60results about How to "Increase circulation space" patented technology

The invention discloses a novel low-cost stack-up array liquid refrigeration semiconductor laser and a manufacturing method thereof. The laser comprises a lower base plate, an anode block, micro-refrigeration modules with chips, a cathode block, an upper pressing block and a liquid refrigeration block which are arranged from bottom up in turn. The micro-refrigeration modules with chips are two ormore and stacked up to form a multiple bar series module group, and the lower base plate is provided with side plates on both sides; the anode block, the multiple bar series module group and the cathode block are sequentially stacked up and arranged between the two side plates on the lower base plate, the upper pressing block is arranged on the upper side of the cathode block and fixedly connectedwith upper ends of the two sides plates of the lower base plate, and the upper side of the upper pressing block is fixedly connected with the liquid refrigeration block. The laser has simple manufacturing method and low production cost, and effectively reduces flow resistance of cooling fluid, causes obviously reduced pressure drop of the cooling fluid, has easier sealing of the cooling fluid andstrong heat emission capability, effectively prolongs service life of the semiconductor laser and improves reliability by replacing a traditional micro channel structure with fins.

The invention provides a moisture-proof power distribution box comprising a box body, a drying device, a drying agent and a heating device. A heat conduction pipe is installed in the drying device. A heat conduction medium is arranged in the heat conduction pipe. The heating device is installed in the heat conduction pipe. The heating device heats the heat conduction medium in the heat conduction pipe. The drying agent fills in the space between the heat conduction pipe and the drying device. The drying device is installed in the power distribution box, and the drying agent can effectively absorb the moisture in the air and reduce water vapor in the air entering the power distribution box so as to prevent the water vapor from being accumulated in the power distribution box to generate water drops and damage electrical equipment in the power distribution box. The heating device can heat the drying agent so that the drying agent can be repeatedly used.

The invention discloses a planetary concrete mixer, which comprises a lower barrel body and a plurality of helical ribbon mixing devices, wherein a middle barrel body is connected to the upper part of the lower barrel body; a planetary gear mechanism is arranged in the middle barrel body; a cover plate is arranged at the upper end of the middle barrel body; a mixing drive device is arranged on the cover plate; a mixing input shaft is rotationally connected in the middle of the cover plate; the planetary gear mechanism comprises planetary racks, sun wheels and a plurality of planetary wheels; the planetary racks are connected to the lower end of the mixing input shaft; the sun wheels are sleeved on the mixing input shaft; the upper ends of the sun wheels are connected with the middle barrel body; planetary wheel shafts are arranged on the planetary racks; the planetary wheels are mounted on the planetary wheel shafts; each helical ribbon mixing device comprises two mixing arms; mixing helical ribbons are connected on the inner side surfaces of the two mixing arms; the upper parts of the two mixing arms are connected through a connecting plate; the lower ends of the planetary wheel shafts are connected with the connecting plates; and a vibration mechanism is arranged in the lower barrel body. According to the planetary concrete mixer, the microcosmic uniformity of concrete can be effectively improved.

The invention discloses a novel low-cost single bar liquid refrigeration laser and a manufacturing method thereof. The laser comprises an upper liquid refrigeration block, a connecting strip, an insulating strip, an anode connecting strip, a connecting strip fixing strip, a lower liquid refrigeration block and a micro-anode block. The lower liquid refrigeration block, the micro-anode block, the insulating strip, a cathode connecting strip and the upper liquid refrigeration block are stacked up and connected with each other sequentially from the bottom up; the lower liquid refrigeration block,the micro-anode block, the insulating strip and the cathode connecting strip are respectively and correspondingly provided with liquid feeding through holes and liquid discharging through holes; the upper liquid refrigeration block is provided with a liquid feeding hole and a liquid discharging hole communicated through a connection hole, the liquid feeding through holes are sequentially stacked up to form a liquid feeding passage, and the liquid discharging through holes are sequentially stacked up to form a liquid discharging passage. The laser has advantages of simple manufacturing method,low production cost, low flow resistance and less pressure drop of cooling medium, easy sealing, strong heat emission capability, long service life and high reliability, and the laser can meet high power output heat emission requirements of laser light completely.

The invention discloses a unidirectional drying filter which comprises a barrel (8), wherein the barrel (8) is provided with an inlet and an outlet, a molecular sieve (7) is arranged in the barrel (8), a first filter disc (9) is arranged between the molecular sieve (7) and the outlet, and a spring (4) and a second filter disc (5) are sequentially arranged between the inlet and the molecular sieve (7). The unidirectional drying filter is characterized in that at least one third filter disc (3) is also arranged in the spring (4). The third filter disc is arranged in the spring of the unidirectional drying filter provided by the invention, a bigger flow space is still left after refrigerant enters through the inlet, the flow requirement can be ensured, and meanwhile, the third filter disc is combined with the first and second filter discs, so that the filter capability can be exerted to the maximum extent.

The invention discloses a heat dissipation device of an LED lamp, which comprises a central cylinder and a plurality of heat dissipation fins, wherein the plurality of heat dissipation fins are arranged outside the central cylinder at uniform intervals in a radial pattern by taking the axis of the central cylinder as a center; each heat dissipation fin comprises a first end, a second end opposite to the first end and a middle part positioned between the first end and the second end; and the width of each heat dissipation fin along the direction vertical to the axis of the central cylinder gradually decreases from the first end and the second end to the middle part. In the heat dissipation device of the LED lamp, the heat dissipation fins are designed into shapes gradually decreasing from two ends to the middle part, thereby ventilation space around the heat dissipation fins is increased, resistance on the air flowing among the heat dissipation fins is reduced, and the heat dissipation efficiency of the heat dissipation device of the LED lamp is improved.

The invention relates to a radiating fin of a magnetron; the radiating fin is integrally formed by stamping a metal plate; an anode hole for assembling an anode shell of the magnetron is left on a main board forming the middle part of the radiating fin; the left side and the right side of the radiating fin are respectively sheared, bended and processed into a plurality of radiating blades so as to enlarge a contact area between the radiating fin and flowing air; the radiating blades at the left side and the right side are symmetrically distributed; flow guiding bugles are formed at the periphery of the anode hole on the main board; fixed bending is formed at the tail end of the outer side of each radiating blade; and the radiating fin is characterized in that the thickness of the main board in the middle part of the radiating fin is different from the thickness of the radiating blades arranged at both sides of the radiating fin; and the thickness of the main board is larger than that of the radiating blades. The radiating fin improves the heat conduction efficiency of the main board, more rapidly transmits more heat from the anode of the magnetron to the radiating fin and increases the convective heat exchange capacity of air current, so that the heat accumulated on the radiating fin is more rapidly diffused, thereby reducing the temperature of the anode of the magnetron and leads the working performance of the magnetron to be improved.

The invention discloses an efficient steel and aluminum composite belt oven. The efficient steel and aluminum composite belt oven comprises a first supporting leg and a second supporting leg. An oven body is fixedly connected to the top of the first supporting leg. A heating cavity is fixedly connected to the inner wall of the oven body. A first electric heating wire and a second electric heating wire are arranged in the heating cavity. A first circulating fan is fixedly connected to one end of the oven body, and a second circulating fan is fixedly connected to the other end of the oven body. A motor is fixedly connected to one side of the second supporting leg. According to the efficient steel and aluminum composite belt oven, the effect of heating the oven body is achieved; fractional heating is conducted on the oven body through the two electric heating wires, the heating instantaneous power is reduced, electrical equipment is protected, the effect of circulating heat in the oven body is achieved, and the rotating speed of the motor can be adjusted; and thus, the conveying speed of a steel and aluminum composite belt is controlled, the efficiency is improved, and the problems that the heat utilization rate is not high, and heating of the steel and aluminum composite belt is inadequate are effectively solved.

The invention provides a sound elimination pad with an air purifying function on a car roof. The sound elimination pad comprises a regenerated fiber layer which is hot-pressed into a half-frame shape. An opening of the half-frame-shaped regenerated fiber layer is arranged downwards. A PEF layer is bonded to the upper end face of the regenerated fiber layer through polyene adhesives. A half-frame-shaped pure cotton layer is arranged on the inner surface of the half-frame-shaped regenerated fiber layer 1. An opening of the half-frame-shaped pure cotton layer is also arranged downwards. A half-frame-shaped purifying layer with a downward opening is arranged on the inner surface of the half-frame-shaped pure cotton layer. According to the sound elimination pad, by the adoption of the half-frame-shaped arrangement, the air purifying effect can be very good, diffusion of fragrance is slow, the service life can be prolonged when the sound elimination pad is used in an effective space, and the cost is lowered; as a result of the arrangement, the structure is simple, the space is saved, the sound insulation effect can be enhanced, the air can be purified, fresh fragrance can be diffused, the car roof is more resistant to a high temperature, and the heat insulation effect is enhanced.

The invention provides a pressure control electromagnetic valve for an automatic transmission. The pressure control electromagnetic valve for the automatic transmission comprises an electromagnetic head, a valve element, a valve sleeve, a spring and a feedback pin. The valve sleeve is provided with an inner cavity, multiple oil supply openings, multiple oil outlets and multiple oil drainage ports.The multiple oil supply openings are evenly arranged on the first circumference of the inner cavity. The multiple oil outlets are evenly arranged on the second circumference of the inner cavity. Themultiple oil drainage ports are evenly arranged on the third circumference of the inner cavity. The valve element, the feedback pin and the spring are sequentially arranged in the inner cavity. Alongwith axial movement of the valve element, the oil supply openings, the oil outlets and the oil drainage ports are made to communicate with one another or not. The electromagnetic head is used for enabling the valve element to axially move and squeeze the feedback pin provided with the spring when electrified. When the electromagnetic head is powered off, the spring enables the feedback pin to drive the valve element to return to the initial position. The pressure control electromagnetic valve for the automatic transmission can improve the response speed of an electromagnetic valve and improvethe low-temperature performance of the whole vehicle.

The present invention discloses a centrifugal fan, which comprises a blade body and a shell. The shell is provided with a containing part, a throat part and a concave part; wherein, the blade body is arranged in the containing part; a first axial line and a second axial line, which are vertical to each other at the central point of the shell, divide the shell into four areas; and the throat part and the concave part are positioned in a first area.

The invention relates to a sock support based on intelligent control. The sock support based on intelligent control comprises a base with an inner cavity, wherein a plurality of guide pipes are installed on the upper surface of the base, are arranged in an annular symmetry mode, and are communicated with the inner cavity of the base, the upper ends of the guide pipes are fixedly connected with an annular pipe which is communicated with the guide pipes, a plurality of supporting pipes are connected to the annular pipe, and are communicated with the annular pipe, a plurality of through holes are formed in the supporting pipes, a plurality of hanging rods are connected to the supporting pipes, a fan is fixedly connected to the base, the upper ends of the supporting pipes are connected with humidity sensors respectively, the side walls of the supporting pipes are connected with proximity switches respectively, the humidity sensors and the proximity switches are connected with a controller, and the controller is electrically connected with the fan. A ventilation structure is adopted for the sock support based on intelligent control; due to the fact that the supporting pipes are arranged, a plurality of pairs of socks can be aired at the same time, the circulation space of air is enlarged through hanging rods on the supporting pipes, moisture in the socks can evaporate more rapidly, and the time for airing is shortened; due to the fact that the proximity switches and the humidity sensors are arranged, the fan can be automatically started and stopped, and use can be more convenient.

The invention discloses a supergravity-fractal impact bed reactor. The supergravity-fractal impact bed reactor mainly comprises a cylindrical outer shell and a rotary cylinder assembled by a pluralityof fractal circular ring pieces; a tray is arranged under the rotating cylinder; and the tray is connected with an external centrifugal machine. The supergravity-fractal impact bed reactor is characterized in that a feeding hole is formed in the center of the rotary cylinder; the cylindrical shell is provided with a fluid outlet pipe; the fractal circular ring pieces are internally provided withfractal channels which are through stage by stage in the radial direction; the fractal stage n of the fractal channels inside the fractal circular ring pieces is smaller than or equal to 15 and largerthan or equal to 3, and the diameters of the fractal channels are in a range from 1 micron to 0.5 meter; the diameter of the fractal channel of n-1 stage is 1.2-2 times of the diameter of the fractalchannel of n stage, so that the distribution force of the inner side channels is prevented from being insufficient; and the flow of a fluid in the channels can be adjusted by adjusting the rotating speed of the cylinder. A centrifugal force is adopted as power to drive the reactor, ordered and repeated instant impact mixing and dispersion among fluids in a supergravity field are realized, and disorder mixing among the fluids in filler of a supergravity device is greatly improved.

The invention discloses a movable rapid dust removal device. The device comprises a lower barrel, an upper barrel and a central barrel. A separating barrel is arranged in the lower barrel, and a first air leakage hole is formed in the upper end of the separating barrel. When the upper barrel and the lower barrel are connected as a whole, the separating barrel extends into the upper barrel. A circular ring type partition plate is arranged inside the upper barrel, a first waterproof barrel is arranged on the inner side of the partition plate, a circular ring type water storage area is formed together by the upper barrel, the partition plate and the first waterproof barrel, and a water outlet is formed in the partition plate. A second air leakage hole and a first guide tube are arranged on the lower end of the upper barrel. The central barrel is arranged in the first waterproof barrel, and an exhaust fan is arranged in the central barrel. Airflow circulation is formed in the peripheral space of the dust removal device, and the original rough dust removal mode can be changed, so that not only can water resources be saved, but also the dust removal effect is rapid.

The invention relates to a temperature equalization pot with high thermal conductivity. The pot comprises an inner pot and an outer pot, the inner pot is sleeved with the outer pot, a vacuum cavity isformed between the inner pot and the outer pot and internally provided with a liquid phase change working medium which can be heated to change from a liquid state to a gaseous state, an open end of the inner pot and an open end of the outer pot are sealed and fixedly connected, the vacuum cavity is internally provided with a liquid suction core attached to the outer wall of the inner pot, and a gap is reserved between the liquid suction core and the inner wall of the outer pot. According to the temperature equalization pot, when the liquid phase change working medium changes from the gaseousstate to the liquid state, the liquid phase change working medium can flow down along the liquid suction core from the outer wall of the inner pot but cannot flow down along the inner wall of the outer pot, heat of the liquid phase change working medium is not easily conducted to the exterior of the temperature equalization pot, so that the thermal conductivity of the liquid phase change working medium and food in the pot is higher, and the heat preservation effect is better; meanwhile, since a certain gap is reserved between the liquid suction core and the inner wall of the inner pot, free flowing of the liquid phase change working medium is ensured, and therefore the higher temperature uniformity is achieved.

The invention discloses an electric control box for an industrial robot, which comprises a stable base, a placement device is fixedly connected to the top of the stable base, a box door is arranged on the front top of the placement device, and a box door is arranged in the middle of the top of the box door. A cooling fan, the back of the cooling fan runs through the box door and extends to the inside of the box door, a telescopic connecting rod is arranged in the middle of the top of the right outer wall of the placement device, and a control panel is fixedly connected to the top of the placement device. The invention relates to the field of robotics. The electric control box of the industrial robot effectively increases the cleaning area inside the device, which can reduce the difficulty of cleaning the inside of the device, and the ventilating plate on the main body of the device can be opened and closed automatically, thereby keeping the internal temperature of the device constant, avoiding the Electronic components are damaged by internal high temperature and cause short circuit, which is beneficial to prolong the service life of the device, and thus improves the convenience of internal circuit connection of the device.

The invention relates to a holder, a rolling body and holder assembly and a thrust bearing. The holder (1) is integrally constructed to be annular and is provided with pockets distributed in the circumferential direction, wherein the pockets penetrate through the two axial ends of the holder (1) in the axial direction, grooves (5a and 5b) for flowing of a lubricant are formed in the outer circumference and / or the inner circumference of the holder (1), and the grooves (5a and 5b) penetrate through the two axial ends of the holder (1) in the axial direction. The rolling body and holder assembly comprises the holder (1) and a plurality of rolling bodies (2), wherein the rolling bodies (2) are arranged in the pockets of the holder (1). The thrust bearing comprises the rolling body and holder assembly or at least one thrust gasket (3 and 4), and the thrust gaskets (3 and 4) are arranged on the axial end sides of the rolling body and holder assembly.

The invention discloses gasket polishing equipment for ocean engineering. The gasket polishing equipment comprises a main body, a driving box is fixedly connected to the bottom of an inner cavity of the main body, a control panel is fixedly connected to the left side of the top of the front face of the main body, and a working platform is arranged at the top of the inner cavity of the main body; and polishing devices are arranged at the positions, located on the two sides of the working platform, of the top of the main body, and rotating shafts are arranged on the two sides of the bottoms of the polishing devices. The invention relates to the technical field of ocean engineering. According to the gasket polishing equipment for ocean engineering, the polishing area is increased, control over the gasket polishing equipment is facilitated, the situation that the polishing degree is affected due to the fact that chippings adhere to the surface of a polishing frame is avoided, the chippings which fall off during polishing can fall on the operation platform, and therefore good convenience is achieved during cleaning; and the problem that cleaning cannot be conducted due to the fact that the chips are clamped in gaps is not prone to occurring, it is beneficial for preventing sparks generated during polishing from affecting workers, and chippings generated in the machining process can be well collected.

The invention discloses a stepped electric-to-bag deduster structure, which comprises an air inlet pipe, a box, an ash bucket and an air outlet pipe. A filter bag is arranged in the box. An upper box and an air purification chamber are successively arranged above the box. The upper box comprises a blowing pipe, an access door and a tube nest. The filter bag is hung on the tube nets. The purification chamber is step-shaped. A settling chamber is arranged at the air inlet pipe. An air-flow separator plate is arranged between the settling chamber and a middle box. The top surface of the air-flow separator plate, the top surface of the settling chamber and the tube nest are positioned at the same height. According to the invention, the original electric deduster structure is fully utilized, the reconstruction period is short, engineering cost is low, and economy is good.

The invention relates to a fast-drying type towel rack with intelligent control. The fast-drying type towel rack comprises a rack body formed by bending a square tube. A plurality of ventilation holes are uniformly distributed in the circumferential surface of a lower horizontal tube of the rack body, and the side surface of the lower horizontal tube is connected with a separating plate. The middle of an upper horizontal tube of the rack body is connected with an air outlet hole of a fan, and a touch switch used for starting the fan is arranged on the end surface of a case of the fan. The front side of the end portion of the lower horizontal tube is fixedly connected with a humidity sensor, the humidity sensor is electrically connected with a control box with an indicator light, and the control box is electrically connected with the fan. The fast-drying type towel rack is simple and compact in structure. Due to the fact that the fan, the rack body of a tubular structure and a separating plate are arranged, the circulation space of air is enlarged, the evaporation rate of water on towels is increased, and left bacteria are reduced. Meanwhile, due to the fact that the touch switch with the waterproof and dustproof function is arranged, the safety of the fast-drying type towel rack is improved. Due to the fact that the humidity sensor is arranged for automatically controlling the work of the fan, the waiting time is shortened, and the energy consumption is reduced.

The invention relates to a method for manufacturing a water-cooled locomotive cylinder. The method for manufacturing the water-cooled locomotive cylinder mainly comprises the steps that a cylinder basic early form with water flow channels and wall adherence sections is formed by manufacturing a cylinder base through a die, parts of the wall adherence sections are removed through the machining of water surrounding channels so that the wall adherence sections and the water flow channels can form spaces allowing cooling water to circulate, and lastly a piston wall pipe is correspondingly combined in the cylinder base. Therefore, the manufacturing of the cylinder is completed through the process, the simplification of the manufacturing process, the reduction of manufacturing cost and the reduction of manufacturing time are achieved, and meanwhile a good heat transmission effect is achieved.

The invention relates to a towel rack based on humidity detection. The towel rack comprises supporting rods fixedly connected with a wall, a transverse pipe is connected between the supporting rods, one end of the transverse pipe is connected with a draught fan through a vent pipe, the outer side wall of the transverse pipe is connected with axial partition plates, the axial partition plates are provided with inner cavities communicated with the transverse pipe, a plurality of through holes communicated with the inner cavities are formed in the axial partition plates, the outer end faces of the axial partition plates are provided with grooves distributed at intervals, a humidity sensor is connected to the side face of the axial partition plate on the upper side of the transverse pipe, and the humidity sensor is electrically connected with the draught fan through a control unit. The towel rack based on humidity detection is simple in structure; due to the facts that the vent structure is adopted and the axial partition plates provided with the grooves are arranged, the air circulation space is enlarged, the evaporation rate of water in a towel is improved, residual bacteria are reduced, the humidity sensor automatically detects the humidity and controls the draught fan to be closed, manual operation is not needed, using convenience is improved, and power consumption of the draught fan is reduced.

The invention relates to the field of hygiene products, and discloses a paper diaper that can keep the skin clean and healthy, including a wearing part and an absorbing part arranged in the middle of the wearing part. The diversion layer, the absorbent core layer and the anti-seepage layer, the middle of the absorbent part is located on one side of the liquid-permeable layer, and two supporting protrusions are arranged along the length direction of the absorbent part, and an accommodation cavity is formed between the two supporting protrusions; The wearing part is made of water-repellent non-woven fabric, leg openings are respectively provided on both sides of the wearing part corresponding to the supporting protrusions, and corresponding magic stickers are respectively provided on both sides of the wearing part located at the leg openings. In the present invention, two supporting protrusions are arranged in the middle of the absorbent part of the diaper, and a storage cavity for storing solid excrement is formed between the supporting protrusions, which reduces the contact area between solid excrement and the skin, and at the same time increases the circulation of air. space to keep the skin clean and healthy.

The present invention discloses a centrifugal fan, which comprises a blade body and a shell. The shell is provided with a containing part, a throat part and a concave part; wherein, the blade body is arranged in the containing part; a first axial line and a second axial line, which are vertical to each other at the central point of the shell, divide the shell into four areas; and the throat part and the concave part are positioned in a first area.

The invention discloses a multi-angle radiation fin group forming method and a radiator. The multi-angle radiation fin group forming method comprises steps that radiation fin blanks provided with inclined buckle parts are stretched to be inclined to acquire the arc-shaped radiation fin blanks; the radiation fin blanks are bent to acquire the radiation fins provided with buckled folded edges; the radiation fins provided with the buckled folded edges are buckled together to acquire the multi-angle radiation fin group. The multi-angle radiation fin group comprises a plurality of radiation fins, which are in a multi-angle connection by adopting buckling riveting blocks. Each of the radiation fins is provided with at least one heat pipe through hole. The radiator produced by adopting the multi-angle radiation fin group forming method is advantageous in that a certain included angle is arranged between each two radiation fin main bodies, and the included angle is also arranged between each two air outlets, and therefore the internal space of the radiator is increased, thermal convection effect is enhanced, heat conduction performance is improved by arranging the folded edges and the heat pipe through holes, and radiation efficiency is improved.

The invention relates to the technical field of atomization devices, in particular to an atomization device suitable for spraying at any angle, comprising a water tank, a pressing plate, a pressing rod, a water injection pipe and a water outlet pipe, the pressing plate is slidably connected in the water tank, the bottom end of the pressing rod is fixedly connected to the top of the pressing plate, one end of the water injection pipe extends into the water tank, and the other end of the water injection pipe extends into the water tank; the other end of the water injection pipe is in threaded connection with a pipe cap, an air inlet one-way valve is installed in the pipe cap, one end of the water outlet pipe extends into the water tank, an air outlet one-way valve is installed in the water outlet pipe, the pipeline is arranged above the water tank, the top end of the pressing rod extends into the pipeline, and the other end of the water outlet pipe extends into the pipeline and is connected with an atomization spray head; fog water can be thrown farther under the action of rotating force when flowing out of the fog outlet holes, so that the circulation space of the fog water in a plant is further increased, and the plant can be dedusted more widely.

The present invention relates to the field of hygienic products and discloses a paper diaper capable of keeping skin clean and healthy. The paper diaper comprises a wearing part and an absorption partarranged in a middle part of the wearing part, the absorption part comprises a liquid permeable layer, a diversion layer, an absorption core layer and an anti-seepage layer which are arranged from inside to outside in sequence, two supporting bulges arranged in a length direction of the absorption part are arranged on one side of the liquid permeable layer in a middle part of the absorption partand an accommodating cavity is formed between the two supporting bulges; the wearing part is made of non-woven fabric subjected to water repellent finishing, leg openings are formed in two sides, corresponding to the supporting protrusions, of the wearing part respectively, and two sides of the wearing part located at the leg openings are respectively provided with corresponding hook-and-loop fasteners respectively. The two supporting protrusions are arranged in the middle part of the absorption part of the paper diaper, a containing cavity capable of storing solid excreta is formed between the supporting protrusions, a contact area of the solid excreta and the skin is reduced, meanwhile, an air circulation space is increased, and the skin can be kept clean and healthy.

The present invention provides a towel hanging and drying machine. The towel hanging and drying machine comprises a hot air device configured to downwardly blow hot air with temperature higher than that of ambient air; and a hanging rod installed to be operated to pivot relative to the hot air device. The hot air device is also configured to be started when the hanging rod is pivoted to a first preset pivoted position and downwardly blow the hot air, and to be shut down when the hanging rod is pivoted to other positions away from the first pivoted position and stop downwardly blowing the hot air. The power on and off of the towel hanging and drying machine is controlled by utilization of pivoted motion of the hanging rod, the fact that a towel is dried can be visually perceived by users, and the towel hanging and drying machine is novel in structure and has good user experience.