156results about How to "Avoid affecting the appearance" patented technology

The utility model discloses an oil injection hanger structure capable of balancing the thickness of an oil injection film. The oil injection hanger structure comprises a bracket body, a lifting hook, a plurality of first hooks and a plurality of second hooks, the support body comprises a frame, a first transverse rod and a second transverse rod, the first transverse rod and the second transverse rod are arranged in parallel in an up-down spaced mode, and the two ends of the first transverse rod and the two ends of the second transverse rod are fixedly connected with the two sides of the frame respectively. The lifting hook is arranged at the central position of the top of the frame; the first baffles and the second baffles are arranged on the two sides of the frame, arranged at intervals up and down and extend forwards, paint is adsorbed through the first baffles and the second baffles, and the situation that the appearance of a product is affected due to oil accumulation caused by the fact that the paint adsorbed by the outer side edge and the sharp corner of the loudspeaker mesh is too thick is avoided; therefore, the film thickness of the paint adsorbed on the speaker mesh is balanced, the yield of the speaker mesh is effectively improved, the subsequent paint removal cost and loss are greatly reduced, and convenience is brought to production operation.

The utility model belongs to the technical field of fire-fighting engineering equipment, and particularly relates to a wireless fire alarm device for fire-fighting engineering, which comprises an alarm body and a mounting base, the alarm body is detachably connected with the mounting base, the alarm body comprises an alarm shell, the top of the alarm shell is provided with a connecting rod, and the connecting rod is connected with the mounting base. A control module is arranged in the alarm shell; the control module is in electric signal connection with a monitoring module, an alarm module, a communication module and a power supply module; the mounting base comprises a mounting shell and a clamping mechanism, the top of the mounting shell is connected with the wall, a cavity is formed in the mounting shell, a first opening is formed in the bottom of the mounting shell, the upper portion of the clamping mechanism is located in the cavity, and the clamping mechanism is detachably connected with the connecting rod. Through the arrangement of the detachable mounting base and the alarm body, quick disassembly and assembly can be achieved, the clamping mechanism is arranged, the disassembly and assembly process is convenient to operate, whether a fire happens or not is monitored in real time through the monitoring module, and the fire site and fire data can be grasped in time.

The invention relates to the technical field of electronic product accessories, and discloses a magnetic type electronic product protection backboard and a hot press molding device thereof, and the magnetic type electronic product protection backboard comprises a protection main board which is formed by laminating and hot-pressing two-layer main boards and at least one middle-layer main board clamped between the two-layer main boards, a plurality of assembling grooves matched with corresponding magnetic attraction structures of the electronic product are formed in one side face of the protection main board in a concave mode, a magnetic attraction part is arranged in each assembling groove, and a cover plate for blocking the assembling groove is arranged in a groove opening of each assembling groove. The assembly groove is formed in the position, corresponding to the magnetic attraction part, of the protection main board, so that the magnetic attraction part and the protection main board do not affect each other during hot pressing, the magnetic attraction part can be installed after the protection main board is subjected to hot pressing forming, the cover plate is used for shielding the magnetic attraction part and preventing the magnetic attraction part from being exposed to affect the appearance, and meanwhile, the magnetic attraction part can be installed on the protection main board. The thickness condition of the protection mainboard can be controlled through the arrangement of the cover plate, the quality of the protection backboard is guaranteed, and meanwhile the manufacturing difficulty is reduced.

The utility model relates to the technical field of high-voltage mutual inductors, and discloses a high-voltage electric mutual inductor capable of improving wire clamping strength, which comprises an electric mutual inductor main body, one side of the electric mutual inductor main body is fixedly connected with an auxiliary mechanism, and the front surface of the electric mutual inductor main body is in threaded connection with a support plate. According to the high-voltage power transformer capable of improving the wire clamping strength, through the arrangement of the driving mechanism, the threaded connecting rods and the fixing mechanism, when the high-voltage power transformer is used, a servo motor is started, the servo motor drives a positive and negative screw rod on one side to rotate, and then the two sets of threaded connecting rods on the surface of the positive and negative screw rod move relatively on the positive and negative screw rod; the lead wire in the middle is clamped and fixed through the two sets of fixing semi-rings at the bottom of the threaded connecting rod and the silica gel semi-ring pads arranged in the fixing semi-rings, secondary reinforcement can be conducted on the clamped lead wire through opposite acting force generated by stress deformation of the supporting springs on the two sides, and the wire clamping strength of equipment is improved.

The utility model relates to the field of rehabilitation of cerebral apoplexy patients, in particular to a multifunctional hospital gown special for turning over and rehabilitation of the cerebral apoplexy patients. The technical problem that in the rehabilitation process of a stroke patient, due to the fact that most patient clothes are single in structure and cannot provide the turning and rehabilitation functions, the investment of rehabilitation nursing personnel is seriously increased is solved. According to the technical scheme, the multifunctional hospital gown special for turning over and rehabilitation of the stroke patient comprises an upper garment body and further comprises a connecting rope, a first connecting band and a fourth connecting band. Through the arrangement of the first connecting belt and the second connecting belt, more time and labor are saved in the rehabilitation nursing process of medical staff, the connecting rope penetrates through the first handle groove and the third handle groove and is tied to a handrail on a sickbed, a patient can be prevented from sleeping flat after turning over, the traction effect is achieved, and the patient can be prevented from falling off. A connecting rope penetrates through the interior of a fourth handle groove in a fourth connecting belt, and the patient can autonomously perform exercise rehabilitation of the lower limbs by pulling the connecting rope.

The invention discloses an alpha-beta light beam scanning device, and belongs to the technical field of light beam scanning, the alpha-beta light beam scanning device comprises two supporting boxes and a connecting box fixed between the two supporting boxes, supporting sleeves are fixed on the surfaces of the two supporting boxes, lifting screw rods are rotatably connected in the supporting sleeves, and guide sleeves are in threaded connection with the outer walls of the lifting screw rods; fixing boxes are fixed to the opposite faces of the two guide sleeves correspondingly, a stepping motor is installed in one fixing box, a protective shell is fixed to the output end of the stepping motor, a scanner is installed in the protective shell, a protective cover is installed on the outer wall of the other fixing box, a linear reciprocating motor is arranged in the protective cover, and the linear reciprocating motor is arranged on the outer wall of the other fixing box. And a workbench of the linear reciprocating motor is provided with two limiting rods and an electric telescopic rod. According to the alpha-beta light beam scanning device, the reconstruction error and image distortion of a scanned image can be reduced, meanwhile, the cable can be conveniently stored, and the cable can stretch out and draw back along with rotation of the protective shell.

The present invention discloses a rotating magnetic buckle structure and a watch, comprising a first connecting part, a first groove is provided on the first connecting part, and an opening is provided on one side of the first groove; the first magnet is a first multi-pole magnet, and the first magnet is rotatably installed in the first groove; the buckle has a first end and a second end, and the buckle is installed in the first groove, the first end corresponds to the opening, and the second end contacts the side of the first magnet, when the first magnet rotates, the side of the first magnet pushes the buckle, and the first end extends out of the opening; the second connecting part is provided with a receiving groove and a buckle-in groove, the receiving groove is adapted to the first connecting part, the buckle-in groove corresponds to the buckle arranged on the side of the receiving groove, the buckle-in groove is adapted to the first end, and a second groove is also provided on the receiving groove; the second magnet is a second multi-pole magnet, and the second magnet is adapted to the second groove. The present invention realizes the automatic buckling of the magnetic buckle by pushing the buckle into the buckle-in groove through the magnetic force of two multi-pole magnets, and the wearing is simple and convenient.

The utility model relates to the technical field of vehicles, in particular to a folding pedal and an electric vehicle. A rotating bracket; the rotating bracket is rotationally connected with the connecting bracket through the connecting pin; the pedal is connected with the rotating bracket; when the pedal is subjected to external force, the pedal and the rotating bracket can rotate by taking the connecting pin as a pivoting shaft so as to be close to or far away from the connecting bracket; and the limiting assembly is arranged on the rotating support, and the limiting assembly can limit the pedal in the unfolded state or the folded state. The folding pedal can be folded and stored, unfolded when needed and folded when not needed, operation is convenient and fast, the folding pedal can be used for a driving position and a sitting position of a two-wheeled electric vehicle, and the situation that the pedal protrudes relative to a vehicle body when the pedal is not needed, attractiveness is affected, space is occupied, and parking is affected is avoided.

The invention discloses a surfacing welding control system, which relates to the technical field of surfacing welding control, and comprises a workpiece scanning unit, a path planning unit, a spacing control unit, a speed control unit and a surfacing welding execution unit; the workpiece scanning unit performs appearance scanning and recognition on the surfacing welding workpiece, obtains seven views of the surfacing welding workpiece and establishes a three-dimensional model of the workpiece, and establishes a workpiece database according to the three-dimensional model and surfacing welding data of the historical surfacing welding workpiece; in this scheme, the surfacing welding surface of the workpiece is scanned and recognized to mark the crack missing parts, and then different surfacing welding methods are used according to different positions on the surfacing welding surface to perform surfacing welding filling and covering, so that the surface of the workpiece after surfacing welding is smoother, which is beneficial to improving the quality of the workpiece after surfacing welding.

The present invention provides a modular ship. The modular ship includes a bottom plate, a ship side box, a ship side protection structure, a traction structure, an assembly structure, a driving structure and a landing structure. The two side walls of the bottom plate are respectively connected to the ship side box; the ship side protection structure, the ship side protection structure is connected to the outside of the ship side box, and the traction structure is connected to the bottom plate. The modular ship provided by the present invention has the advantages of being able to push out and disassemble the floating board, thereby reducing the weight of the entire bottom plate, reducing the gravity of the hull itself, and improving the movement resistance. A hollow is formed between the two ship side protection structures, which allows wind and waves to pass smoothly, reduces the impact of wind and waves, and improves the wind and wave resistance effect. The floating board is dragged between the two ship side boxes, and the two side walls of the floating board are aligned with the long groove, so that it is dragged and installed between the two ship side boxes, so that the ship side boxes are blocked, the contact area with the sea level is increased, and the self-gravity is increased, and the stability is improved.

The application discloses a display stand with good display effect, and relates to the technical field of display stands, which comprises an arc-shaped left side frame, and an arc-shaped right side frame is oppositely arranged on the arc-shaped left side frame. Multidirectional spotlighting is realized through outer arc-shaped light-emitting lamp strips and inner arc-shaped light-emitting lamp strips, the visual effect of shoe display is improved, and conductive wires are hidden and laid through outlet ports and left side inner sleeve U-shaped connecting pieces, so that the appearance is not affected and the electric safety is improved. The lamp strips are seamlessly connected to realize the running light effect, and the arc-shaped side column is internally provided with a reinforcing pipe to guarantee the structural stability.

The utility model discloses a screw of electrical equipment. The screw comprises a nut, a screw rod section and an elastic washer. A tooth-shaped structure is arranged on the inner end face of the nut. The elastic washer is arranged on the screw rod section in a sleeving mode, the elastic washer abuts against the inner end face of the nut, a receding groove for receding the tooth-shaped structure is formed in the elastic washer, and the tooth-shaped structure is hidden in the receding groove. The peripheral edge of the elastic washer extends from the inner end face of the nut so as to be away from the inner end face of the nut in the outward expansion inclination direction, a deformation gap position is formed, the peripheral edge of the elastic washer is separated from the inner end face of the nut, and when the elastic washer is stressed and deformed, the tooth-shaped structure is exposed out of the receding groove. The tooth-shaped structure breaks the insulating layer along with rotation of the nut, so that the grounding wire can be communicated with a metal structure of electrical equipment through the screw, and after the screw is tightened, the elastic washer is tightly pressed on the mounting surface and covers the metal structure broken by the tooth-shaped structure, so that external air is isolated from invading, and oxidation corrosion after long-term use is prevented.

The utility model relates to the technical field of kitchen appliances, and discloses an exhaust fume collecting hood of a range hood, which is provided with an exhaust fume suction port and an exhaust fume collecting cavity, and comprises an exhaust fume collecting hood shell, an exhaust fume collecting hood cover and an exhaust fume collecting hood cover, the opening and closing plate is used for opening or closing the smoke suction port; the opening and closing mechanism comprises a mounting frame and a first connecting rod, the first connecting rod is connected to the mounting frame and the opening and closing plate, the mounting frame is mounted on the lower surface of the top plate and adjacent to the side plate, and a reinforcing structure is arranged between the mounting frame and the side plate. According to the utility model, the opening and closing mechanism is fixed on the top plate, so that the appearance of the product is ensured, the opening and closing mechanism is convenient to install and fix, and the reinforcing structure is arranged near the top plate, so that the reinforcing structure can support and reinforce the top plate, and the bearing capacity of the top plate is improved; the deformation of the top plate caused by the long-term weight effect of the opening and closing mechanism is avoided, and the overall structural strength of the exhaust fume collecting hood and the movement stability of the opening and closing mechanism are guaranteed.

The present invention discloses an artificial crown for maxillary molars, the crown comprising a co-crown restoration, the gingival end of the co-crown restoration being provided with a drainage channel, the drainage channel being used for cleaning the gingival end of the co-crown restoration; in a state of use, a channel is formed between the drainage channel and the gums, both ends of which are connected to the oral cavity. The drainage channel is preferably in a mesiodistal direction; in a state of use, the drainage channel is located between the palatal root and the mesiodistal buccal root, and the proximal and distal ends of the drainage channel are both biased toward the palate. The artificial crown for maxillary molars of the present invention is designed with a drainage channel at the gingival end, which is beneficial to the self-cleaning of teeth, can remove hidden plaque and tartar, control periodontitis, prevent root caries, and improve the long-term efficacy of co-crown restoration after maxillary molar root separation surgery.

This utility model discloses a reciprocating shaver head assembly, including a fixed blade, a rigid support, and a reciprocating moving blade assembly. The fixed blade is mounted on the support and includes a skin-contacting piece located at the top for shaving. The skin-contacting piece is an arc-shaped piece or a flat plate structure from left to right, and fixed blade teeth are provided on the skin-contacting piece. The moving blade assembly includes a moving blade and moving blade teeth that can move in a back-and-forth direction. A rigid support fixing part is provided on the support along the arrangement direction of the fixed blade teeth. The support fixing part is located inside the fixed blade teeth and moving blade teeth. The bottom of the skin-contacting piece is attached to the support fixing part and fixed thereto. By providing a support fixing part inside the fixed blade teeth and moving blade teeth for support and fixing the skin-contacting piece, the skin-contacting piece and the corresponding fixed blade teeth are strengthened. This allows the fixed blade to be manufactured with a thinner material and eliminates the support structure directly below the fixed blade teeth, thereby simplifying the structure and reducing costs while maintaining a clean shave.

The utility model relates to the technical field of jeans rhinestone ironing, in particular to a jeans hot-pressing rhinestone ironing machine which comprises a hydraulic control panel, a hydraulic cylinder, a hydraulic plate, a temperature control panel, a base, a bottom box and a column body, the hydraulic cylinder is vertically installed on the top end face of the bottom box through the column body, and the temperature control panel is fixedly installed at the upper end of the hydraulic cylinder. The hot-pressing and hot-drilling machine comprises a base, the upper end of the base is provided with a hot-pressing panel and a cooling panel, one end of the base is provided with a cooling ventilation opening, the cooling ventilation opening penetrates through the upper wall and the lower wall of the base, and the base is fixedly installed at the upper end of a bottom box. According to the hot-pressing rhinestone ironing machine for the jeans, the split design of the hot-pressing and cooling panel is adopted, cooling is conducted in time after hot pressing, and the phenomenon that the rhinestones fall off due to the fact that hot melt adhesive is not cooled in time can be effectively avoided.

The utility model provides concrete shrinkage experiment equipment, which relates to the technical field of concrete detection and comprises a base, a positioning plate is fixedly mounted on one side of the upper surface of the base, a positioning groove is formed in the surface of one side of the positioning plate, and a right-angle frame is movably arranged on one side of the upper surface of the base. A digital dial indicator is arranged on one side of the upper surface of the right-angle frame, and a bearing plate is fixedly installed in the middle of the upper surface of the base. After a concrete block is detached, a worker starts a first motor to enable the output shaft end of the first motor to drive a threaded rod to rotate, the rotating threaded rod drives a moving plate and a shielding cover to descend in a thread screwing-in mode, and after the shielding cover covers a bearing plate, the worker supplies water into a water spraying pipe, so that the concrete block is sprayed to the water spraying pipe. Cleaning water is sprayed to the surfaces of the bearing plate and the rolling ball through the water spraying pipe, the appearance of equipment is prevented from being affected, and meanwhile deviation of an experimental result is prevented.

This invention discloses a chromium-free passivation and fingerprint-resistant composite treatment method for high-aluminum-zinc-aluminum-magnesium steel plates, belonging to the field of metal sheet surface protection technology. The specific steps of the method are as follows: A fine-grained high-aluminum-zinc-aluminum-magnesium steel plate is selected as the substrate, and firstly, it undergoes multi-stage cleaning and hot air drying. Next, the dried substrate is immersed in a composite chromium-free passivation solution to form a passivation precursor film. Then, a porous inorganic passivation layer is prepared through low-temperature hot air curing. Subsequently, a modified fingerprint-resistant resin is roller-coated onto its surface to form an organic precursor film. Finally, a constant-temperature curing treatment is performed to produce a chromium-free passivation and fingerprint-resistant composite film. This invention uses multi-stage cleaning and chromium-free passivation processes on the high-aluminum-zinc-aluminum-magnesium steel plate to form a porous inorganic passivation layer, enhancing corrosion resistance. Then, a composite protective film layer is constructed by reverse roller coating of modified fingerprint-resistant resin, achieving functional integration. This process improves the environmental protection and protective properties of the plate, meets the needs of multiple fields, and expands the application scenarios and market scope.

The utility model discloses a novel bra. The novel bra comprises a fixing belt, a left cup cover and an anti-moving assembly, a left cup cover and a right cup which are adjustable in distance are detachably arranged on the fixing belt through a fixing assembly, the adjacent ends of the left cup cover and the right cup which are attached to the skin of the human body are each provided with at least one set of anti-moving assembly, and each set of anti-moving assembly comprises an elastic piece, an adhesive layer and a cover body; the upper part of the left cup or the right cup is sunken inwards to form an assembling groove for assembling the elastic piece, and the elastic piece can extend out of the assembling groove and is fixedly provided with an adhesive layer capable of being adhered to the skin of a human body. When a wearer wears the V-shaped low-collar coat, the cups are easy to expose, the wearing comfort is reduced, the attractiveness is affected, and the problem that the cups are easy to shift in the exercise or walking process is solved.

The present invention provides an air outlet mechanism and an air conditioner, wherein the air outlet mechanism includes an air outlet frame and an air guide structure, wherein the air outlet frame includes an air outlet portion and a support member arranged on the air outlet portion, the air outlet portion has an air outlet cavity for discharging air, the support member has a mounting hole and an assembly opening, the assembly opening connects the mounting hole and the outside of the support member, and the assembly opening is arranged toward the inner wall of the air outlet cavity; the air guide structure includes an air guide portion and a rotating shaft arranged on the air guide portion, the rotating shaft is rotatably in the mounting hole, and the assembly opening is used for the rotating shaft to enter or escape from the mounting hole to disassemble and assemble the air guide structure. With the above scheme, the rotating shaft of the air guide structure can be inserted into or removed from the mounting hole through the assembly opening on the support member, thereby facilitating the disassembly of the air guide structure on the air outlet frame. Moreover, the assembly opening is arranged toward the inner wall of the air outlet cavity, so that the assembly opening will not be exposed during the operation of the air outlet mechanism, thereby avoiding the assembly opening being seen by the user and affecting the appearance.

The utility model discloses a multilayer replaceable plastic drop which is characterized in that the multilayer replaceable plastic drop comprises a shell, the shell comprises a light-emitting bin, a display bin and a cover plate which are mutually connected from bottom to top, a light-emitting device is arranged in the light-emitting bin, a pattern plate is arranged in the display bin, the pattern plate and the display bin are detachably installed through a buckle pop-up device, and the cover plate is arranged on the display bin. A placement groove allowing the pattern plate to penetrate is formed in the display bin, the buckle ejection device comprises a push block arranged on the pattern plate and a clamping rod arranged on the inner wall of the display bin, a spring is arranged between the push block and the inner wall of the display bin, a sliding rail is arranged on the push block in the moving direction of the clamping rod, and a clamping block is arranged on one side of the sliding rail; the pattern layer is independently arranged in the display bin through the multi-layer structure, the buckle pop-up device is arranged, replacement is facilitated, product diversity is improved, the influence of external factors on product attractiveness can be reduced, and products are more attractive.

The invention relates to the field of circuit breakers, and particularly discloses a combined circuit breaker which comprises a combined circuit breaker body, a circuit breaker cabling rack is arranged on one side of the combined circuit breaker body, tapping circuit breakers are arranged in the combined circuit breaker body in an array mode, and mounting clamping grooves are formed in the sides, close to the circuit breaker cabling rack, of the tapping circuit breakers. A circuit breaker positioning plug pin is arranged in the mounting clamping groove, a positioning spring is mounted at the lower end of the circuit breaker positioning plug pin and located in the tapping circuit breaker, a butt joint slot is formed in the side, away from the mounting shifting block, of the tapping circuit breaker, and a mounting support is mounted at the outer side end of the circuit breaker cabling rack. A wiring through hole is formed in the position, located in the circuit breaker wiring rack, of one side of the plug pin positioning groove, and cable limiting through pipes are installed in the limiting guide groove in an array mode. According to the circuit breaker cabling rack, the whole circuit breaker cabling rack is arranged to be a U-shaped mechanism, after a connected cable is connected into the circuit breaker, the connected cable can be hidden and stored towards the interior of the cabling rack, and the situation that the appearance is affected due to cable exposure is prevented.

The utility model discloses a mute buffer mechanical keyboard, which relates to the technical field of keyboards and comprises a bottom plate, a plurality of keycaps are fixedly mounted at the top end of the bottom plate, a silica gel pad is fixedly connected to the top end of the bottom plate and located below the keycaps, and a data line is fixedly connected to the front end of the bottom plate. The front end of the data line is fixedly connected with a USB plug, the top of the bottom plate is fixedly provided with a protection structure, the bottom of the bottom plate is fixedly provided with an adjusting structure, and the protection structure comprises two first sliding grooves. According to the mute buffering mechanical keyboard, through the protection structure, the whole mute buffering mechanical keyboard can be protected in the idle or moving process, dust and dirt are prevented from falling on the surface of the mute buffering mechanical keyboard, the appearance of the mute buffering mechanical keyboard is prevented from being affected, and meanwhile the mechanical keyboard is possibly damaged; and meanwhile, property loss caused by damage of the keycap due to external collision is avoided.

The utility model relates to the technical field of archaized building walls, in particular to a wall structure of an archaized building, which comprises a wall base layer, a plurality of archaized wallboards are fixedly connected to the front side of the wall base layer, a plurality of archaized brick joints are arranged on the archaized wallboards, a plurality of nail grooves are arranged in the archaized brick joints, and the nail grooves are fixedly connected with the wall base layer. And the archaized brick joints are filled with joint filling mortar. The perlite heat insulation brick has the advantages that compared with a common clay square brick for pseudo-classic buildings, the perlite heat insulation brick is better in heat insulation performance and higher in shock resistance and compressive strength, the strength and the heat insulation performance of a building wall can be improved, the perlite heat insulation brick can adopt a brick body with a large size, and the clay square brick is small in size and convenient to use. The construction efficiency is higher by adopting the large-size perlite heat insulation bricks, the antique wallboard is arranged on the outer side of the wall base layer, the appearance of an ancient building can be kept while the wall adopts the brick bodies with better heat preservation strength, the coverage area of the antique wallboard is large, and the installation efficiency is higher compared with that of square bricks or connecting brick pieces of the ancient building.

The utility model relates to the technical field of instrument and meter boxes, and discloses a portable multifunctional instrument and meter box with a protection effect, which comprises a main body mechanism and a protection mechanism positioned on the outer side of the main body mechanism. The main body mechanism comprises a portable multifunctional instrument and meter box body, a protective cover, a partition plate, a first partition long plate, a second partition long plate and a first partition bottom plate, the protective cover is movably installed at the upper end of the portable multifunctional instrument and meter box body, and the partition plate is fixedly installed in the portable multifunctional instrument and meter box body; and the first partition long plate is fixedly mounted at the left end of the partition plate. According to the portable multifunctional instrument and meter box with the protection effect, the outer box of the instrument and meter box adopts the gold-containing box body, the inner space is large, multiple instruments can be stored, the instrument and meter box has the advantages of being resistant to mechanical force and portable to carry, the foam reverse mold technology is adopted in the box, different instruments and meters are positioned and stored, and the anti-seismic function is achieved.

The utility model discloses a security device with dust removal function, including security device body, shelter top cover and set up in the lens of security device body front side, shelter top cover is bolted on the security device body upper surface, shelter top cover side is provided with the cleaning assembly for cleaning lens surface dust, and the cleaning assembly includes cleaning brush, extension column and drive module, and the security device body side is provided with dust collection component for collecting lens surface dust, and the cleaning brush is driven along the lens back and forth through drive module, thereby through the cleaning brush processing lens surface dust sweeps down, thereby avoiding lens surface dust too much influence security device body work, and avoiding needing staff regular manual cleaning simultaneously, when cleaning brush sweeps to the lens, part dust falls into dust collection box inside, and simultaneously starting dust collector through dust suction port and part dust are sucked into dust collector inside, thereby avoiding the dust that sweeps down falls to the security device body side and influences beautiful appearance.

The utility model relates to the technical field of drivers, in particular to a high-efficiency strip-shaped driver, which comprises a shell, a main board is arranged in the shell, a driving chip is arranged on the main board, the main board is sleeved by a reinforcing frame, first buffer springs are arranged between two sides of the reinforcing frame and the shell, and the first buffer springs are connected with the driving chip. Four sets of limiting grooves are formed in the bottom end of the shell, and first elastic blocks and second elastic blocks are installed on the limiting grooves correspondingly. According to the device, the whole mainboard is sleeved with a driver through a reinforcing frame piece, so that the whole mainboard is protected, the driver is matched with a first buffer spring and a buffer plate at the two ends to conduct buffer protection on the mainboard, and the two ends of a limiting groove in the bottom end of a shell are buckled to limiting grooves in a first elastic block and a second elastic block through connecting wires correspondingly; limiting of the connecting line is achieved, and potential safety hazards are prevented while the connecting line is prevented from being too long to affect attractiveness.

The utility model relates to the technical field of metal plate protection, and discloses an adjustable metal plate protective cover which comprises a V-shaped ceiling. According to the adjustable metal plate protective cover, through the arrangement of the dust removing mechanism and the cooling mechanism, when a large amount of dust is accumulated on the top face of the V-shaped ceiling, an electric telescopic rod is started, the electric telescopic rod drives a push plate to push towards one side, the dust falls onto the ground, and the situation that the appearance of the device is affected due to the fact that the dust accumulated on the top of the device is gradually increased is avoided; water is poured into the water tank through the water opening formed in the top of the water tank, the water pump is started, the water pump conveys the water in the water tank into the spraying head, the spraying head sprays mist-shaped water, then the fan is started, the fan drives the mist-shaped water to rotate at a high speed, air blown out by the fan carries water mist, and the humidity of the air in the device is increased; heat generated by equipment is effectively dissipated, the temperature of the equipment is reduced, and the service life of the equipment is prolonged.

The utility model provides a screw propelling mechanism, and relates to the technical field of rotational molding. The screw propelling mechanism provided by the utility model can be applied to a rotational molding mold, and comprises a screw sleeve, a limiting sleeve and a propelling screw, wherein the screw sleeve is inserted into a through hole of the rotational molding mold; the limiting sleeve is coaxially and fixedly connected with the screw sleeve; and after penetrating through the limiting sleeve, the propelling screw rod can rotate and move along the internal thread of the thread sleeve. During use, the propelling screw rod is screwed out firstly, and then after the end part of a rotational molding product is plasticized and molded but is not cured, the propelling screw rod is screwed in and fully extruded, so that the plastic molded in the screw sleeve is extruded into the mold main body, the plastic at the corresponding position is in a solid state, and poor molding and influence on the appearance are avoided.