212results about How to "Avoid slippery" patented technology

A housing unit used to feed an object from a first atmosphere to a second atmosphere different from the first atmosphere includes a support member for supporting the object via a contact surface that contacts the object, and an antislip device that prevents slippery of the object relative to the support member.

The invention discloses an intelligent temperature-control anti-freezing bridge deck, wherein the bridge deck is paved with a thermal insulation layer; a lower layer of concrete is cast on the thermal insulation layer; the lower layer of concrete is paved with steel pipes; the steel pipes are paved with reinforcing steel bars and pre-buried with a bridge deck temperature sensor, and then an upper layer of concrete is cast; the steel pipes are provided with electric-heating wires; the two ends of each steel pipe are sleeved in a steel slot; and a temperature controller is arranged on connection wires of the electric-heating wires. The intelligent temperature-control anti-freezing bridge deck is simple in operation, and does not interfere the bridge deck structure; the heating wires cannot be extruded out of the bridge deck paving layer because of the paving of the concrete or the moving of a vehicle flow so that the heating wires can be effectively protected and is convenient to maintain; meanwhile, the predictability is strong so that the road slippery caused by low-temperature icing can be timely prevented; and the on-off of a switch can be controlled by a temperature sensing system without operation by staff, therefore the switch of a heating device can be automatically turned on and off so as to realize the effective use for whole day.

The invention discloses a ground cleaning trolley which comprises a chassis, a trolley body and wheels. A dust collecting opening, a spraying opening, a cleaning mophead and an air blowing opening are sequentially formed in the chassis. A dust removal bag, an exhaust fan, a water tank and a motor are arranged inside the trolley body. The dust collecting opening is connected with the dust removal bag through a pipeline. The exhaust fan is connected behind the dust removal bag. An air outlet in the exhaust fan is connected with the air blowing opening through a pipeline. An electric heating wire is arranged at the position of the air blowing opening. The water tank is connected with the spraying opening. The motor is connected with the cleaning mophead. The cleaning trolley is applicable to leaning of the ground in floor tiles and wooden floors. After the cleaning work, the risk or floor deformation caused by the slippery ground generated by remaining water is prevented. After ground dust is collected through the dust collecting opening, water is sprayed through the spraying opening, the cleaning mophead connected with the motor rotates to conduct cleaning, strip-shaped cleaning marks are not easily reserved after working is completed, the ground is clean and tidy, and more time and labor are saved when the cleaning work is carried out by the cleaning trolley provided with a driving position.

The invention discloses a triple-constant air conditioning unit which comprises a fresh air functional module and a water channel control module. The fresh air functional module comprises a shell anda fan, an air inlet and an air supply outlet are formed in the shell, and the fan is mounted in the shell. The water channel control module comprises a heat exchanger and a circulating water pump, a primary side of the heat exchanger is communicated with a cold and heat source medium, and a water outlet end of a secondary side of the heat exchanger is connected with a water inlet of the circulating water pump through a pipeline. The triple-constant air conditioning unit is characterized in that the water channel control module further comprises a radiant water separator and a radiant water collector which are fixedly mounted on a box, a water outlet of the circulating water pump is communicated with a main pipe joint of the radiant water separator through a pipeline, and a main pipe jointof the radiant water collector is communicated with a water return end of a secondary side of the heat exchanger through a pipeline. The invention further discloses an air conditioning system with thetriple-constant air conditioning unit and an air conditioning method. The triple-constant air conditioning unit has the advantages of simple and reasonable structure and more convenience and higher efficiency in mounting.

The invention discloses a blood drawing auxiliary device for departments of hematopathology and a method for applying the blood drawing auxiliary device. The blood drawing auxiliary device comprises atank. The front end surface and the rear end surface of the tank are communicated with each other, a second line roller is fixedly connected with the rear end surface of a first line roller, a thirdline roller is fixedly connected with the side, which is far away from the first line roller, of the second line roller, a rotary rod is fixedly connected with a certain side of each of the first lineroller and the third line roller, the certain side of the first line roller and the certain side of the third line roller are far away from the second line roller, the two rotary rods are positionedat the same horizontal altitude, a support plate is movably connected with the end, which is far away from the second line roller, of each rotary rod and is fixedly connected to the top of the tank, aflat spiral spring is arranged on a certain side of each of the first line roller and the third line roller, the certain side of the first line roller and the certain side of the third line roller are far away from the second line roller, the top of the end, which is far away from a pedal, of a third rope penetrates the top of the tank, and the third rope is wound on the third line roller. The blood drawing auxiliary device for the departments of hematopathology and the method have the advantages of high efficiency, simplicity in operation and the like.

The invention discloses a hospital public sanitary disinfection device which includes a box body. Support legs are symmetrically arranged on two sides of the lower end of the box body. Self-locking roller wheels are arranged on the lower ends of the support legs so that the device is easy to move. A pushing rod is arranged on the right upper end of the box body. A handle is arranged on the upper end of the pushing rod so that the device is easy to push by an operator. A gas inlet is formed in the left end of the box body. A gas inlet grating is formed at the outer side of the gas inlet and isfixed to the box body through bolts. The device has simple and reasonable structure and can disinfect and sterilize air and also mop and disinfect floor. Through guidance on the gas flow, air flows above the mopped floor, so that water on the floor can be quickly evaporated, thus avoiding slippery floor. In the device, due to a smart design of the position of an ultraviolet disinfection lamp, thedevice not only can disinfect and sterilize air but also can perform assistant disinfection and drying to the floor.

The invention relates to an adaptive cleaning grain harvester, and belongs to the technical field of agricultural machinery. The adaptive cleaning grain harvester comprises travel chassis and a control circuit. The travel chassis is provided with a main header, a threshing and separating device, a grain cleaning device and a cereal collecting and unloading device, and the threshing and separatingdevice is connected with the main header by a feeding and conveying device. A front hinge bracket and a rear hinge bracket are fixedly connected with a grooved body of a vibrating sieve of the grain cleaning device; sieve plates are hinged to positions between the front hinge bracket and the rear hinge bracket, one of the front hinge bracket and the rear hinge bracket is hinged to one end of an electric control telescopic device, and the other end of the electric control telescopic device is hinged to a side of each sieve plate; a fan is provided with rotational speed regulation links; sensorsinclude left, right, front and rear inclination angle sensors, telescopic distance sensors and rotational speed sensors, and signal output ends of the various sensors are connected with the electriccontrol telescopic device and controlled ends of the rotational speed regulation links of the fans by the control circuit. The adaptive cleaning grain harvester has the advantages that even grains onparcels of rice fields with different slope gradients can be harvested by the adaptive cleaning grain harvester, and the grain harvesting operation efficiency and quality can be guaranteed.

The invention discloses a self-adjusting deceleration strip for a sponge city. The self-adjusting deceleration strip comprises a deceleration strip body fixed to the upper end of a soil layer and a water collecting tank buried in the soil layer, wherein a plurality of water collecting pipes communicating with the interior of the water collecting tank are inserted into the upper end of the soil layer; a compression groove is formed in the upper end of the deceleration strip body; a compression plate and an adjusting plate are slidably connected to the inner wall of the compression groove; two symmetrically-arranged connecting plates are welded to the bottom of the compression plate; and supporting mechanisms used for preventing the compression plate from moving are arranged at the tops of the two connecting plates correspondingly. The self-adjusting deceleration strip has the advantages that when a vehicle passes through the deceleration strip body, the compression plate is extruded tomove downwards, thus the connecting plates move downwards to push hydraulic oil in an extrusion box, a pushing block pushes water flow pushed into the box into a water spraying pipe under pushing of the hydraulic oil, rainwater in a water spraying cavity is sprayed outwards to spray the road surface, raised dust on the road surface is effectively reduced, the ground temperature is decreased, and the city environment is improved.

A fabric structure and its manufacturing method are disclosed. The fabric structure is weaved by wefts and warps which are crossed with each other, and each of wefts and warps has a double ply structure in which yarns thereof are contacted in a length direction. The fabric structure gives more excellent mechanical strength and better flexibility than a conventional one. Relatively thicker reinforced weft and warp are repeatedly inserted and weaved among common wefts and warps so as to form repeatedly protruded rectangular patterns on the surface of the fabric structure. The patterns increase a surface friction, thereby preventing accidents caused by slippery of the surface of the fabric structure.

The invention discloses an anti-static woven bag and a manufacturing method thereof. The anti-static woven bag comprises, by weight, 2-3.5% of dispersing agent, 1.5-3% of cross-linking agent, 0.8-1.5% of coupling agent, 0.8-2.0% of nano calcium carbonate, 1-2% of antioxidant, 9-11% of linear low density polyethylene, 2.0-4.0% of anti-static agent and the balance polypropylene. According to the anti-static woven bag and the manufacturing method of the anti-static woven bag, due to the fact that the 2-4% of anti-static agent is added in ingredients of the woven bag, the surface of the woven bag can have lubricity, the friction coefficient of the woven bag is obviously lowered, meanwhile, static charges generated on the surface of the woven bag are restrained and reduced, and thus the woven bag has the excellent anti-static performance. In addition, in the process of manufacturing the anti-static woven bag, the anti-static performance of the woven bag can be effectively achieved by adjusting the specific parameters of drawing, weaving and other links, and the anti-static effect of the woven bag is finally achieved.

The invention relates to a multi-purpose anti-sliding block for an automobile, comprising barriers, a connection internal rod and a connection external rod, characterized in that the barrier is provided with an inclined plane at the front end and a connection port at the rear end, two barriers fixedly connect with the coupling ends of the connection internal rod and the connection external rod respectively through the connection ports thereof, the connection internal rod and the connection external rod are respectively equipped with a group of pin clamps for adjusting the connection length, pins are inserted into the pin clamps to form fixed connections after the free end of the connection internal rod is inserted into the open end of the connection external rod. The invention can prevent the automobile from sliding or moving without changing the existing functions of the automobile, greatly increase the safety performance of the automobile when parking, repairing or loading, and has advantages of convenience, low price, practicality and reliability.

The invention relates to an intelligent ice and snow early warning system and method applied to a photovoltaic road section. The system comprises a weather acquisition module, a monitoring and early warning module and a photovoltaic power generation interface which is used for supplying power, generated by a photovoltaic road, for the weather acquisition module and the monitoring and early warningmodule; the weather acquisition module is used for acquiring weather information and road state information of the photovoltaic road; the monitoring and early warning module is used for obtaining anice and snow early warning result of the photovoltaic road according to the weather information and the road state information, and early warning people of ice and snow on the photovoltaic road according to the ice and snow early warning result. According to the embodiment of the invention, the ice and snow condition of the photovoltaic road can be predicted, and monitoring and early warning of ice and snow on the photovoltaic road section are achieved; the early warning system can achieve the early warning function by itself without the aid of external power, the cost of laying a circuit is saved, and the economic efficiency can be effectively improved especially for remote roads.

A method of making patterns for decorative piece, comprising the steps of using a metal plate as the molding substrate for laser etching; placing the mold substrate under a laser etching device, and cutting the substrate into a recession of appropriate depth. Further, the height of the laser head of the laser etching device is lifted, and then the dispersion of laser beam can be accomplished by means of a reflective lens. In the meantime, the depth of etching is reduced progressively, and the etching area is expanded along the path of previously cut recession. The manufacturing is made by progressively lifting the laser emitting head according to the theory described above.

The invention discloses a brake cooling method and a brake cooling device. Collected temperature values of a brake are obtained in real time through a controller (5); when the temperature value of the brake is greater than a preset temperature value, the opening degree of a first electromagnetic valve (4) and the opening degree of a second electromagnetic valve (8) are controlled, so that water in a water tank (1) is atomized and sprayed to the inner side of a brake drum of the brake by an atomizing spray head (7) through pressured air in an air storage tube (2); the goals of regulating and controlling the quantity of cooling water according to the temperature condition of the brake, reasonably and effectively using cooling water, further improving the cooling efficiency, avoiding wet and slippery conditions of the pavement caused by the cooling water and saving water resources are achieved; the goals of atomizing the cooling water and uniformly spraying the cooling water to the inner side of the brake drum are achieved by using the atomizing spray head; the problem of local cracking due to greater temperature differences at the inner and outer sides of the brake drum caused by direct showering type cooling is effectively avoided; and the running safety of vehicles is further improved.

An eating tool (100) is composed of a rod-shaped member (102) which comprises a holding portion (104) and a utensil portion (108) provided at a tip of the holding portion (104) for holding or cutting food (106) to carry the food (106) into mouth, wherein the utensil portion (108) comprises a fork (110) split into two and a knife portion (114) in which a plurality of grooves (112) are formed outside one of the split portion of the fork (110).

The invention discloses a device for clearing pig hair with cereals. The device comprises a rack and is characterized by further comprising steamers and multiple hair pulling mechanisms arranged on the rack horizontally, wherein each hair pulling mechanism comprises elastic ropes and multiple rice grains, the multiple rice grains are transversely arranged on the elastic ropes in a penetrating manner, when the elastic ropes reach 20%-50% of the maximum stretching length, the two adjacent rice grains are butted against each other, two ends of each elastic rope are detachably connected onto the rack, outlets of the steamers face the space below the hair pulling mechanisms, and a reciprocating drive mechanism for pushing the hair pulling mechanisms to move up and down is arranged on the rack. With the implementation of the technical scheme, the problem that hair roots are prone to be left in pig skin with an existing hair pulling technology is solved.

The invention discloses an angle steel non-slip ramp, and relates to a non-slip ramp, in particular to an angle steel non-slip ramp with a drainage function, wear resistance and a good non-slip effect. The angle steel non-slip ramp comprises a non-slip framework and a concrete layer, wherein the non-slip framework is fixed on the concrete layer. The angle steel non-slip ramp is characterized in that: the non-slip framework is formed by welding channel steel and angle steel; two pieces of channel steel are arranged on the two sides of the non-slip framework respectively and used as vertical keels; a plurality of pieces of V-shaped angle steel are welded on the channel steel on the two sides and used as horizontal keels; and fine stone concrete is filled in gaps of the non-slip framework and flush with openings of the angle steel, so that the surface of the ramp is flat. The angle steel non-slip ramp is scientific in design, has a simple structure and is convenient to use, the wear of the non-slip framework can be reduced, and the service life is prolonged; and accumulated water on the surface of the ramp can be effectively reduced, and the phenomenon that the surface of the ramp is slippery because the accumulated water is excessive is avoided.

The invention discloses submarine photoelectric separation equipment, which belongs to the technical field of submarine observation equipment and submarine observation networks. The submarine photoelectric separation equipment comprises: a pressure-resistant cylinder, wherein a first end of the pressure-resistant cylinder is an open end, and a second end far away from the first end is a closed end; an end cover which is located in the compression-resistant cylinder, wherein the end cover and the compression-resistant cylinder jointly form a sealed cavity structure, and the end cover is provided with a through hole for the photoelectric composite cable to penetrate through; an injection molding body which is located in the through hole of the end cover, wherein the photoelectric composite cable is in sealed connection with the end cover through the injection molding body; and a cable watertight connector and an optical fiber watertight connector which are respectively connected to the second end in a sealing manner. According to the pressure-resistant cylinder, the first end is the open end, the second end far away from the first end is the closed end, the open end is sealed with the end cover, the end cover and the tail end of the photoelectric composite cable are sealed in an injection molding mode, the sealing performance of the photoelectric composite cable is more reliablethan that of a photoelectric composite cable adopting a sealing ring and other sealing modes, and the submarine photoelectric separation equipment is suitable for the deepwater 4KM marine environment.

The invention relates to a cleaning method used in an amorphous carbon deposition process. The cleaning method comprises a process step S1 of pre-cleaning a plasma chamber body under a plasma condition and a process step S2 of depositing an environment protecting film on the plasma chamber body; the step S2 particularly comprises the steps of introducing gas containing C2H2, Ar and He into the plasma chamber body, depositing a layer of non-N-doped amorphous carbon film having a first thickness on the plasma chamber body wall, then introducing gas containing C2H2 and N2 into the plasma chamber body, again growing a layer of N-doped amorphous carbon film having a second thickness on the non-N-doped amorphous carbon film, wherein the second thickness is less than the first thickness. Therefore, the problems of wafer backside aluminum pollution and caused easy migration of a wafer position are avoided.

The invention provides a coal mine underground gas extraction drilling orifice device which comprises an orifice pipe (1), an outburst prevention pipe (4), a four-way joint (5), a sealing assembly (6), an orifice sealing pipe (7), a rubber tube (9) and a gas-water separator (10), wherein the outburst prevention pipe (4), the four-way joint (5) and the orifice sealing pipe (7) are sequentially connected by flanges and are fixed and sealed on the drilling wall together with the orifice pipe (1); the gas-water separator (10) is connected with the lower end port of the four-way joint (5) by the rubber tube (9). The sealing assembly (6) is arranged in the orifice sealing pipe (7), reliable sealing between a drill rod (8) and the orifice sealing pipe (7) can be realized so as to effectively shunt gas, backwater and return slag in a hole into designated pipelines or regions and prevent the gas in the hole from flowing to the construction site of a roadway to cause a gas overrunning accident.

The invention relates to a condom capable of achieving quantitative lubrication. The condom is characterized in that a lubricant layer is disposed on the inner surface of the condom, the lubricant layer contains lubricant with the unit dose of 0.011-0.319mg / cm<2>, and the area of the lubricant layer is 50-100% of the area of the inner surface of the condom. The condom has the advantages that loosening and sliding of the condom can be prevented effectively, user satisfaction during use is increased, the condom is easy to wear, inappropriate fit (such as skin wrinkles, excessive tightness or excessive looseness and irregularity) of the penis skin and the condom is avoided, wearing satisfaction is improved, and consumers' willingness to use the condom can be increased.

The invention discloses a traveling case with a negative pressure skid-preventing mechanism. The traveling case comprises a traveling case basic structure composed of a case box, a case cover, a pull rod and trundles, and a skid-preventing mechanism composed of a sucker, a draw tube, an air tube, a locking ball, a spring, an air bag and a deflation plug screw, wherein the skid-preventing mechanism is provided with a draw tube capable of moving up and down straightly on a pull rod fixing part, the air tube is installed in the draw tube, and the sucker is mounted at the lower end of the air tube. A movement locking mechanism is mounted on the side surface of the draw tube, the draw tube can move up and down after overcoming the force of the locking spring, and after the draw tube moves in place, the locking ball plays limiting and locking effects. According to the skid-preventing mechanism, the air bag and the air tube are matched in the sucker to form negative pressure, and the sucker is fixed on the ground by utilizing atmospheric pressure, and the traveling case is prevented from sliding on a bus or other vehicles. The deflation plug screw in the mechanism is used for balancing pressure inside and outside the sucker so that the sucker is moved away from the ground.

The invention discloses a single door for a toilet and a using method thereof. The single door for the toilet comprises a door body, a door handle and a rotating shaft connected with the door handle,wherein a device cavity is formed in the door body, the rotating shaft is rotatably connected to the inner wall of the device cavity in a penetrating mode, a rotating rod is fixedly connected to the outer side wall of the rotating shaft, an arc-shaped abutting rod is fixedly connected to the lower side wall of the rotating rod, an arc-shaped sleeve is installed in the device cavity, a first pistonfixedly connected with the tail end of the arc-shaped abutting rod is installed in the arc-shaped sleeve, a strip-shaped cavity is formed in the door handle, the strip-shaped cavity communicates withthe arc-shaped sleeve through a suction pipe, a second piston is installed in the strip-shaped cavity, the second piston is elastically connected with the inner wall of the strip-shaped cavity through a spring, the outer side wall of the door handle communicates with the strip-shaped cavity through a suction hole, and a plurality of sliding ways are installed on the outer side wall of the door handle. The single door has the advantages that the structure is reasonable, moisture on the door handle can be timely absorbed after the door handle is used, and the moisture on the ground can be absorbed.

The invention discloses an air conditioner condensed water cold energy recovery device and the application thereof, and belongs to the technical field of air conditioners. The air conditioner condensed water cold energy recovery device and the application thereof are used for solving the problems that in the prior art, because condensed water is usually discharged outdoors directly through the condensed water drain pipe of the indoor unit of an air conditioner, the low-temperature cold energy carried by the condensed water is not utilized very effectively; because the phenomena of outdoor high altitude water dripping and slippery road surfaces are caused by condensed water discharge at will, inconvenience is caused to the pedestrian outdoors; and energy waste is caused, and because the temperature of the fin condenser of the outdoor unit of an air conditioner is over high, the energy efficiency of the air conditioner is reduced, and the service life of the compressor of the air conditioner is shortened. According to the air conditioner condensed water cold energy recovery device and the application thereof, condensed water is sprayed to the fin condenser of the outdoor unit of an air conditioner in the form of water spray through a spray device, not only is the cold energy of condensed water utilized, but also the temperature of the fin condenser of the outdoor unit of the air conditioner is lowered, the cost is low, the structure is simple, and modification is easy to carry out.

The invention discloses a head feeding system of an anode plate anode scrap feeding machine. The head feeding system comprises a bearing table, a conveyor, a lifting system, a pushing-in system, two centring systems and a transition small platform. The conveyor is arranged on the bearing table, the pushing-in system is arranged above the conveyor, and a lifting frame is arranged above one end of the bearing table. The head feeding system has the beneficial effects that after materials are conveyed to the designated spot, the lifting system enables the pushing-in system to fall off, meanwhile,third oil cylinders on the two centring systems push a pushing plate to move through third hydraulic rods, centring treatment is carried out on the materials, the materials are pushed to the middle portion of the anode scrap feeding machine, it is guaranteed that stability of the materials moving and being conveyed on the feeding system is better, and the positions where the materials are conveyedand fed are more precise and appropriate. A furnace door is opened, after the materials are pushed in, the system is pushed in to retract, the furnace door is closed, and the pushing-in system is lifted up by the lifting system. According to the head feeding system, the structure is simple, no material clamping phenomenon is generated in the material conveying and feeding process, and the head feeding system is long in service life and stable in work.

This invention discloses a sectional adjustable socket tool handle, which controls the movement of an axial rod along the axial direction of an external pipe by a connecting measure, and comprises a plurality of grooves, a coupler for engaging the plurality of grooves, such that a latch member on the external pipe is latched into the groove under normal conditions, and the coupler can move between a first position and a second position along the axial direction of the external pipe. When the coupler moves to the first position, the coupler will press against the latch member to prevent the axial rod from moving. When the coupler moves to the second position, the coupler will release the latch member. Such arrangement can provide a safe and reliable socket wrench.

The invention discloses a pole climbing device. The pole climbing device comprises a pole climbing grappler, a safety belt and a climbing belt. The pole climbing grappler comprises a main buckling rodpiece, an auxiliary buckling rod piece, a guide rod piece, a threaded rod, an adjusting block, a pedal plate, a motor, a controller and a signal receiver. The threaded rod and the guide rod are arranged in parallel. The adjusting block is provided with a guide hole for allowing the guide rod to penetrate through and a threaded hole for allowing the threaded rod to penetrate through and matched with the guide hole. The adjusting block is in sliding fit with the guide rod through the guide hole. The pedal plate is fixedly connected with the adjusting block through a connecting rod. The auxiliary buckling rod piece is fixedly connected with the side, facing the main buckling rod piece, of the pedal. The controller and the signal receiver are used for receiving signals and controlling the motor to drive the threaded rod to rotate to enable the adjusting block to move. The two ends of the climbing belt are detachably connected with the safety belt. A remote control panel used for transmitting signals to control the motor is arranged on the surface of the climbing belt. According to the pole climbing device, the pole climbing grappler can be adjusted to meet the requirement that the topof a telegraph pole is thinned under the condition that the normal pole climbing posture is kept in the air. Therefore, the pole climbing operation is safer.

The invention discloses an infusion device specially used for infusion of children, Including retaining tape, At one end of that fix belt, a fixing box is arranged, two U-shaped channels are arrangedinside the fixing belt, A fixing belt is arranged inside the U-shaped channel, A fixing device is arranged inside the fixing box of the fixing belt, the fixing device is to prevent the fixing belt from moving again by the pressure, so as to ensure that the child does not drop the needle when moving the arm, A pin-tie device is arranged on the fixing belt, the needle device allows doctors and nurses to see the child 's blood vessels more clearly through a magnifying glass, so as to facilitate medical staff to give injections to children, A low part of that fixing belt is provide with an arm anti-skid anti-squeeze device, The arm anti-skid anti-squeeze device reduces the friction of the fixing strap to the child's arm directly by using an air bag, and can also prevent the fixing strap from being too tight so as to reduce the harm to the child's arm. The fixing strap is provided with a needle tube fixing device, and the needle tube fixing device is inserted into a corresponding groove toprevent the needle tube from moving and falling off. The invention has the advantages of simple structure and strong practicability.

The invention discloses an automatic spraying device for dust fall of green construction site construction. The automatic spraying device comprises a power device, and a spraying mechanism is arrangedat the top of the power device; people can adjust the size of the sector area swept by the spraying gun according to the width of a construction site transmission device, the resource utilization rate can be improved, the water resource can be saved, and the applicability of the spraying device is improved; the linkage device, the elevation angle control device, the triggering mechanism and the spraying mechanism are matched, the spraying elevation angle of the spraying gun can be automatically changed in the working process and then the landing area of rain and fog is changed; the coverage area of rain and fog is increased and the problem of slippery ground can be further alleviated. With cooperation of the elevation angle control device and the triggering mechanism, people can control the change range of the elevation angle of the spraying gun according to the length of te construction site, the resource utilization rate is higher, the applicability of the spraying device is improved and the practicability of the spraying device is improved.

Provided is a novel means of preventing the characteristic post-pasteurization sliminess and non-crispy flavor of milk-containing drinks, in particular milk-containing coffee drinks. A milk composition wherein the milk serum protein / milk protein ratio is reduced; and a milk drink wherein the milk serum protein content is reduced.