CN219221356U

CN219221356U - Angle valve with non-return function for switch

Info

Publication number: CN219221356U
Application number: CN202320031162.6U
Authority: CN
Inventors: 刘晓鹏; 吴广; 沈茂林; 刘恒良
Original assignee: Guangdong Langjing Intelligent Sanitary Ware Co ltd
Current assignee: Guangdong Langjing Intelligent Sanitary Ware Co ltd
Priority date: 2023-01-06
Filing date: 2023-01-06
Publication date: 2023-06-20
Anticipated expiration: 2033-01-06

Abstract

The utility model relates to the technical field of angle valves, in particular to an angle valve with a non-return function on a switch, which comprises a valve body, a knob, a communicating piece and a non-return valve on the switch; a water inlet flow passage, a water outlet flow passage and a water passing cavity are arranged in the valve body; the water passing cavity is communicated with the water outlet flow passage, and the water inlet flow passage is communicated with the water supply pipeline; the knob covers the top of the valve body, is in threaded connection with the water through cavity and is arranged in a vertically moving way; the communicating piece is positioned in the water passing cavity, the periphery of the switch check valve is tightly attached to the inner wall surface of the water inlet flow channel, and the knob moves up and down to drive the communicating piece to prop against the switch check valve, so that the water passing cavity is communicated or sealed with the water inlet flow channel; the switch check valve comprises a check assembly, when the water supply pipeline is stopped, the check assembly is used for blocking the water inlet flow passage, the check assembly is used for preventing water from entering the water supply pipeline from the water outlet flow passage through the water inlet flow passage, and the problem that negative pressure is formed in the pipeline when water is suddenly stopped to enable the water to flow backwards to pollute the water in the pipeline is solved.

Description

Angle valve with non-return function for switch

Technical Field

The utility model relates to the technical field of angle valves, in particular to an angle valve with a switch and a non-return function.

Background

Currently in the laying of tap water lines, angle valves are usually provided between the water pipe and the tap or in connection with the corresponding water household appliances or sanitary wares for opening or closing the inflow of water source. Most of the prior angle valve products adopt ceramic valve cores or rotary valve cores for discharging water from opposite holes to control water opening and closing, so that the cost is high, the angle valve has no non-return function, if a toilet or other appliance pipeline used by a customer has no non-return function, when water is suddenly stopped, negative pressure is possibly formed in the pipeline at the moment to enable water to flow backwards, and the toilet water or other appliance water possibly flows backwards into a water supply pipeline to pollute the water in the pipeline, so that the design of the angle valve with the non-return function is urgently needed.

Disclosure of Invention

The utility model aims to overcome the defects, and aims to provide an angle valve with a non-return function, which solves the problem that when water is suddenly stopped, negative pressure is formed in a pipeline to cause water to flow backwards so as to pollute water in a water supply pipeline.

To achieve the purpose, the utility model adopts the following technical scheme:

an angle valve with a non-return function on a switch comprises a valve body, a knob, a communicating piece and a non-return valve on the switch; a water inlet flow passage, a water outlet flow passage and a water passing cavity are arranged in the valve body; the water passing cavity is communicated with the water outlet flow passage, and the water inlet flow passage is communicated with a water supply pipeline;

the knob covers the top of the valve body, is in threaded connection with the water communication cavity and is arranged in a vertically moving way;

the communication piece is positioned in the water communication cavity, one end of the communication piece is fixedly connected with the knob, and the other end of the communication piece faces the switch check valve;

the switch check valve is arranged in the water inlet flow passage, the periphery of the switch check valve is tightly attached to the inner wall surface of the water inlet flow passage, and the up-and-down movement of the knob drives the communicating piece to prop against the switch check valve, so that the water through cavity is communicated with or sealed with the water inlet flow passage;

the switch check valve comprises a check assembly, when the water supply pipeline is stopped, the check assembly is used for blocking the water inlet flow passage, and the check assembly is used for preventing water from entering the water supply pipeline from the water outlet flow passage through the water inlet flow passage.

Further, the water inlet device further comprises a positioning piece, wherein a clamping groove is formed in the inner wall surface of the water inlet flow channel, the positioning piece is located in the clamping groove, and the positioning piece is used for positioning the switch check valve in the water inlet flow channel.

In one embodiment, the switch check valve further comprises a switch assembly;

the switch assembly comprises a first guiding subsection, a first movable piece and a first elastic piece;

the non-return assembly comprises a second guiding subsection, a second movable piece and a second elastic piece;

the first guide subsection and the second guide subsection are integrally formed first guide seats;

the first guide seat is in a hollowed-out structure and is arranged in the water inlet flow passage;

one end face of the first movable piece is connected with the upper end face of the first guide seat through the first elastic piece, the other end face faces the communicating piece, one end face of the second movable piece is connected with the lower end face of the first guide seat through the second elastic piece, the other end face faces the water supply pipeline, and the expansion and contraction of the first elastic piece/the second elastic piece can drive the first movable piece/the second movable piece to move up and down;

when the first elastic piece is in a reset state, the first movable piece seals the water inlet flow channel, the water inlet flow channel is not communicated with the water communication cavity, and when the communicating piece abuts against the first movable piece and moves downwards to compress the first elastic piece, the water inlet flow channel is communicated with the water communication cavity; when the second elastic piece is in a reset state, the second movable piece seals the water inlet flow passage, the water inlet flow passage is not communicated with the water communication cavity, and when the second elastic piece is in a compression state, the water inlet flow passage is communicated with the water communication cavity.

Further, the first guide seat is provided with a first guide column, and the first guide column penetrates through the first guide seat and is integrally formed on the central axis of the first guide seat;

the first movable piece and the second movable piece are respectively provided with a sliding rod, the first movable piece and the second movable piece are respectively positioned at two ends of the first guide column, the two sliding rods are respectively arranged in the hollow structure of the first guide column in a penetrating way and can slide up and down, and the first elastic piece and the second elastic piece are respectively sleeved on the periphery of the first guide column;

the switch check valve further comprises two shells, wherein the shells are of a hollow structure, through holes are formed in the end faces of the shells, the two shells are respectively sleeved on the first movable piece and the second movable piece and are in threaded connection with the periphery of the first guide seat, the end parts of the first movable piece and the second movable piece are respectively matched with the through holes, the two shells are symmetrically arranged up and down, and the peripheries of the two shells are tightly attached to the inner wall surface of the water inlet flow channel;

the inner wall surface of the shell is provided with a plurality of ribs, and the periphery of the first movable piece/the second movable piece is attached to the ribs and can be arranged in a vertically movable mode along the length direction of the ribs.

In another embodiment, the switch check valve comprises two check assemblies, the two check assemblies are arranged in the water inlet flow channel in an up-down symmetrical mode, and the check assemblies comprise a second guide seat, a second movable piece, a second elastic piece, a shell and a base;

the second guide seat is of a hollowed-out structure;

the lower end face of the second movable piece is connected with the upper end face of the second guide seat through the second elastic piece, and the second movable piece can be driven to move up and down by the expansion and the contraction of the second elastic piece;

the middle part of the base is in a hollow structure, the base covers the lower ends of the second guide seats, and the bottoms of the two bases are abutted;

the shell is of a hollow structure, the end face of the shell is provided with a through hole, the shell is sleeved on the periphery of the second movable piece, the second elastic piece and the second guide seat and is clamped with the base, the periphery of the shell is tightly attached to the inner wall surface of the water inlet flow channel, the upper end face of the second movable piece faces the through hole and is matched with the through hole, when the second elastic piece is in a reset state, the second movable piece seals the through hole,

the upper end face of the second movable piece located above faces the communicating piece, and the upper end face of the second movable piece located below faces the water supply pipeline.

Preferably, the second guide seat is provided with a second guide column, the second guide column is positioned above the second guide seat and integrally formed on the central axis of the second guide seat, and the second guide column is of a hollow structure; the lower end face of the second movable piece is provided with a sliding rod, the sliding rod penetrates through the second guide column and is arranged in a vertically sliding mode, and the second elastic piece is sleeved on the periphery of the second guide column;

the inner wall surface of shell is equipped with a plurality of bead, the periphery of second movable part with a plurality of the bead laminating is followed the length direction of bead can reciprocate and set up.

The bottom terminal surface of base is equipped with a plurality of location bosss along circumference interval, two be equipped with the constant head tank between the location boss, the constant head tank with location boss phase-match, two when the base looks butt, one the location boss of base is located another the constant head tank of base.

Preferably, the outer circumferences of the shell, the first movable piece and the second movable piece are respectively provided with a sealing ring, and the inner wall of the through hole is funnel-shaped.

Further, the communicating piece is provided with a connecting section, a water passing section and a push rod, and the connecting section and the push rod are integrally formed at two ends of the water passing section;

the connecting section is fixedly connected with the knob, the water passage section is of a hollow structure, a plurality of water guide grooves penetrating through the bottom are formed in the water passage section along the circumferential direction, and the water outlet flow passage is positioned on one side of the water passage section;

one end of the ejector rod is connected to the bottom of the water passage section, the other end of the ejector rod faces the first movable piece/the second movable piece, and when the other end of the ejector rod abuts against the first movable piece/the second movable piece, the water passage cavity is communicated with the water inlet flow passage.

Preferably, the water-through device further comprises a filter screen, wherein the filter screen is sleeved on the periphery of the water-through section.

Further, the knob is sequentially provided with a handheld part, a sealing section and an external thread section from top to bottom;

the handheld part is positioned above the valve body and is attached to the upper end face of the valve body, the sealing section is in sealing connection with the inner wall face of the valve body, the external thread section is in threaded connection with the inner wall face of the valve body, and the water through cavity is communicated with the water inlet flow channel;

when the sealing section is separated from the valve body, the water communication cavity is not communicated with the water inlet flow passage.

The technical scheme provided by the utility model can comprise the following beneficial effects:

1. the top of the valve body is provided with a knob which can move up and down through threads, one end of a communication piece positioned in the water passing cavity is fixedly connected with the knob, the other end of the communication piece faces to the switch check valve, the switch check valve is arranged in the water inlet interface pipe and is tightly attached to the inner wall surface of the water inlet interface pipe, when the knob is rotated to move downwards in the water passing cavity, the communication piece is driven to move towards the switch check valve, the water passing cavity is communicated with the water inlet interface pipe, the switch check valve comprises a check assembly, and when a water supply pipeline suddenly stops water, the check assembly can prevent water from entering the water supply pipeline from a water outlet flow passage through the water inlet flow passage, and water source pollution in the water supply pipeline can be avoided; when the rotary knob moves upwards, the communicating piece moves upwards, the switch check valve resets to enable the water communication cavity to be closed with the water inlet flow channel, water cannot be discharged from the water outlet flow channel, and therefore the switch check valve not only plays a role in switching water, but also can realize a function of stopping and preventing siphonage.

2. Through setting up two shells and directly putting into the water inlet channel after the switch subassembly and the non return subassembly are assembled into an organic whole for switch non return valve simple structure, it is more convenient to assemble, improves the production efficiency of the angle valve of switch area non return function, and conveniently dismantles maintenance or direct change when switch non return valve breaks down or damages.

3. The base of adopting two non-return subassemblies looks butt and constitutes switch check valve from top to bottom symmetrically and place in the runner of intaking, the up end of the second movable part that is located the top is towards the communicating piece, the up end of the second movable part that is located the below is towards the water supply pipe, and non-return subassemblies assemble an organic wholely, two non-return subassemblies that assemble into an organic whole form the switch check valve, and simple structure, the spare is few, and convenient assembling improves production efficiency, reduction in production cost, can directly change when the non-return subassembly of angle valve damages, and further, non-return subassembly can be singly as ooff valve or check valve in the application of angle valve use, can freely select and match according to the application of angle valve, and application range is wide.

4. The filter screen is sleeved on the periphery of the water passing section of the communicating piece, so that the angle valve has a filtering function, and the connecting section of the communicating piece is in threaded connection with the knob, so that the angle valve is convenient to disassemble, assemble and clean.

Drawings

Fig. 1 is a schematic structural view of an embodiment of the present utility model.

Fig. 2 is an exploded view of one embodiment of the present utility model.

Fig. 3 is an exploded view of a switching check valve according to an embodiment of the present utility model.

Fig. 4 is a cross-sectional view of one embodiment of the present utility model.

Fig. 5 is a cross-sectional view of one embodiment of the present utility model.

Fig. 6 is a cross-sectional view of one embodiment of the present utility model.

Fig. 7 is a front view a and a schematic structural view B of a communication member according to an embodiment of the present utility model.

Fig. 8 is a front view of a knob according to an embodiment of the utility model.

Fig. 9 is a schematic cross-sectional structure of a valve body according to an embodiment of the present utility model.

Fig. 10 is a front view a and a schematic view B of the housing of one embodiment of the present utility model.

Fig. 11 is an exploded view of a non-return assembly according to another embodiment of the present utility model.

Fig. 12 is a schematic structural view of a non-return assembly according to another embodiment of the present utility model.

Fig. 13 is a cross-sectional view of another embodiment of the present utility model.

Wherein: valve body 1, non-return subassembly 01, second guide holder 011, second guide post 012, switch unit 02, intake runner 11, draw-in groove 111, outlet runner 12, water cavity 13, knob 2, hand-held part 21, seal section 22, external screw thread section 23, communicating member 3, connecting section 31, water passage section 32, water guiding groove 321, ejector pin 33, switch non-return valve 4, first guide holder 41, first guide post 411, slide bar 40, first movable member 42, second movable member 43, first elastic member 44, second elastic member 45, shell 46, through hole 461, bead 462, base 47, positioning boss 471, positioning groove 472, filter screen 5, positioning member 6, decorative cover 7, seal ring 8.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

In the description of the present utility model, it should be understood that the terms "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be configured and operated in a particular orientation, and thus should not be construed as limiting the utility model. Furthermore, features defining "first", "second" may include one or more such features, either explicitly or implicitly, for distinguishing between the descriptive features, and not sequentially, and not lightly.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

The following further describes the technical solution of the present utility model by means of specific embodiments with reference to fig. 1 to 10.

An angle valve with a non-return function is disclosed as shown in figure 2, and comprises a valve body 1, a knob 2, a communicating piece 3 and a non-return valve 4;

a water inlet flow passage 11, a water outlet flow passage 12 and a water passing cavity 13 are arranged in the valve body 1; the water passing cavity 13 is communicated with the water outlet flow passage 12, and the water inlet flow passage 11 is communicated with a water supply pipeline;

the knob 2 is covered on the top of the valve body 1, is in threaded connection with the water communication cavity 13 and is arranged in an up-and-down moving way;

the communicating piece 3 is positioned in the water communication cavity 13, one end of the communicating piece 3 is fixedly connected with the knob 2, and the other end of the communicating piece 3 faces the switch check valve 4;

the switch check valve 4 is installed in the water inlet flow channel 11, the periphery of the switch check valve 4 is tightly attached to the inner wall surface of the water inlet flow channel 11, and the up-and-down movement of the knob 2 drives the communicating piece 3 to prop against the switch check valve 4, so that the water through cavity 13 is communicated with or sealed with the water inlet flow channel 11;

the switch check valve 4 comprises a check assembly 01, when the water supply pipeline is stopped, the check assembly 01 seals the water inlet flow passage 11, and the check assembly 01 is used for preventing water from entering the water supply pipeline from the water outlet flow passage 12 through the water inlet flow passage 11.

Most of the prior angle valve products adopt ceramic valve cores or valve cores for rotary counter-hole water outlet to control water opening and closing, and have no check function, if a closestool or other appliance pipeline used by a customer has no check function, negative pressure possibly forms in the pipeline at the moment to enable water to flow backwards, and the closestool water or other appliance water possibly flows backwards in a water supply pipeline through a water outlet flow channel 12, so that water in the pipeline is polluted, therefore, the utility model provides the angle valve with the check function, firstly, a knob 2 capable of moving up and down through threads is arranged at the top of a valve body 1, then one end of a communicating piece 3 positioned in a water through cavity 13 is fixedly connected with the knob 2, the other end of the communicating piece faces the switch check valve 4, the switch check valve 4 is arranged in the water inlet flow channel 11 and is tightly attached to the inner wall surface of the water inlet flow channel 11, and the communicating piece 3 is driven to move towards the switch check valve 4 when the knob 2 is rotated to move downwards in the water through cavity 13, so that the water through cavity 13 is communicated with the water inlet flow channel 11, and the switch check valve 4 comprises a water supply pipeline 01, and when the water inlet channel 11 is stopped from flowing into the water supply pipeline 11 suddenly can be prevented from flowing out of the water supply pipeline 01; when the rotary knob 2 moves upwards, the communicating piece 3 moves upwards, the on-off check valve 4 enables the water passing cavity 13 to be closed with the water inlet flow channel 11, water cannot be discharged from the water outlet flow channel 12, and therefore the on-off check valve 4 not only plays a role in switching water, but also can realize an anti-siphon effect.

It should be noted that, the number of the water outlet channels 12 may be one or more according to actual use requirements, and be respectively communicated with the water passing cavity 13, as shown in fig. 1, and two water outlet channels 12 are provided.

In an alternative embodiment, as shown in fig. 2 and 9, the device further includes a positioning member 6, the inner wall surface of the water inlet channel 11 is provided with a clamping groove 111, the positioning member 6 is located in the clamping groove 111, and the positioning member 6 is used for positioning the switch check valve 4 in the water inlet channel 11.

The clamping groove 111 is formed in the inner wall surface of the water inlet flow channel 11, the positioning piece 6 is clamped in the clamping groove 111, the on-off check valve 4 is fixed in the water inlet flow channel 11, the structure is simple, the assembly is convenient, and preferably, the positioning piece 6 adopts an open clamping ring.

In one embodiment, as shown in fig. 3, the switch check valve 4 further comprises a switch assembly 02;

the switch assembly 02 comprises a first guiding subsection, a first movable member 42 and a first elastic member 44; the non-return assembly 01 comprises a second guiding subsection, a second movable part 43 and a second elastic part 45; the first guiding subsection and the second guiding subsection are integrally formed first guiding seat 41;

the first guide seat 41 is in a hollow structure, and is installed in the water inlet flow channel 11;

one end surface of the first movable member 42 is connected with the upper end surface of the first guide seat 41 through the first elastic member 44, the other end surface faces the communication member 3, one end surface of the second movable member 43 is connected with the lower end surface of the first guide seat 41 through the second elastic member 45, the other end surface faces the water supply pipeline, and the expansion and contraction of the first elastic member 44/the second elastic member 45 can drive the first movable member 42/the second movable member 43 to move up and down;

when the first elastic member 44 is in a reset state, the first movable member 42 seals the water inlet flow channel 11, the water inlet flow channel 11 is not communicated with the water communication cavity 13, and when the communicating member 3 abuts against the first movable member 42 and moves downwards to compress the first elastic member 44, the water inlet flow channel 11 is communicated with the water communication cavity 13; when the second elastic member 45 is in the reset state, the second movable member 43 blocks the water inlet channel 11, the water inlet channel 11 is not communicated with the water communication cavity 13, and when the second elastic member 45 is in the compression state, the water inlet channel 11 is communicated with the water communication cavity 13.

To illustrate further, the switch assembly 02 of the switch check valve 4 comprises a first guiding subsection, a first movable member 42, a first elastic member 44; the non-return assembly 01 comprises a second guiding subsection, a second movable member 43 and a second elastic member 45; the first guiding part and the second guiding part are integrally formed into a first guiding seat 41, the first guiding seat is installed in the water inlet channel 11, a first movable part 42 connected through a first elastic part 44 is installed at the upper end of the first guiding seat 41, please read the fig. 4-6 (the curve with arrow in the drawing represents the direction of water flow), when the first elastic part 44 is in a reset state, the first movable part 42 seals the water inlet channel 11, and the water inlet channel 11 is not communicated with the water through cavity 13 as shown in fig. 5; as shown in fig. 4, when the communicating member 3 abuts against the first movable member 42 and moves downward to compress the first elastic member 44, the water inlet channel 11 is communicated with the water passing cavity 13, so as to realize the water boiling of the switch assembly 02, whereas the water is closed, a second movable member 43 connected through a second elastic member 45 is installed at the lower end of the first guide seat 41, and as shown in fig. 6, when the second elastic member 45 is in a reset state, the second movable member 43 seals the water inlet channel 11, and the water inlet channel 11 is not communicated with the water passing cavity 13; in fig. 4, when the second elastic element 45 is in a compressed state, the water inlet channel 11 is communicated with the water passing cavity 13, that is, when the non-return assembly 01 is used for water passing, water in the water supply pipeline generates pressure on the second movable element 43 so that the second elastic element 45 is compressed to enable water to pass through, when the water supply pipeline is suddenly stopped, the second elastic element 45 resets so that the second movable element 43 is used for blocking the water inlet channel 11, and the water supply pipeline is not communicated with the water passing cavity 13 to realize non-return assembly 01 for preventing siphoning, so that the non-return assembly is simple in structure assembly, few in parts, low in cost and convenient to use, and can realize the non-return function without other manual operations.

Further, the first guide seat 41 is provided with a first guide column 411, and the first guide column 411 is inserted into the first guide seat 41 and integrally formed on the central axis of the first guide seat 41;

the first movable member 42 and the second movable member 43 are respectively provided with a sliding rod 40, the first movable member 42 and the second movable member 43 are respectively positioned at two ends of the first guide column 411, the two sliding rods 40 are respectively arranged in the hollow structure of the first guide column 411 in a penetrating manner and can slide up and down, and the first elastic member 44 and the second elastic member 45 are respectively sleeved on the periphery of the first guide column 411;

the switch check valve 4 further comprises two shells 46, wherein the shells 46 are hollow, through holes 461 are formed in the end faces of the shells 46, the two shells 46 are respectively sleeved on the first movable piece 42 and the second movable piece 43 and are in threaded connection with the outer periphery of the first guide seat 41, the end parts of the first movable piece 42 and the second movable piece 43 are respectively matched with the through holes 461, the two shells 46 are vertically symmetrically arranged, and the outer peripheries of the two shells 46 are tightly attached to the inner wall surface of the water inlet flow channel 11;

the inner wall surface of the housing 46 is provided with a plurality of ribs 462, and the outer circumference of the first movable member 42/the second movable member 43 is attached to the plurality of ribs 462 and is disposed to be movable up and down along the length direction of the ribs 462.

To further explain, first guide posts 411 are first inserted through the central axis of the first guide seat 41, the first movable member 42 and the second movable member 43 are respectively provided with sliding rods 40, the first movable member 42 and the second movable member 43 are respectively sleeved at two ends of the first guide posts 411, the two sliding rods 40 are respectively inserted into the hollow structure of the first guide posts 411 and can slide up and down, and the first elastic member 44 and the second elastic member 45 are respectively positioned at the periphery of the first guide posts 411, so that the telescopic movement of the first movable member 42/the second movable member 43 through the first elastic member 44/the second elastic member 45 is more stable and the movement direction is more accurate, thereby playing a guiding role and avoiding water leakage caused by deflection.

Secondly, be equipped with shell 46 respectively in switch module 02 and the periphery of non return subassembly 01, two shell 46 overlaps respectively and locates first movable part 42 with second movable part 43 and with the periphery threaded connection of first guide holder 41, two the periphery of shell 46 with the inner wall face of intake runner 11 closely laminates, shell 46 is hollow structure and terminal surface is equipped with through-hole 461, first movable part 42 with the tip of second movable part 43 respectively with through-hole 461 matches, then first movable part 42 and second movable part 43 and through-hole 461 cooperate and realize the intercommunication and the shutoff of intake runner 11 and water cavity 13, can directly put into intake runner 11 after switch module 02 and non return subassembly 01 assemble an organic whole through setting up two shells 46 for switch non return valve 4 simple structure, the assembly is more convenient, improves the production efficiency of the angle valve of switch area non return function, and convenient dismantlement maintenance or direct change when switch non return valve 4 breaks down or breaks down.

Further, as shown in fig. 10, a plurality of ribs 462 are provided on the inner wall surface of the housing 46, and the outer periphery of the first movable member 42/the second movable member 43 is attached to the plurality of ribs 462 and is disposed to be movable up and down along the length direction of the ribs 462, so that the stability of the vertical movement and the accuracy of the movement direction of the first movable member 42/the second movable member 43 are further improved, and the first movable member 42/the second movable member 43 can be precisely attached to the through hole 461 of the housing 46.

Preferably, the first movable member 42 is identical in structure to the second movable member 43.

In another embodiment, as shown in fig. 11 to 13, the switch check valve 4 includes two check assemblies 01, the two check assemblies 01 are symmetrically disposed up and down in the water inlet channel 11, and the check assemblies 01 include a second guide seat 011, a second movable member 43, a second elastic member 45, a housing 46 and a base 47;

the second guide seat 011 is in a hollow structure;

the lower end surface of the second movable member 43 is connected with the upper end surface of the second guide seat 011 through the second elastic member 45, and the second elastic member 45 stretches to drive the second movable member 43 to move up and down;

the middle part of the base 47 is in a hollow structure, the base 47 covers the lower ends of the second guide seats 011, and the bottoms of the two bases 47 are abutted;

the outer shell 46 is of a hollow structure, the end face of the outer shell 46 is provided with a through hole 461, the outer shell 46 is sleeved on the outer circumferences of the second movable piece 43, the second elastic piece 45 and the second guide seat 011 and is clamped with the base 47, the outer circumference of the outer shell 46 is tightly attached to the inner wall surface of the water inlet flow channel 11, the upper end face of the second movable piece 43 faces the through hole 461 and is matched with the through hole 461, when the second elastic piece 45 is in a reset state, the second movable piece 43 seals the through hole 461,

the upper end surface of the second movable member 43 located above faces the communicating member 3, and the upper end surface of the second movable member 43 located below faces the water supply pipe.

Specifically, in this embodiment, the non-return assembly 01 includes a second guide seat 011, a second movable member 43, a second elastic member 45, a housing 46 and a base 47, where the second guide seat 011 and the base 47 are hollow structures, the second guide seat 011 and the second movable member 43 are connected by the second elastic member 45, the housing 46 is sleeved on the outer periphery of the second movable member 43, the second elastic member 45 and the second guide seat 011, the through hole 461 of the housing is matched with the upper end surface of the second movable member 43, the second movable member 43 seals the through hole 461 when the second elastic member 45 is in a reset state, and the housing and the base 47 are clamped together, so that the non-return assembly 01 is assembled into a whole, the bases 47 of the two non-return assemblies 01 are abutted and vertically symmetrically form a switch non-return valve 4 to be placed in the water inlet flow channel 11, the upper end surface of the second movable member 43 located above faces the communication member 3, the upper end surface of the second movable part 43 positioned below faces the water supply pipeline, when water exists in the water supply flow passage, the water in the water supply pipeline generates pressure on the second movable part 43 positioned below to enable the second elastic part 45 to compress and enable water to pass through, when the water supply pipeline suddenly stops water, the second elastic part 45 resets to enable the second movable part 43 to block the water inlet flow passage 11, the water supply pipeline is not communicated with the water passing cavity 13 to realize anti-siphon, when the communicating part 3 abuts against the second movable part 43 and moves downwards to compress the second elastic part 45, the water inlet flow passage 11 is communicated with the water passing cavity 13 to realize boiled water, otherwise, water is closed, so that the two non-return assemblies 01 which have the same structure and are assembled into a whole are adopted to form a switch non-return valve, the structural design is simple, parts are reduced, the assembly is convenient, the production efficiency is improved, the production cost is reduced, when the non-return assembly 01 of the angle valve is damaged, the non-return assembly 01 can be directly replaced, furthermore, the non-return assembly 01 can be independently used as a switch valve or a non-return valve in the application of the angle valve, can be freely selected and matched according to the application of the angle valve, and has wide application range.

Preferably, the second guide seat 011 is provided with a second guide column 012, the second guide column 012 is located above the second guide seat 011 and integrally formed on the central axis of the second guide seat 011, and the second guide column 012 is of a hollow structure; a sliding rod 40 is arranged on the lower end surface of the second movable piece 43, the sliding rod 40 penetrates through the second guide column 012 and is arranged in a vertically sliding manner, and the second elastic piece 45 is sleeved on the periphery of the second guide column 012;

the inner wall surface of the housing 46 is provided with a plurality of ribs 462, and the outer periphery of the second movable member 43 is attached to the plurality of ribs 462 and is disposed to be movable up and down along the length direction of the ribs 462.

A plurality of positioning bosses 471 are circumferentially spaced from the bottom end surface of the base 47, a positioning groove 472 is formed between two positioning bosses 471, the positioning groove 472 is matched with the positioning bosses 471, and when the two bases 47 are abutted, the positioning boss 471 of one base 47 is positioned in the positioning groove 472 of the other base 47.

Specifically, first, a hollow second guide column 012 is arranged above the second guide seat 011, a sliding rod 40 is arranged on the lower end surface of the second movable member 43, the second elastic member 45 is sleeved on the periphery of the second guide column 012, and the sliding rod 40 can be arranged in the second guide column 012 in a penetrating manner through the expansion and contraction of the second elastic member 45 and slide up and down, so that the second movable member 43 is more stable and the moving direction is more accurate when moving up and down relative to the second guide seat 011, thereby playing a guiding role and avoiding the occurrence of deflection and water leakage. Secondly, be equipped with a plurality of bead 462 at the internal face of shell 46, the periphery of second movable part 43 with a plurality of bead 462 laminating and follow the length direction of bead 462 can reciprocate and set up, further improves the stability and the accuracy of direction of movement that second movable part 43 reciprocated, can be accurate laminate with the through-hole 461 of shell 46.

In addition, a plurality of positioning bosses 471 are arranged at intervals along the circumferential direction on the bottom end face of the base 47, a positioning groove 472 is formed between every two positioning bosses 471, the positioning groove 472 is matched with the positioning boss 471, when the two bases 47 are abutted, one positioning boss 471 of the base 47 is positioned in the positioning groove 472 of the other base 47, so that when the two non-return components are placed in the water inlet flow channel 11, the structure is more stable, and the positioning can be better.

In an alternative embodiment, the outer circumferences of the housing 46, the first movable member 42 and the second movable member 43 are respectively provided with a sealing ring 8, and the inner wall of the through hole 461 is funnel-shaped.

Further, the sealing ring 8 is mounted on the outer periphery of the housing 46, so that the switch check valve 4 is in sealing connection with the water inlet flow channel 11, no water can enter and exit from the space between the switch check valve 4 and the wall of the water inlet flow channel 11, the sealing ring 8 is mounted on the outer periphery of the first movable member 42 and the outer periphery of the second movable member 43, the inner wall of the through hole 461 is funnel-shaped, and when the first movable member 42/the second movable member 43 moves towards the through hole 461, the guiding function is achieved, and the sealing ring 8 of the first movable member 42/the second movable member 43 can be tightly attached to the inner wall of the through hole 461, so that the sealing effect is better.

In an alternative embodiment, as shown in fig. 7, the communicating member 3 is provided with a connecting section 31, a water passing section 32 and a push rod 33, and the connecting section 31 and the push rod 33 are integrally formed at two ends of the water passing section 32;

the connecting section 31 is fixedly connected with the knob 2, the water passage section 32 is of a hollow structure, a plurality of water guide grooves 321 penetrating through the bottom are formed in the water passage section 32 along the circumferential direction, and the water outlet flow passage 12 is positioned on one side of the water passage section 32;

one end of the ejector rod 33 is connected to the bottom of the water passage section 32, the other end faces the first movable member 42/the second movable member 43, and when the other end of the ejector rod 33 abuts against the first movable member 42/the second movable member 43, the water passage cavity 13 is communicated with the water inlet flow channel 11.

Specifically, the connecting section 31, the water-passing section 32 and the ejector rod 33 of the communicating member 3 are integrally formed from top to bottom, the connecting section 31 is fixedly connected with the knob 2, and the ejector rod faces the first movable member and can be arranged in the through hole 461 in a penetrating manner, so that water can be turned on and off. In addition, the water passage 32 is of a hollow structure, the water passage 32 is circumferentially provided with a plurality of water guide grooves 321 penetrating through the bottom, and the water outlet flow passage 12 is positioned on one side of the water passage 32, so that water entering the water passage cavity 1 from the water inlet flow passage 11 can smoothly enter the water outlet flow passage 12 through the water passage 32 and flow out, and blocking cannot occur.

In an alternative embodiment, the filter screen 5 is sleeved on the periphery of the water through section 32, so that water entering the water outlet flow channel 12 can be filtered, and a plurality of layers of filter screens can be selected as the filter screen 5.

In an alternative embodiment, as shown in fig. 8, the knob 2 is provided with a holding part 21, a sealing section 22 and an external thread section 23 from top to bottom in sequence;

the hand-held part 21 is positioned above the valve body 1 and is attached to the upper end surface of the valve body 1, the sealing section 22 is in sealing connection with the inner wall surface of the valve body 1, the external thread section 23 is in threaded connection with the inner wall surface of the valve body 1, and the water passing cavity 13 is communicated with the water inlet flow channel 11;

when the sealing section 22 is separated from the valve body 1, the water passing cavity 13 is not communicated with the water inlet flow channel 11.

Understandably, the sealing section 22 and the external thread section 23 of the knob 2 can be screwed into the valve body 1 through the hand-held part 21 of the knob 2 and are in threaded connection with the valve body 1, the ejector rod 33 of the communicating piece 3 abuts against the first movable piece 42 of the switch check valve 4, the water passing cavity 13 is communicated with the water inlet flow channel 11, the sealing section 22 is separated from the valve body 1 through the threaded separation of the external thread section 23 and the valve body 1 by rotating the hand-held part 21, the knob 2 can be taken out from the valve body 1, the water passing cavity 13 is not communicated with the water inlet flow channel 11, and the operation is convenient and the water can be accurately switched.

Preferably, a sealing ring is mounted on the outer periphery of the sealing section 22.

Preferably, the outer circumference of the connecting section 31 is screwed with the inner wall surface of the knob 2.

Illustratively, the connecting section 31 is provided with external threads and is in threaded connection with the inner wall surface of the knob 2, so that after the knob 2 is separated from the valve body 1, the communicating piece 3 can be detached, and the communicating piece 3 and the filter screen 5 are conveniently cleaned and detached.

Preferably, the water inlet runner 11 is arranged on the decorative cover 7 in a penetrating way, the mounting surface of the decorative cover 7 faces towards the wall, so that the angle valve with the non-return function is more attractive after being mounted.

The technical principle of the present utility model is described above in connection with the specific embodiments. The description is made for the purpose of illustrating the general principles of the utility model and should not be taken in any way as limiting the scope of the utility model. Other embodiments of the utility model will be apparent to those skilled in the art from consideration of this specification without undue burden.

Claims

1. An angle valve of switch area non-return function, its characterized in that: comprises a valve body, a knob, a communicating piece and a switch check valve;

a water inlet flow passage, a water outlet flow passage and a water passing cavity are arranged in the valve body; the water passing cavity is communicated with the water outlet flow passage, and the water inlet flow passage is communicated with a water supply pipeline;

2. The angle valve with a non-return function according to claim 1, wherein: the water inlet flow channel is characterized by further comprising a positioning piece, wherein a clamping groove is formed in the inner wall surface of the water inlet flow channel, the positioning piece is positioned in the clamping groove, and the positioning piece is used for positioning the switch check valve in the water inlet flow channel.

3. The angle valve with a non-return function according to claim 1, wherein: the switch check valve further comprises a switch assembly;

4. A switch check angle valve according to claim 3, wherein: the first guide seat is provided with a first guide column, and the first guide column penetrates through the first guide seat and is integrally formed on the central axis of the first guide seat;

5. The angle valve with a non-return function according to claim 1, wherein: the switch check valve comprises two check assemblies which are arranged in the water inlet flow channel in an up-down symmetrical mode, and each check assembly comprises a second guide seat, a second movable piece, a second elastic piece, a shell and a base;

the second guide seat is of a hollowed-out structure;

6. The angle valve with a non-return function according to claim 5, wherein: the second guide seat is provided with a second guide column, the second guide column is positioned above the second guide seat and integrally formed on the central axis of the second guide seat, and the second guide column is of a hollow structure; the lower end face of the second movable piece is provided with a sliding rod, the sliding rod penetrates through the second guide column and is arranged in a vertically sliding mode, and the second elastic piece is sleeved on the periphery of the second guide column;

the inner wall surface of the shell is provided with a plurality of ribs, and the periphery of the second movable piece is bonded with the ribs and can move up and down along the length direction of the ribs;

7. The angle valve with a non-return function according to claim 4, wherein: sealing rings are respectively arranged on the peripheries of the shell, the first movable piece and the second movable piece, and the inner wall of the through hole is funnel-shaped.

8. The angle valve with a non-return function according to claim 4, wherein: the connecting piece is provided with a connecting section, a water passing section and a push rod, and the connecting section and the push rod are integrally formed at two ends of the water passing section;

one end of the ejector rod is connected to the bottom of the water through section, the other end of the ejector rod faces the first movable piece, and when the other end of the ejector rod abuts against the first movable piece, the water through cavity is communicated with the water inlet flow channel.

9. The angle valve with a non-return function according to claim 8, wherein: the water-through device further comprises a filter screen, wherein the filter screen is sleeved on the periphery of the water-through section.

10. The angle valve with a non-return function according to claim 1, wherein: the knob is sequentially provided with a handheld part, a sealing section and an external thread section from top to bottom;