89results about How to "Easy to disassemble and maintain" patented technology

The invention relates to a scratching and corrosive wear test device, in particular to a high-temperature high-pressure in-situ scratching and corrosive wear test device. The device solves the problems that in-situ single-time scratching, reciprocating multiple-time corrosive wear and the like are difficult to realize under the high-temperature and high-pressure environment in the prior art. The device is provided with a frequency converter, a motor, a high-pressure kettle, a control cabinet, a double-upright-post fixed bracket, a moving shaft, a scratching head and the like, can perform in-situ single-time scratching, reciprocating multiple-time corrosive wear research on the surface of a test sample at high temperature and high pressure, and can detect a signal, which represents the process of a test sample surface membrane changed from damage to passivation in the scratching or corrosive wear process, by cooperating a high-temperature high-pressure reference electrode and a high-temperature high-pressure working auxiliary electrode which are arranged on the high-pressure kettle, with an electrochemical working station.

The invention discloses a power battery pack comprising a battery cell tray and an insulating board. The power battery pack is provided with clamping buckles, buckling slots, fixed holes, heat radiating ducts, locating pins and the like, wherein the battery cell tray is provided with an aluminum soldering block and a copper soldering block, the fixed holes are used for better clamping modules, the battery cell locating pins are used for locating battery cores, and the ducts are used for radiating heat; the insulating board is provided with the clamping buckles which are respectively and correspondingly buckled in the buckling slots of the battery cell trays, the insulating board is embedded with four anti-rotation nuts connected with the fixed holes of the battery cell trays, the positive pole and the negative pole of the insulating board are marked, the battery cell trays are tightly matched with the clamping buckles of the insulating board, and the insulating board is fixed on electrical equipment or an electric automobile and the modules are clamped tightly through bolts, thus, a plurality of battery cells with flexible packages can be stably and fixedly connected, and the power battery pack has the advantages of stability in connection, good heat radiating property, space conservation, convenience for battery cell locating, assembling, dismounting and maintaining, small internal resistance for contact, realization of inside wiring, no edge folding of the battery cells, large shape size tolerance range of the battery cores and the like.

The invention discloses a rubber sealed ring and the manufacturing method; it belongs to rubber product field. It crushes the natural rubber and adds in butyl rubber and presses, then adds in fillers which are made up of light calcium, porcelain clay, silicon minim powder; the accelerant of zinc oxygen powder, stearic acid; softening agent of a-benzene phthalein acid and oxalic acid; aging-resistant agent; vulcanizer; coloring agent in order, through repeatedly pressing, carries into squeezer to squeeze and fix, then fixes it through vulcanizing craft, then gets the rubber sealed ring which has absorbing swell and shrinking back performance.

The invention relates to a poured pile sediment detector, which comprises a lifting rope, a hanger, a counterweight rod, a protection plate, a probe, a guide plate, a spring leaf and a one-way slab; the counterweight rod is a cylindrical weight with the hanger disposed on the upper part; the lifting rope is tied on the hanger; the protection plate is disposed on the lower end of the counterweight rod;. the probe is disposed under the protection plate; the bottom end of probe is a inverted cone; the bottom diameter of the cone is larger than the diameter of the probe; the one-way slab is disposed upon the cone structure; the guide plate is fixed on the one-way slab; the spring leaf is fixed on the connection point of the one-way slab and the guide plate; the one-way slab, the spring leaf and the guide plate each has a circular hole formed thereon, the probe is disposed with the one-way slab, the spring leaf and the guide plate on outside; and a certain included angle is kept between the spring leaf and the one-way slab. the body achieves the advantages of simple structure, easy dismounting and maintaining, convenient using and good practicability.

The invention discloses a conveying and sorting device and a conveying, sorting and stacking system and relates to the technical field of conveying and sorting. The conveying and sorting device comprises a frame, transmission assemblies and a controller. The transmission assemblies are arranged on the frame. Each transmission assembly comprises a support panel and a plurality of Mecanum wheels arranged on the support panel. The wheel surfaces of the Mecanum wheels protrude from the panel surfaces of the support panels. Axes of the Mecanum wheels are correspondingly connected with a plurality of motors. The motors are electrically connected with the controller. The support panels are matched with each other to form a conveying array. By the adoption of the conveying and sorting device and the conveying, sorting and stacking system, the stability of sorting and conveying can be improved, assembly and maintenance are easy, and meanwhile the sorting and conveying efficiency is improved.

The invention relates to a multistage aeration biofilter for water quality purification. The multistage aeration biofilter comprises a preliminary filter set, a filter tank body and a membrane bioreactor which are sequentially connected in series through water pipes, wherein the filter tank body comprises a plurality of reaction regions which are sequentially connected in series; the primary reaction region adopts an upflow mode by which water flows in from the lower end and flows out from the upper end; the secondary reaction region adopts a downflow mode by which water flows in from the upper end and flows out from the lower end; all the reaction regions alternately adopt the upflow mode and downflow mode; and each reaction region is an anoxic region or aerobic region, the primary reaction region is an anoxic region, and the final reaction region is an aerobic region. The invention also relates to a purification technique of the multistage aeration biofilter for water quality purification. The multistage aeration biofilter for water quality purification has reasonable and compact structural design. The purification technique has the advantages of simple process and favorable purification effect, and is efficient, convenient, green and environment-friendly.

The invention relates to a lung-dispersing air purifier and relates to an air purifying device. Smoke suppression, sterilization, disinfection, formaldehyde removal, dust and peculiar smell removal and the like are performed through high concentration anions and an ultraviolet lamp to purify air thoroughly. The lung-dispersing air purifier comprises a shell and an air purifying device arranged in the shell. A touch display screen which controls the air purifying device is arranged on the surface of the shell. The air purifying device comprises a control circuit board, an anion generator controlled by the control circuit board, an ozone generator, an ultraviolet sterilizing lamp and a fan. The touch display screen is electrically connected to the control circuit board. The lung-dispersing air purifier provided by the invention is characterized in that the shell is of a vertical duck egg shape, the big head faces downward, a base is arranged in the bottom of the big head, an air outlet is formed in the top of the shell, an air inlet is formed in the edge of the base, and the fan is arranged in an air flow channel between the air inlet and the air outlet for diffusing ozone generated by the ozone generator and anions generated by the anion generator to an external space of the shell from the air outlet.

The invention discloses a rectifying unit structure. The rectifying unit structure comprises a frame, a rectifying bridge unit and a water cooling pipeline system, wherein the frame comprises upper and lower base plates and side plates on the two sides; the rectifying bridge unit is in a press string form, and comprises a top peg, a guide sleeve, a disc spring, a gasket, an insulating disc, a water-cooled radiator, a diode, a top column, a bus bar and a discharge resistor; the water cooling pipeline system comprises a quick joint, a water inlet and outlet passage, a pipeline, a pipe joint and a sealing member. The rectifying unit structure has the advantages that the power device, the radiating device, the bus bar and the like are arranged in the frame by the unit through a press string mechanism, the structure is more compact and attractive, the disassembly, assembly and maintenance are facilitated, the conductive contact is more uniform, and the electric performance is good; the radiating mode is water-cooled radiating, the radiating capacity is high, and the high-power radiating requirement can be met; the water cooling pipeline system is arranged on the outer side of the unit, is good in sealing, convenient to disassemble and assemble and an interface can be quickly plugged and pulled; the bus bar is skilful and rational in design, and the insulation protection is safe and reliable.

The invention provides a plate filter and an air conditioner comprising the plate filter. The plate filter comprises an upper mounting part, a lower mounting part and a filter screen plate assembly, wherein a mounting space is formed between the upper mounting part and the lower mounting part; the filter screen plate assembly is mounted in the mounting space and can slide in the length direction of the mounting space; the filter screen plate assembly comprises a plurality of filter screen plates connected in sequence, and every two adjacent filter screen plates are arranged detachably. The demounting and mounting process of the plate filter can be conducted in a narrow space, so the plate filter is convenient to demount, mount and maintain.

A local gas sealing device for additive and subtractive manufacturing relates to the technical field of additive manufacturing sealing equipment and comprises a fixed box, the fixed box is fixedly connected to a machine tool slide carriage, a movable laser cladding head and a welding gun are arranged in the fixed box, an upper sealing cover is fixedly connected to the opening side of the fixed box, the upper sealing cover is fixedly connected with a lower sealing cover through a flexible sealing cover with a bidirectional opening, and the edge of the bottom of the lower sealing cover is provided with a sealing air bag which can deform towards the inner side and is matched with an embedded groove in a machine tool workbench. According to the local gas sealing device for additive and subtractive manufacturing, only a machining area is locally sealed, the use amount of protective gas is reduced, and the preparation time in the inflation and deflation stage is saved.

The invention provides a lubricating oil pump test bed. The test bed comprises a test bed frame, and a power transmission system, a lubricating oil system, a vacuum system, a cooling system and an electrical control system are installed on the test bed frame; the lubricating oil system is connected to the power transmission system, the vacuum system, the cooling system, the electrical control system and a lubricating oil pump; and the lubricating oil pump is arranged on the test bed frame and is connected to the lubricating oil system through pipelines. The test bed can bear a high-altitude performance test and a ground reliability assessment test of the lubricating oil pump, and is convenient to disassemble and assemble, reasonable in arrangement and convenient to overhaul and maintain.

The invention discloses a numerical control multi-position die changing mechanism, which comprises a headstock and a headstock rotating mechanism used for driving the headstock to rotate at a set angle; a rotating shaft axis, a driving gear, a driving unit, a driving oil cylinder and a tapered wedge are arranged in the headstock, wherein the driving gear is superposed with a rotating shaft of the headstock, the driving unit is used for driving the driving gear to rotate, a piston rod of the driving oil cylinder is superposed with the rotating shaft of the headstock, and the tapered wedge is connected with the tail end of the piston rod of the driving oil cylinder; the numerical control multi-position die changing mechanism also comprises multiple groups of R die assemblies annularly distributed around the rotating shaft axis of the headstock; each R die assembly comprises an upper die, a lower die, an R die mounting base, a bearing, a bearing mounting base, a driven gear and a double-section pull rod, wherein the bearing is used for driving the R die mounting base to rotate, the bearing mounting base is used for connecting the headstock with the bearing, a rotating shaft axis of the driven gear is perpendicular to the rotating shaft of the headstock, and the double-section pull rod extends along a direction perpendicular to the rotating shaft of the headstock to the interior of the headstock.

The invention discloses a transmission structure of an oil pump, which comprises the oil pump and a balance shaft system. The oil pump comprises an oil pump rotor shaft, the balance shaft system comprises a balance shaft driving gear and a balance shaft driving shaft, the oil pump rotor shaft is connected with the balance shaft driving shaft through a driving shaft, and the balance shaft driving shaft is provided with the balance shaft driving gear connected with a chain wheel system. The transmission structure of the oil pump effectively connects a balance shaft and the oil pump in a driving mode through a hexagonal shaft, well and effectively composites the transmission of the balance shaft and the oil pump, can ensure the oil pump and the balance shaft to simultaneously and reliably work by only adopting one set of chain wheel driving system, and is simple in structure and convenient in assembly, disassembly and maintenance. Simultaneously, due to the fact that one set of chain wheel driving system is reduced, development cost is also reduced.

The invention discloses a portable subgrade compacting machine, which comprises a compacting device with a boom installed at the bottom of the boom. The compacting device includes an upper body and a lower body for matching connection with the upper body. A sinking groove is arranged in the end surface of the bottom of the upper body , the inner wall of the upper body on the upper side of the sinking tank is provided with a first sliding chamber extending left and right, and a second sliding chamber extending up and down is installed in the middle of the first sliding chamber, and the second sliding chamber is slidingly fitted and connected There is a lifting slider, and the first spring is press-fitted in the second sliding cavity on the top of the lifting slider. The middle position inside the lifting slider is provided with an inclined surface through the chute, and the inclined surface is connected to the lower side of the lifting slider. The end faces on both sides are symmetrically provided with top pressure inclined chute, and the first sliding cavity is slidably connected with an inclined surface pushing slider that extends into the inclined surface through the chute and is slidably connected; the present invention has simple structure and convenient operation. It is convenient to disassemble, maintain and overhaul, improve maintenance efficiency and improve the work efficiency of tamping.

The invention relates to the technical field of air purification, and particularly relates to an electrostatic precipitation technology and photocatalysis technology-based air purification device. The air purification device comprises an earthing dust collection electrode, a photocatalysis electrode and a corona electrode applied with similar voltage, and the value of voltage applied on the photocatalysis electrode is less than or equal to that of the voltage applied on the corona electrode. By applying the similar type of voltage on the photocatalysis electrode and the corona electrode and leading the voltage value of the photocatalysis electrode to be less than that of the corona electrode, the charged particulate pollutant can be guaranteed not to be precipitated on the surface of the photocatalysis electrode due to repulsive force of the photocatalysis electrode, so that the problem that a photocatalyst is easily failed due to pollution of particulate can be avoided, and the problems that the traditional purification device needs the installation of a plurality of high-density filtering membranes before photocatalysis process to easily cause large wind resistance, high cost, poor purification effect of the device and the like can also be avoided.

The invention discloses a double-bearing self-adjusting aligning web plate type round vibrating screen formed by connecting with a belt wheel device on a common motor. The belt wheel device is connected with an intermediate driving device which is connected with an eccentric device through a flexible coupler; the eccentric device is connected with a bearing chamber through a universal driving shaft; the belt wheel device consists of a larger belt wheel, a small belt wheel and a V-shaped belt; the eccentric device consists of an aligning bearing, an eccentric block and a shaft head flange; a web plate type vibration generator is arranged below the bearing chamber; and the lower end of the eccentric device is connected with the bottom of the web plate type vibration generator through the screen edge. The defects of an eccentric shaft structure can be avoided by using the structure.

The invention relates to the technical field of internal layout structures of engines, in particular to a wiring structure of an electric control oil atomizer. The wiring structure is simple and compact in structure, convenient to disassemble and maintain, reliable in guide sealing performance and low in cost. The wiring structure comprises a cylinder cover body assembly, a cover is arranged on the cylinder cover body assembly to form an installation cavity, an air inlet valve, an exhaust valve, a valve spring, a rocker arm and a push rod are arranged in the installation cavity, the end part of the push rod is connected with one end of the rocker arm, the other end of the rocker arm is connected with the end part of the air inlet valve and the exhaust valve, an electric control oil atomizer is arranged between the exhaust valve and the air inlet valve, an oil spraying opening of the electric control oil atomizer is communicated with a combustion chamber in the piston, the electric control oil sprayer is fixed through a pressing plate, an oil inlet of the electric control oil sprayer is connected with a high-pressure oil pipe penetrating through the cover, a sealing ring is arrangedbetween the high-pressure oil pipe and the cover, an electromagnetic valve binding post of the electric control oil sprayer is connected with one end of the connecting stud, and the other end of theconnecting stud penetrates through the sealing part of the cover and is fixed through a locking nut.

The invention discloses a power cabinet, which is characterized in that a power unit, a pulse control module and a heat dissipation fan all adopt drawer type structures, are pushed in and fixed on a framework of a cabinet body, and are fastened from the outer side of the framework, a bearing plate is arranged on the framework, the power unit is arranged above the bearing plate, the fan is arrangedat a corresponding position below the bearing plate, the power unit and the fan are aligned and fastened with an air duct opening in the bearing plate after being pushed in and fixed, cooling air enters from the lower portion of the cabinet body and flows to the upper portion of the cabinet body through the fan and the power unit, the power unit comprises power modules, a support capacitor and afirst composite busbar, the power modules and the support capacitor are electrically connected to the first composite busbar, and every two power modules are connected in parallel to form a U, V and Wthree-phase alternating current, and are connected to an alternating current output copper bar through a current sharing bar. According to the invention, the technical problems that the existing power unit cannot directly carry out power level and capacity expansion, modular and platform development of a power cabinet is inconvenient, the cost is high, and maintenance is inconvenient can be solved.

The invention discloses an improved portable roadbed tamper. The improved portable roadbed tamper comprises a lazy arm, and a tamping device arranged at the bottom of the lazy arm. The tamping devicecomprises an upper machine body and a lower machine body used for connecting with the upper machine body in a fitting mode, a sinking slot is formed in the bottom end face of the upper machine body, afist sliding cavity extending left and right is formed in the inner wall body of the upper machine body on the upper side of the sinking slot, and a second sliding cavity extending up and down is formed in the middle position in the first sliding cavity in a penetrating mode. The second sliding cavity is internally connected with a lifting sliding block in a sliding fit mode, the second sliding cavity at the top portion of the lifting sliding block is internally connected with a first spring in a pushing-pressing fit mode, a bevel through sliding slot is formed in the middle position in the lifting sliding block in a penetrating mode, pushing-pressing inclined sliding slots are symmetrically formed in the end faces of the left and right sides of the lifting sliding block on the lower sideof the bevel through sliding slot, the first sliding cavity is internally connected with bevel pushing-pressing inclined pushing-sliding blocks in a sliding fit mode, and the bevel pushing-pressing inclined pushing-sliding blocks stretch into the bevel through sliding slot and are connected in a sliding fit mode. The improved portable roadbed tamper is simple in structure, convenient to operate and convenient to disassemble, maintain and repair; and the maintenance efficiency is improved, and the working efficiency of tamping is improved.

The invention provides a solar street lamp. The solar street lamp comprises a base, a lamp pole mounted on the base, a first supporting rod and a second supporting rod, wherein the first supporting rod and the second supporting rod are arranged on the lamp pole, a road lamp is installed on the first supporting rod, and a solar panel is installed on the second supporting rod; and a storage batteryset is arranged on the position, on the outer side of the lamp pole, of the base, and a baffle is arranged at the position, above the storage battery set, of the lamp pole. The solar street lamp is simple in overall structure, the storage battery set is installed outside the lamp pole, and later disassembly and maintenance are facilitated.

The invention discloses a motor. The motor comprises a stator and a rotor; the stator comprises a yoke part and multiple circumferentially arranged teeth parts; the motor further comprises an insulation skeleton, the insulation skeleton comprises multiple skeleton units circumferentially arranged and matched with multiple teeth parts; the skeleton units and the yoke part are in detachable connection. By arranging multiple skeleton units cooperated with the teeth parts, so that the teeth part is insulated from the winding arranged on the teeth part, the motor is convenient for assembling in themanufacturing by arranging the skeleton units and the yoke part as the detachable connection, and the dismounting and maintenance are convenient in the later maintenance.

The invention belongs to the plasma technology, and particularly relates to a cascade type plasma generator. The generator comprises a cathode assembly, a cathode seat, an anode, a cathode seat and an anode cascade plate. The cathode seat and the cascade plates are coaxially mounted, the cathode seat is fixedly connected with the cascade plates below the cathode seat through the screw rod, and the insulating sleeve is wrapped outside the connecting screw rod. Each part of the cascaded plasma generator is provided with a cooling channel, and the parts are independently water-cooled and do not interfere with each other, so the parts are convenient to independently disassemble, assemble and maintain; a cascade plate is adopted for transition between the cathode and the anode, when the equipment works, working gas is ionized between the cathode and the anode to form plasmas, electrons are emitted from a cathode head 23, accelerated by an electric field and then fall on the cascade plate, the cascade plate is adopted for transition, electrode material loss caused by electron bombardment can be solved, electrode ablation is effectively relieved, and the service life is prolonged.

The invention relates to an electric inertia navigation turntable galloping state determination device and a method thereof. An electric inertia navigation turntable comprises a rotating shaft for driving rotation of the turntable and a fixed frame shaft which sleeves the outer circumference of the rotating shaft. The device is characterized in that a magnetic piece mounting seat is mounted on theshaft end of the rotating shaft; an inductive magnetic piece is attached to the magnetic piece mounting seat; two sensors are mounted on the end surface of the frame shaft; two sensors are symmetrically arranged at the center of the frame shaft; when rotating one turn with the rotating shaft, the inductive magnet piece passes through two sensors in sequence and can trigger the sensors to generatecorresponding sensing signals; and two sensors send the generated corresponding sensing signals to a signal processing unit for determining the galloping state of the electric inertia navigation turntable. The device has the advantages of simple structure and convenient disassembly and maintenance. The determination method using the device utilizes a fixed angle time measuring method to determinethe rotational speed. The method is convenient, quick, reliable, and easy to be engineered.

The invention relates to a light emitting diode (LED) lamp. The lamp comprises a shell and an LED light source component arranged on the shell, wherein a clamping hole and a notch communicated with the clamping hole are formed in the shell; and a clamping part is arranged on the LED light source component, enters the clamping hole from the notch and rotates, so that the clamping part is clamped with the edge of the clamping hole, and the LED light source component is fixed on the shell in a detachable mode. When a light source of the LED lamp is replaced, the shell is not required to be detached, only the LED light source component is needed to be rotated, and the clamping part of the LED light source component is removed from the notch of an installation plate of the shell, so the light source of the LED lamp is convenient to replace.

The invention provides a shaft coupling structure of a calendaring machine. The shaft coupling structure of the calendaring machine has the advantages that the disassembly and the maintenance are simple and convenient, the coaxiality of shaft assembling can be guaranteed, and the service life is improved. The shaft coupling structure of the calendaring machine comprises a first connecting piece and a second connecting piece. The shaft coupling structure of the calendaring machine is characterized in that a cone-shaped convex block is arranged on the axial inner side end face of the second connecting piece in an external convex mode, and a cone-shaped groove matched with the cone-shaped convex block is formed in the axial inner side end face of the first connecting piece; a flat key is arranged on the end face where the cone-shaped convex block is attached to the cone-shaped groove, the flange portion of the first connecting piece is connected with the flange portion of the second connecting piece through a pin, the first connecting piece and the second connecting piece are both provided with a pressing plate in a sleeved mode, and the inner side end faces of the pressing plates are arranged on the outer side end faces of the pin in a pressing mode; first connecting holes are both in the shape of a cone, and the larger radial end face of each connecting hole is located at the outer side of the first connecting piece; a cone-shaped sleeve is arranged in the corresponding connecting hole in a matched mode, and motor output shafts of the calendaring machine are arranged in axial mounting holes of the cone-shaped sleeves respectively.

The invention discloses an integrated prepayment type ultrasonic heat meter which comprises an ultrasonic flow meter, a matched temperature sensor, a calculator, a card reader and a control valve. A meter core unit of the ultrasonic flow meter and a valve element unit of the control valve are arranged in the same shell, the front portion of the shell is provided with a water inlet, the water inlet is provided with outer tube threads of a connection pipeline, the meter core unit of the ultrasonic flow meter is arranged in an inner cavity of the middle portion of the shell, the valve element unit of the control valve is disposed in an inner cavity of the rear portion of the shell, the tail end of the shell is provided with a hole and is connected with the front portion of an end cap of the control valve through threads, the rear portion of the end cap of the control valve is provided with a water outlet, and the water outlet is provided with outer tube threads of the connection pipeline. By means of the design of the integrated structure, the meter core unit of the ultrasonic flow meter and the valve element unit of the control valve are arranged in the same shell, so that the heat meter is convenient to disassemble, assemble and maintain, the end cap of the control valve and the shell are sealed through a sealing ring, and metering precision and use reliability of the prepayment type ultrasonic heat meter are improved.

The invention discloses a support base for a cloth dehydrator. The support base comprises a cloth dehydrator body, support rods are fixedly connected to the two sides of the dehydrator body, and a fastener is fixedly connected to the side, far away from the dehydrator body, of each support rod. According to the support base for the cloth dehydrator, by means of the support rods and cooperation ofa cone part, a fixed sleeve, a limiting plate, a support column, a clamping part, a tension spring, a sliding block, a connecting pipe, a moving sleeve and a sliding rod, the effect that in the dehydration process of the dehydrator, by means of the space of the fastener shifting inside the fixed sleeve, displacement of the moving sleeve on the sliding rod and elastic deformation reacting force ofa first compression spring and a second compression spring, the support base cannot shift is achieved; by pulling an insertion rod upwards, the insertion rod is separated from a clamping block, a stress plate is in threaded connection with the support rod, and then the effects of disassembling and maintaining the support base conveniently are achieved; therefore, the service life of the cloth dehydrator is prolonged.

The invention discloses modular combined outdoor lighting equipment and a mounting method thereof, and relates to the technical field of lamp poles. The equipment comprises a base, a main rod, a lamp,functional equipment and an auxiliary rod, the auxiliary rod is fixedly connected to the top of the main rod; at least one concave or convex mounting surface is arranged on the outer edge of the auxiliary rod; the lamp is fixedly connected with the mounting surface; the base is fixedly connected to the bottom of the main rod. Wherein a mounting groove is formed in at least one outer side surfaceof the main rod; wherein an installation groove is formed in the main rod, a fixing piece is embedded in the installation groove, the outer edge of the main rod is sleeved with a module board, the module board is of a spliced structure, the module board is composed of at least one sub-board and/or at least one mother board, the module board is fixedly connected with the fixing piece, and the functional equipment is fixedly connected with the main rod. According to the novel clamping groove type lamp pole structure and the connecting assembly matched with the clamping groove type lamp pole structure, modular installation of functional equipment is achieved.

The invention discloses a ceiling lamp and a lamp housing thereof. The ceiling lamp comprises a ceiling lamp housing and a light source component. The ceiling lamp housing comprises a main housing body, a top cover, a connection column, a base and fastening components. The connection column is in sliding connection with the top cover along the own axial direction, the first end is connected with a suspension part on an attachment, the second end penetrates the top cover vertically to extend into the main housing body, and a tension spring is arranged between the second end of the connection column and the base. A plurality of snapping grooves are formed in the connection column, two magnets are arranged on the top cover, and snapping edges are arranged on the magnets. Each of the fastening components comprises an adjusting rod and a supporting rod. The first ends of the adjusting rods are in rotary connection with the top cover, and the second ends are in rotary connection with the middles of the supporting rods. The first ends of the supporting rods are in rotary connection with the base. The axial position of the connection column can be locked by mutual attraction of the two magnets, and By the matching of the fastening components and the main housing body, the top cover can be opened while the ceiling lamp is dismounted from a suspension structure without other auxiliary tools, so that the ceiling lamp is convenient and quick to dismount and maintain, and work hours are saved.

The invention discloses a fully-shielded optical fiber HDMI connector and a connecting line. According to the fully-shielded optical fiber HDMI connector, a metal housing and a metal end cover are assembled so as to form a sealed accommodating space, and therefore, the full shielding of the HDMI connector assembly is realized, and electromagnetic leakage that may occur on the circumferential sidesurface of the HDMI connector assembly can be decreased; a gap at the joint of the metal end cover and the metal housing, a gap between the sleeve of a cable wire rod connection head and the inner wall of the first through hole of the metal housing, and a gap between the inner wall of the second through hole of the metal end cover and an HDMI plug are all filled with a conductive material, and therefore, electromagnetic leakage which may occur when the metal end cover avoids the HDMI plug, when the metal housing avoids a cable wire rod, and or occur at the joint the metal end cover and the metal housing, can be further decreased, and the electromagnetic shielding effect of the optical fiber HDMI connector can be greatly improved, and therefore, the requirements of application conditions which have high shielding requirements can be satisfied.