66results about How to "Meet layout needs" patented technology

The invention discloses an underground cable pipeline abnormity monitoring method and system, and the method comprises the following steps: S1, building a three-dimensional grid based on the regional soil distribution condition, and obtaining a collection point data set based on the three-dimensional grid and underground cable pipeline data; s2, acquiring acquisition distribution corresponding to each to-be-arranged sensor type based on the to-be-arranged sensor type and the acquisition point data set; s3, acquiring underground cable pipeline time sequence data acquired by each sensor based on acquisition distribution, and performing clustering analysis on the underground cable pipeline time sequence data to acquire abnormal data points; and S4, obtaining an abnormal position according to the abnormal data points and the collection distribution, and outputting abnormal information of the underground cable pipeline according to the abnormal position. The method has the beneficial effects that the physical position of the cable pipeline is considered, meanwhile, the soil environment characteristics are considered, the accuracy of sensor arrangement in the pipeline is improved, the abnormal data point analysis efficiency is improved, and the underground cable pipeline abnormity can be conveniently and timely checked.

The invention discloses a forecabin structure, a bearing type vehicle body and a vehicle, the forecabin structure comprises a longitudinal structure assembly, the longitudinal structure assembly comprises a longitudinal beam assembly, the longitudinal beam assembly comprises a first longitudinal beam and a second longitudinal beam, and the first longitudinal beam and the second longitudinal beam are spaced in the first direction and extend in the second direction; the torsion box is located at one end of the longitudinal beam assembly in the second direction; the other end, located in the second direction of the longitudinal beam assembly, of the first connecting piece is provided with the first connecting piece, and the first connecting piece is connected with the first longitudinal beam and the second longitudinal beam. The longitudinal beam assembly is arranged to be of the double-longitudinal-beam structure, the rectangular frame structure is formed in the forecabin structure, and the overall strength and rigidity of the forecabin structure can be improved. While the strength and the rigidity are improved, the arrangement requirements of a large tire, a short front overhang and a short L113 can be met.

The invention provides a pole column and a battery cell, the pole column comprises a bottom plate and a column body arranged on one side surface of the bottom plate, the side surface of the bottom plate provided with the column body is provided with a supporting area arranged along the circumferential direction of the column body, the supporting area is used for supporting a sealing element sleeved on the column body, the supporting area divides the side surface into two side areas which are oppositely arranged, and the two side areas are arranged on the side surface of the bottom plate. And a weight reducing groove is formed in at least one side part area. According to the pole disclosed by the invention, the supporting region is arranged on the bottom plate, so that the use effect of the sealing element is ensured, the weight reduction groove is formed in at least one side region of the bottom plate, so that the weight and the production cost of the pole are reduced, the lightweight design of the battery cell is also facilitated, and the welding effect of the bottom plate and the tab is not influenced; therefore, a good using effect is achieved.

The invention provides a building space layout three-dimensional model generation method and device. The method comprises the steps that a plane structure chart of a target building and text description information for layout design requirements of the target building are acquired; generating a layout fusion feature vector based on the planar graph layout feature of the planar structure graph and the text layout feature of the text description information; inputting the layout fusion feature vector into a pre-trained spatial layout generation model to obtain a spatial layout of the target building, and generating a scene function matrix based on the spatial layout, the layout fusion feature vector and the text layout feature; and inputting the scene function matrix into a pre-trained three-dimensional generative adversarial network to generate a spatial layout three-dimensional model of the target building. According to the method and the device, the spatial layout three-dimensional model which is reasonable in space, complete in function and capable of meeting requirements is generated on the basis of reserving the basic structure of the building.

The electrically-driven bulldozer frame comprises a frame assembly, a connecting column is arranged at the front end of the frame assembly, a balance beam mounting frame is arranged in the middle of the frame assembly, a rear axle box is arranged on the rear portion of the frame assembly, the frame assembly comprises frame bodies which are symmetrically arranged, and the two ends of the balance beam mounting frame are connected into the frame bodies in an embedded mode; the rear axle box comprises a left shell and a right shell, and the left shell and the right shell are connected through a front panel, a rear panel, a top plate and a bottom plate to form a box body structure. A connecting pipe and a pivot mounting base are arranged in the rear axle box, the two ends of the connecting pipe are connected with the left shell and the right shell respectively, the pivot mounting base and the bottom plate are integrally arranged, and the two ends of the pivot mounting base are connected with the left shell and the right shell respectively; guide rails are symmetrically connected to the inner sides of the bottoms of the left shell and the right shell; an inlet-outlet for the guide rails to slide outwards is formed in the bottom of the rear panel; a mounting access hole is formed in the top plate; and an opening is formed in the connecting pipe. The system can meet the use requirement of a new energy vehicle frame, and can meet the arrangement requirement of a large number of electrical elements and pipelines.

The invention provides an automatic drawing method and system based on a BIM (Building Information Modeling) of a long and large linear project in the traffic field, and the method comprises the steps: obtaining a two-dimensional view based on the BIM, and carrying out the marking and releasing of the model in the two-dimensional view, and constructing a complete view; designing a statistical table template based on actual demands, and extracting BIM model information to fill statistical table template content to generate a statistical table; a drawing template is designed based on actual demands, wherein the drawing template comprises a mapsheet, a drawing frame, a countersign column, a project information column and / or a drawing area; selecting a required drawing template, performing layout on the drawing area to construct a view template, and obtaining a required two-dimensional view and / or a statistical table based on the view template to generate a complete drawing; drawing output parameter setting is conducted on the complete drawing, output content is selected, printing configuration parameters are set, and the drawing is printed and output. According to the method, the drawing efficiency can be greatly improved, human resources are saved, manual errors are reduced, the readability of the drawing is enhanced, and a reader can quickly position effective information conveniently.

A prefabricated shear wall multifunctional steel bar limiting device comprises a customized mold table, multiple sets of fixed pedestals are symmetrically arranged on the front, back, left and right sides of the edge of the customized mold table in the radial direction, a height adjusting rod is fixed to each fixed pedestal, and a movable pedestal is in sliding fit with the height adjusting rods and is locked through a locking assembly. According to the multifunctional reinforcing steel bar limiting device for the prefabricated shear wall, the horizontal distance between reinforcing steel bars on the same layer can be accurately positioned, the vertical distance between the reinforcing steel bars on the upper layer and the lower layer can be effectively adjusted, and the reinforcing steel bar binding quality and efficiency are improved; in the concrete vibrating process, displacement deformation of the reinforcing steel bars can be effectively limited, the production quality of the pre-supporting shear wall is guaranteed, and multiple purposes, repeated utilization and combined use are achieved.

The utility model relates to the technical field of connector, specifically relates to a socket connector and battery pack. The battery pack includes battery pack casing and the socket connector fixed on the side wall of battery pack casing, and the socket connector includes socket casing and shield cover, and the socket casing has the installation surface and the plug-in cavity, and the plug-in cavity is equipped with the plug-in convex part, and the plug-in convex part is equipped with the plug-in terminal, and the shield cover includes the main cylinder of sleeveing in the plug-in convex part, and the one end of main cylinder is equipped with the everted edge near the bottom of plug-in cavity, and the end of everted edge is equipped with the shield wear -out part away from main cylinder, and the socket casing is equipped with the shield through -hole through plug-in cavity and installation surface, and the shield wear -out part is arranged in the shield through -hole and the tail end of shield wear -out part is equipped with the shield contact part, and the installation surface is equipped with the sealing structure in the periphery of shield wear -out part. The shield cover of step structure can reduce the size of socket connector, and avoid occupying too much space.

The invention provides a hybrid drive robot joint and a working method, relates to the field of robots, and aims to solve the problems of joint return errors, system vibration and dynamic precision reduction caused by transmission backlash of a precision speed reducer in existing robot joint drive. The first motor and the main driving unit of the RV speed reducer are combined with the compensation unit of the torque motor, so that the output shaft is simultaneously subjected to the synergistic effect of hybrid driving, and the torque motor outputs real-time controllable reverse compensation torque, so that gears in the RV speed reducer are always kept in tight engagement, the transmission backlash is effectively eliminated, and the service life of the RV speed reducer is prolonged. Compared with a traditional mechanical pre-tightening method, the defect that the compensation effect is attenuated due to long-term operation is overcome, stability and effectiveness can be kept in the whole process through a compensation mechanism of a torque motor, the transmission precision and position consistency are improved, the rigidity and dynamic response performance of robot joints are improved, vibration and track disturbance in the movement process are reduced, and the reliability is improved. And the robot is more stable and reliable in performance when executing work such as precise assembly and high-precision positioning.

The utility model belongs to the technical field of assembly line equipment, and provides a combined type reversing conveying device which comprises a center conveying part and end reversing parts, the center conveying part is provided with two conveying belts which are arranged in parallel and operate reversely, and the end reversing parts are detachably arranged at the two ends of the center conveying part. A feeding port and a material taking port which are communicated with one conveying belt are formed in one side of the center conveying part, and the end reversing part is provided with a reversing assembly fixedly connected with the end reversing part. The reversing assembly comprises a portal frame fixedly erected above the conveying belt, a suspension frame capable of transversely moving in a reciprocating mode and arranged on the portal frame, and a reversing shifting plate arranged on the suspension frame in a lifting mode. The combined type reversing conveying device is simple in structure, convenient and fast to use, small in occupied space, low in installation and use cost and high in flexibility, and an assembly line can be freely combined and built according to production requirements.

The invention discloses a bevel gear box capable of infinitely adjusting a crossed axis angle, belongs to the field of bevel gear transmission, and aims to solve the problem that the conventional bevel gear box cannot meet the spatial angle arrangement requirement of transmission equipment due to the defect that the crossed axis angle is fixed and cannot be adjusted. The rotary bevel gear box part is arranged at the top of the fixed bevel gear box part, a power input shaft in the rotary bevel gear box part is inserted into the end of a power output shaft in the fixed bevel gear box part and rotates synchronously with the power output shaft in the fixed bevel gear box part, and a box body of the rotary bevel gear box part is embedded into the top of a box body of the fixed bevel gear box part. And a box body of the rotary bevel gear box part is detachably connected with a box body of the fixed bevel gear box part. The bevel gear box structure is mainly used as a bevel gear box structure for meeting the transmission requirement in a workpiece power loading test bed.

The invention discloses a layout method, device and equipment for frequency selection units, relates to the technical field of communication, and can perform projection coordinate calculation on the frequency selection units in combination with a measuring point distance field, so that the frequency selection units are uniformly distributed on a curved surface as far as possible. The method comprises the following steps: obtaining a geodesic distance field of a target curved surface calculated along a heat conduction direction, wherein the geodesic distance field is a distance field formed by the shortest path length between two nodes on the target curved surface; projection coordinate calculation is carried out on a contour line of the geodesic distance field according to the geodesic distance field, projection coordinates of the frequency selection unit are obtained, the contour line is a line formed by connecting equivalent points meeting the distance condition in the geodesic distance field, and the distance condition is that the geodesic distance in the geodesic distance field is the same as the preset reference distance; the reference distance is a periodic arrangement distance of the frequency selection units; and projecting the frequency selection units to a target curved surface point by point according to the projection coordinates of the frequency selection units to obtain the frequency selection surface of the quasi-periodic arrangement of the frequency selection units.

The invention discloses a fuel cell liquid supply pipeline and a liquid supply method, and solves the technical problem that the arrangement of a high-power electric pile liquid supply pipeline in the prior art affects the performance test of an electric pile. The fuel cell liquid supply pipe comprises a purging subsystem, at least one liquid supply subsystem and a liquid discharge pipeline, each liquid supply subsystem comprises a liquid supply source and a liquid supply pipeline, the liquid supply pipeline is provided with an in-pile safety valve and an electromagnetic valve, the in-pile safety valve is provided with an inlet, a first outlet and a second outlet, and the electromagnetic valve is communicated with a liquid inlet of an electric pile of a fuel cell; the purging subsystem comprises a purging gas source, a purging pipeline and an exhaust pipeline, and the other end of the purging pipeline is communicated with a liquid inlet of the electric pile; and the other end of the exhaust pipeline is communicated with the outside. According to the fuel cell liquid supply system, the liquid supply subsystems of multiple stacks can be connected, various tests of the fuel cell can be carried out, and the test accuracy is further improved under the condition that the liquid supply uniformity of cooling liquid of each electric pile entering the liquid inlet of the electric pile is improved.

The utility model relates to a motor controller, an electric assembly and a vehicle, the motor controller comprises a box body and an electric control device, a containing cavity and a welding plate are arranged in the box body, the welding plate is arranged in the containing cavity and connected to the inner wall of the box body, and the electric control device is arranged in the containing cavity and connected with the welding plate in a welded mode. The electric control device comprises a heat dissipation module, a liquid inlet pipe, a liquid outlet pipe and a power module, a cavity is formed in the heat dissipation module, a cooling medium is arranged in the cavity, the liquid inlet pipe and the liquid outlet pipe are both communicated with the cavity, a liquid inlet hole and a liquid outlet hole are further formed in the box body, the liquid inlet pipe is arranged in the liquid inlet hole in a penetrating mode, and the liquid outlet pipe is arranged in the liquid outlet hole in a penetrating mode. Heat dissipation modules are arranged on the two opposite sides of the power module, and the power module and the heat dissipation modules are arranged in an attached mode. Due to the fact that the electric control device is connected with the welding plate in the welding mode, the position of the welding plate in the containing cavity is adjustable, the arrangement of the electric control device is not limited by the shape and the internal space of the box body, and the box can adapt to different box bodies.

The present invention provides a method for generating building layout based on graph-constrained generative adversarial networks, including obtaining land use plots and building vector data in a target area to construct a data set; constructing a plot tuple and a building layout diagram and obtaining a training data set and a test data set; based on a graph-constrained generative adversarial network GCGAN, introducing a graph variational autoencoder network Graph VAE and a generative adversarial network GAN, constructing a building generation model and training it; using the graph variational autoencoder network Graph VAE to generate a building layout diagram and fine-tune it; and then using the generative adversarial network GAN to generate a corresponding building layout result. The present invention can achieve high-precision building layout, by using plot data, combining a graph variational autoencoder with a generative adversarial network, and optimizing the layout results using a node fine-tuning method, to generate a true and reasonable building layout, thereby improving the accuracy of building layout generation.

The utility model relates to the technical field of hydraulic transmission, specifically relates to a horizontal and vertical dual-purpose formula ultrathin hollow rotary oil cylinder, including cylinder body, casing, the casing outside is equipped with the push -in mouth, pull -out mouth, oil return, the casing upper surface outside is provided with the fastening mouth, the casing upper surface is equipped with the installation mouth, the casing middle part is provided with the hollow main shaft, hollow main shaft one end outer wall is equipped with the outer thread, hollow main shaft one end inner wall is equipped with the internal thread, the cylinder body outside is fixedly connected with valve shaft through the fixed peg, the cylinder body upside is equipped with the front lock mouth, rear lock mouth, the cylinder body upside is fixedly provided with the stop mouth, the hollow main shaft sets up in the cylinder body middle part, is connected through the bearing cooperation between the hollow main shaft and cylinder body. The utility model, adapts two kinds of installation postures, satisfies different equipment layout demand, the direction of oil return is not restricted, and the oil return distance is also longer than traditional device, and the overall length is also more short.

The invention discloses a method for printing a circuit board by using graphene conductive composite ink, which comprises the following steps of: printing a circuit diagram on heat transfer paper by using the graphene conductive composite ink, then carrying out heat transfer printing on a substrate, and carrying out ultraviolet curing. The ink-jet printing technology is combined with the heat transfer printing and ultraviolet light curing technology, the printing precision of a circuit diagram and the applicability of a substrate are remarkably improved, the conductive ink provided by the invention constructs an ink layer with high conductivity and mechanical strength by utilizing the synergistic effect of graphene and conductive macromolecules, traditional conductive metal particles are not needed, and the cost is low. And the circuit bearing capacity is obviously improved. Through optimization of heat transfer printing and ultraviolet curing conditions, stable combination of the ink layer and the substrate is ensured, meanwhile, the production period is greatly shortened, and the environmental protection property is enhanced. The production efficiency and the performance consistency of the circuit board are improved, the application range of the substrate is expanded, and an efficient and flexible solution is provided for complex circuit design.

A novel generator support belongs to the technical field of engines. A first generator mounting hole and a second generator mounting hole are formed in the support body and used for being fixedly connected with a generator assembly, and a first support mounting hole, a second support mounting hole, a third support mounting hole, a fourth support mounting hole and a fifth support mounting hole are formed in the support body and used for being fixedly connected with an engine cylinder. The first support mounting hole and the fifth support mounting hole are axial holes and used in cooperation with an axial positioning structure of an engine cylinder block, and an avoiding structure, a weight reduction structure and a plurality of reinforcing ribs are arranged on the support body. The novel generator support provided by the utility model has remarkable beneficial effects in the aspects of stably fixing a generator assembly, realizing lightweight design, optimizing spatial arrangement, improving assembly precision and stability, enhancing structural strength, facilitating maintenance and replacement, integrally casting and forming and the like, and has wide application prospect and market value.

The invention discloses an all-terrain vehicle. The all-terrain vehicle comprises a vehicle frame, a vehicle body covering part, a walking assembly, a suspension assembly, a power assembly and a seat assembly. The vehicle body covering part is at least partially arranged on the vehicle frame; the walking assembly is connected to the frame through the suspension assembly; the seat assembly is at least partially arranged on the frame; the vehicle body covering part comprises a composite plate, the composite plate is made of a heat insulation and / or sound insulation material, the composite plate comprises a first composite part arranged between the seat assembly and the power assembly, a transverse plane perpendicular to the length direction of the all-terrain vehicle is defined, and the projection of the first composite part on the transverse plane in the length direction is a first projection plane. The projection of the vehicle body covering part on the transverse plane in the length direction is a second projection plane, and the ratio of the area of the first projection plane to the area of the second projection plane is larger than or equal to 0.16 and smaller than or equal to 0.31. Through the arrangement, the riding comfort of the all-terrain vehicle can be improved, and the light weight of the all-terrain vehicle is achieved.

The utility model discloses a gearbox hanging bracket and a commercial vehicle, and belongs to the field of vehicles. According to the technical scheme, the gearbox hanging bracket comprises a hanging bracket beam, hanging assemblies are arranged at the positions, close to the two ends, of the bottom face of the hanging bracket beam respectively, and gearbox connecting structures are arranged on the opposite side faces of the lower ends of the two hanging assemblies. The gearbox hanging bracket structure has the advantages that the gearbox is installed in a two-side hanging mode, the hanging assembly and the gearbox coincide in the height direction, the distance between the gearbox and the hanging beam is shortened, the overall height of the gearbox hanging bracket structure and the gearbox is reduced, the overall structure is not higher than the upper plane of a vehicle frame, and meanwhile the overall structure is not higher than the upper plane of the vehicle frame. The ground clearance is increased; and meanwhile, the mounting firmness of the gearbox is improved through two-point hoisting.

The spherical support comprises an upper support, a lower support and a spherical crown arranged in the top of the lower support, a plane friction pair is connected between the top of the spherical crown and the bottom of the upper support, and a curved surface friction pair is connected between the spherical crown and the lower support. The plane friction pair comprises an oval plane sliding plate fixed to the bottom of the upper support and a round plane on the top of the spherical crown. The oval plane sliding plate can move on the round plane in the long-axis or short-axis direction of the oval plane sliding plate. Limiting stop blocks are arranged on the two sides, in the short axis direction of the oval plane sliding plate, of the bottom of the upper support. According to the method, the problem of welding a plane stainless steel plate is solved, the troubles of unstable welding quality, easy generation of welding defects and the like caused by a welding process are avoided, meanwhile, the corresponding welding cost and time cost are reduced, and the manufacturing and mounting processes of the support are simpler, more convenient and more efficient.

The present invention provides a vehicle-mounted video, CAN and GPS integrated monitoring system and equipment, the system includes: a shell, the shell includes a main body, an upper cover, a front baffle and a rear baffle; a video acquisition module; a CAN acquisition module and a 4G communication module; wherein the video acquisition module includes a video module mainboard and a hard disk, and the CAN acquisition module includes a CAN module mainboard and a 4G communication module; the video module mainboard is fixed on the main body, and the CAN module mainboard, the 4G communication module and the hard disk are fixed on the upper cover. The system integrates the video module and the CAN acquisition module together, and when arranged, the video module is arranged on the main body and the CAN module is arranged on the upper cover. While ensuring a safe distance, the heat of the lower video module is introduced into the shell body through a thermal conductive adhesive, and the heat of the upper CAN module is introduced into the upper cover through a thermal conductive adhesive, thereby solving the mutual influence caused by the heating of the modules, maximally ensuring the compactness of the overall structure of the product, and bringing convenience to the arrangement, installation and use.

The utility model provides a collapsible loess geotechnical lime soil compaction pile construction device, including the clamping lever hammer, the upper end of clamping lever hammer is provided with the mounting groove, the inside of mounting groove is provided with sensor unit, the inside of sensor unit is provided with displacement sensor and inertial sensor, the back surface fixedly connected with magnet of sensor unit, the upper end fixedly connected with satellite positioning module of clamping lever hammer. The utility model discloses setting sensor unit and satellite positioning module on the clamping lever hammer, real -time accurate collection pile body movement data, dynamic adjustment hammering strength, frequency, filling amount etc. Construction parameter, ensure that the pile is stable, accurate, promote the pile foundation construction quality.

The utility model provides a micro-rectangular high-speed inter-board connector. The micro-rectangular high-speed inter-board connector comprises a male-end connector and a female-end connector, the male end connector comprises a male end shell, a male end insulation body and a male end terminal assembly, the male end insulation body is arranged in the male end shell, the male end terminal assembly is arranged in the male end insulation body, and the female end connector comprises a female end shell, a female end insulation body and a female end terminal assembly. The female end terminal assembly is arranged in the female end insulation body. Wherein the male-end terminal assembly comprises a plurality of male-end signal terminals, the female-end terminal assembly comprises a plurality of female-end signal terminals, the male-end signal terminals and the female-end signal terminals are arranged in a micro-rectangular manner, and the male-end signal terminals and the female-end signal terminals are plugged in a one-to-one correspondence manner. The micro-rectangular high-speed inter-board connector is high in integration level, can meet the layout requirement of a compact space in electronic equipment, and improves the quality and stability of signal transmission.

The invention provides a detachable high-voltage bus corner insulation sleeve, and relates to the technical field of high-voltage insulation, the detachable high-voltage bus corner insulation sleeve comprises a support and a wire body installed on the support, the wire body is provided with an insulation assembly, the insulation assembly comprises a corner mechanism and a positioning mechanism, and the corner mechanism comprises an insulation sphere, a sliding ring and a positioning ring. The insulating ball body and the sliding ring sleeve the wire body, and the positioning ring is installed on the sliding ring and is in sliding fit with the insulating ball body. According to the invention, the insulating ball body is matched with the sliding ring and the positioning ring, so that the bus can freely rotate in multiple directions, multi-angle bending is realized, different installation environments and electrical layout requirements are met, and the matching of the sliding ring and the positioning ring can adaptively adjust and control the rotation angle range. The reliability and the protection effect of the corner of the wire body are improved.

The water storage container comprises a container body, the container body is provided with a water inlet pipe and a water outlet pipe, a water storage box is arranged in the container body, the water inlet end of the water inlet pipe extends out of the container body, and the water outlet end of the water inlet pipe is communicated with the water storage box. The water storage box is provided with a water outlet hole for communicating the water storage box with an inner cavity of the container body, the water inlet end of the water outlet pipe is arranged at the lower end of the inner cavity of the container body, the water outlet end of the water outlet pipe extends out of the container body, and when water enters the water inlet pipe, water in the inner cavity of the container body is squeezed into the water outlet pipe so that the water outlet pipe can discharge water. According to the water storage container, water can be discharged without external force, the water storage box is adopted to provide buffering for water inlet, the water temperature in the container can be prevented from rapidly rising, the water amount of discharged cold water is ensured, the requirement of a user for water outlet with a certain capacity can be met, and the use experience of the user can be improved.

The present application discloses a layout method for heterogeneous FPGAs, and relates to the field of FPGA technology. The method converts a user input netlist into an equivalent netlist, and the module size difference between any two functional modules with a traction relationship in the equivalent netlist does not exceed the difference threshold. Then, under the constraints of the position constraint information of the equivalent modules in the equivalent netlist, the layout is solved using functional modules with similar module sizes according to the equivalent netlist, and the legal layout position of the original routable module is restored to complete the layout. The present application converts the problem of mixed layout of functional modules of different module sizes in heterogeneous FPGAs into the layout problem of functional modules of the same specification module size, thereby improving the accuracy of traction and force addition between functional modules, and then improving the layout quality.

The invention discloses an anti-toppling power line supporting frame, and relates to an auxiliary tool for power construction, a supporting frame mounting seat is of a concave structure, the lower side of a power line is wrapped and fixed in the supporting frame mounting seat through a movable clamping hand and a spring, and a toggle rod clamping mechanism is matched to drive a butterfly knob and a clamping block to form upper side downward pressing and clamping, so that a double-fixing structure is formed; a first hinge seat is arranged at the bottom of a rod body of the supporting frame, a second hinge seat is slidably connected to the rod body, the first hinge seat and the second hinge seat are connected with supporting legs and connecting rods through hinge pieces respectively to form triangular stable supporting, and the supporting legs are further provided with adjusting screws and lengthened supporting legs to adapt to the uneven ground. The weight increasing disc is installed at the bottom of the rod body of the supporting frame, the gravity center can be reduced through the detachable weight increasing block, the anti-toppling capacity is enhanced, the supporting frame meets the multi-scene operation requirement, illumination can be provided in the dark environment, and the safety and operation efficiency of power line overhead in power construction are guaranteed.

The utility model discloses a lightweight nitrogen-making modular unit device capable of being quickly disassembled and assembled, which relates to the technical field of nitrogen making and comprises a base, a preparation tank is mounted at the top of the base, and the bottom of the preparation tank is fixed at the top of the base through support legs which are annularly distributed at equal intervals; an exhaust pipeline and an air inlet pipeline are arranged on the outer side of the preparation tank body, the exhaust pipeline and the air inlet pipeline are connected through a quick connection structure, the quick connection structure comprises a first sealing plug arranged in the exhaust pipeline in a sliding mode, and a second sealing ring is fixedly connected to the inner wall of the air inlet pipeline. According to the light-weight nitrogen-making modular unit device capable of being quickly disassembled and assembled, when pipelines are separated, a first reset spring pushes a first sealing plug to reset and is in interference fit with a first sealing ring, and a port of an exhaust pipeline is closed; and the second sealing plug of the gas inlet pipeline returns under the action of the second reset spring and forms one-way valve sealing with the second sealing ring, so that a gas leakage path is thoroughly blocked, and gas leakage or backward flowing of external impurities is prevented.

The utility model discloses a commercial vehicle body floor structure which comprises a floor panel structure and a floor frame structure, the floor panel structure covers the floor frame structure, and the floor panel structure and the floor frame structure are matched to form a floor panel frame assembly. The floor frame structure comprises a plurality of first floor side cross beams, a pair of doorsill beams, at least two fixed longitudinal beams, a plurality of second floor side cross beams and fixed cross beams, and the floor panel structure is connected with the first floor side cross beams, the doorsill beams, the fixed longitudinal beams, the fixed cross beams and the second floor side cross beams. The novel convex floor has the beneficial effects that the driving space in a vehicle is superior to that of a traditional convex floor, the rigidity of a vehicle body and the whole vehicle is improved, the novel convex floor is very stable, the whole floor is straight and simple in structure, compared with an integral floor, the novel convex floor is lighter in weight, cost and weight control is facilitated, the new energy heavy truck chassis arrangement requirement is met, the vehicle body rigidity and strength requirements are met, and the excellent cab space is achieved.