30results about How to "Block the impact" patented technology

The invention discloses a marine propeller protection net, which comprises a net cover arranged on the periphery of the propeller and connected with the bottom of the hull; The protective net at the bottom of the propeller, the protective net at the bottom of the propeller and the rear protective net of the propeller are connected to each other and are respectively connected to the bottom of the hull; the present invention arranges a net cover around the propeller of the ship, which does not affect the effect of the water flow and the propeller, and can block the impact of foreign objects The propeller, and debris such as weeds or fishing nets are not easy to touch the propeller, and it is not easy to wrap around the propeller, which ensures the life of the propeller and the safety of the ship.

The invention discloses a ball grinding mill. The ball grinding mill comprises a machine frame and a ball grinding barrel. A motor is installed on the lower portion of the right end of the machine frame. The output end of the motor is connected with a speed reducer. The output end of the speed reducer is connected with a transmission shaft. The transmission shaft is provided with a drive gear. The left end and the right end of the ball grinding barrel are connected to the machine frame through rotating shafts. The rotating shaft at the right end is provided with a gear, and a protection cover is arranged outside the gear and the drive gear. The protection cover is provided with a hose stretching into the protection cover. The other end of the hose is connected with a piston barrel. The ball grinding barrel comprises an inner barrel body and an outer barrel body. A cooling cavity is formed between the inner barrel body and the outer barrel body. The cooling cavity is provided with a cooling liquid inlet and a cooling liquid outlet. A sound absorption material lining layer is arranged on the inner side of the inner barrel body. A lining plate is arranged on the inner side of the sound absorption material lining layer. A lifting groove is formed in the inner wall of the lining plate. The lifting groove and the inner wall of the lining plate are both provided with wear-resisting layers. A static elimination device is further arranged at the right end of the inside of the inner barrel body. The ball grinding mill is simple in structure, convenient to use, capable of achieving sound insulation and abrasion resistance, high in stability and long in service life.

A new circulating fluidized bed radically improves the structure of circulating fluidized beds in the prior art, comprising membrane walls. The bed is characterized in that the membrane wall in a recirculation region leans outward and the membrane wall in the recirculation region is in an excessive connection with the membrane wall in an advection region in a streamlining way. The invention has reasonable design and simple structure, compared with the prior art, downstream material granular flow in the recirculation region can leave the membrane wall to greatly reduce the abrasion of the water wall, simultaneously the reflux material flow along the wall can better resist the impact of other material granules from hearth on side walls, thus reducing the abrasion of the water wall to the least and prolonging service life.

The invention provides an automobile safety belt which can prevent the upper body of a passenger from colliding forwards. The automobile safety belt comprises a left shoulder strap, a right shoulder strap, a left chest strap, a right chest strap, a left side waistband, a right side waistband, a left front waistband and a right front waistband, the upper end of the left shoulder strap and the upper end of the right shoulder strap are fixed to a first fixing ring and a second fixing ring respectively, the lower end of the left shoulder strap and the lower end of the right shoulder strap wind around a left positioning ring and a right positioning ring respectively and then are buckled by a first length adjusting buckle and a second length adjusting buckle respectively, one end of the left chest strap and one end of the right chest strap are fixed to the upper middle portion of the left shoulder strap and the upper middle portion of the right shoulder strap respectively, the other end of the left chest strap and the other end of the right chest strap wind around a first lock catch and a first spring bolt respectively and then are buckled by a third length adjusting buckle and a fourth length adjusting buckle respectively, one end of the left side waistband and one end of the right side waistband are fixed to a fifth fixing ring and a sixth fixing ring respectively, the other end of the left side waistband and the other end of the right side waistband pass around a left positioning ring and a right positioning ring respectively and are buckled by a fifth length adjusting buckle and a sixth length adjusting buckle respectively, the left front waistband winds around the left positioning ring and then is fixed to a second lock catch, and the right front waistband winds around the right positioning ring and then is fixed to a second spring bolt.

The invention discloses a floating two-stage buffer anti-collision system, and belongs to the technical field of bridge ship collision prevention systems. The floating two-stage buffer anti-collision system comprises a floating body, connecting pieces and dampers, wherein the floating body is arranged around a bridge pier; the dampers are arranged on the floating body at intervals; the dampers are connected with the bridge pier through the connecting pieces. According to the floating two-stage buffer anti-collision system disclosed by the invention, the floating body is arranged around the bridge pier, the dampers are distributed and arranged on the floating body, after a ship collides with the floating body, energy can be buffered and dissipated by using the dampers, and can also be buffered and dissipated by using the deformation of the floating body structure, the action time and distance of the floating body and a ship can be prolonged through two-stage buffer energy consumption, the system is beneficial for changing the motion direction of the ship, the force applied to the bridge pier is greatly reduced, the bridge pier can be protected, and protection for the ship is also facilitated at the same time; the floating body is arranged around the bridge pier and the floating body and the bridge pier are spaced at an interval, and furthermore, the installation and maintenance of the anti-collision system are facilitated.

The invention discloses an LED driving power supply sealing structure. The LED driving power supply sealing structure comprises an upper shell, wherein a lower shell is movably arranged at the bottomof the upper shell, convex strips and fixed strips are fixedly connected with the bottom of the upper shell, the convex strips are arranged on front surfaces and back surfaces of the fixed strips, front surfaces and back surfaces of the convex strips are fixedly connected with the fixed strips, first grooves and second grooves are formed in the top of the lower shell, the first grooves are arranged in the top and the bottom of the second grooves, the first grooves communicate with the second grooves, and bottom ends of the convex strips and the fixed strips are respectively and fixedly arranged in the first grooves and the second grooves by binding agents. In the LED driving power supply sealing structure, the convex strips, the fixed strips, the first grooves and the second grooves are arranged, the assembly can be completed by a concave-convex connection mode and by matching the binding agents, so that the effect of sealing is achieved, a leakage phenomenon can be prevented, the LEDdriving power supply can normally work, the service lifetime of the LED driving power supply is prolonged, and people is convenient to use.

The invention discloses a multifunctional LED transparent screen in the technical field of display screen protection, the multifunctional LED transparent screen comprises a display screen body, supporting assemblies are arranged at the four corners of the top end and the bottom end of the rear side face of the display screen body, each supporting assembly comprises a supporting base, and the supporting bases are fixedly connected with a shell of the display screen body through a plurality of fixing screws; and the top of each supporting base is fixedly connected with a convex block and a first supporting rod, wherein the convex block is fixedly connected with a second supporting rod, the end of each supporting assembly is provided with a first anti-collision assembly and a second anti-collision assembly which are located on the rear side and the front side of the display screen body respectively, and isolation protection assemblies are arranged between the second anti-collision assemblies on the front sides. The multifunctional LED transparent screen has the anti-collision and anti-scratch functions on the display screen in the transportation process, the integrity of the display screen in the transportation process is protected, unnecessary damage is avoided, and the use effect is good.

The invention discloses an intelligent omnibearing monitoring deep sea aquaculture net cage, which comprises a bottom plate. A floating plate is arranged at the top end of the bottom plate, six groups of fixing columns are fixedly connected between the bottom plate and the floating plate, and strong fishing nets are fixedly connected between the fixing columns. According to the intelligent omnibearing monitoring deep sea aquaculture net cage, feed is put into a storage disc, a driving motor at the top end of a feeding barrel drives a stirring rod in the feeding barrel to stir the feed to be uniform in size, the feed flows into the aquaculture net cage along a guide pipe, and the feed can be scattered more uniformly in the aquaculture net cage. Meanwhile, monitors arranged in the fixing columns can monitor multiple directions of various aquaculture net cages, the monitored content is transmitted to a terminal through communication, aquaculture personnel can observe the state of the aquaculture net cage in real time through the terminal, once the aquaculture net cage is damaged, the aquaculture net cage can be found and repaired in time, and the problem of non-uniform feed distribution is solved.

The invention discloses an LED (light-emitting diode) chip ITO (indium tin oxide) evaporator explosion-proof visible window which comprises an evaporator body, wherein a rotation frame is arranged in the evaporator body and provided with a plating pot; the plating pot is provided with an LED chip through a spring clamp; the rotation frame is connected with a drive motor through a rotating shaft; an output shaft of the drive motor is connected with the rotating shaft through a coupling; the rotation frame is connected with a guide rail through a rotary table; the evaporator body is also provided with a visible window; the visible window comprises a mounting base, an infrared optical crystal and an explosion-proof board; the infrared optical crystal and the explosion-proof board are connected with the evaporator body through the mounting base; the explosion-proof board is positioned on the inner side of the infrared optical crystal; and the inner side of the infrared optical crystal is provided with more than one reflector through a mounting bracket. The technical scheme effectively solves the problem that people can not completely know the conditions inside the evaporator since the visible range of the existing ITO visible window is narrow, and also solves the problem that the infrared optical crystal can easily burst up due to dense impacts of the metal particles.

The invention discloses an anti-collision device of a highway bridge, and relates to the field of bridge safety. The anti-collision device comprises a plurality of buffering devices evenly arranged inthe left-right direction. Each buffering device comprises a fixed box. The upper end face of the rear portion of each fixed box is fixedly connected with a blocking rod. A containing groove penetrates through the lower portion of each blocking rod in the front-back direction. The upper ends of the blocking rods are fixedly connected with backflush devices. Mounting grooves penetrate through the backflush devices in the front-back direction. The rear potions of the mounting grooves are in front-back sliding connection with balance weights. The front portions of the mounting grooves are in front-back sliding connection with balance weights. The anti-collision device has the advantages that three times of buffering are carried out through buffering tension springs, buffering compressed springs and explosives, and the impact force of cars is reduced to the maximum degree; after a car collision, upper buffering rods and lower buffering rods are bent, and by means of the oblique state of inclined rods, the cars are not likely to fly out accordingly.

The invention discloses an anti-collision and anti-cracking protection device for LED electronic display screen transportation, and belongs to the technical field of display screen protection. The device comprises a display screen body, wherein supporting assemblies are arranged at four corners of the top end and the bottom end of the rear side surface of the display screen body, the supporting assemblies comprise supporting bases, the supporting bases are fixedly connected with a shell of the display screen body through a plurality of fixing screws, convex blocks and first supporting rods arefixedly connected to the tops of the supporting bases correspondingly, second supporting rods are fixedly connected to the convex blocks, first anti-collision assemblies and second anti-collision assemblies located on the rear side and the front side of the display screen body are arranged at the end parts of the supporting assemblies, and isolation protection assemblies are arranged among the front side the second anti-collision assemblies. The device has the functions of anti-collision and anti-cracking on display screens during a transportation process, protects the integrity of the display screens in the transportation process, avoids unnecessary damage, and good in use effect.

The invention discloses an LED head lamp with an adjustable illumination angle based on double lamp caps. The LED head lamp comprises an arc-shaped head hoop, first rotating seats are fixedly connected to the side surfaces of two ends of the arc-shaped head hoop; first rotating grooves are formed in sides, far away from the arc-shaped head hoop, of the first rotating seats; the bottoms of the inner walls of the first rotating grooves are fixedly connected with spring sets; the ends, away from the bottoms of the inner walls of the first rotating grooves, of the spring sets are fixedly connectedwith first top plates. First damping pads are fixedly connected to the sides, away from the spring sets, of the first top plates, second damping pads are slidably connected to the sides, away from the first top plates, of the first damping pads, and second top plates are fixedly connected to the sides, away from the first damping pads, of the second damping pads. The invention relates to the technical field of LED illumination lamps. The LED head lamp capable of adjusting the illumination angle based on the double lamp caps is good in adjusting effect, can illuminate in different directions,and can clean a glass plate at the front section of an illumination lamp during use, so that the illumination effect is prevented from being influenced by shielding of foreign matters.

The switch cabinet comprises a supporting mechanism, a switching mechanism, an operating mechanism and a heat dissipation mechanism, the switching mechanism is arranged at the top of the supporting mechanism, the operating mechanism is also arranged at the top of the supporting mechanism, the heat dissipation mechanism is arranged at the top of the operating mechanism, and a positioning mechanism is arranged in the switching mechanism. The positioning mechanism comprises a reset frame, a sliding rod, a clamping piece and a supporting spring. The sliding rod is fixed to the center of the bottom face in the reset frame. In use, flowing airflow can be effectively generated through the fan to convey excessive heat in the switch chamber and the operation chamber to the heat dissipation frame, so that the heat dissipation frame can effectively conduct excessive heat into the air guide frame, and the flowing airflow is continuously injected into the sealing frame through the air guide pipe under effective operation of the fan; flowing airflow can be effectively injected into the air guide frame through the air guide opening, and then exported redundant heat can be effectively and continuously discharged to the outside.

The invention discloses an LED driving power supply sealing structure. The LED driving power supply sealing structure comprises an upper shell, wherein a lower shell is movably arranged at the bottomof the upper shell, convex strips and fixed strips are fixedly connected with the bottom of the upper shell, the convex strips are arranged on front surfaces and back surfaces of the fixed strips, front surfaces and back surfaces of the convex strips are fixedly connected with the fixed strips, first grooves and second grooves are formed in the top of the lower shell, the first grooves are arranged in the top and the bottom of the second grooves, the first grooves communicate with the second grooves, and bottom ends of the convex strips and the fixed strips are respectively and fixedly arranged in the first grooves and the second grooves by binding agents. In the LED driving power supply sealing structure, the convex strips, the fixed strips, the first grooves and the second grooves are arranged, the assembly can be completed by a concave-convex connection mode and by matching the binding agents, so that the effect of sealing is achieved, a leakage phenomenon can be prevented, the LEDdriving power supply can normally work, the service lifetime of the LED driving power supply is prolonged, and people is convenient to use.

The invention discloses a floating two-stage buffer anti-collision system, and belongs to the technical field of bridge ship collision prevention systems. The floating two-stage buffer anti-collision system comprises a floating body, connecting pieces and dampers, wherein the floating body is arranged around a bridge pier; the dampers are arranged on the floating body at intervals; the dampers are connected with the bridge pier through the connecting pieces. According to the floating two-stage buffer anti-collision system disclosed by the invention, the floating body is arranged around the bridge pier, the dampers are distributed and arranged on the floating body, after a ship collides with the floating body, energy can be buffered and dissipated by using the dampers, and can also be buffered and dissipated by using the deformation of the floating body structure, the action time and distance of the floating body and a ship can be prolonged through two-stage buffer energy consumption, the system is beneficial for changing the motion direction of the ship, the force applied to the bridge pier is greatly reduced, the bridge pier can be protected, and protection for the ship is also facilitated at the same time; the floating body is arranged around the bridge pier and the floating body and the bridge pier are spaced at an interval, and furthermore, the installation and maintenance of the anti-collision system are facilitated.

The invention discloses a steel structure protective air-tight door with good impact resistance and a working method thereof, relates to the technical field of air-tight doors, and aims to solve the problem that an existing protective air-tight door is poor in use practicability and use feeling due to poor impact resistance. The steel structure protective air-tight door assembly comprises an upper mounting frame strip, a lower mounting frame strip connected with the two ends of the upper mounting frame strip, a right mounting frame strip and a left mounting frame strip, wherein the right mounting frame strip and the left mounting frame strip are connected between the upper mounting frame strip and the lower mounting frame strip. The fastening connection structures are in flange connection with the inner walls of the right mounting frame strip and the left mounting frame strip respectively; the connecting rod component is connected to the fastening connecting structure in an embedded and inserted mode, and a hinge structure is connected to the connecting rod component in a hoop mode; the protective air-tight door component is connected to the hinge structure through a flange; the rudder-shaped switch structure is connected to the protective air-tight door component in an embedded mode, and meanwhile the door opening handle component is connected to the surface of the protective air-tight door component in a welded mode.

A blow box (18) for supporting the web run in a paper machine or the like, which blow box comprises members for maintaining a negative pressure at least in one negative pressure region (24) between the wire (20) and the blow box. The members comprise a blocking member (30, 32), which is arranged, regarding the wire's running direction, at the beginning and / or at the end of said negative pressure region, which extends across the wire and projects towards the wire, and which is movable in relation to the blow box, and blowing members (34,36), with which air is ejected with blows between said blocking member and the wire from said negative pressure region and / or with which air is prevented from entering this negative pressure region. The blocking member is connected to the blow box by a hinge member (40, 42), which allows the blocking member to rotate around the articulation point of the hinge member due to the pressure difference between the pressure acting on the blocking member's blocking surface (30', 32') directed towards the wire and the pressure acting on the blocking member's back surface (50, 50') directed away from the wire.

The invention provides a floating building capable of resisting sea wave scour. The floating building capable of resisting the sea wave scour comprises a floating block, top limiting plates, bottom supporting plates, floating blocks, anti-wave arc plates, connecting rings, response lifting balls, bottom limiting plates, floating tanks, electric control valves, a coaming box, an anchor chain, an anchor claw and a fixing plate; the coaming box is fixedly arranged on one sides of the floating blocks; the top limiting plates are fixedly arranged on one side, far away from the floating blocks, of the coaming box; the bottom supporting plates are movably arranged on one sides, far away from the coaming box, of the floating blocks; the floating blocks are fixedly arranged on the surfaces of the bottom supporting plates; the bottom limiting plates are fixedly arranged at the peripheries of the floating blocks; the connecting rings are arranged on one sides, far away from the floating blocks, of the bottom limiting plates; through the anti-wave arc plates, sea waves can be fed back to the pushing direction when the sea waves rush to the floating blocks and the coaming box so as to reduce the impact of the sea waves; and meanwhile, the quantity of seawater scouring the floating blocks and the coaming box is reduced; the seawater is prevented from directly scouring the floating blocks andthe coaming box; the damages of the sea waves to the floating blocks and the coaming box are reduced; and the service lives of the floating blocks and the coaming box are prolonged.

The invention relates to the technical field of riding boot processing, in particular to a riding boot with an instep protection function and a processing technology. The riding boot comprises a sole, a vamp and a shoe barrel, a heel is fixedly connected to one side of the bottom of the sole, the top of the sole is fixedly connected with the vamp, the top of the vamp is fixedly connected with the shoe barrel, the vamp is composed of outer cow leather and inner cow leather, non-Newtonian fluid, a thin steel plate and a latex pad are arranged between the outer cow leather and the inner cow leather, the structure is simple, a common thick steel plate is changed into the thin steel plate, the weight is reduced, the impact force of horseshoe can be blocked through the characteristics of the non-Newtonian fluid, the boot is light, convenient and comfortable, the latex pad is connected to the side, close to the instep, of the thin steel plate, the feet can be protected, the riding boot is comfortable and light to wear, an air cushion and a soft pad attached to the sole are arranged on the sole, the impact force of the feet when a wearer gets off a horse can be effectively reduced, and the boot plays a great role in protecting foot joints.

The invention discloses an anti-collision and anti-crack protection device for LED electronic display screen transportation in the technical field of display screen protection. The support assembly includes a support base, the support base is fixedly connected to the housing of the display screen body through several fixing screws, and the top of the support base is respectively fixedly connected with a convex block and a first support rod, and the convex block A second support rod is fixedly connected to the top, and the ends of the support assembly are respectively provided with a first anti-collision assembly and a second anti-collision assembly located on the rear side and the front side of the display screen body, and the second anti-collision assembly on the front side There is an isolation protection component between them. The invention has the function of anti-collision and anti-scratch for the display screen during transportation, protects the integrity of the display screen during transportation, avoids unnecessary damage, and has good use effect.

The invention relates to the field of citrus reticulata and particularly relates to a rainwater collecting type fruit bagging bag. The rainwater collecting type fruit bagging bag comprises a bag body, wherein an opening is formed in the upper end of the bag body, the bag body comprises an inner bag body and an outer bag body, a waterproof layer is arranged at the outer side of the outer bag body, water blocking plates which are arranged in a uniformly-spaced manner are arranged between the inner bag body and the outer bag body, water through holes are formed in the water blocking plates in a staggered manner, and a bulge is formed on one end, close to a corresponding water through hole, of each water blocking plate; and water inlets are formed in the end parts of the two sides of the opening, and a flow guiding plate is arranged at one side of each water inlet in an outwards inclining manner. According to the rainwater collecting type fruit bagging bag, through collecting rainwater, the rainwater collecting structure can defend against hailstone impact in winter and can serve as an aqueous layer in summer so as to prevent pesticides from being sprayed to surfaces of fruits.

The invention provides a preemptive answering device, and belongs to the technical field of classroom preemptive answering devices.The preemptive answering device comprises an outer shell, first fixing plates are fixedly connected to the four corners of the inner bottom wall of the outer shell, first arc-shaped plates are fixedly connected to the left side and the right side of the upper surface of each first fixing plate, and second arc-shaped plates are slidably connected to the outer surfaces of the first arc-shaped plates; and the upper surface of the second arc-shaped plate is fixedly connected with a second fixing plate. Impact force of external impact can be effectively blocked through the anti-collision layer, a protection effect on the responder body is achieved, a damping structure is formed by a first fixing plate, a second fixing plate, a first arc-shaped plate, a second arc-shaped plate, a first spring and a damping rod, vibration generated by the outer shell can be filtered out through the damping structure, and the damping effect of the responder body is improved. Therefore, the device has high self-protection performance, and damage to the preemptive answering device caused by external impact can be effectively avoided.

The invention relates to the technical field of heavy machinery, in particular to a detection device installation structure and an excavator. The detection device installation structure comprises a machine body, an installation groove and an installation assembly; the installation groove is formed in the machine body and used for completely containing a detection device; and the installation assembly is fixed into the installation groove and used for fixing the detection device. Through the detection device installation structure, the detection device is arranged in the machine body, the concealment is achieved, the situation that the detection device is interfered by an external object and damaged can be avoided, the detection device is protected, in addition, the machine body can be prevented from being impacted by external falling objects or substances, and accordingly, the detection device is further protected. In addition, the detection device installation structure enables the detection device to be arranged in the machine body, and accordingly, the machine body is regular and compact in structure.

The invention relates to a drainage hidden type metal tile and a metal tile machining die. The drainage hidden type metal tile comprises bottom tiles and cover tiles, wherein the bottom tiles and the cover tiles are arranged on a keel frame, a plurality of groups of cover tiles are arranged in the keel frame direction at intervals, the bottom tiles are arc-shaped plates with upward inner cambered surface, a plurality of groups of bottom tiles are arranged in the keel frame direction at intervals, the cover tiles are respectively located between every two adjacent groups of bottom tiles, drainage grooves are formed in the bottom tiles, an acute angle is formed between the forming direction of the drainage grooves and the water flow direction, flow guide surfaces are formed on the groove walls of the sides, close to the upper end of a slope surface, of the drainage grooves, a blind ditch is formed in the keel frame, and the bottoms of the drainage grooves are projected in the blind ditch. According to the drainage hidden type metal tile, potential safety hazards caused by formation of icicle strips at the edge of the tile surfaces can be reduced.

The invention discloses an intelligent management device for newspaper and periodical distribution. The device comprises a newspaper and periodical cabinet for placing newspapers and periodicals. The newspaper and periodical cabinet comprises: a cabinet body, wherein an operation screen is installed above the middle of the cabinet body, the operation screen is used for inputting newspaper and periodical information, a plurality of storage drawers are arranged on two sides of the cabinet body, and the storage drawers are used for placing the newspapers and periodicals; ,and a protection assembly, wherein the protection assembly is used for comprising the operation screen, the protection assembly is vertically installed in the middle of the cabinet body in a sliding mode, the protection assembly is provided with a first locking position and a second locking position, the protection assembly can be switched between the first protection position and the second protection position, and when the protection assembly is located at the first locking position the protection assembly completely covers the operation screen along the projection of the normal of the operation screen. After the operation screen is used, the protection assembly slides to the first locking position, at the moment, a sliding assembly completely covers the operation screen, then the operation screen can be protected, and foreign matter can be prevented from impacting and scraping the protection screen.

The invention discloses a coast slope anti-wave guardrail device, comprising a fixed frame, the fixed frame includes two horizontal bars arranged in parallel, sliding sleeves on the two horizontal bars are provided with sliding plates, and the horizontal bars are located at Two limit rods are symmetrically fixed on both sides of the sliding plate, and two springs are symmetrically sleeved on each of the horizontal rods, and each spring is connected to the sliding plate and the limit rod, and the sliding plate rotates A plurality of rotating shafts are inserted, each of which is located at the lower end of the sliding plate and is provided with a double-arc spoiler, and both ends of the rotating shaft are equipped with lock caps. The invention swings and disperses the impact of seawater through the double-arc spoiler impacted by seawater, and the dispersed seawater collides with each other to offset the impact force, increasing the anti-wave capability of the device, and installing the double-arc spoiler on the shaft and lock cap The sliding plate can be quickly disassembled and installed to increase the flexibility of the device, and the ability of the device to impact and disrupt seawater is further increased through spoiler holes and spoilers.

The invention discloses a shared electric bicycle positioning charging pile based on NB-IOT technology. The main body of the charging pile, the side of the main body of the charging pile that is provided with an operation panel and a display screen is the positive side, and the side opposite to the positive side One side is the back side; the protective structure can protect the positive side of the main body of the charging pile, the protective structure includes a protective shell with a cylindrical structure, one side of the protective shell has a gap, and the protective shell is sleeved on the The outer side of the main body of the charging pile; wherein, the protective shell is rotatable around its own axis, and has a first positioning position and a second positioning position. When the protective shell is in the first positioning position, the notch is in the The positive side of the main body of the charging pile, when the protective case is in the second positioning position. After use, rotate the protective case to the second positioning position so that the notch is on the back side of the main body of the charging pile, and the protective case can effectively protect the display screen and the operation panel and block external foreign objects.