274results about How to "Prevent spillage" patented technology

The utility model discloses an alumina powder conveying device which comprises a conveying frame, the top end of the conveying frame is fixedly connected with a stock bin, the inner side of the bottom end of the conveying frame is fixedly connected with a sliding frame, the conveying frame is provided with a transfer frame at the position of the sliding frame, the bottom end of the stock bin is connected with a penetrating pipe in an inserted mode, and the bottom end of the penetrating pipe is slidably connected with a movable pipe. An inlet pipe is inserted into the top end of the transfer frame, a flow limiting mechanism is arranged on the inner side of the movable pipe, an ejector rod is fixedly connected to the inner side of the inlet pipe through a small rod, the flow limiting mechanism comprises a connecting frame fixedly connected to the inner wall of the movable pipe, a baffle is slidably connected to the bottom end of the connecting frame, and a first elastic part is arranged between the baffle and the connecting frame; the flow limiting mechanism further comprises a blocking frame fixedly connected to the inner wall of the movable pipe, the top face of the blocking frame is designed to be inclined, a sealing gasket is bonded to the top face of the blocking frame, and through cooperation of the structure, it can be guaranteed that the situation that the aluminum oxide powder overflows in the falling process can not happen, and therefore waste of the aluminum oxide powder is avoided.

The invention relates to the field of flush toilets, in particular to an intelligent closestool with a urine sample detection function. Comprising a closestool body, a penetrating hole is formed in the front end in the closestool body, and a conical plate is rotationally arranged at the lower end of the penetrating hole through a motor and can open the penetrating hole to allow midstream urine to penetrate through when rotating; an expansion plate for preventing urine from escaping is arranged at the lower end of the cone plate, a pressure sensor is arranged at the upper end of the cone plate, and an infrared sensor is arranged above the through hole; a urine guide mechanism is arranged on the side, away from the through hole, of the expansion plate and comprises a drainage arc plate fixedly connected with the closestool body, one end of the drainage arc plate is in movable sealing connection with the expansion plate, and a sampling pipe with two through ends is arranged below the other end of the drainage arc plate; the sampling pipe is coaxially provided with a sampling mechanism, the sampling mechanism comprises a plug which is in dynamic sealing connection with the inner wall of the sampling pipe, and the plug is coaxially provided with a probe for analyzing urine. The device can accurately collect midstream urine samples, realizes household automatic urine detection, is high in detection precision, and can effectively avoid sample pollution.

A kind of manual control type point glue machine and point glue method, the point glue machine includes: pressure vessel, support, two-component point glue valve being installed in support, two pipelines being communicated two glue inlets of two-component point glue valve and the pressure vessel, glue nozzle being combined two glue outlets of two-component point glue valve, foot switch, with two-component point glue valve and foot switch electric connection, controller for controlling two-component point glue valve and switch between three kinds of states of double pass, single pass and closed.The method includes: controlling two-component point glue valve in double pass state, and quickly glue to product;After quick glue, control two-component point glue valve in single pass state, and slowly glue to the product.Waves and bubbles generated by early quick glue can be eliminated by later slow glue.

The utility model discloses a dozer blade structure, which relates to the technical field of dozer blades and comprises an arc-shaped panel, a scraper knife is mounted at the bottom end of the arc-shaped panel in a matched manner, side baffles are fixedly mounted on two sides of the arc-shaped panel, a mounting groove is formed in the upper end of the arc-shaped panel, a connecting frame is mounted in the mounting groove in a matched manner, and the connecting frame is fixedly mounted on the arc-shaped panel. A connecting plate is fixedly installed at the top end of the convex face of the arc-shaped panel, and a clamping table matched with the connecting plate is arranged at the rear end of the connecting frame. According to the design scheme, through the design that the side baffles are installed on the two sides of the arc-shaped panel, the side baffles extend towards the concave face side of the arc-shaped panel, and a box-shaped structure is formed between the side baffles and the arc-shaped panel, so that materials are prevented from overflowing towards the two sides, the road leveling effect is improved, and the road leveling efficiency is improved. And the connecting frame is connected with a mounting frame at the rear part of the trailer through a second connecting pin, so that the convenience in disassembly and assembly of the dozer blade is improved, and daily use of a user is facilitated.

A mixing device for safety production of vitamin C products relates to the technical field of stirring devices and comprises a mixing tank, an inlet pipe communicated with an inner cavity of the mixing tank is rotatably arranged at the top of the mixing tank, a feeding cylinder is rotatably inserted into the upper end of the inlet pipe, and a flap valve is rotatably arranged in the feeding cylinder; the lower end of the inlet pipe is fixedly connected with a base plate, a supporting ring is coaxially arranged below the base plate, a plurality of material distributing rods are fixedly connected between the outer wall of the base plate and the upper surface of the supporting ring in a surrounding mode, a material falling channel is formed through the area between the adjacent material distributing rods, and the width of the material falling channel is gradually increased from the center to the outer side. According to the utility model, the problems in the prior art that in the mixing process of lutein ester and vitamin C, under the action of a stirring structure, powder is easy to raise and diffuse in the surrounding environment, so that the surrounding environment is influenced, and potential safety hazards are caused to operators in the working environment are solved.

The utility model relates to the technical field of grouting pipe, concretely to a foundation pit plugging grouting pipe, including the pipe body, the surface fixed mounting of pipe body has the connecting pipe and the pipe sharp head, the surface of pipe body is established grouting hole, through setting up the sliding cover screw rod, the sliding cover, the pressing plate screw rod, the filter plate, the pressing plate, the pressure -bearing plate, utilize the synergies of these structures, the sliding cover screw rod drives the sliding cover to slide, the sliding cover is closely combined with the pipe body when closing, prevents the slurry overflow to block the external impurity infiltration, when opening, it is convenient for the filter plate to take out quickly and clean or replace, the filter plate is closely combined with the pressure -bearing plate by the pressing plate screw rod, the filter plate provides stable support with the help of pressure -bearing plate, avoids the filter plate to shift under the slurry impact, also can let the filter plate accurate filtration particle impurity in the slurry, prevents the pipeline blockage, guarantees the grouting pressure stability and grouting passage smooth, has simplified the equipment maintenance process, has promoted the efficiency and reliability of foundation pit plugging grouting construction.

The utility model relates to a stationary shaft shoulder stirring head which comprises a shaft shoulder and a stirring head coaxially butted with the tail end of the shaft shoulder, the stirring head is of a circular truncated cone structure, the flaring end of the stirring head is coaxially butted with the tail end of the shaft shoulder, and a threaded groove is formed in the annular wall in the axial direction of the stirring head; the stirring head of the circular truncated cone structure is adopted, the design of the axial thread grooves in the annular wall can play a spiral flow guide role on softened metal materials, the problem of material overflow caused by a traditional plane shaft shoulder is effectively avoided, the welding seam filling rate and the joint compactness are remarkably improved, and defects are reduced. Through the synergistic effect of the circular truncated cone structure and the threaded groove, stress is dispersed through the continuous and smooth geometrical shape, the problem of stress concentration caused by multi-groove spaced arrangement of involute grooves in the prior art is solved, meanwhile, the design that the flaring end of the stirring head is embedded into the shaft shoulder ring groove enhances the connection stability, vibration abrasion under high-speed rotation is reduced, and the stirring effect is improved. Durability of the stirring head is remarkably improved, and use cost is reduced.

The utility model belongs to the technical field of combustor, specifically disclose a kind of fire divider and combustor. Fire divider includes base and fire divider upper cover. Base is annular, and first annular cavity with upper end opening is arranged on base;Fire divider upper cover is provided with outer ring fire hole, second annular cavity, fire leakage prevention structure and turbulence structure, second annular cavity is lower end opening structure, outer ring fire hole is communicated with second annular cavity, fire divider upper cover is assembled on base and first annular cavity and second annular cavity form mixing chamber jointly, fire leakage prevention structure extends into first annular cavity and with the inner wall of first annular cavity abuts, along the radial projection of fire divider, the projection of fire leakage prevention structure covers the projection of the connecting place of base and fire divider upper cover;Turbulence structure is arranged in fire leakage prevention structure and can turbulence to the gas in mixing chamber. The utility model makes that gas and air in mixing chamber are more uniform, and can avoid the cooperation surface between fire divider upper cover and base and take place fire leakage.

This invention relates to the field of injection mold technology, and particularly to a hot runner linked hot nozzle, comprising a hot runner plate, a support cylinder, a hot nozzle, a movable contact mechanism, a heat conduction mechanism, and a limiting and fixing mechanism. This invention solves the following problems existing in hot runner hot nozzles: the rigid contact between the hot nozzle and the gate is easily subjected to impact and wear during the opening and closing of the moving and fixed molds, leading to overflow when injecting molten plastic; after injection, a small amount of molten plastic remains between the injection end of the hot nozzle and the gate, easily causing gate blockage, and injection into the mold cavity can lead to product defects; this invention can control the contact between the hot nozzle and the gate to only occur during molten plastic injection, preventing rigid contact between the hot nozzle and the gate, effectively avoiding overflow caused by damage to the contact surface of the hot nozzle and the gate; this invention can conduct the heat of the molten plastic to the inside of the hot nozzle and the molten plastic between the bottom of the hot nozzle and the gate for heat preservation, preventing it from cooling and solidifying.

This invention relates to the field of electrolyte filling technology, and specifically discloses a vacuum filling machine for electrolyte filling in lithium battery processing. The machine includes a worktable, a transmission component fixedly connected to the inner side of the worktable, a feeding component slidably connected to the inner side of the worktable, and the inner side of the feeding component fixedly connected to the output end of the transmission component. A bracket is fixedly connected to the top of the worktable. In this vacuum filling machine for electrolyte filling in lithium battery processing, the scraper, relying on a contact shaft, a first spring, and an arc-shaped guide plate, forms an elastic floating structure. This allows it to closely conform to the side contour of the filling needle, scraping away waste liquid and impurities without dead angles, while avoiding rigid contact that could scratch the needle. The arc-shaped design of the inner side of the guide plate directs and collects the scraped waste liquid, preventing random splashing and structurally reducing waste liquid residue and crystal accumulation. The scraped waste liquid can be quickly drawn into the collection mechanism by negative pressure through the slot plate and connecting pipe.

This utility model provides a vibrating sieve device for preparing dry powder food standard samples, relating to the field of food standard sample sieving technology. It includes: a protective shell with an openable and closable first opening at its top; a base mounted on a bottom plate inside the protective shell, with a support component connected above the base and a vibrating component inside the base; a sieving component positioned above the support component; a discharge component positioned below the sieving component; and a collection container positioned above the base, with a flexible cylindrical connecting part at its upper end and a drawstring structure at its upper end, allowing for detachable connection to the discharge component via the drawstring structure. This invention solves the problem of powder scattering caused by traditional sieving methods such as manual sieves and open vibrating sieves in the prior art.

The invention relates to the technical field of continuous casting steel plate polishing, in particular to a continuous casting steel plate polishing self-cleaning mechanism and a using method thereof.The continuous casting steel plate polishing self-cleaning mechanism comprises a storage box, the inner wall of the storage box is rotationally connected with a cleaning wheel, the top end of the storage box is fixedly connected with a conveying frame, and the inner wall of the conveying frame is rotationally connected with a conveying belt; fine scrap iron on the surface of a steel plate is preliminarily adsorbed through magnetic force, flying dust is reduced, by means of the X-shaped staggered winding transmission belt, reverse rotation of the cleaning wheel and the transmission belt is achieved, reverse scraping and sweeping are conducted by going deep into groove dead angles of protruding blocks, adsorbed waste is removed in real time, and waste accumulation is prevented from affecting transmission; the waste is naturally guided to the center of the drawing box by utilizing the inclined material distributing partition plate and the flow guide gap through gravity, the collecting efficiency is high, no dead angle exists, the jacking block automatically pushes the material distributing partition plate to seal the flow guide gap at the moment that a worker pulls out of the drawing box to clean the waste, and the problem that the waste is prone to scattering from the gap to cause secondary pollution in the ash cleaning process is solved.

The application discloses a kind of visual self-compacting grouting design method and system mould of fabricated structure, belong to the technical field of fabricated structure construction.For the defects such as traditional grouting of fabricated structure invisible, monitoring difficult, easy to cavity segregation and grout waste, the application develops a kind of whole process visible, passive self-compacting grouting method and system mould.The mould is composed of transparent template main body and self-adjusting closing mechanism, and the transparent template includes fixed template and automatic grouting plate, which are connected by tooth groove to form a sealed grouting cavity.The closing mechanism is linked by spring pressure plate, spring group, steel wire and positioning pulley group, and is automatically and accurately closed by the driving of grout pressure and self-weight based on grout pressure and self-weight.The application establishes the quantitative relationship among spring compression amount, grouting pressure and closing angle based on dynamic response analysis, and proposes a new grouting control method, and the mould is designed in a modular way, which can improve construction quality, ensure structure safety and reduce construction cost.

The invention provides a microstructure electrode capable of realizing solder confinement infiltration and a preparation method thereof, a radial microgroove structure, an annular microgroove structure and a parallel line microgroove structure are sequentially engraved on the surface of the electrode to form functional combinations of different microstructures, and the microstructure electrode capable of realizing solder confinement infiltration is obtained. Fine machining of the microstructures on the surface of the electrode and functional combination of different microstructures are adopted, the wettability of the welding flux is enhanced through the radial microgroove structures in the center area, the spreading shape of the welding flux is controlled through the annular microgroove structures in the edge area, overflowing of the welding flux is restrained, and diffusion of the welding flux is guided through the parallel line microgroove structures in the connecting area. Therefore, through mutual combination and accurate processing of the microstructures with different functions, confinement infiltration of the welding flux on the surface of the electrode is realized, and the welding quality of the electronic element and the electrode is optimized.

The utility model discloses an industrial solid waste residue recovery device, which belongs to the technical field of waste residue treatment and comprises a conveying mechanism, a grinding mechanism and a metal waste residue transfer mechanism. Wherein the material conveying mechanism is arranged on the bottom plate, and the bottom plate is arranged on the ground; the crushing mechanism is erected above the material conveying mechanism and is used for crushing industrial solid waste residues to be recycled; the metal waste residue transferring mechanism is erected above the material conveying mechanism and used for transferring metal waste residues into a metal waste residue collecting basket, and the metal waste residue collecting basket is arranged on the bottom plate; by means of the design, the recovery rate of metal waste residues can be effectively increased, and the waste residues can be prevented from deviating and scattering in the treatment process.

The utility model provides a kind of floating object removing equipment for sewage treatment, including grating conveyor, one end of the grating conveyor is provided with bottom backing plate, the other end of the grating conveyor is equipped with two mutually symmetrical conveyor end plate, transmission roller is rotatably installed on the bottom backing plate, the grating belt of the grating conveyor is driven and wound on the surface of transmission roller, the both ends of the bottom backing plate are respectively fixedly connected with height-adjusting plate;The utility model can flexibly adjust the height and angle of the device according to actual demand by setting through the cooperation of height-adjusting plate and mounting guide rail plate, so as to adapt to different sewage treatment scenarios.In addition, the design of positioning screw further enhances the stability of the device, keeps accurate position control during the sliding process of the extension slide, avoids the deviation problem caused by vibration or external force, and improves the flexibility of the equipment.

The utility model relates to tobacco primary processing equipment, especially a kind of moisture regainer moisture discharge screen cleaning device.The moisture regainer moisture discharge screen cleaning device includes brush shaft, brush roller and at least one group of brush assembly. Among them, the both ends of brush shaft are used to install on rack. Brush roller is sleeved on brush shaft and is connected with brush shaft, and the outer periphery of brush roller is provided with mounting groove. Brush assembly includes base, brush screw and V-shaped brush, V-shaped brush is spirally wound on brush screw, brush screw is embedded in base, and base is detachably connected with mounting groove. The moisture regainer moisture discharge screen cleaning device can effectively solve the problem of moisture discharge screen blockage, improve production efficiency and product yield, and reduce safety hazards.

The utility model relates to the technical field of vibration motors, and discloses a vertical linear vibration motor, which comprises a cylindrical shell with an opening at one end and a plate-shaped cover body, the shell and the cover body are buckled to form an accommodating space, the shell comprises a side wall, and the free end of the side wall is provided with a first notch; the side wall is vertical to the cover body; the cover body comprises a circular body, a supporting part extending from the body in parallel and an annular protruding part protruding from the inner surface, close to the periphery, of the body, the protruding part is provided with second notches corresponding to the first notches, the first notches are located on the outer sides of the second notches at intervals, the supporting part corresponds to the second notches, and the side wall is fixedly connected between the protruding part and the edge of the body. The maximum outer diameter of the side wall is equal to the outer diameter of the body, a gap is formed between the side wall and the convex part, and a first sealant part is coated in the gap. The vertical linear vibration motor is high in structural stability, good in sealing performance and good in vibration performance.

The utility model discloses a traditional Chinese medicine decoction piece processing and powder screening device which comprises a powder screening chamber, a feeding assembly is installed on the top of the powder screening chamber and comprises a spiral conveyor fixedly installed on the outer wall of the top of the powder screening chamber, the spiral conveyor is arranged in a horizontal state, and an outlet of the spiral conveyor is arranged towards the powder screening chamber. A discharging pipe is rotationally connected to the top of the powder screening chamber, the middle part of the discharging pipe is obliquely arranged, the discharging pipe rotationally sleeves an outlet of a spiral conveyor, a funnel-shaped storage hopper is arranged on one side of the top of the spiral conveyor, a bevel gear II is coaxially fixed to one end of a spiral rod in the spiral conveyor, and a bevel gear II is coaxially fixed to the other end of the spiral rod in the spiral conveyor; by arranging the feeding assembly, the feeding channel can be blocked through raw materials, dust is effectively prevented from escaping outwards, the positions of powder can be distributed, the powder can be screened more quickly, and the situation that the powder is accumulated at one position and influences the screening efficiency is avoided.

The utility model relates to house demolition dust prevention technical field, and disclose a dust cover for house demolition, including cover and adjustable support frame, the outside of adjustable support frame is equipped with cover, the cover is connected with adjustable support frame through the cooperation of rope or roller, and adjustable support frame whole presents hollow rectangular frame, adjustable support frame bottom is equipped with four main rod of symmetry distribution, two adjacent main rod bottom are equipped with cross bar no.

The utility model relates to the technical field of color printing mulch production, especially for a kind of plastic extruder energy-saving type heating cover for color printing mulch production, including heating cover body, heating cavity is arranged in the heating cover body, two fixed plates are fixedly connected in the right part of heating cover body upper end, two the heating mechanism of fixed plate inside common fixed connection has.The utility model discloses a kind of plastic extruder energy-saving type heating cover for color printing mulch production, by the synergic cooperation of heating fan, air inlet pipe, shunt pipe and connecting pipe, hot air is transported to the multiple heating pipes that equidistantly distribute along plastic extruder length, then, the air outlet of annular array distribution on extruder outer surface in heating pipe is evenly sent out, wherein the combination design of annular array air outlet and equidistant heating pipe, can ensure that hot air covers plastic extruder outer surface comprehensively, constructs the heating environment of high uniformity, can shorten the preheating time after extruder start, improves energy utilization efficiency.

The utility model provides a mud guide device between casing for overwater rock -embedded pile platform, relate to mud field, including adjustment mechanism, the outer wall fixed connection of adjustment mechanism has a group of connecting mechanism, adjustment mechanism includes the floating plate, the top fixed connection of floating plate has first box body, in the utility model, through the bevel gear drive structure in adjustment mechanism, and cooperate the linkage of screw rod and lifting column, can adjust the height of flow guide pipe flexibly, the outlet height of different mud production casing in steel platform bored pile construction is adapted accurately, in order to carry out flow guide subsequently, effectively solve the height mismatch problem between mud production casing outlet and device entrance under the steel platform bored pile construction scene, the concrete block of floating plate bottom helps reduce the overall gravity center of device, in the overwater environment where steel platform is, can significantly reduce the shaking and overturning risk brought by wind wave and current, guarantee the safety of mud flow guide operation when steel platform bored pile construction.

This utility model discloses a pad structure for installing an electric water heater and an electric water heater. The pad structure includes a mounting part located between a bracket and a housing; a support part connected to the mounting part and located on one side of the mounting part; a first positioning hole formed on the exterior wall bracket, and a second positioning hole formed on the housing; fasteners pass through the first and second positioning holes to fix the exterior wall bracket to the housing; a recessed part is formed on the support part at a position corresponding to the fastener, the opening of the recessed part facing the second positioning hole, and the bottom of the recessed part being closed, the recessed part being used to accommodate the fastener. When the fastener is installed, the fastener will not exert force on the pad structure, and no gap will be formed between the pad structure and the housing; the foaming material will not enter the recessed part, avoiding foaming material overflow, which is beneficial to improving the heat preservation effect of the electric water heater.

The utility model discloses a film sticking machine and a film sticking system which are applied to the field of semiconductor packaging, a film sticking platform is connected with an x-direction movement module, so that the x-direction movement module drives the film sticking platform to move in the x direction during working, and a material grabbing mechanism is arranged on one side of a film sticking mechanism; the film pasting mechanism comprises a film pasting device, a dust removal device located on the side, facing the grabbing mechanism, of the film pasting device, and an air blowing device. The film pasting device comprises a roller carrier, an air supply channel is arranged in the roller carrier, an air outlet is formed in the surface, facing the roller, of the roller carrier, an air inlet is formed in the periphery of the roller carrier, the air supply channel is connected with the air inlet and the air outlet, an air outlet nozzle of the air blowing device faces the air inlet, and the air blowing device at least can heat air in the air blowing device. The air blowing device can blow hot air into the roller carrier so as to heat the film attached to the surface of the chip. By heating the film, the bonding strength between the film and the chip frame can be effectively improved, and the polyester material is prevented from overflowing after plastic packaging.

The utility model relates to the field of pipeline cleaning and dredging, in particular to a drainage pipeline cleaning and dredging device which comprises a body, and one end of the body is bent downwards and connected with a plug. A piston assembly is movably arranged in an inner cavity of the main body, the piston assembly can reciprocate in the side wall direction of the main body, and the piston assembly and the side wall of the main body are arranged in a sealed mode; the side, deviating from the plug, of the piston assembly is connected with one end of a pull rod, an end cover is arranged at the other end of the body, a retaining hole is formed in the center of the end cover, and the other end of the pull rod penetrates through the retaining hole, extends to the outer side of the body and is connected with a push-pull handle. A second vent hole is formed in the end cover; an operator holds the push-and-pull handle to repeatedly push and pull the push-and-pull handle to drive the piston assembly to reciprocate in the main body, so that drawing negative pressure and forward pushing positive pressure are alternately formed on the two sides of the piston assembly to act in a blocked pipeline, and therefore blockages in the pipeline are cleaned and dredged, and the whole structure is simple, light, portable and convenient to use. An operator can operate and use the device without professional dredging skills.

The utility model relates to the technical fields of ammonia fuel ship, specifically relates to a kind of ammonia fuel double ear can ship, including hull, deck, saddle and double ear fuel tank, deck is located at the top of hull, and hull and deck are enclosed into isolated cabin, saddle and double ear fuel tank are located in isolated cabin, saddle is fixed on hull, double ear fuel tank is installed on saddle, further include nitrogen generator, nitrogen generator inside has air compressor and drying unit, nitrogen generator is sent dry air to isolated cabin by dry air pipeline, isolated cabin side is connected with air supply pipeline, other side is connected with exhaust pipeline, dry air pipeline, air supply pipeline and exhaust pipeline are all provided with dew point sensor, nitrogen generator is arranged between air supply pipeline and exhaust pipeline, air supply pipeline and exhaust pipeline are all equipped with electrically-operated shut-off air valve. Dry air is sent to isolated cabin by dry air pipeline, effectively avoid the safety hazard caused by humid air into cabin to gas storage tank.

The utility model provides a stamping die and quick dismantlement structure, including: guide pillar subassembly and guide sleeve, the guide pillar subassembly is installed at the four corners of lower die holder top, guide pillar subassembly includes the butt joint screw that is used for quick dismantlement, quick dismantlement screw and the guide pillar body below the quick dismantlement screw form an integral structure, the upper die holder is provided above the lower die holder, and the upper die holder is provided with the guide sleeve. The upper die base is provided with a plurality of butt joint screw rods, four mounting grooves are formed in four corners of the bottom of the upper die base, each mounting groove is internally provided with a guide sleeve, and the bottom of each guide sleeve is provided with an embedding ring, compared with the prior art, the guide pillar assembly and the guide sleeves are arranged, and the guide pillar body is rotated to drive the butt joint screw rods to be separated from the interiors of the butt joint grooves; the guide column assembly can be quickly locked and taken down, then a flat-head screwdriver is clamped into the quick-release clamping grooves in the front position and the rear position of the inner side of the embedding ring, the embedding ring is rotated in the reverse direction, accordingly, the guide sleeve is driven to be disengaged from the interior of the mounting groove, and the final effect is that the disassembly efficiency of the guide column assembly and the guide sleeve can be remarkably improved.