50results about How to "Reduce sealing links" patented technology

The invention discloses refrigeration equipment. A liner of a case of the refrigeration equipment comprises an evaporator chamber, a plurality of refrigeration chambers and an air distribution plate, wherein an inner cavity of the air distribution plate is provided with an air passage and a fan, an air inlet of the air passage faces to the evaporator chamber, the fan is arranged at the air inlet of the air passage to absorb cool air inside the evaporator chamber into the air passage, and the air passage is provided with a plurality of air passage branches which are respectively led to each refrigeration chamber. The invention also discloses an air distribution plate comprising a front cover plate, a rear cover plate and a foam part, wherein the rear cover plate is buckled together with the front cover plate, and the foam part is clamped between the front cover plate and the rear cover plate and partially recessed to form the air passage which comprises the air inlet and the air passage branches. The air distribution plate of the refrigeration equipment simplifies the structure of the air passage, and the cool air led to each refrigeration chamber is uniformly distributed by the air distribution plate, therefore, the air inside each air passage branch can be accurately controlled.

The invention relates to an integrated lift translation protective sealing door. Wherein, its hinge leaf is fixed with upper axle base and lower axle base; said two bases are connected to the prolonged hinge leaf axle via bearings; the upper and lower hinge leaf plates are connected to the upper and lower connecting base plates via the upper and lower torque balance translation support bases; one end of upper and lower torque balance translation support bases is connected to the upper and lower connecting base plate pin axles, while the another end sheathes the prolonged hinge leaf axle; there are spaces between the balance translation support bases and the hinge leaf axle base, and between the pin axle holes and the connecting base plate pin axles; the jack lifter is arranged between the upper hinge leaf and the lower hinge leaf, while its square head of lift end is supported inside the supporting translation base; there is space between the square head and the wall of supporting groove; the inner wall of supporting groove has concave rolling channel embedded with rolling balls. The invention can be widely used in protective projects.

The invention discloses a modularization spool structure of a large-flow balance-type pressure regulating value. The pressure regulating valve comprises a valve body (01), a valve deck (02), a spool component, an input channel (106) and an output channel (107) and is characterized in that the spool structure is of a modularization structure, namely, the spool component comprises a spool (03), wherein the spool (03) is installed on a valve base (18), and the valve base (18) is installed on the valve body (01) through a sealing nut (04). The technical scheme is adopted, the pressure regulating valve is suitable for different input pressures, and meanwhile, a core shaft of the valve has a design of the balance-type pressure regulating valve, and fluctuation of different inlet pressures is made to almost have no influence to regulation and stabilization of outlet pressure.

The invention relates to a transverse oil-pressure shock absorber system for a high-speed motor car and aims at providing a shock absorber with stable working performance and good sealing performance. The transverse oil-pressure shock absorber system comprises a shock absorber body which is arranged horizontally. The two ends of the shock absorber body are provided with joints. An oil storage cylinder and a working cylinder are sequentially arranged in the shock absorber body from exterior to interior. The left end of the oil storage cylinder and the left end of the working cylinder are provided with guide sealing devices. A piston rod assembly is arranged in the axial direction of the guide sealing device in a sealed mode. The right end of the oil storage cylinder is connected with an oil storage cylinder base in a sealed mode. The outer side of the working cylinder is connected with a gasbag in a sleeved mode. The two ends of the gasbag are fixed to the working cylinder through cable ties. The right end of the working cylinder is provided with a bottom valve assembly. The upper portion of the right end of the bottom valve assembly is provided with a protruding part protruding in the axial direction of the right end of the bottom valve assembly. The lower end of the bottom valve assembly is provided with an oil supply passage. A notch is formed between the lower portion of the right end of the bottom valve assembly and the oil storage cylinder base. The oil supply passage communicates with the notch, so that oil in the working cylinder and oil in the oil storage cylinder circulates.

This invention relates to a spring hydraulic operating unit used in a high voltage breaker including an oil tank, disk reed set, a working cylinder, an energy stored piston and a cylinder, in which, the working cylinder is set in the hole of the cylinder to be spaced by a circular truncated cone end face with the diameter of phia, an oil tank is fixed above the cylinder, the energy-stored piston is installed between the working cylinder and the cylinder to form a bush-like energy stored mode of the piston and the working cylinder, a press board is set under the energy stored piston on the working cylinder, the phim end face of the board is contacted with the end surface of the piston, the phin face is contacted with the disk reed set, a round plate is set outside of the phin cylinder of the press board, a plate is jacketed on the other end of the working cylinder, the disk reed set is sleeved between the press board and the plate and all sides of the cylinder is set with a reversing valve, an oil pump, a safety pressure releasing valve and a travel switch.

The invention discloses a mass-flow balanced type pressure regulating valve which comprises a valve body (01), a valve cover (02), a valve plug (03), an input channel (106), an output channel (107) and a pressure reducing structure. The pressure reducing structure is a single-stage pressure reducing structure, a piston (10) is arranged in the single-stage pressure reducing structure, one end of the piston (10) is contacted with the valve plug (3) through a compression bar (05), and the other end of the piston (10) is contacted with a regulating spring (19). According to the technical scheme, the single-stage pressure reducing is achieved, a piston type structure is adopted by a pressure reducing cavity, the piston assembly of the mass-flow balanced type pressure regulating valve is different from a traditional diaphragm type structure, and therefore the risk of damaging of a diaphragm caused by mass flow and large pressure fluctuation is reduced.

The invention relates to a high-integration oxygen generator adsorption tower upper cover air inlet and nitrogen discharge system. The system is characterized by comprising the following elements which are sequentially arranged in the transverse direction in installation states: an air-inlet-end air inlet and nitrogen discharge integrated bin cover, nitrogen discharge silencing cotton, an adsorption tower upper cover, a pneumatic valve core of which the two ends are sleeved with an air-inlet-end pneumatic valve plate seal ring and a valve-end pneumatic valve plate seal ring, a valve-end air inlet and nitrogen discharge integrated bin cover and an electromagnetic valve; and a plurality of fastening screws are arranged on only one outer side surface. According to the invention, a pneumatic valve, a double-tower upper cover and a nitrogen discharge system can be fused and locked in a single direction in one step to form a whole, the assembling operation is extremely simple, and the production efficiency is improved; the connection of elements and pipelines between the adsorption tower upper cover and the nitrogen discharge part is reduced, thus reducing pressure loss and being beneficial to the miniaturization and high efficiency of an oxygen generator; and the membrane and the seal ring are combined into a whole, so that the assembling operation is simplified, and the inner connection parts are reduced, thereby reducing the sealing of the components. Thus, the invention can be widely used for the integrated manufacturing of the adsorption tower upper cover and the nitrogen discharge part of the oxygen generator.

The invention provides a transmission device for a high-voltage circuit breaker. The transmission device for the high-voltage circuit breaker is easy to assemble, reliable in performance, low in cost and capable of meeting the transmission demand of the double-break circuit breaker. The transmission device comprises a shell, power input holes formed in the upper end and the lower end of the shell respectively, power output holes formed in the side wall of the shell, and transmission units arranged in the shell. One power input hole is internally provided with a first pull rod which is in vertical sliding connection and is used for inputting power, the power output holes are internally provided with second pull rods which are in horizontal sliding connection and are used for outputting power respectively. The transmission units and the second pull rods are arranged in one-to-one correspondence, the transmission units are used for transforming the vertical movement of the first pull rod into the horizontal movement of the second pull rods. The transmission units comprise first connecting plates in hinge joint with the first pull rod, connecting levers with inflection points in hinge joint with the shell, and second connecting plates in hinge joint with the corresponding second pull rods. The two free ends of each connecting lever are in hinged joint with the free end of the corresponding first connecting plate and the free end of the corresponding second connecting plate respectively.

The invention discloses a integral manual multi-path reversal valve applied in loader, which includes integral valve, six apertures are drilled in the valve, three of them are connected with oil inputting channel and the return channel, the valve has a inlet and a return outlet connected to the channels, the aperture is assembled with a moving arm valve pole, rotary valve pole, safe valve, overload valve, outlay common single-way valve and hydraulic control lock device, the moving arm valve pole and the rotary valve pole are the solid valve pole, the hydraulic control lock has pilot and double-direction starting functions, it is sealed in the oil path with the circle line. The valve hydraulic oil has no leakage, the inner leakage is small, it can prevent the moving arm form falling, avoids the lock and oversize manipulating force, it is safe and flexible.

The invention relates to a right-angle reverse which comprises a box, an input and an output shaft. The input shaft and the output shaft are arranged on the box and are perpendicular, and the axis of the input shaft and the axis of the output shaft intersect. The fixed end of the output shaft stretches into the box, and the output shaft is fixed to two opposite side walls of the box through bearings. The shaft segment between the two bearings is sleeved with an output gear. A bevel gear is coaxially arranged at the fixed end of the input shaft, and is coaxial to the input shaft, the top end face of the bevel gear exactly faces the output shaft, and the bevel gear is in engagement connection with the output gear. By means of the structure, the spiral bevel gear can operate forwards and reversely, high-speed or low-speed transmission is stable, noise is low, vibration is small, and bearing capacity is large; a meshing gear is changed, and the two transmission modes of deceleration and acceleration can be achieved; a multi-directional integral shaft input and output design structure is adopted, so that transmission efficiency is high, noise is low, and vibration is small; especially, the size is small, the structure is compact, only the small regular box is needed so that multi-directional mounting and use of the whole right-angle reverser can be achieved, and the direction can be changed freely.

The invention relates to a combined type hydraulic cylinder design structure capable of supplying positive and negative bending roller force, comprising end cylinder bodies 1, pistons 2, a middle cylinder body 3, a dustproof ring 4, connecting rods 5, flange covers 8, a guide strap 9 and seal elements 11, wherein the end cylinder bodies are symmetrically installed at both ends of the middle cylinder body and provided with respective oil passages; the pistons are arranged in all cylinder barrels; the seal elements are configured on the pistons, and one end surface of each piston 2 is provided with a counter bore 7; all the pistons are fixed by the flange covers, and different annular concave grooves are arranged at the inner diameter of the flange covers and used for being respectively provided with the dustproof ring and the guide strap; the connecting rods are inserted into the counter bores of the two pistons which are adjacently, symmetrically and reversely installed; a space limited by the connecting rods can contain a lug boss of an upper roller bearing support 6 or a lower roller bearing support 10 so that the two pistons which are adjacently, symmetrically and reversely installed can supply positive and negative bending roller force; and the same pistons are installed in the cylinder barrel of the middle cylinder body back to back and share an oil passage of the middle cylinder body. The invention has simple structure and few seal steps and auxiliary pipelines and reduces the control degree.