282results about How to "Easy to disassemble and repair" patented technology

The invention discloses a hydraulic reversing mechanism. The hydraulic reversing mechanism comprises an upper joint, a center shaft, a guide ring, an upper shell, a guide pin, a connection nipple, a compression spring, a lower shell, a limiting sleeve and a lower joint, wherein the upper joint is connected with the center shaft, the guide ring is arranged between the upper joint and the upper shell, and the upper shell, the connection nipple, the lower shell and the lower joint can be slidably arranged on the outer side of the center shaft. The guide pin is arranged on the upper shell, a guidegroove is formed in the portion, corresponding to the guide pin, of the center shaft, the guide pin can rotate in the guide groove, a compression cavity is defined by the connection nipple, the lowershell, the lower joint and the center shaft, and the compression spring and the limiting sleeve are arranged in the compression cavity. The hydraulic reversing mechanism has the benefits that the hydraulic reversing mechanism can be used for rotational reversing of a sand washing tool, the washing operation is more sufficient, no atomization is generated, and the washing capacity is ensured. According to the hydraulic reversing mechanism, reversing is achieved under the hydraulic action, the structure is simple, and convenience is brought to installation, disassembly and maintenance. The large-discharge-capacity cleaning work can be met, and rotary jetting to the washing tool can be achieved.

A toner cartridge includes: a toner container for containing a toner, the toner container being removably mounted in an image forming apparatus; and a storage section for electronically storing specific information held by the toner container, the storage section being electrically connected to a to-be-connected portion of the image forming apparatus when the toner container is mounted in the image forming apparatus, the storage section comprising: a board assembly including a board on which a storage element for storing the specific information held by the toner container as electronic information is mounted; a housing member for holding the board assembly; and a covering member for detachably integrating the board assembly and the housing member, the storage section being attachable to and removable from the toner container.

The invention discloses an automatic ultrasonic flaw detector and aims at overcoming the problem that the existing device probe is incapable of moving automatically so that three-dimensional and automatic flaw detection is difficult to realize. A first longitudinal guide rail and a second longitudinal guide rail of the guide rail part of the automatic ultrasonic flaw detector are fixed in parallel at the two sides of the bottom panel of a guide rail shell in the longitudinal direction; the two ends of a transverse guide rail are fixedly on the sliders of the first longitudinal guide rail and the second longitudinal guide rail, respectively, and the transverse guide rail is perpendicular to the direction of the first longitudinal guide rail; the probe part of the automatic ultrasonic flaw detector is fixed on the slider of the transverse guide rail and electrically connected with a data transmitting/receiving circuit part; the transverse front slide rail and the transverse rear slide rail of a fixture part are mounted in parallel on the guide rail shell, a longitudinal left slide rail and a longitudinal right slide rail are mounted in parallel on the transverse front slide rail and the transverse rear slide rail, a first clamp and a second clamp are mounted on the longitudinal left slide rail, a third clamp and a fourth clamp are mounted on the longitudinal right slide rail; the data transmitting/receiving circuit part is electrically connected with a data processing part.

The invention relates to a pipe casting centrifuge machine by a thermodyn process, which comprises an equivalently casting device, a centrifugal host, a pushing pipe device, a pipe supporting device and a pipe connecting device. The frame of the equivalently casting device is fixed with a ladle fixing frame and a pouring ladle with a long pouring channel, and the ladle fixing frame is fixed with a same-speed board; the support wheel groups of centrifugal host are driven by a motor and support pipe die; the supporting frame of the pushing pipe device fixes a pushing rod through a guide rail, and the pushing rod is driven by a motor through pin teeth transmission for the pipe rough breaking away from the pipe die and cleaning inner wall of the pipe die and coating the inner wall of the pipe die; the pipe supporting device ensures the separation of the steel pipe from the pipe die; the pipe connecting device is used for connecting the pipe rough separated from the pipe pushing device. The pipe casting centrifuge machine of the invention can obtain the hollow steel pipe with good structure, precise size and high output rate of material and realizes whole machine automatic production.

The invention belongs to the technical field of construction of exterior walls of structure buildings, and relates to a structure-integrated heat-insulation and decorating exterior formwork and an exterior wall constructing method thereof. The structure-integrated heat-insulation and decorating exterior formwork comprises a heat-insulation structure layer, a decorating structure layer and lateral connecting plates, wherein the inner side surface of the heat-insulation structure layer is used as an outer side formwork surface during pouring of a concrete structure; at least one anchoring groove and/or at least one anchoring hole are formed in the inner side surface of the heat-insulation structure layer corresponding to the concrete structure; the decorating structure layer is arranged on the outer side of the heat-insulation structure layer; and the lateral connecting plates are connected to the peripheral side surfaces of the heat-insulation structure layer and the decorating structure layer. The structure-integrated heat-insulation and decorating exterior formwork can become an exterior formwork having an integrated structure; after pouring of the concrete structure is finished, forms do not need to be disassembled, and the construction efficiency and convenience of construction are greatly improved; and moreover, the anchoring grooves or/and anchoring holes are formed in the structure heat-insulation layer, and therefore, the structure heat-insulation layer, the decorating structure layer and the concrete structure are integrated.

The invention discloses a pure electric vehicle drive motor. The motor comprises a mounting seat, a mounting slot is formed in a top side of the mounting seat, a motor body is mounted in the mountingslot, an output shaft is arranged on one side of the motor body, first trapezoidal blocks are fixedly mounted on inner walls of two sides of the mounting slots, grooves are formed in both sides of themotor body, sliding blocks are slidably mounted in the grooves, second trapezoidal blocks are fixedly mounted on sides, away from each other, of the sliding blocks, the first trapezoidal blocks are adapted to the second trapezoidal blocks, one ends, away from the sliding blocks, of the second trapezoidal blocks extend out of the grooves and are in contact with the first trapezoidal blocks, firstlimiting slots are formed in the top side inner walls and the bottom side inner walls of the grooves, and first limiting blocks are fixedly mounted on the top side and the bottom side of the sliding blocks. According to the motor, the motor body is convenient to install, disassemble and maintain, the function of buffer protection for the motor body is achieved, and the motor has the advantages ofsimple structure and convenient operation.

The invention provides a roller coaster wheel train device with buffer and eccentric adjustment functions. The roller coaster wheel train device is composed of a bearing wheel, a bearing wheel axle, a bearing wheel rack, a hanging wheel rack rotating shaft, a side guide wheel, a side guide wheel axle, a side guide wheel rack rotating shaft, a hanging wheel axle and a hanging wheel, and is characterized by further comprising a side guide wheel buffer device, a hanging wheel buffer device, a hanging wheel rack, a side guide wheel axle eccentric bushing, a side guide wheel rack, a rubber pad, a rubber pad metal plate and a spring which are connected with one another, wherein the side guide wheel buffer device is composed of the rubber pad, a rubber pad metal plate and the spring; the side guide wheel is connected with the side guide wheel axle eccentric bushing through the side guide wheel axle; the side guide wheel axle eccentric bushing is fixed on the side guide wheel rack through a screw; and the side guide wheel buffer device is fixed on the bearing wheel rack through a stud. The roller coaster wheel train device disclosed by the invention has the advantages of being reliable in operation, small in impact, capable of reducing the discomfort of passengers, simple in structure, eccentrically adjustable and convenient to detach and maintain.

The invention relates to a fresh air ventilator and belongs to the field of vented exhaust equipment. The fresh air ventilator comprises an enclosure and a partition plate support in the enclosure; space in the enclosure is divided into a fresh air inlet passage, a fresh air outlet passage, an exhaust air inlet passage and an exhaust air outlet passage through the partition plate support; a filter, a high-voltage static box and an ozone filter are arranged in sequence along an air inlet direction in the fresh air inlet passage; a fresh air fan is arranged in the fresh air outlet passage; an exhaust air fan is arranged in the exhaust air outlet passage; a plate heat exchanger is arranged at the hubs of the fresh air inlet passage, the fresh air outlet passage, the exhaust air inlet passage and the exhaust air outlet passage, and is fixedly arranged on the partition plate support through mounting buckles. The fresh air ventilator disclosed by the invention has the advantages that substances, such as impurities, dust and ozone, in air can be effectively filtered out to ensure the freshness of the air; the energy is saved, and the environment is protected; the heat exchanger is convenient to install and maintain.

The invention provides a spliced distribution cabinet with dumping resistance in vibration, including a base cabinet, an expansion cabinet, a dust cover, a foundation, reinforced columns, plug-in holes, a water tank, and a water cavity. Receiving grooves are arranged on both sides of the upper ends of the base cabinet and the expansion cabinet, a receiving block is clamped inside the receiving groove. A movable plate is rotatably connected with the inner upper ends of the base cabinet and the expansion cabinet. At the bottom of the base cabinet, the water cavity is arranged, the water tank isfixedly arranged inside the water cavity, the bottom surface of the water tank is fixedly connected with a hollow column, the bottom of the hollow column is fixedly connected with a water absorbing block, the upper part of the water absorbing block is fixedly connected with a sliding block, the left and right sides of the sliding block are fixedly connected with metal hoses, the other end of the metal hose is fixedly connected with a cylindrical wedge, and the other end of the cylindrical wedge is inserted with a reinforcing column. Through the matching arrangement of the reinforcing column and the insertion hole, the reinforcing column can be automatically inserted with the insertion hole on the foundation when the power distribution cabinet meets strong vibration, and the power distribution cabinet can be rapidly reinforced on the foundation to avoid dumping.

The invention relates to a full-automatic stacking machine. The full-automatic stacking machine comprises a stacking machine body (1), moving components (3), a lifting device (4) and a clamping device (2), wherein the moving components (3) are arranged at the lower part of the stacking machine body (1), and the clamping device (2) is arranged under the lifting device (4). Compared with the prior art, the full-automatic stacking machine disclosed by the invention has the following beneficial effects that (1) the structural design of a whole device is ingenious, and the disassembling and the maintenance are convenient; (2) through the technical scheme, full-automatic stacking operation is realized, the production efficiency is greatly increased, the product quality is ensured, and the labor conditions are improved; (3) through the technical scheme, devices are sequentially arranged according to a processing procedure order of a workpiece, the devices are connected into a whole by using an automatic conveyor, motions of all parts are combined together by using a PLC (Programmable Logic Controller) control system, and thus the devices can coordinately work according to specified motions; through the push-out of a full-automatic processing assembly line and a stacking warehouse, the needs of an enterprise on manpower labor can be relieved, and the expenditure of manpower labor cost is reduced.

The invention discloses a full-automatic back washing filter. A filter medium inlet is arranged at the lower part of a shell, and a filter medium outlet is arranged at the upper part of the shell; a drain outlet is arranged at the bottom of the shell; multiple groups of filter cores are arranged in the shell; an electric rotary valve is arranged in the shell; a back washing outlet channel communicated with a filter core is arranged at the lower part of the electric rotary valve, a back washing inlet channel is arranged at the upper part of the electric rotary valve, and the back washing inlet channel is communicated with the same filter core communicated with the back washing outlet channel; and the valve core of the electric rotary valve is arranged in a valve body communicated with an air storage chamber in which compressed air is stored. The full-automatic back washing filter of the invention has reasonable structure, realizes full-automatic operation, realizes unmanned supervision of marine engine rooms, has sufficient filter capacity, can continuously work, can automatically clean and filter impurities, can ensure stable system pressure and can be conveniently disassembled and maintained; and the filter core has high strength and long service life.

The invention relates to a dryer, which comprises a dryer housing, an air heating room, an air supply room, a drying channel, an air inlet which is communicated with the air heating room, an air outlet which is communicated with the front end of the drying channel, a material inlet which is formed in the front end of the drying channel, and a material outlet which is formed in the rear end of the drying channel, wherein a heat source heat exchanger is arranged in the air heating room; and a direct-blowing type air supply device is arranged in the air supply room. The dryer also comprises an air regulation guide plate, an exhaust waste heat recycling device, an intelligent fresh air humidity regulation device and a hot air compensation device. The dryer has the beneficial effects that the dryer can be used for drying laver and other products; constant-temperature and stable air supply can be realized; the air supply device is convenient to dismount, maintain and clean; the exhaust waste heat recycling function and partial exhaust recycling function are realized; thermal discharge is reduced and a product is energy-saving so that the production cost is reduced; and the hot air compensation device is capable of improving the drying efficiency of the dryer and shortening the drying time.

The invention belongs to the technical field of the civil engineering energy dissipation and seismic mitigation, and discloses a self-resetting support structure. The self-resetting support structurecomprises an energy dissipation component and an elastic resetting component. The energy dissipation component comprises an anti-buckling support. The elastic resetting component comprises a first pushing-pulling rod, a second pushing-pulling rod, an elastic component, a first outer anchoring plate, a second outer anchoring plate, an inner sleeve and an outer sleeve. The beneficial effect is as follows: 1, the elastic component is parallelly connected with the anti-buckling support, so an axial force of the whole self-resetting support structure is the sum of a reset force of the elastic component and an axial force of the anti-buckling support, the self-resetting support structure is stable in mechanical property, and strong in deformability; and 2, the elastic component is connected withtwo outer anchoring plates, a prestressing force is adjustable through adjusting initial deformation of the elastic component, disadvantage phenomena, such as later loosening of the self-resetting support structure, can be solved, and later detaching and repairing are more convenient.

The invention provides a ground-adaptive differential-drive floating wheel system which comprises a front wheel set and a rear wheel set. The front wheel set comprises a front fork-shaped support, a horizontal floating rod is connected in the front fork-shaped frame through a pivot shaft, and universal wheels are respectively mounted under two ends of the horizontal floating rod; the rear wheel set is formed by two sets of longitudinal floating wheels perpendicular to the horizontal floating rod, each longitudinal floating wheel comprises a rear fork-shaped support and longitudinal floating rods arranged in the rear fork-shaped support, driving wheels are mounted at front ends of the longitudinal floating rods, universal wheels are mounted at rear ends of the longitudinal floating rods, inner sides of the longitudinal floating wheels are opposite, and the longitudinal floating wheels are connected in a manner that a horizontal shaft penetrates the rear fork-shaped supports and the longitudinal floating rods, the inner side of each longitudinal floating rod is provided with a drive motor, and the drive motors are connected with the driving wheels in a driving manner. The ground-adaptive differential-drive floating wheel system has the advantages of being simple and easy to use, convenient in disassembly and the like; the ground-adaptive differential-drive floating wheel system is simple in structure, low in cost, applicable to automatic guided vehicles of various operation conditions, not high in requirement of flatness of the ground and the like.

The invention discloses a hydraulic drive reciprocating duplex pump. The hydraulic drive reciprocating duplex pump comprises a duplex pump head installed on a rack. Cylinders of the duplex pump head are driven by a first piston rod and a second piston rod to make suction and discharging motion respectively. The duplex pump further comprises gears, a reversing device, an oil pump, an oil tank, a first single-piston-type double-outlet-rod hydraulic cylinder and a second single-piston-type double-outlet-rod hydraulic cylinder, wherein the first single-piston-type double-outlet-rod hydraulic cylinder and the second single-piston-type double-outlet-rod hydraulic cylinder are arranged on the rack in parallel. The reversing device comprises a two-position six-way reversing valve and a transmission lever, one ends of the piston rods of both the hydraulic cylinders are linearly connected with the corresponding piston rods of the duplex pump head respectively to push the piston rods to make reciprocating motion in the pump cylinders, corresponding tooth patterns are formed in the opposite faces of the other ends of the piston rods of the hydraulic cylinders, and the gears are arranged between the piston rods of the hydraulic cylinders at the end and meshed with the tooth patterns on all the sides to drive the piston rods to move reversely. The hydraulic drive reciprocating duplex pump is small in overall size and convenient to detach and maintain, force does not need to be decomposed or worn down, the overall stroke is performed at a more constant speed, stepless speed regulation can be carried out without shutdown, the synchronous co-movement is strong, and the suction and the discharging are more stable.

The invention discloses an automatic leveling telescoping boom engineering vehicle with a fork head. The automatic leveling telescoping boom engineering vehicle comprises a boom assembly, a bracket, a hoisting hydraulic cylinder, a leveling device, a slewing mechanism, a hydraulic winch, a frame and an auxiliary frame, wherein the end part of the boom assembly is hinged to a fork head assembly; the fork head assembly comprises a fork, a fork head connecting frame, a rotating frame, a longitudinal hydraulic cylinder and a transverse hydraulic cylinder; the fork is arranged in a guide groove of the fork head connecting frame; the lower end of the fork head connecting frame is hinged to the rotating frame; the rotating frame is hinged to the head end of the boom assembly; one end of the longitudinal hydraulic cylinder is hinged to the rotating frame, and the other end of the longitudinal hydraulic cylinder is hinged to the boom assembly; one end of the transverse hydraulic cylinder is hinged to the rotating fame, and the other end of the transverse hydraulic cylinder is hinged to the fork head connecting frame. The automatic leveling telescoping boom engineering vehicle can work in a small hoisting space, thus improving the assembling and disassembling flexibility and efficiency, increasing the activity space of hoisting goods and improving the safety of hoisting; manual auxiliary work load is low.

The invention discloses a feeding device for a carton custom-made machine. Material rack, each clamping rack is adjusted by the lifting of two lifting slides, so that the driver will load the clamping rack holding the cardboard to the processing station along the horizontal direction, and the cutting and creasing device on the processing station will cut , the feeding device of this structure can realize fast switching of cardboards of various sizes, realizes accurate and fast automatic cardboard feeding, saves manual feeding, greatly reduces labor intensity, and is safe and efficient, reducing the time for changing cardboards , improve production efficiency, the cutting and creasing device facilitates the integration of carton cutting and creasing processes, and simplifies the structure of the carton custom machine.

The invention discloses a waterproof, deodorant and a leak-proof integrated toilet which comprises a wallboard, keels and a bottom plate, wherein the keels comprise keel limiting holes pre-formed in the bottom plate, vertical keels and upper keels; during bottom plate production, a clean water draining device and a sewage draining device which are deodorant are pre-arranged; the wallboard comprises at least one wallboard body which is arranged on a pre-arranged keel, all the wallboards are transversely and longitudinally spliced to form the wallboard; a sunny opening and a shaded opening are simultaneously formed in symmetrical side surfaces of each wallboard body, another sunny opening is formed in one surface of the other symmetrical side surface of each wallboard body and another shaded opening is formed in the other surface of the symmetrical side surface of each wallboard body. The waterproof, deodorant and leak-proof integrated toilet has waterproof and deodorant functions, and can avoid a water leakage problem due to glue failure after many years as a bottom plate and a floor drain of an old integrated toilet are bonded through glass cement, and a pedestal pan and the bottom plate are in sealed connection through glue, and the integrated toilet is relatively easy to dismount and maintain, so that the ceiling and the interior decoration of a lower-layer house are prevented from being damaged, a draining branch tube is prefabricated to greatly remove site construction processes and reduce construction difficulty.

The invention relates to a switch cabinet easy to disassemble and maintain. The switch cabinet comprises a switch cabinet body, a moving partition and side doors, the switch cabinet body is provided with sliding chutes, T-shaped grooves are arranged in the right side of the moving partition and the right side of the switch cabinet body, cross plates are placed in the T-shaped groove, each of the upper end of the moving partition and the lower end of the moving partition is provided with a guide wheel, the guide wheels are mounted in the sliding chutes, cross bars are arranged on the side doors, and hanging hooks are mounted on the cross bars. Arrangement of the size of the internal space of the switch cabinet can be favorably changed by operators as required by the arrangement of the moving partition and the cross plates, extra wires can be favorably hung or coiled on the hanging hooks by the operators by the arrangement of the hanging hooks, arrangement of electrical items in the switch cabinet is clear, disassembly and maintenance are facilitated for the operators, the switch cabinet is simple in structure, convenient to operate and economic and practical.

The invention discloses a rapid air-tightness precision testing device and testing method for air tightness detection of an automobile-shifting power-assisting cylinder shell. The test device comprises a first sealing mechanism which includes a sealing seat and a fixing device, which can apply pressure to the workpiece on the sealing seat so as to be fixed on the sealing seat and seal the openingof the first direction; a second sealing mechanism arranged on one side of the first sealing mechanism, which can seal opening of the second direction of the workpiece on the sealing seat; a gas-tighttest mechanism which can inflate the inner cavity of the workpiece and conduct the air-tightness test. The invention meets the limit fixing requirement of the workpiece and the sealing requirement ofdifferent openings through two sealing mechanisms to make the inner cavity of the workpiece form an effective sealing space, so that the air-tightness detection can be carried out by the inflating and the gas-tight detector. The structure is simple, the detection operation is easy, matching with the static seal which is easy to realize, the reliability and the effectiveness of the seal are effectively ensured, and the accuracy of the test results can be ensured.

The invention belongs to sewage treatment in environmental protection engineering, and in particular, relates to an ozone microbubble catalytic oxidation device and an application thereof. The ozone micro-bubble catalytic oxidation device comprises a tower body, an ozone generator and a catalytic unit. The tower body is equipped with water inlets and water outlets. The water inlets include an upper water inlet arranged at the upper part of the side wall of the tower body and a lower water inlet arranged at the lower part of the side wall of the tower body, the water outlets include an upper water outlet arranged at the upper part of the side wall of the tower body and a lower water outlet arranged at the lower part of the side wall of the tower body. The ozone generator conveys a gas-liquid mixture to a microbubble generator through a gas-liquid mixing pump, and the output end of the microbubble generator is connected with an inlet of a circulating pipeline of the microbubble generatorbelow the tower body; the catalytic unit adopts at least two layers of catalyst boxes in longitudinal interval and horizontal arrangement, the catalyst boxes are arranged in the tower body through brackets, and an outlet, arranged on the side wall of the tower body above the catalytic unit, of the circulating pipeline of the microbubble generator is connected with the gas-liquid mixing pump. Thetechnical problem of low ozone utilization rate of the prior art is effectively solved, and the ozone microbubble catalytic oxidation device has the advantages of compact structure, high ozone utilization rate and the like.

The invention provides a heat dissipation structure of a module spot lamp. The heat dissipation structure includes lamp modules, shell assemblies and a pressing cover, the shell assemblies are a plurality of detachable shells, the shell assemblies are arranged as the multiple detachable shells, meanwhile, the lamp modules are detachably mounted in the shell assemblies, the pressing cover is used for packaging, thus the module spot lamp can be conveniently disassembled and maintained, meanwhile, the purpose of good heat dissipation can further be achieved, the shell assemblies are all set as copper materials, and heat energy generated by the lamp modules is further improved; and the lamp modules and the shell assemblies are separately produced and manufactured, the maintenance cost is greatly saved, quick maintenance after the fault of the lamp modules is convenient, and meanwhile, the purpose of no needing to replace the entire lamp is achieved. The shell assemblies are arranged as themultiple detachable shells, the maintenance efficiency of the shell assemblies is greatly improved, and better heat dissipation is further realized.

The invention discloses a conical locking type strain clamp convenient for maintenance, and aims to provide a conical locking type strain clamp which is not only convenient to assemble, disassemble and maintain, but also stable in strain clamp structure and capable of effectively solving a problem that the service life of the strain clamp is influenced and the power supply reliability is reduced due to looseness between an upper drainage member and a jumper drainage member. The conical locking type strain clamp comprises a clamp body and a drainage body, wherein the clamp body is connected with a wire. The drainage body comprises an upper drainage rod, a jumper drainage rod and a locking connecting nut, and is characterized in that the upper part of the upper drainage rod is connected withthe clamp body, and the lower end face of the upper drainage rod is provided with a conical insertion hole; the upper part of the jumper drainage rod is provided with a conical insertion rod matchedwith the conical insertion hole, and the conical insertion rod is inserted in the conical insertion hole; and the locking connecting nut is arranged on the jumper drainage rod in a sleeved manner. Thelower end of the upper drainage rod extends into the locking connecting nut, and the locking connecting nut is connected with the upper drainage rod through a thread.

The invention discloses a hand charger. The hand charger comprises a handle, a left case, a right case, a top case, a motor and a circuit board. A handle containing portion is reserved on one case, and the handle is arranged at the handle containing portion in a foldable mode. The case is provided with a solar panel fixing device. According to the hand charger, due to the fact that the case is provided with the solar panel fixing device, disassembly and maintenance of the hand charger are convenient.

The invention discloses a protection door with a nuclear radiation protection function and used for civil air defense engineering. The protection door comprises a protection door main body mounted ina wall body, and the wall body is provided with a mounting chamber; the protection door main body is slidably mounted in the mounting chamber, and a mounting groove is formed in the inner wall of oneside of the mounting chamber; a driving motor is fixedly mounted on the inner wall of the side, away from a groove opening of the mounting groove, of the mounting groove, and a connecting shaft is welded to an output shaft of the driving motor; the end, away from the driving motor, of the connecting shaft extends into the mounting chamber, and a lead screw is welded to the end, away from the driving motor, of the connecting shaft; and a storing chamber is formed in the protection door main body, and the end, away from the connecting shaft, of the lead screw penetrates to the interior of the storing chamber. The protection door with the nuclear radiation protection function and used for civil air defense engineering is convenient to use, the protection door main body can be easily opened through the driving motor, the protection door main body can be conveniently fixed through a double-shaft telescopic motor, by pulling a second magnet, the double-shaft telescopic motor can be conveniently disassembled and maintained, and operation is easy.

The invention discloses a spring type self-resetting beam column joint. The spring type self-resetting beam column joint comprises a steel frame column, a cantilever short beam, a connecting beam, an energy consumption damper, a connecting device and a restoring device. One end of the cantilever short beam is welded with the steel frame column, and the other end of the cantilever short beam is connected with the connecting beam through a connecting device; transverse stiffening rib plates and longitudinal stiffening rib plates are arranged on webs of the cantilever short beam and webs of the connecting beam, recovery devices are arranged between the transverse stiffening rib plates and the cantilever short beam, and energy dissipation dampers, the transverse stiffening rib plates, the longitudinal stiffening rib plates and the recovery devices are arranged on the front side and the rear side of the cantilever short beam and the front side and the rear side of the connecting beam. The energy dissipation dampers comprise upper connecting plates, lower connecting plates and mild steel energy dissipation steel sheets, via holes are formed in the inner sides of the upper connecting plates, a plurality of grooves are formed in the lower surfaces of the upper connecting plates and the upper surface of a transverse plate of the lower connecting plate, and the multiple mild steel energy dissipation steel sheets are inserted into the grooves. The steel structure is high in energy dissipation performance and self-resetting capacity, and connecting parts are convenient to disassemble and repair.

The invention discloses a die casting LED garden lamp in the illumination technology field. The LED garden lamp comprises a combined lamp stand capable of freely detaching and assembling and which is made of die cast stainless steel by one-time die cast molding, a mounting assembly which is convenient for the fixing and installing of the combined lam stand, a light fixture which is installed on the combined lamp stand; the LED garden lamp also comprises a solar cell panel which is installed on the light fixture and is used for electricity self-generating; the LED garden lamp also comprises a storage battery which is installed inside the combined lamp stand; the LED garden lamp comprises an intelligent controller which is installed inside the combined lamp stand and is bidirectionally connected with the input and output of the storage battery; the LED garden lamp comprises a photosensitive sensor which is installed on the light fixture, used for sensing environment light and is electrically connected with the intelligent controller; the solar cell panel is electrically connected with the intelligent controller; the solar cell panel converts the absorbed light energy into electric energy and stores the electric energy in the storage battery through the intelligent controller. The LED garden lamp is multifunctional and beautiful; the lamp stand is made of die cast stainless steel by one-time die cast molding, which can be freely assembled, is light and convenient for transportation and has good practicality.

The invention relates to a modified acrylate high temperature-resistant anaerobic adhesive and a preparation method thereof. The modified acrylate high temperature-resistant anaerobic adhesive solves the problem that after heating curing, the existing anaerobic adhesive with heat-resistant resin such as bismaleimide has increased strength and is dismounted difficultly. The modified acrylate high temperature-resistant anaerobic adhesive is prepared from an anaerobic acrylate monomer, a stabilizing agent, a heat-resistant resin, a promoter, a promoter assistant, a titanium-silicon-modified resin and an initiator according to a certain weight part ratio. The preparation method comprises the following steps of adding the stabilizing agent into the anaerobic acrylate monomer, orderly adding the promoter and the promoter assistant into the mixture, carrying out stirring dissolution, adding the heat-resistant resin and the titanium-silicon-modified resin into the solution, adding the initiator into the mixed solution, and carrying out stirring to obtain the uniform high temperature-resistant anaerobic adhesive. The modified acrylate high temperature-resistant anaerobic adhesive is used in anaerobic curing adhesive connection fields such as bolt loosening resistance, fixation of interlocked shafts, sealing of a screwed pipe joint and a screwed plug, and sealing of a flange closing surface.

The invention relates to a press key structure comprising an upper cover, a press key, a circuit board and a supporting shoe, wherein the upper cover is provided with a press key opening; one end of the press key is penetrated in the press key opening and the other end is near the circuit board; the circuit board is arranged between the press key and the supporting shoe; the press key comprises a pressing part and at least one cantilever part connected with the lateral of the pressing part; and the cantilever part is suspended between the circuit board and the upper cover above the supporting shoe by at least one supporting pole. In the press key structure, the press key is fixed between the upper cover and the circuit board by adopting the supporting pole, which replaces the traditional mode of hot pressing or dispensing fixing, thereby enhancing the fixing strength of the press key structure, enabling the installation process to be simple and meanwhile facilitating the dismounting repair of the press key structure.

The invention provides an explosion prevention and noise elimination integrated intelligent speed regulating local fan. The explosion prevention and noise elimination integrated intelligent speed regulating local fan comprises a fan shell of a barrel-shaped structure, a drainage apparatus is arranged at one end of the fan shell, and a current collector is arranged on the inner side of the drainage apparatus; a fan linear temperature speed regulating device is arranged at the other end of the fan shell; and a first-stage explosion prevention motor and a second-stage explosion prevention motor are further arranged in the fan shell, the axial directions of the first-stage explosion prevention motor and the second-stage explosion prevention motor are parallel to the length direction of the fan shell, a rotating shaft of the first -stage explosion prevention motor right faces a rotating shaft of the second-stage explosion prevention motor, and the rotating shafts of the first-stage explosion prevention motor and the second-stage explosion prevention motor are each provided with an impeller. Defects of an existing local fan are overcome. The explosion prevention and noise elimination integrated intelligent speed regulating local fan belongs to the technical field of ventilating devices.