足球比分007

Manufacturing and application technology of non-variable capacity pump equipment
  • The utility model relates to a miniature air cylinder, in particular to a bicycle miniature air cylinder. Due to the large volume and weight of the existing air pumps, it is very inconvenient to carry them out, especially in remote rural mountainous areas. Once a tire leaks, you cannot expect to reach or return to your destination, and you are distressed. Second, The cost of this kind of product is high, and the psychological burden of the seller is relatively heavy. Therefore, it is impossible to reach millions of households. The purpose of this utility model is to provide a ...
  • The utility model belongs to a non-variable capacity centrifugal pump, which is a double-suction centrifugal water pump particularly suitable for agricultural irrigation. Existing agricultural water pumps such as axial flow pumps, submersible pumps and ordinary centrifugal pumps use the interaction of blades and water to pump irrigation water. The centrifugal pumps have the advantages of simple structure, stable performance, high efficiency and large flow rate. In actual applications, corresponding power and transmission devices need to be configured, which is not easy to move, and has certain operating difficulties, which are prone to leaking pumps, leaves ...
  • The utility model relates to the control and regulation of a non-variable capacity pumping device, in particular to a multifunctional electric fan speed regulator. At present, most of the inductive stepped fan speed regulators sold and used in the market are replaced by electronic speed regulators due to the disadvantages of high power consumption, narrow speed range, and monotonous functions. CN2035407U and CN2066524U respectively disclosed the names of "electric fan analog natural wind multifunctional speed governor", "full speed range ...
  • The utility model belongs to a liquid pump in mechanical engineering. CN2043676U discloses a bellows water pump (application number 89200772.9), which utilizes the change in the volume of the bellows to form a pressure difference between the inside and outside of the pump to achieve the purpose of water discharge (as shown in Figure 1 of the description of the drawings). The pump body 18 and the water inlet valve 19 The inner wall of the water inlet valve 20 and the bellows 21 forms a compression cavity. The water outlet valve body 23 at the upper end of the water outlet pipe 22 and the corrugated pipe 21 forms a water outlet cavity. When the corrugated ...
  • The utility model belongs to a domestic induced draft fan. At present, various domestic induced draft fans on the market are composed of a motor, an impeller, and a housing. They are only suitable for AC power, not for DC power, and cannot work without power. The purpose of this utility model is to provide an induced draft fan. The purpose of the utility model is achieved in such a manner that an oil cylinder and a radiating impeller are respectively provided at two ends of a motor shaft, and a transformer is installed in an inner cavity of an induced draft fan casing connected to the motor casing ...
  • The utility model belongs to daily necessities, in particular to a radio miniature fan. The conventional electric fans, whether miniature or domestic, did not have a radio function. The purpose of the utility model is to provide a radio miniature electric fan which has a simple structure, a compact size, a small volume, and is easy to carry. In addition to a low-voltage DC motor with a casing, an electric fan blade, a driving blade, and a blower net installed on the casing, the utility model also has a radio device, a low-voltage DC motor, and an electric fan blade ...
  • The utility model relates to a siphon that can be siphoned only by initial manual control. The utility model is particularly suitable for multi-purpose use of drivers, agriculture, forestry and water conservancy, aquaculture, industry and mining, scientific research, colleges, medical treatment, food, shops, households and various liquids. Siphon pump. Today, the pump body and check valve of various manual control siphon devices only communicate with the inlet and outlet of the pipeline, and are the only way for liquid flow during siphon. For example, the pump body and check valve are installed at the inlet or vault. The highest point of the arc, this divides the pipeline into ...
  • The utility model is applied to a pump, a motor, an internal (external) gas engine, etc., and is an improved invention of a structure. The existing variable volume machines are generally composed of a shaft body, a cylinder body, a piston or a plunger, and the change process of the closed volume is a two-dimensional change, and the overall structure does not depart from the plane structure category. The disadvantage of its structure is that the ratio of the variable volume to the overall volume of the machine is too small, too many component parts, bulky and inflexible; the processing technology is complex; the scope of application is narrow, and it is generally only used as an oil pump ...
  • The utility model relates to a cycloidal lubrication pump which is widely used on electromechanical equipment such as machine tools and automobiles. For the structure of the existing cycloidal lubrication pump, please refer to the attached drawings, Figure 1 and Figure 2 (1) the inner rotor [2], the outer rotor [3], and the eccentric ring [4] fitted on [3]. Installed in the pump body [9]; fixed by the round pin [6] and the groove on the eccentric ring [4], sealed by the pump cover [7] to become a whole. (2) The shaft [14] connected with power, drives ...
  • The utility model is a rod-type centrifugal pump for oil production in an oil field. At present, the mechanical oil extraction method that has been commonly used in oil fields is a pumping unit equipped with a plunger-type deep well pump, followed by an electric submersible pump. The plunger pump for oil extraction is driven by the ground pumping unit to drive the tons of sucker rods for reciprocating motion, which makes the ground equipment huge and heavy, and consumes large power. When the fluid supply capacity of the oil well does not adapt to the load capacity of the pumping unit, it is not easy to change the machine, causing many oil wells to produce in a mismatch between the two, causing waste of equipment or oil ...
  • The utility model relates to a filter device for an exhaust fan, which is suitable for a household exhaust fan, and is particularly suitable for cleaning the kitchen exhaust fan and the range hood. Exhaust fans on the market currently have only a protective cover outside the fan blades. When working, gas is discharged from the holes in the protective cover through the fan blades. The exhausted air, especially from the kitchen being cooked, contains a large amount of oil. The gas of the gas, smoke and dust particles is partially attached to the fan blade, the fan shaft, the motor and the pipeline when passing through the fan blade ...
  • The utility model relates to an automatic water supply and air release valve for a pump, in particular to an automatic water supply and air release valve for a vacuum pump and a centrifugal pump. For the use of vacuum pumps or centrifugal pumps to recover the steam and water used in production and return it to the boiler for reuse, in order to save coal, water, electricity and other energy. However, because the temperature of the return water is too high (generally between 70-80 ° C, and can reach 100 ° C when it is high), sometimes steam is generated in the pump, which causes the pump to stop running. In addition, because the boiler water supply is concentrated ...
  • The utility model belongs to the field of ventilation machinery. In many occasions, such as highway and railway tunnels, subways, large warehouses, ships, large buildings, underground shopping malls, and textile, tobacco, wood processing and other places, not only ventilation is required, but also the direction of ventilation must be continuously changed, and the positive and negative Directional ventilation to improve ventilation efficiency and ensure air freshness, temperature and humidity in the place of use. At present, the following four methods are used to solve the problem of two-way ventilation at home and abroad. (1) Conventional ...
  • The utility model relates to a pump, in particular to a manual reciprocating pump. The usual manual pumps, such as hand-held capsule pumps and portable dispensers, are laborious and labor-intensive, especially when used to add gasoline. Capsule pumps tend to swell and deform and have a short service life. Difficult, severely limited by environment and conditions, and inconvenient to use. The purpose of the utility model is to provide a new type of manual pump, which can be used to remove liquids such as gasoline, diesel, kerosene, water, additives, etc ...
  • The utility model belongs to a domestic induced draft fan. The domestic induced draft fan currently on the market is composed of a motor, a blade, and a housing. It is only suitable for AC power, not for DC power. The purpose of the utility model is to provide an AC / DC household induced draft fan. The purpose of the present invention is achieved in such a way that the motor is connected to the transformer rectifier. The utility model is provided with a transforming rectifier, which can change AC power to DC power. It can only use AC power as the power source.
  • The utility model relates to an AC and DC multifunctional household small electrical appliance combined device. In modern homes, table lamps, fans, radios, clocks, negative ion generators, signal transceivers, etc. have come into life. However, these small appliances only have a single function under the condition of inputting 220V AC power. This is not only cluttered, not easy to manage, but also takes up too much space, and it is not convenient to use. The purpose of the utility model is to ...
  • The utility model relates to an improvement of a centrifugal fan. The existing multi-wing centrifugal fan has many shortcomings. The main one is that the fan's transmission type is C-type pulley drive (that is, the pulley cantilever is installed at one end of the shaft and the impeller cantilever is installed at the other end of the shaft). The motor is mounted on the underside of the casing. This structure is not compact enough and requires a large area. Second, the structure of the air inlet pipe and the guide shaft sleeve is not reasonable enough, and the noise is large. The purpose of the utility model is to provide a compact structure ...
  • The utility model relates to a pump for sucking liquid with an air bag. The driving car stopped due to lack of fuel, and the driver had to refuel from the spare fuel tank. In order to suck the gasoline out of the fuel tank, the driver often inserts a hose into the fuel tank, sucks a mouthful at the other end of the hose with a mouth, sucks up the oil, and then releases it to let the oil flow out of the fuel tank. It is very inconvenient to do this, and two often inhales gasoline into the stomach, which affects health. The purpose of this utility model is to provide a ...
  • The utility model relates to a miniature cycle gas compressor. Miniature cycle gas compressors are key equipment for laboratory research in the field of petrochemicals and one-carbon chemistry, especially catalyst evaluation devices. This kind of equipment has been developed in China, such as the "oil-free lubrication cycle gas compressor" developed by Liaoyuan Chemical Machinery Plant, which is a piston-type cycle gas compressor. Its shortcomings are that the circulation gas flow is fixed and cannot be adjusted. ; 2 is the seal is not good, the running time is slightly longer, the seal ...
  • The utility model relates to a multifunctional peripheral electric fan, which belongs to the structure improvement of an electric fan in household appliances. Electric fans have a very important role in household appliances. With the development of science and technology and the improvement of people's living standards, the variety of electric fans is increasing, and their shapes and functions are becoming more and more perfect. The fan-shaking air-supplying mechanism of the electric fan came into being at the historic moment. Due to the weakness of the structure of the traditional shaking-head air-supplying mechanism itself, the stagnation in the process of air-supplying ...
1 2 3 4 5 6 >> Last
Technical classification