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 discloses an open-close deep-sea plug-and-pull photoelectric composite connector, which comprises a plug and a socket used for plug-and-match. The main body of the socket part is a socket opening and closing core, which is fixed on a rotating bracket through a hinge connection mode. When the plug and the socket are inserted, the socket opening and closing core can be opened under thepush of an umbrella-shaped curved surface of a plunger, the position of the largest opening angle is parallel to the central axis, and is connected with the photoelectric core inside the plug. The plug and the socket of the invention are respectively provided with a variable-volume bellows and a rubber bag as a pressure balancing device; The O-shaped sealing ring arranged in pairs is used for realizing the sealing in the inoperative state; The invention integrates optical signal and electric power transmission, fully considers internal and external pressure balance, has simple structure and simple insertion process, and can ensure reliable connection of deep water environment.

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 an environment-friendly water saving working method of washing machine and a washing machine thereof. The environment-friendly water saving washing machine includes an inner bucket and an outer bucket; the inner bucket is concentrically installed in the outer bucket, and the inner bucket is an integral water storage bucket; the bottom part of the inner bucket is connected with an inner bucket flange, and the inner bucket flange is installed on an upper shaft sleeve of a reducing gear clutch; a second often close unidirectional valve is arranged on the inner bucket flange, and the bottom part of the outer bucket is provided with an electromagnet for controlling the opening of the second often close unidirectional valve; the electromagnet is arranged at the position corresponding to the second often close unidirectional valve, and an elastic push rod is arranged on the electromagnet, and the push rod is just faced to a valve core of the second often close unidirectional valve. The washing machine disclosed in the invention can save water by over 20% and also effectively prevent secondary pollution of clothes; besides, the washing machine is simple in structure, less in sealing links and good in reliability.

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 discloses a rotary pluggable photoelectric combined connector used in deep sea. The connector includes a plug and a socket which are matched with each other, and the plug includes a plugshell body, a plug elastic capsule body, a plug web, a plug tail plate and a plurality of plug photoelectric insertion cores; the socket comprises a socket shell body, a socket elastic capsule body,a socket web, a socket tail plate, a plurality of socket photoelectric insertion cores and a movable cavity; the connector is also provided with rotary mechanisms capable of covering / uncovering channels cooperating with the socket photoelectric insertion cores and the plug photoelectric insertion cores, and a locking mechanism is arranged between the front end of the plug and the front end of thesocket. The rotary pluggable photoelectric combined connector can adapt to working environments different in depth, and is reliable in sealing, simple to operate and small in required strength for plugging and pulling.

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 present invention discloses a dynamic and static submarine optical cable connector box. The dynamic and static submarine optical cable connector box comprises a cylinder, a steel wire metal clad pressing device, and benders; the benders respectively sleeve on the sides of the ends of a dynamic submarine optical cable and a static submarine optical cable; the dynamic submarine optical cable islocked on the cylinder by means of glue filling; the static submarine optical cable is correspondingly arranged on the cylinder through the steel wire metal clad pressing device; a Haval-type structure is used for the cylinder; the cylinder is further correspondingly provided with an optical fiber box; and the cores of the dynamic submarine optical cable and the static submarine optical cable passthrough the cylinder and the optical fiber box, and are fused in the optical fiber box. According to the dynamic and static submarine optical cable connector box provided by the present invention, the cost is reduced; the rapid integration capability of the product is realized; by using the optical fiber box sealing method, the product structure size is reduced and the construction is facilitated; glue filling is used to tightly locking the dynamic submarine optical cable steel wire, metal clad pressing is used to tightly locking the static submarine optical cable steel wire, and mechanical structure design is used to prevent the torsion of the static cable from damaging the dynamic balance of the dynamic cable.

The invention discloses an actuating cylinder with a mechanical lock arranged inside and locking and unlocking methods of the actuating cylinder with the mechanical lock arranged inside. The actuating cylinder with the mechanical lock arranged inside comprises an outer barrel with an inner cavity and a piston rod partially mounted in the outer barrel. The actuating cylinder is structurally characterized in that a moving piston capable of doing reciprocating motion at the end of the piston rod and an elastic lock claw located in a rod cavity are mounted on the piston rod, and a fusiform valve for achieving the differential action of the actuating cylinder is mounted on the outer barrel; and the moving piston is pressed at the end of the piston rod through an elastic element, and a lower position locking groove formed in the outer wall face of the piston rod is arranged between the elastic lock claw and the moving piston and used for cooperating with the elastic lock claw to enable the actuating cylinder to be in a locked state. The elastic lock claw type mechanical lock is arranged at the stretching end of the piston rod of the actuating cylinder and used for locking the piston rod at the full-stretching position. The fusiform valve is mounted on the outer barrel of the actuating cylinder and used for achieving the differential action of the actuating cylinder.

A detachable multi-layered tide seedbed structure with LED light sources and an irrigation system are provided. The seedbed structure comprises a detachable multi-layered tide seedbed and an irrigation system cooperated with the detachable multi-layered tide seedbed. The detachable multi-layered tide seedbed comprises a seedbed framework structure, seedbed tray structures and LED lamp set plates, wherein the seedbed framework structure is orderly connected with a bottom layer, a middle part and a top layer in a detachable way from bottom to top; each seedbed tray structure is placed on the seedbed framework structure; and the irrigation system has a liquid inlet pipe and a liquid return pipeline. The detachable multi-layered tide seedbed structure with LED light sources has a rational and compact structure; multi-layered and multi-rowed seedbed structures can be constructed according to space requirements of a plant factory; the detachable multi-layered tide seedbed structure can be repeatedly used and is simplified in light of design; with rational arrangement of the irrigation system, cluster-type seedbed irrigation can be achieved and individual seedbed irrigation can be realized; spatial layout of the irrigation system is optimized; expansion can be conducted according to the seedbed construction and laying-out forms; and the detachable multi-layered tide seedbed structure with LED light sources and the irrigation system are suitable for small-scale seedling nursing tests and large-scale seedling nursing bases.

The invention discloses a control mechanism for a seal water valve and the seal water valve. The control mechanism for the seal water valve comprises a stator blade mechanism fixedly sealed and covered on a water inlet or a water outlet of a valve inner cavity of the seal water valve and used for forming a fixed circulation channel, a rotor plate mechanism used for forming a movable circulation channel and fit to and rotatably matched with the stator blade mechanism so as to control a water flow amount, and a fastening piece used for sealing an assembly port of a sealed and covered valve bodyand compressing and fitting the rotor plate mechanism onto the stator blade mechanism along an axial direction so as to form axial fastening and positioning. Compression-fit seal between the fasteningpiece and the rotor plate mechanism and compression-fit seal between the rotor plate mechanism and the stator blade mechanism form a double-layer dynamic seal structure. The whole structure is simple, seal links are less, all dynamic seal contacting a water flow adopts binding faces with mirror surface brightness levels for compression-fit seal, and the leakage problem brought by the wear duringa rotation process can be effectively avoided, so that the service life of the whole seal water valve is prolonged.

The invention discloses a coupling for a pumping unit. The coupling comprises two coupling halves. The two coupling halves are respectively connected onto two rotary shafts, a connecting sleeve with internal teeth is arranged at the tail end of one of the coupling halves, external teeth which are matched with the internal teeth of the connecting sleeve are arranged on the outer circumference of the tail end of the other coupling half, and the external teeth are sealed in the connecting sleeve by a sealing sleeve positioned at the rear of the external teeth after the connecting sleeve sleeves the external teeth. The coupling with the structure has the advantages that the coupling half with the external teeth only needs to be nested in the other coupling half when connected with the other coupling half, accordingly, the coupling is quite simple in structure, is low in manufacturing cost and is quite convenient to disassemble, assemble and maintain, and has few components; sealing links are few, the sealing performance can be improved, and leakage of lubricating oil can be prevented; flanges which are traditionally used in connecting procedures are omitted, so that the two rotary shafts can slide relatively, and the coupling can bear certain axial and radial offset when used on equipment such as the pumping unit.

The invention belongs to the technical field of engine testing, and in particular relates to an engine body test load applying device. The device includes cylinder head, cylinder gasket, non-standard piston, connecting rod, crankshaft or non-standard straight shaft and O-ring, and also includes pressure amplifier and high-pressure cavity, which is connected with the cylinder head by uniformly distributed bolts. The top of the standard piston is provided with an internal thread suitable for the pressure amplifier. The pressure amplifier is screwed on the non-standard piston through the thread. A test pressure chamber is formed between the top of the pressure amplifier and the high-pressure chamber. The pressure amplifier uses an O-ring and a high-pressure chamber radial seal. The invention improves the reliability of the sealing link in the high-explosive-pressure engine body test, reduces the test equipment load, and ensures the smooth progress of the high-explosive-pressure engine body reliability test. The test efficiency is improved, and the loading capacity of the test system is also improved.

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 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.

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 discloses a double-adjusting-gap brake caliper with a parking mechanism. The brake caliper comprises a caliper body; a piston movable cavity is formed in the caliper body; a piston is arranged in the piston movable cavity; an automatic gap adjustment mechanism is arranged in a storage groove of the piston; the part, located at the right end of the piston movable cavity, of the caliper body is provided with a first caliper cavity; a circlip for a hole, a first sealing ring, a screw, a push rod and an eccentric shaft are sequentially arranged in the first caliper cavity from the left to the right; a caliper body hole is formed in the part, located at the upper right portion of the caliper body cavity, of the caliper body; an adjustment shaft, a washer and a screw plug are sequentially arranged in the caliper body hole from left to right; the automatic gap adjustment mechanism comprises a torsion spring, a screw sleeve, a limiting sleeve, a split washer, a limiting retainerring, a limiting gear ring, a rotating pin and a spring piece; and under the action of spring force of the torsion spring, the rotating pin is enabled to approach an oblique groove in the limiting sleeve, so that the gap is automatically adjusted. The brake caliper is reasonable in structure arrangement, compact in structure, small in size and mechanical in gap adjustment, sealing links are reduced, the reliability is improved, and the practicality is good.

The invention relates to the technical field of washing machines, and in particular relates to a washing machine environment-friendly water-saving working method and a washing machine thereof; by adoption of the technical scheme provided by the invention, the defects that an existing washing machine wastes water and has secondary pollution are overcome; the environment-friendly water-saving washing machine provided by the invention comprises an inner barrel and an outer barrel, wherein the inner barrel is concentrically arranged in the outer barrel, and is characterized in that the inner barrel is an integral water storage barrel, the bottom of the inner barrel is connected with an inner barrel flange, the inner barrel flange is mounted on an upper shaft sleeve of a speed reduction clutch, the inner barrel flange is provided with a normally-closed check valve, the lower part of the normally-closed check valve is provided with an annular push plate for controlling the normally-closed check valve to move up and down, the annular push plate is arranged at the bottom of the inner barrel flange through a guide post in a manner of moving up and down, and is controlled to move up and down by an electromagnet arranged on the bottom of the outer barrel; the outer barrel contains no water, water is saved by 20 percent or above, and the secondary pollution to clothes is avoided; sealing links are less, the implementation is easy and the reliability is good.

The invention relates to a right-angle ball valve with a pressure relief function. The right-angle ball valve comprises a valve body with a valve cavity, a fluid inlet and a fluid outlet are formed inthe different directions of the valve cavity, and the valve cavity is internally provided with a valve element driven by a handle to rotate; the valve element is provided with a valve element flowingchannel, wherein the valve element flowing channel can communicate the fluid inlet with the fluid outlet at the specific rotation angle, and the fluid inlet can be opened or closed through rotation of the valve element; the valve body is further connected with a pressure relief valve; and a pressure relief flowing channel communicating the fluid outlet with an inlet of the pressure relief valve is formed in a base body of the valve body. When the ball valve is closed and opened, the pressure relief capacity can be achieved, the structure is compact, the size is small, and using reliability ishigh.

The invention discloses a thread sealing coupling which comprises a left-half coupling body, a right-half coupling body and an inner gear sleeve. One end of the inner gear sleeve is open, and the other end of the inner gear sleeve is provided with a placement hole. Two stages of stepped holes are formed in an inner cavity of the inner gear sleeve, and a limiting step is arranged at the tail end ofthe right-half coupling body. A key groove is formed in the front portion of the limiting step, and an outer gear sleeve is mounted on the right-half coupling body. The right-half coupling body penetrates the placement hole, and the outer gear sleeve is located in the inner cavity of the inner gear sleeve. An annular mounting end is arranged at the tail end of the left-half coupling body, and aninternal thread and an external thread are arranged on the inner side and the outer side of the annular mounting end. A threaded hole is formed in the opening end of the inner gear sleeve, and the left-half coupling body is mounted at the opening end of the inner gear sleeve. After the structure is adopted, sealing links are few, the sealing property is improved, the joint end and the inner cavityare staggered to further ensure the sealing property, and the threaded connection structure further ensures the sealing property and use for a long time of the thread sealing coupling; and structuraldesign is simple, dismounting and mounting are convenient and rapid, overhauling is convenient, the manufacturing cost is reduced, and the service life is prolonged.

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 relates to an integral plug-in type hand-operated direction valve. A control mechanism (1) and the upper end of a valve body component (2) are hinged with a hinged support (7) through a pin shaft (6); the hinged support (7) is connected with the upper end of the valve body component (2) through a bolt; a press block (4) is arranged at the lower end of the valve body component (2); the control mechanism (1) and the lower end of the valve body component (2) are in compressed connection through an eyelet bolt (5); valve core components (3) are arranged in the valve body component (2) which is in threaded connection with the valve core components (3) through an inner cavity of the valve body component (2); each control unit (8) comprises one control mechanism (1) and a pair of valve core components (3); and an outlet of the valve body component (2) is directly communicated with outlets of the valve core components (3). The integral plug-in type hand-operated direction valve has the characteristics of safety, speediness and reliability, capacities of providing a high-pressure and high-flow operating fluid and continuously working on site, low fault rate, convenience in assembly and maintenance and the like.

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.

The invention relates to an assembly of an electrode frame and a diaphragm of a flow battery, in particular to application of the assembly in the field of flow batteries. Comprising an annular electrode frame with a through hole in the middle, an annular boss or an annular groove is formed in the inner wall face of the middle of the through hole of the electrode frame, a diaphragm is placed in the through hole in the middle of the electrode frame, and the peripheral edge of the diaphragm abuts against the annular platform or is placed in the annular groove in the electrode frame. The technology that the positive electrode and the negative electrode are the same electrode frame is realized in the flow battery; in the assembly process of the flow battery, the use of a sealing material is reduced, the assembly process of the flow battery is optimized, and the cost of the flow battery is reduced; the use of a sealing gasket is reduced, the thickness of the battery is reduced, the volume of the battery is reduced, and the volumetric specific energy is improved; the sealing link in the assembly process of the flow battery is reduced, and the reliability of the electric pile is greatly improved.

The invention discloses a thermal expansion type ultrahigh-pressure energy conservation device for implementing high-pressure jet by using volume expansion or shrinkage of a liquid medium. The device comprises a No.1 cold-heat exchange water tank and a No.2 cold-heat exchange water tank, and a No.1 cold-heat exchange pipeline and a No.2 cold-heat exchange pipeline are respectively arranged in the two cold-heat exchange water tanks; a water supply switching valve and a water spray switching valve are arranged between the No.1 cold-heat exchange pipeline and the No.2 cold-heat exchange pipeline, and the two switching valves are arranged in opposite directions to realize alternated water spray and alternated water supply; and a refrigerating and heating switching device is arranged between the two cold-heat exchange water tanks. The device is simple in structure; the high-pressure jet is implemented by using the volume expansion or shrinkage of the liquid medium, so that the energy loss in the conversion process is low, the required energy can be furthest obtained, the liquid medium can be reused, the energy is saved, and pollution to the environment is avoided; and the sealing links are few, the sealing requirement is low, and the sealing effect is good.