110results about How to "High replaceability" patented technology

The invention is suitable for the technical field of reliability test of numerical control machine tools, and provides a ball screw pair comprehensive performance test device and method for simulating real working conditions. The device comprises a ball screw pair, a test device base, a rolling guide rail pair, a grating ruler integrated installation unit, two sets of support driving units, a loading workbench, an axial force simulation loading unit, a tested workbench and a comprehensive performance detection unit. The two sets of supporting and driving units are distributed on the test device base in a staggered alignment manner and are respectively connected with the loading workbench and the tested workbench, and synchronous driving of the loading workbench and the tested workbench is realized through synchronous control; and the axial force simulation loading unit realizes static and dynamic simulation loading of the axial force through electro-hydraulic servo control. According to the invention, a test device and technical support are provided for carrying out the reliable comprehensive performance bench test of the ball screw pair, and the problems of the ball screw pair in the aspects of high-frequency dynamic load simulation loading, comprehensive performance test and motion tracking loading are solved.

According to the thin-layer sound absorption superstructure composite acoustic enclosure and the using method, the acoustic enclosure is composed of the cover plate, the conformal frame, the thin-layer sound absorption superstructures and the porous sound absorption materials, the variety of the thin-layer sound absorption superstructures is not limited to one, and the broadband noise reduction effect can be achieved through the parallel superposition design of the thin-layer sound absorption superstructures and the porous sound absorption materials. Wherein the thin-layer sound absorption superstructure can absorb noise in different frequency ranges of medium and low frequency bands, the porous sound absorption material can absorb noise in medium and high frequency bands, and the working bandwidth of the composite acoustic shield after parallel connection and superposition can cover the low, medium and high wide frequency bands. The thin-layer sound absorption superstructure composite acoustic shield further has the advantages of being high in space utilization rate, high in space adaptability, small in thickness, low in surface density and high in material replaceability. Compared with an existing sound insulation cover, on the premise that the thickness is small and the surface density is low, the working frequency band is wider, the sound insulation effect is better, and the sound insulation cover has wide application prospects in noise control of various mechanical and electrical products.

The invention relates to an easy-to-replace marine single-point vibration reduction base which comprises a panel, the upper end face of the panel is matched with an auxiliary equipment base and provided with bolt holes used for being connected with auxiliary equipment, and a vibration reduction pad is laid between the panel and the auxiliary equipment base; the webs are vertically welded to the two sides of the lower end face of the panel to form a supporting structure of the vibration reduction base unit; wherein the face plate and the web plate are connected in a welded mode to form a vibration reduction base unit together, and the vibration reduction base unit is used for supporting and reducing vibration of auxiliary machine equipment. The damping device is compact and reasonable in structure and convenient to operate, the damping performance, the structural strength and the anti-corrosion capacity are remarkably improved by optimizing the structural design of the base, introducing the self-adaptive adjusting supporting device and the reinforcing rib plates and other innovative designs, and meanwhile installation and maintenance are facilitated. The beneficial effects jointly provide powerful guarantee for stable operation of ship power equipment, vibration and noise transmission are reduced, and comfort and invisibility of a ship are improved.

The invention is suitable for the technical field of encoder testing, and provides a system and a method for testing the reliability of a grating encoder in an oil mist environment. According to the invention, rotating speed and oil mist environment conditions in actual working conditions can be simulated, and multiple grating encoders can be tested at the same time, so that the test cost and time are greatly saved; an oil mist environment closed-loop control strategy is adopted, oil mist concentration closed-loop control is achieved through cooperation of an oil mist concentration sensor, an oil mist generator, an oil mist collector and an oil mist system closed-loop control module, and subsequent quantitative evaluation of the reliability of the grating encoder is facilitated; by arranging a temperature sensor, a humidity sensor and an acceleration sensor, the temperature, the humidity and the vibration working condition of the grating encoder can be monitored in real time, and the subsequent comprehensive evaluation of the reliability multi-stress influence of the grating encoder is facilitated; the grating encoders of different models and different sizes can be tested only by changing the size of the grating encoder clamping device, and the universality and the flexibility of the system are embodied.

The invention relates to the field of mechanical equipment, in particular to a pipeline direct connection type air suspension turbine vacuum pump which comprises a shell, the shell is through in the front-back direction, a motor is installed in the shell and comprises a motor sleeve, a motor stator is installed in the motor sleeve, a motor rotor is rotatably installed in the motor stator, and an impeller is installed on the motor rotor. A radial air bearing used for supporting a motor rotor to rotate is installed in the shell, the motor sleeve and the shell are mutually spaced, a spaced cavity of the motor sleeve and the shell forms a main channel for airflow to pass through, the motor sleeve is through front and back, an inner cavity of the motor sleeve forms an auxiliary channel for airflow to pass through, and a sealing cover plate is installed on the front side of the motor sleeve. The impeller is located in front of the sealing cover plate, the sealing cover plate seals the opening in the front side of the motor sleeve, and a plurality of flow dividing holes are formed in the sealing cover plate and penetrate through the sealing cover plate. A double-channel structure is arranged in the vacuum pump, air inlet drainage can be directly used for cooling a main machine, and meanwhile the air outlet pressure of a single-channel structure is relieved.

According to the integrated double-H-bridge power unit module, two three-phase rectifier bridges and H-bridge modules are mounted on a radiator to form a double-H-bridge loop, so that double-module series output is realized, and the power density is improved; the module adapter plate realizes integrated and modular design, and the production efficiency is improved; main loop current terminals are welded around the control terminals, so that the interference of a main loop to a driving control loop is reduced; the bypass power relay meets bypass output when a fault occurs; the filtering energy storage capacitors are divided into two groups and respectively provide energy storage and filtering for the corresponding H-bridge inverters; independent two-way unit inputs are connected with a fast fuse through an input cable, a cable sheath is installed at a via hole of a main shell, and the cable is deformed and limited through a cable supporting piece in the main shell; the power unit module has the advantages of being high in power density, high in integration, high in installation efficiency, convenient to overhaul and the like on the premise that the structural strength and the electrical performance are met, and the problems that a power unit module is large in element number, low in power density, large in size and complex in installation are solved.

The utility model discloses a barbecue thermometer with a detachable probe, which relates to the technical field of thermometers, and comprises a display module, a probe and a temperature sensor, the top of the display module is provided with a display screen, and the upper end and the lower end of the probe are fixedly sleeved with a first magnetic ring and a second magnetic ring respectively. The outer surface of the first magnetic suction ring is connected with an adsorption ring in a magnetic suction mode, the outer surface of the adsorption ring is fixedly sleeved with a long cleaning pipe, the bottom of the long cleaning pipe is connected with a short cleaning pipe in a penetrating mode, the bottom of the short cleaning pipe is fixedly connected with a scraping ring, and the probe is sleeved with the long cleaning pipe, the short cleaning pipe and the scraping ring. The barbecue thermometer probe is reasonable in structure, through the arrangement of the long cleaning pipe, the short cleaning pipe and the scraping ring outside the barbecue thermometer probe, a probe protection structure on the barbecue thermometer can be conveniently added, the probe can be cleaned at the same time, the use effect of the barbecue thermometer is improved, and the barbecue thermometer probe has practicability.

The utility model discloses an anti-solidification concrete vertical mixer which comprises a mixing drum, a discharging pipe is arranged at the bottom end of one side of the mixing drum, a servo motor is installed in the center of the bottom end of the mixing drum, a mixing shaft is installed at the top end of the servo motor, and the top end of the mixing shaft extends into the mixing drum. And meanwhile, assembling mechanisms are evenly arranged on the two sides of the stirring shaft, and stirring fan blades are welded to the outer portions of the assembling mechanisms. Under the action of the first bevel gear and the second bevel gear, rotation of the stirring shaft can synchronously realize rotation of the transverse rotating shaft, and the lifting rod drives the rubbing ring to rub the inner wall of the stirring barrel up and down in combination with the up-down reciprocating mechanism, so that concrete is prevented from being always adhered to the inner wall, and solidification of the concrete is prevented; and a special structure of the rubbing ring is utilized to promote inward flowing of the concrete, so that the stirring and mixing effects of the stirring fan blades on the concrete are further improved.

In order to solve the technical problems that an existing surface microstructure machining method is difficult to consider high precision, high surface quality, high efficiency, high adaptability, high controllability and low cost, the invention provides a five-axis linkage dot-scribing type forming method for a metal surface microstructure under a complex working condition. By utilizing the characteristics of small size and good replaceability of the microneedle cutter and combining the characteristics of high machining precision and high degree of freedom of the five-axis linkage numerical control machine tool, the pose of the microneedle cutter can be continuously and accurately adjusted through the five-axis linkage numerical control machine tool according to different complex working conditions; a required array microstructure can be machined on the surface of a metal workpiece under the complex working conditions that the operable space is narrow and limited, a free-form surface is formed, and a thin wall is prone to deformation, the defects that according to a traditional die imprinting technology, microstructure distribution controllability is low, and material surface integrity is damaged by micro-milling machining are overcome, and the microstructure forming efficiency is improved; and the method has the advantages of high precision, high surface quality and low cost.

The utility model discloses a meson press-fitting device. The rotating disc assembly is arranged on the rack, and the rotating disc assembly comprises a rotating disc main body and a plurality of explorators which are movably arranged on the peripheral side of the rotating disc main body and are used for magnetically attracting rotors; the meson press-fitting device comprises a meson feeding assembly and a meson press-fitting assembly, wherein the meson feeding assembly is used for providing meson for press-fitting; the meson pressing assembly comprises a meson pressing head, and the meson pressing head comprises a positioning head, an upper die column and an upper die mounting piece; the positioning head is detachably connected with the upper die column, the upper die column is detachably connected with the upper die installation part, and the pressing head is connected with the driving part through the upper die installation part so as to move in the vertical direction under driving of the driving part. According to the technical scheme, the meson pressing head comprises the positioning head, the upper die column and the upper die mounting piece, the positioning head and the upper die column are detachably connected, and the upper die column and the upper die mounting piece are detachably connected, so that the replaceability of the meson pressing head can be enhanced.

The present application belongs to the technical field of low-frequency vibration control, aiming at the problems of high damping ratio, instability, low vibration control efficiency and unsuitable for large-scale engineering of existing inertial damper, a low-damping tuned inertial damper device is provided, which provides the possibility for the whole system to realize the required optimal damping ratio, and further efficiently controls low-frequency resonance. Unlike traditional rigid support and transmission mode, the device adopts economical, reliable and convenient flexible suspension support and transmission mode to realize low frequency and stable low damping of the system. The flexible support part and the rigid inertial device are in contact transmission around, which eliminates the high damping caused by high energy consumption due to instability caused by friction and collision in traditional inertial tuned mass damper, so as to ensure that the large inertial system realizes stable low damping ratio, meets the needs of realizing optimal control effect, and is directly applied to large engineering structure resonance control.

The utility model relates to lighting device technical field, concretely relates to a modularization quick detachable lamp, include: lamp body, be provided with the chassis in the lamp body, be provided with module connecting element on the chassis, be provided with electrical interface on the module connecting element, be equipped with at least one functional module placement position on the chassis, functional module placement position is detachably installed with functional module through mechanical fixed structure, module connecting element is detachably connected with at least one functional module through electrical interface. The mechanical fixed structure is quick detachable connecting structure. Be provided with the mounting ring on the chassis, the mounting ring is detachably connected with the light source module matched therewith through the screw knob structure. Therefore, provide a modularization quick detachable lamp to solve the problem of the difficulty of buying new lamp or refitting original lamp when having different function demand to the lamp in the prior art.

The utility model relates to the technical field of circuit facilities and equipment, and discloses a bird repeller for a power transmission line tower, which comprises a base, a clamping mechanism is arranged on the base, a support rod is rotatably connected above the base, a bird repelling component is arranged at the top of the support rod, the bird repelling component comprises a support block and bird repelling rod thorns connected with the support block, and the support block is connected with the top of the support rod; the supporting rod below the bird repelling assembly is rotationally connected with a winding rod group; each winding rod set comprises a winding rod and a reflecting cover connected with the winding rod, and the other end of the winding rod is rotationally connected with the supporting rod. The clamping mechanism on the bird repelling device base can be used for conveniently and quickly mounting or dismounting the bird repelling device, and the clamping effect is good; birds are repelled through sound and the bird repelling rod thorns, the purpose of repelling birds can be achieved through light stimulation, the bird repelling modes are diversified, and the bird repelling device has the advantages of being easy and convenient to install and maintain, low in production cost, good in bird repelling effect and capable of effectively guaranteeing the safety of safe operation of an electric power grid.

The utility model discloses a silencer and a vehicle. The silencer comprises a shell, a silencer body, a driving device and a driving device, wherein a silencing space is formed in the shell; the partition plate is arranged in the silencing space, and an avoiding hole is formed in the partition plate; the exhaust pipe is arranged in the avoiding hole in a penetrating manner; the shell and / or the partition plate are / is provided with an elastic supporting piece, and the elastic supporting piece is connected with the exhaust pipe so as to support the exhaust pipe. The exhaust pipe is supported by the elastic supporting piece, the elastic supporting piece has certain elasticity, the elastic supporting piece absorbs stress, the probability of disconnection between the exhaust pipe and the elastic supporting piece is reduced, the exhaust pipe is fixed to the elastic supporting piece all the time, abnormal sound is avoided, the overall structure is simple, practicability is high, and the exhaust pipe is suitable for popularization and application. And the replaceability is high.

The utility model relates to the technical field of automobile safety assistance, and discloses an automobile indirect visual field device which comprises an optical signal receiving device, a connecting pipe, a photosensitive element, an electronic display screen, a power supply device and a rearview mirror shell, the optical signal receiving device comprises a lens, the lens is arranged at one end of the connecting pipe, the connecting pipe is shaped like a Chinese character'yi ', and the photosensitive element is arranged on the connecting pipe. Two reflectors with opposite mirror surfaces are installed at the two corners in the connecting pipe, the other end of the connecting pipe is connected with the photosensitive element, the photosensitive element and the electronic display screen are connected with the power supply device through wires, and the rearview mirror shell comprises a shell body and a lens. The optical signal receiving device, the connecting pipe, the photosensitive element and the power supply device are sequentially installed in the rearview mirror shell, and a light hole is formed in the position, corresponding to the installation position of the lens, of the lens. The device can display the road condition in the view blind area for a driver in real time, and traffic accidents are avoided when the automobile changes lanes or turns.

The invention provides an assembly tool and an assembly method for axially fixing a plurality of parts, and belongs to the field of mechanical part assembly. The problems that an existing common axial fixing tool is complex in operation, low in efficiency and limited in applicability, and a good axial fixing effect is difficult to achieve when large-scale and multiple parts are axially fixed and assembled are solved. And particularly, when a cavity with a complex shape exists in the first part to be fixed, the first part to be fixed is difficult to be assembled with subsequent parts in series through a conventional tool. The device comprises a mandrel and a locking nut, a rotary limiting block is rotatably fixed to the penetrating end of the mandrel, the center line of a rotary shaft of the rotary limiting block is perpendicular to the center line of the mandrel, and the length of the rotary limiting block is larger than the diameter of the mandrel; and the locking nut is in threaded connection with the tail end of the core shaft. The tool is mainly used for quickly assembling a plurality of parts in an axial fixing manner.

The embodiment of the present invention discloses a coal transportation system anti-blocking coal detection device, which belongs to the field of coal powder transportation detection technology, including a fixed base, a movable door and a pin shaft, wherein the movable door is rotatably mounted on one side of the outside of the fixed base, and the pin shaft is installed through the connection position between the inner top of the movable door and the outer side of the fixed base, and the inner bottom surface of the movable door and one side of the outer wall of the fixed base are fixedly connected by a driving mechanism, and the driving mechanism includes a rotating worm, a movable support arm, a rotating hinge arm, a driving motor, a fixed gear ring and a transmission crawler, and the rotating worm is symmetrically rotatably mounted on both sides of the outer wall of the fixed base, and the rotating hinge arm is hingedly mounted at the connection position between the outer top of the movable support arm and the bottom surface of the movable door, which solves the problem of the device not sending an alarm signal after coal is blocked. It has the effect of preventing further coal blockage and coal overflow to achieve a scientific detection effect.

The utility model relates to the technical field of clutch power transmission, and provides a reversing wet clutch. The clutch comprises an input shaft and a connecting blocking table on the side wall of the input shaft, and an annular baffle is arranged in a clutch hub body and divides the interior into a left cavity and a right cavity. A clutch mechanism is arranged in each cavity and connected with a driving gear on the input shaft. The left clutch mechanism is responsible for power combination and separation of the left cavity and the driving gear, and the right clutch mechanism is responsible for the right cavity. By means of the design, the forward gear and the reverse gear can be rapidly and stably switched under the condition that power transmission is not interrupted. Different from traditional mechanical gear shifting which needs stopping to interrupt power, the structure achieves independent control and switching of power, and improves continuity and efficiency of operation of the tractor. In addition, the control logic of the transmission system is simplified through the independent clutch mechanism, and the operation complexity and the working intensity of a driver are reduced.

The invention relates to the technical field of optical lens machining, in particular to a clamping device, ion beam shaping equipment and a machining method.The clamping device comprises a base and a clamping assembly, the base is provided with an installation station, the installation station is used for containing a lens to be machined, the base is provided with a plurality of guide rails, and the guide rails are arranged on the base. The guide rail is arranged in the radial direction of the center of the mounting station, the multiple clamping assemblies are arranged on the guide rail in a one-to-one correspondence mode, each clamping assembly comprises a sliding block, a telescopic unit, a rotating unit and a supporting plate, the sliding blocks are in sliding connection with the guide rail, and the telescopic units are arranged on the sliding blocks. The fixed part of the telescopic unit is fixedly connected with the sliding block, the rotating unit is arranged on the telescopic part of the telescopic unit, and the supporting plate is arranged on the rotating part of the rotating unit. The problem that the clamping device shields the surface of the workpiece and influences the final machining precision is solved, and the machining precision of ion beam shaping can be guaranteed.

The invention discloses a multi-stator traveling wave driven hollow rotary ultrasonic motor and a method thereof. The hollow rotary ultrasonic motor comprises a base, a shell, a fixed ring, a stator module, a rotor and a rolling bearing, the stator module comprises a stator bracket and N stator units; the stator unit comprises first to second adjusting bolts, first to second adjusting springs, first to fourth fixing bolts, first to fourth fixing nuts, a stator seat, a metal substrate, first to fourth piezoelectric ceramic pieces, and first to fourth driving feet. During working, the stator units are excited by two-phase signals, so that the driving feet on the stator units generate elliptical motion to drive the rotor to rotate, and the effect of simulating traveling wave driving is achieved by controlling the phases of the signals received by the stator units. According to the invention, a multi-stator traveling wave driving mode is adopted, modular design is adopted, the stator is convenient to disassemble and replace, and the motor has the advantages of large size, large hollow space and the like.

The utility model relates to the technical field of double-fluid atomized oil nozzles, in particular to a double-fluid atomized oil nozzle which comprises a hexagonal flange, a nozzle body and a fixing ring, one side of the hexagonal flange is connected with the nozzle body through a threaded pipe, and a cap head is arranged at the other end of the nozzle body. A connecting pipe is welded to one side of the top of the nozzle body, a filter screen B is connected between the inner walls of the nozzle body through a rotating shaft, a suction valve is installed at the bottom of the nozzle body through a reserved opening and a bolt, a fixing ring is arranged on the side, corresponding to the connecting pipe, of the periphery of the nozzle body, and tightening bolts penetrate through the two sides of the fixing ring. Water flows through the filter screen A and enters the nozzle body, impurities carried in a water source can be filtered out, the phenomenon that the nozzle is blocked is avoided, the filter screen A is detached for replacement and cleaning in the later period, replaceability of local parts is achieved, and the maintenance and replacement cost is reduced.

The application discloses a photovoltaic inverter and a photovoltaic inverter system. The photovoltaic inverter comprises a parallel output end, a total output end, a plurality of MPPT modules and a plurality of inverter power modules. The total output end and the parallel output end are electrically connected. The input end of the MPPT module is used for connecting a photovoltaic panel and outputting the voltage output by the photovoltaic panel after voltage boosting. The output ends of the plurality of inverter power modules are respectively electrically connected with the parallel output end. The inverter power module is used for outputting the voltage input by the input end to the parallel output end after inverting the voltage. The input end of the inverter power module is connected with the output end of at least one MPPT module, and the output end of the MPPT module is connected with the input end of only one inverter power module. Alternatively, the input ends of all the inverter power modules are respectively electrically connected with a bus, and the output ends of all the MPPT modules are respectively electrically connected with the bus. The application aims to improve the output capacity of the photovoltaic inverter.

The present invention discloses a photoelectric sensor dynamic calibration device and a dry biochemical analyzer, which belongs to the technical field of biochemical analyzers, and proposes the following scheme: the photoelectric sensor dynamic calibration device includes: a reagent disk device and a detection device; the reagent disk device includes: a gray sheet base, which has M grooves; M gray sheets, each gray sheet has a gray scale with different gradients, and is sequentially installed in the grooves of the gray sheet base according to the gray scale gradient; a light shielding cover with M groups of light-transmitting holes, which is correspondingly placed above the M gray sheets; the detection device includes a light source and a photoelectric sensor; the light source emits light of different wavelengths through the light-transmitting holes to irradiate the gray sheets; the photoelectric sensor collects the light signals passing through each gray sheet, and converts them into multiple electrical signals and feeds them back to the detection device; the detection device analyzes and processes the multiple electrical signals, and generates dynamic response curves after light of different wavelengths passes through gray sheets with different gray scale gradients. The technical scheme of the present invention evaluates and dynamically calibrates the photoelectric sensor in the dry biochemical analyzer.

The invention relates to a novel disassembly-free reversing stepless center distance-adjustable vibration device which comprises a bottom plate, a center distance-adjustable stud, a rear support lug base, a rear support lug seat, a rear support lug seat nut, a reversing fixing stud, a front support lug base, a rocker arm and a fixing pressing strip. A concave groove is formed in the bottom plate, the center distance adjustable stud is fixed in the concave groove through the fixing pressing strip, the rear supporting lug base is in threaded connection with the center distance adjustable stud and matched with the concave groove, and the center distance adjustable stud is rotated to enable the rear supporting lug base to move along the concave groove. One end of the rear support lug seat is connected to the rear support lug base, and the other end is connected with a product; a product is connected to the front support lug base through a rocker arm; a cross hole is designed in the rear support lug seat, and when a product is reversed by 90 degrees, the rear support lug seat is rotated, and a reversing fixing stud penetrates through the cross hole in the rear support lug seat to perform circumferential rotation limiting on the rear support lug seat, so that 90-degree reversing of the product is realized; and the rear support lug seat nut is used for tightening the rear support lug seat, so that disassembly and assembly are avoided.

The invention discloses an energy router message passing method based on task switching of a real-time operating system, relates to the field of embedded communication control, and aims to solve the problems that an energy router system based on a PLC (Programmable Logic Controller) or an embedded energy router system occupies a large space and is limited in flexibility. Comprising the following steps: a first unit performs primary packaging on a to-be-sent instruction according to a format requirement of a second unit to form a primary message; the first unit performs secondary packaging on the data on the basis of the central receiving message format to form a message MSG; the center receives the message MSG and analyzes the message MSG, and the analyzed data are stored in an exclusive queue of the center about the second unit; and the second unit reads the message from the exclusive queue and analyzes the read message. According to the invention, a real-time operating system message transmission mechanism is utilized, a message transmission information format is set, message collection and distribution are carried out in combination with a center, and instruction sending and issuing among units of the energy router are finally realized.

The utility model provides a perforated plate section bar combined type grating decoration frame, which is characterized in that vertical edges on the inner side and the outer side of a perforated metal plate on two side surfaces of the grating decoration frame are respectively connected with a U-shaped connecting piece and a Z-shaped connecting piece in a hidden manner, and the U-shaped connecting piece and the Z-shaped connecting piece are respectively inserted into an inner opening section bar and an outer opening section bar and are connected through screws; the upper end and the lower end of the inner opening profile and the upper end and the lower end of the outer opening profile are connected to the connecting structures at the upper end and the lower end respectively through the inner opening steel adapting pieces and the outer opening steel adapting pieces at the upper end and the lower end, and all the connecting screws are connected in a hidden mode. The processing and mounting quality control is easy, the replaceability is good, and the like, and the grating decoration frame has wide application space and good popularization prospect in the design and mounting of the grating decoration frame in the field of constructional engineering.

The utility model belongs to the technical field of lighting lamps, and particularly relates to a multi-angle light-transmitting LED lamp which comprises a shell, an outer cover and a light source assembly, the light source assembly is arranged in the shell and the outer cover, the light source assembly is arranged on the shell, a light bar is further arranged on the light source assembly, and the light bar is electrically connected with the light source assembly. By arranging multiple light sources of the light source assembly and the light bar, multi-angle lighting and decorative lighting are achieved, and the limitation of a single-layer light source plate and a single light source of an existing LED lamp is avoided; the whole LED lamp is convenient to install, cost reduction is facilitated, energy conservation and environmental protection are achieved, and good replaceability is achieved.

The utility model relates to packing box technical field especially a packing box support structure, including packing box body, be provided with first screw bushing and box bottom plate on packing box body, the top of packing box body is equipped with box cover, be provided with second screw bushing on box bottom plate, the card of box bottom plate is equipped with angle support, is equipped with vertical installation groove on angle support, is inserted with angle support base in vertical installation groove, is equipped with vertical support on angle support base, is equipped with first sunken groove and second sunken groove on angle support, is equipped with middle angle support and screw groove on angle support base, is equipped with second bolt on second cap handle, is equipped with anti -loose disc on second bolt, is equipped with buckle groove on second cap handle. Realized the bottom angle support base of finished product lithium cell with wooden material material loading and transportation packing box body and the replaceability of vertical support, improved the bottom integral effective support area of packing box body, improved the thread anti -loosening between second bolt and screw groove.

The lamp comprises a face ring assembly, a light source module, a bottom cover assembly, a power source assembly and an installation hanging piece, a plurality of face ring buckles are arranged on the inner side of the face ring assembly, and a plurality of bottom cover buckles corresponding to the face ring buckles are arranged on the inner side of the bottom cover assembly. The light source module is arranged between the face ring assembly and the bottom cover assembly and is buckled and fixed through the face ring buckle and the bottom cover buckle, the power source assembly is installed on the bottom cover assembly, and the installation hanging piece is arranged on the bottom cover assembly. A containing groove is formed in the inner side of the heat dissipation assembly, a plurality of end pressing edges are arranged along the outer ring of the containing groove, the reflection assembly is located on the innermost side of the heat dissipation assembly, and the light guide assembly, the light source body and the light scattering assembly are sequentially arranged on the outer side of the reflection assembly. When the lamp is damaged and needs to be replaced, the face ring buckle and the bottom cover buckle are disassembled to fix and take out the light source module, disassembly and assembly are convenient, replaceability is high, and environmental pollution is reduced.

The invention provides a top crown type wind turbine foundation structure with replaceable anchor bolts. The top crown type wind turbine foundation structure comprises a main body foundation, a top crown conversion part, a pre-stressed anchor cable and a pre-stressed anchor bolt cage. The top crown conversion component is a prefabricated movable component, transmits the load of a steel tower drum to the main body foundation, is connected with the main body foundation through a plurality of pre-stressed anchor cables, and can be prefabricated and replaced in a matched mode according to the type of anchor bolts. The main body foundation is of a concave structure with the hollow middle, the top crown conversion component is of an inverted convex structure with the bottom protruding and the hollow middle, and the protruding part is inserted into the hollow area of the main body foundation. The foundation form effectively solves the problem that the anchor bolts of the fan foundation are difficult to replace, the original fan foundation is recycled in the fan capacity increasing transformation process, the manufacturing cost is reduced, and construction is easy and convenient.