111results about How to "Limit lateral movement" patented technology

The invention discloses an integral stabilization test loading system of a steel beam with lateral constriction under an action of single point loading, comprising a reaction frame consisting of a reaction column and a reaction beam, a lateral constriction device consisting of a vertical rolling device and a horizontal rolling device, a load applying device consisting of a jack and a loading frame, a load collection device and a horizontal rotation device. The invention can better simulate the steel beam constriction condition at the loading point in stabilization test of the steel beam having the lateral constriction, and enables the test result to be accurate. Particularly, the invention releases the bending constriction and vertical displacement constriction of the steel beam in the plane and outside the plane through the lateral constriction device limiting the lateral displacement and twisting of the test steel beam of the loading point, the vertical rolling of the vertical rolling bearing and horizontal rotation of the horizontal rotation device.

The invention relates to a key and a keyboard with the same. The key comprises a bottom plate, a keycap, a protrusion and a lifting support device. The protrusion is arranged at the bottom of the keycap. The lifting support device is disposed between the bottom plate and the keycap and is provided with a first end, a second end and a recess between the first end and the second end. The first end is opposite to the second end. The first end is movably connected to the keycap. The second end is movably connected to the bottom plate. The protrusion is movably inset in the recess when the keycap moves down through the lifting support device, so that when the keycap moves relative to the bottom plate, the first end leaves the keycap. The key and the keyboard with the same have the advantages of simple structure and easiness in assembly. The transverse movement of the keycap can be limited by effectively utilizing the combination of the protrusion and the recess, so that the keycap is prevented from leaving the lifting support device.

The invention relates to a dual-drive speaker which comprises a U iron, a basin bracket, a magnet, a magnetic pole core, a voice coil, a positioning support chip and a membrane type cone, wherein the positioning support chip comprises a first positioning support chip and a second positioning support chip which are symmetrical, two ends of the first positioning support chip and the second positioning support chip are respectively provided with two first positioning half rings and two second positioning half rings; the two first positioning half rings are connected by a first connecting body, two ends of the first connecting body outwards extend to form two first terminals; the two second positioning half rings are connected by a second connecting body, two ends of the second connecting body outwards extend to form two second terminals; the top of the voice coil is tightly jointed with the lower surfaces of the first positioning half rings and the second positioning half rings; the lower surface of the membrane type cone is tightly jointed with the upper surfaces of the first positioning half rings and the second positioning half rings, and the lower surfaces of the first connecting body and the second connecting body are tightly jointed with the upper surface of the outer edge of the basin bracket. The invention has skillful and reasonable structure, stable work, thin structure and less distortion.

The invention belongs to the technical field of foundation treatment, and relates to an embankment structure and a construction method. The embankment structure comprises a bearing stratum, a soft soil foundation, an embankment filling, and an embankment settlement reducing structure which is arranged between the soft soil foundation and the embankment filling and embedded in the soft soil foundation; the embankment settlement reducing structure comprises pile caps, a piece of waterproof geotechnical cloth, a concrete sealing ditch, a microbial modified reinforced cushion, embedded bars, a pile cap cover plate and a concrete pile group; the concrete pile group consists of m line*n column reinforced concrete thin-walled pipe piles; the pile cap is arranged at the top of each reinforced concrete thin-walled pipe pile; the embedded bar inserted into the pile cap is fixedly arranged on the upper surface of the pile cap; the pile cap cover plate is connected with the pile cap through the embedded bar; the waterproof geotechnical cloth is paved at the top and bottom of the microbial modified reinforced cushion; the embankment filling is arranged on the upper surface of the waterproof geotechnical cloth at the top of the microbial modified reinforced cushion; the waterproof geotechnical cloth is sealed at the bottom of the concrete sealing ditch. The embankment structure and the construction method have the advantages of reasonable structure, convenience in construction and capability of effectively reducing embankment settlement.

The invention discloses a road inspection well structure. The technical scheme of the road inspection well structure is characterized in that the road inspection well structure comprises a shaft arranged in a well pit, a well base arranged on the shaft, and a well cover arranged on the well base; a bolt stretches out of the top face of the shaft and penetrates the well base to be connected with a nut; an asphalt pavement is arranged on the periphery of the well base; and a protecting cover used for shielding the bolt and the nut is buried in the asphalt pavement. The road inspection well structure solves the problem that when an existing road inspection well structure is maintained, the construction efficiency is low.

The invention discloses a seal marking machine. The machine comprises a body; the body comprises a bottom plate, a pressing plate and a magnetic attraction structure, wherein the bottom plate is usedfor placing a carrier and a seal, the pressing plate is matched with the bottom plate to press the carrier and the seal, and the magnetic attraction structure is used for limiting the transverse relative movement of the pressing plate and the bottom plate; and the upper surface of the bottom plate is provided with a working space for placing the carrier and the seal. According to the machine, theseal and carrier are pressed tightly through the seal and the carrier are tightly pressed by the pressing plate and the bottom plate so as to mark a pattern on the carrier, and the magnetic attractionstructure is arranged, so that the transverse movement of the pressing plate relative to the bottom plate is limited; and meanwhile, the pressing plate and an elastic telescopic structure can horizontally move downwards in the pressing process, so that the seal fixed on the pressing plate keeps the accurate positioning of the bottom plate, the seal can be repeatedly marked at the same position onthe carrier, meanwhile, the machine is adapted to the seals with different thicknesses, the seal is stressed uniformly, the printed patterns are complete and uniform, and the pattern is more attractive; and the machine is simple in structure, small in size, easy to operate, convenient to carry, low in manufacturing cost and suitable for any people.

A stabilizer bar bush assembly comprises a stabilizer bar bush and a pressing piece. The stabilizer bar bush is a plastic part, the pressing piece is an iron part, flanges of large transitional arcs are arranged at two ends of the stabilizer bar bush, flanges of large transitional arcs are arranged on two sides of the pressing piece and are in close fit with the flanges of the large transitional arcs at the two ends of the stabilizer bar bush, and the radian R of each flange of the corresponding large transitional arc at the corresponding end of the stabilizer bar bush is 1.5-3 times of the wall thickness delta of the pressing piece; a bump is arranged on the middle upper portion of the stabilizer bar bush, a bump is arranged in the middle of the pressing piece, and the bump in the middle of the pressing piece is in close fit with the bump on the middle upper portion of the bush; and openings of the stabilizer bar bush are arranged on side surfaces of the stabilizer bar bush. The stabilizer bar bush assembly has the advantages that transverse shifting of a stabilizer bar can be effectively limited, normal operation of the stabilizer bar is guaranteed, the service life of the stabilizer bar bush can be prolonged, and noise and abnormal sound can be effectively reduced.

The invention discloses a vacuum drying box which comprises a box body opened in the side part and an openable cover body for closing the opening in the side part. A sealing adhesive tape is arrangedat the opening in the side part of the box body along the opening edge. The cover body comprises a cover main body, a sealing plate and a condensing liquid collecting tank. The cover main body is rotatably connected to the box body, the sealing plate is fixedly mounted on the inner side of the cover main body, the condensing liquid collecting tank is horizontally and fixedly mounted on the inner side of the sealing plate, and the condensing liquid collecting tank is opened upwards; the opening in the side part is closed, and the sealing plate is tightly attached to the sealing adhesive tape. Condensed flowing liquid drops can be collected in the tank, and the liquid in the tank can be scrubbed by a towel to be cleaned, so that corrosion of the liquid drops to the sealing adhesive tape andthe edge of the box body is prevented, and the service life of the vacuum drying box is prolonged greatly.

The invention provides a water drainage and storage concrete pavement structure, which comprises an embankment, a semi-rigid base layer, a bonded waterproof layer, a lower assembly board and an upperassembly board in sequence from bottom to top, wherein a flexible waterproof layer and a plate drainage board are arranged at a lateral joint of the lower assembly board and the upper assembly board,end plates are arranged on the outer side of the lower assembly board, the end plates and the lower assembly board are integrally prefabricated, the top surface elevation is the same as the elevationof an outer side slow track, and prefabricated water tanks are arranged at the lower side of the slow track and the outer side of the lower assembly board. According to the invention, the upper assembly board is arranged between the end plates on the outer side of the lower assembly board, and the flexible waterproof layer and the plate drainage board are arranged at the lateral joint of the upperassembly board and the lower assembly board, so that not only is the lateral movement of the upper assembly board limited, but also the influence of temperature stress on the single-layer board can be reduced, and the interlayer movement of a water body can be achieved. The prefabricated water tank is arranged on the outer side of the lower assembly board and communicated with a built-in drain pipe, so that rainwater on a road surface can be stored and reused.

The invention relates to a damping energy dissipation assembling node of a precast column and an integrated precast beam panel, and a construction method thereof. The assembling node comprises the integrated precast beam panel and the precast column, wherein the precast column comprises a lower precast column and an upper precast column; flaring steel pipes I are pre-embedded to the upper surfaceof the lower precast column; the integrated precast beam panel is arranged on the lower precast column and is pre-embedded with a damping steel pipe and multiple necking steel pipes; the upper precastcolumn is arranged on the integrated precast beam panel; a connecting steel pipe and multiple flaring steel pipe II are pre-embedded to the lower surface of the upper precast column; the free end ofthe connecting steel pipe extends into the damping steel pipe; the flaring steel pipes I and the flaring steel pipes II are coaxial in a one-to-one correspondence way and extend into two ends of the corresponding necking steel pipes; flaring parts are arranged at the free ends of the flaring steel pipes I and the flaring steel pipes II; necking parts are arranged at two ends of the necking steel pipes; the corresponding flaring parts of the flaring steel pipes I and the flaring steel pipes II are clamped into the necking parts so as to realize clamping; a connecting structural steel is also preserved on the upper surface of the lower precast column; the free end of the connecting structural steel penetrates through the damping steel pipe and extends into the connecting steel pipe.

The invention discloses a double-contact coaxial connector with a switch, which comprises an insulated fixed seat, a conductive shell and a switching mechanism, wherein a movable terminal of the switching mechanism is provided with two movable terminal contact parts which are used for being electrically connected with a static terminal contact part of a fixed terminal; and when a plug pin is inserted into the insulated fixed seat, the two movable terminal contact parts are respectively arranged at two sides of the plug pin or the extension line of the plug pin. Because the movable terminal of the invention is provided with two movable terminal contact parts, when one contact has a fault due to pollution or other reasons, the other contact is still effective, thereby prolonging the service life of the coaxial connector with the switch; moreover, the contact resistance between the movable terminal and the fixed terminal is reduced in multiple, thereby reducing the energy loss of signals transmitted between the movable terminal and the fixed terminal, and improving the radio-frequency transmission index of signal transmission of the coaxial connector with the switch; and in addition, the invention can ensure that the plug pin is accurately positioned.

The invention belongs to the technical field of injection molding machines and provides a mechanical safety mechanism of an injection molding machine. The mechanical safety mechanism of the injection molding machine comprises a mechanical safety rod, a sliding rod and a mechanical safety rotary rod, wherein the mechanical safety rod is fixedly connected with a movable wall of the injection molding machine. A front limiting block and a rear limiting block are respectively arranged on the injection molding machine, the mechanical safety rotary rod is penetratingly arranged between the front limiting block and the rear limiting block, the sliding rod is in parallel connection with the mechanical safety rotary rod, a door control safety pulley is fixed on the mechanical safety rotary rod, and a mechanical safety stopper matched with the mechanical safety rod is fixed on the sliding rod. The mechanical safety mechanism of the injection molding machine has the advantages that high safety is achieved, and a pawl of the mechanical safety rod is locked by the mechanical safety stopper to limit transverse movement of the mechanical safety rod, so that the injection molding machine cannot perform the mold closing action so as to realize shutdown protection, and personal injuries can be effectively avoided.

The invention relates to the field of measurement tests of a normal contact force of a particle system under an impact force and in particular relates to a normal contact force testing method of a spherical particle system under an impact effect. The normal contact force testing method comprises the following steps: vertically stacking a plurality of experiment balls in an organic glass round pipe; sticking a thin film pressure sensor capable of detecting pressure on a contact surface between the experiment balls; applying an impact load on the experiment ball at the top by adopting a pressurizing mechanism, and recording the impact load applied by the pressurizing mechanism through a force hammer sensor; recording the size of the contact force between the experiment balls through the thinfilm pressure sensor and a data acquisition and processing circuit box; applying the different impact loads and repeating testing steps. The normal contact force testing method provided by the invention can be used for quantitatively controlling the size of the impact load so that a relatively reasonable force application range is determined; a dissipation rule of the normal contact force betweenthe balls also can be researched through a time-history curve of applying the load through a force hammer, and a time-history curve of the normal contact force between the balls.

The invention discloses a steam heating type cooking utensil, belongs to the field of kitchen household appliances, and solves the problem that pots in existing steam rice cookers cannot be taken andplaced conveniently. The steam heating type cooking utensil includes a machine body and a pot externally arranged on the machine body. The machine body is provided with a steam generator and a steam outlet communicating the steam generator; the pot includes a pot body, a pot cover and an arm-type handle arranged on the pot cover, and the pot body and the pot cover are defined to be arranged outside a cooking cavity; and the arm-type handle is provided with a butt joint part extending out of the peripheral side of the pot cover, a steam butt joint port communicating the cooking cavity is arranged on the butt joint part, and the butt joint part is in butt joint with the machine body so as to enable the steam butt joint port to communicate the steam outlet. The steam heating type cooking utensil optimizes the connection mode between the pot and the machine body, thus eliminating an original machine head, the appearance of the cooking utensil can be more exquisite and the pot can be more convenient to take and place.

The invention relates to a multi-point excitation source loudspeaker sound box. At least two middle holes distributed along the direction of a long axis are arranged at the bottom of a lower casing, a magnetic circuit system is disposed in each middle hole, an upper casing is tightly combined with the lower casing, a positioning groove is arranged on the upper casing, a single positioning support chip and a single sound cone are arranged, the positioning support chip is installed in the positioning groove, the positioning support chip is divided into two half pieces which are symmetrical along the direction of the long axis, a plurality of half positioning rings are arranged on each half piece of the positioning support chip, the quantity of the half positioning rings is equal to that of the magnetic circuit systems, the plurality of half positioning rings on the two half pieces of the positioning support chip correspondingly form a plurality of complete positioning rings, the lower surface of each complete positioning ring is combined with the tops of voice coils in corresponding magnetic circuit systems, the two half pieces of the positioning support chip extend to form terminals, the terminals are connected with positive and negative poles of leading wires of the voice coils respectively, the sound cone is installed above the positioning support chip, and the lower surface of the sound cone is tightly combined with the upper surface of the positioning groove on the upper casing and the upper surfaces of the complete positioning rings. The multi-point excitation source loudspeaker sound box is ingenious and reasonable in structure and capable of excellently matching with a light emitting diode (LED) television.

The invention discloses a geocell composite reinforcing rib ecological retaining wall and a construction method thereof. The ecological retaining wall comprises retaining wall units sequentially constructed from bottom to top, and each retaining wall unit comprises a bottom geocell layer, a unidirectional geogrid, at least one inverse filter inclusion layer, a bidirectional geogrid and a filling layer. The construction method includes: S1, performing earth excavation and pouring retaining wall rigid strip foundation; S2, laying geocells, and filling filler in the geocells; S3, carrying out unidirectional geogrid return construction; S4, arranging the bidirectional geogrid; S5, repeating the steps until a retaining wall design height is achieved. By adoption of the geocells with a stereo reinforcing rib structure as a bottom layer structure, the geocells are filled with the filler, the unidirectional geogrid is laid at the top of the leveled filler in the geocells, and the inverse filter inclusion layers are arranged while the bidirectional geogrid is arranged between every two composite reinforcing rib layers, structural stability of the ecological retaining wall is guaranteed by layer-by-layer construction, and simplicity in construction is realized.

The invention relates to a support structure for a chimney internal steel cylinder. The support structure comprises a chimney external concrete cylinder and the internal steel cylinders, wherein the internal steel cylinders are positioned in an inner cavity of the chimney external concrete cylinder. The support structure is characterized in that the outer surface of each internal steel cylinder is connected with a reinforcing ring in a sleeved way and is provided with a plurality of steel corbels and a plurality of hoisting projected lugs; the inner cavity of the chimney external concrete cylinder is provided with a square frame body formed by defining and connecting a plurality of steel beams; the internal steel cylinders are positioned in the square frame body and are hung on the square frame body to form a hanging type hoisting structure; the steel corbels are positioned at the vertex angles of the square frame body; the bottom of each steel corbel is connected with a corbel steel beam; each of the two ends of each corbel steel beam is fixedly connected with the adjacent steel beam of the square body, so that a longitudinal support structure of the internal steel cylinders is formed; each hoisting projected lug is provided with a hoisting hole through which a steel wire passes; and each internal steel cylinder is hung on the square frame body through a steel hanging wire, so that a transverse support structure of a hanging structure is formed. The support structure has the advantages that the reasonable mechanical arrangement is used; the steel strength can be sufficient; the cylinder wall stress is mainly tensioned force, so that the wall thickness can be reduced; and the engineering quantity is reduced.

The invention relates to a horizontal stabilizing device, which comprises a stabilizing rod and a bushing covering on the stabilizing rod; the cross section of the joint of the stabilizing rod and the bushing and the cross sections of the two ends of the joint are not arranged in the same plane; and the shape of the joint is matched with the shape of the hole arranged on the bushing; a clamping base covers on the bushing and fixes the stabilizing rod and the bushing on a vehicle body or an auxiliary vehicle frame. The invention successfully limits the horizontal movement of the stabilizing rod, thereby not only achieving natural limit, but also improving the roll stiffness of the vehicle suspension.

The invention relates to the technical field of marine diesel engines, discloses an intelligent marine diesel engine attitude adjusting device, and aims to solve the problems that when a propulsion shafting of a ship runs, vibration is inevitably generated due to the influence of dynamic factors such as propeller hydrodynamic force, hull deformation and a lubricating film, and meanwhile, the operation of a diesel engine connected with the propulsion shafting also generates vibration; according to specifications, the marine diesel engine and the propulsion shafting must be subjected to vibration checking calculation, so that vibration sources are controlled, vibration is reduced, vibration sources are isolated, and equipment and personnel are protected; the intelligent marine diesel engine attitude adjusting device comprises a diesel engine upper-layer base, a diesel engine lower-layer base, a lateral clamping mechanism, swing jacking mechanisms, a ship body attitude sensor and a controller, and the controller controls the multiple swing jacking mechanisms to independently operate according to ship body attitude information obtained by the ship body attitude sensor. Posture adjustment of the lower-layer base of the diesel engine is achieved so as to reduce / eliminate swing amplitude of the marine diesel engine caused by stormy waves.

The invention relates to a lock device for a card connector and a card connector having the same. In a push-in / push-out type card connector, a lock spring (19) is made of a leaf spring and comprises a fixed end part (46) with a base end fixed to a slider (12), a projection part (21) engaged with a recessed part (16) of a memory card (11) and a curve part (44) on the tip. The card connector is provided with a shock absorbing member (51) which faces a position of the curve part (44) when an unlocked eject part (25) in a connector body (58) is unlocked. The shock absorbing member (51) can be formed by cutting a part of a front plate part (49) in a metal cover (30) and raised it to bend in a U shape, or be formed integrally with a housing (10). The invention provides a lock device for a card connector and a card connector having the same, which can prevent the card from dropping when the memory card is engaged with the card connector, prevent the card from being directly drawn out and prevent the card from jumping out when discharging.

A disc brake pad backplate assembly (133) including a backplate (134) and pad spring (124), the backplate and / or pad spring comprising retaining means (150) to mount the pad spring to the backplate and circumferentially spaced abutments (140) arranged so as to be capable of restraining lateral movement of end portions (142) of the pad spring, the pad spring being dimensioned relative to the spacing of the abutments such that a radially inward loading applied at a central portion (148) of the spring causes the spring to function in a first resilient leaf spring-like mode in which the pad spring end portions are unrestrained up to a predetermined load limit, and such that above the predetermined load limit, the end portions are restrained by the abutments such that the pad spring functions in a second buckling mode, the spring rate being relatively low in the first mode and relatively high in the second mode.

Actuator stem guide apparatus for use with fluid valve actuators are described. An example actuator stem guide apparatus includes a base having an opening ( 310 ) to allow an actuator stem ( 230 ) of the fluid valve actuator to tilt or lean within the base to enable a lever of the fluid valve actuator to rotate and a guide receiving area adjacent the opening of the base. A guide ( 304 ) is coupled to the guide receiving area and the guide has a bearing surface ( 316 ) to slidably engage the actuator stem to limit lateral movement of a diaphragm assembly relative to a longitudinal axis of the opening to prevent the diaphragm assembly from engaging an inner surface of an actuator housing as the actuator stem moves between a first position and a second position.

A disc brake pad backplate assembly (133) including a backplate (134) and pad spring (124), the backplate and / or pad spring comprising retaining means (150) to mount the pad spring to the backplate and circumferentially spaced abutments (140) arranged so as to be capable of restraining lateral movement of end portions (142) of the pad spring, the pad spring being dimensioned relative to the spacing of the abutments such that a radially inward loading applied at a central portion (148) of the spring causes the spring to function in a first resilient leaf spring-like mode in which the pad spring end portions are unrestrained up to a predetermined load limit, and such that above the predetermined load limit, the end portions are restrained by the abutments such that the pad spring functions in a second buckling mode, the spring rate being relatively low in the first mode and relatively high in the second mode.

The invention discloses a three-dimensional multi-directional displacement comb tooth telescopic device, and belongs to the field of bridge expansion joint devices. The three-dimensional multi-directional displacement comb tooth telescopic device includes a corresponding comb tooth main tooth plate, a comb tooth auxiliary tooth plate, a main tooth fixing plate, the main tooth fixing plate is movably connected with the comb tooth main tooth plate, a multi-directional displacement device is mounted under the joint between the main tooth fixing plate and the comb tooth main tooth plate, the multi-directional displacement device includes a spherical universal bearing, a connecting shaft, and an anchoring connection plate, the spherical universal bearing and the anchoring connection plate are staggered and distributed on the same horizontal plane, and the connecting shaft connects the spherical universal bearing and the anchoring connection plate together and connects the main tooth fixingplate and the comb tooth main tooth plate together at the same time. The three-dimensional multi-directional displacement comb tooth telescopic device has the advantageous that shock resistance is extremely high, garbage is self-cleaned, mounting is conducted without bolts, synchronous movement in the longitudinal direction, the horizontal direction, and the vertical direction is realized, and theservice life is long.

The invention discloses a remote control device for lifting intelligent equipment and an installation method of remote control device. The remote control device comprises a base, wherein a lower hinged support is fixedly connected to a top end of the base, a movable box is arranged at the top end of the base, two upper hinged supports are symmetrically and fixedly connected to a bottom end of the movable box, and round holes are formed in one sides of the upper hinged supports and the lower hinged support; a top end of the movable box is provided with a movable cover plate, the movable box is internally provided with a bearing seat, a top end of the bearing seat is provided with a control device body, a top end of the bearing seat is symmetrically and fixedly connected with four positioning columns, outer sides of the positioning columns are provided with external threads, and tops of the positioning columns are sleeved with fastening caps in a threaded mode. The control device is advantaged in that through the design of the lifting mechanism, the bearing seat drives the control device body to rise to a proper height together, and the control device body can be freely mounted and dismounted, so an operator can conveniently use the control device body.

The invention discloses a bending tester for tools and utensils. The bending tester comprises a guide rail, a universal tester loading part and two mobile terminals and is characterized in that the loading part is fixed on the guide rail; the guide two mobile terminals are slidably arranged on the guide rail and respectively arranged at two ends of the universal tester loading part; each mobile terminal comprises a frame and a bracing frame arranged above the frame; each frame comprises a frame body, a roller cooperated with the guide rail and a roller locking mechanism; and each bracing frame is provided with supporting wheels used for placing of a sample. The bending tester has the advantages of good versatility, high test accuracy, low labor intensity and high test efficiency.

The invention relates to the technical field of regeneration and cyclic utilization of modified asphalt, in particular to a toughness enhancer for repeated regeneration of aged SBS modified asphalt aswell as a preparation method and application thereof. The invention relates to a toughness enhancer for repeated regeneration of aged SBS modified asphalt. The toughness enhancer comprises the following components in parts by mass: 50-100 parts of polyester fibers, 20-50 parts of rubber particles, 20-50 parts of synthetic resin, 2-10 parts of an anionic surfactant and 2-10 parts of activated carbon. According to the toughness enhancer for multiple times of regeneration of the aged SBS modified asphalt as well as the preparation method and application of the toughness enhancer, the toughness enhancer can greatly improve the toughness of the regenerated SBS modified asphalt, so that the regenerated SBS modified asphalt can satisfy the use requirements after multiple times of aging.