129results about How to "Save vertical space" patented technology

A basement engineering waterproof and drainage method is provided. The wall footing of the outside wall in basement engineering is embedded in watertight or micro-watertight soil rock layer or cement soil layer. The wall footing intercepts water by a thin-part structure. The cushion of the basement engineering soleplate and the falling layer of the top board are composed of combined water-proof layers. The late poured band, the movement joint and the horizontal construction joint at the lower part of the outside wall are treated by a water-proof structure combined with waterproofing measures. The basement engineering is provided with a drainage system. The groundwater and surface water at the soleplate are drained into city drainage pipelines via a soleplate part of the drainage system. The rainwater of overburden layer bottom of the top board is then drained into city drainage pipelines via the indoor part of the drainage system. The invention is designed by adopting a one-body method of arranging the basement engineering waterproofing, drainage and anti-floating as well as underground engineering space enclosing structure and pipelines, thereby shortening the construction period, reducing the engineering cost, increasing the durability and reliability of underground building space enclosing structure and waterproof layer as well as pipelines.

A motor hold shaft installation type permanent-magnetic direct-drive bogie comprises two frame devices, two permanent-magnetic synchronous traction motors, two triangular elastic supporting devices and four wheel pair box devices, wherein two adjacent front and rear wheel pair box devices are connected through the frame devices, two wheels on the left and right symmetric sides are connected through an axel, the permanent-magnetic synchronous traction motors and the axle are integrated through rotors, and driving is realized by rotating the axel; the two frame devices are symmetrically located on the left side and the right side of the advancing direction of a railway vehicle and are connected by double traction rod devices, and the triangular elastic supporting devices are connected with the permanent-magnetic synchronous traction motors and the double traction rod devices. According to the motor hold shaft installation type permanent-magnetic direct-drive bogie, the permanent-magnetic synchronous traction motors are adopted, rotor excitation power is saved, the motor efficiency is improved, the transmission efficiency is improved further after a gear box device is saved, the wheel base of the bogie is shortened, and the motor hold shaft installation type permanent-magnetic direct-drive bogie has the advantages that energy is saved, environment is protected and the small curve through capacity is high, and can be widely applied to various urban railway traffic vehicles.

The invention discloses a sheathed millimeter wave satellite communication phased array antenna. Multiple modules are arrayed in a planar or non-planar manner through an active sub-array modularized design idea, and a phased array antenna array having an ultra low profile for communication of a large-scale millimeter wave satellite is formed. The low profile design of the millimeter wave phased array antenna is achieved on the basis of the integration design of a radio frequency circuit, applications of a multifunctional chip, utilization of a multilayer microwave plate and other relatively mature processes. The designed antenna system has a low profile and is high in integration level, the cost of the antenna is equivalent to that of the prior art, and the technology is highly mature. The designed antenna enables installing requirements to be conveniently achieved during satellite communication, and a rear-end module can undergo multibeam technology extension according to actual needs. The sheathed millimeter wave satellite communication phased array antenna is technologically feasible and variable.

The invention discloses a four-wheel-drive bow-type steering multipurpose tractor which comprises a rear frame and a front frame, wherein the rear frame is provided with a diesel engine, a gear box, a transfer box, a braking hub, a power output reduction box, a rear axle and travelling wheels; the front frame is provided with a turning device, a front axle and travelling wheels; a driving belt wheel of the diesel engine is connected with a driven belt wheel of the gear box; an output shaft of the gear box is connected with an input shaft of the transfer box; the two ends of an output shaft of the transfer box are connected with differential mechanisms; the braking hub is mounted at a middle shaft of the transfer box; the driven belt wheel is internally provided with a clutch, and connected with a transmission shaft I; the other end of the transmission shaft I is connected with the power output reduction box; one end of a rear power output shaft achieves rear power output; a driving chain wheel is mounted at the other end of the rear power output shaft, and connected with a driven chain wheel at one end of a transmission shaft II; a small driving chain wheel at the other end of the transmission shaft II is connected with a small driven chain wheel on a transmission shaft III of the turning device; and a front power output shaft of the turning device is connected with matching machines and tools to achieve front power output. The four-wheel-drive bow-type steering multipurpose tractor is provided with multiple power output ports, and is flexible in steering and wide in application scope.

A chair for facilitating efficient stacking includes a seat element having a seat frame, a plurality of front legs attached to a front portion of the seat element, a plurality of rear legs attached to a back portion of the seat element, and one or more telescopic leg mechanisms disposed on at least one of the front or rear legs, wherein the telescopic leg mechanisms provide for lateral movement of the at least one of the front or rear legs with respect to the seat element.

The invention provides a structure and a method for increasing the height of a corridor ceiling. The structure comprises a pipeline ceiling combined supporting hanger, a strong current wire groove and an air-conditioner cold water supply and water returning pipe which are arranged along the longitudinal direction of a main beam, wherein the pipeline ceiling combined supporting hanger is hung to a secondary beam or a floor top plate; the air-conditioner cold water supply-return pipe is directly arranged on the pipeline ceiling combined supporting hanger; the strong current wire groove is hung below the floor top plate. Due to the fact that except the part, which passes the secondary beam and is provided with a lower concave part used for crossing the secondary beam, of the strong current wire groove, the other parts of the strong current wire groove are arranged in the space between the bottom surface of the secondary beam and the bottom surface of the floor top plate, the ceiling elevation of a corridor is obviously improved. Due to the fact that a pipeline supporting hanger and a ceiling supporting hanger are combined into the pipeline ceiling combined supporting hanger, and the pipeline ceiling combined supporting hanger simultaneously plays the role of supporting the air-conditioner cold water supply-return pipe, a keel and a ceiling, so that a main keel in the original ceiling supporting hanger is eliminated, and the ceiling is further lifted.

The invention discloses a LNG (Liquefied Natural Gas) mobile filling vehicle with a filling structure and belongs to the technical field of low-temperature liquid mobile filling, storing and transporting vehicles. The LNG mobile filling vehicle with the filling structure comprises a tractor vehicle, a LNG low-temperature storage tank, a tank bottom type filling mechanism, a special semi-trailer chassis walking mechanism, a rear operation pipeline and a bin body, wherein the LNG low-temperature storage tank, the tank bottom type filling mechanism, the rear operation pipeline and the bin body are mounted on the special semi-trailer chassis walking mechanism so as to form a low-temperature liquid semi-trailer; the low-temperature liquid semi-trailer is suspended on a traction seat of a traction 1 by means of a traction pin so as to form a whole vehicle. The LNG mobile filling vehicle with the filling structure not only has the function of stopping in any place at any time for independently filling LNG for LNG vehicles and dual-fuel vehicles, but also has the transportation function of transporting LNG by the road; meanwhile, the LNG mobile filling vehicle with the filling structure not only has the function of stopping in a fixed place at any time for independently filling LNG for LNG vehicles and dual-fuel vehicles, but also has the transportation function of transporting LNG by the road. Due to the lightweight design of the whole vehicle, the whole vehicle is relatively light in weight and relatively large in maximum filling weight or filling quantity.

The invention discloses an electromagnetic type magnetic rail brake, which is used for braking a railway vehicle when the railway vehicle runs. M electromagnets are equidistantly arranged in longitudinal space between rails and a longitudinal beam along the longitudinal direction of the rails, m is more than or equal to 2, the axial directions of the electromagnets are simultaneously perpendicular to the rails and the longitudinal beam, and two protecting stop blocks made of soft magnetic materials are symmetrically arranged at the two longitudinal ends of the longitudinal beam and are positioned between the longitudinal beam and the rails; opposite currents are inputted in each two optional adjacent electromagnets; the two protecting stop blocks and the two electromagnets which are closest to the protecting stop blocks form a magnetic circuit; the two electromagnets which are closest to the protecting stop blocks and the longitudinal beam form a magnetic circuit; the two electromagnets which are closest to the protecting stop blocks and the rails form a magnetic circuit; the two electromagnets which are closest to the protecting stop blocks and an air gap form a magnetic circuit; (m-1) closed working magnetic circuits consist of each two optional adjacent electromagnets, the longitudinal beam, the rails and the air gap; each two adjacent magnetic circuits share an electromagnet, and each electromagnet provides excitation for the two corresponding magnetic circuits; and the protecting stop blocks of which the ends have a protecting effect and the electromagnets adjacent to the protecting stop blocks form the magnetic circuits, so that the number of the electromagnets is reduced, the longitudinal space is saved, and the electromagnetic attraction is increased.

The invention belongs to the technical field of caterpillars and particularly relates to hybrid power transmission. A series-parallel connection hybrid power transmission device of a caterpillar comprises a front transmission part, a left side driving part, a left side output speed changing mechanism, a right side driving part, a right side output speed changing mechanism, a middle power coupling mechanism and a sell. According to the series-parallel connection hybrid power transmission device of the caterpillar, in view of motor power using, a straight-driving and steering power coupled double-motor-driving series hybrid power mode has the advantages that the structure is simple, double-current zero-differential-type steering motors and steering zero shafts can be omitted, and reducing of the longitudinal space of the transmission device is facilitated; through the middle power coupling mechanism, efficient transmission of steering reflux power can be achieved, and the technical requirements of the motors are effectively lowered; and through the middle power coupling mechanism, a path of engine power is introduced, during high speed or a stable driving working condition, a parallel connection hybrid power working condition is achieved, the two driving motors can still be used as steering motors to be responsible for steering of the caterpillar.

The invention provides a precise positioning table capable of switching stations. The precise positioning table comprises a station switching device, wherein the station switching device comprises a bearing table, a movable clamping and positioning device and a fixed auxiliary clamping and positioning device and is used for precisely positioning a borne object during station switching. According to the precise positioning table capable of switching the stations, the borne object is driven by virtue of the movable clamping and positioning device and the fixed auxiliary clamping and positioning device and is then moved. Compared with a manner that the movement of the borne object is driven by the movement of the bearing table in the prior art, the structure is relatively simple, and the space in the vertical direction is reduced; meanwhile, the positioning and guiding functions are simultaneously realized, and the movement of the borne object is carried out among the required stations. A mask table which has few vertical levels and a relatively simple structure and does not require much vertical space is provided.

The invention provides a permanent magnet linear launch device, which comprises a launch platform device, permanent magnet linear motors and a support platform used for supporting the launch platform device and the permanent magnet linear motors. Primary stages of the permanent magnet linear motors are arranged on the support platform; secondary stages of the permanent magnet linear motors are arranged on the launch platform device; a launch platform support plate used for supporting the launch platform device is arranged on the support platform, and the launch platform device can move relative to the launch platform support plate in the length direction of the launch platform support plate; two permanent magnet linear motors are arranged, i.e. a first permanent magnet linear motor and a second permanent magnet linear motor; the primary stage of the first permanent magnet linear motor and the primary stage of the second permanent magnet linear motor are arranged on both sides of the support platform symmetrically; the secondary stage of the first permanent magnet linear motor and the secondary stage of the second permanent magnet linear motor are arranged on both sides of the launch platform device symmetrically. The longitudinal space for launching is saved, and the efficiency of the permanent magnet linear launch device, and the stability and safety in the launching process are improved.

The invention discloses a traction device for hoisting a pipeline in a vertical shaft. The traction device comprises a docking support, a winch, steel cable limiting parts, a limiting sliding block and a crane. The docking support is used for being fixed to a top foot platform. The docking support is provided with fixed pulleys. A steel cable of the winch is wound around the fixed pulleys, and thefree end of the steel cable extends to the bottom of the vertical shaft and is provided with a tension weight in a suspending mode. The steel cable limiting parts are used for being fixed to the inner wall of the vertical shaft or a platform in the vertical shaft and are further used for being connected with the steel cable to prevent the steel cable from swinging in the horizontal direction. Thelimiting sliding block is used for being fixed to the pipeline to be hoisted, is detachably clamped onto the steel cable and can slide along the stable cable. The crane is used for hoisting the pipeline and conveying the pipeline downwards to a mounting position in the vertical shaft along the steel cable. The traction device prevents the steel cable from swinging in the horizontal direction through the steel cable limiting parts, so that the steel cable serves as a guide rail to guide the pipeline to be conveyed to the lower portion of the vertical shaft. The workload can be reduced, and theconstruction difficulty can be reduced. The invention further provides a traction method applied to the traction device.

The invention relates to a vertical plate hardening machine with automatic material discharging, which comprises a stander, a belt conveyor that is arranged inside the stander, a vertical plate frame that is arranged above the stander and can be lifted and lowered, and a group of vertical hardening plates that are arranged inside the vertical plate frame and can be opened and closed. A channel for refrigerants or secondary refrigerants is arranged inside each vertical hardening plate, a liquid feeding hose is arranged at one end of the channel and connected with a cooling medium discharging pipe of a refrigerating compressor by a main liquid feeding pipe, and a liquid returning hose is arranged at the other end of the channel and connected with a cooling medium collecting pipe of the refrigerating compressor by a main liquid returning pipe. A chain is arranged surrounding a driven chain wheel and a drive chain wheel inside the stander, a material placing board and a material discharging board are arranged under the vertical hardening plates, and the two ends of the material placing board and the material discharging board are connected with the chain. The vertical plate hardening machine with automatic material discharging mainly has the advantages of small lengthwise occupied space, high production capacity, convenient operation, simple hydraulic circuit, and safe and reliable actions.

A ventilated housing for accommodating one or more components comprises opposed first and second-spaced apart end portions. An air barrier extends at least partially between the first and second end portions for limiting movement of air inside the housing and defining an upper or lower surface of the housing. A first part of the air barrier proximate the first end portion is positioned at a level below the level of a second part of the air barrier proximate the second end portion. An inlet is defined for admitting air into the housing and an outlet is defined for discharging air from the housing. An ventilated housing assembly comprises first and second housings with an angled space between a lower air barrier of the first housing and an upper air barrier of the second housing.

The invention relates to a piezoelectric energy collection device and an application and method on a floating slab track. The piezoelectric energy collection device comprises an upper cover plate anda lower cover plate, a central block is arranged at the central position between the upper cover plate and the lower cover plate, a plurality of groups of piezoelectric ceramic stacks which are distributed in central symmetry by taking the central block as a center and are distributed along the radial direction are arranged between the upper cover plate and the lower cover plate, one ends of the piezoelectric ceramic stacks are supported on the central block, the other ends are supported on a pushing and pressing device for converting vertical pressure of the upper cover plate and the lower cover plate into radial horizontal thrust, and the floating slab track comprises the piezoelectric energy collecting device arranged in a steel spring vibration isolator. The invention comprises the piezoelectric energy collecting device which is high in bearing capacity, high in output power and low in vertical size. In addition, the piezoelectric energy collecting device is applied to the floatingslab track to form a floating slab track which can provide stable energy and has a safety protection function. The invention further provides a design method of the piezoelectric energy collecting device.

The invention discloses a positioning structure for an AGV assembly vehicle tray. The structure comprises a supporting mechanism, a jacking mechanism, a floating mechanism and a positioning mechanism.The supporting mechanism is used for bearing components, the jacking mechanism comprises a jacking air cylinder, a guide rod, two bearings, two sliding blocks and two sliding grooves, the sliding grooves comprises obliquely-upward sliding groove slopes, the floating mechanism comprises a third beam, the third beam is fixedly connected with the tops of the two sliding blocks, and the positioning mechanism comprises two positioning air cylinders located at the two ends of the third beam and two positioning pins connected with piston rods of the two positioning air cylinders correspondingly. According to the structure, the jacking mechanism is stable in operation, vertical space is saved, push force far larger than air cylinder force can be output, falling is prevented, the floating mechanism can ensure horizontal suspension of the tray, the positioning mechanism is high in positioning precision, and noise is low.

The invention relates to a foldable electric pedal for a vehicle. The foldable electric pedal comprises a mounting bracket, a speed reducing motor, a chain wheel transmission mechanism, a main shaft,a connecting rod mechanism and a primary pedal assembly. The mounting bracket is used for fixedly connecting an electric pedal with a vehicle; the speed reducing motor is fixedly connected to the mounting bracket and connected with the input terminal of the chain wheel transmission mechanism through an output shaft. The chain wheel transmission mechanism is fixedly connected to one side of the mounting bracket; one end of the main shaft is connected with the output terminal of the chain wheel transmission mechanism and the other end is in rotation connection with the mounting bracket; and themain shaft drives the primary pedal assembly to rotate in the circumferential direction. One end of the connecting rod mechanism is hinged to the mounting bracket, and the other end can swing along with rotation of the primary pedal assembly. The foldable electric pedal adopts a rotary folding structure, and is compact in structure and stable in transmission; compared with a traditional pedal having a horizontal folding structure, the provided foldable electric pedal enables the longitudinal space to be saved.

The invention belongs to the field of elevators, and discloses an elevator machine room arranging structure and an elevator system. A traction machine and a counterweight diversion sheave are both arranged on the upper end face of a machine bearing beam, the arranging structure is compact, the vertical space occupied when the counterweight diversion sheave is independently arranged is saved, a counterweight guiding wheel is connected with the machine bearing beam and located under the traction machine, a central shaft of the counterweight guiding wheel is perpendicular to a central shaft of the counterweight diversion sheave, therefore, the rope winding mode is compact, a steel wire rope is wound on the traction machine, the counterweight guiding wheel and the counterweight diversion sheave, and interference in the rope winding process of the steel wire rope can be avoided through the arranging mode. The elevator system adopts the elevator machine room arranging structure, the arranging structure is compact, the space, occupied by a machine room, of a shaftway in the depth direction can be reduced, and the elevator system can be suitable for machine rooms with different depth sizes.

The invention provides a fingerprint identification chip and a manufacturing method therefor. The fingerprint identification chip comprises a substrate, a wafer arranged on the substrate, a sensing unit integrated on a first surface of the wafer, and a conductive layer, wherein a groove is formed in the edge of the wafer; the bottom of the groove is lower than the first surface of the wafer in a vertical direction; the sensing unit is connected with the substrate in a binding manner through a binding line; and one end of the conductive layer is connected with the sensing unit, and the other end of the conductive layer extends to the bottom of the groove. The groove structure is formed in the edge of the wafer, and one end, connected with the sensing unit, of the binding line is pulled down through the conductive layer arranged on the groove wall of the groove, so that the distance from the sensing unit to the top end of the fingerprint identification chip is reduced, the distance between the sensing unit and a finger of a user is shortened, and the sensitivity of the fingerprint identification chip is improved.

The invention discloses a transversely-arranged shared shopping bag intelligent cabinet and a using method thereof. The transversely-arranged shared shopping bag intelligent cabinet comprises a cabinet body, a cabinet door, an identity recognition module, an electric control box module, a display screen, an FRID read-write module and an RFID antenna; a bottom plate and a layering plate are arranged in the cabinet body, incline backwards and downwards by a certain angle from the side of the cabinet door, and are used for containing shared shopping bags, and the transverse length of the cabinetbody is larger than the longitudinal width of the cabinet body; the cabinet door is hinged to the front side of the cabinet body; the identity recognition module is used for collecting personal information of a user and determining the identity of the user; the electric control box module is arranged on the cabinet body and is used for controlling the transversely-arranged shared shopping bag intelligent cabinet; the display screen is arranged in the upper part of the cabinet door and is used for displaying visual information; and the FRID read-write module is arranged on the cabinet body andis electrically connected with the electric control box module, information of the shared shopping bag in the cabinet body is read through the RFID antenna, and the RFID antenna is arranged in the cabinet body. Through storage and intelligent management of the shared shopping bags, operations of borrowing, returning, adding, recycling and the like of the shared shopping bags are realized.

The invention discloses a halved belt sorting trolley with a liftable conveying surface, a halved belt sorting system and a sorting method thereof. The sorting trolley comprises a chassis, wherein a storage box is arranged on the chassis; a first chain and a second chain which are opposite are rolled in the storage box; the first chain and the second chain are driven by a motor to extend and retract; mutually separated parts of the first chain and the second chain are flexible; mutually engaged parts of the first chain and the second chain define a rigid rod body; the rigid rod body extends tothe outer part of the storage box, and is connected to the bottom of a conveyor; and the conveyor is arranged on a limiting mechanism. The halved belt sorting trolley adopts a special chain, can realize switching needs of a conveying surface of the conveyor at different heights by regulating length of the rigid rod body extending to the outside of the storage box, and creates beneficial conditions for multi-layer grid hole sorting, so that occupied longitudinal space can be effectively reduced by rolling the chains into the storage box under a normal state; and meanwhile, lifting height of the halved belt sorting trolley can be reasonably regulated according to different application occasions.

The invention relates to an integrated crushing buffer device, which is arranged between a coupler coupling system and a mounting and hanging system of a coupler draft device and comprises a buffer and a crushing pipe, wherein a shell of the buffer is sleeved in the crushing pipe. The integrated crushing buffer device has a simple and reliable structure; the buffer is sleeved in the crushing pipe; a parallel arrangement mode of the buffer and the crushing pipe is adopted; the longitudinal space is saved; and both the buffer and the crushing pipe have larger ranges, i.e., higher energy absorbing capacity, without increasing the length of the coupler.

A chair for facilitating efficient stacking includes a seat element having a seat frame, a plurality of front legs attached to a front portion of the seat element, a plurality of rear legs attached to a back portion of the seat element, and one or more telescopic leg mechanisms disposed on at least one of the front or rear legs, wherein the telescopic leg mechanisms provide for lateral movement of the at least one of the front or rear legs with respect to the seat element.

The invention discloses a small-wheelbase compact permanent magnet motor axle-hugging mounting type direct-drive bogie, including a pair of frame devices, wherein an axle is arranged between the framedevices; a permanent magnet synchronous traction motor is installed at the middle of the axle; a wheelset axle box device is arranged on the axle, close to the frame devices; a connecting cross beamis also arranged between the two frame devices; a double traction rod device is arranged on the connecting cross beam; the upper surface of the double traction rod device is provided with a mounting plate; and the mounting plate is fixedly connected with a rail vehicle. Compared with the prior art, the small-wheelbase compact permanent magnet motor axle-hugging mounting type direct-drive bogie hasthe advantages of simple structure, high transmission efficiency, small curve passing performance of the bogie, wheel rim wear of the curve wheel, remarkably improved energy saving performance and the like.

The invention discloses a continuous girder with rigid structure of a portal pier, which belongs to the technical field of bridges. It comprises a rigid frame continuous beam (1) and a portal pier cap beam (2) arranged at the lower part of the rigid frame continuous beam (1), and is characterized in that: At the junction of (2), the rigid frame continuous beam (1) is embedded in the portal pier cap beam (2). The invention can reduce the vertical space occupied by the cover beam and the continuous rigid structure, ensure the limit requirement of the railway, ensure the safety of driving, reduce the consumption of concrete and steel bars, and save the cost.

The invention relates to the technical field of printing equipment, in particular to a large-space 3D printing machine based on a light mechanical arm. The printing machine comprises a supporting frame, the supporting frame is provided with an X-axis cross beam, a Y-axis cross beam capable of sliding in the length direction of the X-axis cross beam is arranged on the X-axis cross beam, a Z-axis cross beam sliding in the length direction of the Y-axis cross beam is arranged on the Y-axis cross beam, the Z-axis cross beam is connected with a three-freedom-degree mechanical arm and a steel rope-spring traction device through a Z-axis vertical beam, and the three-freedom-degree mechanical arm and the steel rope-spring traction device. Due to the structure, Z-axis direction control of the 3D printing machine is achieved through the mechanical arm, spaced occupied in the Z-axis direction is small, large-space printing is achieved, the weight of the mechanical arm is reduced, the motor running power is reduced, and cost is saved.

The invention discloses a negative ion generation device. The negative ion generation device comprises a negative ion generator and is characterized by further comprising a humidifying device for humidifying the air passing through; the negative ion generator comprises a negative ion ball; and in the flowing route of gas, the humidifying device is positioned at the upstream of the negative ion generator. The invention further discloses a filtering device using the negative ion generation device. A negative ion ball material without pollution and energy consumption is adopted, and negative ionswith the target concentration can be obtained without supplying power to the device, so energy saving and environmental friendliness are achieved, and negative ions for binding with microparticles and beneficial to body health can be provided; and by a humidifier method, local humidity is improved, the negative ion ball can be excited to generate negative ions, and high-concentration negative ions are bound with the microparticles in the air to form particles with large particle size.

The invention relates to the related technical field of computer heat dissipation, and discloses a computer heat dissipation cooling system which comprises a case, the case is provided with an inner concave part, a mainboard carrying device is installed in the case, the mainboard carrying device comprises a mainboard installation plate, the mainboard installation plate is provided with a protruding plane part, and the protruding plane part is connected with the mainboard installation plate. Hollow heat dissipation grooves are formed in the convex plane part in an array mode, heat conduction metal blocks are arranged on the convex plane part in an array mode, functional heat dissipation grooves are formed in the inner side of the convex plane part, and the convex plane part penetrates through the mainboard mounting plate; according to the computer heat dissipation and cooling system, through the arrangement of efficient heat dissipation and cooling functions and the arrangement of the protruding plane parts and the functional heat dissipation groove internal structures, a certain space can be formed in the erecting position of the mainboard relative to the inner wall of the computer case, and therefore the air flowing efficiency of the peripheral side of the mainboard can be greatly improved; and the heat conduction metal block can be attached to the mainboard for heat conduction, so that solid conduction heat dissipation of the temperature of the mainboard is realized.