125results about How to "Avoid dust" patented technology

The invention provides an automatic spraying cooling method for an air cooling island, and solves the problems that an existing air cooling island auxiliary cooling spraying device is complex in structure, and a spraying cooling control and adjustment method is complex, and according to the technical scheme, the cooling method comprises the following steps that an air cooling island automatic spraying cooling system is arranged on the air cooling island; checking equipment and a control system; opening water supply and opening a water inlet valve of a water supply system; adjusting pressure to start spraying; cooling is controlled, and a PLC of the master control cabinet judges according to a preset temperature threshold value; monitoring parameters; and observing the spraying effect. The system can automatically perform spray cooling according to the real-time temperature of the air cooling island, strengthen the cooling effect of the air cooling island, increase the air humidity, prevent corrosion and dust accumulation, cope with the environment temperature change, reduce the operation of cooling auxiliary equipment, relieve the thermal stress of the air cooling island, assist in improving the cooling efficiency of the air cooling island, improve the output of a generator set and save energy.

The invention relates to the field of feed production, in particular to a rotary feed production sorting device for animal husbandry, and solves the problems that the screening progress is affected due to the fact that existing equipment needs to be shut down when screening holes of the existing equipment are blocked, and flying dust can be generated in the screening process to pollute the workshop environment. A polygonal roller which is obliquely arranged is rotationally connected to the frame body, a discharging opening is formed in the downwards-inclined end of the polygonal roller, and a plurality of sieve plates which can slide in the radial direction of the polygonal roller are arranged on the circumferential surface of the polygonal roller. According to the feed screening device, the polygonal roller and a first wind wheel and a second wind wheel of the dust removal assembly can be rotated through the driving assembly, in the rotating process of the polygonal roller and a screen plate, feed can roll in the polygonal roller, the feed can be screened through the screen plate, and in the screening process, dust mixed in the feed can be raised; and the dust can be collected through the dust removal assembly and conveyed to a designated position, and dust raising in a workshop is avoided.

The invention discloses a building template surface building repairing device, and relates to the technical field of building template repairing, the building template surface building repairing device comprises a belt conveyor, the top of the belt conveyor is provided with a polishing device and a drying device, the drying device comprises a second mounting cover, and the top of the second mounting cover is fixedly provided with an air heater; an air outlet of the air heater is fixedly connected with a hot air pipe, the tail end of the hot air pipe is fixedly connected with a flow dividing pipe, the tail end of the flow dividing pipe is fixedly connected with a plurality of air outlet covers which are distributed left and right, and the air outlet covers are located in the second mounting cover; cement blocks on the surface of the building formwork can be ground and repaired through the grinding device, in the period, through cooperation of the wetting mechanism, the problem that the dry cement blocks are ground into powder, and dust is raised can be solved, and the repaired building formwork is in a wet state at the moment; therefore, hot air can be blown to wet building templates through the drying device to dry the wet building templates, the dried building templates are stacked together and not prone to being stuffy and rotten, and the service life is longer.

The utility model relates to the technical field of high-voltage transmission lines, in particular to a lightning arrester with a protection structure, which comprises a lightning arrester component, a protection component is mounted at the top of the lightning arrester component, and a first explosion-proof component and a second explosion-proof component are mounted at the bottom of the lightning arrester component. The lightning arrester assembly comprises a lightning arrester body, a first wiring terminal is installed at the top of the lightning arrester body, an installation cross arm is installed on the outer wall of the bottom of the lightning arrester body, a disconnector is installed at the bottom of the lightning arrester body, and a second wiring terminal is installed at the bottom of the disconnector. According to the improved lightning arrester, the protection assembly is adopted, so that the situation that when the lightning arrester is used, water and dust are accumulated at the joint of the first wiring terminal and the lightning arrester body, and use of the lightning arrester is affected can be prevented; and the first explosion-proof assembly and the second explosion-proof assembly are adopted, so that when the lightning arrester is used, fragments generated by explosion of the disconnector can be prevented from hurting surrounding people and equipment.

The invention discloses an integrated measuring device for a voltage transformer, and relates to the technical field of electrical equipment measurement. A base is included; a mounting piece is arranged on the base and is used for positioning and mounting to-be-detected equipment; a measuring piece is arranged at the other end of the base, the measuring piece comprises a measuring box, a measuring integrated part is arranged in the measuring box, an electrical butt joint part is arranged on the outer side of the measuring box, and the electrical butt joint part is connected with equipment to be detected through a wire so as to carry out electrical variable detection; a dust removal piece is arranged in the measuring box and is used for removing accumulated dust in the measuring box; a protection part is arranged on the base and below the measuring box and is used for cleaning and protecting the electrical butt joint part, and a shaking part is arranged on the base and is used for controlling the mounting part and the measuring box on the measuring part to shake; electrical variable detection of an electrical product can be completed, and dust removal and maintenance are facilitated.

The utility model relates to the technical field of beauty instruments, in particular to a beauty instrument convenient to clean. The beauty instrument convenient to clean comprises a beauty instrument body, a nursing head, a connecting frame, an installation frame, a sliding block, an elastic piece, an electric lead screw and the like, the nursing head is arranged on the rear side of the top of the beauty instrument body, the connecting frame is rotationally connected to the upper portion of the rear side of the beauty instrument body, and the bottom of the connecting frame is clamped with the nursing head; electric lead screws used for driving the cleaning roll paper to move are rotationally connected into the connecting frame in a bilateral symmetry mode, the electric lead screws are in threaded connection with mounting frames, the two mounting frames are distributed in a bilateral symmetry mode, sliding blocks are slidably connected to the lower portions of the sides, close to each other, of the mounting frames, and elastic pieces are connected between the tops of the sliding blocks and the inner tops of the mounting frames. The electric lead screw and the motor are controlled to work, under the matching action of the installation frame, the sliding block, the elastic piece, the paper placing rod, the cleaning roll paper and the paper collecting rod, the surface of the nursing head can be automatically and comprehensively cleaned, and cleaning is convenient.

The utility model relates to the technical field of dust removal equipment for an automatic paper production line, in particular to a dust removal structure for the automatic paper production line. When a dust removal structure for an automatic paper production line is used, dust on the surface of paper is prone to flying, a dust blowing structure needs to move back and forth, efficiency is low, and energy consumption is large. The utility model provides a dust removal structure for an automatic paper production line. The dust removal structure comprises a mounting plate, a loading assembly, an auxiliary assembly, a mounting assembly, a dust removal assembly and a feeding assembly, compared with a traditional dust removal structure for an automatic paper production line, the dust removal structure for the automatic paper production line has the advantages that dust on the surface of paper is prone to flying, a dust blowing structure needs to move back and forth, efficiency is low, and energy consumption is large; the position can be automatically adjusted to clamp the two faces of the paper, dust on the surface of the paper is taken away in the paper output process, and the paper dust removal efficiency is improved while energy is saved.

The utility model discloses an overwater cast-in-place simply supported beam dismantling device which is suitable for the field of bridge dismantling. Comprising a buoyancy tank platform for providing overwater operation support and transportation in the overwater cast-in-place simply supported beam dismantling process, an SPMT module transport vehicle capable of adjusting the height of a vehicle body, a bracket with the bottom capable of allowing the SPMT module transport vehicle to enter, and a hydraulic lifting device with the height capable of being increased to a preset height so that the to-be-dismantled cast-in-place simply supported beam can be separated from a support. Compared with an existing blasting device or a floating crane dismantling device, the device has the advantages that modular design and assembly are efficient, the device can be repeatedly used for other bridge engineering, the construction cost is low, the whole beam body is dismantled through hydraulic synchronous jacking, chippings are prevented from polluting water, and environmental protection and construction safety are both achieved.

The invention relates to the technical field of grinding, in particular to an electromechanical equipment grinding machine tool with a dustproof function, which comprises a base, a power unit I, a mounting frame, a motor I, a grinding disc, a material frame and the like, the base is connected with a power unit I; the first power unit is connected with a mounting frame and used for driving the mounting frame to move in the left-right direction, the front-back direction and the up-down direction. A motor I is fixedly connected to the mounting frame; an output shaft of the first motor is connected with a grinding disc. And a material frame is placed on the base. Under the action of the polishing liquid, the problem that dust is raised due to splashing of chippings is avoided, the polishing effect can be enhanced through the polishing liquid, the polishing liquid does not need to be continuously injected subsequently, and the operation procedures are reduced; and moreover, the inclined cleaning plate firstly cleans away chippings on the moving path of the grinding disc, so that the situation that the chippings are clamped between the grinding disc and the steel plate, and the subsequent grinding effect of the grinding disc on the steel plate is affected is avoided.

The invention relates to the technical field of tobacco production, in particular to food-grade modified silica gel for tobacco production equipment, application of the food-grade modified silica gel and the tobacco production equipment. The modified silica gel comprises a silica gel raw material and further comprises the following components in percentage by mass: 0.5%-0.8% of a silane coupling agent, 1%-2% of a cross-linking agent, 2%-5% of molybdenum disulfide, 7%-12% of flame-retardant fibers, 5%-15% of a toughening agent, 5%-12% of an anti-sticking agent and 3%-8% of a wear-resistant agent, and the wear-resistant agent is micron-sized wear-resistant powder. A sealing device and a cleaning device of the tobacco production equipment are prepared from the modified silica gel. The modified silica gel has good mechanical property and flame retardance, food-grade safety, long service life and good effect, and cigarettes produced by the equipment can keep good quality.

The utility model relates to the technical field of mortar pre-mixing, and discloses a machine-made sand concrete mortar pre-mixing device which comprises a fixing frame, a control switch is fixedly assembled on the top of the fixing frame, and a driving motor is fixedly assembled on the inner wall of the bottom of the fixing frame. The power output end of the driving motor is in transmission connection with one end of a driving chain, the other end of the driving chain is in transmission connection with a steering gear, a fixing frame is fixedly assembled at the bottom of the steering gear, a fixing plate is fixedly assembled on the inner wall of the bottom of the fixing frame, and an electric telescopic assembly is rotationally connected to the top of the fixing plate. The driving motor drives the steering gear through the driving chain, the steering gear drives the stirring rods to rotate, by arranging the first belt pulley and the multi-stage belt pulley, the transmission ratio between the two sets of stirring rods can be changed by changing the installation position of the belt, and then the stirring bin assembly can be suitable for stirring operation of different materials.

The utility model discloses an electrolytic bath accumulated material dust collection device, which belongs to the technical field of accumulated material dust collection, and comprises a dust collection tank, a base, a dust collection assembly and a pressure early warning assembly, the dust collection tank is arranged on the base, the dust collection assembly is arranged on the dust collection tank, and the dust collection assembly comprises an ejector, a three-way pipe and a dust collection pipe. The ejector and the dust collection tank are provided with a pressure early warning assembly, and the pressure early warning assembly comprises two pressure detectors and an alarm. The dust collection device has the advantages that the dust collection device is moved to the position near the electrolytic bath, accumulated materials on the electrolytic bath can be treated through the dust collection assembly, compressed air is introduced into the ejector communicated with the dust collection tank, suction force can be generated in the dust collection tank under the action of the ejector, and then the dust collection pipe is aligned with the accumulated materials of the electrolytic bath for dust collection. And the pressure early warning assembly is arranged on the dust collection device, pressure monitoring can be conducted on the ejector and the dust collection tank, an alarm can be given out in the abnormal state, and the safety of the device is further improved.

The present invention discloses an intelligent heat dissipation, dustproof and waterproof self-cleaning environmental control system, which belongs to the technical field of environmental control systems, and includes a purification box, an opening is provided at the top of the purification box, a filter bag is placed in the opening, an annular plate is fixedly connected to the top of the filter bag, the annular plate is fixedly connected to the top of the purification box, an air collecting hood is fixedly connected to the top of the annular plate, an air flow sensor is installed on the inner wall of the air collecting hood, and a driving box is fixedly connected to the top of the purification box. The present invention is provided with an exhaust fan, a filter bag, an air bag, a rotating ring, a cleaning plate and a fan blade plate. The exhaust fan sucks external air and dust into the purification box, and under the action of the filter bag, the dust filtering function is realized. In the process of the gas inside the air bag being released, the gas drives the fan blade plate to rotate, and the rotation of the fan blade plate drives the rotating ring and the cleaning plate to rotate. The cleaning plate can scrape off the dust on the surface of the filter bag, and at the same time, the fan blade plate generates wind force to blow away the fallen dust, thereby realizing the automatic cleaning function.

The utility model relates to a kind of vertical screw material cutting door mechanisms, including first pusher, the discharge pipe of the first pusher acting end, the material pipe being communicated with the discharge pipe, the moving piece of moving material evenly and the sealing piece of sealing or opening the discharge pipe;Discharge groove is opened in the discharge pipe;One end of the material pipe is communicated with the discharge groove, and other end is connected with bunker;The moving piece rotates in the discharge pipe;The bottom of the discharge groove is open in shape;The sealing piece is arranged on the discharge pipe, and the acting end of the sealing piece corresponds with the bottom of the discharge pipe.Solved movable gate by manual operation, its opening degree is controlled depending on operator experience, not only labor intensity is big, and discharge speed and flow are difficult to accurately control, it is extremely easy to lead to powder uneven discharge, affect the precision and efficiency of material packaging.

The utility model discloses a kind of feeding devices for light calcium production and manufacture, including in the lower part of base, and the lower opening of directly facing hopper placing cavity, is provided with protective structure. The protective structure mainly includes two symmetrically arranged collection plates;One end of collection plate is hinged to the bottom of base by hinged shaft. Hinged shaft is internally provided with torsion spring. The utility model in use, if there is scattered material falling into hopper placing cavity when hopper is in the process of rising, the scattered material falling is directly on the collection plate, the collection plate holds the material falling, avoids scattered material scattering;When the hopper empties material, again fall into hopper placing cavity, the bottom of hopper is against scattered material and moves downward, when moving a certain distance, collection plate is forced to open, material falls and is collected, to reduce falling distance, avoid dust raising, simultaneously avoid the problem that hopper cannot be placed.

The present specification describes a gas heating reformer comprising: one or more tubes containing a steam reforming catalyst; and a housing surrounding the tube and defining a housing side with the tube; wherein the housing comprises an inlet and an outlet for a heat exchange medium; wherein the shell side is provided with a water gas shift catalyst at one or more zones of the shell side in which the heat exchange medium in contact with the shell side during use has a temperature of 500 DEG C to 750 DEG C. Also described is an apparatus for producing hydrogen, ammonia or methanol comprising a gas heated reformer. The water gas shift catalyst may be retrofitted to an existing gas heater reformer.

The utility model provides an isolation fence for construction, which belongs to the field of construction isolation equipment and comprises a telescopic guardrail, reflective strips adhered to the front and rear surfaces of the telescopic guardrail, connecting plates arranged on two sides of the telescopic guardrail, fixing blocks arranged on the upper portions of the side surfaces of the connecting plates, portable handles arranged above the fixing blocks, and mobile power sources arranged on the lower surfaces of the fixing blocks. A fixing block is arranged on the telescopic guardrail, a lighting lamp is arranged on one side of the fixing block, a warning lamp is arranged on the other side of the fixing block, a positioning block is arranged at the bottom of the side face of the connecting plate, ground anchor connectors are arranged on the two sides of the positioning block, and ground anchor bolts are arranged in the ground anchor connectors. A storage box is opened, a ground anchor bolt and a tool are taken out to enable a positioning block to be fixedly connected with the ground, meanwhile, a lighting switch and a warning switch are turned on to lighten a lighting lamp and a warning lamp, and construction warning is conducted in cooperation with a reflective strip bonded to the telescopic guardrail.

The present invention discloses an integrated mortar mixer that is convenient for transportation and assembly. A box body B is fixedly connected to the top of a box body A. A mixing drum is provided on one side of the box body A. A water tank is fixed in the box body. An additive batching box is fixed on the side wall of the box body B and on one side corresponding to the mixing drum. A cement silo is fixed in the box body B. A sand silo is fixed in the box body A. A dust removal silo is also provided on the side wall of the box body B located on one side of the additive batching box. The water pump in the water tank is connected to the water tank through a pumping pipe. The cement silo is connected to the mixing drum through a conveying dragon. The sand silo is connected to the mixing drum through a sand conveying device A. Support legs are fixed to the bottom of the mixing drum. Pressure sensors for measuring the weight of the material in the mixing drum are respectively provided on the support legs. It can be seen from the above structure that the integrated mortar mixer that is convenient for transportation and assembly of the present invention ensures the weighing accuracy of the mixed mortar materials and the quality of the mortar. It is also convenient for one-time transportation and reduces transportation costs.

The utility model relates to an engine fan dust-raising-preventing fan cowl device, an engine and a vehicle. A wind shield is connected to the side, facing the ground, of a fan cowl body and located on the peripheral side wall of a cowl ring of the fan cowl body. In the axial direction of the cover ring, the side, close to the fan, of the wind shield extends in the axial direction to form a wind shielding area, the projection, in the axial direction of the cover ring, of the fan is located in the wind shielding area, air generated by rotation of the fan and blown to the ground is blocked, and waste soil, dust, dust, catkin and other easily-drifting objects on the ground are prevented from being blown up. And meanwhile, a protection effect is achieved, and the dust raising phenomenon of the whole vehicle is avoided.

A moving frame is connected in a hollow brush handle in an up-down sliding mode, bristles are arranged at the upper end of the moving frame, a rotating frame capable of rotating in the brush handle is connected below the moving frame in a rotating mode, a blocking portion for blocking the rotating frame from moving downwards is arranged in the brush handle, and a through hole is formed in the blocking portion. The rotating frame is provided with a projecting shaft which penetrates through the through hole and extends below the blocking part, a knob connected with the projecting shaft is arranged below the brush handle, the rotating frame is provided with a rotating shaft, the moving frame is provided with a sleeve arm, the rotating shaft is provided with a groove which is obliquely arranged from top to bottom along the outer surface of the rotating shaft, and the inner side of the sleeve arm is provided with a convex point which protrudes inwards in the groove. The protruding point is matched with the groove and moves along the groove to drive the moving frame to slide upwards or downwards in the brush handle when the rotating shaft rotates, the moving frame and the bristles are located in the brush handle when the protruding point is located at the lower end of the groove, the moving frame drives the bristles to extend upwards to the upper portion of the brush handle when the rotating shaft rotates to enable the protruding point to move towards the upper end of the groove, and the toothbrush is simple in structure and convenient to use.

This invention provides an automated feeding device for food seasoning production, relating to the technical field of conveying and feeding equipment. It includes: a tilting support plate; two downward-supporting mounting rods, perpendicularly welded to the tilting support plate, are symmetrically arranged on both sides of the middle portion of the tilting support plate; two rod sleeves are symmetrically slidably mounted on the two mounting rods; a collar is welded to the bottom end of each rod sleeve; a large-diameter tension roller is rotatably mounted between the two collars; two small-diameter tension rollers are symmetrically rotatably arranged on both sides of the large-diameter tension roller; and two tensioning wheels are symmetrically rotatably arranged above the space between the two small-diameter tension rollers and the large-diameter tension roller; the lower layer of the skirt conveyor belt passes through the small-diameter tension rollers, tensioning wheels, and large-diameter tension rollers. This invention can shake off and clean the material adhering to the bottom skirt conveyor belt placed at the bottom of the tilting support plate after unloading, preventing the adhering material from falling from the bottom skirt conveyor belt and causing dust and waste.

The invisible fan lamp comprises a circular-truncated-cone-shaped fan base, a fan motor and fan blades are fixed to the top face of the circular-truncated-cone-shaped fan base, and a center light source plate and a circular lampshade are fixed to the bottom face of the circular-truncated-cone-shaped fan base. An annular lifting air guide table is further arranged, and a horn-shaped convex cylinder is integrally formed on the inner wall of the annular lifting air guide table; a lifting driving structure is arranged between the edge of the circular-truncated-cone-shaped fan base and the annular lifting air guide table; the side wall of the horn-shaped protruding cylinder is provided with a lifting receding groove hole. An annular air outlet is formed between the edge of the circular-truncated-cone-shaped fan base and the inner wall of the horn-shaped protruding cylinder. The lifting driving structure drives the circular-truncated-cone-shaped fan base to ascend and descend, and the size of the annular air outlet is changed. The fan is reasonable in structural arrangement, the lifting driving structure drives the circular-truncated-cone-shaped fan base to ascend and descend, the size of the air outlet is adjusted, adjusting operation is convenient and fast, cleaning and maintaining operation is convenient, and the blowing requirements of different air volumes can be met.

The utility model discloses a district wheel hub driving motor protection structure system meeting IP requirements, which comprises a casing, a support arm arranged on the top of the casing, an end cover arranged between the casing and the support arm and arranged on the lower portion of the support arm, an aluminum support fixedly arranged on the inner side of the end cover, and a rotating shaft arranged in the middle of the casing. The upper and lower ends of the rotating shaft are respectively sleeved with a front-end bearing and a rear-end bearing. The utility model has the beneficial effects that a first heavy labyrinth structure full of grease is formed between the oil storage tank of the aluminum bracket and the groove on the back surface of the end cover, and a second heavy labyrinth is formed between the annular upright post of the supporting arm and the annular upright post of the end cover, so that the grease in the first heavy labyrinth cannot be damaged by splashed water, and the dustproof and waterproof effects are further achieved.

The utility model belongs to the technical field of gas pressure detection, and particularly relates to an industrial gas pressure detection device which comprises a box body, T-shaped pipes are fixedly installed on the two sides of the bottom end in the box body, the two ends of each T-shaped pipe penetrate through the two sides of the box body respectively and extend to the outer wall of the box body, and the two ends, penetrating through the outer wall of the box body, of each T-shaped pipe are fixedly connected with first connecting discs. A first connecting disc is arranged in the box body, a second connecting disc is arranged on the side, away from the box body, of the first connecting disc in a contact mode, and a circular ring is fixedly installed on the side, away from the box body, of the first connecting disc. A gap at the joint of the first connecting disc and the second connecting disc is blocked through the sealing ring, so that gas is prevented from leaking outwards from the joint of the first connecting disc and the second connecting disc, and the barometer can better detect the air pressure in the airflow pipeline.

The utility model belongs to the technical field of blackboard erasers, and particularly relates to a dust-falling-free blackboard eraser which comprises a blackboard eraser body, a connecting base is arranged on the back face of the blackboard eraser body, a holding plate is arranged on the back face of the connecting base, a telescopic cavity is formed in the side face of the blackboard eraser body, and a telescopic rod is installed on the inner side of the telescopic cavity in an inserted mode. One end of the telescopic rod is connected with a ball mounting sleeve, a ball is arranged in the ball mounting sleeve, a spring is arranged in the telescopic cavity, the outer side of the telescopic rod is sleeved with a connecting plate, the connecting plate and the outer cover body are integrally formed, and a dust collection bag fixing nail is arranged on the side face of the outer cover body. A dust collection bag is fixedly arranged on the outer side of the outer cover body through dust collection bag fixing nails, a storage side pocket is arranged on the side face of the dust collection bag, and an anti-missing clamping device is arranged in the storage side pocket. When the blackboard eraser is used for erasing a blackboard, a large amount of flying dust is effectively prevented from being generated, and the adverse effect of blackboard erasing on the health of teachers and students is reduced.

The utility model belongs to the technical field of feeding equipment, and particularly relates to small squirt injection production feeding equipment which comprises a feeding component and a charging basket, the bottom end of the charging basket is fixedly communicated with a connecting component, one end of the feeding component is in threaded connection with the connecting component, and the other end of the feeding component is in threaded connection with the charging basket. The feeding component comprises an insertion pipe, one end of the insertion pipe is fixedly communicated with a reducer pipe, one end of the reducer pipe is fixedly communicated with an inclined pipe, the top of the outer wall of the insertion pipe is provided with an external thread used for being connected with the connecting component, and the outer wall of the insertion pipe is fixedly connected with exhaust pipes distributed around the axis of the insertion pipe at equal intervals. According to the utility model, when the small squirt injection is produced, raw materials are poured into the charging basket and enter the bottom of the batching kettle through the connecting component and the feeding component, so that the flying dust of the raw materials is avoided, the air in the batching kettle is exhausted through the exhaust pipe after the raw materials enter the batching kettle, and the air is filtered by the annular filter, so that the air pollution can be avoided.

The invention discloses a hinged dumper and a pipeline fixing device thereof. The hinged dumper comprises an inner support, at least one pipe clamp assembly and at least one rubber sleeve hoop. The right side of the inner support is fixed to a right front column of a front frame, the left side of the inner support is connected with the supporting frame, and the supporting frame is used for supporting a cab and fixed to a left front column of the front frame. At least one pipe clamp assembly is installed on the inner support, pipe grooves of multiple specifications are formed in the pipe clamp assembly and used for fixing hydraulic pipes of different specifications, and all or part of the hydraulic pipes are bundled together through at least one fixing belt; and at least one rubber sleeve hoop is arranged on the inner bracket and is used for fastening a plurality of front vehicle wire harnesses together. The hinged type dumper pipeline fixing device is safe and reliable, can be used for supporting and fixing a hydraulic pipeline and can also be used for fixing a front dumper wiring harness, and an operator can conveniently maintain parts below a cab.

The present invention provides a semiconductor device and a manufacturing method thereof, wherein a passivation layer is first formed, the passivation layer covers the side wall and top of the conductive layer and the semiconductor substrate, the passivation layer can protect the conductive layer and the semiconductor substrate, and prevent dust or water vapor, etc.; then, a sidewall material layer is formed on the passivation layer, the sidewall material layer covers the passivation layer, and then the sidewall material layer is etched to remove the sidewall material layer on the semiconductor substrate and the sidewall material layer on the top of the conductive layer, and the sidewall material layer on the sidewall of the conductive layer is retained to form a sidewall layer, the sidewall layer can play a role in supporting the conductive layer, and prevent the conductive layer from collapsing or tilting in a high temperature environment. Compared with the prior art, in the process of etching the passivation layer, the over-etching amount of the passivation layer is less, which can avoid damaging the conductive layer below the passivation layer, thereby avoiding plasma damage.

The hidden fan lamp comprises a circular-truncated-cone-shaped fan base, a fan motor and fan blades are fixed to the top face of the circular-truncated-cone-shaped fan base, and a center light source plate and a circular lampshade are fixed to the bottom face of the circular-truncated-cone-shaped fan base. An annular lifting air guide table, a mounting seat, a control motor, a transmission screw rod and a sliding block body are further arranged; a horn-shaped protruding cylinder is integrally formed on the inner wall of the annular lifting air guide table, and a lifting receding groove hole is formed in the side wall of the horn-shaped protruding cylinder. An annular air outlet is formed between the edge of the circular-truncated-cone-shaped fan base and the inner wall of the horn-shaped protruding cylinder. The mounting seat is fixed on the annular lifting air guide table, and the sliding block body is fixed on the circular-truncated-cone-shaped fan seat and is in threaded connection with the transmission lead screw. The fan is reasonable in structural arrangement, the motor, the transmission lead screw and the sliding block body are controlled to be matched, the circular-truncated-cone-shaped fan base ascends and descends in the horn-shaped protruding cylinder, the size of an air outlet is adjusted, the overall appearance attractiveness can be improved, and the air blowing requirements of different air volumes are met.