666results about How to "Eliminate gaps" patented technology

The invention relates to the technical field of bolt mounting equipment, in particular to an angle steel tower bolt perforation mounting method. By means of autonomous navigation of the installation robot and flexible operation of the mechanical arm, rapid positioning and taking-out of bolts and nuts are achieved, and the risk of manual climbing and operation is reduced. Accurate insertion and preliminary positioning of the bolt are ensured through accurate control of the mechanical arm, then the fastening effect is enhanced by combining impact tightening with the intermittent hammering technology, the fit clearance between the angle steel is effectively eliminated, and the bolt is prevented from loosening. The whole process is highly automatic, personal errors are reduced, and the mounting quality and the working safety are improved.

The invention discloses a high-precision three-degree-of-freedom attitude adjustment platform for a spectrometer, which is based on a simplified design of a Stewart platform and comprises a movable platform, a static platform and a three-degree-of-freedom driving mechanism connected between the movable platform and the static platform. The driving mechanism is composed of three sets of servo electric cylinders, telescopic rods and servo motors and is driven by a ball screw, and posture adjustment of the platform is achieved. According to the platform, a laser interferometer is adopted as a high-precision sensor, a closed-loop feedback control system is combined, and submicron displacement measurement and attitude control are achieved. The platform can achieve translation in the Z-axis direction and rotation around the X axis and the Y axis, the rotation angle can reach + / -15 degrees, and the precision can reach 0.02 mm. According to the invention, the device ensures high precision and stability in a complex working environment, has the characteristics of stable movement, quick response, easy maintenance and the like, and is suitable for the fields of optical experiments, spectral analysis and attitude adjustment and error compensation of precise instruments.

The invention relates to the technical field of bolt mounting equipment, in particular to an angle steel tower bolt perforation mounting tool, fastening equipment and a mounting robot. The hammering part is responsible for hammering the head of the bolt in the nut tightening process so that the head of the bolt can be attached to angle steel more tightly; and then the nut is gradually fastened on the bolt in an impact tightening manner by matching with the tightening part. The tightening part continuously rotates the nut to apply pre-tightening force, the hammering part hammers the head of the bolt in time, the tightening part and the hammering part jointly act to gradually reduce the fit clearance between the angle steel, so that the effect of fastening the angle steel through the bolt is achieved, and the stability of bolt connection is effectively improved.

The invention relates to a gas nano purifier. The gas nano purifier comprises a mounting seat, the gas storage bin is installed on the installation base and used for storing clean gas, the side wall of the upper portion of the gas storage bin extends upwards to form an installation plate, and a gas path through hole is formed in the middle of the installation plate; the gas-water separator is mounted on the mounting plate and is used for carrying out primary purification on to-be-cleaned gas; the adsorption tower is mounted on the mounting plate and is used for carrying out secondary purification on the to-be-cleaned gas; gas to be cleaned sequentially flows through the gas-water separator and the adsorption tower and then enters the gas storage bin; the adsorption tower is communicated with the gas storage bin through an exhaust pipe; and the exhaust pipe penetrates through the gas path through hole. Through the arrangement, the installation operation is greatly simplified, and the integrity and the space utilization rate of equipment are improved.

The utility model discloses cigarette packaging paper. The cigarette packaging paper comprises an inner part, an outer part, a release layer (105) and an adhesive sticker layer (106), wherein the release layer (105) and the adhesive sticker layer (106) are arranged between the inner part and the outer part; the outer part sequentially comprises an outer PE (polyethylene) lamination layer (101), an outer paper layer (102), an outer composite adhesive layer (103) and an outer PET (polyethylene terephthalate) layer (104); the inner part sequentially comprises an inner PET layer (107), an inner composite adhesive layer (108), an inner paper layer (109) and an inner PE lamination layer (110); the release layer (105) is close to the outer PET layer (104), and the adhesive sticker layer (106) is close to the inner PET layer (107). According to the utility model, the outer PE lamination layer and the inner PE lamination layer are respectively laminated on the outermost layer and the innermost layer of the packaging paper to form the double-sided laminated paper, so that the leakproofness and the barrier property of the paper are effectively improved. The pressure relief device is arranged at the bottom of the packaging box, so that the problem that the whole packaging box swells due to the fact that the sealing performance of the packaging box is improved is solved.

The utility model discloses an electrode pair, a shock wave balloon catheter and a shock wave balloon catheter system. The insulating part is arranged on the periphery of the inner electrode in a sleeving mode, and the insulating part is provided with a first opening penetrating through the space between the two ends of the insulating part; the outer electrode is arranged on the periphery of the insulating part in a sleeving mode, and the outer electrode is provided with a second opening penetrating through the portion between the two ends of the outer electrode. By improving the structures of the insulating part and the outer electrode, gaps between the insulating part and the inner electrode as well as between the outer electrode and the insulating part are eliminated, the radial size of the electrode pair is reduced, and when the electrode is correspondingly applied to the shock wave balloon catheter, the outer diameter of the shock wave balloon catheter corresponding to the electrode pair can be reduced; and the ability of the shock wave balloon catheter to pass through a narrow tortuous blood vessel is improved. The insulating part and the outer electrode are circumferential non-closed parts, only the wall thickness of the insulating part and the wall thickness of the outer electrode need to be controlled, the precision requirement for the inner diameter and the outer diameter of the insulating part and the outer electrode is low, and therefore the machining difficulty and the machining cost are reduced.

The invention relates to a continuous casting soft reduction calibration and self-verification tool and method, and belongs to the field of continuous casting withdrawal and straightening machine roll gap calibration and verification. The roller spacing of the withdrawal and straightening machine can be quickly and accurately calibrated, and the accuracy of the roller spacing can be verified, so that calibration and self-verification can be completed within limited time. The calibration and verification tool is a chained dummy bar at least comprising two standard blocks, and the construction mode of the calibration and verification tool is that the standard block A is located at the foremost end of the dummy bar, the standard block B is arranged behind the standard block A, the standard block A is used for calibrating the roller spacing during calibration, and the standard block B is used for verifying the calibration accuracy. According to the continuous casting soft reduction calibration and self-checking tool and method, the two standard blocks are used for calibrating and checking the roller spacing of the withdrawal and straightening machine, calibration and checking are completed at a time, and the defect that soft reduction process execution deviation is caused by inaccurate calibration due to the influences of the clearance of the withdrawal and straightening machine, the straightening area, errors in the calibration process and the like is overcome.

The invention relates to the technical field of stacking equipment, and particularly discloses stacking equipment for carton production, which comprises a mechanical arm, two electric sliding rails are mounted on the mechanical arm, a mounting seat is mounted at the bottom of one side of each electric sliding rail, a lower clamping plate is arranged on the mounting seat, an upper clamping plate is slidably arranged on the electric sliding rails, and a plurality of conveying belts are arranged on the lower clamping plate. A plurality of conveying belts are arranged on the lower clamping plate to drive the carton to move in the length direction of the lower clamping plate, and a plurality of rotating rods are arranged among the conveying belts and are in transmission connection; according to the stacking equipment for carton production, through synchronous rotation of the conveying belt and the rotating wheels, cartons on the conveying belt can move in the diagonal direction of the lower clamping plate, at the moment, the cartons can be close to the two adjacent stacked cartons, so that gaps between the cartons are eliminated, the stacked cartons do not need to be pushed to be aligned through external equipment, and the production efficiency is improved. And large friction between the cartons is avoided, so that printed matters on the cartons are prevented from being scratched or scratched.

The invention discloses an NIR-II video lymphatic vessel segmentation method based on Frangi and multi-frame accumulation, and belongs to the field of computer vision, and the method comprises the following steps: converting a video into a frame image; preprocessing the frame image by using a contrast limited adaptive histogram equalization algorithm and neighborhood mean filtering; performing top-hat transformation on the preprocessed image to obtain a rough foreground image; taking a mean value of non-zero pixels as a threshold value, and performing adaptive segmentation frame by frame; accumulating the output binary image, and enhancing a tubular structure in the image by using Frangi filtering; and performing certain morphological processing on the image after Frangi filtering to obtain a final lymphatic vessel segmentation result. According to the NIR-II video lymphatic vessel segmentation method based on Frangi and multi-frame accumulation, the detection capability of low-contrast lymphatic vessels with tiny disturbance in the video is improved.

The invention relates to a streaming pipe, a streaming heat exchanger, a streaming heating pipe and application thereof.The streaming pipe comprises a first pipe fitting which is communicated end to end to form a first channel, the first channel is provided with a first partition assembly, and the first partition assembly divides the first channel into at least two independent flow channels; the first separation assembly is spirally distributed in the axis direction of the first pipe fitting, the first separation assembly is attached and fixed to the inner wall of the first pipe fitting in a diameter reducing extrusion mode, and meanwhile a gap between the inner wall of the first pipe fitting and the first separation assembly is eliminated in the diameter reducing extrusion mode. According to the heat exchanger, the first pipe fitting is divided into a plurality of independent partition assemblies through the first partition assemblies, the heat exchange stroke can be increased, meanwhile, the first partition assemblies and the second partition assemblies are spirally distributed in the axis direction, turbulent flow can be generated on fluid, the fluid spirally advances around the axis, the heat exchange coefficient of the fluid and the pipe wall is increased, and the heat exchange efficiency is improved; meanwhile, the first separation assembly and the second separation assembly can improve the strength of the heat exchanger.

The utility model discloses a flood-proof roller shutter door. The flood-proof roller shutter door comprises a roller shutter assembly, the roller shutter assembly comprises a plurality of roller shutter pieces and a plurality of flood-proof baffles which are connected in sequence, the roller shutter pieces are hinged, the flood-proof baffles are hinged, the roller shutter pieces and the flood-proof baffles are hinged, and the roller shutter pieces and the flood-proof baffles are detachably connected; the roller shutter mechanism is connected with the roller shutter pieces located at the head end of the roller shutter assembly and used for driving the multiple roller shutter pieces and the multiple flood-proof baffles to be rolled or stretched. The pressing mechanism comprises a first pressing assembly and a second pressing assembly, the first pressing assembly comprises a first driving part and a pressing plate, and the first driving part is connected with the pressing plate and used for driving the pressing plate to press the multiple flood-proof baffles in the horizontal direction; the second pressing assembly is used for pressing the multiple flood-proof baffles on the supporting face in the vertical direction. By means of the mode, the flood-proof rolling shutter door can efficiently and conveniently achieve the water retaining effect.

The lamp comprises a light source module, a mounting hanging bracket, a mounting plate and a gypsum board, the light source module comprises a box body and a light source assembly, a first mounting through opening is formed in the bottom of the box body, the mounting hanging bracket is fixed to the two sides of a bottom plate of the box body, and the mounting plate is fixed to the bottom of the box body; a second mounting through opening is formed in the bottom of the mounting plate, the gypsum board is fixed to the bottom of the mounting plate and comprises a mounting frame, a lamp shell and a gypsum board body, a leveling layer is arranged at the bottom of the gypsum board body, and the bottom of the lamp shell is flush with the bottom of the leveling layer. The lamp capable of emitting light in a hidden mode is advanced in design and convenient to install, the gypsum board and the lamp are integrally formed, a gap at the joint of the gypsum board and the lamp is eliminated, the decoration time can be greatly saved, the size error of a ceiling hole can be easily reduced, leveling is convenient, and meanwhile putty can be prevented from entering the lamp to cause damage to the lamp.

The invention discloses an automobile safety belt end piece pretensioner which comprises a supporting frame, a reel, a coil spring structure and a braid, the reel is arranged on the supporting frame, the braid is wound on the reel, one end of the reel is connected with the coil spring structure arranged on the supporting frame, the automobile safety belt end piece pretensioner further comprises a motor and a transition wheel, the motor is arranged on the supporting frame, and the transition wheel is arranged on the supporting frame. The output end of the motor is connected with a transition wheel, and the transition wheel is arranged at the other end of the reel through a one-way meshing device. Under the normal wearing condition of the electric end piece pretensioner, the braid is attached to the human body, wearing is more comfortable, when a driver and passengers lean over to take objects or move the body to be relaxed, the braid can be pulled out, and wearing is more convenient and more comfortable; under the collision condition, the braid can be actively recycled, a gap between the braid and a human body is eliminated, and the collision safety is improved; in addition, the motor can be reused, no pungent gas is generated compared with a traditional scheme, the experience feeling is better, and the cost is relatively low.

The embodiment of the invention provides a pixel line adjusting method and system in a laser scanning imaging process and related equipment, which are used for reducing or eliminating laser imaging errors caused by upper stacking and lower leakage in the laser scanning process. The method provided by the embodiment of the invention comprises the following steps: acquiring the offset of a developing area of each laser light source in a scanning vertical direction; according to the offset of each developing area in the scanning vertical direction, adjusting the number of pixel rows of the exposure area distributed by each laser light source; wherein if the offset of the target developing area is opposite to the adjustment movement direction of the laser light source, the number of pixel rows of the corresponding laser light source of the target developing area is reduced, and if the offset of the target developing area is the same as the adjustment movement direction of the laser light source, the number of pixel rows of the corresponding laser light source of the target developing area is increased.

The utility model relates to the technical field of belt conveyors, in particular to a belt conveyor roller bearing seat sealing reinforcing structure, which is characterized in that a retainer ring is sleeved outside a neck ring in a fixed structure mode, a movable ring is sleeved outside a roller shaft on the inner side of the neck ring, and a runner is arranged between the movable ring and the neck ring; the retaining ring is sleeved with the buckle cover, the buckle cover is connected with the movable ring in a fixed structure mode, an oil cavity B is defined by the buckle cover, the retaining ring, the movable ring and the neck ring, the oil cavity B is communicated with the oil cavity A through a flow channel, and lubricating grease is arranged in the oil cavity B; according to the structural design, the oil cavity A, the oil cavity B and the runner form a closed space through the first sealing ring and the second sealing ring, the closed space is used for eliminating a gap between the movable ring and the neck ring, impurities such as coal slime can be prevented from permeating into the bearing seat through the runner, the structural leakproofness is improved, and the service life of the bearing seat is prolonged. And the lubricating effect can be achieved, and the service life is prolonged.

The utility model discloses a bag type dust collector convenient to disassemble, which relates to the field of bag type dust collectors and comprises a bag type dust collector shell, a disassembling window is arranged on one side wall of the bag type dust collector shell, a side baffle is connected to the disassembling window of the bag type dust collector shell, and a mounting plate is fixed in the bag type dust collector shell. A plurality of mounting windows are formed in the mounting plate at equal intervals in the horizontal direction, openings are formed in the mounting windows in the ends, close to the detachable windows, of the mounting plate, and a cloth bag dust removal assembly is mounted in each mounting window and comprises a dust removal cloth bag and a detachable plate; an exhaust window is formed in the middle of the detachable plate in the height direction of the bag type dust collector shell in a penetrating mode, side sliding plates are fixed to the two sides of the detachable plate correspondingly, installation sliding grooves are formed in the two inner side walls of the installation window correspondingly, the side sliding plates slide into the installation sliding grooves from the opening ends of the installation window in a matched mode, and the dust collection cloth bags are connected to the bottom of the detachable plate. And rapid mounting and dismounting can be completed in a small space range, and the dismounting and mounting efficiency is improved.

The invention discloses a method and system for identifying colloid based on a point cloud algorithm, and relates to the technical field of machine vision, and the method comprises the steps: generating a calibration matrix based on point cloud data, so as to carry out the calibration processing of a detection head; a hand-eye matrix is generated based on the calibration matrix so as to calibrate the mechanical arm; based on the calibrated mechanical arm, controlling the calibrated detection head to obtain workpiece point cloud data of the vehicle workpiece, and performing planar splicing processing on the workpiece point cloud data to obtain planar point cloud data; performing feature extraction on the planar point cloud data based on histogram analysis to obtain point cloud feature data; carrying out colloid region identification processing based on the point cloud feature data; and performing colloid three-dimensional data calculation based on the colloid region identification result to obtain target colloid three-dimensional data. According to the invention, too large deviation between the obtained colloid region identification result and the actual situation can be avoided, and the colloid identification achieves a more ideal effect.

In order to solve the problem of poor detection accuracy of a preset clearance angle of a brake clearance adjusting arm, the invention provides a device and a method for measuring the preset clearance angle of an automobile brake clearance adjusting arm. Comprising a main worm gear fixing device, a worm hexagonal head fixing device used for fixing and detecting a main worm hexagonal head of the brake clearance adjusting arm, an adjusting arm body fixing device, and a driving device used for centering an adjusting arm control ring, driving the control ring to rotate and detecting the rotation angle and torque in the rotation process. The main worm gear fixing device comprises a fixing assembly which is used for fixing a main worm gear of the brake clearance adjusting arm and is adjustable in position in the height direction, and the adjusting arm body fixing device drives an arm body of the brake clearance adjusting arm to rotate around the axis of the main worm gear by arranging a torque applying assembly so as to apply a certain torque. The interference of unnecessary clearance and friction force is eliminated to the greatest extent, and the accuracy of the measurement of the preset clearance angle of the to-be-measured piece is effectively improved.

The present invention relates to the field of vehicle battery replacement technology, and in particular, to a battery box system. The battery box system includes a battery box assembly, a base assembly, a first locking assembly and a second locking assembly. The battery box assembly includes a battery box body, a packaging frame, a first pressure plate and a second pressure plate. The first locking assembly and the second locking assembly are arranged on the base assembly. The first locking assembly includes a clamping block and a first transmission unit, and the first transmission unit drives the clamping block to rotate and lift; the second locking assembly includes a pressing block and a second transmission unit, and the second transmission unit at least drives the pressing block to lift. When the battery box assembly is locked on the base assembly, the clamping block is pressed on the side of the first pressure plate away from the base assembly, and the pressing block is pressed on the side of the second pressure plate facing the base assembly. In this way, the problem of low locking reliability of the battery box body on the vehicle is solved.

The invention discloses an active tooth leaning method, device and equipment for a new energy commercial vehicle and a computer readable storage medium, and the method comprises the steps: determining whether a torque output condition is met or not according to the obtained current gear information, rotating speed, crawling function information, constant-speed cruise function information and hill-holding function information of the vehicle; if it is determined that the torque output condition is met, tooth leaning torque and request torque are obtained, and the tooth leaning torque is obtained through calculation according to a transfer function of the electric drive system; according to the tooth leaning torque and the request torque, whether the tooth leaning torque is smoothly output through a preset PI regulator or not is determined so as to complete active tooth leaning, the technical problem that in the prior art, the torque is generally determined through calibration or experience, and tooth gaps cannot be eliminated is solved, and the tooth leaning accuracy is improved. The tooth leaning torque is obtained through calculation of the transfer function of the electric driving system, the gear clearance of the electric driving system is eliminated, the tooth leaning process is smoother, and the driving experience and the system efficiency are improved.

The invention relates to the technical field of mechanical positioning, and particularly discloses a high-precision automatic positioning device which comprises a driver, a driving rod, a positioning pin and a positioning seat with a guide hole, the positioning pin is mounted on the driving rod and slidably connected in the guide hole, one end of the positioning pin is provided with circumferentially distributed elastic blocks, and the other end of the positioning pin is slidably connected in the guide hole. The tensioning block is matched with the elastic block in a wedge surface / conical surface mode, the elastic block is located on the outer side of the tensioning block in the circumferential direction, the driving rod pushes the positioning pin to move, the tensioning block and the positioning pin are coaxial, and after the tensioning block expands the elastic block, the elastic block abuts against the guide hole. According to the positioning method, a high-precision automatic positioning device needs to be used for positioning a to-be-positioned part, and the positioning method comprises the following steps that the positioning pins are controlled to be inserted into the positioning holes, and then the tensioning blocks are controlled to continue to move towards the positioning holes so as to expand the elastic blocks. The scheme is used for solving the problem that the positioning precision is difficult to ensure due to a gap between the positioning pin and the positioning seat.

The invention discloses a railway hopper car for transporting powdery goods, which relates to the technical field of railway hopper cars, and comprises a car body, a pneumatic control system, a car coupler buffer device, an air brake device, a manual brake device and a bogie, the vehicle body comprises a bottom frame, two funnels with double-sealing structures are arranged at the bottom of the bottom frame and distributed on the two sides of a middle beam of the bottom frame, two side walls are arranged on the two sides of the bottom frame, end walls are arranged at the two ends of the two side walls respectively, a vehicle roof is arranged on the upper portions of the side walls and the end walls, and unloading openings are formed in the bottoms of the funnels. A turnover type bottom door with a secondary locking device is arranged at the unloading opening, and the car roof comprises a fixed top cover assembly and a movable top cover assembly arranged over the fixed top cover assembly. The hopper car side wall is reasonable in design, and the problems that the hopper car side wall cannot give consideration to strength and space, a top cover is clamped, a bottom door is prone to being accidentally opened and sealing performance is poor are solved.

The invention discloses a PCB positioning device and solder paste printing equipment, and relates to the technical field of circuit board production, and the PCB positioning device comprises a first lifting mechanism, a second lifting mechanism and a positioning clamp. Wherein the first lifting mechanism can do lifting motion relative to the base table, the second lifting mechanism is located above the first lifting mechanism and can do lifting motion relative to the first lifting mechanism, the upper portion of the second lifting mechanism is further provided with a carrying table used for carrying a PCB, and the positioning clamp is located above the second lifting mechanism. The positioning clamp forms a clamping space for the PCB, and the object placing table can be driven by the second lifting mechanism to move in the direction close to or away from the clamping space. The two lifting mechanisms lift the PCB to the highest position of the clamping position of the positioning clamp and the height of the printing position, it is guaranteed that the upper surface of the positioning clamp and the printing face of the PCB can make full contact with the lower surface of the steel mesh, it is guaranteed that printing content cannot be lost, the good printing quality is guaranteed, and the final process effect is improved.

The utility model relates to the field of high-voltage direct-current circuit protection, in particular to an anti-short-circuit-current direct-current contactor which comprises an electromagnetic driving mechanism, a static contact and a moving contact structure. The moving contact structure comprises a base, a U-shaped bracket movably clamped on the base, a contact spring positioned between the base and the U-shaped bracket, a U-shaped bracket, a moving contact bridge, an upper magnetizer and a lower magnetizer; the push rod is arranged on the base. The two sides of one end, facing the static contact, of the U-shaped support are fixedly connected with an upper magnetizer and an elastic piece. The movable contact bridge is located between the upper magnetizer and the lower magnetizer; the two ends of the contact spring abut against the lower magnetizer and the base respectively. An air gap is reserved between the upper magnetizer and the lower magnetizer, a gap is reserved between the U-shaped support and the base in the moving contact bridge displacement path direction, and the gap is smaller than the overtravel distance. When the switch is switched on, the gap between the U-shaped support and the base is eliminated, so that the air gap between the upper magnetizer and the lower magnetizer is minimum, and the capability of resisting short-circuit current is strongest.

The utility model discloses an epitaxial growth ring bearing jig. The epitaxial growth ring bearing jig comprises a growth disc and a growth ring, the growth disc comprises a base and a step part protruding out of the upper surface of the base. The growth ring is arranged on the periphery of the growth disc in a surrounding mode and comprises an upper sealing part and a lower sealing part which are connected with each other. The upper sealing part covers one part of the upper surface of the step part in parallel, and the upper sealing part and one part of the upper surface of the step part are arranged at intervals to form a containing groove, so that the substrate in the containing groove and the upper sealing part are arranged hermetically. One end of the lower sealing part is connected with one end, close to the edge of the growth disc, of the upper sealing part, the other end of the lower sealing part extends to the bottom of the peripheral surface of the base towards the base, and the lower sealing part is close to the peripheral surface of the growth disc, so that the lower sealing part is sealed with the peripheral surface of the growth disc. According to the epitaxial growth ring bearing jig provided by the utility model, the substrate atomization phenomenon is improved, the working procedures are reduced, the input cost is reduced, the yield of the epitaxial layer of the substrate is improved, and the shipment efficiency is improved.

The utility model discloses an electric toothbrush replacement head, which belongs to the technical field of electric toothbrushes and comprises a tail cover, a motor and a brush head body. The tail cover is provided with a fixing part, a limiting part connected with the fixing part and an inserting part connected with the limiting part, the other end of the inserting part is connected with a tail cover elastic wall, a connecting block is arranged between the tail cover elastic wall and the limiting part, and two grooves are formed in the end, close to the tail cover elastic wall, of the connecting block; a second elastic wall is arranged between the two grooves, a first elastic wall is arranged at the position, on the opposite side of the second elastic wall, of the limiting part, and an inserting groove is formed in the position, on the connecting block, of the inner side of the inserting part; two first limiting strips matched with the grooves are arranged in the brush head body. The replacement head of the electric toothbrush can solve the problems that toothpaste on the head of the toothbrush splashes before tooth brushing and foam splashes during tooth brushing.

The utility model provides a parallel switch door device, including base, moving plate, seal door, be provided with taking mouth and linear drive arrangement on the base, moving plate links to linear drive arrangement, and seal door is through the sliding connection with moving plate with guide mechanism, through linear drive arrangement drive seal door moves between open position and close position, be provided with tightly closed mechanism between seal door and base, in the process that seal door moves from open position to close position, through tightly closed mechanism drive seal door moves to the direction of taking mouth, the utility model discloses through setting tightly closed mechanism, when seal door reaches close position, additional drive its movement to the direction of taking mouth, realize seal door and the close adhesion of taking mouth, fundamentally eliminate the gap, improve the sealing property when closing, prevent the dust, insect etc. of outside from entering the inside of equipment, ensure the cleaning of equipment inside, avoid the article in the inside of unattended vending equipment to be contaminated.

The invention provides a soft soil tunnel steel arch mounting device and a using method thereof. The soft soil tunnel steel arch mounting device comprises a plurality of bottom plates, lifting mounting tables are arranged on the bottom plates, jacking devices are arranged between the bottom plates and the mounting tables, compacting devices are arranged at the bottoms of the bottom plates, each compacting device comprises a settlement sensing device, a jacking device and a jacking rod, and the jacking rods are mounted at the bottoms of the bottom plates. When the bottom of the bottom plate settles, the solid agent extends into the air bag to generate air and increase the pressure of the jacking device so as to fill the bottom of the bottom plate, inclination of the whole device caused by settlement is avoided, and meanwhile, jacking force of the jacking device is transmitted to the bottom plate through the jacking rod so that the bottom plate can bear supporting force of the bottom. And the whole device is further prevented from inclining. A gap between the bottom plate and the tunnel when the tunnel steel frame is installed is avoided, and the phenomena that in the long-term use process of the tunnel, the tunnel foundation is prone to sinking, the overall structure deforms or collapses, the bearing capacity is reduced, and the stability of the tunnel is affected are avoided.