78 results about "Ice binding" patented technology

The embodiment of the invention provides an automatic activation control method for an intelligent anti-icing and snow-removing control system, and the method comprises the steps: dividing an anti-icing and snow-removing heating region based on the real-time temperature and icing condition data of the surface of an airplane; when it is detected that the icing risk exists in the specific area, the heating device in the corresponding area is activated; dynamically adjusting the power of each heating area according to the environment condition and the flight state; and the working state of each heating area is recorded and analyzed, and the future partitioning strategy is optimized to improve the energy efficiency ratio. Through the scheme of the embodiment of the invention, the problem of how to intelligently partition the heating area to solve the balance problem between the energy consumption and the anti-icing efficiency can be solved.

The invention provides an anti-freezing optical cable freezing expansion pressure detection analysis method and system, and relates to the field of optical cable freezing prevention. The method comprises the steps of analyzing strain and deformation of a protection steel pipe and an optical cable in the protection steel pipe according to an optical cable structure and a protection steel pipe structure, and constructing a strain and deformation calculation model; through basic parameters of the optical cable and the protection steel pipe, calculating a cross sectional area variation by using a strain and deformation calculation model; constructing an optical cable pressure calculation model according to the relationship between the cross sectional area variations; analyzing the pressure caused by the icing layer in the protection steel pipe and a frost heaving strain theory, and constructing a frost heaving strain distribution model under the continuous icing layer condition; and according to the constructed optical cable pressure calculation model and the frost heaving strain distribution model under the continuous icing layer condition, frost heaving pressure calculation and related factor analysis of the internal material of the protection steel pipe are carried out. According to the method, influence factors of optical cable freezing damage are deeply analyzed, and guidance is provided for improving the anti-freezing design of the directly-buried optical cable.

The invention relates to the technical field of circulating water anti-freezing, and discloses a power plant circulating water anti-freezing system suitable for a cold region, and the system comprises a temperature sensing module, an anti-freezing heating module, a water flow disturbance module, an ice layer processing module, an intelligent regulation and control center and a fault safety module; when the circulating water system of the power plant operates in a cold region, the internal water temperature and external environment parameters of key nodes of a circulating water pipe network are monitored in real time, and a low-temperature early warning signal is generated based on a temperature field reconstruction algorithm of machine learning, so that abnormal temperature fluctuation can be recognized in time, early warning delay and false alarm caused by wind speed and humidity interference are avoided, and the working efficiency is improved. And in the circulating water anti-freezing process, the output power of the flexible electric heating body is dynamically adjusted through a graded heating mechanism, and the turbulence generator is linked to optimize water flow distribution, adapt to thermal inertia change of a pipeline and prevent the risk of local icing caused by sudden temperature drop.

The invention discloses a biological material supercooling storage system and a working method thereof. The biological material supercooling storage system comprises a sample carrier for storing and placing a biological material; the sample cavity is used for providing a subcooled storage environment of-30 to-5 DEG C for the biological material; the temperature control module is used for providing a controllable cooling rate for the interior of the refrigeration module, the cooling rate is greater than 2 DEG C / min in a temperature interval of above 5 DEG C, the cooling rate is 1-2 DEG C / min in a temperature interval of 0-5 DEG C, and the cooling rate is less than 1 DEG C / min in a temperature interval of below 0 DEG C; the electromagnetic excitation module is used for generating a low-frequency to very high-frequency 50Hz-300MHz electromagnetic field in the sample, and inhibiting the formation and growth of ice crystals in the sample by using the non-thermal effect of the electromagnetic field; the cooperative control module is used for achieving cooperative control over the cooling rate, the supercooling temperature and the electromagnetic field intensity so as to maintain long-term storage of the samples in a liquid state at the supercooling temperature, the storage temperature of the biological materials is reduced, meanwhile, the biological materials are not frozen, and liquid-state storage of the biological materials with different sources and different sizes at the low temperature can be achieved.

The utility model relates to an anti-ice-falling device for the surface of a cross tie beam of a bridge tower, which comprises a plurality of anti-ice-falling devices arranged on the surface of the cross tie beam, each anti-ice-falling device comprises an anti-ice-falling clamp, a plurality of raised fixing pieces and a plurality of extended connecting pieces, and the anti-ice-falling clamps comprise a first anti-ice-falling clamp and a second anti-ice-falling clamp. The first anti-ice-falling clamp and the second anti-ice-falling clamp are fixedly arranged on the edges of the left side and the right side of the cross tie beam respectively, and the first anti-ice-falling clamp and the second anti-ice-falling clamp are connected into a whole through the extending connecting pieces and the protruding fixing pieces and fixed to the upper surface of the cross tie beam. The limiting baffles arranged at certain intervals prevent solid accumulated ice from sliding on the upper surface of the bridge tower cross tie beam, meanwhile, lateral drainage of the upper surface of the cross tie beam cannot be hindered, the phenomenon that a traditional drainage channel becomes a'water blocking channel 'due to icing is avoided, and the size of a single block of ice accumulated on the upper surface of the cross tie beam is limited within a safety threshold value as much as possible.

This invention relates to the field of drying technology, specifically providing a compressor unloading control method for a dryer. The aim is to solve the problems of long unloading times during compressor unloading in existing dryers, leading to frost or even ice buildup on the external heat exchanger, and excessively high unloading frequencies causing performance degradation and reduced lifespan. To this end, the compressor unloading control method for a dryer of this invention includes: acquiring the compressor's operating current; comparing the compressor's operating current with the unloading current and the unloading exit current; and based on the comparison results, selectively controlling the dryer to enter different unloading modes or normal operation modes. This invention can select different unloading modes according to the compressor's operating current, reducing compressor unloading time compared to existing compressor unloading methods, improving the dryer's operational stability and baking quality, and extending its service life.

The invention relates to the technical field of anti-freezing materials, and discloses a bio-based environment-friendly pavement freezing inhibitor and a preparation method thereof, the bio-based environment-friendly pavement freezing inhibitor is prepared from the following raw materials by weight: 20-30 parts of a bio-based anti-freezing agent, 10-15 parts of an organic acid salt, 12-18 parts of polyol, 10-15 parts of a functional auxiliary agent, 6-12 parts of a synergistic auxiliary agent, 5-10 parts of a bio-based corrosion inhibitor, 15-30 parts of a bio-based filler and 30-40 parts of deionized water. The preparation method comprises the following steps: S1, mixing the bio-based antifreeze agent, the organic acid salt, the polyol, the functional additive and the synergistic additive; s2, uniformly spraying the bio-based slow-release agent solution on the surface of the mixed material through an atomizing nozzle; and S3, mixing the bio-based filler, the coated product and deionized water, drying, and crushing to obtain the bio-based environment-friendly pavement freezing inhibitor. The anti-icing device is suitable for anti-icing operation in winter in cold region roads, airports, bridges and other scenes.

The utility model relates to composite spiral mesh belt conveying equipment. The problems that due to the fact that a spiral track is iced or serious oil accumulation exists in the track, local deformation of a rotary drum is too large, serious mechanical faults such as off tracking, belt stacking, belt turning and even belt tearing and breaking happen to a conveying belt, and the production efficiency is greatly influenced are solved. Oil dirt and stains are accumulated on an inner guide rail, cleaning is difficult, great friction force is generated when the guide rail makes contact with a mesh belt, the operation power is increased, and meanwhile sanitation and safety of food are affected. According to the technical scheme, the self-supporting mesh belt conveyor is composed of a self-supporting main transmission mechanism, an auxiliary conveying mesh belt mechanism and an auxiliary belt returning mechanism. The food conveying device is suitable for conveying quick-frozen food and steamed and baked food.

This utility model relates to an antifreeze device for water supply and drainage pipes, and pertains to the field of water supply and drainage engineering. The water supply and drainage pipe body of this technical solution is protected from freezing by an antifreeze component. The antifreeze component includes a water tank, one side of which is connected to the first end of the input pipe, and the other side of which is connected to the second end of the output pipe. A set of heating blocks is installed inside the water tank, and a microcontroller is mounted on its outer surface. A pump is also included, with its input end connected to the second end of the input pipe and its output end connected to the first end of the output pipe, and is electrically connected to the microcontroller. The output pipe is wound around the water supply and drainage pipe body, and is divided into a front half and a rear half. The rear half of the output pipe is further equipped with a secondary heating component electrically connected to the microcontroller. In this configuration, the cooperation between the antifreeze component and the water supply and drainage pipe body significantly improves the stability of the antifreeze effect, effectively prevents the medium inside the pipe from freezing, and ensures the normal operation of the water supply and drainage system.

The present application relates to a freeze protection control method and device for a gas water heater, wherein the freeze protection control method includes: when detecting that the gas water heater meets preset freeze protection start conditions, obtaining the average water flow rate of a water pump at a first preset power and a first operating time; determining the number of water pump operations based on the pre-stored water storage volume of the gas water heater, the first operating time, and the average water flow rate; determining the operation interval duration of the water pump based on the first operating time, the average water flow rate, and a preset unit water flow rate; controlling an electric heating device to heat according to a preset heating power, and controlling the water pump to operate according to the first preset power, the operating interval duration, the first operating time, and the number of operations during the heating period of the electric heating device, so that the temperature of the stored water is increased by a preset temperature rise value when the water pump operation ends. The embodiments of the present application can prevent the stored water in the gas water heater from freezing in a low temperature environment.

The utility model discloses a cold region sewage pretreatment self-heating anti-freezing grid which comprises a main body assembly, and the main body assembly comprises a coarse grid, a limiting frame, a guide column, a fine grid and a pressing ring; the limiting frame is fixedly connected to the rear surface of the thick grid, and the outer side wall of the thin grid is attached to the inner side wall of the limiting frame. According to the utility model, the fine grid is designed into a split structure, so that the electric heating wire can be conveniently mounted, and the sealing ring is arranged between the two grid plates, so that sewage can be prevented from entering the fine grid to corrode the electric heating wire; through cooperation of structures such as a pressing ring, a guide column and a locking nut, the fine grille and the coarse grille can be tightly attached, and heat transfer is facilitated; when the electric heating wire works, heat is transferred to the surface of the grating plate, and the grating plate transfers the heat to the coarse grating, so that the condition that the surface of the grating is frozen can be avoided, a grating opening cannot be blocked by ice bodies and frozen impurities, and the water passing capacity of the grating is guaranteed.

The utility model discloses an anti-icing evaporator of a refrigeration house in the technical field of refrigeration house refrigeration equipment. The anti-icing evaporator comprises an evaporation box body and a circulating device, the evaporation box body is provided with a hollow heat exchange cavity. The front side and the rear side of the evaporation box are provided with an air outlet and an air inlet communicating with the heat exchange cavity correspondingly. The circulating device is arranged in the heat exchange cavity and comprises a plurality of heat exchange pipes, a spraying device used for spraying an anti-freezing solution is arranged above the circulating device, a recovery opening is formed in the lower end of the evaporation box body, and the recovery opening is communicated with the spraying device through a circulating pump. According to the anti-icing evaporator for the refrigeration house, the anti-freezing solution is sprayed to the heat exchange pipe of the circulating device through the spraying device, and condensed water is taken away through the anti-freezing solution with the low freezing point, so that ice blocks or frost are prevented from being formed on the surface of the heat exchange pipe.

The utility model discloses a cold liner anti-freezing structure of a tea purifying and drinking bar machine, which comprises a purifying and drinking machine main body, a cold liner and an ice-making module are arranged in the purifying and drinking machine main body, the ice-making module comprises a water return bin and an ice-making box, the ice-making box is arranged in the water return bin, the cold liner is provided with a first refrigeration evaporator, and the ice-making box is provided with a second refrigeration evaporator. The water purifying and drinking machine body is further provided with a compression refrigeration module used for providing refrigerants for the first refrigeration evaporator and the second refrigeration evaporator. The cold container is provided with a circulating pump, the water inlet end of the circulating pump is connected with the cold container, the water outlet end of the circulating pump is connected with the ice making box, a water return structure is connected between the water return bin and the cold container, and water in the water return bin flows back to the cold container through the water return structure. The device has the effects of high cold water preparation efficiency and effective prevention of freezing of the cold liner.

The embodiment of the invention provides a method and device for determining a frost heaving prevention result of a concrete pipe pile. The method comprises the steps that the lowest environment temperature of an area where the concrete pipe pile is located and the temperature of accumulated water in an accumulated water containing cavity are obtained; according to the temperature of the accumulated water, the allowed total heat transfer amount of the accumulated water is determined; according to the lowest environment temperature, the temperature difference between the accumulated water freezing point temperature and the lowest environment temperature is determined; according to the temperature difference and the thicknesses of the first plugging plate, the air interlayer and the second plugging plate, the heat transfer speed of the concrete pipe pile is determined; according to the accumulated water allowable total heat transfer amount and the heat transfer speed, the time needed by freezing is determined; and comparing the time required for freezing with set time to obtain a frost heaving prevention result. According to the embodiment of the invention, the first plugging plate, the second plugging plate and the air interlayer are arranged, an efficient heat insulation layer is formed by utilizing the extremely low heat conductivity coefficient of air, heat conduction of external low temperature to the accumulated water containing cavity is remarkably reduced, and accumulated water is prevented from being frozen.

The invention discloses an anti-freezing type efficient air temperature heat exchanger for circulating water cooling, and belongs to the technical field of air temperature heat exchangers. An elastic sensing diaphragm is arranged to serve as a triggering element of an icing state, and only when circulating water in a star-shaped heat exchange pipe is frozen and expands, the elastic sensing diaphragm can sense the icing state; the heat transfer core is driven to make contact with the phase change heat storage material in the heat storage pipe through the hydraulic effect, a heat transfer path is conducted, ice melting protection is conducted on the icing position in a targeted mode, in the normal operation state, the heat transfer core is located in the heat insulation sleeve and keeps isolated from the heat storage material, and only little heat is transferred to the heat exchange pipe, so that the ice melting protection is achieved. The normal working temperature of circulating water is not changed, the heat exchange efficiency of the heat exchange pipe and an external medium is not affected, the anti-freezing function and the heat exchange function are not interfered with each other, solar energy is collected through photo-thermal conversion from a heat source, and the solar energy is converted into heat energy to be stored. The problems that energy is wasted and heat exchange is interfered in a traditional continuous heating scheme are solved.

The present invention relates to the field of waterproof detection technology, and discloses a demisting heat dissipation module and a camera. The demisting heat dissipation module comprises: a shell and a refrigerator; the refrigerator is located in the shell, the refrigerator has a cold end and a hot end, the shell is provided with a transparent window, and the hot end is thermally connected to the transparent window. In the above-mentioned demisting heat dissipation module, the refrigerator absorbs and conducts the heat near the cold end to the hot end, and then conducts it to the transparent window. On the one hand, the heat inside the shell is promptly dissipated through the transparent window. On the other hand, whether it is cold end refrigeration or external low temperature environment, it is easy to cause condensation on the transparent window to form water mist or frost. By heating the transparent window, the formation of the above-mentioned water mist or frost can be prevented in advance to affect the normal operation of the camera. Alternatively, when the temperature is too low, the hot end heats the transparent window to heat and melt the ice that has been formed. The above-mentioned structure can simultaneously use the refrigerator to dissipate heat inside the shell, and use the heat of the hot end of the refrigerator to de-ice or prevent ice formation.

The application relates to the technical field of aero-engine testing, and discloses an air inlet dustproof mesh cover assembly and a high-altitude simulation test bench. The air inlet dustproof mesh cover assembly comprises: an air inlet dustproof mesh cover which comprises a support framework and a mesh cover main body covering and fixed outside the support framework, the support framework is internally provided with a hollow air inlet channel, and the support framework is provided with a blowing hole for blowing air to the mesh cover main body; and a pneumatic defrosting device which is suitable for continuously feeding air into the air inlet channel and blowing air to the mesh cover main body through the blowing hole. Through the pneumatic defrosting device, the ice and frost on the mesh cover main body can be removed in real time, the screen mesh of the mesh cover main body can be dredged, and the phenomenon of frost blocking the mesh holes can be reduced or avoided, manual defrosting is not needed, the test is not interrupted, the icing test efficiency is improved, the energy consumption is reduced, the test continuity is ensured, the problems of frost blocking the mesh holes of the existing air inlet dustproof mesh cover and manual defrosting needing to pause the test are effectively solved.

The utility model relates to the technical field of water heaters, in particular to an anti-freezing water heater which comprises a shell, a heat exchanger is arranged in the shell, a water inlet pipe and a water outlet pipe are communicated on the heat exchanger, the water inlet pipe extends to the outer side of the shell, a ventilation pipeline is arranged on the water inlet pipe, and a water outlet pipe is arranged on the ventilation pipeline. An air inlet pipeline is detachably connected to the ventilation pipeline, the water heater further comprises an external fan, an air outlet of the external fan directly faces the air inlet pipeline, after the water heater is used, air is supplied to the air inlet pipeline through the external fan, the problems of water accumulation and freezing in the pipeline can be solved, the internal space of the water heater is not occupied, and the water heater is convenient to use. The occupied space of the water heater can be reduced, the fan is easy to replace, and the maintenance cost is low.

1. The name of the design product: water tap anti-freezing cover. 2. The use of the design product: the design product is used to wrap the water tap to prevent it from freezing. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view 1. 5. Other circumstances that need to be explained: the design is a partial protection design, and the area represented by the solid line in the view is the part to be protected.

The application discloses an artificial frosting refrigeration device and a use method thereof, and belongs to the technical field of vegetable cultivation. The device comprises a power module, an AC-DC converter, a DC-DC converter, a PWM amplification circuit, a high-power single-phase full-bridge inverter circuit, an ultrasonic atomization module, a heat tracing band, a water treatment module, a local cooling module and a sensing and control module. The ultrasonic atomization module atomizes and sprays water mist to the vegetable leaf surface, and the local cooling module locally cools the leaf surface to form a frost layer; the heat tracing band prevents the water body from freezing; the water treatment module sterilizes and disinfects the water source; the sensing and control module comprises an automatic frequency tracking unit and a cold exposure cumulative amount calculation protection unit. The use method comprises initialization, water treatment, temperature and humidity monitoring, leaf surface cooling, frequency tracking, atomization spraying, frost layer control and ending steps. The application enables the vegetables to obtain the taste and flavor of "post-frost vegetables" in a non-winter environment.

The utility model discloses a novel channel water level monitoring station, which relates to the technical field of water level monitoring and comprises a channel body, a water containing tank is arranged in the channel body, channel water is arranged in the water containing tank, a pre-buried tank and a groove are further arranged in the channel body, the groove is communicated with the pre-buried tank and the water containing tank, the bottom end of the groove is positioned below the water containing tank, and the water containing tank is arranged in the channel body. One end of the sensor conduit is located in the pre-buried groove, and the other end of the sensor conduit is located in the groove. According to the utility model, the design structure is reasonable, the pressure sensor is arranged in the tip of the groove, and the distance between the pressure sensor and the inner bottom wall of the water containing groove is at least 70cm, so that freezing damage to the sensor caused by freezing of water in a channel in winter in the north is effectively avoided, the sensitive induction crystal is protected from being influenced by low temperature and freezing, and the service life of the sensor is prolonged. The service life of the sensor is prolonged, meanwhile, the overall reliability and stability of the monitoring system are improved, and it is guaranteed that water level data can be accurately obtained under the extreme weather condition.

The utility model provides an anti-freezing device for breeding down producing goats in a high altitude area. Comprising a water tank; the device is characterized in that one end of the water tank is fixedly connected with a water supplementing tank, the other end of the water tank is fixedly connected with a control box, the top of the water supplementing tank is provided with a locking set, the lower end of the locking set is fixedly connected with a connecting line, the lower end of the connecting line is fixedly connected with a floating ball, and the lower end of the floating ball is fixedly connected with a connecting rod. A conical plug is fixedly connected to the lower end of the connecting rod, an external water pipe is arranged at the bottom end of the water supplementing tank, heating boxes are arranged on the two sides of the water tank, and a temperature controller is arranged at the bottom in the water tank. The goat water heater has the advantages that when the water temperature reaches the set temperature suitable for drinking of goats, the temperature controller cuts off the circuit to stop heating of the heating pipe, the working principle similar to that of a water dispenser can not only achieve the purpose of preventing water from freezing, but also prevent the water temperature from being too high, and meanwhile more electric energy is saved.

The utility model provides an anti-freezing cooling tower, which relates to the technical field of cooling towers and comprises a tower body, a water inlet pipe arranged on one side of the tower body, a water outlet pipe arranged on one side of the tower body, an exhaust pipe arranged on one side of the tower body and an anti-freezing device arranged on one side of the tower body. An anti-freezing device is arranged on the surface of the tower body, a protection device is arranged on the side, close to the exhaust pipe, of the tower body, the anti-freezing device comprises a heat preservation cover, a rectangular barrel is fixedly connected to one side of the heat preservation cover, a screw hole block is connected to the inner wall of the rectangular barrel in a sliding and inserting mode, and the screw hole block is fixedly connected with the tower body. And the temperature in the tower body is gradually increased, so that the condition that the normal operation of parts is hindered by ice layers due to freezing of residual water spots in the tower body caused by lower temperature when the tower body is in an idle state in a cold area is reduced, and the use efficiency of the tower body in a cold environment is improved.

This utility model discloses a temporary fire-fighting water return and antifreeze device for construction sites, including a fire-fighting water tank and multiple fire hydrants. The bottom and top of the fire-fighting water tank are connected to an outlet pipe and a return pipe, respectively. The outlet pipe is connected to a water supply network. The multiple fire hydrants are installed on the water supply network, and the fire hydrants are connected to the internal channels of the water supply network. This utility model sets two preset water temperature values ​​and implements two return water circulation modes depending on the situation in low-temperature environments. Mode 1 uses a return water pump to circulate the fire-fighting water, improving its activity. Mode 2, based on the recycling circulation, further incorporates a booster pump, an electric heater, and a stirrer to form a heater structure inside the fire hydrant's internal cavity. This heater participates in the water circulation, providing a heating and ice-melting effect, increasing water pressure, and improving the efficiency of the circulating water flow rate. This solves the problem that fire-fighting water easily freezes in pipes in low-temperature environments, leading to the inability to discharge fire-fighting water and the easy freezing and cracking of pipes.

The invention discloses a pile foundation anti-freezing and anti-corrosion device and a using method, and belongs to the field of wharf pile foundation anti-freezing and anti-corrosion. The pile foundation anti-freezing and anti-corrosion device comprises a ship berthing component installed on a pipe pile and used for ship collision prevention and a constant-temperature module used for preventing the pipe pile from freezing, and the constant-temperature module is installed in a splash zone and an icing zone on the pipe pile; the berthing component is installed on the edge of a wharf. A power generation module and a battery are further arranged in the pipe pile, kinetic energy generated when the berthing component is impacted is converted into electric energy, and a water spraying module used for removing pollutants on the outer wall of the pipe pile is further arranged on the pipe pile. According to the device, the berthing mechanism and the power generation module are arranged, kinetic energy generated when a ship collides on the berthing mechanism is converted into electric energy, the electric energy is stored in a battery and used by the constant-temperature module, the constant-temperature module can avoid freeze-thaw circulation of the pipe pile, the durability of the pipe pile is improved, the water spraying module is further arranged on the pipe pile, and in the process of converting the kinetic energy into the electric energy, the water spraying module can spray water. Seawater in the piston cylinder is sprayed out, pollutants attached to the outer wall of the pipe pile are removed, and the pipe pile is prevented from being corroded by the pollutants.

The utility model discloses a frost crack prevention instant heating device. The instant heating device comprises an instant heating device body, a water inlet pipe is arranged at one end of the instant heating device body, a water outlet pipe is arranged at the other end of the instant heating device body, a water flow pipeline allowing water flow to pass through is arranged between the water inlet pipe and the water outlet pipe, and a heating pipe is inserted into the water flow pipeline. The elastic sealing cover covers the opening of the water flow pipeline, and one end of the elastic sealing cover extends towards the heating pipe and is provided with a buffer rod; the buffer rods can absorb internal stress generated by expansion through self deformation when water in the water flow pipeline freezes and expands, and pipeline breakage caused by stress concentration is avoided. When water in the water flow pipeline freezes and expands, pressure generated by volume increase acts on the elastic sealing cover and the buffer rod; after the ice is melted, the buffer rod restores under the action of resilience force of the material, so that the device can be continuously used.

The invention discloses a water mixing system with a frost crack prevention technology, and belongs to the technical field of bathroom hardware. The water mixing system comprises a shell assembly, a water mixing valve is arranged on one side of the shell assembly, and a first water inlet channel, a second water inlet channel and a water mixing channel are formed in the shell assembly; the water outlet side of the first water inlet channel and the water outlet side of the second water inlet channel are communicated with the water mixing valve, the water outlet side of the water mixing valve is communicated with the water inlet side of the water mixing channel, at least one air trapping cavity is formed in the shell assembly, and the volume of the air trapping cavity accounts for 15%-20% of the total volume of the first water inlet channel, the second water inlet channel and the water mixing channel. The air trapping cavity is formed in the shell assembly, sufficient buffer space is provided for frozen and expanded water, the valve body is prevented from being broken from the source, and meanwhile the stability of the water mixing adjusting function is guaranteed.

The utility model discloses an anti-freezing cracking waterway and a water outlet device, wherein an anti-freezing cracking waterway comprises a water-passing assembly, a fastener and an elastic member; the water-passing assembly comprises a waterway body made of plastic material; the waterway body is provided with a water flow channel, the waterway body is provided with a pressure relief hole connected to the water flow channel, and the fastener is fixed to the waterway body; the elastic member is placed between the fastener and the waterway body and is used to block the pressure relief hole, and the elastic member is suitable for elastic deformation to open the pressure relief hole when the hydraulic pressure in the waterway body is greater than a threshold value. The utility model provides an anti-freezing cracking waterway and a water outlet device, wherein the anti-freezing cracking waterway can effectively release the pressure generated by ice expansion, and avoid damage to the plastic waterway body and matching parts due to ice formation in cold weather. At the same time, the assembly is adaptable to narrow spaces and has a small working stroke.

1. Name of the Design Product: Anti-freezing Cover for Faucet. 2. Use of the Design Product: This design product is used to wrap around the faucet to prevent freezing. 3. Design Key Points of the Design Product: Lies in the shape. 4. Picture or Photo that Best Illustrates the Design Key Points: Stereogram.

The utility model provides anti-freezing portable eyewash equipment. The anti-freezing portable eyewash equipment comprises a shell, a vacuum suction device, a water tank and a spray head assembly, the water tank is arranged in the shell, and a heating device is arranged on the side wall of the water tank and used for heating flushing water stored in the water tank; the bottom of the water tank is of an inclined structure, the height of the bottom of the water tank is gradually reduced from one side to the other side through the inclined structure, and one end of the vacuum suction device communicates with the lowest side of the bottom of the water tank. The spray head assembly is located outside the shell and communicates with the other end of the vacuum suction device. By adopting the design of a vacuum suction structure and an inclined water tank, a self-emptying anti-freezing system is formed, the heating effect of a heating area is achieved, the problems that residual water in the water tank and a pipeline freezes in winter and flushing water freezes easily are solved, normal use of equipment in a low-temperature environment is achieved, the maintenance cost and the maintenance frequency are reduced, and the service life of the equipment is prolonged. And reliability and stability are improved.