34results about How to "Enough deformation space" patented technology

The invention discloses a fabricated steel structure beam-column connection joint and a connection method thereof. The fabricated steel structure beam-column connection joint is used for solving the problem that an existing joint is poor in anti-seismic performance and for connection of a steel beam and a steel column. The end of the steel beam is a connection part, and a set of plate-shaped spring assemblies is arranged in each of mounting grooves on the two sides of the steel beam. A concrete block formed by grouting is arranged in a grouting space between a grouting trough and the inner wall of a rectangular steel pipe. A transition connection part is composed of a steel plate and the rectangular steep pipe, wherein the steel plate is fixed to the steel beam through a high-strength bolt, a plug-in part is formed in the rectangular steel pipe, and the connection part is inserted into the plug-in part to form partial overlapping. Anchor pulling holes are formed in the plate-shaped spring assemblies, a separation plate and the steel column, after a steel cable penetrates through the anchor pulling holes, the two ends of the steel cable are fixed to the steel column and the steel beam correspondingly. Under a non-seismic state, the joint is rigid connection, under a seismic state, movable flexible connection is formed, and thus the problem of fragile fracturing brought by the rigid joint can be avoided.

The invention belongs to the technical field of rock engineering, and particularly relates to a variable-stiffness elastic energy storage device and a method thereby for testing rock instability. Theinvention has the following technical scheme that the variable-stiffness elastic energy storage device comprises a pressure head, a guide rod, a base, a gasket and a disc spring, wherein the guide rodis vertically installed on the center of the base; the gasket and the disc spring are independently sheathed to the guide rod; the end of the guide rod is provided with a guide hole; the center of the pressure head is provided with a guide post; the guide post and the guide hole are matched; and the guide post is placed in the guide hole. By use of the variable-stiffness elastic energy storage device and the method thereby for testing rock instability, the variable-stiffness elastic energy storage device has the characteristics of small land occupation, large stiffness regulation range, convenience in processing and manufacture, low maintenance and repairing cost and long service life and can be combined with various rock mechanical test machines, and an instability testing method is adopted to test rock instability characteristics under different test conditions.

The invention discloses a steel tube end seal ring and a sealing device, and belongs to the technical field of sealing equipment. The steel tube end seal ring comprises a seal ring body and a supporting block arranged in an annular groove, and a steel tube seal peripheral edge and an end face seal peripheral edge are arranged on the end face of the seal ring body; an arc-shaped supporting groove is formed in the end face of one side of the seal ring body; a convex ring provided with a through groove is arranged on the outer circumferential face of the seal ring body. The sealing device comprises a sealing head and a locating sleeve which are mutually matched, and the steel tube end seal ring is arranged in the sealing device. A supporting ring of the locating sleeve is arranged in a supporting groove of the sealing head in a jacking mode and a gap is reserved. The steel tube end seal ring and the sealing device have the advantages that the pre-sealing link is omitted, the efficiency is improved, and cost is saved; the problem that the seal ring droops is solved, so that a pressure testing head can be designed smaller, and therefore a high-pressure test can be conducted on steel tubes with the diameter phi being larger than six hundred and thirty millimeters; the gap between the supporting groove and the supporting ring guarantees the effect that the seal ring body can be moved in place during pressure exertion, and after pressure is removed, the seal ring body can recover the original shape.

The invention discloses an automobile exhaust system and an exhaust pipe clamp device thereof. The exhaust pipe clamp device comprises a first arc-shaped outer board and a second arc-shaped outer board which are detachably connected. The first arc-shaped outer board and the second arc-shaped outer board are connected in the manner that openings are opposite. First metal wire damping blocks and first inner boards are sequentially installed inwards on the inner wall of the first arc-shaped outer board. Second metal wire damping blocks and second inner boards are sequentially installed inwards on the inner wall of the second arc-shaped outer board. An installation hole is formed by the first inner boards and the second inner boards. An exhaust pipe penetrates the installation hole and is fastened. Therefore, the metal wire damping blocks are arranged between the corresponding inner boards and outer boards, so that oil dirt and dust are prevented from being accumulated on the damping blocks, and the service life of the damping blocks is prolonged.

The invention discloses an energy-absorbing highway guardrail and a damping elastomer. The guardrail comprises a plurality of anti-collision guardrail units, each anti-collision guardrail unit comprises a corrugated plate, a standing column, the damping elastomer and a fastener, wherein the corrugated plates are fastened to the damping elastomers through the fasteners, and the adjacent anti-collision guardrail units are connected into a continuous guardrail through the corrugated plates; the damping elastomers are of single spiral structures, at least part of spiral gaps of the single spiral structures are filled with energy dissipation fillers and/or elastic fillers, the single spiral structures are installed on the stand columns, the end parts of the inner ends of the single spiral structures are fixed to the stand columns, and the end parts of the outer ends of the single spiral structures are fixed to the corrugated plates. The guardrail can be used for replacing an existing guardrail system, has stronger protection strength, the rigidity of a waveform guardrail, elasticity and excellent energy absorption and energy absorption as well as a more protective effect.

The invention relates to a shock absorber of a seat type lamp, which belongs to the technical flied of lamp illumination. The shock absorber of the seat type lamp comprises a shock-absorbing elastic part, wherein a rigid outer cover fixedly connected with the bracket of the seat type lamp is sleeved outside the upper part of the shock-absorbing elastic part, the rigid outer cover is lower than the shock-absorbing elastic part, a groove is arranged at the bottom of the shock-absorbing elastic part, a flexible rigid inside lining is sleeved in the groove, and the rigid outer cover is fixedly connected with the rigid inside lining. The invention provides the shock absorber of the seat type lamp, which has simple structural design and good shock-absorbing performance.

The invention relates to a motor comprising a base, a bearing, a positioning piece, a rotor and a stator. The base is provided with a shaft tube; the bearing is arranged in the shaft tube and provided with a through hole and a concave part having an axial direction; the positioning piece is combined with the bearing, provided with a perforation and a plurality of grooves and has a radial direction from the inner hole wall of the perforation to the inner hole wall of the through hole of the bearing, wherein the radial direction is no more than the axial direction; the rotor is provided with a rotating shaft which is combined with the through hole of the bearing; and the stator is sleeved on the outer peripheral surface of the bearing. Accordingly, the invention can utilize the concave part of the bearing to provide the positioning piece with an enough deformation space, thereby facilitating the assembly operation of the rotor and the positioning piece and effectively preventing the positioning piece from being damaged in the assembly process.

The invention discloses an assembly type underground garage. The garage comprises underground walls, a top plate, a bottom plate and at least three middle parking layers. Permanent upright columns are vertically arranged in the underground garage. The top plate and each middle parking layer both comprises a purlin supporting the corresponding underground wall, an oval ring bracket abutting against the inner wall of the purlin, two first supporting beams and a plurality of second supporting beams, wherein the two ends of each first supporting beam abut against the oval ring bracket and are supported on the corresponding permanent upright column, and the second supporting beams are supported between the first supporting beam and the oval ring bracket. The bottom parking layer is arranged on the bottom plate. The bottom parking layer and each middle parking layer are both provided with a vehicle carrying board capable of moving. Reinforcing treatment is conducted between prefabricated components of the underground garage, the integrity of the underground garage structure is improved, and accordingly the anti-seismic property of the underground garage is improved. The invention further discloses a building method of the underground garage.

The invention provides a display screen folding structure. The display screen folding structure comprises a flexible display screen film, a first body and a second body, wherein the first body and thesecond body are used for supporting the flexible display screen film, the first body and the second body are connected in a relatively rotating mode through a middle hinge piece, and an accommodatingspace is defined by a first adjacent part, two first connecting side plates, two second connecting side plates and a second adjacent part; the middle hinge piece is arranged in the containing space and comprises a containing groove which penetrates through the left-right direction and is concave inwards in the direction away from the flexible display screen film. According to the present invention, the upper surface of the pivot joint shaft or the middle hinge piece is prevented from protruding upwards, so that the problem that in the prior art, a solid pivot joint shaft body is thick and large, so that the attractiveness is affected is solved, meanwhile, the display screen film can be laid on frames on the left side and the right side of the middle hinge piece in an extending mode, so that the maximization of the display screen can be achieved.

An elastic mounting structure for an LED lamp comprises the LED lamp, a lamp panel and a radiator. The lamp panel is fixed on the radiator, a rectangular structure is arranged in the middle of the lamp pane, a radiation boss matched with the hollow structure of the lamp panel is arranged on the radiator, and the LED lamp is fixed on the lamp panel and in direct contact with the radiation boss. Four screw holes are distributed uniformly in the four corners of the lamp panel, a cambered process groove is manufactured nearby each cambered screw hole, cambers of the process grooves are bent towards the LED lamp, and the four process grooves are independent relatively. By the aid of the process grooves, air heat convection channels are provided in the whole lamp, the lamp panel portion except the process grooves has enough deformation space, and accordingly, the damage rate during mounting can be reduced.

The invention discloses a device for vapor deposition of films. The device comprises an upper reaction cavity cover, a reaction cavity base and a heater. The reaction cavity base is used for bearing substrates and is movably connected to the upper reaction cavity cover for forming a vapor deposition reaction cavity, and the back of the reaction cavity base makes contact with the heater for conducting heat. The reaction cavity base is round and is provided with an annular groove. The device for vapor deposition of the films can guarantee that the whole reaction cavity will not be deformed seriously, and therefore the uniformity of the films can be guaranteed.

The invention relates to a hundred-system element learning sliding ruler which comprises a base body, a plurality of parallel sliding grooves are formed in the base body in columns, sliding pieces arearranged in the sliding grooves, hundred-system elements are marked on the sliding pieces, and the multiple sliding pieces can independently stretch out and draw back along the sliding grooves so that different sliding pieces can be exposed out of the base body. According to the invention, the learning of the hundred-system elements can be realized conveniently.

The invention relates to a double-defense-line flexible anchoring structure of a dam body core wall geomembrane and a foundation concrete structure. According to the double-defense-line flexible anchoring structure of the dam body core wall geomembrane and the foundation concrete structure, a geomembrane in a dam body can be fixed to foundation concrete below the geomembrane. According to the technical scheme of the double-defense-line flexible anchoring structure, an anchoring groove is formed in the top face of the foundation concrete, the interior of the anchoring groove is divided into a plastic deformation area located on the upstream side and formed by filling plastic filler and an anchoring mechanism located on the downstream side, and the geomembrane penetrates through the plasticdeformation area to be fixed to the downstream side in the plastic deformation area through the anchoring mechanism. The double-defense-line flexible anchoring structure is suitable for engineering adopting the geomembrane as the middle anti-seepage core wall of the dam body.

The invention discloses a shifting drive structure assembly of a gear shifter. The shifting drive structure assembly comprises a driving member and a shifting member used for driving a shift fork. The driving member fits the shifting member by means of elastic driving. A shifting structure with the driving member directly elastically driving the shifting member and the shift fork is adopted, the prior common structures such as a shift drum are omitted, box manufacturing is simplified, overall structure is simple and compact, manufacturing precision requirement is low, overall structure of a shifting mechanism is simplified, and a transmission is simple in overall structure, lighter in weight and good for energy saving and consumption reduction; elastic driving allows smooth and convenient shifting, rigid contact is avoided, shifting comfort is increased, riding comfort is increased, and the service lives of the parts can be guaranteed.

The invention discloses an adjustable cloth hanging needle combination mechanism used for low-pressure injection molding. The adjustable cloth hanging needle combination mechanism comprises a cloth hanging needle, a sliding block, a sliding seat, a check block, a linear spring, a gasket, a limiting screw and fixed screws. The cloth hanging needle comprises a needle point, a knife edge, a straightsegment and a fixed head. The included angle of two faces of the knife edge is within 30 degrees. The straight segment and the fixed head are arranged on the sliding block. The sliding block is arranged on the sliding seat. The check block is arranged on the sliding seat and used for limiting the sliding block. The limiting screw is fixed to the sliding block. The linear spring is arranged on thelimiting screw. The gasket used for preventing the linear spring from falling off is further arranged on the limiting screw. The cloth hanging needle combination mechanism is fixedly mounted on a template, certain deformation space is given to cloth through the sliding part, and when sliding deformation space is insufficient, the cloth can be cut by the blade part, and deformation space is forcedto be given to the cloth.

The invention discloses a finishing correction die suitable for a special material welded pipe and a finishing machine. The finishing correction die comprises an upper die base and a lower die base, wherein the upper die base and the lower die base are fixed through a positioning pin, a cavity is formed by the interiors of the lower die base and the lower die base after the lower die base and thelower die base are closed, corresponding tiles are arranged in the cavity, die closing gaps are preset between the corresponding inner end faces of the lower die base and the upper die base after dieclosing, adjusting base plates are arranged at the two die closing gaps, the adjusting base plates are fixed to the corresponding inner end faces through stop bolts, it is guaranteed that the edges ofa welded pipe do not make contact with the outer surface of the special material welded pipe by adjusting the thicknesses and positions of the two adjusting base plates, the adjusting base plates comprise two sub-base plates which are combined into a whole to be in a hollow semicircular shape, and transition curved surfaces are arranged on the inner sides of the inner end faces of the upper die base and the lower die base. According to the finishing correction die suitable for the special material welded pipe and the finishing machine, the working performance is stable, diameter finishing capacity is large, the cavity of a die can be accurately and rapidly replaced, simple, exquisite and compact are achieved, special material welded pipes of various sizes can be finished and corrected, and efficient operation of a whole positive production line can be guaranteed.

The invention discloses a dynamic vibration absorber capable of automatically adjusting the frequency and an installation, regulation and control method thereof. The dynamic vibration absorber comprises an installation base which is used for the connection between the dynamic vibration absorber capable of automatically adjusting the frequency and a structure needing dynamic vibration absorption processing; an elastic structure which is mounted on the mounting base; a movable mass block which is movably mounted on the elastic structure, wherein according to the dynamic vibration absorber capable of automatically adjusting the frequency, the movable mass block moves on the elastic structure, and adjustment of the vibration suppression characteristic of the dynamic vibration absorber is achieved. According to the dynamic vibration absorber, the problems that the dynamic vibration absorption frequency of an existing dynamic vibration absorber is difficult to regulate and control, and the requirement for regulation and control personnel is harsh can be solved.

The invention provides a weather-proof fabricated building. According to the building, first connecting holes and second connecting holes are formed in a cross beam; the included angle between the axis of each first connecting hole and the axis of each second connecting hole is an acute angle or a right angle or an obtuse angle; the quantity of the first connecting holes and the quantity of the second connecting holes are both two or more; the first connecting holes and the second connecting holes are arranged at intervals; four parallel limiting grooves are uniformly distributed in the side wall of the cross beam; the upper part and the lower part of a wallboard are respectively provided with connecting mortises and connecting tenons; the free ends of the connecting mortises penetrate through the first connecting holes and then are connected with the connecting tenons to connect the wallboard and the limiting grooves in an inserting manner; connecting mortises and connecting tenons are arranged on the front part and the rear part of a floor correspondingly; the free ends of the connecting mortises penetrate through the second connecting holes and then are connected with the connecting tenons; the floor is connected with the limiting grooves in an inserted mode; the end parts of adjacent cross beams are connected with each other; the tops and the bottoms of stand columns are connected with the cross beams; and the side parts of the stand columns can be connected with two adjacent wallboards. The building has the advantage of good weather resistance.