48results about How to "Safe and reliable structure" patented technology

The utility model discloses a quick plugging suite in the field of connectors, which comprises a module end plug and a plurality of detection end plugs, and each detection end plug is provided with a different number of connection ports; the plurality of detection end plugs are connected with the module end plugs in a matching manner; wherein the module end plug and each detection end plug can be plugged and fixed, a lock catch is arranged on the module end plug, a locking piece is arranged on each detection end plug, the module end plug and the detection end plug are fixed, and the lock catch is matched with the locking piece to be used for retaining the module end plug and the detection end plug; the detection end plug is matched with the plurality of module end plugs, a single detection end plug can be fixedly installed with the plurality of module end plugs, signal access of detection devices of different wiring systems to the PLC analog quantity input module can be met, program modification and wire changing are not needed when different types of detection devices are replaced, and the detection efficiency is improved. And the misoperation risk in the equipment maintenance working process is reduced.

The utility model discloses a prefabricated truss concrete structure assembly type fence and sound insulation wall. The prefabricated truss concrete structure assembly type fence and sound insulation wall comprises a plurality of truss concrete wall column units prefabricated in a factory and a plurality of truss concrete wall plate units prefabricated in the factory and arranged between the adjacent truss concrete wall column units. Each truss concrete wall plate unit comprises a concrete plate and a plurality of connecting plates I, a plurality of sound insulation quantity reduction holes are formed in each unit at intervals, and the upper end and the lower end of each truss concrete wall plate unit are further provided with a water retaining upper rabbet and a water flooding lower rabbet respectively. A wallboard steel truss and an anti-crack steel mesh are arranged in the concrete slab, and the connecting plate I is installed on the wallboard steel truss. The truss concrete wall column unit comprises a concrete column and a plurality of connecting plates II, a wall column steel truss and an anti-crack steel mesh are arranged in the concrete column, and the connecting plates II are mounted on the wall column steel truss. The wall plate units and the wall column units are connected through connecting plates. The assembling degree is high, the structure is safe, and parts can be directly detached, can be partially replaced and can be repeatedly used.

The application discloses a magneto, which comprises a shell, a magnetic core, a spring, a shear plate, a shear pin and a coil; the magnetic core is arranged in the shell; the spring is arranged between the magnetic core and the shell, and the lower end of the spring is abutted against the inner side surface of the shell; the shear plate and the guide cylinder are sleeved on the outer side surface of the magnetic core, and the upper end of the spring is abutted against the bottom of the shear plate; the shear pin is arranged on the shear plate and is inserted into the magnetic core; the magnetic core is cut off from the shear pin when moving downwards in the shear plate; the bottom of the shell is provided with the coil; the magnetic core enters the coil after being cut off from the shear pin, so that the coil generates an induced voltage. The magneto of the application can cut off the shear pin under the condition of low acceleration and long duration, and the magnetic core can pass through the coil under the guidance of the guide cylinder to generate an induced voltage, so that the purpose of triggering the magneto is achieved; the structure of the magneto is safe and reliable; the magneto is low in cost and can be triggered under specific conditions.

The invention discloses a structure for a joint of a road underpass and a rear opening of an existing underground structure, which comprises the existing underground structure, and the rear opening is formed in the side wall of the existing underground structure; the protective ring beam is poured on the outer side of the side wall, the protective ring beam is arranged in a circle in the circumferential direction of the rear opening, and a rubber water stop strip is embedded in a construction joint between the side, facing the side wall, of the protective ring beam and the existing underground structure; the road underpass channel is coaxially arranged on the other side, away from the side wall, of the protective ring beam, and a deformation joint is formed between the road underpass channel and the other side of the protective ring beam; and the water stop belt is arranged in the deformation joint, and the two opposite sides of the water stop belt are buried in the road underpass channel and the protective ring beam correspondingly. The problem that the waterproof effect is poor when the rear opening is connected under the condition of asynchronous construction of the road underpass and the existing underground structure is solved.

The utility model relates to a kind of high-altitude temporary welding platform of large-span pipe truss steel structure, including main support structure, suspension box body;Main support structure has a platform, and the platform both sides extend a suspension box body downwards;Platform includes several two first channel steels arranged in parallel along transverse direction, the second channel steel of multiple frames is arranged on the top of first channel steel along longitudinal direction, longitudinal support rod and first grid plate laid on the upper portion of multiple longitudinal support rods in transverse direction;Suspension box body is provided with the step that can be climbed to platform upwards;The transverse inner side of the top of suspension box body is immediately adjacent to the truss top chord pipe needing to be welded.This utility model utilizes the platform formed by the pair of top chord pipe of pipe truss steel structure, which is the same height or close to height, to provide reliable support for the platform of main support structure, so as to realize the walking function of personnel from the top of platform, and in the process of welding operation, it can be conveniently moved to the opposite side, thereby improving the efficiency of welding operation in the lengthening direction of top chord pipe.

The application discloses a novel connecting structure for large-span steel-bamboo buildings, and belongs to the technical field of large-span buildings. The connecting structure comprises a supporting body which is formed by mutually splicing a plurality of connecting units, long steel-bamboo poles are connected to the periphery of the supporting body, a central lifting point is arranged directly above the supporting body, and a plurality of lifting pieces are connected between the supporting body and the central lifting point. The connecting unit comprises a plurality of short steel-bamboo poles which are in equal-angle radial distribution and are connected at the ends, and the ends of the short steel-bamboo poles are fixed through connecting nodes. Two adjacent connecting units are connected through the connecting nodes or through a shared short steel-bamboo pole. The novel connecting structure for large-span steel-bamboo buildings fully utilizes the initial vertical form of natural steel bamboo, and combines the novel connecting node to form a novel building structure system, which is characterized by low cost, structural safety and building aesthetics, and can be used for large-span steel-bamboo buildings.

The invention relates to a QEC (Quality Error Correction) maintenance safety supervision method and system based on AR (Augmented Reality). According to the method, after a maintenance general task is generated, the maintenance general task is decomposed into a plurality of sub-tasks and sent to pre-obtained online AR equipment, and a maintenance piece where each sub-task is located and a target model are obtained; obtaining an associated sub-task set according to the maintenance piece associated sub-tasks; when the current sub-task is executed, acquiring a marked sub-task from the associated sub-task set of the current sub-task; acquiring a real-time model of a maintenance piece where the marked sub-task is located, and executing the next sub-task if the real-time model meets a first preset condition before and after the current sub-task is executed; if the real-time models of the maintenance pieces where all the sub-tasks are located in the current associated sub-task set meet a second preset condition, the associated sub-task set is qualified; and when the completion time of all the sub-tasks and the total task real-time model meet a third preset condition, the maintenance total task is qualified. Compared with the prior art, the method has the advantages of improving data analysis efficiency and accuracy in QEC maintenance work and the like.

The invention provides an offshore wind power pile foundation design method considering a pile sinking effect and soil response, and relates to the technical field of offshore wind power engineering.The method comprises the steps that the marine environment of a target sea area, a fan structure and initial pile foundation design parameters are obtained; pile sinking disturbance factors are calculated based on the parameters, and then actual mechanical parameter distribution of the soil body after pile sinking is determined; calculating a coupling response coefficient based on the distribution, and correcting a pile-soil interaction model according to the coupling response coefficient; carrying out dynamic response analysis on the pile foundation under long-term cyclic loading by utilizing the corrected model, and calculating the displacement, the internal force and the accumulated rotating angle of the pile foundation; and comparing and checking a calculation result with a design allowable value, and obtaining a final design scheme through iterative optimization. According to the method, coupling analysis of the pile sinking effect and the power response in the service period is achieved, and the safety and economical efficiency of design are improved.

A hole filling device for a road coring hole comprises an annular cylinder, an outer cylinder and an inner cylinder, a circular truncated cone is arranged at the bottom of the inner cylinder, and a ball is arranged at the top of the circular truncated cone; the rotary adjusting assembly comprises a plurality of sawtooth rods and a gear column, and the bottom of the gear column makes contact with the ball; the tooth sections of all the sawtooth rods sequentially penetrate through the outer cylinder and the inner cylinder and then are directly meshed with the gear column penetrating through the inner cylinder. The gear column is controlled to rotate so that all the sawtooth rods can be driven to rotate in the forward direction or the reverse direction, all the sawtooth rods are synchronously driven to extend outwards or contract inwards, and therefore the outer ends of all the sawtooth rods abut against the inner wall of the hole to be fixed or not make contact with the hole. The hole protection device is simple in structure and easy to operate, the hole can be rapidly and accurately closed and protected, the hole protection device can be firmly fixed into the hole, meanwhile, the hole structure can be effectively protected, and normal walking is not affected; the operation is safe, the efficiency is high, and the device can be taken out reversely and reused.

The utility model relates to power construction auxiliary equipment technical field, concretely relates to a multifunctional tool box for electric power engineering, including tool box body, storage component, storage component installs at one side of tool box body, and storage component is used for storing the tool, lighting assembly, lighting assembly installs inside tool box body, and lighting assembly is used for lighting. Compared with prior art, the application provides stable lighting, tool classification storage and convenient access, and the function of quickly setting up a temporary work platform under insufficient light environment by setting lighting assembly, storage component and flat plate structure, the practicability, multifunctionality and on -the -spot operation efficiency of tool box are improved significantly, and the single function, inconvenient use problem of traditional tool box is solved.

The application discloses a composite locking structure for mountaineering, and belongs to the technical field of outdoor protective equipment, which is used for providing a composite locking structure for mountaineering which is safe and more convenient to wear and remove, comprising a cover, a plug-in buckle body and a rear-end open shell, the front end of the shell is provided with a gap opening through the front and rear end faces, a lock cylinder is arranged in the shell, the lock cylinder comprises a sliding plate, the front face of the sliding plate is provided with a blocking block, the front face of the blocking block is provided with an unlocking button, and the front face of the sliding plate is further provided with four lock hooks, the end of each lock hook away from the sliding plate is provided with a hook claw, and the four side walls of the shell are provided with plug-in interfaces through the inner and outer walls. The lock cylinder structure with four lock hooks can simultaneously lock and unlock the plug-in buckle body in four directions, the safety belts do not need to be connected one by one when being worn, and the safety belts do not need to be unlocked one by one when being removed, so that the composite locking structure is more convenient to wear and remove the mountaineering safety belts.

The utility model provides a novel material lifting and dumping device. The novel material lifting and dumping device comprises a base plate, a supporting frame, a material barrel, a material barrel frame and a lifting and tilting mechanism. The support frame is arranged on the chassis; the charging barrel is detachably arranged in the charging barrel frame; the lifting and tilting mechanism comprises a lifting frame, a lifting driving device and a blocking guide piece; the charging barrel frame is provided with a rotating arm structure; the charging barrel frame is rotatably connected with the lifting frame; the lifting frame is arranged in the supporting frame through a lifting driving device so that lifting of the lifting frame can be achieved, and the charging barrel frame can be driven to ascend and descend. And the blocking guide piece is provided with a blocking guide position, so that after the charging barrel frame ascends to a set height, the rotating arm structure is blocked by the blocking guide position of the blocking guide piece to ascend. The device can realize material dumping and blanking automatically or in an auxiliary manner, so that the labor intensity of workers is reduced, and the working efficiency is improved.

The utility model discloses the technical field of drainage medical instrument, especially, relates to a chest drainage tube, including connecting piece, and through its connection's outer sleeve and inner sleeve, and through the extension pipe of connecting cover connection in inner sleeve top, be equipped with cooperation at least one boss and at least one buckle connecting portion with connecting cover bottom portion respectively in connecting piece's top, the boss and buckle connecting portion cooperation clasp to open or lock the connecting piece and connecting cover, and still be equipped with connecting seat in the connecting piece in the boss bottom, the connecting seat is equipped with the limit hole, inlaying wave pearl screw in the limit hole, the outer sleeve and inner sleeve, extension pipe can form liquid injection flushing, drainage channel through the assembly of connecting piece and connecting cover, the chest drainage tube of the utility model, the connection and disassembly between outer sleeve and inner sleeve, simple and convenient operation can effectively prevent leakage, and flushing / administration is easy and convenient.

This utility model discloses a toilet back panel opening and closing device, including a toilet body, an openable and closable toilet seat ring, and a cleaning chamber at the rear of the toilet body. The cleaning chamber contains a cleaning space, and the front face of the cleaning chamber has an opening for the toilet seat ring to pass through. A movable back panel is provided on the cleaning chamber, and the back panel moves to open and close the opening. When the toilet seat ring is lifted, it can be moved into the cleaning space through the opening. This utility model, by designing a cleaning chamber and providing a movable back panel, allows the toilet seat ring to be lifted into the cleaning chamber when the back panel is raised. When the back panel is lowered, the toilet seat ring is separated from the toilet body. This allows for cleaning of the toilet seat ring inside the cleaning chamber without water splashing onto the toilet body, effectively preventing cross-contamination.

The application discloses an assembled wall body, which comprises a prefabricated wall body and a base (2) for fixing the prefabricated wall body, and the prefabricated wall body comprises a straight-line prefabricated wall body (3) and / or a corner prefabricated wall body (4), wherein the straight-line prefabricated wall body (3) and the straight-line prefabricated wall body (3) and the straight-line prefabricated wall body (3) and the corner prefabricated wall body (4) are connected through embedding. The assembled wall body has the advantages of high construction efficiency, stable quality, safe structure, high flexibility and adaptability to the requirements of various sites. The prefabricated wall body is relatively low in cost and meets the environmental protection requirements.

This invention discloses a landscape platform-type seawall revetment structure and its construction method. The seawall revetment structure includes a slope-supporting structure, pile foundations, and a permeable floating platform. The permeable floating platform is located on the front side of the slope-supporting structure and abuts against it. By utilizing the slope-supporting structure as the seawall revetment structure and combining the floating platform and the seawall revetment, the revetment functions as both a water-based landscape platform and a seawall revetment while ensuring structural safety, thus improving the single-function nature of the seawall revetment. The construction method of the seawall revetment structure involves steps such as preliminary calculations, pile foundation construction, permeable floating platform construction, and backfilling. The slope-supporting structure and the permeable floating platform structure jointly bear the horizontal force of the seawall behind, effectively reducing land acquisition. This invention, through the landscape platform-type seawall revetment structure and its construction method, expands the water space while ensuring structural safety and reliability.

This invention discloses a universal concrete slab system with no-removal bottom formwork, its construction method, and a carbon emission reduction calculation method, belonging to the field of prefabricated building technology. The core system consists of prefabricated no-removal bottom formwork units, a coordinating load-bearing steel reinforcement skeleton, a post-cast composite concrete layer, and a support and force transmission system. These are fixedly connected to bidirectional reinforcing bars via embedded connectors to form a coordinating load-bearing skeleton, ensuring a firm bond between the prefabricated bottom formwork and the post-cast layer, creating an overall load-bearing structure with the same strength as a fully cast-in-place slab of the same thickness. The prefabricated bottom formwork can be finished with white cement, achieving a unified attribute of temporary formwork, permanent structure, and finished decorative surface. The supporting construction method is designed to fit the specific characteristics of the system, significantly simplifying construction procedures. The carbon emission reduction calculation method is tailored to the dual / triple attributes of the no-removal bottom formwork, with specific calculation rules. This invention features a safe and reliable structure, wide applicability, and outstanding green and low-carbon effects, making it suitable for various civil and industrial building projects and complying with dual-carbon policy requirements.

The invention relates to the technical field of tunnel engineering, discloses a modular replaceable energy dissipation hinge and a tough connecting structure for a tunnel lining, and belongs to the technical field of seismic resistance and error resistance of tunnel engineering. The modular replaceable energy dissipation hinge comprises a lining and a storage groove formed in the lining, and an energy dissipation assembly for lining connection is arranged in the storage groove; the two ends of the energy dissipation assembly are connected with connecting mechanisms stretching into the lining. The energy dissipation hinge is convenient to replace, the replacement difficulty of constructors is reduced, and the construction efficiency is improved; the stability and the strength of a connecting part between the energy dissipation hinge and the lining are improved, and the defects that a traditional energy dissipation hinge is directly and fixedly connected with the lining through bolts, and the bolts are prone to loosening and not tight in connection when stressed are overcome; and the safety of a tunnel main body structure is protected, and the damaged hinge modules can be quickly replaced after an earthquake, so that the tunnel repair period is greatly shortened, the maintenance cost is reduced, and the anti-seismic toughness and restorability of tunnel engineering are remarkably improved.

The utility model relates to the technical field of roof metal vent pipe installation, and discloses a special fixing and lightning arresting pipe clamp device for a roof metal vent pipe. Comprising a circular clamp composed of a first fixing part and a second fixing part, a lightning arrester fixing piece integrally formed on the second fixing part, and a fixing nut fixedly connected to the first fixing part. The round clamp is fixedly arranged on the periphery of the metal vent pipe in a sleeving mode, the fixing nut is fixed to the angle steel support through the fixing screw rod, the metal vent pipe is located above the pre-buried waterproof sleeve, and the bottom of the angle steel support is fixedly connected with the waterproof sleeve through the screw rod. The fixing and lightning arresting pipe clamp device special for the roof metal vent pipe is simple in structure, diversified in function and easy to manufacture in batches, the problem of the fixing mode of the roof metal vent pipe is solved, and the problem of the fixing mode of the lightning arresting device of the metal vent pipe not within the roof lightning protection range is also solved.

The utility model discloses a sliding block core-pulling system for an injection mold with a plurality of mold stripping directions. The sliding block core-pulling system comprises a sliding block head, a pitched roof component fixing block, a fixing plate, a driving mechanism and a plurality of pitched roof components which are sequentially arranged from front to back. The rear ends of the plurality of pitched roof components are respectively connected with the fixed plate through the rear ends of pitched roof component fixing blocks, a spring mechanism is arranged between the rear ends of the pitched roof component fixing blocks and the fixed plate, and the fixed plate is fixedly connected with the movable mold plate. The front end of the pitched roof assembly fixing block is located below the sliding block head, a sliding groove is formed in the middle of the pitched roof assembly fixing block in the length direction, the sliding block head is correspondingly provided with a shifting block connected with the sliding groove in a sliding mode, and the pitched roof assembly fixing block on the rear side of the sliding groove is provided with a fixing block; an elastic block located on the rear side of the fixed block is correspondingly arranged on the movable mold plate, and the free end of the shifting block penetrates through the fixed block and presses the elastic block downwards through the inclined face. The core-pulling mechanism can realize core-pulling of an inverted buckle structure in multiple mold stripping directions, is safe and reliable in structure, and has better practicability.

This utility model discloses a double-opening sliding door system, including a support rail and door leaves symmetrically arranged on the left and right. One side wall of the support rail has a laterally open guide groove, and the bottom has a first sliding groove. The front and rear sides of the top of the door leaves are respectively provided with a roller assembly and a guide assembly. The roller assembly has at least two rollers, which are located within the guide groove. When the door leaves are closed, the rollers of the roller assembly are located in the middle of the support rail, and the rollers of the guide assembly are located at the ends of the support rail, contacting the first sliding groove. This utility model utilizes the roller assembly and guide wheel assembly so that when the door leaves are in the fully open state, the rear end of the door leaves detaches from the upper support rail, shortening the length of the upper support rail and reducing the space occupied by the support drive mechanism.

This invention discloses a collaborative load-bearing device for column-free trusses and clamps at the external corners of glass curtain walls, belonging to the field of glass curtain wall support technology. This invention utilizes a quick-lock assembly operated with disassembly and assembly tools to rapidly lock adjacent glass curtain wall corners, reducing operational difficulty. The screw, deeply embedded in the threaded cylinder, can pierce chemical agents and lock teeth, firmly bonding the screw and threaded cylinder to form a stable connection structure, providing a solid guarantee for the stability of the glass curtain wall. Furthermore, the ratchet and ratchet mechanism maintains unidirectional rotation of the screw, effectively preventing loosening due to external forces during use. This fundamentally avoids the problem of loose screws affecting the overall stability of the glass curtain wall, achieving an irreversible fixing effect and further enhancing the safety and reliability of the glass curtain wall structure. After the screw and threaded cylinder are installed in place, the central rod protrudes from the opening, allowing for quick confirmation of the glass curtain wall's installation, making installation more convenient and efficient.

This utility model provides a novel tunnel escape pipeline device, relating to the technical field of escape pipeline devices. It includes a pipeline body, clamping blocks disposed on the outer side of the pipeline body, support members disposed on the outer sides of both ends of the pipeline body, a clamping plate disposed on the outer side of the middle portion of the pipeline body, and clamping components disposed below the middle portion of the pipeline body. The entire operation only requires activating a telescopic cylinder to complete the linkage clamping and self-locking, eliminating the need for complex tools. This simplifies the pipeline assembly process, facilitating the rapid construction of a passage in emergency escape scenarios. Furthermore, the robust clamping and self-locking design ensures the structural safety of the pipeline during escape, reducing the risk of collapse and detachment.

The utility model provides a kind of mirror assembly, including support, top hat and locking mechanism, support is equipped with mirror, the one end of support is equipped with first pivot, the end of first pivot is equipped with sphere, sphere is rotatably equipped in a recess;Top hat is equipped in the side of sphere's back to recess, top hat is contacted with sphere, for preventing sphere from being taken out from recess;Locking mechanism cover is equipped in the outside of top hat, locking mechanism is used to fix the position of top hat relative to recess.The utility model provides a kind of mirror assembly, simple structure, smaller, it is convenient to assemble, and need not custom component, can save cost.In addition, the utility model also provides a kind of head-up display device.

This invention belongs to the field of durability and safety assessment, and discloses a method and apparatus for assessing the full-range fatigue life of corroded steel bars considering pitting characteristics. The method includes: calculating the long crack propagation life based on the dimensional characteristics of the steel bar to be assessed and the dimensional characteristics of pre-determined pits on its surface; calculating the nominal equivalent size of surface defects of the steel bar to be assessed based on the dimensional characteristics of the pre-determined pits; calculating the crack nucleation life based on the dimensional characteristics of the pre-determined pits and the nominal equivalent size of surface defects of the steel bar to be assessed; calculating the short crack propagation life based on the nominal equivalent size of surface defects of the steel bar to be assessed and the boundary size for the transition from short cracks to long cracks; and calculating the total fatigue life based on the long crack propagation life, crack nucleation life, and short crack propagation life. This invention achieves accurate assessment of the fatigue life of corroded steel bars, meeting the accuracy and reliability requirements for assessing the full-range fatigue life of corroded steel bars.

This utility model relates to a connection structure between steel columns and reinforced concrete beams in an all-indoor steel structure substation, comprising: steel columns, C-shaped steel, reinforced concrete beams, reinforcing bars, and steel plates; at least one C-shaped steel is fixedly connected to the steel column; a steel plate is fixedly connected to one end of the reinforcing bars in the reinforced concrete beam; the steel plate is directly inserted and welded into the channel structure of the C-shaped steel. This utility model avoids damage to the structural steel columns and is also suitable for situations where multiple rows of reinforcing bars are unavoidably arranged in the reinforced concrete beam, making it safe, reliable, and easy to construct.

The utility model discloses laser cutting machine laser head is with round nut adjusting device, including force bar, stand, adjustable stand, pawl and limit nut, the force bar tip welding stand, and the adjustable stand can be movably arranged on the upper part of the pole, and the adjustable stand is still threadedly connected with the limit nut, and the adjustable stand is fixed on the force bar through the limit nut, the pawl is arranged at the opposite side of the end of stand and adjustable stand respectively. The utility model discloses simple structure, convenient operation, and the size is adjusted through adjustable stand and limit nut, is suitable for different specifications of round nut, and the versatility has been improved, the pawl is equipped on the both sides of device, can be firmly clamped into the gap of round nut, and the stress is even, and it is not easy to slip, and the dismounting is safer and more efficient, compared with traditional crescent wrench, is convenient for carrying and management, is suitable for laser cutting machine maintenance operation, can significantly improve laser equipment maintenance efficiency, and the knot can satisfy laser processing technology demand.

The invention is suitable for the technical field of industrial safety control, and provides an intelligent control method and system for removing plasma-oriented material tritium retention, and the method comprises the following steps: monitoring and collecting state data in a tritium removal process in real time; identifying the stage of the current tritium removal process; receiving current state information and preset tritium removal process parameters, and predicting a desorption trend curve in a future time period according to a prediction model based on diffusion and desorption physical rules of tritium in the plasma-oriented material; comparing the predicted desorption trend curve with the tritium desorption rate monitored in real time to obtain a deviation; if the deviation meets a preset judgment condition, generating a new control instruction; and according to the control instruction, dynamic adjustment of tritium removal process parameters and cooperative switching of multiple methods are realized. According to the method, the tritium removal state can be sensed in real time, the tritium removal process parameters are dynamically adjusted according to the tritium removal state, and precision, self-adaption and optimization of the tritium removal process are achieved.

A lighting fixture, relating to the field of lighting fixture technology, includes: a lampshade, a control circuit board, a light-emitting element, and a driving power supply assembly. One side of the lampshade has a light-transmitting surface; the control circuit board is mounted inside the lampshade; the light-emitting element is mounted on the control circuit board; the light-emitting element's light-emitting direction faces the light-transmitting surface; the driving power supply assembly is mounted on the control circuit board; and the control circuit board, the light-emitting element, and the driving power supply assembly are electrically connected. This technical solution offers advantages such as convenient assembly and disassembly, small size, and high safety and reliability.