64results about How to "Easy to convert" patented technology

The invention provides a cylindrical hydrodynamic ventilation structure special for a cooling tower fan, and belongs to the technical field of cooling ventilation. Comprising a tower body, a water basin is installed at the bottom of the tower body, a water inlet pipe is installed at one end of the water basin, a water return pipe is installed at the top of the water inlet pipe, a water pump is arranged at one end of the water inlet pipe, and a water outlet pipe is installed at one end of the water basin. By arranging the worm gear speed increasing assembly and the power driving assembly, kinetic energy of water flow is converted into mechanical energy through circulation of water power, the cooling process is accelerated, complex parts such as a motor and a transmission device in a traditional cooling tower are reduced, the manufacturing cost is reduced, maintenance points and the fault rate are reduced, and the service life of the cooling tower is prolonged. The reliability and stability of the system are improved, the rotation angle adjustment of the fan blades is increased, the air volume is increased, evaporation and heat dissipation of water are accelerated, energy consumption is reduced, the flexibility of the system is enhanced, and the ventilation structure can adapt to different working environments and cooling requirements.

The utility model discloses a five-roller film coating device for two processes of forward coating and reverse coating, which comprises a forward glue coating steel roller, a reverse glue coating steel roller, a forward transfer glue roller and a reverse transfer glue roller, and the two processes share a glue tank; the diameter of the reverse transfer rubber roller is smaller than that of the forward transfer rubber roller, and the forward transfer rubber roller and the reverse transfer rubber roller are arranged below the forward glue coating steel roller and the reverse glue coating steel roller and are arranged relative to the forward glue coating steel roller and the reverse glue coating steel roller; the forward glue coating steel roller, the reverse glue coating steel roller, the forward transfer glue roller and the reverse transfer glue roller are respectively driven by a motor to rotate, a transverse transmission mechanism is used for adjusting the relative distance between the forward glue coating steel roller and the reverse glue coating steel roller, and the forward transfer glue roller and the reverse transfer glue roller are respectively provided with a lifting mechanism. The working states of the forward gluing steel roller and the reverse gluing steel roller are interchanged, and the working states of the forward transfer rubber roller and the reverse transfer rubber roller are interchanged, so that two processes of forward coating and reverse coating are interchanged.

The invention belongs to the technical field of metal corrosion numerical simulation analysis, and particularly relates to an aviation metal braided conductor point cloud data entity modeling method based on cellular corrosion, which comprises the following steps: S1, establishing a three-dimensional cellular space for simulating an aviation metal braided conductor corrosion environment; s2, conducting wire corrosion process simulation modeling according to the three-dimensional cellular space, and determining wire cellular transformation and diffusion rules and corresponding corrosion and diffusion probabilities; s3, constructing a lead cell three-dimensional space point cloud equation, and generating lead grid units; and S4, splicing the wire tetrahedral mesh units to generate a smooth curved surface, and completing aviation metal braided wire point cloud data materialized modeling. According to the method, the three-dimensional discrete points, generated in the cellular automaton, of the aviation metal braided conductor can be converted into entities in finite element simulation software, the complex surface appearance of the aviation metal braided conductor is reserved, the conversion process from simulation to an entity model is optimized, and the method is good in applicability.

The invention discloses a cross-platform smart home control method and device, equipment and a storage medium, and the method comprises the steps: determining target equipment and to-be-converted instruction information corresponding to the target equipment in response to a user instruction; determining a protocol conversion rule suitable for the to-be-converted instruction information by using a pre-constructed instruction identification model; based on a protocol conversion rule, performing protocol conversion on the to-be-converted instruction information to obtain target instruction information of the target equipment; and controlling the target equipment to operate based on the target instruction information. According to the cross-platform smart home control method and device, the equipment and the storage medium disclosed by the invention, the problem that a user needs to use a plurality of application programs to control different smart equipment in an existing communication mode is solved, so that interoperability between different smart equipment is realized, different application programs do not need to be used to control different smart equipment, and the user experience is improved. The operation steps of the user are reduced, and the flexibility and expansibility of the smart home system are effectively improved.

The utility model provides a photovoltaic panel sweeper and belongs to the technical field of sweepers. The photovoltaic panel sweeping machine comprises a main body and a cleaning mechanism, the main body comprises a supporting frame, a placing frame is fixedly installed on the upper end face of the supporting frame, a pair of installing bases are fixedly installed at one end of the placing frame, connecting shafts are rotationally connected into the installing bases, the cleaning mechanism comprises an installing frame, and sliding grooves are formed in the two sides of the installing frame. Sliding rods are fixedly mounted at the upper ends of the interiors of the sliding grooves, the sliding rods are slidably sleeved with mounting blocks, the bottom ends of the pair of mounting blocks are connected with the two ends of the connecting shaft correspondingly, first linear motors are fixedly mounted on the two sides of the upper end face of the mounting frame correspondingly, and a second linear motor is fixedly mounted between the moving ends of the pair of first linear motors; according to the photovoltaic panel cleaning machine, the practicability of the photovoltaic panel cleaning machine can be effectively improved, and the photovoltaic panel cleaning machine has high practical value.

The invention relates to a silicon-based negative electrode material based on metal oxide coating and preparation and application thereof, and a preparation method of the material comprises the following steps: S1, putting a silicon-based material into a solvent for ultrasonic dispersion to obtain a uniform suspension; s2, adding a metal oxide precursor into the suspension obtained in S1, and carrying out hydrolysis or condensation reaction to generate a continuous metal oxide coating layer on the surface of the silicon-based material in situ; and S3, after the reaction is finished, centrifugally separating, washing and drying the obtained product to obtain the silicon-based negative electrode material, namely a target product. Compared with the prior art, the method provided by the invention is simple in process, low in cost and good in repeatability, and the obtained coated silicon material has excellent structural stability and electrochemical performance and has a wide application prospect in high-energy-density lithium ion batteries and all-solid-state batteries.

The utility model provides a convertible adjusting three-ball-seat trailer assembly. The convertible and adjustable three-ball-seat trailer assembly comprises a fixing frame, a first ball seat and a second ball seat, the fixing shaft is mounted in the fixing frame through a connecting structure, a second mounting groove is formed in the position, close to the top end, of the outer surface of the fixing shaft, a first butt joint groove is formed in the inner surface of the fixing frame, and a first ball group is arranged between the first butt joint groove and the second mounting groove; a butt joint shaft is fixedly connected to the outer surface of the fixing frame, and a plurality of fixing holes are formed in the outer surface of the fixing shaft; and the mounting frame is mounted on the outer surface of the fixing shaft through a connecting structure, a butt joint frame is fixedly connected to the front face of the mounting frame, and a second butt joint groove is formed in the inner surface of the butt joint frame. According to the trailer assembly capable of converting and adjusting the three ball seats, rapid storage can be achieved through the design, and exposure of the ball heads is avoided.

The utility model relates to the technical field of service desks, and discloses a movable information consulting service desk which comprises a service desk body, the bottom of the service desk body is fixedly connected with cushion legs, a moving mechanism is arranged in the service desk body, and a lifting mechanism is arranged in the service desk body. The moving mechanism comprises a sliding assembly and a moving assembly, the sliding assembly is arranged in the bottom of the service desk body, and the moving assembly is arranged at the bottom of the sliding assembly. According to the movable service desk for information consultation, the arranged moving mechanism and the sliding plate are slidably connected into the service desk body to limit the clamping base, so that when the clamping base moves downwards to drive the universal wheels to move, the clamping base cannot be separated from the service desk body, the stability of the device in use is guaranteed, meanwhile, a retraction spring is arranged at the top of the sliding plate, and the service desk is convenient to use. And after the sliding plate moves upwards, the sliding plate is automatically lifted and supported, so that the universal wheels cannot automatically fall down after retracting into the service desk main body.

The utility model discloses a shield tunneling machine hobbing cutter shaft machining device, which belongs to the technical field of shield tunneling machine cutter machining, comprises a base, and is characterized in that two groups of sliding rails are arranged at the top of the base, a tailstock assembly and a clamping mechanism are arranged at the top of the base, and a driving mechanism is arranged between the tailstock assembly and the clamping mechanism; the tailstock assembly and the clamping mechanism are both slidably connected to the outer portion of the sliding rail, the clamping mechanism comprises a mounting frame, a servo motor is arranged on one side of the mounting frame, the output end of the servo motor penetrates through the mounting frame and is provided with a hydraulic chuck, and the tailstock assembly comprises a fixing frame; when the shield tunneling machine hob machining device is used, hob machining can be rapidly achieved, subsequent procedure conversion is more convenient, the machined shield tunneling machine hob does not need to be disassembled and assembled again, one-time full-automatic machining is completed, the datum conversion error problem caused by multi-procedure dispersed machining is effectively reduced, and the machining efficiency is improved. And the machining accuracy can be further ensured.

The present application relates to a wastegate for an engine system, and provides a method and system for a wastegate for a turbocharger, the wastegate including a valve plate, a valve actuation mechanism, and a bifurcated wastegate passage. In one example design, the wastegate may include a valve plate having an interior with a multi-planar curved surface and a first mating feature centered along the curved surface, the curved surface forming a raised edge and a side opening on opposite sides of the valve plate; and a passage bifurcated by a central wall, the end of the central wall including a second mating feature adapted to coplanarly contact the first mating feature. The first mating feature may be a rib or groove formed on the valve plate, and the second mating feature may be one end of the central wall.

The invention provides an artificial leather hardness detection device, and relates to the field of artificial leather detection.The artificial leather hardness detection device comprises a supporting base, a detection device, a pressing device and a control system.A linear module drives a pressing upper cover to descend, so that the pressing upper cover and the supporting base clamp a detection sample of artificial leather; then the thrust meter is driven by the rotating disc to carry out movement detection, after a large arc-shaped detection track is formed, the thrust meter is driven by the double reverse lead screw motor to carry out linear movement detection, two linear detection tracks are formed, finally, the operation is repeated, and after a small arc-shaped detection track is formed, another two linear detection tracks are formed; according to the artificial leather multi-point detection device, the detection track is detected, detection data on the detection track are transmitted to the control system, and finally the detection data are displayed on the display end by the control system, so that multi-point detection can be more accurately performed on artificial leather, and meanwhile, the detection data and a comprehensive result can be more intuitively observed.

The utility model relates to a convertible trailer connecting piece. Belongs to the technical field of tow hooks. The trailer arm is used for being connected with a towed vehicle, and the ball head piece is used for being connected with the towed vehicle. The device further comprises a connecting base and a conversion piece. A plurality of mounting holes which are vertically and linearly arranged are transversely formed in the connecting seat in a penetrating manner, and the back part of the connecting seat is fixedly connected with the end part of the trailer arm; the conversion piece comprises a body part and two connecting blocks, the body part is used for mounting the ball head piece, the two connecting blocks extend out of the body part and are used for being connected with the connecting seat, and each connecting block is provided with an upper bolt hole and a lower bolt hole; the ball head piece comprises a ball head seat, a connecting part and at least two ball heads, wherein the connecting part is arranged on the back of the ball head seat and used for being connected with the body part, and the at least two ball heads are arranged on the ball head seat. According to the utility model, the ball head piece with the plurality of ball heads is arranged, and the conversion piece is arranged between the ball head piece and the connecting seat, so that the ball head piece and the conversion piece can be conveniently disassembled and assembled.

The application discloses a split and combined medical bed and chair, which comprises a frame, a base module and a wheelchair module. The base module is provided with a first sliding part and a first turnover part. The first sliding part is slidingly arranged on the frame, and the first turnover part is rotationally connected with the first sliding part. When the first turnover part is turned over relative to the first sliding part, the first sliding part moves horizontally on the frame. The wheelchair module is provided with a second sliding part and a second turnover part. The second sliding part can be supported by the frame or separated from the frame by moving relative to the frame. The second turnover part is rotationally connected with the second sliding part. When the second turnover part is turned over relative to the second sliding part, the second sliding part moves horizontally on the frame. The application can be folded and changed between the accompanying bed, the multi-person seat and the wheelchair, and can meet the multiple requirements of the multi-person seat in the daytime, the lying of the patient at night and the movement of the patient with difficulty in moving.

This utility model discloses a steaming and color-fixing device for blanket production, relating to the technical field of steam color-fixing equipment. It includes a steam box with a lid hinged to one side of the front end. The device utilizes a heater, nozzle, and vaporization plate to quickly convert hot water into steam, improving the uniformity of steam generation and enabling comprehensive steaming and color-fixing of the blanket. Furthermore, the cooperation of a first support rod, a second support rod, and a slider allows the blanket to be folded from both sides, preventing wrinkles on the blanket surface and ensuring more even steam adsorption, thus achieving thorough color-fixing. The combination of a drainage trough and a drainage pipe facilitates timely wastewater discharge, improving the ease of cleaning and maintaining dryness inside the steam box. Ultimately, this solves the problems of uneven steam distribution and inconvenient wastewater discharge in existing devices.

The invention discloses a traditional Chinese medicine formula for treating idiopathic pulmonary fibrosis and a preparation method of the traditional Chinese medicine formula, the traditional Chinese medicine formula consists of twelve raw material medicines in specific parts by weight: radix glehniae, radix ophiopogonis, astragalus membranaceus, codonopsis pilosula, selfheal, oyster, processed pinellia ternate, edible tulip, seaweed, concha meretricis seu cyclinae, rhizoma sparganii and curcuma zedoary. The composition can effectively inhibit fibroblast proliferation and activation and reduce extracellular matrix secretion, and can play an anti-fibrosis role by inhibiting TNF-alpha inflammatory factors and NF-kappa B signal pathways, clinical tests show that the composition can significantly improve clinical symptoms of patients and delay lung function decline, and is good in safety and suitable for clinical application. The invention also provides a preparation method of the composition, various dosage forms such as decoction, granules, freeze-dried powder and the like can be prepared, the preparation process is simple and convenient, the composition is suitable for industrial production, and a safe and effective new traditional Chinese medicine treatment choice is provided for idiopathic pulmonary fibrosis.

This utility model relates to the field of cashmere combing and discloses a stable feeding structure for a cashmere combing machine. The structure includes a middle plate, a support plate fixedly connected to the top of the middle plate, a side plate fixedly connected to the top of the support plate, a side motor fixedly connected to one side of the side plate, and a rotating roller connected to the output shaft of the side motor via a coupling. This stable feeding structure for the cashmere combing machine, through the arrangement of the middle plate, support plate, side plate, side motor, rotating roller, conveyor belt, soft rubber plate, rotating plate, directional motor, clamping frame, lifting sleeve plate, rear rubber pad, lifting support plate, front rubber pad, and lifting side column, makes the stable feeding structure of the cashmere combing machine more convenient to use. It can stably feed cashmere combing machines of different heights, adapting to cashmere combing machines of varying heights, improving the overall structural adaptability to the environment, and reducing subsequent operating costs.

This invention belongs to the field of polymer materials technology and discloses a high-temperature resistant, high-transmittance nylon copolymer, its preparation method, and its applications. Terephthalic acid, isophthalic acid, 1,4-cyclohexanedicarboxylic acid, and hexamethylenediamine are selected as raw materials. The preparation process uses deionized water as a solvent, mixing all raw materials and solvent in a specific ratio and adding them to a reaction vessel. Through copolymerization, a nylon copolymer is formed. This nylon copolymer, due to the introduction of rigid benzene rings and aliphatic six-membered ring structures into the amorphous polymer PA6I macromolecule, maintains high transmittance while increasing the material's heat resistance. This invention sets technical indicators in the copolymerization salt formation process, ensuring controllable copolymer salt quality and minimizing the impact of copolymer salt quality issues on subsequent polymerization. No additional catalysts or antioxidants are required during preparation, reducing production costs. Furthermore, the preparation process does not require maintaining high temperatures and pressures, facilitating industrialization while reducing production costs.

The invention discloses a multi-modal model-based target detection method and system, electronic equipment and a medium. The method comprises the steps of obtaining a to-be-detected image, a depth image and millimeter wave signal data; performing feature mapping on the to-be-detected image and the depth image through a modal mapping module of a multi-modal model to obtain first feature data, and performing matrix transposition operation on the millimeter wave signal data to obtain second feature data; performing feature fusion operation on the feature data through an adaptive fusion module to obtain fused features; performing feature coding on the fusion features through a global encoder to obtain a first feature map and a second feature map; inputting the first feature map and the second feature map into a target decoder for fusion coding operation, and outputting a category vector and a target frame vector; and marking the target object on the to-be-detected image according to the category vector and the target frame vector to obtain a detection result. According to the embodiment of the invention, the target recognition precision can be improved, and accurate multi-target detection is realized.

This invention discloses an integrated sensing, driving, and control system and method for micro-nano robots based on an optical communication protocol. The system includes a control module and connected optical communication, multimodal sensing, driving, and power management modules. The optical communication module uses a preset protocol to achieve bidirectional conversion between optical and electrical signals. The downlink uses PWM encoding and near-infrared light, while the uplink uses Manchester encoding and blue light. The multimodal sensing module integrates multiple sensors, and the sampling parameters are dynamically configured by the control module. The driving module converts control commands into PWM signals to precisely drive micro-actuators. The power management module switches between working and sleep modes according to commands. The control module is responsible for command decoding and system scheduling. This system achieves efficient collaboration of communication, sensing, driving, and control on a single chip, featuring high integration, reliable communication, low latency, and low power consumption. It provides a core technology solution for the application of micro-nano robots in complex environments such as biomedicine and environmental monitoring.

The invention provides a two-shaft two-frame rotating device suitable for assembling a polyhedral optical window assembly, and relates to the technical field of optical machine assembling and adjusting, and the two-shaft two-frame rotating device comprises an inner frame assembly which is connected with an optical window frame and is used for driving the optical window frame to rotate along the longitudinal axis; the inner frame rotating assembly is connected with the inner frame assembly and used for driving the inner frame assembly to rotate; the outer frame assembly is connected with the inner frame assembly and the inner frame rotating assembly and used for driving the inner frame assembly to rotate, so that the light window frame connected to the inner frame assembly rotates along the transverse axis of the light window frame; the outer frame rotating assembly is connected with the outer frame assembly and used for controlling the outer frame assembly to rotate; and the supporting assembly is used for supporting the outer frame rotating assembly. The rotating device provided by the invention is applied to posture adjustment of the polyhedral light window assembly, and can quickly and conveniently convert the working surface of the light window shell in the polyhedral light window assembly, so that the light window mounting surface in the light window shell is in a horizontal state, and the order difference adjustment and the bonding operation of the light window are convenient to implement.

The present invention relates to a measuring device for detecting residual stress of transparent polymer materials and a method for measuring residual stress. The measuring device is composed of a measuring platform, a light source, a first polarizer, a first quarter wave plate, a ball screw device, a laser, a reflector device, a second quarter wave plate, a second polarizer, a CCD camera and a transparent polymer material model. The measuring device of the present invention is provided with a plurality of slideways on the measuring platform, and a plurality of optical components involved in the photoelastic method and the astigmatism method are assembled with the slideways in sequence by installing a magnetic base. During the measurement process, the corresponding optical components can be removed or the corresponding positions of the optical components in the slideways can be adjusted according to different measuring methods, thereby meeting the requirements of different measuring methods.

The utility model discloses a dryer discharging device which comprises a workbench, the top of the workbench is fixedly connected with a discharging barrel, the top of the discharging barrel is fixedly connected with a motor, an output shaft of the motor is fixedly connected with a connecting block through a coupler, and one side of the connecting block is fixedly connected with a telescopic sleeve plate. Through the arrangement of the workbench, the unloading barrel, the motor, the connecting block, the telescopic sleeve plate, the extension plate, the movable column and the bottom baffle, the unloading device can be used more conveniently, materials needing to be unloaded cannot be stacked into a conical shape when the unloading device collects the materials, and the loading capacity which can be achieved by the unloading device is also increased; the use efficiency of the unloading device is improved, the number of unloading devices needed during unloading is reduced, the use cost of the unloading device is reduced, the working time of workers is shortened, and long-term use of the unloading device is facilitated. The device solves the problem that current internal loading is not uniform.

This invention provides an energy-saving building lighting structure, relating to the field of building top-floor structure technology. It includes a skylight glass roof panel, photovoltaic lighting components, and a water-guiding pipe assembly. The skylight glass roof panel has a central water-guiding hole, and the photovoltaic lighting components are installed around the four sides of the central water-guiding hole. Several roof panel water-guiding channels are formed between the photovoltaic lighting components. This invention, through the spherical structure on the photovoltaic lighting components, can better capture sunlight at all times of the day, and provide supplemental lighting to the interior through the lighting lamps in the lower lighting tubes. Simultaneously, the roof panel water-guiding channels guide rainwater and sewage to the central water-guiding hole and the side water-guiding holes, thereby allowing them to be discharged into the sewer through the water-guiding pipe assembly, preventing rainwater accumulation and damage to the photovoltaic components.

The utility model relates to a pedal stool which is characterized in that the pedal stool comprises side plates on two sides and a pedal assembly arranged between the two side plates, the pedal assembly comprises more than one horizontally arranged bottom pedal and a top pedal, two sides of the bottom pedal are respectively and detachably connected with the side plates, and the top pedal is connected with the side plates. And the top pedal is rotationally arranged between the two side plates. By the adoption of the technical scheme, a modular combined framework is adopted, the height expandability is achieved through the multiple stages of detachable pedals, assembling is easy and convenient, and the modular production cost is low; due to the structure formed by the side plates and the pedal, loads are uniformly distributed, the stability is high, and the use safety of children is met; by rotating the top pedal, the top pedal can be used as a backrest, the bottom pedal can be used as a stool surface, children can conveniently use the chair as an arm chair, and the chair is high in functionality, easy to operate, convenient to convert and high in practicability.

The utility model relates to a rifling bullet and shotgun bullet comprehensive launching device, and belongs to the technical field of weapons. The shape of the comprehensive shotgun bullet corresponds to that of the rifling bullet, and the comprehensive shotgun bullet and the rifling bullet can be launched through the rifling The comprehensive shotgun comprises a comprehensive shotgun head and propellant powder; the comprehensive shotgun bullet head comprises a main bullet head and a sub-bullet head; when the rifling launching device is used for launching, the propellant powder generates impact force, the main warhead is rotationally launched through the rifling of the rifling launching device, the branch warheads are separated from the main warhead, and a shotgun launching mode is formed and launched to a shooting target. The rifling projectile can be launched, and the shotgun projectile can also be launched.

The utility model relates to steel warehouse shed material cleaning technical field, concretely relates to a device for processing steel warehouse shed material in factory building, including the guide rail and sliding assembly of fixed establishment in factory building, sliding assembly is slidably arranged on the guide rail, and the sliding assembly below is equipped with the lifting rope, the lower end of lifting rope is connected with the hose, one end of hose is connected with outside air source, the other end of hose is connected with the hard pipe, the hard pipe is used for processing shed material to stretch into the steel warehouse, the sliding assembly is driven along the guide rail sliding by pulling the pull rod, and the pull rod is still equipped with under the sliding assembly, and the pull rod can drive the sliding assembly to slide along the guide rail. Not more than all put on, more words are put on to reduce. The device in the utility model can move flexibly according to the distribution of steel warehouse in factory building, and then can remove the shed material in the steel warehouse flexibly, and the operation is simple and practical.

The utility model relates to the field of valve rod machining, and discloses a deburring device for valve rod machining, which comprises a bearing plate, the top of the bearing plate is fixedly connected with a vertical plate, one side of the vertical plate is fixedly connected with a motor, and an output shaft of the motor is fixedly connected with a rotary grinding column through a coupler. And one end of the rotary grinding column is fixedly connected with a connecting column. According to the deburring device for valve rod machining, through the arrangement of the bearing plate, the vertical plate, the motor, the rotary abrasion column, the connecting column, the water tank, an air spraying pipe, air spraying equipment and an air suction pipe, the deburring device can be used more conveniently and rapidly, scraps attached to the periphery of a valve rod with burrs taken out can be cleaned away, workers do not need to independently remove the scraps for the valve rod, and the working efficiency is improved. And the working content of workers is reduced, the working complexity of the workers is reduced, the working time of the workers is shortened, the overall machining efficiency of the valve rod is improved, and long-term use of the deburring device is facilitated.

The utility model discloses a conductor connecting structure of a single-sided PCB (printed circuit board), which comprises the single-sided PCB, a copper foil circuit layer is arranged on the front surface of the single-sided PCB, a copper foil circuit is not arranged on the back surface of the single-sided PCB, a through hole is arranged on the single-sided PCB, the through hole penetrates from the front surface of the single-sided PCB to the back surface of the single-sided PCB, a conductor plug-in is arranged in the through hole, and the conductor plug-in is connected with the conductor plug-in. The conductor plug-in comprises a plug-in pin and a plug-in connector, the plug-in pin is inserted into the through hole from the reverse side of the PCB single-sided board, extends to the front side of the PCB single-sided board and is connected with the copper foil circuit layer to form electrical conduction, and the plug-in connector is located on the reverse side of the PCB single-sided board and is connected with the electronic component. According to the utility model, the manufacturing of standard parts is realized, the production efficiency is improved, the production and PCB incoming material cost is reduced, and the requirement of positive and negative conversion of the electrical properties of the single-sided PCB can be well met.