145results about How to "Support structure is stable" patented technology

The present invention belongs to the technical field of tunnel construction, and specifically relates to a shield-type cyclic pre-support shield equipment for soft soil surrounding rock tunnels, equipment body; support ring, which includes a support shell for supporting the tunnel and an inner cross brace and a frame for reinforcing the support shell, and the two end faces of the support shell are fixedly embedded with an extended connecting plate for splicing the head and the tail; a jacking system, which is used to push the equipment body and the support ring into the tunnel; wherein a clamping system for splicing each other is provided between the equipment body and the support ring and between the two end faces of the support ring, and adjacent support rings are spliced ​​by the clamping system to gradually increase the support length through a segmented structure. The present invention can simultaneously support during the process of tunnel excavation and continuously extend the support length in a cycle, improve work efficiency, and reduce engineering workload. It is a technical measure and equipment that integrates simplicity, high efficiency, and environmental protection.

The invention relates to the technical field of wide-body vehicles, and provides a wide-body vehicle frame and a wide-body vehicle, the wide-body vehicle frame comprises a longitudinal beam, a lower ring beam, a lifting cross beam, a middle cross beam, a longitudinal pull rod cross beam and a tail cross beam, and the lower ring beam, the lifting cross beam, the middle cross beam, the longitudinal pull rod cross beam and the tail cross beam are sequentially arranged along the longitudinal beam at intervals; through the structural arrangement, the whole frame is connected into a firm and reliable integrated structure, and parts, mainly generating impact and stress, such as a front suspension system, a middle suspension system, a rear suspension system, a container lifting system and a longitudinal pull rod of the wide-body vehicle are reliably and stably mounted and supported; according to the wide-body vehicle frame, stress deformation, cracking and other unstable conditions of the frame are prevented, the overall stability and reliability are further improved by further improving the main stress structure, and then the service life of the wide-body vehicle frame is prolonged.

The invention discloses O-shaped ring whole mold full-inspection equipment and a detection method thereof. The O-shaped ring whole mold full-inspection equipment comprises a detection table; the mounting table is fixedly mounted at the top of the detection table; the translation turnover mechanism is fixedly connected to the top of the detection table; the fixing tool is fixedly mounted in the translation turnover mechanism; the detection mechanism is located at the top of the fixing tool, and the top of the detection mechanism is fixedly connected with the bottom of the mounting table; and the positioning mechanism is located at the bottom of the fixing tool, and the bottom of the positioning mechanism is fixedly connected with the top of the detection table. The invention aims to solve the technical problems that when the existing O-shaped ring detection equipment is used for detecting the surface defects of the O-shaped ring, the O-shaped ring and a die of the O-shaped ring are inconvenient to automatically turn over and discharge, and manual work is needed to participate in turning and discharging operation, so that the labor cost is increased, and the detection efficiency of the surface defects of the O-shaped ring is reduced.

The invention relates to a smoke purifier, and belongs to the field of purification. A smoke dust purifier comprises a shell assembly, and the shell assembly is provided with an air inlet, a containing cavity, an air draft cavity and an air outlet; the filtering assembly is arranged on the shell assembly and located in the containing cavity, and the filtering assembly is provided with a filtering air inlet and a filtering cavity; the air inlet assembly is arranged on the shell assembly, the air inlet assembly is provided with an air inlet channel, and the air inlet channel, the air inlet, the filtering air inlet, the filtering cavity, the air draft cavity and the air outlet are sequentially communicated; the fan assembly is arranged on the shell assembly and located in the air draft cavity; the display assembly is arranged on the shell assembly; the electric control assembly is arranged on the shell assembly, and the electric control assembly is electrically connected with the filtering assembly and the display assembly. The invention discloses a smoke dust purifier which is used for absorbing fine smoke dust generated in a working environment and reducing the risk that workers are exposed in a harmful dust environment.

The invention relates to the field of material sampling and testing, in particular to a drilling and coring device for bridge pile foundation detection and a control method of the drilling and coring device. An infrared distance meter is mounted on a vertical rod of a sliding block on an annular guide rail on the base; the sampling barrel penetrates through the sleeve, the bottom end of the sleeve is connected with the base, a hydraulic cylinder of the hydraulic equipment is hinged to the base, a blocking piece hinged to the top end of a piston rod of the hydraulic equipment abuts against the top end of the sleeve, an annular groove is formed in the outer wall of the top end of the sleeve, and a pressure sensor is installed between the blocking piece and the annular groove. A processor is mounted in a box body on the base; in the drilling and coring process, the sliding block moves along the annular guide rail, the processor collects data output by the infrared distance meter and the pressure sensor and obtains the deviation direction and the deviation angle of the sampling barrel, and the pressure of the hydraulic equipment is adjusted according to the deviation direction and the deviation angle. The problem that the sampling barrel cannot automatically rectify deviation in real time when the solid material to be analyzed is sampled, drilled and cut is solved.

The utility model provides a height-adjustable reciprocating pillow type packaging machine which comprises a packaging machine body, a supporting base frame, a finished product output line, a hot pressing sealing machine, a bag making supporting structure, upper packaging film paper and lower packaging film paper. The finished product output line is fixedly installed at the rear end of the surface of the packaging machine body, and the hot-press sealing machine is fixedly installed on the surface of the packaging machine body. The bag making supporting structure is fixedly installed behind the supporting base frame, the upper packaging film paper is rotationally installed on the top of the bag making supporting structure, and the lower packaging film paper is located above the supporting base frame. Due to the arrangement of the supporting base frame and the bag making supporting structure, the height can be adjusted, the bag making machine can be suitable for products of various sizes, and the size adjusting range is large.

The utility model provides a steel sheet pile and cement mixing pile combined supporting structure which comprises a first steel sheet pile body, a second steel sheet pile body and a cement mixing pile. The first steel sheet pile body and the second steel sheet pile body are alternately connected in a clamped mode, the cement mixing pile comprises a positioning sleeve and a cement pile body, the positioning sleeve is fixed to the first steel sheet pile body and / or the second steel sheet pile body, the upper end of the cement pile body is flush with the first steel sheet pile body and the second steel sheet pile body, and the lower end of the cement pile body extends out of the bottoms of the first steel sheet pile body and the second steel sheet pile body. The positioning sleeves are arranged on the first steel sheet pile body and / or the second steel sheet pile body to form the cement pile body, so that the stability and the firmness of a steel sheet pile body supporting structure in the prior art are improved; the operation difficulty is effectively reduced, the workload is reduced, the working efficiency is improved, and the construction quality is ensured; the whole supporting structure is stable, and the reliability is higher.

The invention discloses a robot for culturing paenibacillus angularis, and relates to the technical field of manipulators, the robot comprises a base, and a robot arm frame main body is fixedly mounted at the top of the base; three-point clamping of the culture dish is achieved through the clamping jaw with the bottom ends located on the same inclined plane, the first arc-shaped plate and the second arc-shaped plate, three clamping points are arranged at the same vertical position of the outer wall of the culture dish, clamping force can be effectively dispersed, instability or damage caused by too large stress of a single clamping point is avoided, and the service life of the culture dish is prolonged. According to the design, force borne by each clamping point is more uniform, so that the overall clamping stability is improved, the bottom ends of the first arc-shaped plate and the second arc-shaped plate or only the bottom end of the second arc-shaped plate can make contact with the outer wall of the bottom of the culture dish subsequently, the bottom of the culture dish is supported, and therefore stable clamping of the culture dish is achieved; and the situation that the manipulator is abraded due to long-term use and cannot be tightly attached to the culture dish, so that the culture dish falls off when being transferred is prevented.

The utility model discloses a kind of steel pipe pile supporting structures, mainly include side slope, concrete layer, two pipe pile row groups and protective layer, the water surface of side slope and backwater surface are supported and reinforced by pipe pile row group, and prevent direct impact of water flow, simultaneously, by protective structure and concrete layer on the bottom and both sides waist surface of side slope are covered and protected, further improve the stability of side slope structure, and prevent soil layer from being impacted by water flow, thereby the overall of supporting structure is relatively stable, not easy to be affected by water flow, and the laying equipment of steel pipe pile is relatively mature, operation is relatively simple, without more artificial simultaneously, to improve the efficiency of construction.

The invention provides a gypsum board specification changing middle saw synchronous positioning device, and relates to the technical field of gypsum plaster boards, the gypsum board specification changing middle saw synchronous positioning device comprises a supporting part, a conveying part, an adjusting part, a cutting part, a detection part and a control part, and the control part is in electrical signal connection with the conveying part, the adjusting part, the cutting part and the detection part. The positioning device is arranged, and through the positioning and adjusting effects of the positioning device, the problems that in the background technology, in the gypsum board production process, in order to meet the market product requirement, the specification and size of a product need to be continuously replaced, and traditional equipment needs to be manually adjusted and positioned; the working efficiency is low; and positioning deviation exists.

The application relates to a fireproof partition type ventilation window and relates to the technical field of ventilation equipment. The ventilation window comprises a ventilation opening arranged on a target device, a ventilation cover is arranged on the ventilation opening, the ventilation cover is provided with a plurality of ventilation holes, fireproof intumescent paint is coated on the ventilation cover, and the fireproof intumescent paint expands to block the ventilation holes when the temperature reaches a preset value. The application can prevent the spread of fire and smoke through the ventilation opening, guarantee the safety inside the target device, and further reduce fire loss.

The utility model relates to cell culture tool technical field especially, more particularly to an array formula multi -hole separation cell culture dish. The utility model provides an array formula multi -hole separation cell culture dish, solves the technical problem that cell culture dish in prior art can only culture same kind of cell under same environment. An array formula multi -hole separation cell culture dish, including frame, culture cavity, culture cavity set up in frame, and mark, mark set up in frame, and, every mark corresponds an independent culture cavity, array formula multi -hole separation cell culture dish sets up a plurality of independent culture cavities, and every culture cavity can be regarded as an independent'small culture dish'. This makes under same frame, to same kind of microorganism in different nutrient solution, medicine or other environmental conditions can carry out culture experiment simultaneously.

The utility model relates to the technical field of bridge construction, and discloses a crossing movable platform attached to a high-altitude bridge, which comprises a space structure body, the top end of the space structure body is fixedly connected with the bottom surface of the bridge, and the space structure body comprises a plurality of polygonal annular frames; each polygonal annular frame comprises a polygonal bottom frame and vertical supporting frames distributed in the circumferential direction of the bottom frame. The multiple polygonal annular frames are sequentially arranged in the length direction of the bridge. The anti-falling net is arranged on the bottom surface and the circumferential direction of the space structure body in a tensioning manner; the climbing entertainment device is located in the space structure body and attached to the space structure body; the corners of the bottom frames of every two adjacent polygonal annular frames are aligned at the top points and connected through circumferential dampers used for consuming horizontal vibration, and metal dampers used for consuming vertical vibration are arranged between the top of the space structure body and the bridge. The technical problems that an ultra-long movable platform attached to a high-altitude bridge is greatly influenced by wind shock, and the sense of safety of tourists is low are solved.

The utility model belongs to the technical field of automobile brake systems, and particularly relates to a light-weight automobile brake disc. The outer side of the disc body is provided with an arc-shaped groove and embedded radiating fins, and the groove is filled with a heat-conducting silica gel layer; a mounting hole is formed in the center of the disc body, honeycomb lightening holes are formed around the disc body, and a tungsten carbide coating is sprayed on the inner wall; a first reinforcing rib and a second reinforcing rib are arranged on the two sides of the disc body and are welded and fixed through a connecting plate. The disc body is made of an aluminum alloy base material, the surface of the disc body is subjected to anodic oxidation and graphene coating treatment, and the disc body has both light weight and corrosion resistance. By optimizing the structural design, the weight is remarkably reduced while the strength is guaranteed, the heat dissipation performance is improved, and the automobile brake pad is suitable for a high-performance vehicle brake system and meets the requirements of modern automobiles for light weight and efficient heat dissipation.

This invention discloses a pipe roof support structure for reducing surrounding soil displacement, comprising a pipe, rails, and a worm gear. Two or more rails are arranged on the inner wall of the pipe, and each rail is equipped with two or more power switching mechanisms. The first end of the worm gear is fixedly connected to a support plate via a bearing seat, and the second end of the worm gear is fixedly connected to a base via a bearing seat. A fixed support plate is fixedly connected to the middle of the worm gear near the first end via a bearing. An impeller is coaxially fixedly connected between the worm gear and the fixed support plate. The base is slidably connected to the rails, and the support plate and fixed support plate are slidably connected to the rails. This invention provides power through the rotation of the impeller. The cooperation of the power switching mechanism and the guiding and reinforcing mechanism allows cement grout to flow into the soil around the pipe with a relatively small grouting pressure, making the soil around the pipe more stable.

The utility model discloses a fire-fighting smoke exhaust window capable of being opened by 70 degrees, and relates to the technical field of fire-fighting smoke exhaust windows. The aluminum alloy window comprises a latticed structure formed by aluminum alloy cross beams and aluminum alloy stand columns, and a plurality of opening windows are fixedly connected into grids formed by the aluminum alloy cross beams and the aluminum alloy stand columns. A plurality of steel pipes are fixedly connected to the intersection points of the aluminum alloy cross beams and the aluminum alloy stand columns in an inserted mode, a plurality of fixed windows are connected between the steel pipes through hardware, and a flat curtain wall is formed. The use of the aluminum alloy decorative pressing plate not only enhances the aesthetic degree of the curtain wall, but also provides a good protection effect, the arrangement of the opening window and the fixed window meets the requirements of ventilation, lighting and visual field of the curtain wall, the opening window can be produced in a pre-assembly mode and can be quickly mounted after arriving at the site, and the production cost is reduced. And a user can conveniently ventilate in the use process.

The utility model discloses engineering machinery multiway valve body accessories relates to multiway valve technical field, including main valve body, the both sides of main valve body are provided with a plurality of oil inlet and oil outlet, the oil inlet and oil outlet outside all are fixedly connected with helical line shunt passage, the inner chamber of helical line shunt passage is towards the oil inlet one side and is opened with the liquid inlet tapering runner, when oil liquid is in through oil inlet and oil outlet send, all first pass through helical line shunt passage, and the oil liquid of passing through helical line shunt passage first pass through liquid inlet tapering runner, effectively reduced the impact force of oil liquid, improved the stability of oil liquid. Oil liquid continues to flow in helical line shunt passage, gradually enters the export diffusion chamber, and the design of export diffusion chamber makes oil liquid can diffuse steadily when flowing out, then is sent into main valve body and is sent into oil equipment, further reduces the turbulent flow and energy loss of oil liquid.

The application relates to a blanking machine for cable sheaths, and belongs to the technical field of cable sheath processing, which comprises a base, a connecting seat arranged on the base, a stamping assembly arranged on the connecting seat and a forming die placed on the top surface of the base, a stamping end of the stamping assembly is located above the forming die to stamp the forming die. The application has the effect that efficient stamping operation of the cable sheath can be realized, thereby meeting the quality detection requirement.

The utility model relates to the technical field of coal mining and processing equipment, and discloses a gap adjusting assembly for a coal cinder crusher lining plate, which comprises a coal cinder crusher and a lining plate adjusting assembly. According to the gap adjusting assembly for the lining plate of the coal cinder crusher, the gap of the lining plate is finely adjusted through the lining plate adjusting assembly. A motor is used as a power source to drive one of the rotating rods to rotate. And the two rotating rods are in threaded connection with the positions, close to the two sides, of the top of the lining plate correspondingly, so that the lining plate can be driven to move through rotation of the rotating rods, and gap adjustment is achieved. And the other ends of the two rotating rods are also rotationally connected with the top baffle, so that a stable supporting structure is formed. Meanwhile, in order to achieve synchronous rotation of the two rotating rods, the lining plate adjusting assembly further adopts the design of a rotating wheel and a rotating belt. Through the six rotating wheels and the three rotating belts, when one rotating rod is driven by the motor to rotate, the other rotating rod can rotate synchronously through transmission of the rotating wheels and the rotating belts.

The utility model discloses a steel sheet bin discharging device, including the fixing frame, be provided with the discharge component on the fixing frame, the discharge component includes the bin body and the feed tank, the bin body sets up the fixing frame, the feed tank sets up at the bin body bottom, install and be equipped with the second motor on the feed tank, the output of motor is connected and is equipped with the transmission assembly, be provided with the shielding component on the feed tank, the shielding component includes the fixed plate and the hinged seat, the fixed plate installs one end at the feed tank, install on the fixed plate on the hinged seat, the hinged seat is equipped with the cylinder on the hinged installation, to solve the background art mentioned in the prior art field, the steel sheet bin discharging device has the obvious function defect and the technical problem of low efficiency in material conveying link.

The utility model relates to a drill rod conveying trolley for calcium carbide production, and belongs to the technical field of conveying equipment. The drill rod transporting vehicle comprises a vehicle frame, a moving wheel assembly and a handrail, the top of the vehicle frame is connected with a drill rod containing groove body used for containing a drill rod, the drill rod containing groove body extends in the front-back direction, and the front end and the rear end of the drill rod containing groove body are open; the moving wheel assembly is connected to the bottom of the frame, and the moving wheel assembly is correspondingly located below the middle position of the drill rod containing groove body; the handrail is connected to the end part of the drill rod accommodating groove body; a mounting plate is connected to the top of the frame, a connecting plate is connected to the bottom of the drill rod containing groove body, and the connecting plate is fixedly connected to the mounting plate through connecting bolts so that the drill rod containing groove body can be fixedly connected to the frame. The drill rod conveying device can effectively improve the carrying efficiency of drill rods, and the conveying process is more reliable.

The utility model relates to the technical field of storage cabinets, in particular to an automatic safety guard medical consumables storage cabinet which comprises a supporting column, storage cabinets and drawers, the storage cabinets are installed above the supporting column, the drawers are installed between the storage cabinets, the drawers drive rotating rods to rotate through rotating idler wheels, and the rotating rods are connected with the supporting column. The rotating rod drives the adjusting rod to vertically move, the vertically moving adjusting rod pushes the placing plate to horizontally move, meanwhile, the rotating roller rotates to drive the conveying belt to move, the moving conveying belt drives the sliding plate to vertically move, and the vertically moving sliding plate drives the lifting plate to vertically move, so that the lifting plate is horizontally aligned with the placing plate.

The utility model discloses a combined type multifunctional pipette rack, which belongs to the field of experimental instruments and comprises a pipette rack top plate, a supporting ridge plate, a supporting bottom plate and a liquid collecting tank, and a plurality of pipette position holes and ear washing bulb position holes are respectively arranged in rows on the pipette rack top plate along the length direction of the pipette rack top plate. A plurality of first positioning clamping grooves are formed in the pipe frame top plate at equal intervals in the length direction of the pipe frame top plate. A plurality of clamping strips are arranged at the top end of the supporting ridge plate in the length direction, and inserting long holes are formed in the lower portion of the surface of the supporting ridge plate; the supporting bottom plate comprises a supporting plate and a supporting back plate fixedly connected to the back side of the supporting plate, and the supporting back plate can be correspondingly inserted into the inserting long holes to the back side of the supporting ridge plate to form a supporting structure; a plurality of pipette clamping holes corresponding to the pipette position holes are formed in the supporting plate in the length direction of the supporting plate; the liquid collecting tank is correspondingly connected to the lower side of the supporting plate and is used for collecting dripping waste liquid of the pipette. According to the utility model, the pipette and the ear washing bulb are convenient to place, are convenient to disassemble and assemble, and meet the requirements of storage or cleaning.

The invention relates to the field of mechanical automatic assembly, in particular to a fin feeding machine. The fin feeding machine comprises a feeding mechanism, a conveying mechanism, a fin discharging mechanism, an assembling mechanism and a carrying mechanism, the feeding mechanism is used for conveying fin materials, the conveying mechanism receives the fin materials and continues to convey the fin materials, and the fin discharging mechanism clamps the fin materials and presses the fin materials down to fall into the assembling mechanism; the assembling mechanism assembles fin materials and flat tube materials at intervals, and the carrying mechanism enables the equipment to automatically carry the flat tube materials or assembled finished products to a target position. According to the fin assembling device, the fin feeding efficiency and the quality of assembled products can be improved, and meanwhile the assembling requirements of fins and flat pipes of different specifications can be met.

The utility model discloses a novel pet car which comprises a car frame, the car frame comprises a folding box, a folding rotating assembly, a hand push rod, two rear wheel supports and two front wheel supports, the folding rotating assembly is located in the folding box, and the top ends of the rear wheel supports, the top ends of the front wheel supports and the bottom end of the hand push rod are all connected with the folding assembly; the hand push rod can stretch out and draw back and unlock the folding rotating assembly, and the rear wheel support and the front wheel support rotate and draw close to each other. The pet basket comprises an upper surrounding frame, a lower surrounding frame, a supporting frame, a bottom plate and surrounding cloth, the two ends of the supporting frame are hinged between the upper surrounding frame and the lower surrounding frame respectively, the bottom plate is installed on the inner side of the lower surrounding frame, and the surrounding cloth is connected between the upper surrounding frame and the lower surrounding frame; and the bottom plate is detachably mounted above the folding box. The pet basket has the advantages that folding operation steps are simplified, carrying and storage are convenient, and the pet basket is convenient to detach and clean.

This utility model relates to a road pile support structure adjacent to multiple high-voltage power towers. It includes a first retaining wall installed on one side of the road adjacent to the multiple high-voltage power towers and located at the road edge line between the tops of the road cutting slopes at both ends. Second retaining walls are respectively installed within the first retaining wall between two adjacent high-voltage power towers and on the side of the road cutting slope near both ends. Crown beams are installed at the top of both the first and second retaining walls. Tie beams are respectively installed between the second retaining wall between two adjacent high-voltage power towers and the first retaining walls located on both sides of the second retaining wall. Tie beams are also installed between the second retaining wall on the side of the road cutting slope near both ends and the first retaining wall. This utility model, by setting up the first and second retaining walls and coordinating with tie beams to form a combined support system, is easy to operate, highly safe, and economical, ensuring the safety of the power towers and surrounding areas.

This utility model provides an LED display module mask, including a mask body, which comprises two sets of first mask plates and a second mask plate. The second mask plate is located between the two sets of first mask plates, and multiple sets of connecting ribs are provided between the second mask plate and the two sets of first mask plates. The second mask plate is integrally formed with the two sets of first mask plates through the multiple sets of connecting ribs. Multiple sets of lamp holes are provided on the first mask plate, the second mask plate, and the connecting ribs. Multiple sets of buckles are provided on the top surface of the connecting ribs. This LED display module mask has a reasonable structural design, which can effectively protect the LED module. Its integrated mask body can resist the intrusion of external impurities, the lamp holes ensure the orderly arrangement of LED beads to optimize the display effect, and the buckles on the connecting ribs facilitate a secure connection with other components. In addition, the mask's good heat dissipation design can dissipate heat in time, ensuring the stable operation of the LED module and greatly improving the practicality and reliability of the product.

The utility model discloses a zinc-magnesium alloy profile forming device, and relates to the technical field of profile forming. The device comprises a feeding mechanism, one side of the feeding mechanism is fixedly connected with a forming device, one side of the forming device is fixedly connected with a guide rail, the guide rail is connected with a first conveying mechanism in a sliding mode, the first conveying mechanism comprises a sliding plate, and one side of the top of the sliding plate is fixedly connected with a supporting table; the cutting device comprises a supporting table, a rotating column is arranged on one side of the supporting table, a first cutting table is fixedly connected to one side of the rotating column, and a first lifting table is connected to the top of the first cutting table through an electric push rod. And meanwhile, a motor drives a baffle to achieve automatic transposition storage of the profiles, the automation degree of the production process is improved, and in addition, due to cooperative work of a rotating column and the motor, transposition storage of the profiles is more accurate and efficient.

The utility model discloses a lithium battery with a high-strength protective shell in the field of lithium batteries, which comprises a protective shell, a battery module and a master control circuit board, the battery module is arranged in the protective shell, the master control circuit board is arranged in the protective shell, the battery module is electrically connected with the master control circuit board, an anti-collision plate is arranged on the top surface of the protective shell, and the master control circuit board is electrically connected with the anti-collision plate. A plurality of fixing plates are fixedly arranged on the side face of the protective shell, the fixing plates extend in the length direction of the protective shell, and a plurality of square aluminum frames are fixedly arranged on the surfaces of the fixing plates; according to the lithium battery with the high-strength protective shell, the anti-collision plate arranged on the top surface of the protective shell can effectively resist impact from the top and protect the internal battery module and the main control circuit board from being damaged, and the structural strength of the protective shell is enhanced by the plurality of fixed plates fixed on the side surface and the square-shaped aluminum frame on the fixed plates; therefore, the lithium battery can better keep integrity when being subjected to side impact, and the anti-collision performance is high.

The utility model discloses a vehicle-loaded road air purification device and an air purification vehicle based on the vehicle-loaded road air purification device, the air purification device is installed at the bottom of the vehicle and comprises a purification box, one end of the purification box is provided with an air inlet system, and the other end of the purification box is provided with an air outlet system; the purification box and a chassis of the vehicle are detachably arranged; the air inlet system is arranged close to an air inlet grille of the vehicle; the air inlet system comprises a first air inlet assembly communicating with the purifying box and two second air inlet assemblies symmetrically arranged on the two sides of the first air inlet assembly. The first air inlet assembly is further provided with an air inlet grid in a communicating mode, and the two ends of the air inlet grid abut against the second air inlet assembly. According to the gas inlet system, a wide and efficient gas inlet area is formed through the synergistic effect of the first gas inlet assembly, the second gas inlet assembly and the gas inlet grid, the capture and enrichment requirements of pollution gas are fully considered in the design of the gas inlet system, and the gas enrichment efficiency is high.