180results about How to "Prevent frostbite" patented technology

The multifunctional environment-friendly and energy-saving flowerpot comprises a pot body and a tray, a boss is arranged on a bottom layer plate of an inner cavity of the pot body, and a drainage hole is formed in the middle of the boss; one end of the honeycomb ceramic tube is communicated with the inner cavity of the pot body, the other end of the honeycomb ceramic tube penetrates through the drain hole and is flush with the lower surface of the bottom plate of the pot body or is sleeved on the boss, the thickness of the wall of the honeycomb ceramic tube is 30-40% of the diameter, the porosity of the honeycomb ceramic tube is 40-70%, and the honeycomb ceramic tube contains pelelith and chitin. According to the method, frequent watering is not needed, soil can be always kept moist and humid for growth of the plant bonsai for a long time, water accumulation is avoided, hot air generated by water evaporation can be discharged in time when the bonsai is heated at high temperature, and the bonsai cannot be dried up and heated when the room temperature rises; therefore, the potted landscape can grow normally for a long time, the pot body is bactericidal and antibacterial, water molecules are refined to be conveniently absorbed by a root system, and the functions of constant temperature, heat preservation, ventilation and the like are achieved.

The invention relates to the technical field of cell resuscitation devices, in particular to a batch acceleration cell resuscitation device which comprises a mounting base, a resuscitation box is arranged on the mounting base, and a batch resuscitation mechanism for simultaneously performing water bath heating on a plurality of cryopreservation tube bodies is arranged in the resuscitation box. A water bath heating mechanism is arranged on the inner side wall of the resuscitation box body, an automatic feeding mechanism is arranged at the upper end of the batch resuscitation mechanism, a resuscitation auxiliary mechanism for disinfecting the outer surfaces of the cryopreservation tubes is arranged at the upper end of the resuscitation box body, and the automatic feeding mechanism comprises a rectangular convex block movably mounted on a mounting disc. The automatic feeding mechanism is arranged, the feeding hopper and the L-shaped pushing plate are matched with each other, the cryopreservation pipe body is always in a horizontal state in the feeding process, liquid nitrogen in the external rotation cryopreservation pipe can automatically flow out before water bath heating, and the cryopreservation pipe can be prevented from exploding in the water bath heating process to a certain extent.

The severed finger storing and transferring device comprises a cup body and a cup cover, the outer wall of the cup body and the outer wall of the cup cover are both made of heat insulation materials, and the cup cover covers a cup opening of the cup body. A storage cavity filled with cold water is arranged in the cup body, an opening of the storage cavity faces upwards and is communicated with a cup opening, and severed fingers are placed in the storage cavity from the cup opening. A plug is arranged below the cup cover, and the plug is placed in the opening of the storage cavity after the cup cover is closed, so that the severed fingers are completely immersed in cold water in the storage cavity for refrigeration. A display screen is arranged on the cup cover, a sensor is arranged on the end face of the plug and electrically connected with the display screen, and the display screen displays the temperature value of the storage cavity. After the cup cover is closed, the severed finger is pushed by the chock plug to be completely immersed in cold water of the storage cavity for refrigeration; the temperature value of the storage cavity is displayed through the display screen on the cup cover, medical staff can monitor the refrigeration temperature of the severed finger in real time by checking the display screen, the refrigeration temperature is kept at about 4 DEG C, the life of the severed finger is prolonged, and the severed finger can be prevented from being frozen due to the too low refrigeration temperature.

The invention belongs to the field of botanical fungicide preparation, and particularly relates to a winter Chinese cabbage fungicide and a preparation method thereof. A potassium hydroxide solution is fully adsorbed by a prepared porous matrix through an esterification cross-linking reaction, an obtained efficient sterilization nanoparticle mixed viscous solution is extracted and concentrated to prepare a sterilization antiviral natural extract, and the prepared efficient sterilization suspension can effectively prevent and treat winter cabbage diseases; after polydimethylsiloxane and propylene glycol are mixed and emulsified, the disease-preventing and resistance-improving powder obtained through freeze drying is mixed in a formed breathable emulsion, and the prepared disease-preventing and resistance-improving composition can enable the Chinese cabbages in winter to maintain disease resistance for a long time; the mixture for promoting plant growth is uniformly mixed with the efficient sterilization component, and the prepared winter Chinese cabbage bactericide can efficiently prevent and treat diseases caused by pathogenic microorganisms, improves the disease resistance of plants, has biocompatibility and does not damage ecological balance.

The utility model discloses a non-destructive detector for a pressure pipeline, which relates to the technical field of pressure pipeline detection and comprises an operating platform, a lifting component is arranged at the top end of the operating platform, a detection component is arranged at the top end of the operating platform, and the lifting component comprises two supporting plates. The top ends of the two supporting plates are fixedly connected with the operation table, a first motor is arranged at one end of one supporting plate, the output end of the first motor penetrates through one supporting plate and is fixedly connected with a rotating rod, and the two ends of the rotating rod are rotationally connected with the ends, opposite to each other, of the two supporting plates correspondingly. According to the nondestructive detector for the pressure pipeline, provided by the utility model, the pressure pipeline can be automatically put into water for detection, frostbite caused when the pipeline is manually put into the water in winter is prevented, and the pressure pipeline can be inflated, detected and fixed in the water, so that the detection efficiency is improved, and the detection cost is reduced. And the pipeline is prevented from being damaged during detection.

The invention belongs to the technical field of cold-proof equipment, and discloses green plant winter cold-proof equipment which comprises a fixing mechanism, the fixing mechanism is composed of two clamping assemblies, a conveying mechanism is arranged on the outer side of the fixing mechanism, each clamping assembly comprises two fixing plates, and the two fixing plates are symmetrically arranged in an up-down structure; two reinforcing blocks are symmetrically and fixedly connected between the two fixing plates, and rotating rods are fixedly connected to the fixing plates. Through the synergistic effect of the heating clamping plate and the conveying mechanism, continuous and uniform heating is provided, and freezing damage is effectively prevented; due to high automation, manual intervention is reduced, and the maintenance efficiency and reliability are improved; healthy growth and survival rate of plants in an extremely cold environment are ensured; the modular design is convenient to install and maintain, and efficient and stable operation can be achieved even in a complex environment. Generally speaking, the system obviously improves the living environment of the plants under the extremely cold condition, ensures normal growth and development of the plants, and has important agricultural and gardening application values.

The invention discloses a vacuum pump water circulation system, which relates to the technical field of petroleum and natural gas industry, and comprises a water storage tank, an oil-water separation tank, a water reservoir, a water pump, a power distribution cabinet, an immersion thermometer, a vacuum pump, an immersion liquid level gauge, a low liquid level switch, a vortex blocking plate, a water supply pump, a tap water supply port, a check valve, a steam-water separation tank, a drainage water receiving port, a vacuum pressure transmitter, a water collecting tank, a vacuum tank, an oil depot, a first oil pump, a second oil pump, a handheld terminal and an automatic control room; the beneficial effects are: by setting the automatic control room to give corresponding alarms and manual operation prompts according to the liquid level changes, the operation intensity is effectively reduced and the human resource allocation is saved; the vacuum pump water circulation is set to avoid the water temperature in the vacuum pump being too high to generate steam affecting the vacuuming efficiency and the temperature being too low to freeze the pump body, and the water circulation saves water resources at the same time; the handheld terminal and the alarm are set so that the operator can start the emergency stop at the first moment when a fault occurs.

The intelligent cold-proof heat preservation cover comprises a cold-proof heat preservation cover body, a heat supply device and a temperature control device are arranged on the inner side of the cold-proof heat preservation cover body, and an energy storage device is arranged on the outer side of the cold-proof heat preservation cover body. According to the intelligent cold-proof heat preservation cover capable of avoiding soil burying of the grapes, when the intelligent cold-proof heat preservation cover is used, the cold-proof heat preservation cover directly covers trimmed grape vines, use is convenient, and the problem that time and labor are wasted due to manual soil burying is solved; when the temperature is reduced, the cold-proof heat preservation cover can automatically dissipate heat, the temperature in the cold-proof heat preservation cover is increased, and it is guaranteed that the grape vines can overwinter safely; according to the cold-proof heat preservation cover with the heat supply device, the cold-proof heat preservation cover does not need to be covered with soil, damage to root systems and branches and tendrils caused by repeated soil burying of grape branches every year is reduced, frostbite of the root systems and the branches and tendrils is effectively prevented, and it is guaranteed that the grape vines safely pass through the winter.

The present invention relates to a cryoablation needle with an adjustable targeting area, comprising an adjusting component and a fixing component, wherein the adjusting component can move axially relative to the fixing component to adjust the length of the targeting area: the fixing component comprises a needle rod, a rear-section thermal insulation tube, an air intake pipe and an air return pipe, the rear end of the needle rod is fixedly connected to the front end of the rear-section thermal insulation tube, the needle rod is communicated with the rear-section thermal insulation tube to form a accommodating cavity; the air intake pipe and the air return pipe are both inserted into the accommodating cavity from the rear end of the rear-section thermal insulation tube; the adjusting component comprises a front-section thermal insulation tube and a core shaft, the front-section thermal insulation tube is axially slidably arranged in the accommodating cavity to adjust the length of the targeting area; the air intake pipe passes through the front-section thermal insulation tube and extends into the needle rod; the core shaft is inserted from the rear end of the rear-section thermal insulation tube and linked with the front-section thermal insulation tube. The present invention solves the technical problems of the existing cryoablation needles that the treatment operation is complicated and the surrounding healthy tissues are easily damaged due to the fixing of the targeting area.

The utility model relates to the technical field of medical auxiliary supplies, in particular to an abdominal hypodermic injection positioning card which comprises a positioning card body and a marking disc, the marking disc is fixed in the center of the positioning card body, seven subareas are arranged on the marking disc in the circumferential direction, and the seven subareas are marked with weekly days to weekly days at intervals respectively. A plurality of injection positioning holes are respectively formed in the areas, corresponding to the seven subareas, of the positioning card body. According to the scheme, the injection positioning holes in the positioning card body are divided into seven different areas through the marking disc, the injection positioning holes in the corresponding areas are selected for injection according to the specific time of the injection day, the problem of continuous repeated injection at the same part can be avoided, repeated use can be achieved, and the cost is reduced. The problem that an existing abdominal subcutaneous injection positioning clamp cannot be repeatedly used is solved.

This invention provides a refrigerator, including a cabinet defining a first and second refrigeration compartment arranged in a left-right direction; a refrigeration cavity disposed within the first refrigeration compartment; an air inlet channel disposed between the second refrigeration compartment and the refrigeration cavity; an air outlet assembly disposed within the second refrigeration compartment and spaced from the rear wall of the second refrigeration compartment, the air outlet assembly communicating with the air inlet channel to guide cold air from the refrigeration cavity to the second refrigeration compartment; and a return air channel disposed between the second refrigeration compartment and the refrigeration cavity, with the inlet of the return air channel located between the air outlet assembly and the rear wall of the second refrigeration compartment. The refrigerator of this invention facilitates the flow of cold air towards the bottom of the second refrigeration compartment as much as possible, thereby improving the uniformity of the refrigeration effect within the second refrigeration compartment. Furthermore, when refrigeration is stopped, cold air flow is prevented from reaching food, thus preventing the food from freezing.

The application relates to the field of traditional Chinese medicinal materials, in particular to a traditional Chinese medicinal material fresh-keeping cold storage device and method. The traditional Chinese medicinal material fresh-keeping cold storage device can facilitate the layered placement of traditional Chinese medicinal materials and reduce the working time of people in a low-temperature environment. The traditional Chinese medicinal material fresh-keeping cold storage device and method comprise a refrigerator, a refrigeration module, a maintenance door, an automatic moving-out mechanism and an inner wall cleaning mechanism; the refrigerator top is connected with the refrigeration module; the refrigerator rear side is rotationally connected with the maintenance door; the refrigerator is internally provided with the automatic moving-out mechanism; and the refrigerator is internally provided with the inner wall cleaning mechanism. The first servo motor drives the first lead screw to rotate, so that the object shelf automatically slides, thereby facilitating people to quickly place the traditional Chinese medicinal materials, reducing the working time of people in the refrigerator, avoiding the occurrence of frostbite, and the layered design of the object shelf can avoid the stacking of the traditional Chinese medicinal materials, reducing the possibility of moisture absorption or extrusion damage of the traditional Chinese medicinal materials.

The utility model relates to the technical field of instrument boxes, in particular to a perspective instrument box capable of automatically removing fog / frost in a low-temperature environment, which comprises an instrument box main body, a sealing component, a warm keeping component and a power supply line, the sealing component comprises a door body, a transparent window is arranged at the upper end of the door body, and the transparent window is arranged at the lower end of the door body. Air spraying pipes are arranged at the positions, located at the two ends of the transparent window, in the door body, air inlet pipes are arranged at the lower ends of the air spraying pipes, heating components are installed on the lower sides of the air inlet pipes, an air outlet net is arranged on the front side of the door body, the instrument box body comprises a box body, and an instrument is installed in the box body; and a sealing frame is arranged at the front end in the box body. According to the utility model, fog / frost on the transparent window is automatically removed in a manner of spraying hot air through the air spraying pipe, the removal operation is convenient and fast, the transparent window is not damaged in the fog / frost removal process, and the cable is warmed through the warm keeping component, so that the power supply line is prevented from being frozen to be damaged in a low-temperature environment.

The utility model provides a new energy automobile air conditioner filling valve which comprises a valve body and a valve element located in the valve body, one end of the valve body is further provided with a branch pipe used for outputting refrigerants, the filling valve further comprises a pressure relief assembly, the pressure relief assembly comprises a pressure relief cover, a base, an air inlet pipe, an air outlet pipe and a valve shaft, and the pressure relief cover and the base are fixedly installed on the top of the valve body respectively. A valve plate is fixedly connected to the base, one end of the air inlet pipe penetrates into the base and is located at a through groove of the valve plate, the other end of the air inlet pipe penetrates into a cavity of the valve body, an air outlet pipe and a valve shaft penetrate through the top of the pressure relief cover, and a cavity of the air outlet pipe is communicated with the cavity in the pressure relief cover. The valve shaft is located in the center of the pressure relief cover and movably connected with the pressure relief cover through the bearing, the fixing rod is located on one side of the valve shaft, high-pressure refrigerants are discharged through the air inlet pipe, the through groove, the pressure relief cover and the air outlet pipe, internal pressure is reduced, residual refrigerants are discharged in time, the valve body is far away from the air outlet pipe, and it is avoided that the residual refrigerants are sprayed out and extremely prone to frostbite workers.

The utility model relates to the field of yak feeding technology, and specifically discloses a yak automatic feeding device with windproof and warm keeping functions, which comprises a fixed bottom pile, the lateral surface of which is provided with a bottom frame, bottom baffles are arranged between the bottom frames, the upper surface of the bottom baffle is fixedly connected with a spiral feeder, the upper end of the spiral feeder is provided with a feed storage bin, one end of the spiral feeder is fixedly connected with a feed trough, the upper end of the fixed bottom pile is provided with a vertical frame, and the lateral surface of the vertical frame is fixedly connected with a positioning insert block. The yak automatic feeding device with windproof and warm keeping functions, the bottom baffle, the side baffle and the top baffle of the device are all double-layer color steel plate structures, and a rock wool thermal insulation layer is arranged in the interlayer, which can effectively prevent strong winds in winter on the Qinghai-Tibet Plateau from invading, reduce heat loss of the feed trough, avoid feed freezing and caking, and prevent yak's mouth and nose from being frostbitten due to low temperature.

The invention relates to the field of electric appliances, and particularly provides a refrigeration equipment control method and refrigeration equipment. The control method comprises the following steps that the temperature rise speed in a fresh-keeping chamber is obtained; judging whether the temperature rising speed reaches a temperature rising threshold value or not; if yes, refrigerating airflow is at least conveyed into the fresh-keeping chamber; if not, refrigerating airflow is conveyed to the periphery of the fresh-keeping chamber; and when the refrigeration airflow is conveyed into the fresh-keeping chamber, air in the fresh-keeping chamber can flow out. According to the temperature rise condition in the fresh-keeping chamber, the refrigeration airflow can be directly conveyed into the fresh-keeping chamber or conveyed to the periphery of the fresh-keeping chamber, so that food materials in the fresh-keeping chamber can be prevented from being frozen, and the refrigeration effect of the fresh-keeping chamber can be guaranteed.

The invention discloses a circulation type cold compress device for bone injury nursing and a control system. The circulation type cold compress device comprises an adjusting mechanism and a cold compress plate. The adjusting mechanism comprises a rotating ring, a connecting rod, a sliding groove, a gear, a sliding block, a motor, a base, a sealing ring and a shell. A hole is formed in the middle of the base, a sealing ring is arranged in the hole, a motor is arranged beside the sealing ring on the base, the base is sleeved with a shell, four sliding groove installation sliding blocks are arranged on the base in an array mode, and connecting rods are arranged to be rotationally connected with the sliding blocks. The other ends of the connecting rods are rotationally connected with rotating rings respectively; an output shaft of the motor is connected with a gear; a hole is formed in the middle of the rotating ring; an inner gear meshing gear is arranged on one side of the rotating ring; the gear rotates to drive the rotating ring to rotate, so that the connecting rod pushes or pulls the sliding ring to slide along the sliding groove, and the effect of adjusting the distance between the cold compress plates is achieved.

The utility model discloses a positioning mechanism for yellow peach transportation, which relates to the technical field of fruit transportation, and comprises a transportation box body and a box cover plate, the transportation box body is internally provided with a plurality of placing compartments, the right side walls of the plurality of placing compartments are embedded with sponge isolation pads, and the sponge isolation pads are embedded into the right side walls of the plurality of placing compartments. Two compression springs are installed on the left side walls of the multiple placement compartments, the other ends of the two compression springs are fixedly connected with positioning blocks, and sponge pads are embedded in the outer walls of the right sides of the positioning blocks. According to the yellow peach transport box, the yellow peaches are sequentially placed in the multiple placing compartments through the transport box body and the multiple placing compartments, the yellow peaches can be positioned and clamped between a positioning block and a sponge cushion under the action of two compression springs through the positioning block and the sponge cushion, and the stability of the yellow peaches placed in the placing compartments is improved through the arrangement of a first anti-skid cushion; the yellow peaches are prevented from being damaged due to shaking and collision in the placing compartments, so that the quality of the yellow peaches is improved.

The utility model discloses a cold compress device for orthopedic wounds, which belongs to the technical field of orthopedic wounds, and is characterized by comprising a box body, a cooling component is arranged on the inner side of the box body, a circulating component is arranged on the left side of the box body, a water adding pipe is arranged at the top of the box body, and a drainage pipe is arranged on the rear side of the box body. In the process of cold compress of the wounded part of a patient by a medical worker, water is added into the box body through a water adding pipe, then a cooling assembly is arranged, the medical worker takes out the cooling box by pulling a handle, slides a sliding cover to drive a sliding block to slide in a sliding groove, and then ice blocks are added, so that the water can be cooled, and the cooling effect is improved. Therefore, when cold compress is conducted on a patient in the later period, it is not needed to directly place ice cubes on the limb trauma part or wrap the ice cubes with isolation cloth or conduct cold compress treatment on the limb trauma part with materials similar to the ice cubes, and use of the patient is facilitated.

The invention discloses an air conditioner control method and device, an air conditioner, a storage medium and a computer program product, the air conditioner comprises at least one terminal device, the terminal device comprises a target anti-freezing terminal device, and the target anti-freezing terminal device is connected with a water valve and a water pump through pipelines; the method comprises the steps of determining whether a water valve needs to be prevented from being frozen or not according to the outdoor environment temperature and the closing duration of a target anti-freezing terminal device under the condition that the air conditioner operates in a heating mode and the target anti-freezing terminal device is closed; if it is determined that the water valve needs to be prevented from being frozen, the water valve and the water pump are opened, and then the water valve and the water pump are closed after the opening duration of the water valve and the water pump reaches the preset operation duration. According to the scheme, whether the water valve needs to be prevented from freezing is determined according to the outdoor environment temperature and the closing duration of the end device, the accuracy of anti-freezing control is improved, the water valve is prevented from being frozen, and the stability of the air conditioner is improved.

The present invention relates to a curved adjustable cryoablation needle, comprising an adjusting component and a fixing component, wherein the adjusting component can move relative to the fixing component to adjust the length of a target area: the fixing component comprises a needle rod, a rear-section thermal insulation tube, an air intake pipe and an air return pipe, wherein the rear-section thermal insulation tube is a curved tube, the rear end of the needle rod is fixedly connected to the front end of the rear-section thermal insulation tube, the needle rod is communicated with the rear-section thermal insulation tube to form a containing cavity; the air intake pipe and the air return pipe are both inserted into the containing cavity from the rear end of the rear-section thermal insulation tube; the adjusting component comprises a front-section thermal insulation tube and a core shaft, wherein the front-section thermal insulation tube is axially slidably arranged in the containing cavity to adjust the length of the target area; the air intake pipe passes through the front-section thermal insulation tube and extends into the needle rod; the core shaft is inserted from the rear end of the rear-section thermal insulation tube and fixedly connected to the front-section thermal insulation tube through an intermediate connecting tube, and the intermediate connecting tube can be bent and arranged in the rear-section thermal insulation tube, thereby solving the technical problems of the existing cryoablation needles that the treatment operation is complicated and the surrounding healthy tissues are easily damaged due to the fixing of the target area.

The utility model relates to the technical field of pharmaceutical auxiliary equipment, in particular to a high-efficiency condenser for raw material medicine production, which comprises a fixed frame with a mounting frame on the inner side, a plurality of heat exchange sheets are arranged in the mounting frame, and the mounting frame and the plurality of heat exchange sheets are jointly provided with a cooling pipe and a heat exchange pipe. Clamping blocks are fixed at two ends of the lower surface of the mounting frame; a bidirectional screw rod is rotationally mounted in the upper end of the mounting frame; according to the utility model, four fixing points are arranged, so that compared with the traditional scheme that only two fixing points are arranged, the fixing effect after the condenser main body is mounted is better when the scheme is used, and the condenser main body can be mounted and dismounted only by operating one bidirectional screw rod by personnel, so that the working efficiency is greatly improved. And compared with a traditional scheme that operation needs to be carried out on two places, the scheme is more convenient and efficient during use.

The utility model provides a cooling physiotherapy cap, which relates to the technical field of physiotherapy caps and comprises a cap body, an input pipe and an output pipe are fixedly connected to the outer surface of the cap body, a hook-and-loop fastener is arranged on one side of the cap body, a protective device is arranged in the cap body and comprises an air bag cushion, and the air bag cushion is arranged in the cap body. An air conveying pipe is arranged on one side of the air bag cushion, an air bag ball is arranged at the end, away from the air bag cushion, of the air conveying pipe, an air outlet pipe is arranged at the top end of the air bag cushion, and the outer surface of the air outlet pipe is in threaded connection with a cover cap. Air in the air bag ball can be input into the air bag cushion through the air conveying pipe by pressing the air bag ball, so that the air bag cushion is expanded, the distance between the inner wall of the cap body and the head of a patient is increased, and the inner wall of the cap body does not make direct contact with the head of the patient through the air bag cushion; frostbite of the head skin of the patient caused by too low temperature of the inner wall of the cap body is avoided as far as possible.

The refrigeration air duct assembly and refrigerator of this application include an air duct housing, an evaporator, and a fan. The air duct housing forms a first air duct, a second air duct, and a diversion air duct. The first air duct and the second air duct are connected. The diversion air duct is independently arranged relative to the first and second air ducts. The air duct housing is provided with a first air outlet and a second air outlet, which are correspondingly arranged and surround the corresponding first air outlet. The second air outlet is connected to the diversion air duct, and the first air outlet is connected to the second air duct. The evaporator is housed in the first air duct and connected to the air duct housing. The fan is arranged in the passage connecting the first and second air ducts and connected to the air duct housing. This allows the refrigeration air duct assembly to mix some of the hot air in the refrigerator compartment with the low-temperature cold air passing through the evaporator in advance. This mixing process can significantly increase the final outlet temperature of the air delivered into the refrigerator compartment.

The application relates to the technical field of heat pumps, and provides a drainage device and a heat pump system. The drainage device comprises a pipeline assembly, a switch assembly, a magnetic force assembly and a counterweight. The pipeline assembly comprises a refrigerant communication pipe and a drainage pipe. The switch assembly comprises a first switch arranged on the refrigerant communication pipe and a second switch arranged on the drainage pipe. One of the first switch and the second switch is a power-on closed switch, and the other of the first switch and the second switch is a temperature memory switch. The magnetic force assembly comprises a force applying piece and an opening and closing piece which are magnetically matched with each other. The opening and closing piece is slidably arranged in the drainage pipe to open or cut off the drainage pipe. The gravity and the refrigerant from the refrigerant communication pipe can drive the counterweight to move, and the counterweight drives the force applying piece to move to drive the opening and closing piece to slide. In the weather with low temperature, when power failure or the user mistakenly turns off the power supply, the drainage device can automatically drain the water in the water circuit of the heat pump system.

The invention relates to the field of vegetable planting, in particular to a balcony vegetable rack drip irrigation device. According to an existing drip irrigation device, when the temperature changes, the drip irrigation water amount on vegetables is difficult to change, and drip irrigation on the vegetables is inconvenient to stop when the air temperature is lower than 0 DEG C. A balcony vegetable rack drip irrigation device comprises a water tank and the like. The bottom of the water tank is fixedly connected with a connecting bulb tube, the connecting bulb tube is communicated with the water tank, and the bottom of the connecting bulb tube is fixedly connected with a connecting hose. An operator can introduce water into the water tank through the water inlet pipe, then the water drips onto vegetables through the branch pipe, when the air temperature rises or falls, the downward moving speed of the water pressing rod driven by the balancing weight is increased along with the rising of the temperature or slowed down along with the falling of the temperature, and the drip irrigation speed of the water can be increased or slowed down along with the rising or falling of the air temperature; therefore, drip irrigation can be carried out on the vegetables according to the water demand of the vegetables at different temperatures, and the drip irrigation effect on the vegetables is better.

The utility model discloses a low-temperature sample sorting platform which comprises a sorting box body, an operation table, a sample sorting bin and a liquid nitrogen filling bin are arranged in the sorting box body, a to-be-sorted area and a scanning recognition area close to the to-be-sorted area are arranged on one side of the operation table, and a cryopreservation area is arranged on the side, away from the to-be-sorted area, of the operation table. A plurality of cryopreservation boxes are arranged in the cryopreservation area; a mechanical arm is further arranged above the sorting box body, a clamping jaw is arranged at the execution end of the mechanical arm, and the clamping jaw is used for picking up cryopreservation tube samples located in the to-be-sorted area and moving the cryopreservation tube samples to the scanning recognition area and the cryopreservation area; a heat preservation cover capable of being opened and closed is further arranged above the sorting box body. The low-temperature sample sorting platform not only can provide a low-temperature operating environment, but also can provide mechanical and automatic operation, and meanwhile can provide a low-temperature storage space after sorting operation is completed, so that samples can be sorted and stored according to requirements.

The multifunctional mask comprises a mask body attached to the face contour of the human body, the mask body is sequentially provided with a first non-woven fabric layer, a melt-blown fabric layer and a second non-woven fabric layer from outside to inside, and the second non-woven fabric layer is provided with a silk cotton piece and a cooling function part corresponding to the lips and the cheeks of the human body respectively. The cooling function part comprises a cooling containing cavity layer, a hydrocolloid dressing layer and a first release paper layer which are sequentially arranged from outside to inside, the cooling containing cavity layer is divided into four adjacent and mutually independent containing cavity bags covering the left face, the left lower jaw, the right face and the right lower jaw respectively with the incisor as the central axis, and a peelable sealing strip is arranged in each containing cavity bag; the interior of the containing cavity bag is divided into a first cavity and a second cavity through the strippable sealing strip, and sodium carbonate powder and ammonium nitrate solution are contained in the first cavity and the second cavity respectively. The oral and maxillofacial surgery postoperative cooling device can achieve accurate positioning and cooling of an oral and maxillofacial surgery postoperative operation part of a patient, facilitates local cold compress analgesia, hemostasis and anti-inflammation of the patient, and improves comfort.

The utility model relates to the technical field of vaporizer defrosting, in particular to an automatic liquid oxygen vaporizer defrosting device. The defrosting device of the automatic liquid oxygen gasifier comprises a first rolling brush, a second rolling brush and a driving mechanism. And the first rolling brush is horizontally arranged. And the second rolling brush and the first rolling brush are respectively arranged in parallel at intervals in the horizontal direction and the vertical direction. The driving mechanism is used for controlling the first rolling brush and the second rolling brush to roll and reciprocate in the vertical direction at the same time, frost and snow on the fin heat exchange tubes on the two sides are cleaned, and the moving directions of the first rolling brush and the second rolling brush in the vertical direction are always opposite. Defrosting is carried out in an alternate mode, the pressure on vaporizer components can be reduced, the service life of the vaporizer components is prolonged, the situation that the driving mechanism is damaged due to too large resistance when the first rolling brush and the second rolling brush roll or move up and down is avoided, and reliability is high.

The utility model relates to the technical field of flow meters, and discloses a self-adaptive anti-freezing flow meter which comprises a flange pipe, a flow meter is arranged on the outer wall of the flange pipe in a penetrating mode, an output pipe is fixedly connected to the outer wall of the flange pipe, an input pipe is fixedly connected to one end of the output pipe, a first electromagnetic valve is arranged in the output pipe, and a second electromagnetic valve is arranged in the first electromagnetic valve. A first electromagnetic valve is arranged in the input pipe, a second electromagnetic valve is arranged in the input pipe, a first anti-freezing box and a second anti-freezing box are arranged on the outer wall of the flow meter, a temperature sensor is fixedly connected into the first anti-freezing box, and dehumidification assemblies are arranged in the first anti-freezing box and the second anti-freezing box. According to the self-adaptive anti-freezing flow meter, the flow meter, the output pipe and the input pipe are protected through the first anti-freezing box and the second anti-freezing box, the effect of preventing the flow meter, the output pipe and the input pipe from being frozen is achieved, the problem that the flow meter is prone to being damaged and cannot measure under the condition that the temperature is low in winter is solved, and the practicability of the self-adaptive anti-freezing flow meter is improved.