292results about How to "Improve waterproof and dustproof performance" patented technology

The biped robot comprises a main body connecting part and leg parts arranged on the two sides of the main body connecting part, and each leg part comprises a thigh part, a shank part, a sole assembly and a connecting rod assembly used for connection which are sequentially connected; the thigh part comprises a thigh rotating joint, a thigh lifting linear joint, a shank bending linear joint and a thigh supporting plate, the thigh lifting linear joint and the shank bending linear joint are linear actuators and are oppositely arranged, and the two ends of the thigh lifting linear joint and the two ends of the shank bending linear joint are rotationally installed; the shank part comprises an ankle linear joint and a shank supporting plate, the upper end of the ankle linear joint is rotatably connected with the shank supporting plate, and the lower end of the ankle linear joint is connected with the sole assembly. The method has the beneficial effects that the load capacity of the biped robot is improved, and the requirements of the biped robot for large load, high response speed and high precision can be met.

The utility model provides a mobile explosion-proof camera device with talkback and light supplement functions, and belongs to the field of explosion-proof camera shooting. The problems of video recording and voice transmission in a flammable and explosive environment are solved. One end of the connector screw rod assembly is in sealed connection with an anti-explosion flashlight assembly, the other end of the connector screw rod assembly is in sealed connection with an anti-explosion camera and loudspeaker assembly, a light-emitting lamp wick and a reed pipe are arranged in the anti-explosion flashlight assembly, and the reed pipe is used for controlling connection or disconnection of a power supply circuit of the light-emitting lamp wick; a pickup assembly; an opening in one end of the cable leading-in assembly is connected with the explosion-proof camera and the loudspeaker assembly in a sealed mode, a rubber plug is arranged in an opening in the other end of the cable leading-in assembly, and the rubber plug is used for leading a cable into the explosion-proof camera and the loudspeaker assembly and keeping the explosion-proof camera and the loudspeaker assembly sealed. The device is mainly used for monitoring flammable and explosive environments.

The utility model provides a self-locking normally-open and normally-closed button switch with a reset function, and belongs to the technical field of electric switches. The switch comprises a housing, a button, a self-locking assembly, a moving support, a pedestal, a moving contact, a static contact, an indicating lamp and a first spring, the self-locking assembly is arranged between the button and the moving support, the moving contact is arranged on the moving support, and the static contact is fixed on the pedestal; the self-locking assembly comprises a driving tooth, a limiting tooth and a transmission wheel, and a convex tooth structure is arranged on the periphery of the transmission wheel; the moving contacts comprise a group of first moving contacts and a group of second moving contacts, the static contacts comprise a group of first static contacts and a group of second static contacts, the first moving contacts are in contact with the first static contacts in a normal state, and the second moving contacts are separated from the second static contacts at the same time; the button is pressed downwards to drive the movable support to move downwards, so that the first movable contact is separated from the second movable contact, and meanwhile, the second movable contact is in contact with the second static contact. The button switch has sealing and waterproof performance, has a light indication function, and is stable in use performance.

The invention provides a pedestrian warning device for a vehicle, and belongs to the technical field of vehicle parts, the pedestrian warning device comprises a shell assembly, the shell assembly comprises an upper shell and a lower shell, the surface of the upper shell is provided with a plurality of openings, and the lower shell is internally provided with a containing cavity; the edge of the upper shell protrudes towards the periphery to form an upper flange part, the edge of the lower shell protrudes towards the periphery to form a lower flange part, and the upper flange part and the lower flange part are in butt joint and are fixedly connected through a plurality of first screws; the loudspeaker is fixedly installed in the upper shell and divides the space in the upper shell into a first cavity and a second cavity, the first cavity and the second cavity are isolated, the opening is communicated with the first cavity, and the second cavity is communicated with the containing cavity. The device has the advantages that the upper shell and the lower shell are combined, sealing connection is conducted through the flange part, the whole device is more compact, good waterproof and dustproof performance is provided, internal electronic elements are protected against the influence of the external environment, and the service life is prolonged.

The charging port cover electromagnetic lock device suitable for the new energy automobile comprises a charging port box and a charging port cover capable of rotating around a hinge line, a permanent magnet assembly is installed at the front end, and an electromagnetic assembly is arranged on the charging port box. When power is not on, the permanent magnet assembly and the electromagnetic assembly are attracted, and the charging port cover is kept closed. During electrification, the electromagnetic assembly generates a magnetic field which repels the permanent magnet assembly, so that the charging port cover is opened. The charging port box is further provided with a protective cover, a filling groove is formed in the rear end of the protective cover, and the electromagnetic assembly is connected with the containing groove through the terminal interface. And an over-current protector element is arranged in the accommodating groove and is used for heat conduction. And a conduction wire group connected with an external power supply is arranged in the filling groove and is connected in series with the over-current protector element, the terminal interface and the electromagnetic assembly. The resistance of heat generated when the electromagnetic assembly is electrified is increased through the overcurrent protector element, the current intensity is reduced, and heating is reduced. The filling groove is filled with liquefied epoxy resin, and the electromagnetic assembly and the electric connection part thereof are sealed after solidification.

The utility model discloses an internal circulation type air cooling power supply, which comprises a shell, a heat exchange assembly, a power module and a heat dissipation fan, and is characterized in that the shell is provided with a closed inner cavity and a heat conduction wall, the heat conduction wall forms the cavity wall of the closed inner cavity, and the closed inner cavity is internally provided with a first heat exchange air duct; the heat exchange assembly comprises a first heat exchange part and a second heat exchange part, the second heat exchange part is in heat conduction connection with the heat conduction wall and forms a second heat exchange air duct, the second heat exchange air duct communicates with the first heat exchange air duct, and the first heat exchange part is in heat conduction connection with the heat conduction wall; the power module forms a heat dissipation air duct, one end of the heat dissipation air duct communicates with the first heat exchange air duct, the other end communicates with one end, away from the first heat exchange air duct, of the second heat exchange air duct, and the heat dissipation air duct, the first heat exchange air duct and the second heat exchange air duct form a circulating air duct; the cooling fan is used for driving airflow to circularly flow along the circulating air duct. According to the technical scheme of the utility model, the internal circulation type air-cooled power supply can realize heat dissipation and improve the waterproof performance at the same time.

The invention provides a high-shielding type intelligent automobile Ethernet connector, and belongs to the technical field of connecting devices.The high-shielding type intelligent automobile Ethernet connector comprises a connecting base, a connecting plug and a sleeve shielding assembly, and butt joint of the connecting plug and the connecting base is locked through a buckle assembly; the sleeve shielding assembly comprises a first shielding block, a first shielding cylinder, a second shielding cylinder, a second shielding block, a first spring, a clamping block and a hook-shaped clamping groove, one end of the second shielding cylinder extends into the first shielding cylinder, the first shielding block is fixedly connected to the inner wall of the first shielding cylinder, and one end of the first shielding block abuts against the first spring; the other end of the first spring abuts against the end portion, extending into the first shielding cylinder, of the second shielding cylinder, and rebounding of the first spring enables the clamping block to be clamped into the locking portion of the hook-shaped clamping groove to complete butt joint of the first shielding cylinder and the second shielding cylinder. By using the device, the problems that when a traditional connector is connected with a socket, gaps exist, electromagnetic interference is caused, and signal transmission is affected are solved.

The utility model relates to the technical field of automobile battery replacement, and discloses a self-resetting shielding device, which comprises a cover plate (1) provided with a cover plate hole (11), a telescopic plate (3) matched with the cover plate hole (11), and a torsion spring (4) mounted on the cover plate (1), and the working end of the torsion spring (4) is in contact with the telescopic plate (3) and pushes the telescopic plate (3) to be pressed on the cover plate hole (11). According to the utility model, the battery replacement time is shortened, and the practicability is improved; the dustproof and waterproof effects are good, and the structure of the cover plate can effectively prevent silt from gathering; the shielding cover plate structure is not easy to be blocked by the driving piece; the device is simple in structure, more economical and more efficient.

The utility model is suitable for the technical field of electro-tricycle accessories, and provides a hidden line type electro-tricycle fender which comprises a fender body provided with a lamp groove. The steering lamp is arranged on the inner wall of the lamp groove; the lampshade is assembled and mounted on the lamp groove; the wire groove is formed in the inner side of the fender body; the wire is arranged on the wire slot and is connected with the steering lamp; and the cleaning mechanism is arranged on the fender body and is used for cleaning the lampshade. According to the hidden wire type fender of the electro-tricycle, the wire can be hidden, and the function of cleaning the lampshade is achieved, so that the situation that mud splashed to the lampshade shields light rays of a steering lamp is avoided.

The embodiment of the utility model provides a buckling assembly and a helmet. The buckling assembly comprises a female plug part which is provided with an insertion hole and a first matching structure formed in the insertion hole; the male plug component comprises a first shell, a second shell, an external insertion part formed on at least one of the first shell and the second shell and a second matching structure formed on the external insertion part, and the first shell and the second shell are buckled to define an internal accommodating space; and the detection assembly is arranged in the internal accommodating space and comprises a circuit board and a switch part coupled to the circuit board, and the switch part is arranged to be triggered after the external insertion part is inserted into the insertion hole to enable the first matching structure and the second matching structure to be matched in place. By adopting the design that the first shell and the second shell are buckled, and the circuit board and the battery are overlapped, the size space can be compressed to the maximum extent, so that the compactness of the buckling assembly is facilitated, and the size of the buckling assembly is effectively reduced.

The utility model discloses an electric actuator and car, including the casing, drive motor, screw rod and push rod. Drive motor is housed in the casing, and drive screw rod rotation. Push rod is equipped with internal thread and is engaged with the external thread of screw rod. Through the rotation -stopping structure of setting between push rod and casing, the circumferential rotation of push rod is restricted, makes it only can carry out axial linear motion under the drive of screw rod to realize the extension or retraction. The utility model discloses compact structure, and transmission efficiency is high, and through the sealing structure on the casing has good dustproof waterproof performance, and assembly is simple and reliable. The actuator can be widely applied to various equipment that need linear drive.

This utility model belongs to the field of laboratory animal technology and discloses a highly flexible self-propelled electric lifting vehicle suitable for SPF barrier environments. It includes a frame with a sealed cavity inside, a modular integrated electrical box within the cavity, a quick-release structure at the opening of the cavity, a lifting assembly on the frame, a liftable worktable on the lifting assembly, a waterproof structure on the worktable, and a walking drive assembly at the bottom of the frame. The quick-release structure includes a quick-release movable plate and multiple sets of bolts. The walking drive assembly includes a first drive wheel, a second drive wheel, and two sets of driven omnidirectional wheels. This utility model has a compact and reasonable structural design, enabling lifting and driving functions. It is suitable for assisting in the rearing of laboratory animals in high-rise buildings. It is small in size, highly mobile, and easy to move between rearing cages. The main circuit components are integrated, making it less susceptible to contamination. It has good waterproof and dustproof performance, is easy to maintain, and convenient to use.

The utility model discloses a high-strength sealed bearing which comprises an outer ring and steel balls, and the steel balls are mounted in the outer ring. The bearing further comprises a retainer which is annularly arranged on the outer side of the steel ball in a sleeving mode, dustproof covers are installed at the left end and the right end of the retainer, sealing blocks are arranged at the upper end and the lower end of each dustproof cover, sealing layers are installed in the dustproof covers, bolts are installed on the outer side of the retainer, and an inner ring is installed on the inner side of the steel ball. A lubricating oil groove is formed in the inner ring, a blocking net is installed at the outer end of the lubricating oil groove, a through groove is formed in the outer end of the blocking net, the steel balls are connected in the retainer in a clamping sleeve mode, and the steel balls are distributed at equal angles relative to the central axis of the inner ring. The high-strength sealed bearing is convenient for reducing frictional resistance and increasing transmission efficiency, is good in sealing effect, is convenient for preventing water and dust, effectively prolongs the service life of the bearing, and is convenient for realizing automatic lubrication of a device through volatilization.

The utility model relates to vehicle sensor technical field, and disclose a kind of vehicle over-the-horizon obstacle detection device. Including vehicle body, it is characterized in that, still include: fixed mounting frame, radar signal processing module, millimeter wave radar, the vehicle body bottom is fixedly installed with fixed mounting frame, the inboard of fixed mounting frame is fixedly installed with radar signal processing module, the inboard of fixed mounting frame is fixedly installed with millimeter wave radar, the fixed mounting frame contains frame main body, the frame main body both sides symmetry fixed mounting have steerable wide-angle camera, the steerable wide-angle camera, one end fixed mounting have evenly distributed fifteen mounting frame door, it is favorable to provide impact resistance and anti-deformation mechanical protection, ensure the security of internal precision component under bad road condition, and the mounting frame door installed thereon uses quick release design to facilitate maintenance replacement.

The present invention provides a waterproof and dustproof humanoid robot actuator, which relates to the technical field of humanoid robots and comprises a support arm, wherein the support arm comprises a support base, a rotating base is longitudinally and rotatably installed on the top of the support base, a driving assembly is fixedly installed between the support base and the rotating base, a hollow dustproof tube is fixedly installed on the bottom of the rotating base, the hollow dustproof tube is nested in the outer wall of the support base and rotatably cooperates with the support base, a fine tube filter screen formed by arranging fine tubes is fixedly installed on the bottom of the hollow dustproof tube, and drainage holes are arranged on the fine tube filter screen. The fine tube filter screen and the fine tube filter screen frame of the present invention can effectively block dust and water flow in a smaller occupied space through the filter screen composed of fine tubes, thereby improving the waterproof and dustproof effect of the actuator; the present invention can prevent the movable arm from getting out of control during operation and reduce operation accidents through the auxiliary driving slider and the driving screw.

This utility model discloses a smartwatch with a replaceable watch band function, including a smartwatch body and a watch band mounting base. Slots are provided on both sides of the smartwatch body, and the watch band mounting base is installed in the slots via a plug-in structure and positioned by a positioning structure, thereby achieving the installation of the watch band mounting base. One slot is provided with a SIM card slot. When the SIM card is installed, the watch band mounting base covers the SIM card slot, eliminating the need for a separate slot on the outer frame of the smartwatch body. This utility model places the SIM card slot in a slot below the watch band mounting base, and after installation, it is completely covered by the watch band mounting base. This eliminates the need for a separate slot on the outer frame of the smartwatch body for the SIM card, ensuring the integrity and aesthetics of the watch case, and may also help improve the device's waterproof and dustproof performance.

The application relates to the battery technical field and provides a control device, a thermal management system and energy storage equipment. The thermal management system comprises a control device, a refrigerant unit and a heat exchange unit. Heat exchange fluid in a heat exchange flow path can exchange heat with refrigerant in a refrigerant flow path. The control device comprises a box body, a control module and a heat exchange structure. The box body forms a placing cavity and an assembly opening. The assembly opening is communicated with the placing cavity. The control module is arranged in the placing cavity. The heat exchange structure seals the assembly opening. The heat exchange structure comprises a fluid channel. The fluid channel is communicated with the heat exchange flow path. The heat exchange flow path is used for heat exchange with a battery monomer. Heat exchange fluid in the heat exchange flow path can flow through the fluid channel, so that the heat exchange fluid exchanges heat with the control module, and the control module is cooled or heated. The heat exchange structure seals the assembly opening. The heat exchange structure can occupy as little space as possible in the placing cavity.

The utility model relates to the technical field of passenger flow analysis, in particular to a passenger flow data collection terminal, which comprises a mainboard fixedly arranged on a bottom cover and used for collecting and processing passenger flow data. The two camera devices are fixedly arranged at the two ends of the same side of the main board and are in communication connection with the main board; the infrared lamp panel is attached and fixed to the inner bottom face of a sinking groove formed in the middle of the top cover and electrically connected with the main board, indicator lamp holes are formed in one side edge of the top cover, and indicator lamps on the infrared lamp panel are correspondingly embedded in the indicator lamp holes; the sound label is fixedly embedded in a sound label hole formed in the other side edge of the top cover and is electrically connected with the main board; all the parts are integrated on the same mainboard, so that the size of the passenger flow data collection terminal is reduced.

A luggage with aluminum frame opening and closing structure, including first box shell, second box shell, aluminum frame assembly, aluminum frame assembly includes first aluminum frame, second aluminum frame, sealing strip and several fixed parts, sealing strip is installed in second aluminum frame, first aluminum frame includes first surrounding section, connecting section and first matching section, connecting section is connected with first surrounding section and first matching section along height direction two sides respectively, first matching section is equipped with the clamp; Second aluminum frame includes second surrounding section, second matching section, second matching section is equipped with matching groove and fixed groove, fixed groove extends from the end face of second matching section away from second surrounding section to the inside, fixed groove is arranged at the inside position of matching groove, sealing strip is clamped on the fixed groove of second aluminum groove, when the first box shell cover is arranged on the second box shell, the clamp of first aluminum frame extends into the sealing strip fixed on the fixed groove from the matching groove of second aluminum frame and is pressed tightly. The utility model improves the waterproof and dustproof performance of the luggage, and has strong practicality.

The invention belongs to the technical field of medical instruments, and discloses a dual-mode defibrillation electrode and a mode switching method.The defibrillation electrode comprises a defibrillation electrode circuit board and a defibrillation discharging interface, and the defibrillation electrode circuit board is connected with a multifunctional communication interface, a mode switching switch and a mode indicating lamp; a single-chip microcomputer control unit is integrated in the defibrillation electrode circuit board, and one interface of the multifunctional communication interface is electrically connected with the single-chip microcomputer control unit. The mode change-over switch is electrically connected with the single-chip microcomputer control unit, and the mode indicating lamp is electrically connected with the single-chip microcomputer control unit. Identification of different modes is designed into the defibrillation electrode connector and is integrated with the defibrillation electrode, a toggle switch or a key does not need to be arranged on a defibrillator host, misoperation is avoided, a host shell structure is prevented from being damaged, interfaces of the host are reduced, information of the defibrillation electrode can be stored, and the validity period of the defibrillation electrode can be read.

The present invention provides a self-sealed yarn state monitor, comprising: a transparent key plate, a front shell, a display screen, a display screen fixing plate, a circuit board and a rear shell; the front shell and the rear shell form a sealed cover shell; the circuit board is installed in the cover shell; the front shell is provided with a mounting hole, the display screen is installed in the display screen fixing plate, and the display screen fixing plate is installed in the mounting hole; the transparent key plate is installed on the outer surface of the front shell; baffles are provided on the upper and lower sides of the display screen fixing plate. The display screen of the present invention is fixed to the front shell through the display screen fixing plate, and small baffles are provided on the upper and lower sides of the display screen fixing plate, which can better fix the display screen and make the display screen more secure and fit more closely when installed; the design of the display screen fixing plate eliminates the friction between the display screen and the circuit board, and increases the service life of the display screen and the circuit board.

The invention provides a fastening connection device for a cable interface of an electric energy meter, which is characterized in that a plurality of current-conducting plates are arranged in a shell of the electric energy meter, a fixing column is arranged at the upper end of each current-conducting plate, the top end of each fixing column is sleeved with a fastening bolt, a pressing piece is fixed on each fixing column through each fastening bolt, and a fixing column pin is embedded in the upper part of each fixing column; the lower side of the current-conducting plate is provided with a wiring terminal, the current-conducting plate and the wiring terminal are locked by the fastening bolt, and the wiring terminal is connected with a corresponding cable through a cold-pressed terminal arranged on the wiring terminal. According to the invention, the stability and reliability of multi-cable connection are improved, the mounting and dismounting processes of cable interfaces are simplified, and the waterproof and dustproof performance of the whole device is improved.

The invention discloses a portable computing unit system with a novel interface and an implementation method, the system is composed of a portable computing unit and a base, the portable computing unit comprises a CPU, an internal memory, a non-loss storage module, a startup and shutdown circuit, a signal coding synthesis module and the novel interface connected with the base, the base comprises a power supply interface, a USB interface, a display interface, an audio interface, a signal decoding and separating module and a novel interface connected with the portable computing unit. The novel interface comprises a two-core power supply channel and a bidirectional optical transmission high-speed data channel. According to the scheme, the novel interface is used for reducing the number of electric contact points, reducing the equipment failure rate, achieving waterproof and dustproof effects, being easy to clean and maintain, improving the reliability and maintainability of the equipment, adopting a mode that the equipment can normally work by aligning and approaching, and being higher in durability and longer in service life.

The present invention discloses a padlock structure and an assembly method, wherein the padlock structure comprises a lock shell, an inner liner, and a lock hook; the bottom of the lock shell is provided with an opening for connecting with the inner liner, the top of the lock shell is provided with a through hole and a countersunk hole, the long arm end of the lock hook passes through the through hole to connect with the inner liner, and the short arm end of the lock hook is connected with the countersunk hole. The present invention is simple and firm to assemble, and at the same time, the padlock has an appearance integrity, no joints, no pin holes, and the product is more stable and reliable. The waterproof and dustproof effect of the padlock is improved by assembling a special-shaped sealing ring, an annular sealing ring, and a bottom waterproof ring, and the padlock is highly practical.

The utility model belongs to bridge construction, and discloses a bridge expansion joint filling structure and a bridge expansion joint structure thereof.The bridge expansion joint filling structure comprises a foam strip, the foam strip comprises a foam strip upper portion and a foam strip lower portion, and the longitudinal section of the foam strip lower portion is of a semicircular structure protruding downwards; the maximum width of the foam strip lower part is larger than that of the foam strip upper part, so that step structures are respectively formed between the foam strip lower part and the left side of the foam strip upper part and between the foam strip lower part and the right side of the foam strip upper part. The structure is simple and convenient to construct, traffic can be opened by fixing the foam strips, the road occupation time is short, the difficult problems of broken stone seam clamping, impurity deposition and the like are completely eradicated, and the structure has remarkable advantages in the aspects of construction cost, maintenance cost, service life and the like.

The invention relates to a sealed vacuum circuit breaker convenient to overhaul and maintain, which comprises a conductive loop, an insulation system, a sealing element and a shell, and is characterized in that the shell comprises a cabinet body, a front door, a rear door, a left side door and a right side door, and the front surface, the back surface and the two opposite side surfaces of the cabinet body are respectively provided with an access hole; the front door and the rear door are movably hinged to the front side and the rear side of the cabinet body respectively. The conductive loop part of the vacuum circuit breaker is integrally accommodated in the cabinet body, and the cabinet body is provided with the front door, the rear door, the left side door and the right side door, so that the vacuum circuit breaker is convenient for workers to overhaul and maintain in the installation and use process; in addition, the front door, the rear door, the left side door and the right side door are in sealed connection with the cabinet body through rubber inflatable sealing rings, so that the vacuum circuit breaker has good waterproof and dustproof capabilities in the installation and use process, and the use safety of the vacuum circuit breaker is improved.

The utility model relates to the technical field of stage lamps, in particular to a stage lamp with a case provided with an integrated rotating shaft, which comprises a lamp holder used for generating light beams, a supporting arm used for supporting the lamp holder to rotate and a bottom case used for supporting the supporting arm to rotate. The bottom case comprises a top plate, a bottom base plate and side plates which are supported between the top plate and the bottom base plate and jointly define a cavity, and the supporting arms and the bottom case are in pivot joint through rotating assemblies. The rotating assembly comprises a shaft sleeve and a pivoting shaft which are pivoted with each other; wherein the shaft sleeve is fixedly arranged on the supporting arm; and the pivoting shaft is integrally formed on the top plate of the bottom case. According to the stage lamp with the integrated rotating shaft case, the connection strength and the structural stability of a pivoting structure of the bottom case of the stage lamp can be improved, the internal space layout of the bottom case of the stage lamp can be optimized, and the waterproof performance of the bottom case can be improved.

The utility model relates to ring net case technical field, concretely is a kind of high heat dissipation primary-secondary fusion ring net case, including box, the one end of box is fixedly installed with installation frame, the inside fixed mounting of installation frame is equipped with dust frame, the end of dust frame is equipped with multiple heat dissipation channels, the both sides of multiple heat dissipation channels are fixedly installed with multiple evenly distributed baffle, the side of dust frame away from multiple heat dissipation channels is provided with dust screen, the bottom rotation of dust frame side close to dust screen is installed with installation shaft, the outside fixed sleeve of installation shaft is equipped with bottom plate, the outside of installation shaft is provided with positioning mechanism.The utility model has the beneficial effects of not needing staff to frequently clean dust screen, multiple heat dissipation channels can be in the state of high-efficiency heat dissipation for a long time, and the labyrinth heat dissipation mode can prevent water from entering the box interior, so that dust frame has better dustproof and waterproof effect simultaneously.

The lamp comprises a lampshade and a lamp shell which are connected in a sealed mode, one side of the lamp shell is provided with an installation hole and provided with a light guide plate in an inserted mode, the light guide plate comprises a black piece and a white piece which are connected into an integrated structure, and the white piece is engraved with patterns and inserted into the lamp shell. The black sheet covers the opening of the mounting hole and is assembled and connected with the lamp shell; a light-emitting module is further arranged in the lamp shell and used for emitting light to lighten the white piece and present patterns on the white piece. According to the utility model, the light guide plate is split into a plurality of parts, one of the parts is engraved with the pattern, and the other parts are assembled with the lamp housing, so that the light guide plate can be independently disassembled relative to the lamp housing, and a user can independently disassemble and replace the light guide plate without disassembling the lampshade and the lamp housing; the influence of disassembly and assembly of the light guide plate on the lighting effect of the lamp is avoided, and meanwhile, a single part is convenient to replace and low in cost.