WO2019080364A1 - Robinet - Google Patents

Robinet

Info

Publication number
WO2019080364A1
WO2019080364A1 PCT/CN2018/000371 CN2018000371W WO2019080364A1 WO 2019080364 A1 WO2019080364 A1 WO 2019080364A1 CN 2018000371 W CN2018000371 W CN 2018000371W WO 2019080364 A1 WO2019080364 A1 WO 2019080364A1
Authority
WO
WIPO (PCT)
Prior art keywords
sealing
piece
outer casing
static
valve stem
Prior art date
Application number
PCT/CN2018/000371
Other languages
English (en)
Chinese (zh)
Inventor
张南新
Original Assignee
新化县新园电子陶瓷有限公司
张南新
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 新化县新园电子陶瓷有限公司, 张南新 filed Critical 新化县新园电子陶瓷有限公司
Publication of WO2019080364A1 publication Critical patent/WO2019080364A1/fr

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/04—Construction of housing; Use of materials therefor of sliding valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/12—Covers for housings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
    • F16K3/02—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing with flat sealing faces; Packings therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K3/00—Gate valves or sliding valves, i.e. cut-off apparatus with closing members having a sliding movement along the seat for opening and closing
    • F16K3/30—Details

Definitions

  • the invention relates to the technical field of water flow control switch structures, in particular to a water tap.
  • the faucet is a commonly used household water flow control switch, and the water flow control part often adopts a spool mechanism.
  • the existing valve body mechanism has a complicated structure, including a valve sleeve, a valve stem, a moving piece, a static piece, a sealing ring and other auxiliary structures, and needs to be waterproof and leakproof inside the valve core mechanism and between the valve body mechanism and the valve body. Measures, and double-layer waterproof and leak-proof measures will contact the water flow erosion in the valve body cavity. Once there is leakage in one part, it will easily lead to leakage of the entire valve body structure.
  • valve stem is one of the frequently rotating parts in the sealing water valve, and it is difficult to completely seal between the valve stem and the surrounding structure, generally sealed by a sealing ring, but once the water enters and contacts the sealing ring, the valve When the rod is frequently rotated, the seal ring is easily worn out, causing water leakage.
  • the invention provides a faucet to solve the technical problem that the existing faucet has a complicated structure, short service life, short life span and easy water leakage.
  • the invention provides a faucet comprising an outer casing, the outer casing is provided with an inlet connection nozzle, a water outlet and a fitting opening, and the assembly opening is connected to a circulation passage between the inlet connection nozzle and the water outlet, and the assembly port is provided with a control mechanism for regulating the flow of water flowing from the inlet connection nozzle to the water outlet, the control mechanism comprising a flow passage disposed at a bottom end of the inner cavity of the assembly opening and sealing between the inlet connection port and the water outlet for
  • the static sheet and the surface-fitted sealing gland forming the fixed circulation passage are formed on the static sheet to form an active circulation passage and are rotatably engaged with the fixed circulation passage of the static piece to form a flow passage of different radial sizes to control the flow and flow of the flow.
  • a sealing gland is disposed on the movable piece for closing the assembly opening and fixing the fastener for positioning the movable piece and the static piece in the axial direction, and the enclosed cavity in the fastener and the moving piece, and connecting the moving piece for controlling the moving piece
  • a valve stem for adjusting and restricting the radial movement of the rotor is rotated, and a drive mechanism for driving the rotation of the valve stem is disposed on the overhanging end of the valve stem.
  • the static sheet is capped on the circulation passage of the water outlet, or the static sheet is sealed on the circulation passage of the inlet connection nozzle.
  • the inner wall surface of the outer casing is provided with at least one circular cantilevered step which is cantilevered radially inward; the static piece is pressed on the surface of the ring of the cantilevered step, and is disposed between the static piece and the cantilevered step.
  • the sealing groove and the sealing ring are pressed and sealed between the static piece and the outer casing; the outer side wall of the static piece is further provided with a circumferential positioning member for circumferentially fixing the static piece in the inner cavity of the outer casing.
  • the inner wall surface of the outer casing is provided with a ring of cantilevered steps that are radially inwardly suspended; the static piece is pressed by a sealing ring for sealing between the static piece and the outer casing and buffering the upper pressing force.
  • the sealing ring is clamped between the static piece and the cantilevered step and abuts against the side wall surface of the inner body cavity; the outer side wall of the static piece is further provided with a circumferential surface for the static piece in the inner cavity of the outer casing Fixed positioning circumferential positioning member.
  • the sealing ring includes a first end surface for abutting against the end surface of the stationary piece and a second end surface for abutting against the surface of the ring surface of the cantilever step, the first end surface and the second end surface forming a pair of opposite ends a clamping surface;
  • the sealing ring further comprises an outer side surface for contacting the side wall surface of the outer casing of the outer casing and for contacting the inlet fluid to withstand the water flow pressure and compressing the sealing ring radially to the inner cavity side of the outer casing by the water flow pressure
  • the inner annular surface on the wall surface, the outer side surface and the inner annular surface constitute a set of unidirectional force receiving surfaces from the inside to the outside.
  • At least two layers are arranged between the valve stem and the inner wall of the fastener in a circumferential direction and are used for axial movement limitation and radial movement limitation of the valve stem to ensure stability of the circumferential rotation of the valve stem. Position the ring.
  • the fastener includes a sealing cover for covering the assembly opening, and the lower portion of the sealing cover is provided for sealing contact with the movable piece to close the valve stem in a cavity formed by the fastening of the fastener and the movable piece and
  • the sealing portion of the sealing opening is fastened, and the upper portion of the sealing cover is provided with a biasing portion for applying force when the sealing portion is connected with the mounting opening of the outer casing, and the middle portion of the fastener is provided with a through hole for sealing and assembling the valve stem in the axial direction.
  • a fastening connection is provided between the fastener and the outer casing, and a sealing mechanism is provided between the fastener and the inner cavity of the outer casing.
  • the static piece is provided with at least one fixed fluid passage extending in the axial direction, and the fixed fluid passage is disposed toward the outer surface of the outer casing as a small outer small bell mouth, and the fixed fluid passage is disposed toward the movable piece in a direction of the movable piece.
  • the static piece having an adjusting surface for sealingly engaging the moving piece and being rotationally fitted by the surface contact to close the fluid passage or forming a flow passage of different radial dimensions and for the sealing ring
  • the ring surface is pressed against the sealing surface of the sealing fit; and/or the rotor comprises a sealing section for pressing the fastener into contact with the fastener to close the cavity of the valve stem and connected to the valve stem for rotation with the valve stem and
  • the end face shape of the adjustment section is matched with the shape of the matching port on the static piece, and the corner portion of the adjustment section is matched and/or is formed by pressing the sealing contact with the static piece and rotatingly engaging to form an adjustment section of the fluid passage of different radial sizes.
  • the corner portion between the adjusting section and the sealing section is provided with a diagonal strut structure for increasing the strength of the wall body, and the outer side wall surface of the moving piece is provided for engaging with the inner wall of the outer casing body to limit Circumferential stop member movable piece rotational range; employed between the movable plate and screwing the valve stem, plug, snap, socket, insert solid, at least one hot-melt welding, adhesively bonding.
  • At least one of the outer casing, the static piece, the moving piece, the fastener, the valve stem, and the driving mechanism is an integrally molded integrally formed piece, and the integral piece is a ceramic body, a glass body, a plastic body or a metal body.
  • the faucet of the invention improves the traditional valve core structure into a novel control mechanism, fixes the positioning static piece directly on the circulation passage in the inner cavity of the outer casing, limits the radial movement of the static piece, and uses the static piece to cover the circulation passage, and the static passage on the static piece
  • the fixed flow channel serves as a passage for the flow passage in the inner cavity of the outer casing; by attaching the gland on the static plate and attaching the gland fastener to the movable piece to form an axial limit on the movable piece and the static piece Acting, and axially and radially positioning the rotor through the valve stem, so that the rotor can only rotate circumferentially with the valve stem, forming a cooperative relationship between the active flow passage on the rotor and the fixed circulation passage on the stator.
  • the tightening and fitting of the fastener and the moving piece make the valve stem completely enclosed in the cavity enclosed by the fastener and the moving piece, and the valve stem does not make any contact with the water flow in the inner cavity of the outer casing, thereby effectively preventing Water flows from the valve stem to the fastener.
  • the whole structure has good sealing and leakproof performance. Since the dynamic sealing mating part does not involve easy-wearing parts, it can effectively improve the sealing and water leakage prevention performance of the entire faucet structure, thereby increasing the opening and closing times of the faucet and improving the service life of the faucet.
  • FIG. 1 is a schematic cross-sectional structural view of a water outlet type faucet according to a preferred embodiment of the present invention
  • Figure 2 is a schematic structural view showing a cross section of a water inlet regulating faucet according to a preferred embodiment of the present invention
  • Figure 3 is a schematic view showing the structure of a fastener according to a preferred embodiment of the present invention.
  • FIG. 4 is a schematic structural view of a flare end of a static lens according to a preferred embodiment of the present invention.
  • FIG. 5 is a schematic structural view of a mating end of a static piece according to a preferred embodiment of the present invention.
  • Figure 6 is a schematic view showing the structure of a rotor of a preferred embodiment of the present invention.
  • FIG. 1 is a cross-sectional structural view of a water-regulating faucet according to a preferred embodiment of the present invention
  • FIG. 2 is a schematic structural view of a cross-section of a water-intake faucet according to a preferred embodiment of the present invention
  • FIG. 3 is a fastener of a preferred embodiment of the present invention
  • 4 is a schematic structural view of a flared end of a preferred embodiment of the present invention
  • FIG. 5 is a schematic structural view of a mating end of a preferred embodiment of the present invention
  • FIG. 6 is a schematic view of a movable embodiment of the preferred embodiment of the present invention. Schematic.
  • the faucet of the embodiment includes an outer casing 1.
  • the outer casing 1 is provided with a water inlet connection nozzle 101, a water outlet 102, and a fitting opening 103.
  • the assembly opening 103 communicates with the inlet connection nozzle 101 and the outlet.
  • the assembly port 103 is provided with a control mechanism 2 for regulating the flow of water flowing from the inlet connection nozzle 101 to the water outlet 102.
  • the control mechanism 2 is provided at the bottom end of the inner cavity of the assembly opening 103.
  • the static sheet 201 for forming a fixed circulation passage on the circulation passage between the inlet connection nozzle 101 and the water outlet 102, and the surface-fitting sealing gland is formed on the static sheet 201 to form an active circulation passage and
  • the fixed flow passage of the static piece 201 is rotatably coupled to form a flow piece 202 of different radial size flow passages for controlling the flow rate of the water flow, and the surface-fitting sealing gland is disposed on the movable piece 202 for closing the assembly opening 103 and fixedly positioning in the axial direction.
  • the fasteners 203 of the piece 202 and the static piece 201 and the enclosed cavity of the fastener 203 and the moving piece 202 and the connecting piece 202 are used to control the rotation of the moving piece 202 to adjust and limit the radial movement of the moving piece 202.
  • the outer end of the valve stem 204 is provided for driving Rotating the valve stem 204 rotation driving mechanism 3.
  • the faucet of the invention improves the traditional valve core structure into a novel control mechanism 2, and fixes the positioning static piece 201 directly on the circulation passage in the inner cavity of the outer casing 1, restricting the radial movement of the static piece 201, and sealing with the static piece 201
  • the fixed circulation passage on the static piece 201 serves as a passage for the circulation passage in the inner cavity of the outer casing 1.
  • the pressure cover piece 202 is attached to the static piece 201 and the gland is fastened to the movable piece 202.
  • the member 203 is configured to form an axial limiting action on the movable piece 202 and the static piece 201, and axially and radially position the moving piece 202 through the valve rod 204, so that the moving piece 202 can only be wound around the valve rod 204.
  • the whole structure is simple, the adjustment stability is good, and the tight pressing fit between the fastener 203 and the moving piece 202 and between the moving piece 202 and the static piece 201 is combined to form a double-layer dynamic sealing fit;
  • the mating fit improves the tightness of the tight-fitting seal.
  • the tightening fit of the fastener 203 and the movable piece 202 is such that the valve stem 204 is completely enclosed in the cavity enclosed by the fastener 203 and the movable piece 202, and the valve stem 204 does not overlap with the inner cavity of the outer casing 1.
  • the water flow makes any contact to effectively prevent water flow from leaking between the valve stem 204 and the fastener 203.
  • the whole structure has good sealing and leakproof performance.
  • the peripheral portion of the valve stem 204 that projects outwardly of the fastener 203 is provided with a drive mechanism 3 for applying torque.
  • the drive mechanism 3 employs a cylindrical handle, an L-shaped handle or a T-shaped handle.
  • the drive mechanism 3 employs an electric actuator for electric drive or a pneumatic actuator for pneumatic drive.
  • the projecting end of the valve stem 204 extending into the inner cavity of the outer casing 1 is provided as a rod end connection for connecting the rotor 202.
  • the rod end connecting portion adopts one of a cylindrical structure, a tapered structure, a frustum-shaped structure, a spherical structure, a hemispherical structure, an elliptical structure, and a semi-elliptical structure.
  • the maximum radial dimension of the rod end connection is greater than the radial dimension of the through bore 2034 to prevent the assembled valve stem 204 from escaping from within the fastener 203.
  • the corner portions of the rod end connecting portion are all disposed at an arc angle to prevent the stress concentration damage caused by the joint connection with the movable piece 202.
  • the valve rod 204 is provided with a connection structure for assembling the drive mechanism 3 toward the outer end of the outer casing 1.
  • connection structure is a card slot, a threaded hole, a buckle, a hot-melt welding hole, a plug hole, and a plug connection. At least one of the slots.
  • the axial length of the valve stem 204 is 10 mm to 100 mm: the radial diameter of the valve stem 204 is 3 mm to 20 mm.
  • the static sheet 201 is sealed on the flow passage of the water outlet 102.
  • One end of the water outlet 102 forms a fixed circulation passage, and is adjusted by the rotation of the movable piece 202 to form different water inlet amounts, thereby precisely controlling the water flow rate of the water outlet 102.
  • the movable piece 202 has a function of buffering water pressure, and can be applied to a large water flow environment for reducing water pressure.
  • the static sheet 201 is capped on the flow passage of the inlet connection nozzle 101, as shown in FIG.
  • the movable piece 202 has the function of pressurized drainage, and can be applied to an environment with a small water flow rate for pressurized output of the water flow.
  • the inner wall surface of the outer casing 1 is provided with at least one ring of cantilevered steps 104 which are cantilevered radially inward.
  • the static sheet 201 is pressed over the surface of the loop of the cantilevered step 104.
  • a seal groove 4 and a seal ring 5 for forming a compression seal between the static piece 201 and the outer casing 1 are provided between the static piece 201 and the cantilevered step 104.
  • a circumferential positioning member 2011 for the stationary positioning of the static sheet 201 in the inner cavity of the outer casing 1 is further provided on the outer side wall of the static piece 201.
  • the inner cavity of the outer casing 1 is directly used as the assembly cavity of the static piece 201, and the static piece 201 is directly assembled in the inner cavity of the outer casing 1.
  • the static piece 201 is directly pressed over the surface of the ring of the cantilevered step 104 of the outer casing 1 and passes through Sealing groove 4 and sealing ring 5 to form a water stop and seal between the static piece 201 and the outer casing 1, the water flow intruding between the static piece 201 and the cantilevered step 104 to form a sealing water film, and the sealing water film extends to the sealing groove 4
  • the mating portion with the seal ring 5 is stopped and the seal cross section is formed by the seal ring 5, so that the water flow cannot continue to leak inward, thereby ensuring the seal between the seal piece 201 and the outer casing 1.
  • the static sheet 201 may adopt a structure that is separate from the outer casing 1.
  • the static sheet 201 may also adopt a unitary structure integrally formed with the outer casing 1. In this case, the sealing structure between the static sheet 201 and the outer casing 1 can be eliminated.
  • a support ring is embedded in the surface and/or the wall of the sealing ring 5 to form a support along the direction of the force of the sealing ring 5, thereby ensuring the sealing effect and the deformation resistance of the sealing ring 5, and effectively preventing the sealing ring. 5 Seal failure, can extend the service life of the seal 5 and support ability.
  • the corner portions of the static sheet 201 are all set to chamfered or curved corners to reduce mutual collision damage when the static sheets 201 are assembled or used, and at the same time, can form a guide for the assembly of the static sheets 201, which is convenient and quiet.
  • the sheet 201 is assembled.
  • a sealing ring 5 and/or a water stop is also provided between the sealing ring 6 and the inner side wall surface of the outer casing 1. It is used for fixing the positioning static piece 201, restricting the radial movement of the static piece 201, and forcing the static piece 201 to be centered by the elastic action of the sealing ring 5, and restricting the circumferential rotation of the static piece 201 by the surface frictional force of the sealing ring 5.
  • the static piece 201 is positioned by a positioning member to be placed at a specific position of the inner cavity of the outer casing 1.
  • the static sheet 201 is one of a cylinder, a cone, a frustum body, a polygonal body, and a hemisphere.
  • the inner wall surface of the outer casing 1 is provided with a cantilevered step 104 which is radially inwardly suspended.
  • the static sheet 201 is pressed over the surface of the loop of the cantilevered step 104 by a sealing ring 6 for sealing between the static sheet 201 and the outer casing 1 and buffering the upper pressing force.
  • the sealing ring 6 is clamped between the static piece 201 and the cantilevered step 104 and abuts against the side wall surface of the inner casing of the outer casing 1.
  • a circumferential positioning member 2011 for the stationary positioning of the static sheet 201 in the inner cavity of the outer casing 1 is further provided on the outer side wall of the static piece 201.
  • the inner cavity of the outer casing 1 is used as the assembly cavity of the static piece 201, and the static piece 201 is directly assembled in the inner cavity of the outer casing 1.
  • the static piece 201 is pressed over the annular surface of the cantilevered step 104 of the outer casing 1 by the sealing ring 6.
  • the sealing ring 6 is clamped between the static piece 201 and the cantilevered step 104 to ensure the structural stability of the sealing ring 6; and the sealing ring 6
  • the inner ring faces are subjected to water flow pressure, and are not easily eroded by the water flow pressure; as the water flow pressure increases and acts on the inner ring surface of the seal ring 6, the seal ring 6 is attached to the outer casing.
  • the whole structure is simple, the sealing property is good, it is not easily eroded by the influent water flow, and the service life is long.
  • the seal ring 6 includes a first end face for abutting against the end face of the stationary piece 201 and a second end face for abutting against the ring surface of the cantilevered step 104.
  • the first end surface and the second end surface form a set of opposing clamping faces.
  • the sealing ring 6 further includes an outer side surface for contacting the inner wall surface of the outer casing 1 and for contacting the influent fluid to withstand the water flow pressure and compressing the sealing ring 6 radially into the outer casing 1 by the water flow pressure.
  • the outer side surface and the inner ring surface form a set of unidirectional force receiving surfaces from the inside to the outside.
  • the static piece 201 is pressed onto the overhanging step 104 of the outer casing 1 by the sealing ring 6 to form a seal between the static piece 201 and the outer casing 1.
  • the sealing ring 6 is clamped between the static piece 201 and the cantilevered step 104.
  • the sealing ring 6 is fitted in three directions, only the inner ring surface is subjected to water flow and water pressure, and is not easily eroded by water flow;
  • the sealing ring 6 is attached to the inner wall surface of the outer casing 1 to be tighter, and the sealing effect is better, thereby improving the sealing performance between the static piece 201 and the outer casing 1 and ensuring the sealing performance.
  • the service life of the sealing ring 6. The whole structure is simple, the sealing property is good, it is not easily eroded by the influent water flow, and the service life is long.
  • the static sheet 201 may adopt a structure that is separate from the outer casing 1.
  • the outer side of the sealing ring 6 has a tapered side to ensure that the sealing ring 6 can be assembled in position to prevent assembly deflection and water leakage.
  • the inner annular surface of the sealing ring 6 has a tapered wall surface, so that the inner annular surface is subjected to a water flow force to force the outer side surface to be pressed against the inner wall side surface of the outer casing 1 to form a compression seal.
  • the first end surface extends radially to the periphery to form a radial top against the inner cavity side wall surface of the outer casing 1 and is spaced apart from the corresponding outer surface of the outer casing 1 to form an axial movement limit. The outer edge of the ring.
  • the contact surface between the first end surface and the static sheet 201 can be increased, the waterproof effect of the joint surface can be improved, and the downward pressure of the static sheet 201 can be uniformly transmitted downward, and the wall surface pressure is excessively large to crush the seal ring 6.
  • the sealing ring 6 has an annular outer edge, and a lower cavity is formed during assembly, which can form a cavity buffering force to prevent the upper structure during assembly from directly colliding with the inner wall of the outer casing 1; and at the same time, sufficient downward pressure can be formed Space, reduce the crushing force on the outer edge of the ring during assembly, and effectively avoid directly crushing the outer edge of the ring.
  • the inner ring surface of the sealing ring 6 is embedded with a support ring which is inherently used for supporting the sealing ring 6 to prevent the sealing ring 6 from being deformed from the inner cavity of the outer casing 1 after being deformed by pressure.
  • the support ring is radially embedded in the inner annular surface to form a radial and axial structural fault on the inner annular surface.
  • the structural fault can be used to buffer the bidirectional repeated impact caused by the water hammer effect, and can also be used for buffer sealing.
  • the sealing ring 6 and/or the support ring are made of a silicone ring or a rubber ring.
  • the cross-sectional shape of the support ring is one of an L shape, a T shape, and a U shape. Support rings of different structural forms can be selected as needed to meet the requirements of use.
  • the L-shaped support ring constitutes an axial restriction on the seal ring 6 and a one-way barrier limit on the inner ring surface.
  • the T-shaped support ring constitutes an axial restriction on the seal ring 6 and a two-way barrier limit on the inner ring surface.
  • the U-shaped support ring constitutes an axial restriction on the double portion of the seal ring 6 and an integral barrier limit on the inner ring surface.
  • the support ring includes an insert portion for fitting into the inner annular wall body and an attachment portion attached to the inner annular surface.
  • one end of the attaching portion facing the first end surface abuts against the end surface of the static piece 201.
  • a distance is left between the end of the attaching portion facing the first end surface and the static sheet 201.
  • the inner portion of the inner ring surface groove is embedded by the insert portion to form a restriction on the axial deformation of the seal ring 6 and an axial buffering action.
  • the inner annular surface is attached by the attaching portion to limit the radial deformation of the sealing ring 6 and to buffer the radial force.
  • a first end surface of the sealing ring 6 and/or a second end surface of the sealing ring 6 is provided with a sealing water stop ring for abutting the pressure by the compression deformation buffer during the top contact and sealing the water stop; and/or
  • the two end faces are provided with an embedded convex ring for being embedded in the cantilevered step 104 of the inner cavity of the outer casing 1 to form a sealing ring.
  • the cross-sectional shape of the embedded convex ring is at least one of a rectangle, a cone, a triangle, and a U. Different shape of the embedded convex ring can be selected according to the need, and the surface taper can facilitate the structure to be assembled.
  • the inner annulus of the sealing collar 6 is a vertical plane, a beveled surface or a concave curved surface. The vertical plane is adopted to form a vertical passage, which reduces the force of the passing water flow and the vertical plane, and reduces the influence of the water flow on the seal ring 6.
  • the inclined surface is inclined inward toward the water inlet direction, which can prevent the impact of the passing water flow on the inclined surface, and can form the water inlet flaring, which can increase the water inflow.
  • the inclined surface is inclined inward toward the water discharge direction, and the radially outward force is formed by the water flow impact force, so that the sealing ring 6 is tightly fitted to the inner side wall surface of the outer casing 1 to improve the sealing property; water flow and water pressure The larger the sealing ring 6 is, the closer it is, and the better the sealing.
  • the outer edge of the sealing ring 6 extends axially and is wrapped around the outer side wall of the static sheet 201 to form a sealing layer and a buffer layer sandwiched between the static sheet 201 and the inner side wall surface of the outer casing 1.
  • the support ring may be embedded on the surface of the inner annulus wall.
  • the support ring is wrapped in the wall of the sealing ring 6, and the sealing ring 6 forms a composite structure containing the support ring.
  • At least two layers are disposed between the valve stem 204 and the inner wall of the fastener 203 in a circumferential direction and are used for axial movement restriction and diameter of the valve stem 204.
  • the positioning collar 7 is adjusted to the movement to ensure that the valve stem 204 is rotated circumferentially to adjust stability.
  • the valve stem 204 is ensured by the positioning ring 7 that the rotating shaft does not shift, and the rotor 202 rotates with the valve stem 204 while ensuring that the rotating shaft of the rotor 202 is not displaced by the valve stem 204, thereby ensuring that the rotor 202 is
  • the rotation adjustment accuracy of the static piece 201 and the dynamic sealing stability of the position of the upper end surface and the lower end surface of the rotor piece 202 are ensured.
  • the positioning ring 7 is fastened in the first positioning groove formed by the outer surface of the valve stem 204 and/or the positioning ring 7 is fastened in the second positioning groove formed by the hole of the through hole 2034 of the fastener 203. .
  • the installation position and the number of the positioning ring 7 can be flexibly selected to ensure the relative stability between the valve stem 204 and the fastener 203, and the valve stem 204 only has a circumferential rotation motion to avoid the valve stem. 204 collides with the surrounding components.
  • the fastener 203 forms a triangular sealing fit with the valve stem 204 and the movable piece 202, thereby effectively providing the sealing property of the joint portion;
  • the rotational stability of the valve stem 204 effectively prevents the stem 204 from deflecting and deflecting.
  • the first positioning groove and/or the second positioning groove adopt at least one of a semicircular groove, a U-shaped groove, a V-shaped groove and a dovetail groove.
  • the first positioning slot and/or the second positioning slot adopt a narrow slot with an outer narrow inner width.
  • the fastener 203 includes a sealing cover 2031 for covering the fitting opening 103.
  • the lower portion of the sealing cover 2031 is provided with a sealing portion 2032 for sealingly contacting the movable piece 202 to close the valve rod 204 in a cavity formed by the fastener 203 and the movable piece 202 and fastened to the mounting opening 103.
  • the upper portion of the seal cover 2031 is provided with a biasing portion 2033 for biasing when the seal portion 2032 is connected to the fitting port 103 of the outer casing 1.
  • a through hole 2034 for sealing the valve stem 204 is axially opened in the middle of the fastener 203.
  • the valve rod 204 is assembled in the through hole 2034 of the fastener 203 and the fastening connection assembly of the sealing portion 2032 and the close contact sealing of the sealing cover 2031 with the end surface of the outer casing 1 are achieved by applying force to the urging portion 2033; The end surface of the sealing portion 2032 is pressed against the moving piece 202 to ensure the structural stability of the static piece 201 and the moving piece 202 in the inner cavity of the outer casing 1.
  • the valve rod 204 is connected to the inner cavity of the moving piece 202, and the valve stem 204 can be twisted.
  • the channel of the movable piece 202 and the static piece 201 is matched to realize water flow control, and the whole structure has few accessories and simple assembly.
  • the conventional valve core control mechanism is changed, and the movable piece 202 and the static piece 201 are directly abutted against the inner cavity of the outer casing 1 by the fastener 203, and the assembly opening of the outer casing 1 is sealed, and the inner casing of the outer casing 1 is directly disposed.
  • the movable piece 202 in the middle cooperates with the rotation of the static piece 201 to realize water flow in the inner cavity of the outer casing 1.
  • the entire fastener 203 structure adopts an injection-molded integral structure, and has a simple structure and good stability.
  • the outer wall surface of the urging portion 2033 is provided with at least one set of opposing force planes for urging; and/or the outer contour shape of the radial section of the urging portion 2033 is triangular, quadrangular, pentagon, One of the hexagons.
  • the outer shape structure of the urging portion 2033 can be selected as needed to facilitate the force assembly of the fastener 203, and is suitable for assembly of various parts.
  • the outer surface of the sealing portion 2032 is provided with a fastener, a fitting or an elastic pull member for fastening.
  • the sealing portion 2032 and the inner wall of the fitting opening of the outer casing 1 are heat-welded.
  • a water seal or an oil seal is provided between the sealing portion 2032 and the sealing cover 2031 for blocking the flow of water and preventing water flow between the fastener 203 and the outer casing 1.
  • the sealing portion of the sealing portion 2032, the water seal or the seal formed by the oil seal By providing a water seal or an oil seal between the sealing portion 2032 and the sealing cover 2031, or by using a structure between the sealing portion 2032 and the sealing cover 2031 to form a water seal or an oil seal, the sealing portion of the sealing portion 2032, the water seal or the seal formed by the oil seal.
  • the water sealing ring and the sealing seal between the sealing cover 2031 and the end surface of the outer casing 1 form a multi-layer seal, and the fastener 203 is statically fastened with the outer casing 1, so that the fastener 203 and the outer casing can be completely ensured.
  • the sealing of the joint of the body 1 has a sealing life of at least ten times higher than that of the existing spool valve.
  • the surface of the sealing portion 2032 is provided with an external thread, and the sealing portion 2032 is threadedly engaged with the outer casing 1 by an external thread, and the external thread is provided with a non-return groove for preventing the thread from being reversely released after the screwing.
  • the connection stability between the fastener 203 and the outer casing 1 is ensured, the structural stability of the multi-layer static seal is ensured, water leakage is avoided, fatigue damage of the sealing portion is avoided, and the service life of the sealing water valve is effectively extended.
  • the outer corners of the fasteners 203 are all set to arc angles to prevent collision damage or damage to the periphery.
  • the inner corners of the fasteners 203 are all set to chamfers or arc angles to prevent collision damage between each other during assembly; at the same time, forming a guiding structure during assembly, guiding the assembly into the assembly position, and improving assembly efficiency. Improve assembly accuracy.
  • the fastener 203 has an axial length of 5 mm to 20 mm.
  • the fastener 203 is fastened to the outer casing 1 , and the sealing mechanism 8 is disposed between the fastener 203 and the inner cavity of the outer casing 1 .
  • the sealing mechanism 8 employs at least one of a sealing ring, a sealing nip thread, a water stop strip, a water stop, a water seal, and an oil seal.
  • the sealing structure between the fastener 203 and the outer casing 1 can be selected as needed, and the complete sealing of the joint portion can be distinguished while ensuring the stability of the connection to each other, thereby effectively preventing the water flow in the inner cavity of the outer casing 1 from leaking outward.
  • the static sheet 201 is provided with at least one fixed fluid passage extending in the axial direction.
  • the fixed fluid passage is disposed in a direction toward the outside of the outer casing 1 as a small flared opening 2012.
  • the direction in which the fixed fluid passage faces the rotor 202 is set to a matching port 2013 that matches the size of the rotating sealing surface of the rotor 202.
  • the static sheet 201 has an adjustment surface for sealingly engaging the movable piece 202 and being rotationally fitted by surface contact to close the fluid passage or to form a flow passage of different radial dimensions and for sealing and sealing the surface with the sealing ring 6 Sealing surface.
  • the movable piece 202 rotates and the movable circulation passage on the movable piece 202 communicates with the fixed fluid passage of the static piece 201, thereby opening the circulation passage, the water flow can flow freely; when the movable piece 202 rotates, the rotary sealing surface blocks the fixed fluid passage When the circulation channel is closed.
  • the fixed fluid passage is disposed in a direction toward the outside of the outer casing 1 as a small flared opening 2012. The flow of water through the bell mouth 2012 achieves fluid concentration.
  • the fluid output can be increased: the bell mouth 2012 is not easy to retain and accumulate solid particles in the water body, and the flowing water flow can continuously flush the fixed fluid passage by opening the fluid passage, Prevents blockage of the fixed fluid passage and ensures the smoothness of the fixed fluid passage.
  • the direction in which the fixed fluid passage faces the rotor 202 is set to a mating port 2013 that matches the size of the rotating sealing surface on the rotor 202.
  • the rotation adjustment of the fluid passage between the static piece 201 and the moving piece 202 is facilitated, and the water flow opening and closing control and the water flow flow control are facilitated.
  • the adjusting surface is provided with a water stop ring groove or a water stop ring for adjusting the radial contact and the water stop when the surface is in contact with the moving piece 202; and/or a plurality of adjusting surfaces are provided for receiving
  • the fluid and the fluid contained therein form a liquid storage hole of the fluid sealing film on the rotating mating surface of the static piece 201 and the movable piece 202, and the liquid storage hole is disposed on the rotating track of the rotary sealing member of the moving piece 202.
  • a sealing water film can be formed between the adjusting surface and the moving piece 202 to achieve the sealing of the joint surface and reduce the friction of the joint surface, so that the rotation of the moving piece 202 is more smoothly adjusted, and the water ring groove or the water stop ring can be effectively used.
  • the barrier sealing water film extends outward. Thereby avoiding fluid leakage.
  • the liquid storage hole is used for storing the fluid, and the fluid in the liquid storage hole moves in the circumferential direction as the moving piece 202 rotates, thereby reducing the friction between the adjusting surface and the moving piece 202, so that the moving piece 202 rotates more smoothly. And forming a sealing water film to block the passage of the fluid, thereby improving the sealing of the joint surface.
  • the movable piece 202 is provided with a plurality of movable circulation channels and a plurality of sealing blocks for closing the fixed circulation passages on the static piece 201, and the movable circulation channels are arranged at intervals from the sealing block.
  • a fixed flow passage of the static piece 201 is simultaneously matched with the movable communication passage of the movable piece 202.
  • a sealing block of the movable piece 202 is simultaneously matched with a plurality of fixed circulation passages of the static piece 201.
  • the plurality of movable communication passages of the movable piece 202 communicate with the same water flow output port of the outer casing 1, or the plurality of movable communication passages of the movable piece 202 are respectively connected to different water flow output outlets of the outer casing 1.
  • the plurality of fixed flow passages of the static piece 201 communicate with the same water flow input port of the outer casing 1, or the plurality of fixed flow passages of the static piece 201 are respectively connected to different water flow input ports of the outer casing 1.
  • the moving piece 202 has an axial height of 2 mm to 30 mm; and a radial diameter of 5 mm to 30 mm.
  • the static piece 201 has an axial height of 2 mm to 30 mm; and a radial diameter of 5 mm to 30 mm.
  • the movable piece 202 includes a press-fit contact with the fastener 203 to close the cavity where the valve stem 204 is located and is connected with the valve stem 204 to follow
  • the sealing section 2021 of the valve stem 204 rotates and an adjustment section 2022 for pressing the sealing contact with the static sheet 201 and by rotationally engaging to form fluid passages of different radial dimensions.
  • the shape of the end face of the adjustment section 2022 matches the shape of the mating port 2013 on the static sheet 201.
  • a corner portion between the corner portion of the adjusting portion 2022 and/or the adjusting portion 2022 and the sealing portion 2021 is provided with a diagonal strut structure 2023 for increasing the strength of the wall body, and the outer wall surface of the moving piece 202 is provided for the inner cavity of the outer casing 1
  • the wall body cooperates to limit the limiting member 2024 of the circumferential rotation range of the movable piece 202.
  • At least one of a threaded connection, a plug, a snap, a socket, an insert, a hot melt welding, and a bonding is used between the movable piece 202 and the valve stem 204.
  • connection modes can be selected according to the needs and the size of the sealing water valve structure to ensure the stability of the connection between the moving piece 202 and the valve stem 204, and ensure that the valve flow 204 can accurately adjust and control the flow of water.
  • the connection position between the valve stem 204 and the rotor piece 202 is further provided with a locking structure for preventing loosening of each other.
  • the threaded connection between the valve stem 204 and the rotor 202 is prevented from coming loose by opening the anti-reverse groove.
  • the valve stem 204 and the movable piece 202 are connected by a plug connection, and the plug is prevented from being loosened by a buckle or a check protrusion.
  • valve rod 204 and the movable piece 202 are connected by a snap connection, and the snap-in is prevented from being loosened by the check buckle.
  • the valve rod 204 and the movable piece 202 are connected by a socket, and the socket is prevented from being loosened by a buckle or a check protrusion.
  • the valve rod 204 and the rotor piece 202 are connected by inserting and fixing, and the inserting body is prevented from being loosened by an interference fit.
  • the valve stem 204 and the rotor 202 are thermally welded or bonded, and are hot-melt welded or bonded through the non-reversing projection, the anti-reverse buckle or the anti-reverse thread.
  • At least one of the outer casing 1, the static piece 201, the movable piece 202, the fastener 203, the valve stem 204, and the drive mechanism 3 is integrally molded by integral injection molding, and the integral piece is a ceramic body, a glass body, Plastic body or metal body.
  • the vitreous body is injection molded with high-strength tempered heat-resistant glass.
  • the internal structure of the outer casing can be seen, the appearance of the shell is bleached, and it can be corrosion-proof; there is no problem of aging of the plastic shell structure and fluid contamination caused by the incoming fluid, environmental protection and health. ,Safety.
  • the plastic body can be made of high-strength plastic, and the structure is light and cheap.
  • a faucet is provided by sequentially assembling a sealing ring 6, a static piece 201, a moving piece 202, and a fastener 203 sheathed with a valve stem in the fitting opening 103 of the inner cavity of the outer casing 1.
  • the static piece 201, the moving piece 202 and the valve stem 204 are assembled in position.
  • the static piece 201 is fixedly positioned in the inner cavity of the outer casing 1 by the circumferential positioning member 2011, and the circumferential movement and radial movement of the static piece 201 are restricted by the circumferential positioning member 2011.
  • the movable piece 202 is assembled in the limiting groove of the inner cavity of the outer casing 1 through the limiting member 2024.
  • the valve stem 204 is inserted or threaded into the connecting groove of the rotor 202.
  • the assembly is pressed by the fastener 203 to limit the axial position of the rotor 202 and the stator 201, and the radial movement of the rotor 202 is restricted by the valve stem 204.
  • the static piece 201 is supported by the sealing ring 6, and the elastic support of the sealing ring 6 is slightly changed according to the direction in which the lower surface of the moving piece 202 is disposed according to the pressing portion 203 of the upper fastening and the pressing surface of the fastener 203.
  • the small change of the automatic adapting piece 202 is applied and the state of the upper surface of the static piece 201 is coordinated and corrected in time, so that the fastener 203 and the moving piece 202 are always kept in close contact with each other and the static piece 201 and the moving piece 202 are maintained.
  • the surface fit and tight fit are always maintained, thereby ensuring the dynamic sealing effect of the upper and lower surfaces of the movable piece 202.
  • Attached to the lower surface of the fastener 203 and the static sheet 201 is always closely attached to the surface of the movable piece 202, so that the static piece 201 and the moving piece 202 and between the moving piece 202 and the fastener 203 are not manufactured.
  • Accuracy, assembly accuracy, wear and other problems lead to the dynamic sealing of the upper and lower surfaces of the rotor 202 to separate the sealing surface to ensure the stability and sealing of the dynamic seal to extend the service life of the dynamic seal.
  • the drive mechanism 3 is then assembled to form a complete faucet.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Sliding Valves (AREA)
  • Multiple-Way Valves (AREA)

Abstract

La présente invention concerne un robinet comprenant une enveloppe (1). Une ouverture d'assemblage (103) est reliée à un canal d'écoulement entre une ouverture de tuyau de raccordement d'entrée d'eau (101) et une sortie d'eau (102), et l'ouverture d'assemblage (103) est pourvue d'un mécanisme de commande (2) utilisé pour ajuster et commander l'écoulement d'eau de l'ouverture de tuyau de raccordement d'entrée d'eau (101) à la sortie d'eau (102). Le mécanisme de commande (2) comprend une feuille fixe (201), une feuille mobile (202), une pièce de fixation (203) et une tige de soupape (204), la feuille fixe (201) étant disposée au niveau de l'extrémité inférieure d'une cavité interne de l'ouverture d'assemblage (103) et recouvrant le canal d'écoulement entre l'ouverture de tuyau de raccordement d'entrée d'eau (101) et la sortie d'eau (102) pour former un canal d'écoulement fixe ; la feuille mobile (202) presse et recouvre la feuille fixe (201) de manière à former une fixation étanche face à face, est utilisée pour former un canal d'écoulement mobile et s'adapte par rotation au canal d'écoulement fixe de la feuille fixe (201) de manière à former des canaux d'écoulement qui sont des tailles radiales différentes pour commander la quantité d'écoulement d'eau ; la pièce de fixation (203) presse et recouvre la feuille mobile (202) de manière à former une fixation étanche face à face et est utilisée pour sceller l'ouverture d'assemblage (203) et fixer et positionner la feuille mobile (202) et la feuille fixe (201) dans la direction axiale ; et la tige de soupape (204) est située dans une cavité définie par la pièce de fixation (203) et la feuille mobile (202), est reliée à la feuille mobile (202) et est utilisée pour commander le réglage de rotation de la feuille mobile (202) et limiter le mouvement radial de la feuille mobile (202), une extrémité s'étendant vers l'extérieur de la tige de soupape (204) étant pourvue d'un mécanisme d'entraînement (3) utilisé pour entraîner la tige de soupape (204) en rotation.
PCT/CN2018/000371 2017-10-26 2018-10-26 Robinet WO2019080364A1 (fr)

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CN110307070A (zh) * 2019-06-27 2019-10-08 三一重型装备有限公司 气体换向装置和内燃机
CN110925436A (zh) * 2019-12-10 2020-03-27 浙江科博电器有限公司 可手动调节废水流量的废水比电磁阀

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CN107559445A (zh) * 2017-10-26 2018-01-09 新化县新园电子陶瓷有限公司 用于密封水阀的阀杆连体结构及密封水阀
CN107575615B (zh) * 2017-10-26 2024-05-28 新化县新园电子陶瓷有限公司 水龙头
CN112283377A (zh) * 2020-11-06 2021-01-29 新化县新园电子陶瓷有限公司 一种组合装配式水阀

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CN110307070A (zh) * 2019-06-27 2019-10-08 三一重型装备有限公司 气体换向装置和内燃机
CN110925436A (zh) * 2019-12-10 2020-03-27 浙江科博电器有限公司 可手动调节废水流量的废水比电磁阀

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