113results about How to "Prevent accidental slipping" patented technology

The invention discloses an electronic product placing frame with a damping effect. The electronic product placing frame comprises a fixing base, a first groove is formed in the upper surface of the fixing base, two symmetric second grooves are formed in the inner side wall of the first groove, a sliding rod is fixedly connected inside each second groove, and a sliding ring matched with the corresponding sliding rod sleeves the outer surface of each sliding rod. According to the electronic product placing frame with the damping effect, sliding grooves are formed and sliding blocks are used cooperatively so that the two ends of an elastic plate can be effectively moved, and impact force borne by the elastic plate is buffered; a third spring is arranged so that stretching of the elastic platecan be effectively limited, and then the effect of relieving the impact is achieved; the elastic plate is arranged and a first spring and a second spring are cooperatively arranged, so that the buffering force of a first fixing plate is greatly reduced, the stability of a second fixing plate is improved, and the problem that an existing electronic product placing frame is poor in damping effect is solved.

The invention provides a multifunctional assistive device for lower limb rehabilitation training, comprising a moving part, a lifting part and a seat part, wherein the lifting part is installed on the moving part; and the seat part is installed on the lifting part. The multifunctional assistive device for the lower limb rehabilitation training is simple to operate, convenient to use, and people-oriented; based on ergonomics theories, rehabilitation training and daily living activities are flexibly combined together in an assistive way; a user can perform corresponding actions according to needs without the help of other people, so that a sufferer achieves the best assistance and rehabilitation training effect at the psychological and physical aspects; and therefore, the living quality of the lower limb disabled is effectively improved.

A load detector 1 is provided with a base plate portion 2 to be disposed on a bed installation surface 55, a leg disposing plate portion 13 on which a caster 51 as a leg portion of a bed is to be disposed, the leg disposing plate portion 13 being provided at a tip end portion of a cantilever portion 7 supported generally horizontally in a state in which the leg disposing plate portion 12 is away from the bed installation surface 55, and a distortion detection sensor R attached to the cantilever portion 7, the distortion detection sensor R detecting a distortion of the cantilever portion 7 and outputting a signal to be used to detect a bed load.

The invention discloses anti-loosening cutting equipment for aero seat machining and a cutting method of the cutting equipment, and relates to the technical field of aero part cutting. The anti-loosening cutting equipment comprises a fixing plate; two symmetrical fixing rods are fixedly connected to the bottom face of the fixing plate; a frame is placed below the fixing plate, and the bottom facesof the two fixing rods are both fixedly connected with the upper surface of the frame; a cutting mechanism is installed in the frame, and a clamping mechanism is installed below the cutting mechanism; and the cutting mechanism comprises a motor, a first belt wheel, ports, a supporting plate, a first conveying belt, fixing columns, a cutting sheet, a first rotary shaft, a first bearing and a connection plate located in the frame. According to the anti-loosening cutting equipment for aero seat machining and the cutting method of the cutting equipment, clamping blocks can move leftwards and rightwards, the to-be-cut material clamping function is achieved, the anti-loosening advantage is realized, the situation that cutting is not in place due to shaking of a to-be-cut material is prevented,and the cutting machining efficiency is improved.

A mine grouting anchor cable supporting method comprises the steps of manufacturing a grouting anchor cable tie, wherein the grouting anchor cable tie is composed of multiple anchor cable bodies, a conical grouting stopping plug, a tray, a lock, an end anchor grouting stopping plug, an anchor cable fixing frame, a tightening ring and the like. An anchor cable body comprises an end anchor grouting anchor cable body, a full-anchor grouting anchor cable body and an exhaust grouting anchor cable body, and the three grouting anchor cable bodies are combined to replace a common anchor cable body; 2, installing and supporting the grouting anchor cable tie, wherein the end anchor grouting stopping plug is sleeved with the end anchor section of the anchor cable tie, the grouting anchor cable tie is fed into a drilled hole, a barb hook hooks the wall of the hole, and the conical grouting stopping plug, the tray and the lock are sequentially installed; grouting of the end anchor section is performed by means of the end anchor grouting cable body, and air is exhausted through the full-anchor grouting anchor cable body; after grouting of the end anchor section is solidified, the lock is used for tensioning and pre-tightening the anchor cable tie; the full-anchor grouting anchor cable body is used for performing grouting on the full anchor section, and the exhaust grouting anchor cable body is used for exhausting air. The method is applicable to ultra-soft cracking and deep high stress roadway supporting, and can achieve ultra-long deep strong anchoring. The cable body is provided with a core tube so that end anchoring, full-anchoring grouting and air exhausting can be achieved, and construction is greatly simplified.

The invention discloses a multifunctional rust-removing and paint-spraying robot for an oil tank, and aims to solve the defects that rust-removing and paint-spraying operation for the oil tank is low in working efficiency, is great in labor intensity, has potential safety hazards, is not good in rust-removing effect, and generates relatively great dust in a rust-removing process. The multifunctional rust-removing and paint-spraying robot comprises a bracket, wherein a plurality of drive wheels are mounted at the lower end of the bracket; a magnetic absorption block is mounted on the bracket; two elastic rail rods which are arranged at equal distance are arranged below the bracket; regulating mechanisms used for regulating positions and radians of the elastic rail rods are connected between the elastic rail rods and the bracket; a bottom plate can be movably connected between the two elastic rail rods along the elastic rail rods; a brush disc is mounted below the bottom plate; a plurality of spray heads are mounted on the side edge of the lower surface of the brush disc; a paint storage tank is mounted on the bracket; paint spraying tubes are connected between the spray heads and the paint storage tank; a dust collector and a ring-shaped dust collecting cover are connected on the bottom plate; the dust collecting cover is close to the edge of the brush disc; and a plurality of dust collecting tubes which are connected to the dust collector communicate with the dust collecting cover.

The invention discloses a medical examination and treatment device for otolaryngology department, which mainly comprises a base, a seat, a support assembly, a head fixing assembly, a treatment assembly, a control device and a power supply. The seat is arranged on the base, a telescopic cylinder is arranged at the connection between the seat and the base, and a restraining band is arranged on the seat. The support assembly comprises a telescopic column and a support beam; the head fixing assembly comprises an upper fixing support and a lower fixing support, and the treatment assembly comprisesa drug delivery tube, a drug storage tube and a driving device. The control device comprises a controller, a remote controller and a processor. The controller is connected with a telescopic cylinder and a telescopic column, and a remote controller and a processor are connected with the controller, a display area is arranged on the remote controller, and the power supply is provided for the telescopic cylinder and the telescopic column; the invention has simple structure, can effectively check and treat the ear canal of a patient, and is suitable for a large number of popularization.

The invention discloses an antiskid goods shelf. The antiskid goods shelf comprises a goods shelf body, cross beams, antiskid strips, shelf boards and antiskid circular pads. The cross beams are horizontally fixed on the front side and the rear side of the goods shelf body, and at least four layers of cross beams are arranged. The antiskid strips are fixed on the surfaces of bearing mechanisms on the inner sides of the cross beams. The antiskid circular pads are arranged at the bearing parts of the bottoms of the shelf boards, the antiskid circular pads are connected with the bearing mechanisms on the inner sides of the cross beams, the antiskid circular pads are evenly distributed on the upper surfaces of the shelf boards, and the number of the antiskid circular pads is at least thirteen. By the adoption of the mode, the antiskid goods shelf is additionally provided with the antiskid strips and the antiskid circular pads according to the defect that the goods shelf cannot achieve an antiskid effect, the friction between the shelf boards and the cross beams and the friction between the shelf boards and goods are well increased, the goods can be prevented from sliding accidentally, the safety of the goods is greatly guaranteed, and the stability of the goods shelf is improved.

The invention particularly relates to a magnetic separator comprising a magnet (3), a feed port (5), a stand (1), a fixed shaft (2), the magnet (3), a rotary drum (4), the feed port (5), a motor (7), a first discharge port (8) and a second discharge port (9), wherein the feed port (5) is positioned at the top end of the stand (1); and the first discharge port (8) and the second discharge port (9) are positioned at the lower end of the stand (1). The fixed shaft (2) is fixedly connected with the stand (1), the fixed shaft (2) is connected with the rotary drum (4) by a bearing, the magnetic (3) is positioned between the rotary drum (4) and the fixed shaft (2) and is connected with the fixed shaft (2), a power output end of the motor (7) is connected with a power input end of the rotary drum (4), a section of the magnet (3) is a sector magnet extending to the first discharge port (8) from the feed port (5), and the second discharge port (9) is positioned on the rear side of the sector magnet. By utilizing the magnetic separator, iron impurities can be automatically cleared, and the magnetic separation effect is good.

The invention discloses an electric power overhauling tool which comprises a herringbone ladder, an operating platform, a fixing device used for fixing the herringbone ladder, and a protection device for preventing an operator from accidentally sliding down, wherein the operating platform, the fixing device and the protection device are arranged on the herringbone ladder; a tool kit and barrier cloth used for keeping out of the sun or rain are arranged on the operating platform. According to the invention, the fixing device is used for fixing the herringbone ladder, a special ladder is not needed, and manual labor is saved, so that the herringbone ladder is reliably fixed. According to the operating platform, tools can be placed on the operating platform by an operator, overhauling operation can be performed on the operating platform, and the overhauling operation of the operator is conveniently realized. According to the protection device, the operator is prevented from accidentally sliding down during overhauling, and the overhauling safety is improved. According to the barrier cloth, the operator can be prevented from being exposed to the sun and rain during field overhauling, the operating environment is optimized, and the labor injuries of the operator can be reduced.

The invention discloses a culture device and a culture method of a slow-release aerobic strain, and belongs to the technical field of strain culture. The culture device of the slow-release aerobic strain comprises a slow-release feeding mechanism and a culture bottle, wherein the culture bottle comprises a bottle body; the top end of the bottle body is in threaded connection with a matched bottlecap; a bottle plug is fixedly connected onto the inner wall of the top of the bottle cap; two feeding pipes in symmetrical arrangement are fixedly arranged inside the bottle cap; the feeding pipes penetrate through the bottle cap and the bottle plug and are communicated with the inside of the bottle body; the top end of each feeding pipe is fixedly connected with a connecting end opening; a positioning rod is fixedly connected onto one side of the back part of the bottle body; the slow-release feeding mechanism comprises a support plate; a driving motor is fixedly arranged at one side of the front side of the support plate; and a circular disc is fixedly connected onto the output end of the driving motor. The culture device and the culture method have the advantages that in the culture process, along with the swinging of the culture bottle, culture media can be automatically and intermittently added into the culture bottle; the swinging of the culture bottle does not need to be stopped; the labor is saved; and the culture efficiency is improved.

The invention discloses a streetlamp convenient to overhaul. The streetlamp convenient to overhaul comprises a lamp pole, an installation frame and a lamp head, wherein the lamp head is fixedly connected with the installation frame; the lamp pole is a hollow cylinder; a sliding block is arranged in the lamp pole, is a hollow cylinder and can move vertically in the lamp pole; a linear opening is formed in one side of the lamp pole, and the installation frame penetrates through the linear opening and is fixedly connected with the sliding block; a pulley is arranged at the upper end inside the lamp pole; a winch is arranged at the lower end inside the lamp pole; a locking chain is arranged at the top of the sliding block, winds across the pulley and is connected with the winch. The streetlamp can ascend and descend freely, and the lamp head is convenient to overhaul and replace.

The invention discloses an experimental iron support, which comprises a base plate, an iron rod and a condenser pipe clamp, wherein an undercut groove of which the length is 3 / 4 of total length is formed in the middle part of the base plate along the length direction; an opening is formed in the end part of the undercut groove; L-shaped baffle plates are arranged at two sides, symmetrical with the undercut groove, at the bottom part of the undercut groove; a square iron sheet which is internally arranged on the L-shaped baffle plates is fixed and welded to the bottom part of the iron rod; the iron rod can move forwards and backwards along the undercut groove; a locking cap which is used for being withheld at the upper part of the undercut groove is screwed on the iron rod; a shaft lever of the condenser pipe clamp is vertically fixed to the iron rod through a bench clamp arranged on the iron rod; two symmetrically arranged arc-shaped clamping jaws are hinged with the front end of the shaft lever; and a front-end locking device is arranged at the front end of each arc-shaped clamping jaw. According to the experimental iron support, free adjustment on the position of the iron rod can be achieved; meanwhile, the clamping stability of the condenser pipe clamp is improved; and the reliability is improved.

The invention discloses a microcomputer heat dissipation frame device, and belongs to the technical field of computer heat dissipation. The fixed supporting legs are fixedly mounted at four corners ofthe lower shell; Clamping column grooves are formed in the four corners of the upper surface of the lower shell. a clamping column is sleeved with the interior of the clamping column groove in a threaded manner; elastic clamping devices are arranged at four corners of the upper shell; the upper shell and the lower shell are connected in a threaded sleeving manner; it is convenient to carry out maintenance, cleaning and disassembly, wherein a heat dissipation device is movably connected between the rotating rod and the threaded rotating rod; When the notebook is placed on the upper surface ofthe upper shell to be fixed; When the notebook computer frame extrudes the arc-shaped plate, the sliding block installed at the lower end of the arc-shaped plate contracts backwards at the moment, thearc-shaped plate can be tightly attached to the upper frame and the lower frame of the notebook computer body under the action of elastic force after the notebook computer body is laid flat, and theanti-skid elastic pad arranged on the arc-shaped edge of the arc-shaped plate has anti-skid and protection effects.

The invention discloses a bus lifting ring stabilizing system. The system comprises a fixed block, and a vertical rod is arranged at the lower end of the fixed block; the lower end of the vertical rodis fixedly connected with a pull ring; a control mechanism is arranged in the fixed block; the control mechanism comprises a mounting cavity and a control cavity; the mounting cavity is communicatedwith the control cavity; the inner wall of the mounting cavity is rotationally connected with a first rotating shaft; the side wall of the first rotating shaft is rotationally connected with a drivingwheel; the inner wall of the control cavity is rotationally connected with a second rotating shaft; and a driven wheel is fixedly connected to the side wall of the second rotating shaft, the drivingwheel and the driven wheel are both incomplete gears, the driving wheel is engaged with the driven wheel, two rotating plates are symmetrically arranged on the side wall of the driven wheel, a fixed plate is fixedly connected to the side wall of the control cavity, an air duct is formed in the side wall of the fixed plate in a penetrating mode, and a containing cavity is formed in the fixed plate.According to the invention, passengers can be helped to better maintain their own balance, and the safety of passengers is ensured.

The invention discloses a pick-and-place wrap angle device for packaging, which comprises a base, a rotating mechanism, a pick-and-place driving part and a wrap angle bin, the rotating mechanism and the wrap angle bin are both mounted on the base, the pick-and-place driving part is mounted on the rotating mechanism, and the rotating mechanism drives the pick-and-place driving part to rotate; the device further comprises a wrap angle limiting block, a first included angle plate and a second included angle plate, the wrap angle limiting block is installed on the taking and placing driving part, the first included angle plate is fixedly connected with the wrap angle limiting block, the wrap angle limiting block is provided with an included angle driving part, the included angle driving part is provided with an included angle connecting plate, and the second included angle plate is installed on the included angle connecting plate. The device has the beneficial effects that the wrap angle is prevented from accidentally sliding off from the position between the first included angle plate and the second included angle plate, the problem that the wrap angle is prone to falling off due to the insufficient vacuum degree of equipment is solved, the reliability can be effectively improved, and the advantage of being good in applicability and reliability is achieved.

The invention aims to provide a mobile phone protection device, which is convenient for a user to carry certain commonly used items. The mobile phone protection device comprises a protection shell (1), a connecting band (5) and an accommodation device (7), wherein the protection shell (1) further comprises a first accommodation groove (4) and a second accommodation groove (3); the first accommodation groove (4) and the second accommodation groove (3) are suitable for accommodating card-shaped components; the card-shaped components are fixedly connected with the protection shell (1) in a detachable way, thereby becoming parts of the protection shell (1); the connecting band (5) is used for connecting the protection shell (1) with the accommodation device (7); and the accommodation device (7) is suitable for accommodating at least one key (8). Through adoption of the multifunctional mobile phone protection device, a protection function is provided for a mobile phone, and the user can be assisted in carrying a small quantity of personal belongings such as cards, cashes and keys. Moreover, the mobile phone is provided with the accommodation device. Through arrangement of the mobile phone connecting band, the mobile phone is prevented from falling accidentally when being used or carried by the user.

The invention discloses a stereoscopic parking lot, and relates to the field of parking lots. The stereoscopic parking lot comprises a plurality of box bodies used for storing cars. The box bodies align in the horizontal direction, and box body assemblies are formed by stacking at least one box body on the box bodies except one box body. A plurality of box body assemblies are placed in the parking lot. Each box body assembly is provided with a transporting mechanism. Each transporting mechanism comprises a crane and a rail. Each rail is horizontally erected above the corresponding box body assembly in the parking lot. The cranes are arranged on the rails in a horizontal moving mode. The box bodies are provided with a plurality of hooks matched with the cranes. The stereoscopic parking lot has the beneficial effects that the vertical space and the horizontal space of the parking lot are fully utilized, more vehicles are parked compared with a traditional stereoscopic parking lot, the car picking and parking operation can be completed for a driver, the driver does not need to find a parking place for car parking or picking, and much time and energy are saved for the driver.

The invention relates to a lifesaving device with the auxiliary rescue function. The device comprises a lifting assembly arranged on a ship body, wherein a first bearing mechanism and a second bearing mechanism are rotationally arranged on edges of the two sides of the ship body, and the lifting assembly is hinged to the first bearing mechanism and the second bearing mechanism through connecting rods; the bearing mechanisms are driven by the lifting assembly to turn over to lift the borne persons falling into water away from the water surface, rotating assemblies are arranged on the first bearing mechanism and the second bearing mechanism correspondingly, and the rotating assemblies rotate to cooperate with rescue workers to transfer the persons falling into water on the bearing mechanisms to the ship body; the first bearing mechanism and the second bearing mechanism are further provided with winding assemblies, the ship body is further fixedly provided with a counterweight assembly, and the first bearing mechanism and the second bearing mechanism can be driven by the lifting assembly to rescue persons falling into water on the two sides of the ship body at the same time; when the bearing mechanism is in one side rescue, the balance weight assembly is driven by the winding assembly to horizontally move towards the other side direction to keep the balance of the ship body.

The invention provides a glass slide flat dyeing device. The glass slide flat dyeing device comprises a rectangular box body with an opening at the upper side, the upper side of the box body is hingedwith an upper cover, a film airing frame is arranged in the box body, a glass slide slot is formed in the film airing frame, an air heater is arranged above the film airing frame, an air guide pipe is connected to the air heater, an air outlet is formed in the air guide pipe, a water platform frame is arranged on the upper portion of the rear side of a right side bin, a waste liquid cylinder is further arranged on the right side bin, a cross rod is arranged on the waste liquid cylinder, a screen plate is arranged below the cross rod, a washing liquid storage tank is arranged at the rear of awaste liquid cylinder, the washing liquid storage tank is connected with a shower water pipe, and the water outlet end of the shower water pipe extends upwards and is bent to the middle area of the waste liquid cylinder. The glass slide flat dyeing device integrates a series of appliances of fixing, dyeing, washing and drying required by the flat dyeing of the glass slide and has the function of temperature control.

The invention relates to the technical field of sewing, in particular to an overseaming device with the functions of dust removal and thread trimming. The overseaming device comprises a worktable, a bearing plate, supporting legs and a sewing machine main body; the bearing plate is parallelly mounted in the middle of the upper surface of the worktable, the sewing machine main body is mounted on one side of the upper surface of the bearing plate and comprises a connecting column and a clamping plate, and the connecting column is connected with the clamping plate through a clamping structure; the clamping structure comprises a clamping hook which is mounted at the bottom of the connecting column, mounting lugs are vertically mounted on the two sides of the upper surface of the clamping platerespectively, and a rotating shaft is horizontally mounted between the mounting lugs and clamped in the clamping hook; a T-shaped guiding groove for guiding a sewing machine needle is formed in the clamping plate, and an arc-shaped blade is mounted on the lower side of the horizontal end of the guiding groove. The device can greatly reduce dust, thread resides and batt which are generated duringsewing, and improve the working environment and the working efficiency.

The invention relates to an electric meter reading device, which comprises a climbing device and a data acquisition device, and is characterized in that the climbing device is a cylindrical shell formed by hinging two semi-cylindrical shells, semi-cylindrical rotors coaxially rotating with the shells are arranged on the shells, at least one sliding block sliding in the radial direction is arrangedon each rotor, and the sliding blocks are connected with the rotors through springs; an obliquely-arranged sinking groove is formed in the centripetal end face of the sliding block, a rotatable pin roller arranged in the sinking groove is arranged on the sliding block, and the rotating axis of the pin roller is perpendicular to the inclination direction of the sinking groove. The semi-ring-shapedgears coaxially connected with the rotor are arranged on the shells, a motor is arranged on any shell, and the motors are in transmission connection with the corresponding semi-ring-shaped gears. Thedata acquisition device is mounted on any one of the shells; according to the invention, automatic pole climbing and rapid data acquisition can be realized, the meter reading efficiency is improved,meanwhile, the meter reading device can be matched with telegraph poles with different thicknesses and radius change of the telegraph poles due to self taper, and the meter reading device has good universality and wide applicability.

The invention discloses a vertical tank with a skidproof safe climbing ladder. The vertical tank comprises a tank body, the climbing ladder and a protective cage. One side of the tank body is providedwith the climbing ladder. The two ends of the climbing ladder are symmetrically provided with two supporting rods. A plurality of pedals are horizontally arranged between the supporting rods. The interior of each pedal is provided with a heating sheet. The two ends of each pedal are connected with rotating shafts. One end of each rotating shaft is connected with one end of the corresponding pedal. The other end of each rotating shaft is connected with a rotating motor. The rotating motors are arranged on the outer sides of the supporting rods. The protective cage is arranged on the outer sideof the climbing ladder in a surrounding mode. The upper end of the tank body is provided with a fence. The fence is arranged on the outer side of the upper end of the tank body in a surrounding mode.In this way, according to the vertical tank, working at a high place is convenient for maintenance personnel, and rainwater on the surfaces of the climbing ladder pedals can be spin-dried through internal drying and mechanical rotating in rainy days to prevent the maintenance personnel from accidentally sliding down during climbing the climbing ladder in the rainy days.

The invention discloses a bearing cleaning machine with the cleaning fluid splashing protection function. The bearing cleaning machine comprises an inner box body and an outer box body; a spraying pipe and a fixing plate are horizontally and fixedly connected between the inner side walls of the inner box body; a plurality of spraying holes are formed in the lower end of the spraying pipe at equal intervals; fixing plates are oppositely arranged below the spraying pipe at intervals; a plurality of positioning columns for fixing bearings are vertically and fixedly connected to the upper ends of the fixing plates; the outer box body is arranged on the outer side of the inner box body in a surrounding mode; a cavity is formed between the inner side wall of the outer box body and the outer side wall of the inner box body; four shielding plates are arranged in the cavity in a vertical sliding mode, are symmetrically arranged in the cavity and are arranged in a rectangular mode; and sponge mats are arranged at the positions, facing the end surface on one side of the inner box body, of the shielding plates in an attached mode. The bearing cleaning machine has the advantages that by means of the mode, cleaning liquid can be prevented from being directly splashed on the working ground in the cleaning process, and the cleaning liquid which is splashed outwards can be adsorbed on the sponge mats for recycling.

The invention discloses a pupil pencil box. The pupil pencil box comprises a main body, wherein a pencil box cover is arranged on the main body; a connecting buckle is arranged on the pencil box cover; a box body is arranged on the main body; one side of the box body is provided with a pencil sharpener opening, and a suction magnet is arranged at the other side of the box body; a pencil sharpener is arranged in the box body; a handle is arranged on the pencil sharpener; a rubber groove is arranged at one side of the pencil sharpener, and a ruler groove is arranged at one side of the rubber groove; a pencil groove is arranged at the other side of the pencil sharpener; abrasion-resistant foot pads are arranged at the bottom part of the main body; a chip discharging hole is formed in the bottom part of the main body. The pupil pencil box has the advantages that by sheathing the pencil sharpener into the box body, the problems of additional carrying of the pencil sharpener by the pupil and easiness in losing are solved; by arranging the handle on the pencil sharpener, the pencil sharpener can be conveniently installed and detached; by respectively arranging the rubber groove, the ruler groove, the pencil sharpener and the pencil groove in the pencil box, the pupil is helped to culture a good habit of classification and arrangement; the structure is simple, the design is reasonable, and the popularization is easy.

The invention relates to the field of fire fighting equipment and discloses a fire cabinet for a first-line construction site with open water supply. The fire cabinet for the first-line construction site with the open water supply is characterized in that the fire cabinet comprises a cabinet body; the cabinet body is provided with a ceiling, a top water tank and a bottom open water tank from top to bottom, wherein the ceiling is provided with a water inlet to be communicated with the inner cavity of the top water tank, and the top water tank is communicated with the bottom open water tank through a pipeline; a 90 degree elbow is arranged just below a pipeline outlet; a float valve disposed on a horizontal port of the 90 degree elbow is located in the bottom open water tank and can close awater inlet of the float valve as the bottom open tank water level rises; the water inlet of the float valve can be opened as the bottom open tank water level lowers. The fire cabinet for the first-line construction site with the open water supply has the advantages of collecting and storing rain water for cleaning construction personnel in the construction site, conducting reasonable control overthe use of clean water, and realizing the purposes of facilitating construction personnel to clean and saving water resources.

The invention discloses a marble plate surface coffee table with adjustable height, and relates to the technical field of furniture. The table comprises a table top body and a base correspondingly mounted on the bottom of the table top body, one end of the side surface of the table top body is correspondingly provided with a folding device, the other end of the table top body is internally provided with a stealth universal wheel, the other side of the table top body is provided with a handle corresponding to the inside of one end of the stealth universal wheel, a groove is formed in one end, near the handle, of the upper surface of the table top body, the lower surface of the table top body is correspondingly provided with a stopping block, and the lower surface of the table top body is correspondingly provided with a ball. When the table is used, the table can be adjusted to a suitable height by changing the relative position of a spring pin to a first connecting rod, when the table is not in use, table legs can be folded with the first connecting rod, the table top is folded through the folding device, storage space is saved, convenience is provided for people to move the table,and convenience is brought for life of the people.