34results about How to "Avoid outside contact" patented technology

The present invention provides a stem cell expansion culture system and a stem cell expansion culture method. The stem cell expansion culture system comprises a cell culture box, a cell printing headand a cell culture unit driving device; the cell culture box is used for accommodating cell culture units; the cell printing head is used for printing a biological material containing stem cells to the cell culture units; and the cell culture unit driving device at least is used for grasping the cell culture units from the cell culture box and / or putting the cell culture units into the cell culture box. The cell printing head cooperates with the cell culture unit driving device to print the biological material containing the stem cells onto the cell culture units, so that the stem cells can grow in a three-dimensional external environment and thus have sufficient growth space, and the stem cell expansion culture system can better preserve various differentiation potentials of the stem cells, can also reduce frequency of cell passage operations, reduces risks of contamination, and achieves high-quality and high-efficiency stem cell culture.

The invention relates to an octagonal closed-type bearing bracket connected with a shell and belongs to the technical field of fluid machinery and fluid engineering equipment. The shape of a bearing bracket body is composed of three different shapes, wherein the appearance of the section of the front bearing bracket body is in an octagonal shape; the appearance of the section of the middle bearing bracket body is in a circular shape to be connected with one half of the octagonal shape; and the appearance of the section of the back bearing bracket body is in a circular shape. The back part and middle part of the bearing bracket are provided with various positions and convex platforms, which need to be drilled, according to user requirements; and the suitable positions on the octagonal-shaped surface of the bracket are directly drilled. When the bearing bracket needs to be insulated or cooled and washed in a closed manner, the drilled convex platforms do not need to be arranged on the bracket, and pipeline connection and piping are very convenient; an axial space which needs to be reserved to mount a mechanical seal pressing cover or a filler seal pressing cover is saved, the axial size of the bearing bracket is shortened and the strength of a rotating shaft is effectively improved; and the mould cost, manufacturing cost and equipment management cost of equipment are reduced.

The invention belongs to the technical field of electronic equipment, and discloses a folding display device, a mobile terminal and a display method, the folding display device comprises a shell and aflexible screen, and the flexible screen is used for displaying an object and comprises a first part, a second part and a bendable third part; wherein the shell comprises a shell front surface, and the first part is supported on the shell front surface in a sliding manner; the shell further comprises a containing groove extending parallel to the front face of the shell, and when the third part isbent, the second part can slide into the containing groove. The mobile terminal comprises the folding display device. The display method comprises the steps that the state of the flexible screen is detected; and respectively controlling the display of the first part, the second part and the third part according to the states. According to the invention, the flexible screen can be folded and stored in the accommodating groove, so that the flexible screen is prevented from being contacted with the outside; by detecting the state of the flexible screen and controlling the display area of the flexible screen, the display state of the flexible screen is enriched.

A new energy automobile battery heat dissipation mechanism disclosed in the invention comprises a bottom plate, a main body bin is installed at the top of the bottom plate, a cooling liquid tank is installed at the top of the main body bin, a water pump is installed at one end of the top of the main body bin, and the input end of the water pump communicates with the interior of the cooling liquid tank; and a mounting cover is mounted at the end, close to the water pump, of the main body bin, a spiral groove is formed in the main body bin, a heat exchange pipe is arranged in the spiral groove, and fans are symmetrically mounted on the two sides of the end, away from the mounting cover, in the main body bin. Through cooperative use of the water pump, the cooling liquid box, the spiral groove, the heat exchange pipe, a sieve plate, the fan and a heat conducting plate, the fan can be matched with a heat dissipation pipe to conduct air blowing cooling on cooling liquid passing through the heat dissipation pipe after heat absorption while conducting air blowing cooling on a heat dissipation rod, and through complementation of an air cooling structure and a water cooling structure, the cooling effect of the heat dissipation mechanism on the automobile battery pack can be greatly improved.

The invention relates to the technical field of new energy vehicles, and discloses a hidden outdoor charging pile for new energy for increasing the field use efficiency. The pile comprises a first frame body, and the outer side of the first frame body is movably connected with a movable plate; the first frame body is partially hidden in the second frame body; the movable plate spreads out to shield the frame opening of the first frame body; direct contact between the charging pile in the first frame body and the outside is avoided; the charging pile is prevented from being exposed to wind andsun; the service life of the charging pile is prolonged; the position of the first frame body is lower, thereby increasing the efficiency of use of a field, people can have a rest and have entertainment; a touch plate moves downwards to enable the rack to move leftwards to cause a gear on the left side to rotate, a power source is provided for subsequent lifting operation and opening operation, linkage between structures is improved, operation is more convenient, the gear rotates to cause the first frame body to move upwards, the movable plate does not shield a frame opening of the first framebody any more, a charging pile is convenient to use, and the automation degree is high.

The embodiment of the invention provides a paper-plastic pipe preparation method and a paper-plastic pipe, and relates to the technical field of paper-plastic products. The paper-plastic pipe preparation method comprises the following steps that: an oxygen barrier material is arranged on a first surface of a paper layer to form an oxygen barrier film; a waterproof material is arranged on a second surface of the paper layer to form a second waterproof film; a waterproof material is arranged on the surface of the oxygen barrier film to form a first waterproof film and obtain a paper-plastic sheet, and the paper-plastic sheet comprises the first waterproof film, the oxygen barrier film, the paper layer and the second waterproof film which are stacked in sequence; and the paper-plastic sheet is subjected to curling and edge sealing waterproof treatment to obtain the paper-plastic pipe. The paper-plastic pipe preparation method can realize the technical effect of improving the waterproof performance of the paper-plastic pipe on the premise of ensuring environmental protection and recyclability.

Disclosed is a layered regenerative denitration burner. The layered regenerative denitration burner comprises: a burner body, which includes a gas flow passage, a regenerative chamber and a combustion chamber which are connected in series, wherein the regenerative chamber includes an inner high-temperature regenerative chamber and an outer low-temperature regenerative chamber, the inner high-temperature regenerative chamber communicates with the combustion chamber, the outer low-temperature regenerative chamber encircles at least a part of the outer surface of the inner high-temperature regenerative chamber, partition walls are arranged between the inner high-temperature regenerative chamber and the outer low-temperature regenerative chamber, and the outer low-temperature regenerative chamber comprises a denitration regenerative chamber and a low-temperature regenerative chamber in turn in a direction away from the gas flow passage; a gas flow driving member that is arranged between the inner high-temperature regenerative chamber and the combustion chamber; catalyst inlets disposed on the gas flow passage; openings arranged on the burner body and communicating with the low-temperature regenerative chamber; and gas inlets communicating with the combustion chamber. The usage of the burner can significantly reduce nitrogen oxide emissions in flue gases as well as heat losses.

The invention discloses a constant weight measuring system, a constant weight measuring device and a measuring method. The constant weight measuring device comprises: a first processing structure, wherein the first processing structure is used for removing volatile substances of a sample, and the first processing structure is provided with a first placing part for placing a container; a second processing structure which comprises a weighing element and a temperature adjusting assembly, wherein the weighing element is provided with a second placing part for placing the container, and the temperature adjusting assembly is used for heating a sample placed in the container on the second placing part; and a transferring mechanism which is used for transferring the container between the first placing part and the second placing part. The constant weight measuring device and the measuring method are high in measuring precision; and in this way, the constant weight measuring system comprisingthe constant weight measuring device is high in measuring precision.

The invention discloses a film coated aluminum alloy template and a film coating technology thereof. The film coated aluminum alloy template comprises an aluminum alloy template base material and a coating, and is prepared by subjecting the aluminum alloy temperature base material to surface shot blasting, cleaning, drying, coating spraying and curing. The coating is prepared from 30wt%-45wt% of acrylic resin, 14wt%-22wt% of amino resin coating, 15wt%-40wt% of highly-weather-resistant pigment, 10wt%-15wt% of diluting solvent, 0.5wt%-1.5wt% of polymeric dispersant, 0.5wt%-0.8wt% of anti-settling agent and 0.8wt%-1.2wt% of high-speed flatting agent. The film coated aluminum alloy template is provided after repeated tests, a film coating technology is improved at the same time, and by spraying surface processing materials including the acrylic resin, the amino resin coating, the highly-weather-resistant pigment and the like on surfaces of the aluminum alloy temperature base material, thefilm coated aluminum alloy template obtained after resin is cured is large in recyclable times, great in concrete forming effect and easy to demould and has less pollution to environments.

The invention provides a computer protection chassis with shock absorbing function, which comprises a base, a protection shell, a top cover, a chassis body and a hanging frame. The bottom of the support plate is fixedly pasted with a rubber pad. The outer sheath is fixedly welded on the top of the support plate. The bottom end of the spring is fixedly welded on the top of the support plate, and the top end thereof is connected with the fixed plate. The inner sheath is fixedly welded to the bottom of the fixing plate and is positioned on the inner side of the outer sheath. The top of the bottomplate is provided with a positioning frame. The bottom of the machine case is defined in a positioning frame. The top of the machine case body is provided with a hanging frame through bolts. The topof the hanger is fixedly connected with the bottom of the top cover through bolts. The top cover is buckled on the top of the protective shell. The computer protection chassis of the invention can avoid the direct vibration caused by contacting with the outside world. The invention is provided with three-stage shock-proof measures, which protects the chassis from damage.

The invention relates to a high-purity graphite powder processing device which comprises a roasting box and triangular plates. A fixing base is fixed to the arc-shaped side wall of the roasting box, a motor is fixed to the fixing base, and a first transmission wheel is fixed to an output shaft of the motor. An air inlet is formed in the middle of the rear side of the roasting box, a first rotating shaft is arranged in the middle of the front side of the roasting box, two second transmission wheels are fixed to the first rotating shaft, and one second transmission wheel is in transmission connection with the first transmission wheel through a transmission belt. The six triangular plates are annularly and uniformly distributed in the roasting box, and second rotating shafts at the front ends of the triangular plates are in transmission connection with third transmission wheels through clutches. High-purity graphite powder to be processed is put into the triangular plates of the roasting box from a feeding port, the high-purity graphite is roasted through the triangular plates, the distance between the roasting box and the triangular plates prevents the triangular plates from making direct contact with the outside, and the heat loss of the triangular plates is reduced. High-purity graphite powder remaining on the arc-shaped surfaces of the triangular plates is scraped off by cleaning scrapers, and the self-cleaning effect of the device is achieved.

The invention discloses a filling nozzle of a liquid filling machine. The filling nozzle comprises a filling nozzle end and a filling head which are connected. A first support device and a second support device are arranged on the outer wall of the filling head. The first support device is connected with a first axle which is connected with a rotatable first balancing rod. The two ends of the first balancing rod are connected with a first baffle and a first iron block respectively. The second support device is connected with a second axle which is connected with a rotatable second balancing rod. The two ends of the second balancing rod are connected with a second baffle and a second iron block respectively. The first baffle and the second baffle are located at the bottom of the filling head. By means of the filling nozzle, it can be avoided that rapid-outflow liquid is splashed out of a packaging object when a packaging object opening pipe is filled with the liquid, and meanwhile the liquid dropping phenomenon can be avoided.

The invention discloses an exhibition goods shelf having a dustproof function. The exhibition goods shelf comprises an exhibition shelf body, wherein a base, a supporting frame, a placement frame, a detection device, a warning device and a control device are arranged in the exhibition shelf body, the supporting frame is fixed to the base, the placement frame is transversely arranged on the supporting frame, a dustproof plate is arranged on the placement frame, the detection device and the warning device are arranged on the exhibition shelf body and are both connected with the control device, an infrared ray detector is arranged on the placement frame, and both an image pickup mechanism and the infrared ray detector are connected with the control device. The dustproof plate is arranged on the exhibition goods shelf, direct contact between goods and the outside is effectively avoided, dust accumulation on the exhibition goods shelf is decreased, more dust accumulation on goods is avoided, and the cleaning time of workers is effectively shortened. The detection device is arranged on the exhibition goods shelf, the goods situation on the exhibition goods shelf is detected through the detection device, and the problem of difficult goods replenishment of a warehouse or a shopping mall is very well solved.

The invention discloses a child safety seat used for a bicycle. The child safety seat comprises a bottom board, fixing frames, fixing screws, a protective cover, safety fixing belts and leg containingregions. The fixing frames are arranged at the bottom of the bottom board, the fixing screws are fixed to a bicycle rear seat through fixing holes in the fixing frames, the protective cover is arranged above the bottom board and is square, a protective cover lid is arranged above the protective cover, the safety fixing belts are arranged on the surface of the bottom board and on the back of the protective cover, and the left side and the right side of the front side of the bottom board extend downwards to form the leg containing regions. The child safety seat is suitable for being used by aninfant and can be used under the condition of bad weather such as rainy days or windy days, the infant is protected in all directions and prevented from making unexpected contact with the outer side when sitting on the rear seat, and the child safety seat is more practical, convenient to use and safe.

The embodiment of the invention relates to the technical field of heat dissipation, and particularly discloses an electronic device which comprises a shell, a heating element, a centrifugal fan and a flow guide assembly. The shell is provided with an accommodating space, and the shell has a heat-conducting property; the heating element is located in the accommodating space, the heating element is installed on the inner surface of the shell, and the heat generated when the heating element works is conducted to the shell; the centrifugal fan is mounted on the outer surface of the shell; the flow guide assembly is arranged on the outer surface of the shell and is provided with a plurality of heat dissipation channels, the heat dissipation channels are distributed around the centrifugal fan, and wind generated by the centrifugal fan can be dispersed through the heat dissipation channels, wherein the shapes of the plurality of heat dissipation channels are the same as the flow field of the wind generated by the centrifugal fan. Through the above mode, the embodiment of the invention can realize smaller wind resistance and a good heat dissipation effect in a limited thickness space.

The invention discloses a six-axis Swiss type milling machine tool. The six-axis Swiss type milling machine tool comprises a tool body (1), vertical columns (2) which are arranged on the tool body (1), a positive axis group which is arranged on the tool body (1) and formed by a X1 axis group, a Y1 axis group and a Z1 axis group and a third axis group which is formed by a X3 axis group, a Y3 axis group and a Z3 axis group; through holes are formed in the vertical columns (2); the positive axis group and the third axis group are arranged at the same end of the tool body (1) along the X axis direction of the positive axis group in parallel. The six-axis Swiss type milling machine tool has the advantages of overcoming the technical disadvantages that the forming efficiency of workpieces is influenced due to the facts that, in the prior art, cutting tools of the Swiss type milling machine tool are installed on the same part, every cutting tool can machine after the front cutting tool achieves machining, and the workpiece forming time is not well optimized due to mutual limit of the cutting tools.

The invention provides a computer protection chassis with shock absorbing function, which comprises a base, a protection shell, a top cover, a chassis body and a hanging frame. The bottom of the support plate is fixedly pasted with a rubber pad. The outer sheath is fixedly welded on the top of the support plate. The bottom end of the spring is fixedly welded on the top of the support plate, and the top end thereof is connected with the fixed plate. The inner sheath is fixedly welded to the bottom of the fixing plate and is positioned on the inner side of the outer sheath. The top of the bottomplate is provided with a positioning frame. The bottom of the machine case is defined in a positioning frame. The top of the machine case body is provided with a hanging frame through bolts. The topof the hanger is fixedly connected with the bottom of the top cover through bolts. The top cover is buckled on the top of the protective shell. The computer protection chassis of the invention can avoid the direct vibration caused by contacting with the outside world. The invention is provided with three-stage shock-proof measures, which protects the chassis from damage.

The invention discloses a wine fermentation tank. The wine fermentation tank comprises a support frame, a motor, a sealing cover and a traction rope, wherein a fermentation tank is mounted at the top of the support frame through bolts; a wine outlet pipe is fixedly connected to the bottom of the fermentation tank; the motor is mounted on the side surface of the fermentation tank through bolts; stirring blades are welded to the side surface of a connecting shaft; through holes are reserved in the surfaces of the stirring blades; a filter screen is fixed in the support frame; the sealing cover is embedded into the top of the support frame; a fixed box is fixed on the inner wall of the support frame; second springs are wound around two ends of a movable shaft; and the traction rope is wound around the middle of the movable shaft. According to the wine fermentation tank, intermittent stirring of grape skin is realized by virtue of a simple overturning structure, so that skin residues below the blades are in full contact with wine, and the grape skin can be prevented from being broken in a stirring process; and meanwhile, by utilizing a transfer type pressure relief manner, the interior of the fermentation tank can be prevented from being in direct contact with the outside.

The invention discloses a parking pile for public bicycles, which comprises a bottom plate of the parking pile, a lock device is provided on the left half of the upper surface of the base plate of the parking pile, a locking device is provided on the outer wall of the upper half part, and an empty slot is provided behind the locking device. A protective cover is installed in the card slot, a lighting strip is installed on the wall of the empty slot, an upper cover is provided on the upper end of the lock device, and a two-dimensional code pattern is provided on the inner wall of the protective cover; in general, the present invention has the advantages of safe and convenient use and long service life. advantage.

The invention relates to an in-situ electrochemical cell for combining an electrochemical quartz crystal microbalance and a fluorescence spectrum. The in-situ electrochemical cell comprises a polytetrafluoroethylene solution cell, a horizontal cell loaded at a horizontal section and an observation channel at a cross section, wherein the horizontal cell comprises a shockproof thickened base, a first detachable cover and a second detachable cover; the observation channel is loaded at the upper part of the electrochemical cell and comprises an incident light path, a reflected light path and a pyramid quartz window; the first detachable cover and the second detachable cover are provided with three electrode fixing blocks for respectively placing a working electrode, a reference electrode and acounter electrode so as to form a three-electrode system; a light through hole is formed in the second detachable cover so as to enable the working electrode to receive fluorescence spectrum lighting; and a light path conversion device is arranged in the cross section to enable signal light reflected by the working electrode to reach a signal receiver in the horizontal direction. The problems that a conventional in-situ electrochemical cell is incompatible with a fluorescence test system, and due to insufficient solution gravity and sealing performance, the electrochemical cell leaks liquid or is not suitable for testing a water-oxygen sensitive system are solved.

The invention discloses a special-shaped gear with an internal shaping layer and its processing technology, belonging to the technical field of gear processing. A special-shaped gear with an internal shaping layer includes a special-shaped gear body, and a self-fitting gear is provided inside the special-shaped gear body. Tooth surface tube, self-fitting tooth surface tube includes a self-fitting tube and a reinforcing fixed tube, the outer end of the self-fitting tube is wrapped with a self-lubricating ring and a selectively permeable film layer, a selectively permeable film layer and a self-lubricating ring There are many small oil pockets between them. After the last process of traditional gear processing, a self-fitting tooth surface operation is added. A self-fitting tooth surface tube is added on the inner side of the gear, and the self-fitting tooth surface tube is used to fit tightly Protect the gear teeth on the surface of the gear teeth, reduce the wear of the gear teeth during transportation and movement, and ensure its precision. In addition, through the setting of the self-lubricating ring on the surface of the self-fitting tooth surface tube, the gears can be adjusted when using the gears. The surface of the teeth produces comprehensive lubrication, which eliminates the separate oiling steps in traditional installation operations.

The invention discloses a high-voltage-withstanding and corrosion-resistant power cable and a voltage withstanding method thereof. The high-voltage-withstanding and corrosion-resistant power cable comprises a cable inner core, a reserved cavity, an outer protection layer, an abutting connecting piece and a preset core layer, wherein the outer end of the cable inner core is in butt joint with the outer protection layer, the reserved cavity is reserved between the cable inner core and the outer protection layer, a nesting piece is mounted on the inner side of the outer protection layer in a nesting mode, and a sliding groove is formed in the inner side of the outer protection layer. According to the high-voltage-withstanding and corrosion-resistant power cable and the voltage withstanding method thereof, heat accumulated in the cable in the power transmission process can be stably conducted to the outside by stably matching the movable butt joint piece and the nesting piece made of the copper material, so that the situation that the cable is heated excessively is avoided; and the movable butt joint piece protruding out of the outside can stably increase the butt joint range of the cable, the effect of a grounding wire is formed when the movable butt joint piece and the ground position are installed, and the insulating performance of the cable is effectively guaranteed in cooperation with tetrafluoroethylene gas in the reserved cavity.

The invention belongs to the technical field of electronic equipment, and discloses a folding display device, a mobile terminal and a display method. The folding display device includes a casing and a flexible screen. The flexible screen is used to display objects and includes a first part, a second part and a bendable screen. The third part; the housing includes the front of the housing, the first part is slidably supported on the front of the housing; the housing also includes a receiving groove extending parallel to the front of the housing, when the third part is bent, the second part can slide into the holding tank. A mobile terminal includes the above-mentioned folding display device. The display method includes detecting the state of the flexible screen; according to the state, respectively controlling the display of the first part, the second part and the third part. The invention can fold the flexible screen and store it in the accommodation groove to avoid contact with the outside world; by detecting the state of the flexible screen and controlling the display area of ​​the flexible screen, the display state of the flexible screen can be enriched.

The invention discloses a tangible liquid crystal screen of an energy storage inverter. The tangible liquid crystal screen comprises a box body and a display screen, the display screen is arranged inthe box body, the box body is provided with a sliding device, the sliding device is rotatably provided with a moving device in a sleeved manner, the moving device comprises a screw rod, a slide bar, aconnection bar, a support plate, a cover plate and an installation base, the screw rod is threadingly connected with the slide bar, an outer wall of the slide bar is fixedly provided with the connection bar, the other end of the connection bar is rotatably arranged on the support plate in a sleeved manner, and the support plate is rotatably arranged on an outer wall of the cover plate in a sleeved manner. In this way, the operation of the display screen can be facilitated during switch-on, the display is prevented from making contact with the exterior in a long time during switch-off, false touch by other personnel is avoided, the damage to a machine is avoided, the usage cost is reduced, the installation of the display is facilitated, the installation efficiency and the installation effect are improved, the damage rate during installation of the display is reduced, the operation is simple, the practicality is high, and the promotion and the application are facilitated.

The invention discloses a cold storage, comprising: a storage body, which is provided with a partition board inside, which divides the storage body into a refrigerator room and a quick-freezing room, a first opening is arranged on the side wall of the storage body, and a first electric door is arranged at the first opening The buffer chamber has a shared side wall, the first opening is located within the range of the shared side wall, the side wall adjacent to the buffer chamber and the shared side wall is provided with a second opening, and the second opening is provided with a second electric door, The top surface of the buffer chamber is provided with a third opening; a plurality of air outlet pipes are arranged on the top of the buffer chamber in parallel at intervals, and the plurality of air outlet pipes are connected to the air inlet pipe arranged outside the buffer chamber. A first blower fan and a dehumidification structure are arranged at intervals; an air induction cover has a large opening end and a small opening end, the large opening end cover is arranged at the third opening, and the small opening end is provided with a second blower fan. The invention reduces the heat exchange between the cold storage and the outside world and reduces the entry of external humid air into the cold storage by adding a buffer room, an air outlet pipe and an air induction cover.

The invention discloses a mobile phone camera protection and isolation device, which comprises a mobile phone, a camera group, an isolation protection mechanism, a connecting mechanism, a clamping seat and an assembling mechanism, and is characterized in that the camera group is fixed on the back surface of the mobile phone, the isolation protection mechanism is installed on the mobile phone, and the isolation protection mechanism is arranged on the outer side of the camera group; the mobile phone and the isolation protection mechanism are connected and fixed by the connecting mechanism, the clamping seat is arranged on the back face of the mobile phone, an assembling mechanism is arranged on the clamping seat, the isolation protection mechanism is installed on the mobile phone, the isolation protection mechanism is used for isolating the camera set, the possibility that a camera makes direct contact with the outside is avoided. The camera is protected, different isolation protection mechanisms are selected to be installed on the mobile phone according to the camera sets distributed according to different mobile phone models, and the isolation protection mechanisms are attached to the camera sets in different shapes and distributed differently, so that the device can be used for installing the mobile phones of different models.

The invention discloses a fruit display stand capable of automatically rotating, and belongs to the field of agricultural machinery. The fruit display stand solves the problem that in the prior art, a fruit display ornament value is low. The fruit display stand comprises a base, the top of the base is movably connected with a vertically-upwards rotating shaft, the upper portion of the rotating shaft is provided with a support rod, the end, far away from the rotating shaft, of the support rod is provided with an electromotor with the vertically-downward rotating end, and the rotating end of the electromotor is connected with a containing box. According to the fruit display stand, the rotating shaft and the electromotor are arranged, the containing box can rotate, therefore, a tourist can watch fruits multidirectionally, and the visual experience of fruit watching is enhanced.

The invention relates to the technical field of roadway lighting lamps and aims to provide a mining flameproof type LED roadway lamp comprising a shell, an LED lighting module and a circuit module; aconnecting base is arranged at one end of the back face of the shell, and a connecting channel in communication with the inner cavity of the shell towards the shell direction is arranged in the connecting base; a male plug-in piece used for connecting cables is slidably connected in the connecting channel towards the direction of the inner cavity of the shell, and a female socket capable of beingplugged and connected in the sliding direction by the male plug-in piece is fixedly connected in the shell; and a controller used for controlling disconnection of the male plug-in piece and the femalesocket is arranged on the connecting base; the male plug-in piece is connected with a cable, and the male plug-in piece and the female socket are disconnected through the control device, so that thedisconnection of the circuit is carried out inside the connecting base, the generated electric arc is prevented from being directly in contact with the outside, and the power-off safety is improved; asingle mining flameproof type LED roadway lamp can be directly subjected to work of light source replacement or maintenance and the like after power failure, and the power supply is not required to be cut off.