61results about How to "Easy structure assembly" patented technology

The invention discloses a block assembly type yielding hollow grouting anchor rod. The block assembly type yielding hollow grouting anchor rod comprises a hollow anchor rod body, a hollow anchor cablerod body, a yielding device, a tray, a nut, a slurry stopping plug, an anchor cable hoop sleeve and a chambering device, wherein the yielding device, the tray, the nut and the slurry stopping plug are arranged on the hollow anchor rod body, the anchor cable hoop sleeve and the chambering device are arranged on the hollow anchor rod body, and the hollow anchor rod body is connected with the hollowanchor cable rod body through a connecting sleeve. The block assembly type yielding hollow grouting anchor rod can give full play to the advantages of an anchor rod and an anchor cable, not only canthe hanging action of the anchor rod to shallow surrounding rock be utilized, but also the stability of deep surrounding rock can be improved by utilizing the anchor cable, favorable independent and multipoint yielding effects on the hollow anchor rod body can be achieved by the yielding device, the whole harmony of the hollow anchor cable rod body is improved by a anchor cable hoop, multipoint grouting is realized by the chambering device, the rod body length can be freely adjusted according to requirement, and on-site construction and adjustment are convenient.

The invention discloses an energy-dissipation self-adaptive anti-seismic anchor rope structure which comprises a spring device, a sleeve type metal damper, an anchorage device, an anchorage device clamping piece, a bearing plate and a steel strand. The energy-dissipation self-adaptive anti-seismic anchor rope structure is characterized in that the spring device is arranged between the bearing plate on the end part of the anchor rope and the anchorage device; the sleeve type metal damper is arranged outside the spring device. A specific implementation method comprises the following steps: welding one end of the spring device with the bearing plate, penetrating the steel strand through the bearing plate and the spring device, tightly adhering the bearing plate to a concrete anchorage pier, arranging the sleeve type metal damper on the outer part of the spring device in a sleeving node, installing the anchorage device, penetrating the steel strand through the anchorage device and installing the anchorage device. The energy-dissipation self-adaptive anti-seismic anchor rope structure and the specific implementation method disclosed by the invention has the technical effects that the sleeve type metal damper and the spring device can be used for providing initial rigidity to meet the normal using function of the structure, the concentrated inner force generated on the anchorage device by earthquake load is reduced through the sleeve type metal damper, the self-restoration force after the earthquake is provided through the spring device, and the self-adaptive capacity of the structure is improved.

The invention provides a rotary high-temperature air preheater which is characterized by comprising an outer frame, wherein a supporting cylinder, a rotor and a transmission gear are arranged in the outer frame; the rotor is positioned on the supporting cylinder; the transmission gear is positioned on one side of the supporting cylinder; the transmission gear is connected with the rotor; the rotor is provided with an upper cover; and the upper cover is connected with the outer frame through an expansion guide. The invention can be quickly assembled, and can allow a furnace with input of about1200 DEG C to discharge waste gas; and by using the preheater, the temperature of the output hot air can reach about 1000 DEG C to the maximum, and the temperature of the discharged waste gas is reduced to below 200 DEG C.

The invention provides a rotary high-temperature air preheater. The air preheater is characterized by comprising an external framework, wherein the external framework is internally provided with a supporting barrel, rotors arranged on the supporting barrel and a transmission device arranged at one side of the supporting barrel; the transmission device is connected with the rotors; and an upper cover is arranged on the rotors and is connected with the external framework via expansion guiding devices. The air preheater has the following advantages: the air preheater can realize rapid assembly, allow input of waste gas (about 1200 DEG C) discharged from kilns, and realize that the highest temperature of the output hot air can be up to about 1000 DEG C and the temperature of the discharged waste gas can be reduced to 200 DEG C or below.

The invention discloses an electrically-controlled antenna control device with a pluggable function and belongs to the electrically-controlled antenna technical field. The device comprises an electrically-controlled antenna controller, a lower end cover, a reflecting plate and a transmission execution component; the electrically-controlled antenna controller is the power part of the whole device and comprises a stepping gear motor, a control panel and a lightning protection panel; control signals are transmitted to the control panel through an RS485; the control panel controls the motor to rotate; the motor drives a screw rod to rotate; the screw rod drives a sliding block to move linearly; and therefore, a phase shifter can be made to act to adjust phase. The electrically-controlled antenna control device has the advantages of pluggable function, simple structure and convenient operation. Compared with a built-in electrically-controlled antenna controller, the electrically-controlled antenna control device is advantageous in high reliability and convenient replacement. Compared with an externally-arranged electrically-controlled antenna controller, the electrically-controlled antenna control device can assist in full utilization of the internal space of an antenna and saving the installation space of an end surface, and therefore, much space can be left for an antenna feeder. The electrically-controlled antenna control device can be integrated in an electrically-controlled antenna unit, and therefore, errors in on-site installation and parameter configuration can be avoided, and overall reliability can be improved.

The invention discloses a two-stage separate type safe self-destruction syringe, which can reduce the manufacturing difficulty of retractable safe self-destruction syringes through structure modification. A syringe needle connecting base of the syringe comprises a locking cone head and a connecting base that can be separated along the axial direction, the front part of the locking cone head is connected with the syringe needle, the rear part of the locking cone head is limited by the connecting base, the front segment of a core rod is matched with the inner cavity of the syringe needle connecting base and a gap is formed between the front segment of the core rod and the inner cavity of the syringe needle connecting base, a first destruction structure and a second self-destruction structure are arranged at the front segment at an interval in the axial direction and are respectively corresponding to a first non-return structure arranged on the inner wall of the locking cone head and a second non-return structure arranged on the inner wall of the connecting base to form an axial one-way position limiting structure, and when the second destruction structure contacts with the second non-return structure, the first destruction structure is spaced with the first non-return structure. The separation force of the two-stage separate type safe self-destruction syringe can be effectively controlled. The two-stage separate type safe self-destruction syringe facilitates operation of medical care personnel, has good reliability, and is convenient in assembly and suitable for batch production.

The invention discloses an automobile filter capable of preventing dust accumulation, and a processing method thereof. The automobile filter comprises a shell, wherein one end of the shell is fixedly connected with an air outlet pipe in a sleeving mode, the inner wall of the other end of the shell is slidably connected with a front end cover in a sleeving mode, the outer wall of the shell is connected with the outer wall of the front end cover through countersunk bolts, a filter screen is fixedly installed on the inner wall of the front end cover, a connecting ring is integrally formed at the end, away from the filter screen, of the front end cover, the outer wall of the connecting ring is fixedly sleeved with a supporting net, filter paper is fixedly attached to the inner wall of the supporting net, a sweeping mechanism is installed between the filter screen and the supporting net, an ejection mechanism is installed between the inner wall of the front end cover and the filter screen, and a collecting mechanism is installed between the connecting ring and the shell. According to the invention, air enters along the front end cover, enters the inner wall of the shell through meshes of the supporting net after being filtered by the filter screen and the filter paper and finally enters an automobile through the air outlet pipe, airflow drives the sweeping mechanism to sweep off dust on the filter screen and the filter paper, and the collecting mechanism collects the dust, so that the situation that the using effect is affected due to dust accumulation in the filter is avoided.

An independent auto glass lifter switch comprises a base (3), an ejector pin (4), a dynamic contact piece (6), a shell body (2) and a button (1); the upper end face of the base (3) is provided with static contact pieces (7,7a), and the lower end face is provided with a pin (33) conductively communicated with the static contact pieces (7,7a); the shell body (2) is arranged at the upper end part of the base (3); besides, the button is rotatably arranged at the upper end part of the shell body (2) and can drive the ejector pin (4), so that the ejector pin (4) can drive the dynamic contact piece (6) to achieve the connection and disconnection between the dynamic contact piece (6) and the static contact pieces (7,7a). The independent auto glass lifter switch is characterized in that the switch also comprises a flexible insulator (5) arranged at the upper end face of the base (3) and contained in the shell body (2); the lower end face of the flexible insulator (5) is provided with the dynamic contact piece (6) corresponding to the static contact pieces (7,7a); and the upper end face of the flexible insulator (5) and the ejector pin (4) prop each other. Compared with the prior art, the independent auto glass lifter switch has the advantages that the switch has no spring reset mechanism and is restored, transited and driven through the flexible insulator; besides, the entire structure is compact and smart and is suitable for thinned and miniaturized product design.

The invention relates to the technical field of automobile parts, in particular to a rapid prototyping multi-purpose vehicle frame, including a front frame, a first steel plate, a central frame, a third connecting structure and a rear frame, wherein the front frame comprises a lower chassis and an upper support frame, the lower chassis is arranged below the upper support frame, the lower chassis comprises a front cross beam, a rear cross beam and the first longitudinal beams, two first longitudinal beams are welded between parallel front and rear cross beams, and the upper support frame includes a first bending beam, an upper cross beam and a connecting inclined beam. The vehicle frame is convenient to assemble, and the rapid prototyping is adopted to greatly reduce the production cost andthe research and development cost of the vehicle frame. Square steel standard parts are adopted to process the front frame, the middle frame and the rear frame, thereby modularizing the production ofthe vehicle frame and further reducing the processing cost and the cost of the later maintenance of the vehicle frame.

A rotor structure of a vehicular generator comprises a rotating shaft, a front claw pole, a rear claw pole, a rear bearing, a collector ring, and an exciting coil assembly, wherein the front claw pole, the rear claw pole, the rear bearing, the collector ring and the exciting coil assembly are disposed on the rotating shaft. The front claw pole, the rear claw pole and the exciting coil assembly are press-fitted in a whole through the rotating shaft. The rotor structure is characterized in that a channel forms between each two adjacent claws of the front and rear claw poles, a packaged permanent magnet is fixed in each channel and made with a metal support plate, a permanent magnet member and a bottom shell by injection moulding, each permanent magnet member is disposed between the corresponding metal support plate and the corresponding bottom shell, and the bottom shells are made of plastic or nylon material. The rotor structure is simple to assemble, and damage of the permanent magnet member is prevented; compared to the existing rotor structure, the rotor structure has the advantages that yield of rotor production is increased and generator failure caused by the damage of the permanent magnet members occurs less likely.

The invention discloses a power wheel for driving a motor home or a yacht to move, comprising a hub (1) and a shaft (3), wherein a central chamber (2) is formed in the hub (1); the shaft (3) is rotationally installed on the hub (1); an electric motor is arranged in the central chamber (2) of the hub (1); and the electric motor is connected with the hub (1) via a transmission device. The power wheel for driving a motor home or a yacht to move is reduced in size, light in weight and convenient to steer, and the safety of the electric motor is improved.

The invention provides a front wheel steering mechanism suitable for an unmanned aerial vehicle, belongs to the technical field of unmanned aerial vehicles, and solves the problem of incapability of controlling and measuring the vibration in the prior art. A rotating shaft is fixedly connected with a front plate lifting spring; a bearing block is connected to an installation pedestal and connected with the rotating shaft through a thrust bearing and two rolling bearings, and the rotating shaft and the inner rings of the rolling bearings are compressed by a compression nut and a washer; a tapered pin is installed on the rotating shaft; the outer ring of damping rubber is sleeved in a square hole of a steering support; a steering block is installed in an inner hole of the damping rubber; the steering block and the front plate lifting spring are fixedly connected by steering block fixing bolts; a shaft sleeve is installed on the rotating shaft and positioned on the steering support; a steering rocker arm is installed on the shaft sleeve and connected with the steering support through a compression bolt, a spring and a steel ball; the steel ball is embedded into a tapered hole in the steering support; the spring is positioned on the steel ball and then compressed by the compression bolt; the steering rocker arm is connected with a steering engine rocker arm through a connecting rod to form a four-connecting rod mechanism, to drive the steering support to rotate; the steering engine rocker arm is connected with the output shaft of a steering engine.

The invention discloses a shoe sole air cushion device. The shoe sole air cushion device comprises an air cushion bag which is arranged in a shoe sole, and an elastomer of which the interior forms elastic buffer, an air throttle pipe is combined with a nozzle which is communicated with the inside and the outside and is provided with a valve ball, a suction inlet and a small-diameter outlet, the suction inlet and the small-diameter outlet are formed in the two ends, multiple stop blocks protrude on the inner wall of the suction inlet annularly, the small-diameter outlet is internally provided with a shrinking neck part and multiple lugs which protrude on the shrinking neck part annularly, the valve ball forms small-airflow gaps with the shrinking neck part when the nozzle of the air cushionnag exhausts air to slow down exhaust, forms large-airflow gaps with the inner wall of the suction inlet when the nozzle of the air cushion bag sucks air to quickly suck air for air inflation, and has elastic buffer of the elastomer, the air throttle pipe has the auxiliary buffering effect of slowing down of exhaust and quickly sucking air for air inflation, and the overall buffering effect of the shoe sole is effectively improved.

The invention discloses an ecological ocean trickle slot. The ecological ocean trickle slot comprises a planting frame layer, a water inlet separator, a first filtering frame layer, a droplet collecting convergence guide frame and a support frame which are arranged in sequence. The planting frame layer is provided with inner plates, and a plurality of through holes are distributed in each inner plate. The water inlet separator is arranged below the planting frame layer. The first filtering frame layer is provided with opening parts which are opened and in butt joint with the planting frame layer, inserting parts used for allowing the opening parts to be embedded are arranged at the bottom of the planting frame layer, and a plurality of dripping holes are formed in the bottom of the first filtering frame layer. The droplet collecting convergence guide frame is provided with guide plates, and a strip-shaped opening is formed in one end of each guide plate so that liquid flow can form a water curtain. The support frame is provided with first side plates and second side plates used for supporting the droplet collecting convergence guide frame, and the first side plates and the second side plates are arranged at intervals so that the support frame can be made through up and down. The ecological ocean trickle slot has the advantages of being easy to manufacture, high in rate of finished products, low in process cost, safe and reliable; planting, filtering, oxygenation and sight enjoyment are integrated; the application range is wide, a filter element can be replaced or cleaned conveniently, the water curtain effect is formed, attractiveness and elegance are achieved, and the structure can be assembled conveniently.

The invention discloses a control box quick assembly structure of a lifting table. The invention belongs to the field of electric lifting table accessories. The structure comprises a cross beam and acontrol box, and the cross beam is used for being installed below a table board. A containing groove for containing the control box is formed in the cross beam, a sliding rail groove is formed in oneof the inner wall of the containing groove and the outer side wall of the control box, a positioning protrusion is arranged on the other one of the inner wall of the containing groove and the outer side wall of the control box, the positioning protrusion is clamped in the sliding rail groove in an assembled state, and the positioning protrusion can transversely slide in the sliding rail groove. The invention further discloses a lifting table frame adopting the control box quick assembly structure, and the control box quick assembly structure and the lifting table frame have the advantages thatthe control box is more convenient to assemble, and meanwhile the cost is lower.

An independent auto glass lifter switch comprises a base (3), an ejector pin (4), a dynamic contact piece (6), a shell body (2) and a button (1); the upper end face of the base (3) is provided with static contact pieces (7,7a), and the lower end face is provided with a pin (33) conductively communicated with the static contact pieces (7,7a); the shell body (2) is arranged at the upper end part ofthe base (3); besides, the button is rotatably arranged at the upper end part of the shell body (2) and can drive the ejector pin (4), so that the ejector pin (4) can drive the dynamic contact piece (6) to achieve the connection and disconnection between the dynamic contact piece (6) and the static contact pieces (7,7a). The independent auto glass lifter switch is characterized in that the switchalso comprises a flexible insulator (5) arranged at the upper end face of the base (3) and contained in the shell body (2); the lower end face of the flexible insulator (5) is provided with the dynamic contact piece (6) corresponding to the static contact pieces (7,7a); and the upper end face of the flexible insulator (5) and the ejector pin (4) prop each other. Compared with the prior art, the independent auto glass lifter switch has the advantages that the switch has no spring reset mechanism and is restored, transited and driven through the flexible insulator; besides, the entire structureis compact and smart and is suitable for thinned and miniaturized product design.

A flat brushless vibration motor include a housing, A substrate is fixedly arrange inside that shell, A connection shaft is fixedly arranged on the substrate, A magnet is sleeve on that connecting shaft, A metal rotate sleeve is arranged between that magnet and the connecting shaft, a plurality of magnetic members which attract or repel the magnet and the metal rotating sleeve after the magnet andthe metal rotating sleeve are energized are arranged around the connecting shaft on the substrate, and the magnetic poles of the adjacent magnetic members are opposite, the plurality of magnetic members are positioned between the substrate and the magnet correspondingly, and the vibration effect of the magnetic members is good.

The invention discloses a subway third-rail insulating bracket. The subway third-rail insulating bracket comprises an insulating fastener (1), an insulating carrier frame (2) and a base (3), wherein the insulating bracket (2) comprises a top beam (2.1), a lower supporting plate (2.2) and an inclined arm (2.3); the rear end of the top beam (2.1) and the rear end of the lower supporting plate (2.2) are fixed on the front end surface of the inclined arm (2.3); the insulating fastener (1) is composed of a vertical plate (1.1) and an inclined supporting plate (1.2); the upper end surface of the vertical plate (1.1) is a lower inclined surface (1.3); the front end of the bottom surface of the top beam (2.1) is an upper inclined surface (2.4); the insulating fastener (1) is in threaded connection with the top beam (2.1) through a bolt (4) perpendicular to the upper inclined surface (2.4); and the lower supporting plate (2.2), the inclined arm (2.3), the top beam (2.1) and the insulating fastener (1) form a chamber for accommodating the upper part of a third rail (5). The bracket is good in stability and firmness, and can avoid potential safety hazards.

The invention relates to the technical field of cooling devices, in particular to a rapid cooling device for auto spare parts. The rapid cooling device comprises a bottom plate, a high-pressure tank and a liquid outlet device, wherein an outer box body is arranged above the bottom plate through a support, a heat preservation pipe is arranged inside the outer box body, a heat preservation cavity isformed between the heat preservation pipe and the outer box body, a bearing is arranged in the middle of the bottom end of the outer box body, a motor is installed below the bearing, the upper end ofa rotating shaft of the motor penetrates through the bearing to extend into the interior of the heat preservation pipe, and a rotatable workbench and the like are installed at the upper end of the rotating shaft of the motor. According to the rapid cooling device for the auto spare parts, the structure is convenient to assemble, moreover, the structure is stable, liquid nitrogen or carbon dioxideis conveyed to air jetting heads through the liquid outlet device and is jetted out from the air jetting heads in a gaseous mode, due to the fact that a large amount of heat can be absorbed when a liquid is vaporized, the high-temperature auto spare parts can be quickly cooled through the gas jetted out from the air jetting heads, the motor drives the workbench to rotate, so that the auto spare parts are uniformly cooled, and meanwhile, the cooling efficiency is improved.

The invention discloses a ultrasonic-wave dynamic sealing device and method. The device comprises a sealing body and a sealing cover, wherein the sealing body comprises an acoustical lens, matching layers, an acoustoelectric chip tape and a backing. The acoustical lens is arranged on the periphery of a rotating shaft to be sealed, one or multiple matching layers cling to the outer side of the acoustical lens, and the acoustoelectric chip tape clings to the outer sides of the matching layers. The backing clings to the periphery of the acoustoelectric chip tape, and the outer side of the backingis connected with the sealing cover. The sealing device adopts non-contact seal, so that the wear and consumption of the sealing device is reduced. The sealing device is convenient in structural assembly, has low cost and has good adaptability under extreme working conditions.

The invention provides a construction device for the subcutaneous tunnel. The construction device comprises an inner puncture core, an obtuse expander and a tunnel supporting pipe. The inner puncturecore is used for puncturing the skin to form a puncture point; the obtuse expander movably sleeves the inner puncture core and is used for expanding the subcutaneous tissue along the puncture point toform the subcutaneous tunnel; the tunnel supporting pipe movably sleeves the obtuse expander and is used for supporting the interior of the subcutaneous tunnel to prevent a medical catheter from being bent under compression of the subcutaneous tissue. According to the construction device for the subcutaneous tunnel, by arranging the inner puncture core, the obtuse expander and the tunnel supporting pipe, when the construction device is used for constructing the subcutaneous tunnel, bleeding is reduced, the infection rate of wounds is low, and the medical catheter cannot be bent under compression of the subcutaneous tissue.

The invention discloses an array type ultrasonic dynamic sealing device and method. The device comprises a seal body, a seal cover and a gear shaft sleeve. The gear shaft sleeve is arranged on a sealing rotary shaft in a sleeving manner; the seal box comprises a gland sealing ring; the gland sealing ring is mounted on the periphery of the gear shaft sleeve, and a plurality of seal teeth are formedin a spaced manner on one side, opposite to the rotary shaft, of the gland sealing ring; a T-shaped groove is formed in the inner side of the T-shaped groove of the sealing cover; a T-shaped bump arranged in the side, far away from the rotary shaft, of the gland sealing ring is matched with the T-shaped groove of the sealing cover; independent sealing regions are formed between adjacent seal teeth; and each of the independent sealing regions formed between adjacent seal teeth is successively provided with an acoustic lens, a matching layer, an acoustoelectric wafer band and a backlining fromthe rotary shaft to outer side. Sound waves of the sealing regions are gathered in sealing gaps in the sealing regions. Media in the sealing gaps form relatively strong vortexes, and meanwhile, turbulent flow and choked flow action is generated to the media, and finally, kinetic energy of the media can be fully dissipated, so that the sealing effect of the sealing device is further improved.

The invention relates to the technical field of sockets, in particular to an integrated rotary power taking socket, a wall type extension socket wiring rail and a light rail type extension socket. According to the wall type extension socket wiring rail, an power taking arm based on an integrated rotary power taking socket., the distance between a first limiting frame and a second limiting frame isdesigned to be matched with the width of the power taking arm, the heights of the first limiting frame and the bottom plane are designed to be matched with the heights of the two sides of the power taking arm, and a strip-shaped groove in the middle of the designed bottom plane is matched with a ground wire connecting end of the integrated rotary power taking socket, so the socket is guided to becorrectly inserted at the first moment, rotation is performed then by taking the ground wire connecting end as a circle center, the two sides of the power taking arm are guided to reach the power taking position at the next moment, under the elastic action of the elastic live wire power taking assembly, the elastic zero wire power taking assembly and the elastic ground wire connecting assembly ofthe socket, the live wire power taking end and the zero wire power taking end are firmly connected with the first electric connecting piece and the second electric connecting piece in a face-to-facemode, and good power transmission between the wiring rail and the power taking socket is guaranteed.

The invention relates to a winch brake which comprises a drive seat, an inverse expansion torsion spring, a driven seat, and a brake sleeve. The drive seat and the driven seat are coaxially connected and rotate relative to each other. The inverse expansion torsion spring is connected to a column section of the drive seat and a column section of the driven seat in a sleeved mode. The drive seat, the inverse expansion torsion spring and the driven seat constitute a whole body and are arranged in the brake sleeve. An outer ring of the inverse expansion torsion spring is in friction contact with the inner wall of the brake sleeve in an initial state, and the initial friction force is smaller than the friction force formed by the inverse expansion torsion spring and the inner wall of the brake sleeve at braking time. A flange blocking a corresponding bending foot bending part is arranged on the circumferential face of the column section of the driven seat and on one side where a bending foot groove pushes a corresponding bending foot to enable the inverse expansion torsion spring to expand. The size of the outer diameter formed by the flange relative to the axis of the driven seat is not smaller than the radius of the outer ring of the inverse expansion torsion spring. Through the flange, the inverse expansion torsion spring can still be driven to realize brake when the bending foot of the torsion spring is damaged, so that the stability and the reliability of the winch brake are improved, and traction is prevented from failing. The winch brake is suitable for various winch brake devices or structural improvement of like products.

The invention discloses an auxiliary installation tool for a fingerprint security door. Through simple structural design, a lock can be fixed to a door plate in a lossless mode through cooperation ofa fixing piece, an installation part, a connecting base, a buffer piece and the lock, and thus the purpose of assembling the lock by a single person is achieved. Through all the structures in the auxiliary installation tool, assembling is convenient, the auxiliary installation tool can be used repeatedly and can adapt to all locks in the world, and the assembling difficulty and labor cost of the security door lock can be greatly reduced.

The invention discloses a compression-resistant elastic metal net box core mold, which comprises a box base and a metal net box body. The two sides of the top of the box base are provided with pre-embedded grooves, and the inner sides of the two sets of the pre-embedded grooves are provided with mutual matching. The two sets of reinforcement plates are provided with arc-shaped adhering plates on both sides, the top of the box base is provided with grooves, and the inner side of the grooves is evenly arranged with lower core molds. The two ends of the two sides of the body are provided with side reinforcement beams that are mutually compatible with the arc-shaped cling plate and the reinforcement plate; the invention promotes the mutual cooperation of the lower core mold and the upper core mold through the splicing and combined structure of the box base and the metal mesh box body. The core mold body, and under the bonding and reinforcement of the reinforcing plate, the arc-shaped laminated plate and the side reinforcing beam, the structural strength of the main structure of the cage after the combination is effectively increased, and the concrete injected into the core mold body flows evenly, promoting The coverage and filling density of the concrete is better, and the bearing strength and deformation resistance of the lower and upper mandrels are enhanced.

The invention relates to a winch brake which comprises a drive seat, an inverse expansion torsion spring, a driven seat, and a brake sleeve. The drive seat and the driven seat are coaxially connected and rotate relative to each other. The inverse expansion torsion spring is connected to a column section of the drive seat and a column section of the driven seat in a sleeved mode. The drive seat, the inverse expansion torsion spring and the driven seat constitute a whole body and are arranged in the brake sleeve. An outer ring of the inverse expansion torsion spring is in friction contact with the inner wall of the brake sleeve in an initial state, and the initial friction force is smaller than the friction force formed by the inverse expansion torsion spring and the inner wall of the brake sleeve at braking time. A flange blocking a corresponding bending foot bending part is arranged on the circumferential face of the column section of the driven seat and on one side where a bending foot groove pushes a corresponding bending foot to enable the inverse expansion torsion spring to expand. The size of the outer diameter formed by the flange relative to the axis of the driven seat is not smaller than the radius of the outer ring of the inverse expansion torsion spring. Through the flange, the inverse expansion torsion spring can still be driven to realize brake when the bending foot of the torsion spring is damaged, so that the stability and the reliability of the winch brake are improved, and traction is prevented from failing. The winch brake is suitable for various winch brake devices or structural improvement of like products.

The invention provides a rotary high-temperature air preheater which is characterized by comprising an outer frame, wherein a supporting cylinder, a rotor and a transmission gear are arranged in the outer frame; the rotor is positioned on the supporting cylinder; the transmission gear is positioned on one side of the supporting cylinder; the transmission gear is connected with the rotor; the rotor is provided with an upper cover; and the upper cover is connected with the outer frame through an expansion guide. The invention can be quickly assembled, and can allow a furnace with input of about 1200 DEG C to discharge waste gas; and by using the preheater, the temperature of the output hot air can reach about 1000 DEG C to the maximum, and the temperature of the discharged waste gas is reduced to below 200 DEG C.

The invention provides a button switch with a socket and a control method. The button switch comprises a push rod. One end of the push rod protrudes to form a first push rod connecting part and a second push rod connecting part, and movable contact member springs are embedded respectively. Each movable contact member spring abuts against a movable contact member, and first contacts are arranged ontwo ends of the movable contact member. A base connecting part is formed on a base. The first push rod connecting part and the second push rod connecting part can be installed on the base connectingpart. At least one stop post corresponding to a stop block is formed on the base. A number of insertion holes corresponding to the first contacts are formed in the base. Second contacts are arranged on one end of two first static contact members. Second contacts are corresponding to the first contacts on two ends of the movable contact member in a first mounting part. Third contacts are arranged on one end of two second static contact members, and are corresponding to the first contacts on two ends of the movable contact member in a second mounting part. According to the invention, the structures of 'one normally open contact and one normally closed contact ', 'two normally open contacts' or 'two normally closed contacts' can be freely selected and set, and the use scope is expanded.