43results about How to "Improve site utilization" patented technology

The utility model relates to a tray carrying robot simultaneously suitable for matts and Chinese character'chuan 'supports, and belongs to the technical field of carrying equipment. In order to overcome the defects that an existing transfer robot is low in load and cannot be used for matts-shaped trays, the utility model provides the tray transfer robot which is high in load and can be used for matts-shaped trays. The tray carrying robot comprises a robot chassis and prongs, two prong guiding assemblies are arranged on the robot chassis at intervals, each prong guiding assembly is internally provided with the corresponding prong, the prongs can leave or return to the robot chassis from the corresponding prong guiding assembly, each prong is internally provided with a motor, and each motor is connected with the corresponding prong guiding assembly. The output end of the motor is provided with at least one group of prong undercarriage components capable of jacking up and landing the prongs; the robot can be suitable for a tray shaped like a Chinese character'chuan 'and a tray shaped like a Chinese character'tian'; during carrying, the turning radius is small, the stability is good, and the loading of heavy goods can be realized.

The utility model relates to the technical field of batteries, and provides an energy storage container which comprises a container body, and in three directions of a first direction, a second direction and an up-down direction, the size of the container body in two of the directions is the same as the size of a standard container with a preset size. The size of the box body in the other direction is smaller than the size of a standard box with a preset size, and the preset size is 10 chi, 20 chi, 30 chi, 40 chi or 45 chi; wherein the first direction, the second direction and the vertical direction are perpendicular to one another. Under the condition that the size of the box body is not greatly changed, the weight of the box body can be reduced, the box body can be matched with conventional transportation and transfer equipment, and the transportation requirements of land transportation and / or sea transportation and the like are met.

The invention discloses an extra-high voltage converter station with an overlapping structure. The extra-high voltage converter station comprises a valve hall, a converter unit, a polar line unit, a starting loop, an alternating current field, a bridge reactor unit, a limited reactor unit, a metal return line unit and a grounding electrode outgoing line unit, the valve hall comprises a valve tower and converter valves, and the converter units and the polar line units are distributed on the two sides of the valve hall to form a first-layer framework. The first-layer framework further comprises a metal loop unit which is arranged in the middle of the valve hall. The starting loop, the alternating current field, the bridge reactance unit, the limited reactance unit and the grounding electrode outgoing line unit form a second-layer framework; the starting loop and the alternating current field are arranged above the commutation unit, and the starting loop is connected with the alternating current field; the bridge reactance unit, the limited reactance unit and the grounding electrode outgoing line unit are arranged above the polar line unit; the first-layer framework and the second-layer framework are constructed through a supporting type platform. According to the method, each area of the converter station is split, and a space overlapping structure is adopted for optimization, so that the field utilization rate is improved, and the occupied area is saved.

The utility model provides an alloy grading screening device, which belongs to the technical field of alloy screening and comprises a screening box, and a feed inlet and an exhaust inlet are arranged at the top of the screening box. A screen plate assembly and a screen mesh assembly which are obliquely arranged are installed in the screening box. The oblique low end of the screen plate assembly is connected with a screen plate discharging table. The inclined low end of the screen assembly is connected with the screen discharging table. A material collecting cavity is formed by the screen assembly and the bottom of the screening box, and one side of the material collecting cavity is connected with a material collecting and discharging table; a material pushing mechanism is arranged in the material collecting cavity and comprises a reciprocating screw rod and a guide rod which are parallel to the bottom of the screening box, the reciprocating screw rod and the guide rod are sleeved with a push plate, and the bottom of the push plate abuts against the bottom of the screening box; a servo motor is arranged outside the side wall of the screening box, and the output end of the servo motor is connected with the reciprocating lead screw. When the device runs, materials are in a relatively sealed environment, raised dust is not easy to generate, the working environment is improved, the screening and grading effects of the materials are improved through the design of the multi-stage screen, and the waste rate of products is reduced.

The utility model discloses a double-layer stone plate and earthenware brick storage rack which comprises a first-layer stone plate swing frame and a second-layer stone plate swing frame stacked above the first-layer stone plate swing frame. The stone plate swing frame comprises a layer of bottom frame arranged on the ground and a plurality of stone plate storage vertical frames which are equal in height and are vertically arranged. The width of the second-layer stone plate storage vertical frame and the width of the second-layer bottom frame are smaller than the width of the first-layer stone plate storage vertical frame. Two slate placement modes are provided, one mode is a placement mode that slate plates on the two sides are oppositely placed by being matched with a two-layer stabilizing frame designed in the middle; secondly, the design of a two-layer stabilizing frame is omitted, a two-layer frame positioning part in the shape of a blocking strip or a blocking piece is used for achieving the clamping and placing functions of positioning and limiting, and the double-layer stone plates are placed in sequence; stone is stacked and fixed through the double-layer stone plate and earthenware brick storage frame, the stock can be multiplied, and the problem that an existing single-layer stone plate storage frame occupies too much space is effectively solved.

The application relates to the mechanical technical field and provides a protection mechanism, which comprises a support frame and a plurality of protection plates, the support frame comprises a side frame, a top frame and a bottom frame, the side frame is connected between the top frame and the bottom frame, and the side frame and the bottom frame are detachably connected; the side frame comprises a plurality of supporting pieces, a plurality of connecting pieces, a plurality of reinforcing pieces and a fixing piece, the supporting pieces are arranged at intervals and surround the side frame, the two ends of the connecting piece are connected to adjacent supporting pieces and are arranged at intervals along the length direction of the supporting piece; the two ends of the reinforcing piece are connected to two adjacent connecting pieces and are arranged at intervals along the length direction of the connecting piece; the fixing piece is sleeved on the outer circumferential side of the supporting piece and is arranged at intervals along the length direction of the supporting piece; the protection plates are arranged on the outer circumferential side of the side frame and are connected with the fixing piece, the protection plates are arranged on the side, away from the bottom frame, of the top frame, and the protection plates are arranged on the side, facing the top frame, of the bottom frame. Therefore, the protection mechanism has high supporting property.

The utility model discloses a kind of printing device of packaging box convenient to position, it is related to packaging box printing technical field.The utility model includes: box, recess is set in left and right side wall in box, driving assembly is connected in recess, driving assembly is connected with connecting block, connecting block is connected with fixed plate by adjusting assembly;Driving assembly includes the rotation gear that is rotatably connected with recess, driving gear is meshed and connected below rotation gear, motor is connected with driving gear;Top end is connected with printing assembly in box.The utility model is driven by setting driving assembly, the meshing transmission of rotation gear and driving gear in driving assembly, cooperate the rotation design of connecting block, realize packaging box single-side printing after automatic turning, without manual disassembly and reinstallation, greatly shorten process link time, compared with traditional printing mode, greatly improve production efficiency.

This utility model discloses a high-efficiency toothed sprocket production mold for powder metallurgy, relating to the field of sprocket production. It includes a lower mold base, with a support frame fixedly connected to the top of the lower mold base. Cylinders are installed on both sides inside the lower mold base, and a fixed plate is fixedly connected to the output end of each cylinder. An upper mold is fixedly connected to the bottom of the fixed plate. A powder box is also provided above the lower mold base, with a scraper and discharge port installed at the bottom of the powder box. A drive mechanism for moving the powder box is provided on the fixed plate. The opening and closing of the mold is achieved by driving the fixed plate and the upper mold up and down through the cylinders. Simultaneously, a rack and pinion transmission mechanism converts the up-and-down movement of the upper mold into the horizontal movement of the powder box. When the upper mold presses down for forming, the powder box automatically moves away from the mold hole to avoid interference. After forming, it automatically returns to the center position for powder filling. The entire process requires minimal manual intervention.

The laser coil stock production line comprises a frame body and a driving structure, mounting plates are symmetrically mounted at the upper end of the frame body, and conveying structures are distributed on the inner sides of the mounting plates at equal intervals; the conveying structure A in the middle of the inner side of the mounting plate is higher than the adjacent conveying structure; conveying structures B are arranged on the two sides of the conveying structure A, and the conveying structures B are higher than the conveying structure A; and the conveying structure A and the conveying structure B form a height difference capable of improving the bending stress of the plate. The utility model solves the problems that the distance between the feeding mechanism and the laser cutting machine of the existing plate coil stock laser production line is longer, so that the site construction area is overlarge, and the bending stress of the plate is not better improved due to the fact that the bending stress of the plate is counteracted in the direction opposite to the bending stress due to the weight.

The application discloses a rivet clamping, tin soldering, electric performance testing and tin cutting integrated machine and a control method thereof. The machine comprises a cabinet base, a processing base is installed on the top of the cabinet base near one end, a missing part detection assembly, a rivet clamping mechanism, a soldering agent injection mechanism, a soldering mechanism, an electric performance detection mechanism, a tin cutting mechanism, an auxiliary pressing assembly, a rotary discharging mechanism and a material transferring mechanism are sequentially bolted on the top of the cabinet base and around the circumferential direction of the processing base. The missing part detection, rivet clamping, soldering agent injection, soldering, double electric performance testing, double tin cutting, pressing and shaping, discharging and workpiece transferring are integrated on the same cabinet base by adopting the disc type integrated layout, and multiple separate processing equipment is replaced, so that the equipment area is greatly reduced, the workpiece is automatically circulated by relying on the disc intermittent conveying, the manual transferring link between processes is cancelled, the process connection is more compact, and the production efficiency and the site utilization rate are significantly improved.

The present invention discloses a rail transit yard section plane layout structure suitable for narrow and long plots of land, including an operation warehouse, a maintenance warehouse, a car wash, a line in the section and a turnout built in the narrow and long plot for rail transit vehicles; the operation warehouse is arranged in a forward direction, the maintenance warehouse is arranged in an inverted opposite direction through the maintenance entry line, and the locomotive running line is arranged on the outside of the maintenance entry line; the car wash is arranged in a through-type manner on the outside of the entry line, and the two ends of the car wash line are connected to the entry line through a single turnout; the operation warehouse and the maintenance warehouse are respectively connected to the line and turnout in the section. The beneficial effects are: the vehicle has a short running distance when entering the maintenance warehouse, and the maintenance, operation and management efficiency are improved. All tracks and shunting operations are optimally arranged between the operation warehouse and the maintenance warehouse, and there are no tracks on the horizontal outside of the two large warehouses, which are more adaptable to narrow and long plots. The yard section layout reduces track laying and turnout laying compared to the traditional yard section, and at the same time, the corresponding engineering volume of roadbed, water supply and drainage, contact network, communication, electricity, etc. is reduced, effectively improving the land utilization rate.

The invention relates to a three-level prevention and control facility and a three-level prevention and control method for fire-fighting wastewater of a box-type power charging and replacing station, and relates to the field of accident wastewater treatment. The facility comprises a three-stage pipe network composed of a first-stage pipe network, a second-stage pipe network and a third-stage pipe network, a battery charging and replacing operation area and an outer side road. The first-stage pipe network is an operation area drainage open trench and is arranged on the periphery of a charging and battery replacing operation area; the second-stage pipe network is a storage yard drainage open trench, is arranged on the edge of an outer side road and is arranged close to a charging and battery replacing operation area; the third-stage pipe network is a rainwater pipe network and is arranged on the center line of an outer road; and the third-stage gates are respectively arranged in the connected third-stage pipe networks. The method comprises the following steps: during normal operation, clean rainwater of a storage yard passes through a rainwater pipe network, and when a fire accident occurs, the three-stage gate is closed according to the amount of waste water through remote or field operation, and the waste water is intercepted in the three-stage pipe network in a grading manner. The three-level prevention and control body facility is adopted to collect wastewater, and the device has the advantages of small occupied area, high operation flexibility, low engineering investment cost and high safety.

The utility model relates to a die changing guide slide seat structure of automobile stamping die, including bottom surface connecting seat body, guide slide seat assembly structure on being established in bottom surface connecting seat body, guide slide seat assembly structure include horizontal setting bottom surface connecting seat body in multiple groups vertical guide rolling part structure, the die body limiting stop piece of setting every vertical guide rolling part structure one side end and the equipment hang the structure of relying on being established in setting every vertical guide rolling part structure other side end, vertical guide rolling part structure is at least setting 3 groups between bottom surface connecting seat body and is setting in bottom surface connecting seat body horizontal direction. The utility model has the advantages that: the structure has the advantages of saving electricity and oil, reducing cost, reducing land occupation, reducing transportation space requirement, improving site utilization and improving production efficiency.

The invention discloses a hot die forging press large-scale sub-die holder replacement mechanism and method. The hot die forging press large-scale sub-die holder replacement mechanism comprises an upper support, a lower support, a lifting hydraulic cylinder, a first hydraulic motor speed reducer, a second hydraulic motor speed reducer, a first arm rod, a second arm rod and a tray, and the upper support and the lower support are both fixed to a press stand column; the upper end of the piston rod is rotationally connected with the upper support, the lower end of the piston rod is rotationally connected with the lower support, and the piston rod is driven by a first hydraulic motor speed reducer to rotate; an oil inlet and an oil outlet are respectively arranged at two ends of the cylinder body to control the oil inlet and outlet quantity above and below the piston in the inner cavity of the cylinder body, so that the piston rod is fixed and the cylinder body ascends or descends; the piston rod rotates to drive the first arm rod to rotate, the first arm rod is rotationally connected with the second arm rod, and the second arm rod is fixedly connected with the tray. The quick die changing device meets the quick die changing requirement of large equipment, is flexible to operate and short in changing time, improves the forging efficiency and does not occupy extra sites after being used.

The utility model relates to an electric furnace feeding device and belongs to the field of material transportation. A waste steel conveying device (1), a rear section conveying device (2), a connecting conveying device (4) and an automobile material receiving groove (5) are sequentially arranged in the waste steel conveying direction. At least two electric furnace modules are arranged at the rear section conveying equipment (2) in parallel, the electric furnace modules are connected to an electric furnace feeding conveyor (3) through a material distributing device (9), and the electric furnace feeding conveyor (3) is used for conveying waste steel into an electric furnace; and the material distributing device (9) is used for distributing materials to the electric furnace according to the matched electric furnace requirements. According to the scheme, the relative position of the electric furnace main workshop and the steel scrap yard is not limited, the site utilization rate and flexibility are effectively improved, the logistics pressure in the factory can be effectively relieved, the logistics efficiency is improved, and the intermediate transfer and logistics cost is reduced.

The utility model relates to the technical field of waste treatment, in particular to combined type adhesive sticker waste crushing and packaging integrated equipment which comprises a crushing device and a compressing and packaging device, and an installation part is detachably connected between a discharging port of the crushing device and a feeding port of the compressing and packaging device. When the installation part is connected between the discharging port of the crushing device and the feeding port of the compressing and packaging device, a conveying channel is formed, and the crushing device and the compressing and packaging device are combined into a whole for use. And after the mounting piece is detached, the crushing device and the compressing and packaging device are independently used. According to the equipment, rapid connection and separation of the crushing device and the compressing and packing device are achieved through the detachable mounting piece, so that a user can easily switch between an integrated operation mode and an independent operation mode according to actual needs to adapt to different working scenes.

The invention discloses a power supply control method which is used for controlling a power supply system, the power supply system is used for supplying power to a low-voltage load unit, the power supply system comprises at least one power supply source and power supply devices arranged in one-to-one correspondence with the power supply sources, and the power supply devices are connected with the corresponding power supply sources. The power supply device comprises a power conversion module; wherein the power conversion module of at least one power supply device comprises a battery unit; the power supply control method comprises the following steps: in at least one power supply device, taking the power supply device with a power conversion module comprising a battery unit as an energy storage power supply device, and judging whether all power supplies are in a power-off state or not; if yes, the energy storage power supply device supplies power to a low-voltage load unit; and if not, the power supply in the power supply state and the corresponding power supply device supply power to the low-voltage load unit. According to the power supply control method, the uninterrupted power supply function can be realized by utilizing the energy storage power supply device of the power supply system.

The invention discloses a walking training sky rail system suitable for being installed in a stair environment, which comprises a rail and a machine head, and the machine head walks along the rail; the track comprises a flat road section and a slope road section; the machine head comprises a bearing body, a roller mechanism and a driving mechanism, the roller mechanism and the driving mechanism are arranged on the bearing body, the roller mechanism rolls in the track, the driving mechanism comprises a power assembly and a lever assembly, the lever assembly comprises a lever, a spring plunger, a driving gear and a driving roller, and the driving gear and the driving roller are arranged on the lever. The spring plunger is arranged above the head end of the lever and used for applying downward pressure to the head end of the lever, and when the machine head walks on a rail slope section, the driving gear drives the machine head to walk; when the machine head walks on a rail flat road section, the machine head is driven by the driving rollers to walk; the device is suitable for various training scenes, cross-floor training can be achieved, the stair climbing training requirement of a patient is met, the diversity of rehabilitation training is improved, and the utilization rate of a hospital site is increased.

The present invention discloses a universal tooling for assembling and welding a coupler beam. The tooling is symmetrically arranged, and includes a platform, a clamping control unit, a pushing control unit, and a flipping control unit. The platform serves as a substrate, and the clamping control unit, the pushing control unit, and the flipping control unit are respectively arranged as hydraulic devices. The clamping control unit clamps the T-beam and the vertical plate of the coupler beam so as to clamp the coupler beam on the tooling. The pushing control unit is arranged at both ends of the T-beam on the oblique side of the coupler beam, that is, at both ends of the oblique beam, and cooperates with the slide rail to push the oblique beam inward. The flipping control unit is arranged at both ends of the T-beam, and the hydraulic force flips the T-beam outward to realize the reverse deformation before welding. The present invention adopts a hydraulic device for clamping, and has an adjustable reverse deformation function. The constant clamping force and the consistent reverse deformation state can effectively control the welding deformation of the product, and the automation degree is high, and the production efficiency is improved. The universality is high, and a set of tooling can assemble 3 categories and 5 types of coupler beam products.

The utility model discloses a kind of stacking truck loaders, including guide rail, machine body, conveyer belt, rotating mechanical arm and two stacking gates;Guide rail is installed on the top of workshop;Machine body is provided with sequentially arranged feeding position, receiving position and two discharging positions along the length direction of itself;Conveyer belt is used to convey material at feeding position to receiving position along horizontal direction;Rotating mechanical arm is installed in machine body, including rotating mechanism and two material taking manipulators, for driving two material taking manipulators synchronous rotation around the rotation center of rotating mechanism, so that one of material taking manipulators is grabbed to one discharging position in receiving position, while another material taking manipulator moves from another discharging position to receiving position to take material;Two stacking gates are slidingly installed in gate installation rail.The utility model technical scheme can improve stacking efficiency.

The invention discloses building assembly type hollow wallboard production equipment and process. The building assembly type hollow wallboard production equipment comprises a wallboard forming machine for producing a building assembly type hollow wallboard through a concrete pouring process and an automatic tube drawing bench for placing a reinforcement cage, placing and drawing out a hole-forming circular steel tube and placing a base die. The wallboard forming machine adopts a vertical forming template; an automatic tube drawing bench is arranged above a machine frame of the wallboard forming machine, the automatic tube drawing bench lifts a reinforcement cage together with the hole-forming circular steel tubes which are inserted into the reinforcement cage and are arranged and fixed and the base die into the forming template, and the multiple hole-forming circular steel tubes in a wallboard which is formed by casting in the wallboard forming machine are vertically drawn out. According to the production line, assembly type wallboards are produced through vertical upright forming, automatic mold filling and automatic mold removing can be achieved, the production efficiency of a production site can be fully exerted, the labor intensity of workers and labor consumption can be effectively reduced, and the production line is a flow production line formed by grouping a plurality of single wallboard forming machines. And the problem of realizing full-automatic flow line production of large-size concrete members of the fabricated hollow wallboards is radically and thoroughly solved.

The invention relates to the technical field of wall-mounted boxes, in particular to a movable support for wall-mounted box assembling, which comprises a base, operating tables for placing the wall-mounted box are hinged to two ends of the base, the base is provided with a fixing mechanism, and the fixing mechanism is used for fixing an included angle between the base and the operating tables. The operating table is connected with a clamping mechanism, and the clamping mechanism is used for clamping and fixing a wall-mounted box placed on the operating table; the base is connected with a supporting frame, and the supporting frame is used for supporting the ends, away from the base, of the two operation tables. The wall-mounted box has the effects of improving the installation convenience of the wall-mounted box and improving the working efficiency.

The utility model relates to a stacking type transfer robot, and belongs to the technical field of transfer equipment. In order to overcome the defects that an existing transfer robot is low in load, cannot be used for a tray shaped like a Chinese character'tian ', and is low in goods taking speed and low in efficiency, the stacking type transfer robot which is high in load and can be used for the tray shaped like the Chinese character'tian' is provided. The stacking type transfer robot comprises a robot chassis, a lifting steel frame assembly is installed on the robot chassis, a pallet fork assembly capable of moving up and down along the lifting steel frame assembly is arranged on the lifting steel frame assembly, and a front automatic telescopic supporting assembly capable of horizontally stretching out and drawing back along the robot chassis is installed on the robot chassis. The two sets of front automatic telescopic supporting assemblies are located on the two sides of the pallet fork assembly. The robot can be suitable for a tray shaped like a Chinese character'chuan 'and a tray shaped like a Chinese character'tian'; the stability is good, and the loading of heavy goods can be realized; fork teeth in the pallet fork assembly can move independently, only the fork teeth need to move during goods taking, the goods speed is high, and the efficiency is high.

This utility model discloses a lateral explosion relief device with limiting function for thermal runaway in energy storage cabinets, including a base sealing gasket, a base flange, a sealing gasket, a housing, and pressure relief elements. The base sealing gasket and base flange work together to achieve a seal. The base flange is manufactured through sheet metal processing, allowing for material selection and enhanced corrosion resistance. The pressure relief element controls the opening pressure and consists of an explosion relief gasket and an explosion relief screw. A rotating shaft and rotating bracket work together to allow the housing and other components to rotate and open during explosion relief. A traction component provides a 40°-60° limit, changing the direction of the explosion relief pressure. The device incorporates insulation cotton to ensure the energy storage cabinet's insulation effect, and the base assembly structure has good waterproofing. This device solves the problem of lateral explosion relief in energy storage cabinets, allows for stacking to improve site utilization, provides guiding and limiting functions to avoid explosion damage, and offers high stability and safety.

This utility model discloses a plug-in type above-ground swimming pool assembly, including a pre-embedded groove set around the perimeter of the pool bottom and several plug plates inserted into the pre-embedded groove. Adjacent plug plates are connected to each other to form a closed ring structure. A spring base is provided at the bottom of the pre-embedded groove, and several elastic buckles are provided on the outer side of the top of the pre-embedded groove. The plug plates are provided with lock holes corresponding to the elastic buckles. This utility model has the characteristics of flexible use, convenient assembly and disassembly, short construction time, low cost, and high assembly safety.

The utility model provides an auxiliary butt joint device of multiple connectors, comprising a butt joint assembly, a second surface of which is provided with a plurality of first connectors; the first surface of the base assembly is provided with a second connector matched with the first connector; the auxiliary butt joint assembly comprises two sets of transmission matching structures and horizontal driving mechanisms which are symmetrically arranged, the transmission matching structures are arranged on the second surface of the butt joint assembly and located on the two sides of the first connector, and the horizontal driving mechanisms are arranged on the first surface of the base assembly, located on the two sides of the second connector and correspond to the transmission matching structures; the horizontal driving mechanism acts on the transmission matching structure through horizontal movement, converts horizontal driving force into acting force in the vertical direction, and drives the butt joint assembly to vertically move relative to the base assembly, so that butt joint or separation of the first connector and the second connector is achieved. By ingeniously applying a mechanical transmission principle, a larger acting force of the connector is converted into a smaller push-pull force which is convenient for manual operation.

The present invention discloses a steam curing production line and a steam curing method for precast concrete components. The production line is composed of a steam heat source machine system, a steam transmission pipeline, a mold platform, and a steam curing shed. The water is converted into dry steam by the steam heat source machine and distributed to various pipelines through the steam cylinder, and finally enters the steam curing shed of the production line. Each valve on the steam transmission pipeline controls the mold platform group separately, and the temperature and humidity are controlled by the steam curing shed and the temperature and humidity sensing probe. The temperature control during the curing process is divided into heating and then natural cooling, wherein the insulation time of each stage is strictly controlled, and the strength of the component is ensured to meet the specified requirements after the final natural cooling. The present invention saves energy, reduces consumption, reduces emissions and increases efficiency. The cost is low, the floor space is small, the site utilization rate is high, the operation flexibility is high, the curing effect is good, the demoulding time is shortened, the demoulding strength is improved, the production efficiency is improved, there is no crack on the surface of the component, and the utilization rate of thermal energy is high.

The invention relates to a baseball sports field structure on a soft soil foundation and a construction method, comprising a turtleback field and a drainage system. The terrain of the turtleback field gradually descends from a high place to the surrounding areas, presenting a natural slope. The drainage system comprises an annular drainage ditch surrounding the turtleback field, a plurality of blind ditches arranged at intervals in the turtleback field, and a blind pipe laid in the blind ditch. The two ends of the blind pipe are respectively connected to the annular drainage ditch, and a water-permeable hole is arranged in the lower part of the blind pipe. The foundation of the turtleback field is a soft soil foundation. An annular drainage ditch and a blind ditch are pre-dug on the soft soil foundation to form a reinforced concrete base. Concrete is poured on the surface of the soft soil foundation, the annular drainage ditch and the blind ditch to form a reinforced concrete base. Gravel is filled in the blind ditch until it is flush with the surface of the reinforced concrete base on both sides of the blind ditch. Permeable asphalt is poured on the surface of the reinforced concrete base. A high-performance permeable elastic pad is laid on the surface of the permeable asphalt. An artificial turf is laid on the surface of the high-performance permeable elastic pad.

The utility model discloses a corner conveying device for roll material slitting in the hygienic product industry, which comprises one or more groups of corner conveying structures, and two adjacent groups of corner conveying structures are arranged in a staggered manner along the X-axis direction and the Y-axis direction; a plurality of strip-shaped materials formed after roll-shaped materials are cut are steered in the same X-axis coordinate through the corner conveying structure, the strip-shaped materials before steering form interlayer separation along the Z axis under the dislocation effect of the lifting mechanism, and the strip-shaped materials after steering are linearly conveyed into the rolling devices arranged linearly along the Y axis. By means of the corner conveying device, the material conveying direction of the unwinding device and the material conveying direction of the winding device can be perpendicular, the width of the unwinding device cannot affect the overall width of equipment, and the field utilization rate is increased; and when the coiled materials with different widths are switched, the turning angle of the turning roller does not need to be frequently adjusted due to different widths and numbers of the strip-shaped materials so as to realize centering, so that the working procedures are optimized.

The invention discloses a battery replacing device and method for an electric vehicle. The battery replacing device comprises a supporting and positioning mechanism used for bearing the vehicle and positioning the vehicle at the battery replacing position. The battery replacing bin is positioned below the supporting and positioning mechanism and is used for storing and charging the battery; the loading and unloading mechanism is used for taking out the low-power battery from the bottom of the vehicle or assembling the full-power battery to the bottom of the vehicle; the material taking and placing mechanism is used for placing the power-deficient batteries in the battery replacing bin or taking out the fully-charged batteries from the battery replacing bin; the first battery placing groove is used for bearing an insufficient-power battery; the second battery placing groove is used for bearing a full-power battery; and the conveying mechanism is used for changing the positions of the first battery placing groove and the second battery placing groove. The feeding and discharging mechanism directly takes out the power-deficient batteries from the bottom of the vehicle and places the power-deficient batteries in the first battery placing groove, the material taking and placing mechanism takes out the full-power batteries from the battery replacing bin in advance and places the full-power batteries in the second battery placing groove, and the full-power battery taking-out operation and the power-deficient battery storage operation do not need to be completed on site.