87 results about "O-ring" patented technology

The utility model relates to pressure transmitter technical field, specifically is a detachable sealed structure pressure transmitter, including upper clamping shell, lower clamping shell and hollow connecting rod, the upper clamping shell is clamped and is connected with the top of lower clamping shell, the inner top of lower clamping shell is provided with diaphragm groove, the inside of diaphragm groove is provided with O ring groove and is provided with O ring in O ring groove, the top of lower clamping shell and located diaphragm groove's outside bond have outer sealing ring, diaphragm groove is provided with pressure sensing diaphragm and the top of pressure sensing diaphragm is provided with pressure sensor, the top of pressure sensor is provided with pin, the circuit board is installed through the limiting seat in the upper clamping shell and is provided with the detection contact point corresponding with pin on the circuit board, pressure transmitter greatly improves pressure transmitter overall sealing, and the O ring is convenient to take down, and cutting separates the outer outer sealing ring and realizes replacement.

The utility model discloses a feeding device for sensor assembly. The feeding device comprises a bottom frame, a vertical plate and a movable base. A mounting cylinder is arranged at the top of the bottom frame, an O-shaped ring vibration disc is arranged in the mounting cylinder, a material supplementing frame is arranged on one side of the O-shaped ring vibration disc, and a channel is formed between the material supplementing frame and the O-shaped ring vibration disc; the feeding mechanism is driven to quickly move in the horizontal direction and the vertical direction through cooperative work of a plurality of air cylinders, so that O-shaped rings are quickly grabbed and transferred by the negative pressure suction device, and the feeding time is greatly shortened; o-shaped rings are automatically and orderly arranged through the O-shaped ring vibration disc, the O-shaped rings are supplemented in time in cooperation with the material supplementing frame, and continuous supply of the O-shaped rings is guaranteed; the feeding precision is improved through positioning formed by a positioning seat, a positioning block, a telescopic rod and a spring; the feeding process is monitored in real time through the scanner, problems are found and fed back and adjusted in time, and the operation reliability of the whole feeding device is further improved.

The utility model discloses a solenoid valve driver, including socket combination - shell assembly and the circuit board - shell cover assembly that is connected with socket combination - shell assembly through shell cover screw (31), socket combination - shell assembly includes shell (1) and the socket combination (2) that is connected with shell (1), socket combination (2) includes socket (21), the plug (22) that is connected with socket (21), pin (23), socket screw (24) for fixing socket (21) on shell (1) and set up between socket (21) and shell (1) O ring (25), the circuit board - shell cover assembly includes the shell cover (3) that is connected with socket combination - shell assembly, sets up the circuit board (4) of shell cover (3) near shell one side and sets up cable (5) on the other side of shell cover (3). The utility model provides a solenoid valve driver can reach better sealing stability.

The utility model belongs to the technical field of one-way valves, and relates to a fuel oil one-way valve with reverse zero leakage and physical misloading prevention. Comprising a jacket nut, an inlet shell, an O-shaped ring, a shaft, a spring, a valve plate, a gasket a, a support, a gasket b and an outlet shell. According to the one-way valve, vulcanized rubber is arranged on the valve plate, the protruding face of the vulcanized rubber is designed to be in an arc shape, under the action of spring pressure and working medium pressure, the vulcanized rubber is matched with the ground valve seat sealing face on the inlet shell, and reverse zero leakage is achieved under small working pressure; and the inlet shell connecting pipe nozzle and the outlet shell connecting pipe nozzle are designed to be opposite connecting ports, so that the product is physically prevented from being mistakenly assembled.

The utility model relates to the technical field of fuel gas pressure regulation, in particular to a sealing structure of a regulating valve and the regulating valve, the sealing structure comprises a first sealing groove, the first sealing groove is arranged among a valve seat, a valve cage and a valve barrel, and a triangular ring is arranged in the first sealing groove; the second sealing groove is formed in the valve cage and located at the end, close to the valve seat, of the valve cage, and an O-shaped ring is arranged in the second sealing groove. According to the utility model, the design of a valve port sealing ring is cancelled, the structure is simple, the manufacturing is convenient, and the cost is low. The sealing structure is reliable, high in stability, convenient to assemble and wide in application. Through the combination of the triangular ring and the O-shaped ring, more stable and reliable sealing can be provided under the high-pressure and large-flow working environment. The triangular ring has good pressure resistance and is suitable for being applied to a large-flow and high-pressure regulating valve; the O-shaped ring is high in adaptability, and low pressure and the stability of a sealing face can be guaranteed.

The present application discloses an atomizing body assembly and a soft mist inhalation device with improved sealing performance. The atomizing body assembly includes a T-shaped steel member, a chip-mounting part, a filter cartridge, and a medium-sized O-ring. The chip-mounting part, the medium-sized O ring and the filter cartridge collectively form a sealing structure.

The utility model discloses a highly durable teflon O-shaped seal ring, including seal ring mechanism, seal ring mechanism includes O-shaped ring layer, first elastic layer, second elastic layer, wear-resistant coating, storage cover, oil hole, folding cover and material mouth, first elastic layer is located the lower end of O-shaped ring layer, second elastic layer is located the upper end of O-shaped ring layer, the wear-resistant coating is located the storage cover, oil hole, folding cover and material mouth. The wear-resistant coating is located on the outer wall of the O-shaped ring layer, the storage cover is located at the upper end of the second elastic layer, the folding cover is located on the outer surface of the lower end of the storage cover, and the material opening is located in one side of the outer surface of the upper end of the storage cover. According to the high-durability teflon O-shaped sealing ring, the first elastic layer, the second elastic layer and the wear-resistant coating arranged on the O-shaped ring layer can have proper elasticity so as to adapt to micro deformation of a sealing surface and reduce friction and wear, and the high-durability teflon O-shaped sealing ring has proper elasticity so as to adapt to micro deformation of the sealing surface and reduce friction and wear; and a better use prospect is brought.

The utility model relates to pilot proportional pressure reducing valve technical field discloses a pilot proportional pressure reducing valve of detachable spring seat, including shell, valve core, spring seat, valve core spring, hole steel wire baffle ring, steel ball seat, steel ball and electromagnetic control assembly, the electromagnetic control assembly contains coil framework, enameled wire, armature and gap sleeve, the valve core passes through displacement control P mouth to A mouth's oil circuit opening degree, spring seat adopts clearance fit with valve sleeve, and the cooperation clearance is 0.02 0.05mm, and is fixed by the hole steel wire baffle ring of axial installation limit, the hole steel wire baffle ring is embedded in the annular groove of shell inner wall, and the detachable type constraint spring seat axial displacement is established, be equipped with third O ring between steel ball seat and shell, the outside of P mouth is connected with filter screen, through setting spring seat, valve sleeve and hole steel wire baffle ring, spring seat adopts clearance fit (0.02 0.05mm) plus hole steel wire baffle ring limit with valve sleeve, thoroughly avoid the hole deformation caused by traditional interference pressurization.

A valve element assembly is arranged in a valve body, a valve seat assembly is arranged in the valve body, the valve seat assembly and the valve body are in conical surface fit, the valve seat assembly comprises a valve seat supporting seat, a valve seat damping gasket is arranged on the valve seat supporting seat, a valve seat sealing ring is arranged on the valve seat damping gasket, and a valve seat pressing ring is arranged on the valve seat supporting seat. The valve seat pressing ring is in threaded connection with the valve seat supporting seat, the valve seat sealing ring and the valve seat damping gasket are pressed on the valve seat supporting seat, a first valve seat O-shaped ring and a second valve seat O-shaped ring are arranged on the valve seat supporting seat, a threaded hole is further formed in the valve body, and the threaded hole is communicated between the first valve seat O-shaped ring and the second valve seat O-shaped ring. The space among the valve body, the first valve seat O-shaped ring, the second valve seat O-shaped ring and the valve seat supporting seat is vacuumized through exhaust of the threaded holes, the valve seat assembly is fixed to the valve body, particles and silt can be discharged through the pressure relief and silt discharging holes, the hard sealing face is always located in a medium guide line through the upper guide angle and the lower guide angle, and the hard sealing face is prevented from being directly scoured by media.

The invention discloses a double valve seat structure with independent seal, which comprises a valve seat, a ball and a valve body. The valve seat is composed of a small valve seat and a big valve seat. The outer periphery of the back end of the small valve seat is a stepped shaft, which is matched with the inner cavity of the big valve seat. The one end surface of the stepped shaft is in contact with the loading spring I installed in the inner cavity of the big valve seat. The other end surface of the stepped shaft is sealed with the inner cavity of the big valve seat through O ring I. The front end of the small valve seat is connected with the ball through the first reseal triangle seal ring I. The front end of the big valve seat is connected with the ball through the second reseal triangle seal ring II. The back end of the big valve seat is sealed with the valve body through O ring II, and is in contact with the loading spring II installed on the valve body. The invention is suitable for the working condition of special and difficult sealing medium, such as hydrogen, and has simple structure and strong practicability.

The utility model belongs to the technical field of oil seals, and particularly relates to a combined oil seal which comprises a transmission shaft, a wear-resisting clamping plate is arranged on the outer side of the transmission shaft, a telescopic rod is fixedly connected to one end of the wear-resisting clamping plate, a contact block is fixedly installed at one end of the telescopic rod, and an outer sealing ring is arranged on the outer side of the contact block. An inner rubber sealing ring is arranged on the inner side of the outer sealing ring, an operator can control the pressure of a contact ball and an O-shaped ring on a contact block through matched use of an adjusting handle 17, a first guide column and a first spring, so that the oil seal can meet the sealing requirements under different working conditions, and meanwhile, when the dustproof shell is damaged, the operator can adjust the pressure of the contact ball and the O-shaped ring to the contact block through the adjusting handle. According to the oil seal device, the contact ball can easily slide out of the dustproof shell under the matching action of the first guide column and the first spring, then the dustproof shell can be conveniently and independently replaced, the whole oil seal device does not need to be replaced, the downtime of equipment is effectively shortened, and the practicability of the oil seal and the operation efficiency of the equipment are improved.

The utility model belongs to the technical field of valves, and discloses an unloading type high-pressure manual stop valve which comprises a valve body, the valve body is connected with a valve cover through a connecting piece, a valve seat is arranged in the valve body, a sealing face is arranged on the valve seat, a valve clack matched with the valve seat in a sealing mode is further arranged in the valve body, and a sealing face is arranged on the conical face of the valve clack. The sealing face of the valve seat and the sealing face of the valve clack are connected to form a sealing pair, one end of the valve clack is connected with a valve rod, the other end of the valve rod is fixedly connected with a hand wheel, and a first O-shaped ring and a first check ring are installed on a groove of the valve clack to form radial dynamic sealing with the valve deck. A groove of the valve rod is provided with a first O-shaped ring and a first check ring, and the first O-shaped ring and the first check ring form radial dynamic sealing with the valve body. An unloading type structure is adopted, the valve rod is free from the action of gas pressure in the moving process, manual operation is reduced, and operation is convenient; the valve clack and the valve rod are in spherical connection through the T-shaped groove, and the service life of the soft sealing valve seat is greatly prolonged.

The utility model discloses a spring seal O-ring mounting jig, which is characterized in that a positioning part is arranged on the top wall of a lower die for sleeving a spring seal which needs to be provided with an O-ring and positioning the spring seal, a first annular component is arranged on the bottom wall of an upper die, and the first annular component corresponds to a groove which is formed in the spring seal and is used for mounting the O-ring. During installation, the spring seal needing to be provided with the O ring is arranged on the positioning part in a sleeving mode, then the O ring is placed at the position, corresponding to the groove, of the spring seal, then the upper die and the lower die are subjected to die assembly action manually or through a driving mechanism, and in the die assembly process, the first annular component makes contact with the O ring and presses the O ring into the groove, so that installation work of the O ring is achieved. Compared with the prior art, the O-ring mounting jig is simple in structure and convenient to operate, O-rings can be efficiently, quickly and accurately mounted by means of the design of the jig, the problem of damage to a spring seal is not easily caused, the production efficiency is effectively improved, and the error rate and the production cost are reduced.

The present application relates to a kind of pyrotechnics transient adiabatic pressure testing device and method.Utilize pressure measuring bomb to gather the output energy of pyrotechnics, form initial pressure;Utilize piston rod and hydraulic medium to realize the transient adiabatic of pressure sensor and pyrotechnics pressure transmission;Select suitable pressure sensor to obtain pressure signal, the inherent frequency of pressure sensor meets the frequency characteristic demand of test system;According to pressure test precision needs and O ring friction force calculation formula, select O ring;Design reasonable exhaust hole, exclude the air component in pressure medium, so that pressure medium meets Pascal theorem.The present application has good repeatability, eliminates the adverse effects of lumen effect on pyrotechnics pressure test results, can isolate the transient high-temperature combustion gas generated when pyrotechnics works, effectively avoid the influence of temperature on test results.

The utility model relates to the field of slow -descent ware production equipment discloses a kind of slow -descent ware's O ring automatic feeding assembly device, including rack, feeding mechanism, distributing mechanism, propping mechanism and assembly mechanism;Feeding mechanism is located on rack, and it includes the feeding channel for continuously conveying O ring one by one;Distributing mechanism and propping mechanism are all located on rack, distributing mechanism is used to shift the O ring of the last end of feeding channel to propping mechanism, and propping mechanism is used to prop open O ring;Assembly mechanism is located on rack, and it is used to shift and sleeve joint the O ring on propping mechanism on the rotating shaft in rotating shaft fixture.The utility model can solve how to improve the assembly efficiency and quality of slow -descent ware O ring, and reduce the problem that the situation of slow -descent ware poor sealing caused by O ring distortion, folding and other defects appears.

The utility model relates to the technical field of anti-deformation tools, and discloses a vacuum test anti-deformation tool for a seal welding pumping source, which solves the problem that the existing pumping source possibly deforms under the action of pressure to influence an internally assembled light path, and comprises a bottom plate, a pressing mechanism is arranged on the bottom plate, and a clamping mechanism is arranged on the bottom plate. A pumping source is placed at the top of the bottom plate, an O-shaped ring is arranged at the top of the pumping source, an upper cover is arranged at the top of the O-shaped ring, the pressing mechanism comprises two side plates symmetrically fixed to the outer side of the upper cover, the bottoms of the two side plates are fixedly connected with vertical plates, and the two vertical plates penetrate through the bottom plate and are movably connected with the bottom plate. The two sides of the pumping source are symmetrically and fixedly connected with two side blocks, and the top of the bottom plate is fixedly connected with a plurality of stand columns. According to the utility model, the upper cover can move downwards, and the O-shaped ring can extrude the pumping source conveniently, so that the pumping source is compressed without being scratched, and the deformation of the pumping source caused by pressure difference can be reduced conveniently.

The utility model discloses an electric blast pump capable of rotating by 360 degrees, which comprises an air pipe assembly and a silica gel O-shaped ring, an air pipe joint is mounted at the upper end of the air pipe assembly, an air nozzle is arranged at the bottom of the air pipe assembly, a fixing nut is arranged on the rear side of the air pipe joint, the silica gel O-shaped ring is arranged on the rear side of the fixing nut, and the silica gel O-shaped ring is arranged on the rear side of the fixing nut. The rear side of the silica gel O-shaped ring is provided with an adapting ball head. According to the electric inflation pump capable of rotating by 360 degrees, the air pipe assembly and the air pipe connector are assembled and used, rotation can be achieved without dead angles, use is more convenient, the electric inflation pump is suitable for more occasions, the air flow is not affected, the rubber sleeve is convenient to assemble through sleeved connection between the rotating sleeve and the rubber sleeve, meanwhile, the rotating sleeve is rotated to be connected with the air pipe assembly, and the air pipe assembly is convenient to assemble. And the rubber sleeve plays a role in protecting the outer wall of the air pipe assembly, the inner wall of the rotating sleeve can be prevented from making direct contact with the air pipe assembly, and therefore the completeness of the air pipe assembly is guaranteed.

The utility model relates to the technical field of pipeline fittings, and discloses an anti-cavitation pressure reducing valve, which comprises a valve body, a valve rod, an O-shaped ring, a sealing ring, a valve disc, a spring, a diaphragm, a valve cover and an exhaust valve, and is characterized in that a valve seat is arranged on the valve body, the valve rod is arranged in the valve seat, the sealing ring is arranged on the valve seat, and the valve disc is arranged on the sealing ring. According to the anti-cavitation pressure reducing valve, the anti-cavitation pressure reducing valve comprises a valve body, a valve rod, an O-shaped ring, a sealing ring, a valve disc, a spring, a diaphragm, a valve cover and an exhaust valve, a valve seat is arranged on the valve body, meanwhile, a valve clack of the valve seat is designed in a cage winding mode, the cage winding type valve clack can reduce the corresponding flow speed of fluid in the using process, and therefore the valve body is protected against cavitation. The air flow caused by the reduction of the flow speed is reduced at the same time, cavitation can be well avoided, the service life of the valve body, the valve seat and the valve rod is greatly prolonged, manual exhaust operation can be carried out on the upper side of the valve cover, and the noise and vibration phenomena in the using process are reduced.

The utility model relates to an assembling mechanism used in an automatic wiring harness assembling double-check-ring device, and belongs to the technical field of new energy automobile compressor equipment. The device comprises a large spring, an assembling top mounting plate, an up-down moving mounting plate, a floating assembly, a variable-diameter air cylinder, an unlocking air cylinder part, an assembling head, an unlocking air cylinder part mounting plate, a variable-diameter reset spring, a check ring assembling needle and an O-ring recognition mechanism, and the large spring is arranged between the floating assembly and the assembling top mounting plate; the floating assembly is connected with the up-down moving installation plate, the unlocking air cylinder part is fixed to the unlocking air cylinder part installation plate, the unlocking air cylinder part installation plate is installed on the up-down moving installation plate, the assembling head is arranged on the lower portion of the unlocking air cylinder part installation plate, the variable-diameter air cylinder is installed on the up-down moving installation plate, and the assembling top installation plate is fixed to the floating assembly. The device is reasonable in structural design, safe, reliable, high in assembly efficiency, low in cost, capable of achieving detection and capable of meeting use requirements.

The utility model discloses a concealed sensor control valve which comprises a valve body and an actuator connected with the valve body and provided with an output shaft, a valve seat connected with a valve element and a valve rod connected with the valve element and connected to the output shaft are arranged in the valve body, and a gasket and an O-shaped ring which are connected with the inner wall of the valve body in a sealed mode are arranged on the periphery of the middle of the valve rod in a sleeved mode. The upper portion of the valve rod is sleeved with filler and a filler gland located above the filler, containing through holes which are located on the same axis, are of the same structure and are used for containing a sensor wire are formed in the axial direction of the output shaft and the axial direction of the valve rod, and a sealing plug surrounding the sensor wire is arranged at the communicating position of the two containing through holes. The inner wall of the lower end of the valve rod is connected to the sensor probe, and the inner wall of the lower end of the valve rod is connected to the sensor probe. According to the utility model, the sensor lead can be prevented from being exposed, the measurement precision of the temperature sensor in the valve body is ensured, the sensor probe is prevented from loosening when being impacted by liquid, and the sealing performance and the stability of the sensor probe are ensured.

The utility model relates to air-cooled heat pump evaporator technical field, concretely is air-cooled heat pump evaporator mechanical sealing type pipeline interface device, including evaporator body, be provided with connecting pipe on the evaporator body, the one end of connecting pipe is provided with the interface pipe, the inner wall on the one end of connecting pipe is provided with the internal thread groove, the one end of interface pipe is provided with the external thread connecting end, and the external thread connecting end is connected with internal thread groove threadedly. This air-cooled heat pump evaporator mechanical sealing type pipeline interface device, through the cooperation of evaporator body, connecting pipe, interface pipe, external thread connecting end, internal thread groove, first sealing sleeve, second sealing sleeve, O ring gasket, embedding groove, first flange and second flange, the connection of interface pipe and connecting pipe realizes three -fold sealing by first sealing sleeve, second sealing sleeve and O ring gasket, effectively prevents refrigerant leakage, improves sealing performance, ensures the normal operation of air-cooled heat pump evaporator.

The axial static sealing ring structure for the GIS comprises a sealing ring body, and the hole wall of an inner hole of the sealing ring body is provided with an air pressure side upper one-way valve type sealing lip extending upwards in an inclined mode towards the gas side of the GIS and an air pressure side lower one-way valve type sealing lip extending downwards in an inclined mode. The plane where the upper edge of the air pressure side upper one-way valve type sealing lip is located is higher than or flush with the plane where the upper edge of the sealing ring body is located. The plane where the lower edge of the air pressure side lower one-way valve type sealing lip is located is lower than the plane where the lower edge of the sealing ring body is located. First sealing is formed by arranging the air pressure side upper one-way valve type sealing lip and the air pressure side lower one-way valve type sealing lip, second sealing is formed by arranging the sealing ring body to be an O-shaped ring, and third sealing is formed by arranging the outer side upper end face static sealing lip and the outer side lower end face static sealing lip. And the advantage of good rebound resilience of the O-shaped ring is reserved, and three seals are formed, so that the sealing effect is greatly improved.

The utility model discloses a voltage buildup unit of a braking system, and relates to the technical field of vehicle braking. Comprising a valve block, a motor and a lead screw assembly. The valve block is provided with a pressure buildup part and an anti-rotation part which are coaxial, the interiors of the pressure buildup part and the anti-rotation part are of hollow structures, a pressure buildup cavity and an anti-rotation cavity which correspond to each other are formed, the pressure buildup cavity is communicated with the anti-rotation cavity, and a piston which is in sliding sealing connection with the pressure buildup cavity is arranged in the pressure buildup cavity; the lead screw assembly comprises a nut and a lead screw, the nut and the lead screw are located in the anti-rotation cavity, the nut is in driving connection with the piston, and the anti-rotation part is matched with the nut to prevent the nut from moving in the circumferential direction; and one part of the lead screw extends out of the anti-rotation cavity and is in driving connection with a motor. The PSU flange and the anti-rotation piece are integrated on the valve block, more connecting parts do not need to be arranged, the assembling process is simple, the assembling efficiency is high, product failure caused by O-shaped ring failure is avoided, the number of assembled sample pieces is reduced, and the cost is reduced.

The invention relates to the technical field of hydraulic cylinder piston sealing ring installation and maintenance equipment, and discloses a simple and convenient piston glyd ring combined sealing installation device which is characterized by comprising a conical cylinder guide table and a pressing ring expansion sleeve, the left end of the conical cylinder guide table is a hollow cylinder, and an inner hole of the hollow cylinder is matched with the outer diameter of a piston; the length of the hollow cylinder is equal to the length of the side, provided with the sealing ring, of the piston, the right end of the conical cylinder guide table is of a circular-truncated-cone-shaped structure, the left end of the pressing ring expansion sleeve is of a taper-variable conical shell structure, and the right end of the pressing ring expansion sleeve is of a step circular-ring-shaped structure used for evenly applying force. When the Glyd ring sealing device is used, the O-shaped ring of the Glyd ring is firstly arranged in the sealing groove along the conical shaft of the conical cylinder guide table, then the Glyd ring is slowly pushed into the sealing groove through the pressing ring expansion sleeve, and finally the Glyd ring is tightened and fixed through the inner taper of the pressing ring expansion sleeve. The device is simple in structure and convenient to operate, the sealing performance of the Glyd ring combined seal can be improved, and the safety performance and the supporting capacity of the piston are greatly improved.

Piston balance type high pressure rotary sealing device, by hollow rotating shaft 1, bearing snap spring 2, bearing spacer ring 3, hollow plug 4, sealing plate 5, high pressure resistant filling grease 6, piston outer diameter sealing ring 7, end face sealing O ring 8, transmission medium outlet 9, bearing 10, shell 11, rotating shaft diameter surface sealing O ring 12, hollow piston 13, transmission medium inlet 14. Transmission medium is from 14 inlet to 9 outlet, hollow rotating shaft 1 and hollow piston 13 divide the right cavity of shell 11 into two, make the right side of piston 13 become transmission medium sealing cavity, left side become high pressure resistant grease 6 sealing cavity, thus form balanced rotary sealing to transmission medium, at the same time, utilize the poor flowing characteristic of high temperature resistant grease, carry out multi-stage combined variable contact pressure O ring rotary sealing.

The utility model relates to the technical field of pipeline structures, and discloses a mechanical seal flushing pipeline structure of a bottom-feeding stirrer, which comprises a spacer fluid inlet pipe orifice, a static ring is arranged on one side of the spacer fluid inlet pipe orifice, a movable ring is arranged on the top of the static ring, an O-shaped ring is arranged on one side of the movable ring, a spring is arranged on the top of the O-shaped ring, and a sealing ring is arranged on the other side of the spring. The top of the spring is provided with a shaft sleeve, one side of the shaft sleeve is provided with a bolt, the bottom of the bolt is provided with a filler seal, and the bottom, communicated with the spacer fluid outlet pipeline, of the filler seal flushing pipeline is provided with a first spacer fluid outlet pipe. Water at the flushing outlet of the double-end-face mechanical seal is led to the labyrinth seal to be used for flushing the labyrinth seal, so that sealing water of the double-end-face mechanical seal does not need to be treated, only water is fed, water return and water cooling circulation facilities do not need to be arranged, and the operation difficulty is greatly simplified.

The present application relates to sand blasting bottle, including air outlet pipe, air inlet seat, connector, O ring a, bottle cap and bottle body, base and connector connected with bottle cap in turn, air inlet seat is rotatably connected with connector, air inlet seat and connector are sealed through O ring a, air inlet seat and connector have sealed air flow cavity, the lower end surface of air inlet seat and connector are respectively provided with air inlet hole a and air inlet hole b which are communicated with air flow cavity, base is provided with air inlet hole c which is communicated with the inner cavity of bottle body and air inlet hole b; air inlet seat and connector are respectively provided with through hole a and through hole b which are communicated with air flow cavity, base is provided with through hole c which is communicated with the inner cavity of bottle body and through hole b, the lower end of air outlet pipe is in through hole a, the upper end of air outlet pipe is inserted into the inner cavity of bottle body through air flow cavity, through hole b and through hole c in turn. Air inlet hole a and air inlet hole b do not need to be aligned, and they can be assembled together at any angle, making installation more convenient.

The invention relates to the technical field of valve assembly assembling equipment, in particular to a valve seat assembling system and a working method. The valve seat assembling system comprises a valve seat feeding device, a transfer sliding table, an O-shaped ring feeding and assembling device, a reversing ejector rod assembling device, a grease injection device and a ceramic ball feeding and assembling device. The valve seat on-line automatic assembling machine sequentially completes valve seat feeding, valve seat transferring, O-shaped ring feeding and assembling, reversing ejector rod assembling, lubricating grease injecting and ceramic ball feeding and assembling, can completely replace the manual valve seat assembling process in the prior art, does not need manual intervention, and has the advantages of reducing labor intensity, reducing labor cost and improving assembling efficiency. The mechanization level and the automation level of valve seat assembly are improved, the working efficiency of valve seat assembly is improved, and large-scale production and application of valve seat assembly can be achieved; various assembling modes can be achieved, and mixed assembling production of three process routes including valve seat full-process automatic online assembling, valve seat semi-finished product online assembling and valve seat spare part assembling can be achieved.

The utility model relates to the technical field of pipe joints, and discloses a high-pressure heavy ferrule type pipe joint, which is characterized in that connecting shafts on two sides are connected to two sides of the outer wall of an inner pipe, a pipe joint is connected to the outer walls of the connecting shafts on two sides, ferrule nuts are screwed at two ends of the pipe joint, pressure grooves are arranged on two sides of the outer wall of the inner pipe, and the pressure grooves are connected with the pipe joint. According to the high-pressure heavy ferrule type pipe joint, when the pipe joint is connected with an external guide pipe, the pipe joints on the two sides are allowed to move within a certain range so as to adapt to the installation requirements of different guide pipes, when the connection position needs to be adjusted, the pipe joint can slide in the axial direction of the connecting shaft, and due to the fact that the connecting shaft is fixed to the inner pipe, the pipe joint is not prone to falling off. And the pipe joint is movably connected outside the connecting shaft in a sleeving manner, so that the position of the pipe joint can be adjusted relative to the inner pipe, and after adjustment is completed, the ferrule nut is screwed to firmly clamp the guide pipe to form sealing, so that the guide pipes at different intervals can be conveniently connected.