134results about How to "Prevent knock down" patented technology

The invention discloses a device for preventing a glass cup from falling down. The device comprises a base of a hollow structure, a groove is formed in the side wall of the upper end of the base, andthe bottom of the groove is provided with a heat conducting sheet; the lower end of the heat conducting sheet penetrates through the side wall of the lower end of the groove, one end of the heat conducting sheet located in the base is connected with an expansion block, and two first racks are disposed transversely in the base and located on the two sides of the expansion block respectively; firstconnecting rods are vertically arranged on the side walls of the upper ends of the two first racks respectively, two first sliding slots are formed in the inner wall of the upper end of the base and located above the corresponding first racks, the end, away from the corresponding first rack, of each first connecting rod is slidingly connected to the corresponding first sliding slot through a firstsliding block, and fixing plates are also vertically arranged on the inner wall of the upper end of the base and arranged away from the expansion block. By means of the principle of thermal expansionand clod contraction, airbags are inflated to clamp the glass cup to prevent the glass cup from pouring hot water to burn the skin of people.

The invention relates to a knock-down prevention base of a cup. By the aid of the knock-down prevention base, the cup is difficult to knock down when placed on smooth object surfaces. The technical scheme includes that the knock-down prevention base of the cup comprises a cup base and a sucker. A movable block is concavely arranged on the bottom surface of the cup base, the side surfaces of the concave cup base are protruded towards the center of the concave cup base to form limiting protrusions, an exhaust cone vertex is arranged in the center of the bottom surface of the cup base, a sucker accommodating hole is formed in the middle of the movable block, the sucker is fixed into the sucker accommodating hole of the movable block, an air hole support is arranged on a suction zone of the sucker and is communicated with the inside of the cup base, and a conical radial opening is formed in the upper portion of the air hole support. The knock-down prevention base has the advantages that a conical air-tight door of the sucker is controlled by the aid of a sucker principle and mechanical force of the nature; the movable block can fall, so that air in the suction zone of a lower sucker can be exhausted to form a vacuum zone, the atmospheric pressure can tightly press the sucker on the object surfaces, and accordingly a cup body which is connected with the sucker can resist lateral thrust under the effect of the atmospheric pressure and can be prevented from being knocked down.

The invention provides an underwater traffic tunnel, relates to the field of traffic bridges and tunnels, and solves the problem that offshore, in-water and underwater traffic tunnels are difficult toensure structural stability on the premise of not influencing passing ships. The underwater traffic tunnel comprises a body immersed in water, a connecting piece and a ventilation system, the body comprises a first cavity used for providing a passing space and a second cavity located at the lower portion of the first cavity, and the second cavity is communicated with the water; and the connectingpiece is connected with the body and the water bottom and used for resisting buoyancy, the ventilation system communicates with the first cavity and extends to the position above the water surface, and the ventilation system is arranged in a deformable manner so as to continuously ventilate when impacted. The body is safely immersed in water, and a ship can freely sail above the body; the secondcavity is communicated with water and is not easily overturned by seawater; the connecting piece resists buoyancy; and the ventilation system can be prevented from being damaged by external force through deformation movement, an escape system can be started in emergency, higher safety is achieved, and the influence of earth crust change on the tunnel is reduced.

A full-automatic double-layer rotary type equipment for installing iron pieces in a plastic concealed junction box is characterized by comprising a machine base, a main shaft installed on the machine base, an upper rotary table and a lower rotary table, wherein the main shaft is driven by motive power, the upper rotary table and the lower rotary table are installed on the main shaft and respectively provided with six groups of molds, long iron piece installation grooves and short iron piece installation grooves are formed in the molds, and long iron pieces and short iron pieces are arranged in the long iron piece installation grooves and short iron piece installation grooves; an upper layer long iron piece device, a lower layer long iron piece device, an upper layer short iron piece device, a lower layer short iron piece device, an upper layer feeding and blanking conveying device, a lower layer feeding and blanking conveying device, an upper layer long iron piece bending device, a lower layer long iron piece bending device, an upper layer long iron piece flattening device, a lower layer long iron piece flattening device, an upper layer exchanging device and a lower layer exchanging device are respectively arranged on the machine base around the upper rotary table and the lower rotary table. The full-automatic double-layer rotary type equipment for installing the iron pieces in the plastic concealed junction box automatically finishes all the processes, does not need manual operation, and is easy in labor, high in work efficiency and good in installation precision.

The invention discloses a medical nursing table which belongs to medical nursing facilities. The medical nursing table comprises a table leg and a table surface, and further comprises article containing grooves, wherein through holes in match with the article containing grooves are formed in the table surface; convex edges are arranged at the edges of the openings at the top ends of the article containing grooves; the diameter of each through hole is smaller than the outer diameter of each convex edge; an infusion rack is arranged at the central part of the upper surface of the table surface; the table leg comprises a tripod leg and a telescopic rod; universal wheels are respectively arranged at the tail ends of the tripod leg; the telescopic rod consists of two sections of tubular structures in a movable sleeving manner; and a fastening bolt is arranged at the connection part of the two sections of the tubular structures. The medical nursing table has the characteristics that the movement is convenient, the height can be adjusted, the practicability is high, and articles on the table surface are prevented from being dropped off.

The invention discloses a multifunctional mobile phone support which comprises a support body (1) and a supporting rod (2) hinged to the support body (1). Anti-slip layers are respectively arranged at the bottom of the support body (1) and the bottom of the supporting rod (2). The support body is divided into a left support body and a right support body. The use width of the multifunctional mobile phone support can be changed through pulling of the left support body and the right support body. The left support body and the right support body are respectively provided with a bottom bracket (5) and a front guard board (6). In addition, a left side guard board (7) and a right side guard board (7) are respectively arranged on one side of the left support body and one side of the right support body. The inner surface of the left support body, the inner surface of the right support body, the inner surfaces of the bottom brackets, the inner surface of the front guard boards, the inner surface of the left side guard board and the inner surface of the right side guard board are respectively pasted with a velvet protective layer. Hinge devices capable of carrying out angle adjustment and angle positioning are respectively arranged on hinged portions. The multifunctional mobile phone support can be used for protecting the screen of a mobile phone and preventing the mobile phone from slipping down accidentally, and can also be used as the support where the mobile phone can be transversely placed to enable a user to watch movies in the mobile phone, as a digital photo frame support, as a tablet computer support, even as a book shelf of a student and the like.

The invention relates to a dining table which comprises table legs and a table top. A menu movably connected with the table top through a connecting member is arranged on the table top, can slide back and forth along a chute on the table top and is detachably connected with the connecting member, a cleaning rod is further arranged on the table top, two sides of the cleaning rod are positioned in sliding ways of protrusions on two sides of the table top, and the cleaning rod is formed by a horizontal push shovel at the front end and a straight rod with cleaning cotton and at the rear end. The dining table has the advantages of capability of avoiding the menu from being knocked over during dining and convenience in cleaning of the table top, and is simple and practical.

The invention relates to the technical field of infusion volume self-monitoring equipment, in particular to an infusion volume self-monitoring assembly for adult ICU medical care. The infusion volumeself-monitoring assembly comprises an equipment main body, wherein a positioning plate and a cylindrical plate are fixedly connected to the inner top surface of the equipment main body from left to right; an alarm is fixedly connected to the upper surface of the equipment main body; a vertical rod is inserted into the lower surface of the equipment main body; an air bag is fixedly connected to theposition, located in the equipment main body, of the upper surface of the vertical rod; a conducting rod is made to do magnetic induction line cutting movement in a magnet, induction current is generated in a closed circuit, and therefore the alarm is powered on through the induction current, therefore, infusion is conducted to a patient more safely; and through downward movement of a reinforcingframe and insertion of a clamping pin on the left side of the reinforcing frame into a limiting groove, the reinforcing frame is limited, it is avoided that when an infusion bottle is lightened, theinfusion bottle is unstable, the reinforcing frame on the lower side of the reinforcing frame fastens the infusion bottle, and therefore the infusion bottle is prevented from being knocked down.

The invention relates to highly safe and reliable refrigeration equipment with a purification function. The highly safe and reliable refrigeration equipment comprises a main body, a water tank and a base, further comprises a stabilization mechanism and a purification mechanism, wherein the stabilization mechanism comprises a driving assembly, a movable plate and two stabilization assemblies; and each stabilization assembly comprises an air suction barrel, a piston, an air suction rod and a suction disc, the purification mechanism comprises a feeding assembly and a pushing assembly, the feedingassembly comprises a feeding box and a communicating pipe, and a first motor, a rotating disc, a rotating rod, a connecting rod and a blocking block are arranged in the feeding box. The highly safe and reliable refrigeration equipment with the purifying function is provided, the base can be adsorbed on the ground through the suction discs and a stabilization mechanism, the equipment is preventedfrom being knocked down, the damage probability of the equipment is reduced, and the safety of the equipment is improved; and water in the water tank can be purified through the purification mechanism, so that the water can be prevented from being stored in the water tank for a long time, and bacteria are bred.

A method for monitoring network camera shooting head state can realize real time monitor of local network camera shooting head by configuring camera shooting monitor program on client host with camera shooting head to carry out real time monitor to operation state of camera shooting heat and by configuring monitor management program on management host to carry out monitor on client host state.

The invention relates to a stable electric nacelle. The stable electric nacelle comprises a fixing plate, a main body and two fixing ropes, wherein a moving chamber, a level sensor, an adjusting mechanism and two fixing mechanisms are arranged in the main body; each fixing mechanism comprises a rotating unit, a pulley and a positioning unit; each rotating unit comprises a handle, a rotating plate,a fixed shaft, a turning wheel and a connecting rope; each positioning unit comprises a limiting groove, a spring, a limiting block, a fixing block and a positioning block; a clamping assembly comprises a knob, a worm and two moving assemblies; and the adjusting mechanism comprises a chute, a motor, a lead screw, an adjusting block, a limiting unit and a plurality of sliding units. According to the stable electric nacelle, through the fixing mechanism, an article can be fixed in the moving chamber, the circumstance that a paint bucket knocks over when constructors move is prevented, the construction progress is ensured, furthermore, by the adjusting mechanism, the center of gravity of the electric nacelle keeps stable when the constructors move in an existing electric nacelle, and fallingof the constructors is prevented.

The invention relates to a sickbed for the orthopedics department, in particular to a sickbed capable of preventing leg movement in the orthopedics department. The provided sickbed capable of preventing leg movement in the orthopedics department aims at achieving the technical purposes that convenience can be provided for examination and injuries can be prevented. According to the technical scheme, the sickbed capable of preventing leg movement in the orthopedics department comprises a baseplate, first sliding blocks, rotating sleeves, rotating shafts, first U-shaped supporting plates, first sliding bars, second U-shaped supporting plates, connecting plates, first nuts and the like; a guiding groove is formed in the upper portion of the baseplate and internally provided with the two firstsliding blocks, the tops of the first sliding blocks are connected with the rotating sleeves which are internally provided with the rotating shafts, the tops of the rotating shafts are connected withthe first U-shaped supporting plates, and the first sliding bars are connected to the left and right sides of the rear side face of each first U-shaped supporting plate respectively. First threaded rods rotate clockwise or counterclockwise, and the second U-shaped supporting plates move front and back through the rotating sleeves so that the sickbed can be applied to patients different in height.

The invention relates to the technical field of office supplies, and discloses a multifunctional office table which comprises a table top plate. A computer cooling mechanism and a hand warming mechanism are arranged on one side of the bottom of the table top plate, and a plant placing mechanism is arranged on one side, far away from the hand warming mechanism, the top of the table top plate. The multifunctional office table solves the problems that an office table does not have the functions of cooling a notebook computer and warming hands and feet and is not provided with a potted plant device, the multifunctional office table is provided with the table top plate, the computer cooling mechanism, a fan chamber, an exhaust cavity, a cooling fan, an exhaust hole, a temperature sensor and a chamber door, and the multifunctional office table changes the problem that when a user uses a notebook computer on a traditional office table, the notebook computer needs a cooler to perform cooling and is nor conveniently used. According to the multifunctional office table, a supporting plate is folded on one side of the table in summer, the cooling fan is turned on, the notebook computer can becooled, and on and off of the cooling fan are intelligently sensed and controlled by the aid of the temperature sensor, so that good cooling effects are achieved.

The invention discloses a self-service bottling holding device which comprises front and rear vertical oblique supports and front and rear cross rods; each of the front and rear cross rods is provided with a movable groove; the front and rear vertical oblique supports and the front and rear cross rods adjustable in height form a triangular support structure; and the front lever is lower than the horizontal position of the rear cross rod. The device is used for replacing manual bottle holding, lightens fatigue caused by the fact that bottles are held with hands for a long time, is used for nursing infants and paralytics, and can be used for simply feeding liquid and doing other work. The self-eating assisting device is suitable for computer workers, fishing enthusiasts, lazy people, game enthusiasts, athletes comprising bicycle athletes assisted by the device while driving, people who have full hands and the like.

The invention relates to a novel training hurdle. The novel training hurdle comprises an acoustic-optical alarming device, opposite type optoelectronic switches, sliding rails, two side plates, supporting bases, a battery box, a power switch, a control circuit and wiring ports. The novel training hurdle is characterized in that each side plate of the hurdle is provided with the corresponding opposite type optoelectronic switch, the corresponding sliding rail with scales and the corresponding wiring port, the opposite type optoelectronic switches can slide vertically along the sliding rails, the acoustic-optical alarming device is arranged on the top of one side plate, the battery box, the control circuit and the power switch are arranged on the supporting base and connected through wires, the opposite type optoelectronic switch on the other side plate is connected with the control circuit through the corresponding wiring port and a wire, and when an athlete cannot hurdle the height of the opposite type optoelectronic switches, each opposite type optoelectronic switches outputs a switch signal to the control circuit, and the control circuit drives the acoustic-optical alarming device to flash and give out an alarming sound. Compared with an existing hurdle, due to the arrangement of the acoustic-optical alarming device, the opposite type optoelectronic switches, the control circuit and the like, it can be avoided that the athlete knocks down the hurdle and is hurt, and the novel training hurdle is convenient to detach and store.

The invention discloses a thread stand of a sewing machine. The thread stand comprises at least two pay-off devices and connecting devices, wherein the at least two pay-off devices are respectively used for accommodating wound upper threads (12) and accommodating wound bottom threads (13); the connecting devices are used for connecting the pay-off devices and the sewing machine. By utilizing the connecting devices, the pay-off devices are installed on a machine body of the sewing machine, that is, the thread stand is installed on the machine body of the sewing machine. The thread stand is simple in structure, and is convenient to install; the existing installation mode is changed, the thread stand is close to users; threads are relatively convenient to change and adjust, and the thread stand is convenient to operate by users, and is fixedly connected so as to prevent from being knocked off effectively, and further the working efficiency is improved. The invention also discloses the sewing machine comprising the thread stand.

The invention discloses a fluorescence garbage can capable of being sleeved with a garbage bag conveniently. The fluorescence garbage can comprises a can body and a can bottom, the can body is composed of an outer can main body and an inner can main body, a can loop is formed at the opening of the outer can main body and the inner can main body, through holes are formed in the inner can main body and the can loop, and a fluorescent layer is arranged on the can loop. The through holes formed in the inner can main body and the outer can main body enable the garbage bag to be sufficiently unfolded and adsorbed on the inner can main body in a perfectly-fit mode when the garbage bag is changed, the fluorescent layer enables the garbage can to be capable of being saw at night, thus garbage can be thrown conveniently without turning on a light, and a user is prevented from knocking over the garbage can when going to a toilet. The fluorescence garbage can capable of being sleeved with the garbage bag conveniently is simple in structure and convenient to use, and has higher practicality.

The invention discloses a control method for enabling an LED lamp to flash along with music and a music rhythm flashing lamp. The control method comprises the steps that firstly, a microphone receives acoustic waves and ultrasonic waves; secondly, an ultrasonic wave detecting circuit receives ultrasonic waves sent by the microphone, and when the ultrasonic wave at a specific frequency is received, an electrical signal is generated; thirdly, a master control circuit enables a signal amplifying circuit to be closed and controls the ultrasonic wave detecting circuit to be in the dormant state at the same time; fourthly, acoustic waves received by the microphone are converted into electrical signals by the signal amplifying circuit, wherein the acoustic waves at different frequencies are converted into different electrical signals; fifthly, the master control circuit controls shining and extinguishing of the LED lamp according to the electrical samples obtained in the fourth step. By the adoption of the control method for enabling the LED lamp to flash along with music, the LED lamp can be automatically turned on through the ultrasonic wave at a specific frequency, the LED lamp can shine, be extinguished and change brightness along with change of the frequency of the acoustic wave, and therefore the purpose that the LED lamp flashes along with music is achieved.

The invention provides an anti-falling grain divider. The grain divider includes grain divider bodies arranged in parallel, the grain divider bodies are connected with the front end of a shield of a corn harvester header, and the shield is fixed on a corncob picking frame of the corn harvester header, wherein the grain divider bodies are tapered; each grain divider body includes a supporting rod, a grain dividing tip and protection plates, and each grain dividing tip is detachably arranged at the front end of the corresponding supporting rod; the front end of the shield is provided with connecting bases, the supporting rods are connected with the connecting bases, the connecting bases are internally provided with containing cavities, the supporting rods are inserted in the containing cavities, the tail end of each supporting rod is provided with a reset spring, the other end of each reset spring is connected with the inner wall of the corresponding containing cavity, and the grain divider bodies can move front and back relative to the shield. The anti-falling grain divider is simple in overall structure, the grain divider bodies and the shield of the corn harvester header are connected through the connecting bases and the reset springs, the grain divider bodies can stretch out and draw back in a reciprocating mode relative to the corn harvester header, and straw is prevented from being knocked down.

The invention discloses an air compressor main shaft bearing mounting method and an auxiliary tool. The auxiliary tool comprises a V-shaped main frame, main shaft bearings, spring locking clamps and asupport base plate; a compressor main shaft is mounted on the surface of a V-shaped port in the V-shaped bracket; a buffer rubber pad is arranged on the surface of the V-shaped port of the V-shaped bracket; the main shaft bearings are mounted at two ends of the compressor main shaft; the spring locking clamps are mounted on the outer sides of the main shaft bearings; end surface baffle plates aremounted on two sides of a V-shaped groove; the V-shaped groove is mounted on the surface of the support base plate through a movable positioning stopper; and the support base plate is mounted in an electric heating water boiling furnace. The air compressor main shaft bearing mounting method and the auxiliary tool have the advantage of low cost, and can be assembled in general air compressor use departments with implementation conditions to reduce the reciprocating transportation cost and the assembly cost of sending the compressor main shaft and the bearings to professional manufacturers or original manufacturers.

The invention discloses a dragging type height-adjustable projector rack which comprises a tray, a base plate and a connection rod. An upper connection rod of the connection rod is connected with boss threads arranged at the bottom of the tray, and a lower connection rod of the connection rod is connected with thread joints arranged on the base plate. The dragging type height-adjustable projector rack is convenient to carry and strong in adaptability, can randomly adjust the height of a projector as required, and facilitates teaching and display use.

The invention discloses a multifunctional tissue box used in a rest room. The multifunctional tissue box comprises a tissue box body and a hook, a top cover is arranged at the top of the tissue box, afixing base, a cosmetics placing groove, a cigarette placing groove and a tooth glass placing groove are formed in the surface of the top cover, the cosmetics placing groove is formed in one side ofthe cigarette placing groove, one end of the hook fixing base is adhesively connected with the wall of the rest room through adhesive, the other end of the hook fixing base is connected with a throughhole in the tissue box through the hook, and the wall face of the rest room is ensured to be attractive; tissue is placed in the tissue box, one end of the tissue extends out of the connector of thetissue box and a cover plate, saw teeth are arranged on the connector, and therefore a user takes the tissue more conveniently; as the cosmetics placing groove, the cigarette placing groove and the tooth glass placing groove are formed, the use functionality of the tissue box top cover is improved, by arranging the placing grooves, cosmetics, cigarettes and a tooth glass are separated, and it is avoided that adjacent articles are knocked down when the user takes one article above.

The invention discloses a household dustbin convenient to use. The household dustbin convenient to use includes a dustbin body, a filter plate arranged obliquely is arranged on the bottom face of theinner wall of the dustbin body, a garbage cavity is formed in the upper portion of the filter plate, a water collecting cavity is formed in the lower portion of the filter plate, the upper portion ofthe filter plate is provided with two partition plates arranged in a cross way, the partition plates divides the garbage cavity into four cavities, wherein two cavities arranged diagonally are wet garbage cavities, the filter plate on the lower portion of the wet garbage cavities is of a grid-shaped structure, the other two cavities arranged diagonally are dry garbage cavities, the filter plate onthe lower portion of the dry cavities is of a solid structure, the bottom face of the dustbin body is provided with a plurality of water leakage holes, and the lower portion of the dustbin body is provided with a water collecting clearing box. According to the household dustbin convenient to use, moisture can be filtered from wet garbage for storage separately, the condition that some garbage areprone to rapid fermentation and deterioration in a humid environment due to the fact that all garbage are stacked together is avoided, generation of peculiar smell is avoided, and relative cleanliness of the dustbin is maintained.

The invention relates to the technical field of vehicle safety accessories, and particularly relates to a vehicle-mounted emergency guide board. A front surface of an LED lamp board is provided with adynamic guide sign, and the emergency guide board is placed at the top of a vehicle during use to achieve a warning effect. The dynamic guide sign comprises an arrow sign and / or a red fork sign and / or a running water sign, and signal lamp pieces are evenly distributed on the inner surface of the dynamic guide sign. The LED lamp board is provided with a USB charging wire and an interface of the USB charging wire can be configured to three power connection modes: 1, the interface is connected with a vehicle power supply interface; 2, the interface is connected with a mobile power supply; and 3the interface is connected with a dry cell box. Potential safety hazards are reduced through a good warning effect, a driver only needs to open a guide warning board around a vehicle and connect a power source, the warning board does not need to be placed remotely, and safety accidents are reduced; the emergency guide board is suitable for various power supply modes, is particularly matched with apower supply interface of the vehicle, and can be prevented from being turned off due to power failure; and the guide board has high stability, and is prevented from being blown down by wind or beingvibrated down by passing vehicles.

The invention discloses a network cabinet production assembly line which comprises a frame body, a base and a conveying plate, wherein first electromagnetic sliding rails are arranged on both sides ofthe conveying plate; the base is mounted at one end of the first electromagnetic sliding rails through sliding blocks; hydraulic telescopic rods are mounted at both ends of the top of the base through vertical rods; clamping plates are mounted at the ends, far away from the vertical rods, of the hydraulic telescopic rods; pressure sensors are mounted at the inner middle positions of the clampingplates; a supporting seat is mounted at the middle position of the top end of the base; a driving motor is mounted at the inner bottom end of the supporting seat; a workbench is mounted at the top endof the supporting seat; and the output end of the driving motor is connected with the bottom end of the workbench through a rotating shaft. The network cabinet production assembly line disclosed by the invention is equipped with the hydraulic telescopic rods and the clamping plates, so that network cabinets of different specifications can be conveniently fixed when processed, the fixed network cabinets can be prevented from being knocked down due to the action of an external force during the conveying process, and then the network cabinet production efficiency can be improved.

The invention discloses a student multifunctional desk lamp. The student multifunctional desk lamp comprises a lampshade, lamp tubes, a vertical tube, and a pedestal; the middle part of the top of thepedestal is fixedly provided with the vertical tube; the upper end of the vertical tube is fixedly provided with a universal ball; the external side of the universal ball is connected with a universal ball housing through damping rotation connection; the lower end of the universal ball housing is connected with the lampshade; the plurality of lamp tubes are arranged on the periphery of the vertical tube in the lampshade; the internal top external periphery of the pedestal is provided with a plurality of pen containers; the middle part of the internal side of the pedestal is provided with a motor base; the motor base is fixedly connected with the pen containers through a plurality of supporting rods arranged at the periphery of the motor base; the motor base is provided with a motor; an output shaft of the motor is provided with blades; a plurality of gas vents are arranged on the vertical tube at the internal sides of the lamp tubes. The student multifunctional desk lamp is stable andreliable, is convenient to adjust, is provided with illumination zone adjusting, cooling, thermal insulation, and stationery storage functions, is convenient for students to use, and is helpful in improvement of student learning efficiency.

The invention discloses a convenient multi-layer soap box and relates to the technical field of washing utensils. The technical problems to be solved are that in the prior art, the angle and positionof the soap box cannot be conveniently adjusted, and the soap box is inconvenient to dismantle, dos not facilitate cleaning, is large in structure size and occupies use space. The adopted technical scheme is that the convenient multi-layer soap box includes soap boxes and a supporting frame. The soap boxes are placed on the supporting frame. The supporting frame includes a supporting column and abase. The lower bottom surface of the supporting column is fixedly disposed at the center of the top surface of the base and is perpendicular to the base. A cylindrical hollow sleeve is fixedly disposed at one end of each of the plurality of soap boxes, the central axis of the hollow sleeve is perpendicular to the soap box, and the hollow sleeves sleeve the supporting column. The convenient multi-layer soap box has the advantages of being small in occupied space and convenient to use, facilitating dismantling and cleaning and having multiple functions.

The invention discloses a vehicle engine oil leakage hole opening device. Through cooperative arrangement of an upper support column and a lower support column, the height of a screw rod is conveniently adjusted; through cooperative arrangement of an upper shell, a lower shell and a receiving box, recovered and discharged machine oil is convenient to fully receive; a separated structure is suitable for oil bottom shells with different model numbers; through cooperative arrangement of a guide stud, a guide hole, a limiting nut, a side plate and a first spring, the front end surface of a side bearing cover body can be tightly connected with the side surface of the oil bottom shell under the pressure of the first spring; and through cooperative arrangement of guide sleeve, a guide column, a second spring and a connecting plate, a bearing box can be tightly contacted with the lower surface of the oil bottom shell. According to the set height of a sealing bolt, the distance of the side bearing cover body consisting of the bearing box, the upper shell and the lower shell can be adjusted, so that different vehicle engine oil bottom shells are adapted to, the utilization rate is increased,the use is convenient, and the structure is simple.