U-shaped section and a cylindrical hoisting rod arranged in the traction groove to be matched with the traction groove, traction holes are correspondingly formed in the middles of a front groove plate and a rear groove plate of the traction groove, the hoisting rod penetrates through the traction plates, and the ends, located outside the traction plates, of the hoisting rod are provided with threads and fixing nuts matched with the threads. The synchronous hoisting type duplex insulator string has the advantages of being novel in design and simple in structure; the two insulator string bodies and the hoisting fitting string of the duplex insulator string can be simultaneously hoisted to preset installation positions, and the two insulator string bodies can be prevented from colliding with each other or being twisted together in the hoisting process.

The invention discloses an auxiliary pressure-dividing cable trench, which includes a trench body, a cover plate and two side plates, a limit cylinder is fixedly arranged in the trench body, a sliding plate is sealed and slid inside the limit cylinder, and the A T-shaped plate is fixedly connected to the sliding plate, and two L-shaped pressure plates are symmetrically installed on the upper surface of the T-shaped plate, and a pressure dividing plate is fixedly supported between the two side plates, and a capsule is placed on the pressure dividing plate. Both of the two L-shaped pressing plates include a horizontal section and a vertical section, the horizontal sections of the two L-shaped pressing plates are located above the capsule, and the vertical sections of each of the L-shaped pressing plates slide through the dividing plate, One of the side panels is also provided with a trigger mechanism. The invention does not affect the ventilation of the cable trench under the condition of no vehicle passing, and when a vehicle passes through the cover plate, the device will automatically rigidly support the middle part of the cover plate to avoid damage to the structure of the cover plate.

The invention discloses a highly viscoelastic joint filling material for acid aggregate asphalt pavement, which is made of heavy traffic asphalt, polyhydroxy organic matter, elasticity regulator, rigidity regulator and waste rubber powder. This kind of joint filling material is designed for acid aggregate asphalt pavement, and the adhesion to acid aggregate in asphalt pavement can be improved by adding polyhydroxy organic matter; polyhydroxy organic matter can also be formed by interacting with waste rubber powder and elasticity regulator elastomer. This high-viscoelastic joint filling material for acid aggregate asphalt pavement simultaneously improves two major defects of commonly used joint filling materials at the same time, and is a road joint filling material with broad application prospects.