97results about How to "Accurate connection" patented technology

This utility model discloses a high coaxiality radio frequency connector, including a male and a female connector. The female connector has three sets of connecting plates on its outer periphery, and the male connector has three sets of insertion slots on its outer periphery that mate with the connecting plates. A disassembly component for separating the male and female connectors is located beside the insertion slots. The female connector is inserted into the insertion slot of the male connector via the connecting plates, completing the coaxial connection between the male and female connectors. This utility model, through the cooperation between the connecting plates of the female connector and the insertion slots of the male connector, and the correspondence between the fastening protrusions and the positioning slots, makes the connection between the male and female connectors more precise, effectively preventing displacement or deformation of the inner and outer conductors caused by frequent insertion and removal, maintaining stable coaxiality, and ensuring signal transmission consistency and reliability.

This utility model relates to a self-cleaning air inlet protection device and an air handling unit, including a main body assembly and a self-cleaning assembly. The main body assembly includes a first connecting member, a second connecting member, and a protective net. Both the first and second connecting members are cylindrical and connected by a snap-fit ​​structure. The protective net is hemispherical and connects to the second connecting assembly. The self-cleaning assembly includes multiple support rods, a drive shaft, an impeller, and a cleaning brush. The impeller drives the cleaning brush via the drive shaft to clean the convex surface of the protective net. This utility model's self-cleaning air inlet protection device can prevent debris from adhering and is easy to install and disassemble.

The invention relates to the technical field of the building industry, and discloses a fabricated steel structure and an installation method, the fabricated steel structure comprises frame columns and frame beams, and the frame columns and the frame beams are connected in a matched mode; the modular node units are detachably connected with the frame columns and the frame beams respectively; the modularized joint unit comprises a first connecting plate and a second connecting plate, the sides, deviating from each other, of the first connecting plate and the second connecting plate are suitable for being connected with one ends of the adjacent frame columns correspondingly, and a box type steel column section is arranged between the first connecting plate and the second connecting plate; the two ends of the box type steel column section are connected with the first connecting plate and the second connecting plate correspondingly. The modularized joint units are further provided with I-shaped steel beam ends, and the two I-shaped steel beam ends are connected with the two ends of the box type steel column section respectively in the extending direction of the frame beam.

The utility model relates to a butt joint positioning device for floating bridge modules. A quick positioning and connecting device for a floating bridge and a pontoon bridge is composed of a positioning mechanism and a connecting mechanism, and the positioning mechanism is composed of a positioning rod (108), a positioning baffle (103), a movable clamping rod (106), a buffer spring (105), a steel wire rope (104) and a winch (101); the movable clamping rod (106) is connected with the positioning baffle (103) through the buffer spring (105), the positioning baffle and the winch are fixedly connected with one floating bridge or pontoon bridge unit, and the positioning rod (108) is fixedly connected with the other floating bridge or pontoon bridge unit. One end of the steel wire rope is connected with the winch (101), and the other end of the steel wire rope penetrates through a strip-shaped ring (107) arranged at the front end of the movable clamping rod (106) to be fixed to the positioning baffle (103). According to the connecting structure, accurate positioning of the connecting structure of the pontoon bridge and the pontoon bridge and rapid connection of the pontoon bridge and the pontoon bridge unit can be achieved, the butt joint time of the pontoon bridge and the pontoon bridge is greatly shortened, and the connecting efficiency of the pontoon bridge and the pontoon bridge is improved.

The invention relates to the technical field of capacitor processing equipment, and discloses a capacitor guide pin tail end stamping and cutting device which comprises a machine box and a capacitor, a feeding disc, an auxiliary disc and a stamping and cutting mechanism are arranged on the upper surface of the machine box, and the feeding disc and the auxiliary disc synchronously rotate in the reverse direction; a cutting station is arranged at the adjacent position of the feeding disc and the auxiliary disc, the feeding disc is used for conveying a capacitor to the cutting station, and a capacitor guide pin is arranged at the front end of the capacitor; according to the stamping and cutting device for the tail end of the guide pin of the capacitor, the feeding disc, the auxiliary disc and the stamping and cutting mechanism are arranged, stable clamping and fixing can be achieved when the capacitor moves to a cutting station, meanwhile, a driving stamping part and a driven stamping part synchronously approach from the two sides of the guide pin, and stamping and cutting are completed; the problems that in a traditional cutting device, due to the fact that a gap exists between a fixed blade and a guide pin, the guide pin is bent firstly and then cut, bent pin indentations are prone to being generated, and the cutting length precision is low are effectively solved.

The invention discloses a modular connecting assembly of a combustion furnace sound barrier, and relates to the technical field of sound insulation of long-acting environment-friendly combustion furnaces for oil testing. The assembly comprises a straight face connecting unit used for tightly attaching and connecting the adjacent sound insulation plates of the straight face part, the straight face connecting unit comprises a straight face reducing stud and two straight face lug plates, the two straight face lug plates are arranged in an up-down mirror symmetry mode, and the inner ends of the two straight face lug plates are fixed to the hinged side frame edges of the adjacent sound insulation plates of the straight face part respectively. The straight-face variable-diameter stud comprises a large-diameter section, a variable-diameter section and a small-diameter section which are coaxial, all the sections are in smooth transition connection, in the locking state, the two straight-face lug plates are located and connected to the large-diameter section in a sleeving mode, in the unlocking state, the straight-face lug plate on the lower side is connected to the small-diameter section in a sleeving mode, and the straight-face lug plate on the lower side is located and connected to the small-diameter section in a sleeving mode. And the straight-surface lug plate on the upper side is sleeved on the large-diameter section. The sound insulation barrier is suitable for a foldable and spliced type sound insulation barrier with a multi-face corner enclosure, the sealing performance of the connecting position is high, sound insulation is good, and disassembly and assembly and corner splicing are convenient.

The utility model discloses a heat conduction pipe provided with a heat dissipation core, and belongs to the technical field of heat conduction and heat dissipation. The heat conduction pipe provided with the heat dissipation core comprises a pipe body, a plurality of heat dissipation fins are arranged on the outer side of the pipe body, connecting pipes are installed at the two ends of the heat dissipation fins and the two ends of the pipe body, and connecting discs are installed on the outer sides of the connecting pipes. The heat dissipation mechanism comprises a center shaft, a heat dissipation core is installed on the outer side of the center shaft and is of a spiral structure, the outer side of the heat dissipation core is fixedly connected with the inner side of the pipe body, the multiple heat dissipation fins are distributed at equal intervals and are in a wave shape, the heat dissipation fins and the pipe body are integrally formed, and multiple flow guide holes are formed in the surface of the heat dissipation core; according to the utility model, the contact area and the retention time of a heat transfer medium and the heat dissipation core can be effectively increased, the transfer efficiency of heat in the pipe body is greatly improved, and the heat dissipation pipe has higher practical value.

The embodiment of the present application provides a charging plug, a charging port, equipment and a charging system, the charging plug comprises: a shell, which is provided with an external ridge and an internal projection, wherein the external ridge is distributed on the outer periphery of the internal projection, and the height of the external ridge is greater than the height of the internal projection; a magnetic attraction charging docking structure is arranged on the internal projection and comprises: at least one magnetic conduction positioning contact, which corresponds to one end of a corresponding magnetic conduction column and is used for magnetic coupling with a magnetic attraction contact arranged on a charging port; a power output contact is electrically connected with a charging transmission contact arranged on the charging port; a Hall proximity switch is arranged adjacent to the other end of the magnetic conduction column and is used for sensing the magnetic field change of the magnetic attraction contact of the charging port focused by the magnetic conduction column. Through the charging plug and the charging port of the embodiment of the present application, the charging plug can be forced to be inserted into the charging port of the load equipment to be charged in a unique and correct docking direction, thereby avoiding polarity reverse connection.

This invention belongs to the field of pipelines, specifically relating to a prefabricated connecting pipeline to solve the problem that existing tee pipes and inner pipes, which are integrally cast, are inconvenient for production, processing, and testing. It is used to connect a filter into a pipeline and includes a main pipe body and an inner pipe. The inner pipe is installed inside the main pipe body and is detachably and sealingly connected to it. The main pipe body has at least three openings, and the inner pipe and the main pipe body form independent water flow channels. This invention allows for the installation and disassembly of the inner pipe, simplifying the molds used in the production of the main pipe body and inner pipe, facilitating processing, improving product quality, and enabling convenient testing after processing to ensure the effectiveness of the equipment.

The utility model discloses a guide assembly for a low-voltage open cabinet drawer, which comprises a lining frame and a sliding block fixedly connected with the drawer, and the inner surface wall of the lining frame is fixedly connected with a sliding rail in sliding fit with the sliding block. According to the invention, the drawer piece is pushed to enable the sliding block to slide along the sliding rail, so that the connector on the drawer piece can be accurately connected with the socket in the cabinet body to complete the guiding of the drawer piece, and when the drawer piece is opened in a large scale, the sliding sleeve can be moved to slide along the sliding plate. The sliding sleeve and the clamping seat are fixed through the fastening rod until the clamping seat sleeves the outer side part of the sliding block to be fully loaded, and the clamping seat realizes local supporting and positioning of the sliding block, so that the weight of the drawer piece can be prevented from completely acting on a small-range area of the sliding rail, the rail is effectively prevented from deforming, and even after the drawer piece is completely combined with a cabinet body, the sliding rail is prevented from being damaged. The drawer can be stably closed by moving the clamping seat to the front side of the drawer piece.

This invention relates to the field of fireboat water pump installation technology, specifically to a method for installing a water-spraying propelled fireboat's water pump. The method includes: S1. Initially positioning the water inlet channel on the hull plate, allowing the outlet flange of the water inlet channel to extend into the pump chamber; S2. Placing a dummy pump fixture in the pump chamber, the dummy pump fixture including a dummy pump body, with dummy pump feet at the bottom of the dummy pump body. The dummy pump feet are first anchored to the outlet flange of the water inlet channel using locating pins, and then fixed with bolts; a dummy pump shaft, which is a round tube, is installed on the top of the dummy pump body; S3. Butt-welding the water inlet channel to the hull plate, monitoring the relative position changes of the dummy pump shaft and the steel wire in real time; S4. After welding the water inlet channel, marking the center line of the dummy pump shaft, disassembling the fixture from the outlet flange of the water inlet channel, replacing the fixture with the actual pump, and completing the water pump installation. This installation method avoids inaccurate positioning due to welding deformation of the water inlet channel causing the center line of the water inlet channel to shift, which in turn leads to the shift of the pump shaft center line, thus improving the positioning and alignment accuracy.

This invention proposes an engineering-reinforced flame-retardant color-coated sheet, comprising: a first sheet and a second sheet. A first fastener and a second fastener are respectively provided at one end of the first sheet and the second sheet, and the first sheet and the second sheet are detachably connected via the first fastener and the second fastener. The first fastener includes two movable pins. A through hole is provided at one end of the first sheet along the width direction of the first sheet, and both movable pins are movably installed within the through hole, forming an adjustable interlocking area between the two movable pins. This invention features a novel design and simple operation. Through the setting of the first fastener and the second fastener, the pre-positioning protrusion in the second fastener ensures the accuracy of the connection end face between the first sheet and the second sheet during the connection process. Under this premise, the first fastener and the second fastener can be subsequently connected, resulting in a stable connection and accurate positioning.

The utility model relates to the connecting technical field of purline and truss, concretely is a kind of steel structure roof purline and the connecting structure of truss, including main body steel structure, the middle part of main body steel structure is embedded with two secondary purlines;A pair of installation groove is opened in the both sides of main body steel structure and with the size of secondary purline is matched;The inner wall of the both sides of secondary purline is equipped with the slide bar of one end and extends to the outside of secondary purline, the outer end of slide bar is fixed with abutment plate, the bottom end of a pair of abutment plate is inwardly inclined, the inside surface of main body steel structure is fixed with the installation plate of the abutment of abutment plate, and it is connected between both sides slide bar by elastic expansion piece. The whole connecting process is simple and fast, and the main body steel structure and secondary purline are more stable, and the main body steel structure and secondary purline are connected by internal inlaying, so that the stress requirement of purline connection can be guaranteed, and the connection between structure in indoor space visual range can be clean and neat.

This utility model discloses a high-voltage control box, relating to the field of control box structures. It includes a control box housing with several holes pre-drilled on one end face for installing and connecting high-current connectors and signal connectors. Several holes are also pre-drilled on the other end face for installing and connecting high-current connectors. A through-wall end is connected to one side of the control box housing, and a vent valve is provided on one side of the through-wall end for connecting and fixing to the side wall of the control box housing. Connecting limit blocks are connected to the bottom of the control box housing around its perimeter, and each connecting limit block has bolt holes for inserting bolts to limit and fix the control box housing. This control box has a compact and rationally designed structure, capable of accommodating multiple control units with different functions without interference, ensuring normal control operation.

The utility model relates to engineering equipment accessory technical field discloses a kind of excavator track shoe with anti-skid tooth, first refitting type track shoe includes L type main plate, convex part, track shoe pivot and butt joint part, convex part and butt joint part are placed respectively in the front and rear end of L type main plate, the side wall borehole insertion track shoe pivot of convex part, gap for next stage refitting line track shoe butt joint part insertion is set between two convex parts, butt joint groove for next stage refitting line track shoe convex part insertion is set between two butt joint parts. Refitting type track shoe connection system provides stable basis for anti-skid protruding tooth mechanism, so that anti-skid protruding tooth can effectively play a role under various terrain;With refitting type track shoe connection system jointly ensure the stability and passability of excavator under complex terrain;Both common action improves the overall performance and work efficiency of excavator, reduces failure rate and maintenance cost.

The utility model discloses a dedusting filter cartridge bottom anti-drop structure, which comprises a filter cartridge, the lower surface of the filter cartridge is fixedly connected with a threaded cylinder, the outer surface of the threaded cylinder is provided with a cover plate in a threaded manner, the cover plate is connected right below the filter cartridge in an aligned manner, the lower end of the outer surface of the filter cartridge is fixedly connected with a fixed disc, and the fixed disc is fixedly connected with the threaded cylinder. A positioning notch is formed in the surface of the fixing disc, a clamping groove is formed in the upper surface of the fixing disc, the clamping groove is aligned to one end of the positioning notch, fixing blocks are fixedly connected to the two sides of the outer surface of the cover plate, rotating heads are rotationally installed in the fixing blocks, and an adjusting head is fixedly connected to one end of each rotating head. A damping through hole is formed in the adjusting head, a damping rubber pad is fixedly attached to the inner side surface of the damping through hole, a circular limiting rod is slidably connected into the damping through hole, after positioning connection, telescopic alignment can be conducted for clamping and limiting, the structure is simple, stability is high, and falling is avoided.

The utility model relates to the technical field of semiconductor component manufacturing, in particular to a wafer basket for feeding and discharging of a manipulator, which comprises a bottom plate, upright posts, guide posts and a top plate. Stand columns are arranged on two sides of the tail and the middle of the top of the bottom plate respectively, guide columns are arranged on two sides of the head of the top of the bottom plate respectively, and the stand columns and the guide columns are equal in height; the top plate is fixed to the tops of the stand columns and the guide columns. A plurality of grooves which are provided with three open surfaces and are used for mounting wafers are uniformly distributed in the vertical directions of the stand columns and the guide columns, the non-open side of the groove of the tail stand column is arranged on the tail side, and the non-open sides of the grooves of the middle stand column and the head guide column are arranged on the outer sides. The wafer lifting basket for feeding and discharging of the manipulator is composed of the base plate, the stand columns, the guide columns, the top plate and other simple components, and compared with a special wafer conveying box and a wafer loader, the wafer lifting basket is simpler in structure, so that the manufacturing cost is reduced, the wafer lifting basket is suitable for small-batch wafer test verification scenes, and the problem that the cost of an existing scheme is too high is effectively solved.

This invention discloses a method for identifying pet breast cancer lesions based on abnormal sample DBT images in the field of pet medical imaging technology. The method acquires and preprocesses 3D images of abnormal DBT in pet breast tissue with lesion annotations, generating a 2D section sequence and a three-branch sample set. A pet breast lesion feature encoder is obtained through lesion prior comparison self-supervised training. Human breast DBT anatomical knowledge is aligned with pet data to achieve cross-species knowledge transfer. The 2D section sequence is input into the encoder and detection head to obtain 2D lesion detection results. A 3D lesion body is generated through lesion spatial trajectory growth and aggregation, and the final lesion identification result is output. This invention achieves high-precision detection relying solely on abnormal samples, eliminating the need for normal samples, diffusion models, and knowledge distillation. It adapts to the physiological structural characteristics of pet breast tissue, improves the detection effect of small lesions and the accuracy of 3D localization, and is suitable for rapid clinical screening of pet breast cancer.

The utility model relates to the technical field of biological pest control, specifically is a kind of pest luring-infection device, attract pest into device and automatically infect fungus, specific structure is: the lower end of baffle assembly is equipped with conical tube assembly from top to bottom, connection mechanism is sequentially equipped between conical tube assembly, the inside of conical tube assembly is corrugated and is set, is lure part;Conical tube assembly lower end is connected with tubular member and corrugated pipe, and tubular member and corrugated pipe are infection part, and the inside surface of infection part is covered with the medicament containing pathogenic fungus spore.The application can complete the automatic inoculation of pathogenic fungus after pest adult enters the device, and allow adult to escape after infection, return to population and further horizontally spread fungus spore, to reduce the number of pest population, reach the purpose of prevention and control.The device is simple to operate, low in cost, reusable, and has very broad application prospect.

This invention discloses a stepper motor frame assembly, including a frame structure, an upper electrode plate, and a middle electrode plate assembly. The upper electrode plate has an annular first electrode plate body and an integrally formed first electrode claw, which is bent from the first electrode plate body and extends axially. The middle electrode plate assembly includes a stacked second electrode plate body and a third electrode plate body, each having a second electrode claw and a third electrode claw arranged opposite to each other, both embedded in the inner wall of the rotor space. The frame structure includes a first frame, a second frame, and a third frame, which are injection molded together with the middle electrode plate assembly. The first frame and the second frame cooperate to form a first winding space and a first rotor cavity, and the second frame and the third frame cooperate to form a second winding space and a second rotor cavity. Each space and cavity has a common central axis. This invention solves the problems of complexity and difficult assembly of existing stepper motor frame assemblies, realizes the integrated design of the electrode plate and the frame, and improves the performance and reliability of the motor.

The utility model discloses a tank container connecting piece which comprises a frame and a storage tank, the inner bottom wall of the frame is fixedly connected with a fixing base, the upper surface of the fixing base is fixedly connected with a positioning frame, a connector is inserted into the fixing base, limiting holes are formed in the two sides of the connector, and the positioning frame is fixedly connected with the fixing base. A top block is inserted into the limiting hole, and one side of the top block is fixedly connected with a push rod. According to the tank container connecting piece, a storage tank only needs to be hoisted, a limiting rod corresponds to a limiting sliding way, then the storage tank falls, a connecting head can pass through a positioning frame and then is inserted into a fixing base, and at the moment, a worker only needs to tighten a locking handle to fix the position of a push rod; and then the fixing bolts are tightened to connect and fix the connector and the fixing base, so that the connection of the storage tank and the frame can be completed more quickly and accurately, the operation is simple, time and labor are saved, and the connection efficiency of the storage tank and the frame is greatly improved.

The utility model discloses a sampling pipe reverse blowing device for measuring coke oven gas amount by a pore plate, which relates to the technical field of instrument maintenance and comprises the pore plate, a first pressure tapping pipeline, a second pressure tapping pipeline, a first three-way valve, a differential pressure transmitter, a first heat preservation heat tracing steam pipeline and a second heat preservation heat tracing steam pipeline, one end of the first pressure tapping pipeline is communicated with the coke oven gas pipeline at the front end of the pore plate, one end of the second pressure tapping pipeline is communicated with the coke oven gas pipeline at the rear end of the pore plate, and one ends, far away from the coke oven gas pipeline, of the first pressure tapping pipeline and the second pressure tapping pipeline are communicated with the differential pressure transmitter; the first heat preservation tracing steam pipeline is communicated with the first pressure tapping pipeline, and a fifth valve is arranged on the first heat preservation tracing steam pipeline; the flow measuring device has the advantages that the flow measuring device is simple in structure and convenient to use, and the flow measuring accuracy of the orifice plate can be effectively guaranteed.

A data transmission method for a handheld ultrasonic system and the handheld ultrasonic system, the method being applied to a mobile terminal deployed with the handheld ultrasonic system, the mobile terminal comprising a first near field communication module, the method comprising: in response to a first user operation, transmitting data to the handheld ultrasonic system through the first near field communication module, acquiring identification information of a target monitor from the target monitor comprising a second near field communication module; wherein the first user operation comprises the step that a user enables the mobile terminal to be close to the target monitor; and establishing communication connection with the target monitor based on the identification information of the target monitor, and transmitting ultrasonic image data to the target monitor based on the communication connection so as to project an ultrasonic image displayed on the mobile terminal to the target monitor for display. The method and the system can solve the problem that the screen of the mobile terminal is small and is difficult to meet the requirement of multi-user simultaneous viewing, and are simple in user operation and good in user experience.

This utility model discloses a coal mine original rock grade detection device, belonging to the field of original rock grade detection technology. It includes an ultrasonic probe, with a first external threaded cylinder at the top of the probe. A first extension tube is threaded onto the first external threaded cylinder, and a second extension tube is provided at one end of the first extension tube. A connecting component is provided between the second extension tube and the first extension tube. This utility model, through the cooperation of the ultrasonic probe with the first external threaded cylinder and the first extension tube, facilitates adjustment of the extension length according to actual detection needs, improving the flexibility of the detection device's length adjustment. This enables the detection of original rock at different depths, ultimately solving the problem that the extension tube of existing coal mine original rock grade detection devices cannot adapt to slightly curved gaps. This improves the accuracy of detection, ease of operation, reliability of data transmission, service life of the device, and structural stability.

The utility model discloses a server hard disk quick dismouting positioning structure, it relates to server hard disk quick dismouting technical field, it aims at solving the process of the existing bracket in the installation, when installing the first hard disk, the hard disk connecting part and the collision of the connecting socket, there is the problem of deficiency in quick positioning installation, the practicability of whole needs to be improved, its technical scheme main points include server hard disk bracket, one end of server hard disk bracket is provided with support frame, the outer surface of support frame is provided with glue layer, the both ends position of support frame one side outer surface is fixedly connected with a first guide support and a second guide support respectively, the edge of support frame is provided with socket gap groove, one end of server hard disk bracket is provided with two guide gap groove. Reach the effect of quick positioning operation, guarantee the quick dismouting, and the hard disk connecting position will not collide with the connecting socket, and the practicability is strong.

The utility model discloses a stamping forming battery guard plate, include: mainboard, the side plate of setting in the both sides of mainboard and the bottom support of setting in the bottom of mainboard, the one side of mainboard is equipped with the reinforcing rib, and the one side of reinforcing rib is equipped with the stamping line, and the one side of reinforcing rib is equipped with a plurality of fixed holes, the top of mainboard is equipped with the roof, and the included angle department of mainboard bottom and bottom support all are equipped with the positioning slot, and the reinforcing rib of mainboard is integral forming structure with mainboard, and bottom support is integral forming structure with mainboard, and the one side of two side plates all are equipped with a plurality of mounting holes, the utility model discloses a kind of stamping forming battery guard plate, compared with traditional full CNC processing mode, production cost is significantly reduced by adopting stamping forming process, by optimizing processing flow, using stamping forming technology replaces part CNC processing step, not only reduce the use demand of high-end equipment, also reduce the dependence on professional personnel, to realize the effective control of production cost.

The utility model provides a gas steel cylinder pressure detection device which comprises a lifting inspection device, two conveying lines including a conveying belt a and a conveying belt b are arranged on the right side of the lifting inspection device, two image acquisition devices are arranged on the left side of the lifting inspection device, the lifting inspection device comprises a conveying frame, a plurality of moving blocks are arranged on the conveying frame in a moving mode, and the moving blocks are arranged on the conveying frame. An equipment box a is mounted on the side, away from the motor a, of the moving block, and a lead screw a is arranged in the middle of the equipment box a; according to the utility model, through the arrangement of the hoisting inspection equipment and the matched conveying line and image acquisition equipment, the automation and high efficiency of gas cylinder pressure detection are realized, the time and energy consumption of manual operation are reduced, the detection efficiency is improved, and meanwhile, through the structures of the screw rod a, the screw rod b, the rotating block matched with the screw rod a and the screw rod b, the motor and the like, the detection efficiency is improved. According to the gas steel cylinder detection device, precise control over steel cylinder operation is achieved, the detection effect on various steel cylinders is ensured, the detection accuracy and applicability are improved, and the use safety of gas steel cylinders is guaranteed.

The utility model discloses a forestry operation warning device belongs to forestry equipment technical field, including the horizontal pole fixed clamp, is connected in one end of horizontal pole for fixing seedling, two unfolding side arms are connected respectively through universal shaft in the other end both sides of horizontal pole, is equipped with warning light on the unfolding side arm, infrared detection device sets up on horizontal pole, and the direction of fixed clamp direction carries out detection operation, the battery is arranged in the horizontal pole, and with infrared detection device, warning light etc. Electrical element electric connection, the battery is provided with the outgoing line. The device solves the problem of seedling warning deficiency, limited coverage, poor terrain adaptability, not firm, warning lag and multi-device power supply inconvenience etc. in the forestry operation.