75results about How to "Reduce suction" patented technology

The invention belongs to the technical field of semiconductor processing, and discloses a semiconductor wafer positioning device which comprises a shell, an outer ring is fixedly installed at the top end of the shell, a plurality of guide grooves are formed in the circumference of the upper surface of the outer ring at equal intervals, sliding blocks are slidably connected to the middles of the guide grooves in a sleeving mode, and a plurality of positioning mechanisms are arranged on the circumference of the outer curved surface of the shell at equal intervals. A driving mechanism fills air between a connecting seat and a fixing plate in an inner cavity of a shell to push an adsorption mechanism to move upwards, and a plurality of pressure valves which bear the maximum atmospheric pressure equal to the weight of the adsorption mechanism are arranged, so that when a wafer is separated from a clamping and positioning device and is in contact with an object carrying sleeve, the plurality of closed pressure valves are opened, and the wafer is clamped and positioned. And the wafer slowly pushes the adsorption mechanism to move downwards under the action of gravity, so that the problems of wafer deformation and center offset caused by rigid contact between the wafer and the workbench in the process of directly placing the wafer on the upper surface of the workbench in the existing wafer positioning and clamping device are solved.

The invention discloses an adjustable cable preparation wire drawing forming machine, and relates to the technical field of cable wire drawing forming machines, the adjustable cable preparation wire drawing forming machine comprises a shell, a fixing block is rotatably connected in the shell, a round rod is fixedly connected to the outer side of the fixing block, a spur gear is fixedly connected to the outer side of the round rod, and a through hole is formed in the fixing block; an arc block is fixedly connected to the inner wall of the through hole, a positioning assembly is arranged in the middle of the interior of the fixing block, a rotating wheel is slidably connected to the through hole, a fixing plate is rotatably connected to the outer side of the rotating wheel, an elastic plate is fixedly connected to the outer side of the fixing plate, and a guide assembly is fixedly connected to the end, away from the rotating wheel, of the fixing plate. According to the adjustable wiredrawing forming machine for cable preparation, the guide assembly makes contact with the outer side of a copper wire, the copper wire can advance in the preset direction in the wiredrawing process, deviation or bending cannot occur, a stable path is provided for wiredrawing of the copper wire, and the copper wire is prevented from deviating from the correct path in the wiredrawing process.

The invention discloses a relay. The relay comprises a contact assembly and a stopper. The contact assembly comprises two movable spring parts which are arranged side by side, and a parallel circuit structure is formed when the two movable spring parts make contact with each other. The stop piece is arranged between the two movable spring parts and used for stopping the two movable spring parts, so that the deflection of bending deformation generated after the two movable spring parts attract each other due to the fact that current passes through the parallel circuit structure is smaller than or equal to a threshold value.

The utility model discloses a breast pumping assembly and a breast pump, and the breast pumping assembly comprises a fixed part, a diaphragm support, an outer layer milk guide part and an inner layer milk guide part; the diaphragm support is connected to the fixing piece and provided with a negative pressure cavity. The outer-layer milk guide piece is connected to the fixing piece, and when the breast pump is arranged on the breast, the outer-layer milk guide piece is located above the diaphragm support; the outer-layer milk guide piece is provided with a first milk guide channel, a milk flowing hole and a first air guide hole; the inner-layer milk guide piece is provided with a second milk guide channel communicated with the first milk guide channel and a second air guide hole communicated with the second milk guide channel, and at least part of the inner-layer milk guide piece extends into the first milk guide channel; the inner-layer milk guide piece and the outer-layer milk guide piece define an air guide channel communicating the first air guide hole and the second air guide hole, and the second air guide hole is located above the central axis of the second milk guide channel when the breast pump is placed on the breast. According to the milk sucking assembly, milk is prevented from flowing into the negative pressure cavity, and therefore the negative pressure cavity is prevented from being polluted, and the sucking performance of the breast pump is prevented from being reduced.

The present application relates to a thin-walled shell forming mold, which belongs to the field of processing and forming technology. The thin-walled shell forming mold includes a first mold body and a second mold body; the first mold body includes a first molding surface; the second mold body includes a second molding surface, and the second molding surface and the first molding surface form a molding cavity for molding the shell; wherein the first molding surface is provided with a gate for injecting molding liquid into the molding cavity, the second molding surface is provided with a plurality of first air holes for discharging gas from the molding cavity, and the second mold body is provided with an air cavity for accommodating gas, and the plurality of first air holes are connected to the air cavity. The thin-walled shell forming mold provided by the embodiment of the present application can improve the yield rate of the manufactured thin-walled shell.

The utility model relates to the technical field of sanitary cleaning equipment, in particular to cleaning equipment for optimizing gas-liquid separation, which comprises a body, and a power device, a collecting component, a filtering component, a pipeline component and a cleaning brush head which are arranged on the body, the pipeline component is respectively communicated with the power device, the filtering component, the collecting component and the cleaning brush head, and the cleaning brush head is arranged on the body. The power device is provided with a motor and fan blades, the motor drives the fan blades to operate, air flow penetrates through the cleaning brush head, the pipeline assembly, the collecting assembly and the filtering assembly and then is discharged out of the body, the collecting assembly is provided with a dust collecting barrel used for collecting dust or liquid in the air flow, and the filtering assembly is provided with a first filtering material used for filtering tiny dust in air. Finally, dust accumulated on the filter can be reduced, so that the cleaning frequency and the cleaning strength are reduced, liquid in airflow can be separated, the liquid is prevented from entering the filtering assembly, and the cleaning effect of the cleaning equipment is improved.

The utility model relates to the technical field of gutter cleaning, in particular to an eave cleaning assembly, which solves the problem of how to improve the passing air volume of an eave pipe matched with a fan in the use process on the premise of ensuring the universality of the eave pipe, and the eave cleaning assembly is used for being externally connected with the fan. The eave cleaning assembly comprises a pipe body, wherein the pipe body comprises a first end and a second end; one end of the elastic corrugated pipe is connected with the second end of the pipe body; the other end of the elastic corrugated pipe is connected with the sleeve piece, and the outer surface of the sleeve piece is sleeved with a clamping piece; an air inlet of the fan abuts against the end, close to the sleeve piece, of the elastic corrugated pipe, meanwhile, the sleeve piece wraps the air inlet of the fan, and the air inlet and the sleeve piece are connected and locked through the clamping piece.

The utility model discloses a magnetic type connector, and belongs to the technical field of connectors. The device mainly comprises a rubber-coated shell, the female end assembly is provided with a female end rubber core suitable for connection, and two sets of female end magnets are arranged in the female end rubber core; a male end assembly, a reset assembly and a separation assembly are included, the separation assembly comprises a shell and a button, the button is arranged in the shell in a sliding mode, and a first inclined sliding block is installed at the bottom of the button; the square frame is arranged in the shell in a sliding mode, and a rolling wheel is rotationally installed in the square frame and attached to the inclined face of the first inclined sliding block; the connecting rod is installed at one end of the square frame, and the end, away from the square frame, of the connecting rod is connected with the two sets of female end magnets. According to the magnetic type connector, through the separation assembly, when the female end assembly is pulled out, the male end magnet and the female end magnet are separated firstly, so that the attraction force in the male end magnet and the female end magnet is reduced, the female end assembly can be pulled out smoothly, and the effect of separating the male plug from the female plug smoothly is achieved.

The utility model provides an ear pus removing device, which belongs to the technical field of pus removing devices and comprises a sleeve, three groups of clamping plates are arranged at one end of the sleeve, knobs are respectively connected with one sides of the three groups of clamping plates through threads, suction pipes are arranged in the three groups of clamping plates, one end of a first water pipe is arranged at the other end of the sleeve, and a negative pressure component is arranged at the other end of the first water pipe. A first sliding groove is formed in the sleeve, a sliding rod is arranged in the first sliding groove, a spring is arranged between the sliding rod and the first sliding groove, a piston is arranged on one side of the sliding rod, a supporting seat is arranged on one side of the sleeve, and a storage assembly is arranged on the supporting seat; through the arrangement of the sliding rod and the piston, the suction force of the pus removing device can be controlled, the situation that the ear canal of a patient is broken due to suction, unnecessary pain and discomfort are caused, and the follow-up treatment difficulty is increased is avoided, through the arrangement of the storage assembly, cotton swabs are placed in the storage assembly, the operation steps of an operation can be reduced, the treatment time is shortened, and the treatment efficiency is improved. And the operation burden of medical staff is also reduced.

The utility model discloses an automatic switching edge grinding device of toughened glass, including the processing base that is square, be provided with glass bearing structure on the processing base, be equipped with the edge grinding mechanism in the position of glass bearing structure one side on the processing base, glass bearing structure includes the base, and the top surface of this base is provided with the installation groove, is provided with the bearing platform for bearing glass in the installation groove, and the circumference of bearing platform is provided with a plurality of limiting rods that are evenly distributed along its circumferential direction, the side wall of installation groove is concave and is equipped with a plurality of limiting grooves, and the number of limiting groove corresponds with limiting rod, and limiting groove penetrates the top of bearing platform upwards. The utility model discloses through the configuration of the limiting rod and limiting groove of bearing platform, plays the role of fixed bearing platform, and simultaneously, when needing to adjust the angle of toughened glass, only needs through telescopic link to make bearing platform rise first, rotates again, finally makes bearing platform drop and can realize.

The invention relates to the technical field of medical sputum removal equipment, in particular to a portable respiratory tract secretion removal device. The device comprises a support, a working set is arranged in the support, the working set comprises a negative pressure generator, the negative pressure generator at least comprises an air suction barrel, a piston is slidably connected in the air suction barrel, an air inlet is formed in the bottom of the air suction barrel, and a plurality of air leakage openings are formed in the side wall of the air suction barrel. The bottom of the air inlet is communicated with an air inlet assembly; a plurality of buffer assemblies are slidably connected to the bottom of the air suction cylinder, and pressure relief assemblies are arranged below the buffer assemblies; according to the portable respiratory tract secretion removing device, the arranged piston is used for generating negative pressure in the air suction barrel, when the piston slides in the air suction barrel, the buffering assembly is used for preventing the negative pressure in the air suction barrel from increasing too fast, and the buffering assembly can further ensure the air tightness of the connector of the air suction barrel and the buffering assembly.

The utility model discloses a rotation stopping device for a suction inlet of a water pump, and belongs to the field of water supply systems of pipeline pump sets. The rotation stopping device comprises an installation bottom plate welded to the position, corresponding to a water pump suction inlet, in the expansion water tank, and a through hole formed in the installation bottom plate and communicated with the water pump suction inlet. The eight flow guide plates are distributed on the side, away from the water pump suction inlet, of the mounting bottom plate in an annular array mode and welded to the mounting bottom plate, and the top anti-rotation plates are welded to the sides, away from the mounting bottom plate, of the eight flow guide plates. And the guide plate is a V-shaped metal plate bending piece. According to the rotation stopping device, the liquid level of a water pump inlet is lowered by arranging the mounting bottom plate, the through hole, the eight flow guide plates and the top rotation preventing plate, an original water pump suction inlet is divided into eight water inlet channels, liquid can be dispersed into the water pump more evenly, the overall suction force and the flow speed of the water pump suction inlet are effectively reduced, and the water pump efficiency is improved. Therefore, vortexes and bubbles generated due to too high flow speed can be reduced, and the operation stability of the water pump is improved.

The utility model discloses an automobile parts punching device, including base, the inside screw thread of base is provided with threaded tube, and threaded tube penetrates base, and still screw thread is installed with strong magnet in base. The base includes the screw thread seat, and the side end fixed connection of screw thread seat has the connecting block, and the fixed connection of connecting block back to screw thread seat one end has first screw thread shell, and strong magnet screw thread is installed in first screw thread shell, and threaded tube screw thread is installed in screw thread seat, and threaded tube penetrates screw thread seat. The lower end fixed connection of first screw thread shell has the skin piece, and the lower end of skin piece is provided with antiskid line. Threaded tube includes threaded tube body, and the base is pasted on target automobile parts, then adjusts the device position, makes the center of threaded tube to be located at the punching, and the drill bit of target handheld drill is inserted into threaded tube, and the drill bit is restrained at the drilling point through threaded tube, and the difficulty of operating handheld drill aiming at punching is reduced.

The utility model provides a textile cloth cleaning device which comprises a suction box and a penetrating box transversely penetrating through the suction box, a mounting shaft located above the penetrating box is further arranged in the suction box, and a driver for driving the mounting shaft to rotate is arranged outside the suction box. A plurality of attachment rods extending from one end of the mounting shaft to the other end of the mounting shaft are further fixedly arranged on the periphery of the mounting shaft, an exhaust pipe is further fixedly connected to the suction box, an exhaust fan is connected to the tail end of the exhaust pipe, and when the exhaust fan runs, airflow in the suction box enters the exhaust pipe after passing through the attachment rods; an inlet and a guide outlet which are located outside the suction box are formed in the two ends of the penetrating box respectively, an air outlet and an air inlet which are located in the suction box and located in the top face and the bottom face of the penetrating box respectively are further formed in the penetrating box, and an air inlet is further formed in the bottom face of the suction box; a filter box is further arranged on the suction box, and a filter plate is further arranged in the filter box in a drawing mode. The textile fabric suction device solves the problem that in the prior art, in the suction process of textile fabric, warp and weft are likely to be disordered or sucked into an exhaust fan from the lower portion.

The utility model relates to an electromagnetic valve end filter screen press-fitting device which comprises a suction head and a vacuum generator connected with the suction head, the vacuum generator generates suction force, the suction head adsorbs an end filter screen, and the end filter screen is press-fitted on a filter screen seat through the suction head. Steel balls are mounted on the filter screen seat; and an air suction channel arranged in the suction head avoids a mesh hole in the center of the open-end filter screen. The suction channel arranged in the suction head is enabled to avoid the mesh hole in the center of the open-end filter screen, the required suction force is small, and the displacement of the steel ball can be avoided.

The utility model discloses a strong suction dust collector which comprises a bracket, a limiting ring is fixedly installed on the upper surface of the bracket, a first sleeve, a second sleeve and a third sleeve are sleeved with the limiting ring, the first sleeve, the second sleeve and the third sleeve are connected together in a threaded mode, a first motor is fixedly installed in the first sleeve, and a second motor is fixedly installed in the second sleeve. A vacuum dust collector propeller is fixedly installed at one end of an output shaft of the first motor, a button is electrically connected to one end of the electric control end of the first motor, a cross-shaped frame is fixedly installed in the second sleeve, the surface of the cross-shaped frame is sleeved with a filter screen, and a push-pull assembly is fixedly installed in the third sleeve. Through the design of the pushing and shifting assembly, sundries on the surface of the filter screen can be pushed and swept away, it is ensured that the suction force of the dust collector is not reduced, and the dust collector keeps strong and stable suction force in the cleaning process by keeping the dust collection opening unblocked.

The present application relates to oil and gas storage and transportation application field, specifically relates to a kind of centrifugal pump segmented filling pump device and filling pump method;Including centrifugal pump, filling pump valve, pump outlet cut-off valve, pump inlet valve, subsea valve and pump inlet intermediate check valve;The centrifugal pump one end is connected pump outlet pipe, the other end is connected pump inlet pipe, wherein pump outlet cut-off valve and filling pump valve are sequentially arranged on pump outlet pipe;The present application gradually fills pump inlet pipeline by using segmented dense medium liquid, air is gradually absorbed and replaced by liquid by the action of centrifugal pump, so as to realize the dense filling of space in pump shell, ensure that pump inlet pipeline forms segmented dense structure before starting, so that liquid can smoothly enter pump shell and be pumped to outlet through the working cavity of pump, effectively avoid the phenomenon of pumping empty when pump starts, ensure the normal flow of liquid.

The utility model provides an air supply mechanism and a toughening furnace, the air supply mechanism comprises an axial flow fan and an air bellow, the axial flow fan comprises an air inlet and an air outlet, and environmental gas flows into the axial flow fan through the air inlet and is exhausted through the air outlet; the air bellow is communicated with the axial flow fan through the air outlet; the axial flow fan and the air bellow are arranged in a stacked mode in the vertical direction, and at least part of the axial flow fan is installed above the air bellow, and the top of the axial flow fan is installed at the top of the air bellow so as to raise the height of the air inlet in the vertical direction. The toughening furnace comprises an air supply mechanism and a furnace body, the furnace body is provided with a quenching section air grid, and the quenching section air grid is communicated with the air supply outlet of the air bellow. The air supply mechanism and the toughening furnace provided by the utility model have the advantage that the occupied area of equipment is reduced, and meanwhile, the possibility of sucking pollutants in the air is reduced.

The utility model discloses a dust suction port, fallen leaf collecting device and sweeper truck relates to urban cleaning technical field, including shell and suction port flashboard, the interior of shell is provided with a dust suction channel, the dust suction channel vertically extends upwards from shell bottom, the bottom of dust suction channel is provided with bottom opening, the side face of dust suction channel close to bottom is provided with suction port, and the suction port flashboard is provided with the bottom opening. The bottom opening is connected and communicated with the suction port, a suction port insertion plate is arranged at the suction port, the suction port insertion plate can move towards the suction port to cover the suction port and move away from the suction port to expose the suction port, and the size of the suction port can be changed through the shape and the structure of the suction port to prevent blockage; the dust collection effect of the fallen leaf collecting device using the dust collection opening and the sweeping machine is greatly improved.

The invention belongs to the technical field of sewage treatment, and particularly relates to a sewage treatment and recycling device and method.The sewage treatment and recycling device comprises a treatment tank, a settling chamber and two sewage treatment chambers are sequentially arranged in the treatment tank in the axis direction of the treatment tank, and the settling chamber and the two sewage treatment chambers are completely separated through vertical partition plates; through holes are formed in the tops of the settling chamber and the two sewage chambers, and two guide plates are symmetrically arranged in the settling chamber. Through the arrangement of the separation assembly, when sewage flows through the inner side of a U-shaped plate under the guidance of a flow guide plate, a magnetic plate located in a protective cover can adsorb and intercept metal residues in the sewage, then the magnetic plate can be far away from the metal residues by extending a hydraulic push rod, and then the suction force to the metal residues is weakened; and finally, the metal residues can fall into the collecting groove through the strip-shaped hole to be recycled, and waste of the metal residues is avoided.

The invention relates to the technical field of fruit picking, and provides a flexible picking end effector and a picking system using the same. Comprising a torsion device which is connected with a shell, the shell is connected with a supporting piece, and the supporting piece is connected with a flexible profiling film; a first cavity is formed among the torsion device, the shell and the supporting piece, and a second cavity is formed between the supporting piece and the flexible profiling film. A negative pressure generating device is arranged in the first cavity and is connected with the valve body in the second cavity; the valve body is communicated with the second cavity and the hard bionic suction cup located in the main profiling film body of the flexible profiling film. The device has the beneficial effects that only one negative pressure generating device is adopted, and through the structural design of the ventilation screw and the valve body, the quartz particles are made to adapt to the compacting process of the fruit appearance shape, and negative pressure generation between the suction cup and the fruit does not exist in sequence; the negative pressure between the fruits and the suction cup is completely formed at the same time, the picking efficiency is improved, and it is guaranteed that the fruits are not damaged.

The invention discloses a leakage protection circuit with automatic tripping upon power failure and delayed manual reset, comprising a power input end and a load end, wherein a controlled switch and a residual current transformer for detecting leakage signals are arranged in sequence between the power input end and the load end, a signal output end of the residual current transformer is connected to a leakage protection control chip U1, an output end of the leakage protection chip U1 is connected to a solenoid drive circuit and a delayed reset circuit, an output end of the solenoid drive circuit is connected to a solenoid L1 for controlling the on and off of the controlled switch, a power input end is connected to a power supply circuit and supplies power to the leakage protection control chip U1, the solenoid drive circuit, the delayed reset circuit and the solenoid L1 respectively, so that the solenoid is powered off when the leakage protection control chip latches and keeps outputting a power-off signal, and cannot be manually reset to connect the controlled switch to power on the load end, and the leakage protection control chip outputs a power-on signal after the delayed protection ends, so that the load end can be powered on only when the power-on signal is manually reset.

To reduce a cylinder movement velocity with a simple configuration, while preventing an increase in body size and a decrease in fluid injection quantity or suction quantity. The present invention includes: a cylinder 11; a piston 12 that is inserted in the cylinder 11 and partitions an interior of the cylinder 11 into fluid chambers 19 and 20; guides 13 and 14 that support the piston 12 and guide movement of the cylinder 11, the guides 13 and 14 including a first internal flow passage 26 that connects the first fluid chamber 19 to a first external pipe 37 so as to communicate with each other, and a second internal flow passage 30 that connects the second fluid chamber 20 to a second external pipe 38 so as to communicate with each other; and nozzles 24 and 25 communicating with the fluid chambers 19 and 20, respectively, wherein a pipe to communicate with a fluid pressure source 41 is configured to switch between the external pipes 37 and 38, a flow passage from the fluid pressure source 41 to the nozzles 24 and 25 includes a short-circuit flow passage that short-circuits a flow passage communicating with the fluid pressure source 41 and a flow passage not communicating with the fluid pressure source 41, and this short-circuit flow passage is provided with a throttle unit that throttles a flow passage.

The utility model belongs to the technical field of magnet machining, and particularly relates to a multi-splicing gapless magnet assembling machine which comprises a base, a machine body is fixedly installed at the top of the base, a rotating disc is arranged at the top of the machine body, a positioning block is fixedly installed at the top of the rotating disc, and an inner ring plate is fixedly installed on the surface of the positioning block. A magnet body is arranged on the upper surface of the inner ring plate, and through holes are formed in the surface of the inner ring plate. A first electric push rod is started to drive a discharging top plate to move upwards, after the discharging top plate is subjected to lifting adjustment, the discharging top plate can make contact with a top block and a top rod and jack up the top block, after the top block is jacked up, a top column at the top of the top block can extend out of a through hole, and the top column can jack up a magnet body fixed to an inner ring plate in a magnetic attraction mode; the magnet body is far away from the inner ring plate fixed through magnetic attraction, the attraction force of the magnet body is reduced, in this way, the magnet fixed through magnetic attraction can be loosened, the strong attraction force of the magnet is prevented, and the magnet can be attracted by a suction cup conveniently for easy discharging treatment.

The sharpening machine with the dust removal function comprises a dust removal box, one side of the outer portion of the dust removal box is fixedly connected with a dust suction sleeve, the dust suction sleeve is communicated with the lower end of the dust removal box, the interior of the dust suction sleeve is rotationally connected with a sharpening disc, the interior of the dust removal box is fixedly connected with a plurality of second baffles at equal intervals, and a negative pressure fan is arranged at the top of the dust removal box. When the grinding disc rotates rapidly to grind products, the dust removal box pumps out air through the negative pressure fan to generate negative pressure, dust generated after grinding is absorbed through the dust collection sleeve, dust is prevented from diffusing, and after the dust enters the dust removal box, the dust is prevented from entering the dust removal box. The dust in the dust removal box is discharged from the discharge port after the dust in the dust removal box is discharged from the discharge port, and the dust in the dust removal box is prevented from being too much due to the fact that the dust in the dust removal box is prevented from being too much due to the fact that the dust in the dust removal box is directly damaged due to excessive impact on the filter screen of the negative-pressure fan.

The utility model discloses a dry powder feeding machine with a dust collection unit. The dry powder feeding machine comprises a support, a conveying mechanism and a dust collection mechanism. A feed hopper is arranged in the support, and a stock bin is arranged at the upper end of the feed hopper; the conveying mechanism comprises a conveying barrel and a discharging pipe, the conveying barrel is arranged at the lower end of the feeding hopper, and the discharging pipe is arranged at the right end of the outer cambered surface of the conveying barrel; the dust collection mechanism comprises a dustproof box, a dust outlet pipe and inclined arrangement plates, the dustproof box is fixedly connected to the inner wall of the left side of the stock bin, the inclined arrangement plates which are evenly distributed are arranged on the right side between the front inner wall and the rear inner wall of the dustproof box, the dust outlet pipe is arranged at the upper end of the dustproof box, and the outer arc surface of the dust outlet pipe is fixedly connected with the upper side wall of the stock bin; according to the dry powder feeding machine with the dust collection unit, the dust collection unit is simple and clear in structure, more raised dust cannot be generated due to the fact that the dry powder is crossed with the dust collection unit due to the characteristics of the dry powder, and the influence on material conveying operation is avoided.

The present invention provides a fully automatic sheath inspection machine, comprising a feeding mechanism (2), a conveyor belt mechanism (3), a material sorting mechanism, an upper suction belt mechanism (5), a lower suction belt mechanism (6), a waste kicking mechanism and a visual collection device, characterized in that the conveyor belt mechanism comprises a conveyor belt (31) capable of circulating, the material sorting mechanism is used to neatly arrange the sheaths (0) in the inverted triangle notch of the conveyor belt (31), the upper suction belt mechanism (5) comprises an upper suction pinhole belt (51) capable of circulating, the lower suction belt mechanism (6) comprises a lower suction pinhole belt (61) capable of circulating, and the visual collection device is used to capture images of the two ends of the sheath (0) and the outer surface in the longitudinal direction thereof. The fully automatic sheath inspection machine of the present invention has a stable transmission channel specially set for slender and light objects, and can determine and uniquely expose each inspection surface of the sheath in front of the inspection camera, and perform fully automatic inspection on the sheath surface and surroundings without blind spots.

The invention relates to a long-life high-precision grinding wheel moving mechanism which comprises a grinding wheel box body, an upper inner grinding wheel is arranged in the upper space in the grinding wheel box body, the grinding wheel box body is sleeved with an upper outer grinding wheel, an inner plate is arranged on a bottom plate on the grinding wheel box body, a grinding wheel hole is formed in the middle of the inner plate, and an inclined hopper is arranged on the bottom face of the inner plate. A cylindrical sliding base is arranged in a hole in the center of the inner bottom wall of the inclined hopper, a cylindrical sliding sleeve is arranged in a cylindrical sliding base hole, a disc is arranged on the flange face of the cylindrical sliding sleeve, and an outer dustproof sleeve is arranged below the disc. A sliding pair, a screw transmission mechanism, a gear transmission mechanism and a guide mechanism are separately designed, and an adjusting nut is arranged on the lower end face of a gear nut, so that the axial clearance can be adjusted after a thread pair is abraded. The device has the effect of improving the transmission precision stability of the thread pair.

This utility model discloses a leaf collection vehicle, relating to the field of urban sanitation technology. The vehicle includes a vehicle body equipped with a negative pressure trash can, a leaf collection device, a leaf collection device fixing mechanism, and a sweeping device. The leaf collection device includes a suction port, which comprises a housing and a suction port insert. The housing has a suction channel extending vertically upwards from the bottom of the housing. The bottom of the suction channel has a bottom opening, and a suction port is located on the side of the suction channel near the bottom. The bottom opening connects to and is through the suction port. A suction port insert is located at the suction port, and the insert can move towards the suction port to cover it and move away from it to expose it. The suction port can change size using its shape and structure to prevent clogging. Using this leaf collection vehicle greatly improves the efficiency of sweeping up lightly littered objects such as leaves and branches.