935results about "Screw threaded joints" patented technology

Apparatus and related method for coupling adjacent pipe lengths, for example, a drop pipe assembly that utilize an intermediate coupling member to prevent rotational disengagement of adjacent pipe lengths under the influence of rotational torque. The coupling member can comprise an internal key feature that physically engages a keyed end on at least one end of a length of pipe. The internal key feature can include key members located on each coupling end of the coupling member such that the key members engage corresponding keyed ends of adjacent lengths of pipe such that the coupling member prevents rotation of the adjacent pipe length relative to each other.

A fastener for connecting a coated conduit to a fitting or to another coated conduit includes a bushing and polymeric material coating and surrounding an external surface of the bushing. The bushing includes internal and external threading The polymeric material includes a central portion coating at least the first end of the bushing, a first flexible sleeve extending from the central portion in a first direction and creating a cavity, and a second flexible sleeve extending from the central portion in a second direction, opposite the first direction. The external threading of the bushing is configured to be threaded into a fitting or conduit such that the first flexible sleeve fits over a circumference of the fitting or a coated conduit, and the internal threading of the bushing is configured to be threaded onto coated conduit such that the second flexible sleeve fits over a circumference of the coated conduit.

A recreational vehicle waste delivery system with lengths of 3D cylindrical non-flexible tube and of 3D cylindrical flexible-tube, a first-coupler and, a second-coupler. The first coupler, the at least one flexible-tube, the second-coupler and the at least one flexible-tube in combination are able to be removably couplable modularly in series to provide an adjustable, modular waste management system for delivering waste from an rv to an in-ground sewer connection when engaged with a disposal fitting of the rv.

The utility model relates to the related technical field of gas connectors, and provides a direct insertion type gas hose connector with a gas leakage prevention structure. The direct insertion type gas hose connector comprises a connector body and a gas hose, the gas hose is arranged at one end of the connector body in a sleeving mode, and an outer sleeve layer is arranged outside the connector body; the pressing and sealing assembly is arranged between the connector body and the outer sleeve layer, the reinforcing and supporting assembly is arranged outside the outer sleeve layer, the pressing and sealing assembly comprises an outer thread layer, the outer thread layer is arranged outside the connector body, an outer ring groove is formed in the surface of the connector body, and the outer sleeve layer is connected to the outer thread layer in a screwed mode through threads. By means of the technical scheme, the technical problems that in the prior art, due to movement of equipment and vibration of a pipeline, a connector is loosened, the sealing effect is greatly reduced, due to temperature change, a hose and a connector material are shrunk or expanded, and a sealing structure is damaged are solved.

A circulating circuit member 1 forms a part of a circulating circuit through which a fluid flows. The circulating circuit member 1 includes a pipe 4; a to-be attached member that has a sleeve portion 3 made of synthetic resin to which the pipe 4 is rotationally connected; and a pin 6 that is inserted from the sleeve portion 3 to the pipe 4, in which a pin insertion hole 5 of the sleeve portion 3 through which the pin 6 is inserted is formed by a mold that is pulled out from an inside of the sleeve portion 3.

The invention discloses a combinable multi-way valve adopting a double-valve-element structure, and relates to the technical field of new energy automobile heat pump heat management systems, the combinable multi-way valve comprises a valve body, a first valve element, a second valve element, a valve element driving unit and a plurality of water pipe connectors; according to the combinable multi-way valve adopting the double-valve-element structure, the two independent valve cavities are formed in the single valve body, and the first valve element and the second valve element which are controlled by the valve element driving unit through a synchronous and asynchronous gear system are arranged; through cooperation of a middle sealing ring used for isolating a valve cavity and a connector sealing ring used for guaranteeing external sealing, cooperative and non-cooperative accurate rotation control over the two cylindrical valve elements can be achieved through a single motor driving system, and therefore the purpose that the two cylindrical valve elements can be accurately rotated and controlled on the premise that reliable sealing and independent action of the valve elements are guaranteed is achieved. The complexity of a mechanical structure and an electric control system controlled by multiple channels is remarkably simplified, and a solid structural foundation is laid for further realizing multifunctional integration.

The present invention provides a tube connector and a tube with a connector that allow for precise alignment of the tip position of a medical tube when attaching it. [Solution] A tube connector 12 for connecting a medical tube 11 to a medical device, comprising a female member 21 into which the medical tube 11 is inserted, a male member 22 that screws into the female member 21, and a packing 23 that is housed in the female member 21 and deforms as the male member 22 screws into the female member 21, thereby fixing the medical tube 11, wherein at least the male member 22 of the female member 21 and male member 22 is translucent.

The utility model discloses a waterway sealing structure, which is applied to a solar shower column, and at least comprises a column waterway sealing structure, the structure further comprises an upper column connecting cover which is sleeved at the lower end of an upper column of the solar shower column, and four arc-shaped clamping grooves which extend along the circumferential direction and are uniformly arranged at intervals are arranged in the upper column connecting cover; the arc-shaped clamping groove is provided with an opening part and a locking part; the lower column connecting cover is arranged at the upper end of a lower column of the solar shower column in a sleeving mode, four arc-shaped buckles which extend in the circumferential direction and are evenly arranged at intervals are arranged in the lower column connecting cover, and the sizes of the arc-shaped buckles are matched with the opening parts and the locking parts of the arc-shaped clamping grooves; in the rotating process of the upper column connecting cover relative to the lower column connecting cover, the arc-shaped buckle can slide to the locking part from the opening part, so that locking between the upper column connecting cover and the lower column connecting cover is formed; the middle sealing ring is arranged in a sealing ring placing groove in the lower column connecting cover; when the upper column connecting cover and the lower column connecting cover are locked, the middle sealing ring is extruded and wrapped by the upper column connecting cover and the lower column connecting cover in a two-way mode, and column water path sealing is formed after the upper column and the lower column are connected.

The utility model relates to the technical field of water delivery pipe sealing technology, more particularly to a kind of sealing pipe fittings, including pipe body unit and contact seal, several pipe body units are sequentially connected to form pipeline when installing, further including sealing compensation mechanism, sealing compensation mechanism is installed in the one end of pipe body unit cavity, sealing compensation mechanism includes drive part and compensation seal, drive part is connected with compensation seal, the side of contact seal and the side of compensation seal away from drive part abut, the other side of contact seal and the inner wall of pipe body unit and the end surface of another pipe body unit abut.The utility model can self-adapting compensation sealing ring ageing abrasion or the problem of sealing failure caused by pipe fittings thermal expansion and cold shrink, improve the fatigue resistance and service life of sealing structure.

This utility model discloses a high-efficiency hot and cold water stratification anti-electric shock wall water inlet pipe, relating to the field of hardware equipment technology. The utility model includes a connecting pipe, the top of which is connected to a water supply pipe, and an isolation pipe fixedly connected to the surface of the water supply pipe; a buffer assembly is installed inside the isolation pipe. This utility model significantly improves the hot and cold water stratification effect by setting up four sets of twisted circulation pipes arranged circumferentially around the water supply pipe, and buffer pipes perpendicularly aligned with the circulation pipes. When cold water enters the circulation pipe through the water supply pipe, the twisted design extends the water flow path, reduces water pressure, and slows down the flow rate. The buffer pipes cooperate with the buffer tank, causing the water flow discharged from the circulation pipe and the buffer pipe to collide vertically within the buffer tank, offsetting high-pressure impacts and reducing eddy current generation. This structure effectively avoids the problem of hot and cold water mixing caused by cold water directly entering the hot water layer, ensuring stable hot and cold water stratification in the water storage tank and improving the continuity and comfort of hot water output.

To efficiently remove a coating material covering the outside and inside of a pipe joint without any trouble.SOLUTION: A coating removal tool 10 removes a coating material of a joint part in which a spiral groove is formed, the coating removal tool comprising a rod-shaped body part 1 having a handle 11 that can be held by hand, and a first removal blade part 2 provided at one longitudinal end part of the body part. The first removal blade part 2 has a blade 21 consisting of a plurality of peaks and valleys along a longitudinal direction of the body part 1.SELECTED DRAWING: Figure 1

The hydrogen pipeline connecting device capable of being rapidly disassembled and assembled comprises a second pipeline, a circular ring groove is formed in the right side of the second pipeline, a circular ring block is arranged in the circular ring groove, a first pipeline is fixedly connected to the right side of the circular ring block, a first fixing block is fixedly connected to the outer side of the first pipeline, and a second fixing block is fixedly connected to the outer side of the first fixing block. The first fixing blocks are arranged on the two sides, square blocks are fixedly connected to the outer sides of the second pipelines, fixing structures are arranged between the square blocks and the first fixing blocks, threaded covers are slidably connected to the right sides of the square blocks, grooves are formed in the threaded covers, the second fixing blocks are arranged in the grooves, and the fixing structures comprise concave holes. The concave holes are formed in the left side and the right side of the first fixing block. Through the arrangement of the fixing structure, a worker can manually disassemble the hydrogen pipeline without the help of a tool, and the hydrogen pipeline is convenient, rapid, time-saving and labor-saving.

The utility model discloses a plug-in movable joint of a refrigeration pipeline in the technical field of refrigeration pipeline connection, which comprises a butt joint solenoid, a connection main body, a clamping pipe, a clamping pipe fastener, a positioning ring and a non-return clamp spring, and the butt joint solenoid and the clamping pipe are respectively in butt joint with openings at two ends of the connection main body in a sealing way; the two independent butt joint pipes are in sealed butt joint through the butt joint screw pipe, the connecting body and the clamping pipe to form a communicated pipeline, the joint structure of the device is in multi-stage continuous sealing, the two independent butt joint pipes can be connected in a sealed mode, the sealing degree is high, only the connecting body needs to be screwed during butt joint, operation is easy, and meanwhile the butt joint effect is good. During connection, open fire welding, operation of professionals and professional equipment are not needed, space limitation is avoided, insertion is stable, the butt joint pipe can be effectively locked, threads can be locked through deformation of the connection body, and the threads are effectively prevented from loosening in the equipment vibration process.

The utility model discloses a sealing interface structure and a liquid cooling system. The sealing interface structure has an axial direction and comprises a matching part and a plug connector. The matching part is provided with a matching end face at one axial end and a connector, and an inner smooth section and an inner thread section are sequentially arranged on the inner wall of the connector in the axial direction. The plug connector is provided with a connector extending in the axial direction, and an outer smooth section and an outer thread section are sequentially arranged on the outer wall of the connector in the axial direction. Wherein the external thread section is in threaded fit with the internal thread section so that the plug connector can be connected to the plug connector, a sealing ring is embedded in at least one of the external smooth section and the internal smooth section, and the sealing ring is clamped between the external smooth section and the internal smooth section so as to be used for sealing the external smooth section and the internal smooth section. In the process that the connector is screwed into the connector, the sealing ring can be extruded more evenly under the limitation of a thread fit structure, and therefore the sealing reliability is guaranteed. And on the other hand, the fitting and the plug connector can be fixed only through thread fit, the overall structure is simple, and the occupied space is small.

The utility model provides a vehicle push -and -pull sheath pipe with waterproof sealing device relates to vehicle push -and -pull sheath pipe technical field, include: the sleeve body, both ends of sleeve body are equipped with fixed establishment, the fixed establishment includes sleeve piece, the outer surface of sleeve piece is sleeved with thread ring, the thread ring is connected with sleeve piece threadedly, the outer surface of sleeve piece is sleeved with sliding ring, spring no.

The utility model belongs to natural gas hydrogen terminal equipment pressure stabilizing field especially natural gas hydrogen terminal equipment pressure stabilizing interface, in view of the single installation mode of traditional gas pressure stabilizer, lack of support and easy to loosen and leak etc. problem, present the following scheme, it includes flange type pressure stabilizing valve main part, is equipped with internal thread in the flange type pressure stabilizing valve main part import and export inner wall, compatible screw thread and flange two kinds of connecting mode, adapt to the demand of many scenes. The recessed cylinder and U-shaped support frame are arranged on the top of the mounting seat, which can bear the weight and vibration impact of the pressure stabilizing valve to prevent leakage. The adjuster in the recessed cylinder can accurately adjust the height of the support frame by rotating the hand wheel, which is suitable for different types of pressure stabilizing valves and saves installation and debugging time. In addition, a loosening preventer is also provided. Rotating the butterfly screw makes the arc plate and the rotating rod tightly contact. The second rubber pad generates friction to prevent the rotating rod from rotating, keep the height of the support frame stable, ensure that the pressure stabilizing valve is always in a good support state, and ensure the safe and stable operation of the system.

The utility model belongs to the technical field of pipeline construction, and particularly relates to a connecting device for drainage pipeline construction, which comprises two water conveying pipe bodies, a threaded propelling pipe is arranged on one side of one water conveying pipe body, and one side of the threaded propelling pipe is rotatably connected with a rotary connecting seat. One side of the rotary connecting seat is fixedly connected with an annular sealing rubber wall, the other side of the annular sealing rubber wall is fixedly connected with an annular supporting plate, and one end of one water conveying pipe body sequentially penetrates through the threaded propelling pipe, the rotary connecting seat, the annular sealing rubber wall and the annular supporting plate; according to the connecting device, the annular sealing rubber wall can fill the space in the inner bin of the outer wrapping seat, a good sealing environment is formed between the inner bin of the outer wrapping seat and the annular sealing rubber wall, meanwhile, external protection of the whole connecting position can be improved, and the sealing effect of the whole connecting device can be further improved.

The utility model provides an improved shower faucet angle valve, angle valve body outer wall extends and is equipped with the water passing part, and the water passing part is formed with the water passing channel, and the water passing part includes the first end fixed connection with angle valve body and the second end away from angle valve body, and the second end is detachably connected with the joint part, the recess is equipped with in the circumferential direction in the water passing part outer wall middle part, the joint part includes the nut, the reverse screw and is used for locking the first bolt of nut in the recess, the reverse screw is installed in the nut inside and is connected with the water passing part, and the nut is equipped with the through hole along the radial direction, and the first bolt is installed in the through hole. Breakthrough with the joint part and the water passing part's connection point is improved from the single point connection of the reverse screw and the water passing part to the double point connection of the nut, the reverse screw and the water passing part, realizes the breakthrough in stability, life, cost three dimensions, and has the innovation and the industrial practicability.

The utility model relates to the technical field of pipe fittings, in particular to a two-way inner socket sealing pipe fitting which comprises a socket pipe, a socket and a spigot are integrally formed at two ends of the socket pipe respectively, an edge groove is formed in the outer ring surface of one end of the spigot, a rubber cover is fixedly sleeved in the edge groove, and one end of the rubber cover is inserted into the spigot; the pipe fitting has the beneficial effects that through the unique structural design, double sealing between the inserting opening and the conveying pipe and between the bellmouth and the conveying pipe is achieved, and the sealing performance and stability of the pipe fitting are improved. Meanwhile, the pipe fitting further has the advantages of being easy and convenient to install, convenient to disassemble, low in cost and the like, and is suitable for connection of various pipeline systems.

The utility model discloses a connector sealing structure of a water inlet connecting pipe, which comprises a first connecting pipe and a second connecting pipe, and the surface of the first connecting pipe is sleeved with a connecting sleeve; the surface of one side of the connecting sleeve is fixedly connected with a connecting box, the connecting box is connected with the first connecting pipe in a sleeving mode, one side of the surface of the second connecting pipe is connected with a sealing ring in a penetrating mode, sliding grooves are symmetrically formed in the first connecting pipe, and sliding rods are fixedly installed in the sliding grooves. The pressing assemblies are symmetrically arranged on the two sides of the connecting box; the pressing assembly comprises a fixing sleeve connected with the connecting box in a penetrating mode. Through the arrangement of the pressing assembly, after the first connecting pipe and the second connecting pipe are in threaded connection, the threaded connection part is tighter under the action of the pressing assembly, connection looseness caused by factors such as pressure fluctuation and vibration in the pipeline is reduced, and therefore the connection reliability and the overall strength are improved.

The utility model discloses a quick-release threaded pipe, belongs to the technical field of pipeline structures, and provides a threaded pipe which can be directly and quickly disassembled and assembled without using tools, and comprises a splicing pipe and a push-pull handle, the main body part of the splicing pipe is a main pipe body, the middle part of the main pipe body is provided with an outer convex conical ring, and the end part of the main pipe body is provided with a connecting end; external threads are arranged on the outer side face of the connecting end, the two push-pull handles are fixedly connected through the connecting piece, the outer convex conical ring is located between the two push-pull handles and provided with a pair of symmetrical circular truncated cones, the axes of the two circular truncated cones are collinear with the axis of the main pipe body, each push-pull handle comprises a force application disc, and the inner wall of each force application disc is provided with an inner concave conical surface. The push-pull handle structure for rotation constraint is designed in the middle of the splicing pipe with the threaded structures at the two ends, and when the threaded pipe is disassembled and assembled, component force in the tangential direction of the spiral line is provided, so that operation can be achieved without using a wrench tool, the disassembly and assembly operation is simplified, and the disassembly and assembly efficiency is improved.

The present invention relates to a lift plug for connection with a tubular member, the lift plug comprising: a tubular body comprising an externally threaded portion; one or more bores extending through the tubular body within the externally threaded portion; and a flange located at the first end of the tubular body for engagement with a lifting mechanism.

The utility model provides a large pipeline two-way connecting assembly, which relates to the technical field of mechanical engineering and comprises a first connecting pipe body, an annular sealing groove is arranged on one side of the first connecting pipe body, a second positioning flange is arranged on the surface of the first connecting pipe body, and a positioning bolt is arranged in the second positioning flange. A second connecting pipe body is arranged on one side of the first connecting pipe body, a first positioning flange is arranged on the surface of the second connecting pipe body, an annular boss is arranged on one side of the second connecting pipe body, an annular sealing groove is formed in one side of the first connecting pipe body, and an elastic sealing ring is arranged at one end of the annular sealing groove. And the design of the annular sealing groove provides an accurate mounting position for the elastic sealing ring, so that the elastic sealing ring can stably play a sealing role. The matching of the annular sealing groove and the elastic sealing ring is equivalent to the construction of a double-sealing structure, so that the sealing effect is greatly enhanced, and the leakage of a fluid medium in a pipeline is effectively prevented.

An oil-well metal pipe according to the present disclosure includes a resin coating on or above at least one of a pin contact surface and a box contact surface. The resin coating contains: a resin: 50.0 to 99.5 mass %, a wax: 0 to 10.0 mass %, a fluorine-based additive: 0 to 30.0 mass %, graphite: 0 to 10.0 mass %, a rust preventive pigment: 0 to 30.0 mass %, a coloring pigment: 0 to 10.0 mass %, a coupling agent: 0 to 10.0 mass %, and one type or two types selected from a group consisting of a magnesium silicate hydroxide powder: 1.5 to 50.0 mass % and TiO2: 0.5 to 30.0 mass %; and satisfies Formula (1).(W+F+G) / (M+T)≤5.00  (1)

The utility model relates to the technical field of rotary joint equipment, and provides an impingement type water pipe rotary joint which comprises a sewer pipe and an impingement water pipe body, and a connector body is arranged on the inner wall, close to the bottom, of the sewer pipe. A worker rotationally connects a sewer pipe internal connector body with a threaded groove in the surface of an impact water pipe body, then a handle is rotated to drive a rotating wheel to synchronously rotate through a rotating shaft, the rotating wheel rotates to enable a threaded rod to rotate through a nut disc, and the threaded rod rotates to promote a fixing block close to the nut disc to move towards the other fixing block; the fixed block moves and drives the surface of the soft leather sheath to clamp the impact water pipe body, so that the problems that the service life of each connector capable of changing the direction is extremely short under the impact of the impact water pipe, the connector is not damaged by washing, that is, a slippery wire on the inner wall is corroded by microorganisms in water flow, and the service life is short are solved; therefore, the problem that the worker needs to check and replace the joint ceaselessly is solved.

An oil-well metal pipe including a Zn-Ni alloy plating layer that has high adhesion is provided. An oil-well metal pipe according to the present disclosure includes: a pipe main body that includes a pin which includes a pin contact surface including an external thread part and which is formed at a first end portion, and a box which includes a box contact surface including an internal thread part and which is formed at a second end portion; and a Zn-Ni alloy plating layer which is formed on at least one of the pin contact surface and the box contact surface. The X-ray diffraction intensities of the Zn-Ni alloy plating layer satisfy Formula (1). I18 / I18+I36+I54≥0.60 Here, in Formula (1), in units of cps, an X-ray diffraction intensity of {411} and {330} is substituted for I18, an X-ray diffraction intensity of {442} and {600} is substituted for I36, and an X-ray diffraction intensity of {552} is substituted for I54.

The utility model relates to the technical field of movable joints, and discloses a movable joint of a plastic rod metal cap, which comprises a connecting pipe and a plastic rod, one end of the plastic rod is fixedly connected with a joint, external threads are arranged on the outer wall of the joint, a sealing assembly is arranged on the outer wall of the joint, and the sealing assembly comprises a first sealing gasket. The inner portion of the first sealing washer is fixedly connected to the outer wall of the connector, a metal cap body is arranged on the outer wall of the connector, first internal threads matched with the external threads are arranged in the metal cap body, a second sealing washer is fixedly connected to one side of the metal cap body, and the first sealing washer makes contact with the plastic rod and the metal cap body. According to the utility model, the sealing washer I is arranged on the joint, and then the joint is screwed and connected with the metal cap body through the external thread and the internal thread, in the process, the sealing washer I is compressed to form effective sealing, and meanwhile, the sealing washer II is positioned at the port of the metal cap body to further enhance the sealing effect, so that the stable sealing effect is realized.

The water inlet sealing structure of the anti-explosion valve comprises a shell and a water inlet end cover, a water passing inner cavity used for installing an anti-explosion assembly is formed in the shell, and the water inlet end cover is connected to a water inlet of the water passing inner cavity in a threaded mode; an external thread section is formed on the periphery of the water inlet of the shell, the water inlet end cover extends out of the water inlet of the water passing inner cavity to form an installation section, and a sealing ring is installed on the outer wall of the installation section. Therefore, according to the water inlet sealing structure of the anti-explosion valve, the sealing ring is installed on the installation section extending into the water inlet of the water passing inner cavity, and the thickness of the installation section can be set according to needs without being limited by threads. Therefore, the strength of the position where the sealing ring is located is guaranteed, and the risk of sealing failure is reduced.