38results about How to "Strong crashworthiness" patented technology

The invention discloses a battery box with high efficiency protection, comprising the following steps: a sealing ring is arranged in the upper cover of the box body; when the upper cover of the box body and the lower case body are closed, the sealing ring is fitted between the inner surface of the upper cover of the box body and the outer surface of the lower case body; when the upper cover of thebox body and the lower case body are closed, the sealing ring is fitted between the inner surface of the upper cover and the outer surface of the lower case body. The panel of the lower box is a sandwich board structure composed of two carbon fiber boards and spider web sandwich. A BMS management system circuit board and a honeycomb-like battery mount rack are arranged in the cavity of the lowerbox body, and the honeycomb-like mount rack is fixedly connected with the lower box body through bolts; The honeycomb-like battery mounting bracket is made of aluminum material and has a hexagonal honeycomb structure. Each hexagonal honeycomb is provided with a cylindrical battery mounting hole. Between that hexagonal honeycomb and the cylindrical battery mount hole, a reinforcing rib is arrange;The ribs of the honeycomb battery mounting frame are filled with a warp knitted spacer fabric and a magnesium hydroxide flame retardant; The axial position of honeycomb-like battery mounting bracket coincides with the direction of travel of the vehicle.

The invention relates to a guardrail and roadbed integrally-reinforced pile anchor structure shaped like a Chinese character 'bo'. The structure comprises a reinforced steep roadbed provided with multiple layers of geogrids, a face board used for supporting and stopping a soil body, H-shaped steel piles, crown beams and anchor rods. The H-shaped steel piles are vertically driven in a stable stratum, the face board is fixed to the front faces of the H-shaped steel piles, the geogrids are connected with the face board through first connecting components, the geogrid on each layer is connected with the H-shaped steel piles through second connecting components or welded to the H-shaped steel piles, the crown beams are poured in the length direction of a highway, the H-shaped steel piles on allsection faces of the reinforced steep roadbed are combined together through the crown beams, and the anchor rods are obliquely driven into the H-shaped steel piles and the reinforced steep roadbed from the outer surface of the face board and extend deep into the stable stratum. The invention further provides a construction method of the pile anchor structure. The structure has the beneficial effects that multiple purposes can be achieved through one structure, the stress performance is good, a reinforcing effect is remarkable, and feasibility is high.

The invention discloses an anti-collision device for the front end of a vehicle body, and relates to the technical field of vehicle manufacturing. The anti-collision device comprises a front anti-collision beam, wherein the two ends of the front anti-collision beam are provided with main energy absorption boxes correspondingly, and the main energy absorption boxes are connected with a front longitudinal beam through mounting plates; and a pedestrian protection beam is arranged below the front anti-collision beam, the two ends of the pedestrian protection beam are connected with the adjacent mounting plates through auxiliary energy absorption boxes correspondingly, the two mounting plates are correspondingly connected with two oppositely-arranged auxiliary frame front extension beams, and the two auxiliary frame front extension beams are connected with an auxiliary frame. Compared with the prior art, according to the anti-collision device for the front end of the vehicle body, by increasing a force transferring path of the collision force, the collision kinetic energy is effectively shared, the stress of the front longitudinal beam is reduced, the minimum position of the size of thecross section of the front longitudinal beam in the Y direction is reduced to 45 mm, the excellent collision resistance of the vehicle body can be ensured under the condition that the large tire envelope and the large displacement engine arrangement are met, and the occupant safety is effectively protected.

The invention relates to a new energy vehicle charging device with intelligent control, which comprises a pile body protective shell and an integrated charging pile body, A piston cylinder is fixed inthe piston box, the movable plate fixed at the outer end of the piston rod is rotatably connected with the lower end of the S-shaped collision rod in the piston box through the transmission rod, theupper end of the S-shaped collision bar is fixed with a horizontal collision baffle, The suction end of the piston barrel is communicated with the lower end of the pile body protective shell through aconnecting pipe, the upper end of the movable plate is fixedly connected with a positioning lever located above the piston barrel, the other end of the positioning lever is inserted into a positioning hole on the lower end side of the integrated charging pile body, and the other side of the lower end of the integrated charging pile body is provided with a metal contact plate contacting with a metal spring. As that main body of the char pile is about to be impacted, the char pile can be rapidly brought into the pile protective shell below the ground by suction and gravity of the charging pileitself, and the problem that the charging pile is easy to be impacted is fundamentally solved.

The invention relates to the technical field of guard bars, in particular to a damping guard bar with a warning function. The damping guard bar comprises a guard bar body, and a warning assembly is mounted on the guard bar body. The warning assembly comprises a warning part and a damping part, the warning part is an arc plate, and the two ends of the warning part are detachably mounted on the twosides of the guard bar body correspondingly. The arc plate faces the side opposite to the guard bar body, reflective adhesive tape is pasted on the arc plate of the warning part, the damping part is aV-shaped plate, and the two ends of the V-shaped plate are detachably mounted on the guard bar body. The bottom of the V-shaped plate is fixedly arranged in the middle of the arc plate. The damping guard bar has the effects that the warning assembly is mounted on the guard bar, the damping part is mounted on the guard bar, and therefore the impact force generated during colliding can be relievedwhile warning is carried out, and the injuring probability of drivers is reduced.

The present invention provides a novel protective energy-absorbing battery box. The novel protective energy-absorbing battery box is formed by combining high-strength steel and sine wave rib plates, so that the novel protective energy-absorbing battery box is not easy to deform in the collision process of the battery box, and the sine wave rib plates can reduce the peak force in collision, the safety of the battery is protected, and the good collision resistance can be provided. An energy-absorbing column adopts a combination of a hexagonal honeycomb structure and a square structure. During crash crushing, the honeycomb structure absorbs a large amount of energy through plastic deformation. Meanwhile, the energy-absorbing column is also provided with the square structure, and a large number of corner units provided by the energy-absorbing column can absorb energy in the collision process, so that the safety of the battery is protected. A battery pressing plate is a sandwich structure,the inner layer is a self-similar structure consisting of an isosceles trapezoid and a rectangle, and the yield strength and the energy absorption capacity of the pressing plate can be adjusted by changing the number of self-similar layers and the self-similar proportion, so that the battery pressing plate has the good energy-absorbing performance. The protective energy-absorbing battery box can provide enough buffering energy absorption when collision occurs.

The invention relates to a corrugated sandwich road protection structure. The corrugated sandwich road protection structure comprises spiral columns, a sandwich corrugated plate, main corrugated taper pipe assemblies, and subsidiary corrugated taper pipe assemblies; the sandwich corrugated plate comprises a corrugated shell, and fillers arranged in the corrugated shell; the upper portion of each spiral column rotates along the axis and forms warped surfaces; and each main corrugated taper pipe assembly and each subsidiary corrugated taper pipe assembly are connected with the sandwich corrugated plate and the upper portion of corresponding spiral column, the main corrugated taper pipe assemblies are obliquely connected with the sandwich corrugated plate, and the subsidiary corrugated taper pipe assemblies are vertically connected with the sandwich corrugated plate. The corrugated sandwich road protection structure solves the problems that protective fences of a general road and an expressway are not strong enough in crashworthiness, single in energy-absorbing form, and poor in buffering effects, and cannot effectively prevent vehicles off the road. The corrugated sandwich road protection structure has the beneficial effects of having a characteristic of high energy absorption; being safe and reliable with high stability, strong in crashworthiness, and high in adaptability of impact angle; and being easy to mount, convenient to replace, and high in sustainable use.

The invention discloses a variable emergency isolation strip and relates to the field of road engineering. The variable emergency isolation strip comprises a U-shaped base channel (1), a moving cover plate (2), at least two side retaining plates (3) and at least two transverse retaining plates (4). The variable emergency isolation strip is characterized in that moving cover plates (2) are arranged on the upper portion of the U-shaped base channel (1), the moving cover plates (2) and the U-shaped base channel (1) enclose a duct (5), and the side retaining plates (3), the transverse retaining plates (4) and the moving cover plates (2) enclose cells (6). Mainly, when road traffic accidents cause traffic jam, the variable emergency isolation strip can be quickly opened by maintainers to release traffic jam pressure by lifting up the side retaining plates (3), the transverse retaining plates (4) and the moving cover plates (2) with simple lifting equipment. The variable emergency isolation strip is good in collision avoidance, allows lane changing to be simple and fast, and is low in manufacturing cost; the functions such as solar power, electronic monitoring, drainage and disaster reduction can be expanded and integrated conveniently.

The invention discloses a UHPFRC (ultra high performance fiber reinforcement concrete) assembling type road protecting wall and a construction method. The road protecting wall comprises a UHPFRC protecting wall, a bar-shaped foundation, bolts, planting soil and green plants, wherein a T-shaped connecting element on the end head of the UHPFRC protecting wall is implanted into a C-shaped connectingelement to realize the embedding and fixing connection of the UHPFRC protecting wall; anchoring holes are arranged on two sides of the wall body of the UHPFRC protecting wall; the bolts are fixed on the bar-shaped foundation; the anchoring holes arranged on the wall body of the UHPFRC protecting wall are matched with the bolts on the bar-shaped foundation; the bolts pass through the arching holesto fix the UHPFRC protecting wall and the bar-shaped foundation; and an L-shaped reflective stripe is arranged on the side surface of the wall body of the UHPFRC protecting wall. The protecting wall has high structural intensity and light self weight, has excellent impact resistance, and has a function of absorbing impact energy. The UHPFRC assembling type road protecting wall has the advantages of industrialized production, short construction period, long service life and low maintenance cost, can easily guarantee construction quality, and can lower the construction cost of the protecting wall in a full life circle. A greening groove is arranged, holes are embedded into the greening groove for water accumulation, a road can be effectively greened, and the quality of the road is improved.

The invention belongs to the technical field of ocean engineering.According to the technical scheme for solving technical problems, a floating breakwater comprises a floating unit and a mooring system used for restraining the floating unit; the floating unit comprises a box, a rib plate and a web plate arranged at the bottom of the box, the web plate is arranged in the length direction of the box, and the rib plate is arranged in the width direction of the box and connected with the box and the web plate.Multiple wave eliminating principles of the floating breakwater are fully utilized, the overall wave eliminating performance of the floating breakwater is greatly improved, and particularly long-cycle waves can be defended.In terms of structural material selection, different from traditional steel or reinforced concrete materials, a novel composite material is adopted for manufacture of an entity, and therefore the floating breakwater has the excellent properties of high corrosion resistance, durability, impact resistance, fatigue resistance and the like, has the advantages of being environmentally friendly, free of maintenance, easy to form, convenient to replace and the like, and realizes both structural practicability and economic benefit.

Disclosed are a water area surveillance robot for collecting water area information and a control method thereof. The water area surveillance robot for collecting the water area information comprises a ship body, and a drive unit, a main control unit, a water area information collection unit, an energy supply unit and a wireless communication unit, which are installed on the ship body, wherein the ship body is of a cylindrical ship body structure, the drive unit is composed of two ducted propellers which penetrate through the ship body, the two ducted propellers are symmetrically installed on two sides of the ship body, each ducted propeller is a duct with an internal propeller, each duct is made of light and solid material, a filter screen is installed on a port of each duct, and each ducted propeller is located in the middle of the interior of each duct. The control method of the water area surveillance robot for collecting the water area information includes that the water area surveillance robot for collecting the water area information is pushed forwards by relying on water currents, and when the water area surveillance robot for collecting the water area information enters a dead water area, drive motors of the ducted propellers are started, the ship body is controlled under guidance of an electronic compass module and drainage basin information, and then the ship body achieves posture adjustment and breaks away from the dead water area.

The present invention relates to an error-proofing mechanism of an automobile welding fixture. The error-proofing mechanism comprises a positioning pin (1) and a lever valve (8). The error-proofing mechanism is characterized in that: an automobile welding part opens the lever valve (8) through the positioning pin (1). The error-proofing mechanism of the automobile welding fixture in present invention no longer uses the part to directly contact the lever valve, but uses a positioning pin contact method to control the lever valve. Direct contact between the part and the lever valve is converted into indirect contact such that protection of use of the lever valve can be achieved.

A high-performance towing anti-collision device of a road construction operation vehicle comprises an anti-collision frame, an upper cross beam, a lower cross beam, trundles, a baffle, a first supporting rod, a first connecting rod, a first connecting cylinder, a first spring, a buffer plate, a second supporting rod, a second connecting rod, a second damping base, a second connecting cylinder, a second spring, a supporting protruding block, a third damping rod and a traction structure. The anti-collision device is easy and convenient to use and flexible to use; the multi-stage pressure reduction structures of the device are in linkage fit, so that the device has high anti-collision performance; and local or complete maintenance can be carried out after collision.

Provided is a dart whose empennage can stretch bidirectionally. The dart comprises a dart rod, a dart head arranged on the front end of the dart rod, and an empennage arranged on the rear end of the dart rod. The rear end of the dart rod is provided with an empennage connecting portion. The empennage comprises a sleeve. The empennage connecting portion is sleeved with a squeezing ring. The squeezing ring is provided with a clamping bulge. An inner wall of the sleeve is provided with a clamping groove. One side of the squeezing ring is provided with a first elastic piece, and the other side ofthe squeezing ring is provided with a second elastic piece. Compared with the prior art, the dart whose empennage can stretch bidirectionally has the following advantages, the empennage can rotate onthe empennage connecting portion, and has a bidirectional expansion function. When active collision or passive collision occurs, the dart can buffer force strength through rotating and stretching theempennage. Compared with the prior art, crashworthiness of the empennage is better, damage probability is low, and service life is long. The dart is simple in structure, convenient in assembly, and low in production cost.

The invention discloses a micro station-type artificial fishing bank, comprising a cylindrical shell and a gripping type support arranged on the bottom of the cylindrical shell. The cylindrical shell is formed by connecting a plurality of vertical stand columns and horizontal hoop rings. At least a group of symmetric vertical stand columns are hinged with symmetric blades. Each blade comprises a blade covered edge and a grille screen plate. A cylindrical grille core body is arranged in the cylindrical shell. The top position of the cylindrical shell is also provided with an annular multiplication disk. The surface of the annular multiplication disk is provided with a plurality of meshes. The cylindrical shell, the blades, the cylindrical grille core body, and the annular multiplication disk are made of glass reinforced fibers. The outer side surface of the annular multiplication disk is also provided with a plurality of clamping supports. Each clamping support is connected with a detachable artificial fishing bank unit, The micro station-type artificial fishing bank can hold large amount of bottom plankton, and the plankton can shuttle back and forth. The micro station-type artificial fishing bank is relatively light in weight, low in manufacturing cost, convenient in installation, dismounting, and transport.

A water area reconnaissance robot used for water area information collection and a control method thereof. The water reconnaissance robot includes a hull and a drive unit installed on the hull, a main control unit, a water information acquisition unit, an energy supply unit and a wireless communication unit; the hull adopts a cylindrical hull structure; the drive unit is two Ducted propellers, two ducted propellers are symmetrically installed on both sides of the hull; ducted propellers are ducts with propellers inside, and the ducts are made of light and strong materials. The ports of each duct are equipped with filter protection nets, and the propellers are located in the middle of the duct; A control method for a water area reconnaissance robot used for water area information collection. The water area reconnaissance robot relies on water flow to advance, and when it enters a dead water area, it starts the driving motor of the duct propeller, and under the guidance of the electronic compass module and the watershed information, the hull is controlled. Take control, achieve attitude adjustments and get out of dead water.

The invention provides a battery device with a hierarchical structure, including a battery and a battery box for accommodating the battery; the battery box includes side walls respectively arranged on both sides of the battery box and a battery box arranged at the bottom of the battery box. The upper and lower bottom plates; the side wall and the upper and lower bottom plates enclose a battery installation position for accommodating the battery; the side wall includes a first panel arranged on the inner side and a second panel arranged on the outer side; the side surface of the first panel facing the battery installation position is specifically It is a carbon fiber board, and its plane is perpendicular to the upper and lower bottom plates; the side of the first panel facing away from the battery installation position is specifically a carbon fiber board, and is specifically an outwardly curved arc surface; the second panel faces and backs The two sides of the battery installation position are carbon fiber boards, and they are all outward arc surfaces; the interiors of the first panel and the second panel are filled with nanofiber fillers; the application of this technical solution can make the battery device face It can absorb energy efficiently when impacted.

The present invention discloses an industrial pollution source monitoring device, relates to the field of industrial pollution source monitoring devices, and aiming at problems that the existing waterquality monitor for monitoring industrial pollution sources has poor anti-collision performance, is easy to be damaged due to impact, and has poor product quality, proposes following scheme: the device comprises a support plate and a water quality monitor main body, wherein the water quality monitor main body is installed directly above the support plate, middle of the support plate is provided with a movable hole, and inside the movable hole is sleeved with a fixed pipe in a vertical arrangement, and top end of the fixed pipe extends to top of the support plate and is fixed on bottom wall ofthe water quality monitor main body, two air springs in vertical arrangement are symmetrically connected between the support plate and the water quality monitor main body, two side walls of the waterquality monitor main body are respectively fixed with a rectangular fixing box, and side walls of the two fixing boxes away from each other are respectively provided with limited holes. The device has strong anti-collision performance, is not easy to be damaged by impact, and has high product quality.

The invention discloses a multi-layer sandwich-type composite structure and an automobile dash board using the same. The composite structure comprises an upper roof plate, a first sandwich-type body,and an intermediate separating plate which are successively connected. The first sandwich-type body comprises a plurality of first matrixes. A plurality of the first matrixes is arranged on a horizontal plane in periodic array. The first matrix is formed by four first crossed units. The four first crossed units are arranged along a diagonal line of four side faces of a cube, and the four first crossed units are successively connected and a first cavity is surrounded between the four first crossed units. Two neighboring first matrixes are connected through own first crossed units. The compositestructure is capable of greatly improving structural rigidity and strength, bending resistance, anti-penetration performance and different surface collision resistance. The first sandwich-type body is a single-layer lattice structure, and has higher energy absorption capability. In addition, the first cavity has a noise-reducing function.

The invention relates to the technical field of coal mine safety, in particular to a non-equal-wall-thickness rhombic composite structure impact energy absorption protection device, and aims to solve the problems that an existing impact energy absorption device is poor in buffering and energy absorption effect and poorer in collision resistance and impact resistance. According to the impact energy absorption protection device with the non-equal-wall-thickness rhombic composite structure, the energy absorption layer with the non-equal-wall-thickness rhombic composite structure is adopted as a main energy absorption component, and the non-equal-wall-thickness rhombic structure and the connecting arms with the non-equal-wall-thickness rhombic structure are compounded to form a composite honeycomb structure; the characteristics of small rigidity, excellent energy absorption characteristic, strong crashworthiness and good bending resistance of the non-equal-wall-thickness rhombus structure are fully utilized, and the advantages of light weight, high strength, high shear modulus, good notch resistance, good fracture resistance, high resilience toughness, stable mechanical property, excellent energy absorption capability, strong impact resistance and the like of the honeycomb structure are also exerted; the non-equal-wall-thickness rhombic composite structure energy absorption layer integrally has excellent energy absorption performance, and the structure is stable and reliable.

The invention provides a protective energy-absorbing battery box. Since the anti-collision beam is made of high-strength steel and sine wave ribs, it is not easy to deform during the collision of the battery box, and the sine wave ribs can reduce the peak force during the collision. Keeps the battery safe and therefore offers good crashworthiness. The energy-absorbing column adopts a combination of hexagonal honeycomb structure and square structure. During crash crushing, the honeycomb structure absorbs a large amount of energy through plastic deformation. At the same time, there is also a square structure in the energy-absorbing column, which provides a large number of corner units that can also absorb energy during a collision to protect the safety of the battery. The battery press plate adopts a sandwich structure, and the inner layer is a self-similar structure composed of isosceles trapezoid and rectangle. The yield strength and energy absorption capacity of the press plate can be adjusted by changing the number of self-similar layers and the self-similar ratio, so it has good energy absorption. The above-mentioned protective energy-absorbing battery box can provide sufficient energy-absorbing buffer when a collision occurs.

The invention relates to a steel composite material anti-collision facility comprising an anti-collision ring and an energy consuming filler. The anti-collision ring is formed by connecting a plurality of sections head to tail and is in a runway shape, and the sections are connected through connecting flanges, are each in an annular column shape and are filled with the energy consuming filler. Energy consuming partition plates evenly partition the energy consuming filler, and inner reinforcing steel cylinders are attached to the inner walls of the sections. By adoption of the structure, compared with the prior art, from the perspective of the structure, the overall structure is high in flexible collision prevention and buffering energy absorption efficiency, high in strength, excellent incorrosion resistance, durability, collision resistance and fatigue resistance, high in cost performance, small in weight, convenient to transport, mount and replace, environmentally friendly and beautiful in appearance, and colors can achieve the warning effect; and non-metallic materials are adopted, and the anti-theft effect can be achieved.

The invention discloses an intrinsic safety type control cable for a monitoring alarm system. A cable core comprises a Y-shaped rubber skeleton of a hollow structure, a plurality of small holes are evenly formed in the Y-shaped rubber skeleton, and a drainage wire is arranged in the center of the Y-shaped rubber skeleton. Three gaps of the Y-shaped rubber skeleton are provided with two ground wire cores and one control wire core respectively. Each ground wire core comprises a fan-shaped conductor, a silicon rubber insulation layer is wrapped outside each fan-shaped conductor, the control wire cable comprises three circular conductors and fluoroplastic insulation layers wrapped outside the circular conductors, a mica layer is wrapped outside the three circular conductors which are twisted, and then the three circular conductors are twisted with two tensile ropes. A wrapping layer and a sheath layer are sequentially wrapped outside the cable core. The Y-shaped rubber skeleton of the hollow structure is used, the small holes are evenly formed in the Y-shaped rubber skeleton, so that the drain wire drains the current of any electric leakage wire core out, the using safety of the cable is guaranteed, and the firmness and the stability of the cable are further improved.

The invention discloses a radio frequency cable for ocean engineering. The radio frequency cable for ocean engineering comprises a cable core. The cable core comprises a V-shaped rubber frame. A sector-shaped main conductor is arranged above the V-shaped rubber frame. A fluoroplastic insulating layer is arranged outside the main conductor in an extruding mode, two control wire cores are arranged below the V-shaped rubber frame, each control wire core comprises two control conductors coated with silicon rubber insulating layers, and after the two control conductors are twisted with two thermoplastic polyurethane elastic bodies, a cross-linked polyethylene insulating layer is arranged in an extruding mode. After the cable core is twisted with three filling ropes, the cable core and the filling ropes are sequentially coated with a taped covering layer, a water blocking layer and an outer protective sleeve. According to the radio frequency cable, the V-shaped rubber frame is adopted, the firmness of the cable is guaranteed, and the main conductor can be differentiated from other conductors. The thermoplastic polyurethane elastic bodies serve as filling, so that the flexibility of the cable is increased; the filling ropes are adopted, so that the tenacity of the cable is increased.

The invention discloses a delaying aeration tube. The delaying aeration tube comprises a tube body, two plugs and a delaying stacking tube, wherein a plurality of tiny aeration holes are formed in the top of the tube body, the two plugs are detachably connected to two ends of the tube body respectively, a delaying stacking tube connecting part extending downwards is further arranged at the bottom of the tube body, the delaying stacking tube is fixed at the bottom of the tube body through the stacking tube connecting part, one end of the delaying stacking tube is connected with a gas inlet tube, and the other end of the delaying stacking tube is sealed by a delaying plug. The length of the delaying stacking tube is 1 / 3 to 1 / 2 that of the tube body. A sealing structure concaved inwards is arranged in the position, corresponding to the stacking tube connecting part of the tube body, of the delaying stacking tube and sleeved with a sealing ring in a shape of Chinese character 'ji', and the bottom of the stacking tube connecting part of the tube body is inserted into the sealing ring in a shape of Chinese character 'ji'. The delaying aeration tube which is simple in structure, convenient to mount and maintain and better in delaying effect is provided, so that the better sewage treatment effect is realized during sewage treatment, and the service life of the delaying aeration tube is prolonged.

The invention discloses a non-bearing frame longitudinal beam. The longitudinal beam comprises a C-shaped longitudinal beam body (1), and also comprises at least two right square pyramid frames (2) which are arranged on the inner side of the C-shaped longitudinal beam body (1) and are arranged along the axis of the C-shaped longitudinal beam body (1) at equal intervals, two fixedly connected tetrahedron frames (3) are arranged between every two adjacent right square pyramid frames (2), and the two ends of the two connected tetrahedron frames (3) are fixedly connected with the two right squarepyramid frames (2) respectively. The non-bearing frame longitudinal beam is good in collision resistance and light in weight.

The invention discloses a delaying aeration tube. The delaying aeration tube comprises a tube body, two plugs and a delaying stacking tube, wherein a plurality of tiny aeration holes are formed in the top of the tube body, the two plugs are detachably connected to two ends of the tube body respectively, a delaying stacking tube connecting part extending downwards is further arranged at the bottom of the tube body, the delaying stacking tube is fixed at the bottom of the tube body through the stacking tube connecting part, one end of the delaying stacking tube is connected with a gas inlet tube, and the other end of the delaying stacking tube is sealed by a delaying plug. The length of the delaying stacking tube is 1 / 3 to 1 / 2 that of the tube body. A sealing structure concaved inwards is arranged in the position, corresponding to the stacking tube connecting part of the tube body, of the delaying stacking tube and sleeved with a sealing ring in a shape of Chinese character 'ji', and the bottom of the stacking tube connecting part of the tube body is inserted into the sealing ring in a shape of Chinese character 'ji'. The delaying aeration tube which is simple in structure, convenient to mount and maintain and better in delaying effect is provided, so that the better sewage treatment effect is realized during sewage treatment, and the service life of the delaying aeration tube is prolonged.

The invention relates to a new energy vehicle charging device with intelligent control, which comprises a pile body protective shell and an integrated charging pile body, A piston cylinder is fixed inthe piston box, the movable plate fixed at the outer end of the piston rod is rotatably connected with the lower end of the S-shaped collision rod in the piston box through the transmission rod, theupper end of the S-shaped collision bar is fixed with a horizontal collision baffle, The suction end of the piston barrel is communicated with the lower end of the pile body protective shell through aconnecting pipe, the upper end of the movable plate is fixedly connected with a positioning lever located above the piston barrel, the other end of the positioning lever is inserted into a positioning hole on the lower end side of the integrated charging pile body, and the other side of the lower end of the integrated charging pile body is provided with a metal contact plate contacting with a metal spring. As that main body of the char pile is about to be impacted, the char pile can be rapidly brought into the pile protective shell below the ground by suction and gravity of the charging pileitself, and the problem that the charging pile is easy to be impacted is fundamentally solved.

The invention discloses a variable emergency isolation belt, which relates to the field of traffic and road engineering. The variable emergency isolation belt includes a U-shaped base groove (1), a movable cover (2), a lateral baffle (3) and a transverse baffle (4), and the feature is that the movable cover (2) It is located on the upper part of the U-shaped foundation groove (1), and together with the U-shaped foundation groove (1), forms a tunnel (5), the at least two lateral baffles (3), at least two transverse baffles (4) and The movable cover plate (2) jointly encloses an empty slot (6). It is mainly used for traffic accidents on roads, maintenance personnel can use simple hoisting equipment to lift the lateral baffle (3), horizontal baffle (4) and movable cover (2), quickly open the isolation belt, and relieve Traffic jam stress. The invention has excellent isolation and anti-collision performance, easy and quick lane change, low cost, and is also convenient to expand multiple functions such as solar energy, electronic monitoring, drainage and disaster reduction.