阅读说明：本技术 一种水力切换阀及具有其的水龙头 (Hydraulic switching valve and faucet with same ) 是由 叶佳祥 吴成峰 蔡增熠 陈志柄 于 2020-03-05 设计创作，主要内容包括：本发明公开了一种水力切换阀及具有其的水龙头,包括：本体,具有内腔、进水通道、第一出水通道和第二出水通道；第一活动件,设于本体中并能在打开第一出水通道的打开位置和关闭第一出水通道的关闭位置之间活动；第二活动件,设于本体中并能在限位位置和让位位置之间活动,在限位位置时,第二活动件对第一活动件进行限位,在让位位置时,第二活动件对第一活动件解除限位；当第二出水通道止水时,第二活动件在本体中受到的水压力平衡并处于限位位置以使得第一活动件被限制在打开位置；第二出水通道通水时,第二活动件在水压的作用下由限位位置活动至让位位置。本发明能通过水流的压力变化实现自动切换,从而避免人为切换的繁琐,用户体验更好。(The invention discloses a hydraulic switching valve and a faucet with the same, comprising: the body is provided with an inner cavity, a water inlet channel, a first water outlet channel and a second water outlet channel; the first movable piece is arranged in the body and can move between an opening position for opening the first water outlet channel and a closing position for closing the first water outlet channel; the second moving part is arranged in the body and can move between a limiting position and a yielding position, the second moving part limits the first moving part at the limiting position, and the second moving part relieves the limiting position of the first moving part at the yielding position; when the second water outlet channel stops water, the water pressure of the second moving part in the body is balanced and is positioned at a limiting position so that the first moving part is limited at an opening position; when the second water outlet channel is communicated with water, the second movable part moves from the limiting position to the yielding position under the action of water pressure. The invention can realize automatic switching through the pressure change of the water flow, thereby avoiding the complexity of manual switching and having better user experience.)

1. A hydraulic switching valve, comprising:

the body is provided with an inner cavity, and a water inlet channel, a first water outlet channel and a second water outlet channel which are respectively communicated with the inner cavity;

the first movable piece is movably arranged in the body and can move between an opening position for opening the first water outlet channel and a closing position for closing the first water outlet channel;

the second moving part is movably arranged in the body and can move between a limiting position and a yielding position, when the second moving part is at the limiting position, the second moving part limits the first moving part so as to prevent the first moving part from moving from the opening position to the closing position, and when the second moving part is at the yielding position, the second moving part relieves the limiting of the first moving part;

when the second water outlet channel stops water, the water pressure of the second movable piece in the body is balanced and the second movable piece is located at the limiting position, so that the first movable piece is limited at the opening position; when the second water outlet channel is used for water flowing, the second moving part moves to the yielding position from the limiting position under the action of water pressure, and then the first moving part can move to the closing position from the opening position.

2. The hydraulic switching valve of claim 1, wherein the body further includes a first elastic member acting on the first movable member, and when the second movable member is located at the abdicating position, the first movable member moves from the open position to the closed position against the elastic force of the first elastic member under the action of the water pressure of the inlet passage; when the water inlet channel is cut off, the first movable piece moves from the closing position to the opening position under the action of the first elastic piece.

3. The hydraulic switching valve according to claim 1 or 2, further comprising a pressure relief structure, wherein the pressure relief structure at least partially releases water in the inner cavity of the body after the water inlet channel is cut off, so that the first movable member can move from the closed position to the open position.

4. The hydraulic switching valve according to claim 1, wherein a second elastic member acting on the second movable member is further disposed in the body, and when the second water outlet passage stops water, the second movable member moves from the receding position to the limiting position under the action of the second elastic member.

5. The hydraulic switching valve according to claim 1, wherein the first movable member is provided with a hollow slide cylinder, one end of the slide cylinder forms an open end, the other end of the slide cylinder forms a closed end, the open end is communicated with the inner cavity, a slide sleeve with two open ends is formed in the inner cavity of the body, the slide sleeve divides the inner cavity into a first water passing cavity communicated with the first water outlet channel and a second water passing cavity communicated with the second water outlet channel, the first water passing cavity is formed between the outer wall of the slide sleeve and the inner wall of the body, the second water passing cavity is formed in the inner cavity of the slide sleeve, the slide cylinder is slidably sleeved in the slide sleeve along the axial direction of the slide sleeve, the water flow of the water inlet channel flows to the second water passing cavity after passing through the inner cavity of the slide cylinder, and the slide cylinder cuts off the communication between the second water passing cavity and the water inlet channel when in the open position, and the sliding cylinder opens the communication between the second water passing cavity and the water inlet channel when in the closed position.

6. The hydraulic switching valve according to claim 5, wherein a through hole is formed in a side wall of the sliding cylinder, when the sliding cylinder is in the open position, a portion of the side wall of the sliding cylinder, where the through hole is formed, is attached to an inner wall of the sliding sleeve to close the through hole, when the sliding cylinder is in the closed position, the through hole communicates an inner cavity of the sliding cylinder and an inner cavity of the sliding sleeve, and water in the water inlet channel flows into the second water passing cavity through the through hole in the sliding cylinder after flowing into the sliding cylinder.

7. The hydraulic switching valve according to claim 5 or 6, wherein the first water passing cavity is communicated with the first water outlet channel through a first flow passing hole, the first movable member is provided with a first blocking portion, the first blocking portion is arranged at a closed end of the sliding cylinder, the first blocking portion is far away from the first flow passing hole when the first movable member is in the open position, and the first blocking portion closes the first flow passing hole when the first movable member is in the closed position;

the sliding cylinder is provided with one end of the first blocking portion and located outside the sliding sleeve, the first movable element is located at the opening position, the blocking portion is in limit fit with the end wall of the sliding sleeve, and when the first movable element is located at the closing position, an overflowing gap is formed between the first blocking portion and the hole edge of the first overflowing hole.

8. The hydraulic switching valve according to claim 5 or 6, wherein the second water passing cavity is communicated with the second water outlet channel through a second flow passing hole, a second blocking portion is arranged on the second movable member, the second blocking portion is far away from the second flow passing hole when the second movable member is located at the abdicating position, and the second blocking portion closes the second flow passing hole when the second movable member is located at the limiting position.

9. The hydraulic switching valve according to claim 8, wherein the second overflowing hole is opened along a radial direction of the sliding sleeve to communicate with an inner cavity of the sliding sleeve in the radial direction of the sliding sleeve, and the second movable member slides along an axial direction of the second overflowing hole and is perpendicular to a sliding direction of the sliding cylinder; the second moving part is provided with a bolt, a lock hole is formed in the side wall of the sliding barrel, the second moving part is located in the limiting position, the bolt is inserted into the lock hole to limit the first moving part, the second moving part is located in the yielding position, and the bolt exits from the lock hole to limit the first moving part.

10. A faucet comprising a faucet body, characterized by further comprising the hydraulic switching valve of any one of claims 1 to 9 attached to the faucet body.

Technical Field

The invention relates to a hydraulic switching valve and a faucet with the same.

Background

The switching valve is externally connected to a faucet water outlet nozzle and provided with two water outlets, one water outlet can be connected with a spray gun, the other water outlet is used for water outlet of a common faucet, and water flow can be guided to one of the two water outlets in a switching mode through the switching valve, so that a user can switch to use spray gun water or faucet water according to needs. The original faucet is refitted into the faucet capable of being connected with the spray gun by additionally installing the switching valve, so that convenience is brought to users, the faucet does not need to be replaced in the refitting process, and the refitting process is very simple, quick and low in cost, so that the switching valve is more and more widely used, and particularly, the switching valve is used in the field of kitchens and bathrooms.

However, most of the switching valves on the market at present need to be provided with a manual switching switch, and switching needs to be performed manually, so that the switching operation is complicated.

Disclosure of Invention

The invention aims to solve the problems and provides a hydraulic switching valve which can realize automatic switching through the pressure change of water flow, so that the complexity of manual switching is avoided, the use is more convenient, and the user experience is better.

To achieve the above object, according to one aspect of the present invention, the present invention provides the following technical solutions:

a hydraulic switching valve comprising:

the body is provided with an inner cavity, and a water inlet channel, a first water outlet channel and a second water outlet channel which are respectively communicated with the inner cavity;

the first movable piece is movably arranged in the body and can move between an opening position for opening the first water outlet channel and a closing position for closing the first water outlet channel;

the second moving part is movably arranged in the body and can move between a limiting position and a yielding position, when the second moving part is at the limiting position, the second moving part limits the first moving part so as to prevent the first moving part from moving from the opening position to the closing position, and when the second moving part is at the yielding position, the second moving part relieves the limiting of the first moving part;

when the second water outlet channel stops water, the water pressure of the second movable piece in the body is balanced and the second movable piece is located at the limiting position, so that the first movable piece is limited at the opening position; when the second water outlet channel is used for water flowing, the second moving part moves to the yielding position from the limiting position under the action of water pressure, and then the first moving part can move to the closing position from the opening position.

According to the hydraulic switching valve, after the second water outlet channel is filled with water, the water pressure balance of the second movable part in the body is broken, so that the second movable part moves to the abdicating position, the first movable part can close the first water outlet channel, the purpose of automatic switching through the pressure change of water flow is achieved, the complexity of manual switching is avoided, the use is more convenient, and the user experience is better.

As a further improvement of the above scheme, a first elastic element acting on the first movable element is further arranged in the body, and when the second movable element is located at the abdicating position, the first movable element overcomes the elastic force of the first elastic element under the action of the water inlet pressure of the water inlet channel and moves from the opening position to the closing position; when the water inlet channel is cut off, the first movable piece moves from the closing position to the opening position under the action of the first elastic piece. In this scheme, first moving part is at the inlet water pressure of inhalant canal and first elastic component's elastic force effect down at opening position and closing position between reciprocating motion, simple structure, the function is reliable.

As a further improvement of the above scheme, the water inlet device further comprises a pressure relief structure, and the pressure relief structure at least partially vents water in the inner cavity of the body after the water inlet channel is cut off, so that the first movable member can move from the closed position to the open position. The pressure of the inner cavity of the body is partially relieved by the pressure relief structure, so that the first movable part can smoothly move from the closed position to the open position, and the function is more reliable.

As a further improvement of the above scheme, a second elastic element acting on the second movable element is further arranged in the body, and when the second water outlet channel stops water, the second movable element moves to the limiting position from the yielding position under the action of the second elastic element. The second movable piece is reset by the second elastic piece, and the structure is simple.

As a further improvement of the above scheme, the first moving part is provided with a hollow sliding cylinder, one end of the sliding cylinder forms an open end, the other end of the sliding cylinder forms a closed end, the open end is communicated with the inner cavity, a sliding sleeve with openings at two ends is formed in the inner cavity of the body, the sliding sleeve divides the inner cavity into a first water passing cavity communicated with the first water outlet channel and a second water passing cavity communicated with the second water outlet channel, the first water passing cavity is formed between the outer wall of the sliding sleeve and the inner wall of the body, the second water passing cavity is formed in the inner cavity of the sliding sleeve, the sliding cylinder is sleeved in the sliding sleeve along the axial sliding direction of the sliding sleeve, the water flow of the water inlet channel flows to the second water passing cavity after passing through the inner cavity of the sliding cylinder, and the communication between the second water passing cavity and the water inlet channel is cut off when the sliding cylinder is at the open position, and the sliding cylinder opens the communication between the second water passing cavity and the water inlet channel when in the closed position. This scheme for the overall structure of diverter valve is simple, compact.

As a further improvement of the above scheme, a through hole is formed in the side wall of the sliding barrel, the sliding barrel is in the open position, the part of the through hole in the side wall of the sliding barrel is attached to the inner wall of the sliding sleeve to close the through hole, the sliding barrel is in the closed position, the through hole is communicated with the inner cavity of the sliding barrel and the inner cavity of the sliding sleeve, and water in the water inlet channel flows into the sliding barrel and then flows into the second water passing cavity through the through hole in the sliding barrel. This scheme further makes the overall structure of diverter valve simple, compact to, because the slide cartridge is in during the open position, the through-hole is the closed condition, thereby makes first water cavity and second water cavity relatively independent of crossing, can avoid this moment inhalant canal's rivers hydraulic fluctuation to cause the influence to the second moving part, and the function is more reliable and more stable.

As a further improvement of the above scheme, the first water passing cavity is communicated with the first water outlet channel through a first flow passing hole, the first moving member is provided with a first blocking portion, the first blocking portion is arranged at the closed end of the sliding cylinder, the first moving member is located at the opening position, the first blocking portion is far away from the first flow passing hole, and the first moving member is located at the closing position, the first blocking portion closes the first flow passing hole.

As a further improvement of the above scheme, one end of the sliding barrel, which is provided with the first blocking portion, is located outside the sliding sleeve, when the first movable member is located at the opening position, the blocking portion is in limit fit with an end wall of the sliding sleeve, and when the first movable member is located at the closing position, an overflowing gap is formed between the first blocking portion and a hole edge of the first overflowing hole. Through setting up the clearance of overflowing for the clearance of overflowing can regard as the pressure release structure, when the water inlet channel cuts off the water supply, can unload partly through overflowing the inner chamber pressure of clearance with the body, so that first moving part can be smoothly by closed position activity to open position, the function is more reliable.

As a further improvement of the above scheme, the second water passing cavity is communicated with the second water outlet channel through a second flow passing hole, a second plugging portion is arranged on the second moving part, the second moving part is located when the water yielding position is set, the second plugging portion is far away from the second flow passing hole, and the second moving part is located when the water yielding position is set, the second plugging portion is closed to the second flow passing hole.

As a further improvement of the above scheme, the second overflowing hole is opened along the radial direction of the sliding sleeve to communicate with the inner cavity of the sliding sleeve in the radial direction of the sliding sleeve, and the second movable member slides along the axial direction of the second overflowing hole and is perpendicular to the sliding direction of the sliding cylinder; the second moving part is provided with a bolt, a lock hole is formed in the side wall of the sliding barrel, the second moving part is located in the limiting position, the bolt is inserted into the lock hole to limit the first moving part, the second moving part is located in the yielding position, and the bolt exits from the lock hole to limit the first moving part. According to the scheme, the second moving part is limited and abduced to the first moving part through the insertion matching or the phase separation matching of the bolt and the lock hole, and the structure is simple.

As a further improvement of the above-mentioned solution, the first moving part and the second moving part are both slidably disposed in the main body, and a first guide portion that guides the first moving part is provided in the main body, and a second guide portion that guides the second moving part is provided in the main body. Through setting up first guide part and second guide part for the activity of first moving part and second moving part in the body is more smooth and easy.

As a further improvement of the above scheme, a water inlet joint forming the water inlet channel, a first water outlet joint forming the first water outlet channel and a second water outlet joint forming the second water outlet channel are arranged on the body, the water inlet joint and the first water outlet joint are coaxially arranged, the second water outlet joint is arranged on the side wall of the body between the water inlet joint and the first water outlet joint, and the axis of the second water outlet joint and the axis of the water inlet joint/the axis of the first water outlet joint are arranged at an angle. This scheme for the diverter valve compact structure.

According to another aspect of the present invention, there is also provided a faucet including a faucet body, and the hydraulic power switching valve of any one of the above, attached to the faucet body.

Drawings

In order that the advantages of the invention will be readily understood, a more particular description of the invention briefly described above will be rendered by reference to specific embodiments that are illustrated in the appended drawings. Understanding that these drawings depict only typical embodiments of the invention and are not therefore to be considered to be limiting of its scope, the invention will be described and explained with additional specificity and detail through the use of the accompanying drawings. In the drawings:

FIG. 1 is a schematic perspective assembly view of a hydraulic switching valve according to a preferred embodiment of the present invention;

FIG. 2 is a perspective cross-sectional view of a hydraulic switching valve in accordance with a preferred embodiment of the present invention (the first moveable member is in an open position and the second moveable member is in a limit position);

FIG. 3 is a perspective cross-sectional view of the hydraulic switch valve according to a preferred embodiment of the present invention (the first moveable member is in a closed position and the second moveable member is in an out-of-range position);

fig. 4 is a schematic exploded perspective view of a hydraulic power switching valve according to a preferred embodiment of the present invention.

The reference signs are:

10-a body; 11-a water inlet channel; 11 a-water inlet joint; 12-a first water outlet channel; 12 a-a first water outlet joint; 13-a second water outlet channel; 13 a-a second water outlet joint; 14-a sliding sleeve; 15-a first water passing cavity; 16-a second water passing cavity; 17-a first overflow aperture; 18-a second overflowing hole;

20-a first movable member; 21-a slide cylinder; 211-a through hole; 212-a keyhole; 22-a first blocking portion;

30-a second movable member; 31-a latch; 32-a second occlusion; 33-a guide shaft;

40-a first elastic member; 41-a first elastic member mounting portion; 411-connecting ribs;

50-a second elastic member; 51-a second elastomeric mount;

61-a first mount; 62-second fixing frame.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention clearer and clearer, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

In the following discussion, details are given to provide a more thorough understanding of the present invention. One skilled in the relevant art will recognize, however, that the invention may be practiced without one or more of the specific details. In certain instances, well known features have not been described in detail in order to avoid obscuring the invention. It is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", and the like are used herein for purposes of illustration only and are not to be construed as limiting.

Ordinal words such as "first" and "second" are referred to herein merely as labels, and do not have any other meaning, such as a particular order, etc. Also, for example, the term "first component" does not itself imply the presence of "second component", and the term "second component" does not itself imply the presence of "first component".

Referring to fig. 1 to 4, a hydraulic switching valve according to an embodiment of the present invention includes a body 10, a first movable member 20, and a second movable member 30.

The body 10 is provided with an inner cavity, a water inlet channel 11, a first water outlet channel 12 and a second water outlet channel 13, wherein the first water outlet channel 12 and the second water outlet channel 13 are respectively communicated with the inner cavity of the body 10. Specifically, in this embodiment, the body 10 is provided with a water inlet joint 11a, a first water outlet joint 12a and a second water outlet joint 13a, the inner cavity of the water inlet joint 11a forms the water inlet channel 11, the inner cavity of the first water outlet joint 12a forms the first water outlet channel 12, and the inner cavity of the second water outlet joint 13a forms the second water outlet channel 13.

In this embodiment, preferably, the water inlet joint 11a and the first water outlet joint 12a are coaxially arranged, the second water outlet joint 13a is disposed on the sidewall of the body 10 between the water inlet joint 11a and the first water outlet joint 12a, and the axis of the second water outlet joint 13a and the axis of the water inlet joint 11 a/the first water outlet joint 12a are arranged at an angle, which may be designed as required, in this embodiment, the axis of the second water outlet joint 13a and the axis of the water inlet joint 11 a/the first water outlet joint 12a are arranged at 90 °, that is, the whole switching valve is a right-angle three-way valve.

The first movable member 20 is movably disposed in the body 10 and is movable between an open position for opening the first outlet passage 12 and a closed position for closing the first outlet passage 12.

The second movable member 30 is movably disposed in the body 10 and can move between a limiting position and a yielding position, when the limiting position is reached, the second movable member 30 limits the first movable member 20 to prevent the first movable member 20 from moving from the open position to the closed position, and when the yielding position is reached, the second movable member 30 releases the limiting of the first movable member 20.

When the second water outlet channel 13 stops water, the water pressure of the second movable part 30 in the body 10 is balanced and is in a limit position so that the first movable part 20 is limited in the open position; when the second water outlet channel 13 is filled with water, the second movable member 30 moves from the limiting position to the yielding position under the action of water pressure, so that the first movable member 20 can move from the opening position to the closing position.

According to the hydraulic switching valve disclosed by the invention, after the second water outlet channel 13 is filled with water, the water pressure balance of the second movable part 30 in the body 10 is broken, so that the second movable part 30 moves to the abdicating position under the action of the water pressure, and the first movable part 20 can close the first water outlet channel 12, and the purpose of automatically switching a water channel through the pressure change of water flow is realized, namely after the second water outlet channel 13 is filled with water, the first water outlet channel 12 can be automatically closed, the trouble of artificial switching is avoided, the use is more convenient, and the user experience is better.

In this embodiment, the body 10 further includes a first elastic element 40 acting on the first movable element 20, and when the second movable element 30 is at the yielding position, the first movable element 20 moves from the open position to the closed position against the elastic force of the first elastic element 40 under the action of the water pressure of the water inlet passage 11. When the water inlet channel 11 is cut off, the first movable element 20 moves from the closed position to the open position under the action of the first elastic element 40. The first movable member 20 reciprocates between the open position and the closed position under the water pressure of the inlet passage 11 and the elastic force of the first elastic member 40, and has a simple structure and reliable functions. The first elastic member 40 is preferably a compression spring which is elastically pressed between the first movable member 20 and a first elastic member mounting portion 41 provided in the body 10, the first elastic member mounting portion 41 being provided in the first water outlet joint 12 a.

The hydraulic switching valve further comprises a pressure relief structure, the pressure relief structure at least partially releases water in the inner cavity of the body 10 after the water inlet channel 11 is cut off, so that the first movable part 20 can move from the closed position to the open position under the elastic force action of the first elastic element 40, the first movable part 20 can smoothly move from the closed position to the open position, and the function is more reliable. The pressure release structure is specifically by the clearance that overflows that the following says so forms in this embodiment, of course, can also adopt other pressure release structures, for example set up water storage chamber etc. in body 10, after inlet channel 11 cuts off the water supply, the purpose in order to realize the pressure release in the water storage chamber is flowed to some of the water in the body 10, or directly sets up one-way relief valve etc..

In this embodiment, the body 10 is further provided with a second elastic element 50 acting on the second movable element 30, and when the second water outlet channel 13 stops water, the second movable element 30 moves from the yielding position to the limiting position under the action of the second elastic element 50. The second movable member 30 is reset by the second elastic member 50, the structure is simple, the second elastic member 50 is preferably a compression spring, the compression spring is elastically pressed between the second movable member 30 and a second elastic member mounting portion 51 arranged in the body 10, and the second elastic member mounting portion 51 is arranged in the second water outlet joint 13 a.

In this embodiment, the first movable member 20 is provided with a hollow sliding cylinder 21, one end of the sliding cylinder 21 forms an open end, and the other end forms a closed end, and the open end is communicated with the inner cavity so that water in the water inlet passage 11 can enter the inner cavity of the sliding cylinder 21 through the open end. A sliding sleeve 14 with two open ends is formed in the inner cavity of the body 10, and the sliding sleeve 14 divides the inner cavity of the body 10 into a first water passing cavity 15 communicated with the first water outlet channel 12 and a second water passing cavity 16 communicated with the second water outlet channel 13. A first water passing cavity 15 is formed between the outer wall of the sliding sleeve 14 and the inner wall of the body 10, and a second water passing cavity 16 is formed in the inner cavity of the sliding sleeve 14. The sliding barrel 21 is slidably sleeved in the sliding sleeve 14 along the axial direction of the sliding sleeve 14, and the inner wall of the sliding sleeve 14 forms a first guiding part for guiding the sliding of the sliding barrel 21. In this embodiment, a through hole 211 is formed in a side wall of the slide cylinder 21, and when the slide cylinder 21 is in the open position, a portion of the side wall of the slide cylinder 21, in which the through hole 211 is formed, is attached to an inner wall of the slide sleeve 14 to close the through hole 211, so as to cut off communication between the second water passing cavity 16 and the water inlet channel 11. When the sliding cylinder 21 is in the closed position, the through hole 211 communicates with the inner cavity of the sliding cylinder 21 and the inner cavity of the sliding sleeve 14, so as to open the communication between the second water passing cavity 16 and the water inlet channel 11, and water in the water inlet channel 11 flows into the sliding cylinder 21 and then flows into the second water passing cavity 16 through the through hole 211 on the sliding cylinder 21. Here, since the through hole 211 is closed when the slide cylinder 21 is in the open position, the first water passing chamber 15 and the second water passing chamber 16 are relatively independent, so that the influence of the fluctuation of the water pressure of the water flow in the water inlet passage 11 on the second movable member 30 can be avoided, and the function is more stable and reliable.

The first water passing cavity 15 is communicated with the first water outlet channel 12 through a first passing hole 17, in this embodiment, a detachable first fixing frame 61 is arranged in the first water outlet joint 12a, the first elastic element mounting part 41 is formed in the middle of the first fixing frame 61, the first passing hole 17 is formed at an inner end opening of the first fixing frame 61, the first elastic element mounting part 41 is fixedly connected with the first fixing frame 61 through a connecting rib 411, and a passing channel is formed between the first passing hole 17 and the first fixing frame 61. Specifically, the first fixing frame 61 is connected with the inner wall of the first water outlet joint 12a through a screw thread. The first movable member 20 is provided with a first blocking portion 22, the first blocking portion 22 is arranged at the closed end of the sliding cylinder 21, the first blocking portion 22 is formed by radially and outwardly extending the outer wall of the closed end of the sliding cylinder 21, when the first movable member 20 is at the opening position, the first blocking portion 22 is far away from the first overflowing hole 17, and when the first movable member 20 is at the closing position, the first blocking portion 22 closes the first overflowing hole 17.

In this embodiment, one end of the sliding barrel 21 having the first blocking portion 22 is located outside the sliding sleeve 14, when the first moving member 20 is located at the opening position, the blocking portion is in limit fit with an end wall of the sliding sleeve 14, when the first moving member 20 is located at the closing position, an incompletely sealed joint (for example, a joint of two end faces made of hard materials) is formed between the first blocking portion 22 and a hole edge of the first overflowing hole 17, so that an overflowing gap is formed between the first blocking portion 22 and the hole edge of the first overflowing hole 17, the overflowing gap can serve as the above pressure relief structure, when the water inlet channel 11 is cut off, a part of the pressure in the inner cavity of the body 10 can be discharged through the overflowing gap, so that the first moving member 20 can smoothly move from the closing position to the opening position, and the function is more reliable.

In this embodiment, the second water passing cavity 16 is communicated with the second water outlet channel 13 through the second through hole 18, in this embodiment, a detachable second fixing frame 62 is arranged in the second water outlet joint 13a, the second elastic element mounting portion 51 is formed on the second fixing frame 62, and specifically, the second fixing frame 62 is connected with the inner wall of the second water outlet joint 13a through a screw thread. The second movable member 30 is provided with a second blocking portion 32, when the second movable member 30 is at the abdicating position, the second blocking portion 32 is far away from the second overflowing hole 18, and when the second movable member 30 is at the limiting position, the second blocking portion 32 closes the second overflowing hole 18. The second blocking portion 32 is a disc-shaped structure, and when the second water outlet channel 13 is not filled with water, the water pressures on the two sides of the second blocking portion 32 are balanced, so that the second movable member 30 is located at the position-limiting position under the elastic force of the second elastic member 50.

In this embodiment, the second overflowing hole 18 is opened along the radial direction of the sliding sleeve 14 to communicate with the inner cavity of the sliding sleeve 14 in the radial direction of the sliding sleeve 14, and the second movable member 30 slides along the axial direction of the second overflowing hole 18 and is perpendicular to the sliding direction of the sliding cylinder 21. The bolt 31 is arranged on one side of the second blocking portion 32 on the second movable member 30, the lock hole 212 is arranged on the side wall of the sliding cylinder 21, when the second movable member 30 is located at the limiting position, the bolt 31 is inserted into the lock hole 212 to limit the first movable member 20, and when the second movable member 30 is located at the abdicating position, the bolt 31 exits from the lock hole 212 to release the limitation on the first movable member 20. The limit and the abdication of the second movable piece 30 to the first movable piece 20 are realized by the insertion fit or the separation fit of the bolt 31 and the lock hole 212, and the structure is simple.

In this embodiment, the first movable member 20 and the second movable member 30 are both slidably disposed in the body 10, and a first guide portion for guiding the first movable member 20 is disposed in the body 10, and a second guide portion for guiding the second movable member 30 is disposed in the body 10, so that the first movable member 20 and the second movable member 30 can move more smoothly in the body 10 by the first guide portion and the second guide portion. In this embodiment, the inner wall of the sliding sleeve 14 forms the first guiding portion to guide the sliding of the first movable member 20, the second guiding portion is a guiding hole disposed on the second fixed frame 62, a guiding shaft 33 is disposed on a side of the second movable member 30 opposite to the latch 31, and the guiding shaft 33 is in guiding fit with the guiding hole on the second fixed frame 62.

The following briefly describes the specific working principle of this embodiment:

referring to fig. 2, at this time, the second water outlet channel 13 is in a water stop state, the water pressures on the two sides of the disk-shaped second blocking portion 32 on the second movable member 30 are balanced, that is, the water pressure on the second movable member 30 in the body 10 is balanced and is in a limiting position, the latch 31 on the second movable member 30 is inserted into the locking hole 212 to limit the first movable member 20, so that the first movable member 20 is limited in the open position, and the water flow of the water inlet channel 11 passes through the first water passing cavity 15 and the first water passing hole 17 and then is discharged from the first water outlet channel 12.

Referring to fig. 3, when the second water outlet channel 13 is opened to enable the second water outlet channel 13 to be in a water passing state, the water pressure balance at the two sides of the second blocking portion 32 is broken, the second movable member 30 moves from the limiting position to the yielding position under the action of the water inlet pressure, that is, the latch on the second movable member 30 exits the lock hole 212 to yield the first movable member 20, so that the first movable member 20 moves from the opening position to the closing position under the action of the water inlet pressure, and the first water outlet channel 12 is automatically cut off, and no manual switching operation is needed.

In the state of fig. 3, the water inlet channel 11 is kept open, when the second water outlet channel 13 is closed for a short time, because the water pressure in the body 10 is still in the pressure maintaining state at this time, the first movable member 20 is still kept at the closed position, and when the second water outlet channel 13 is opened again, the first water outlet joint 12a continues to keep stopping water, thereby avoiding the problem that a part of water flows out from the first water outlet joint 12a to waste water in the process of closing the second water outlet channel 13 for a short time.

When the water inlet channel 11 is closed and water in the body 10 is at least partially drained to reduce the water pressure, the first movable member 20 is returned to the open position by the first elastic member 40, and the second movable member 30 is returned to the limit position by the second elastic member 50, so that the second movable member 30 again limits the first movable member 20, and when the water inlet channel 11 is opened again, the hydraulic switching valve returns to the state shown in fig. 2.

According to another aspect of the present invention, the present invention further provides a faucet, including a faucet body 10, and any one of the hydraulic switching valves described above, the hydraulic switching valve is attached to the faucet body 10, and the hydraulic switching valve may be integrally formed with the faucet body 10, or may be separately formed and then installed on the faucet body 10. In use, for example, a spray gun (not shown) may be connected to the second water outlet connector 13a, the first water outlet connector 12a may be used as a normal faucet water outlet, and the first water outlet connector 12a may be provided with a water outlet device such as a bubbler.

When the spray gun is opened, the second water outlet channel 13 is used for water flowing, the water pressure balance of the second movable part 30 in the body 10 is broken, and the second movable part moves from the limiting position to the yielding position under the action of the water pressure, so that the first movable part 20 can move from the opening position to the closing position under the action of the water pressure, the first water outlet joint 12a automatically stops water outlet, only spray gun water is discharged at the moment, and the automatic switching of a water channel is automatically completed. In the process of using the spray gun, the spray gun is required to be switched on or off within a short time, when the spray gun is switched off within a short time, because the water pressure in the body 10 is still in a pressure maintaining state, the first movable member 20 is still kept at the closed position, when the spray gun is switched on again, the spray gun still outputs water (namely, the water is output from the second water output connector 13 a), and the first water output connector 12a keeps stopping the water continuously, so that the problem that the water in the body 10 is wasted due to the outflow of the water from the first water output connector 12a can be avoided.

When the switch valve (not shown) on the faucet for controlling the opening and closing of the water inlet channel 11 is closed to stop water in the water inlet channel 11, and after the spray gun is closed for a long time, because the water in the body 10 is partially discharged, the water pressure is reduced, the first movable member 20 is reset under the action of the first elastic member 40, so that when the switch valve of the faucet is opened again and the spray gun is still closed, the water flow still flows out from the first water outlet connector 12a, and the use of people is facilitated.

The water faucet of the embodiment is very convenient to use, when the spray gun is not used, the switch valve on the water faucet is opened, and water flows out from the first water outlet connector 12a to carry out water outlet of the common water faucet; when the spray gun needs to be used, the first water outlet joint 12a automatically stops water and only discharges water of the spray gun under the action of the hydraulic switching valve as long as the spray gun is opened; when the spray gun is frequently opened or closed in a short time, the first movable member 20 can be kept at the closed position so that water does not flow out of the first water outlet joint 12a, thereby facilitating use and saving water resources; when the on-off valve on the faucet is closed, the first movable member 20 and the second movable member 30 can be automatically reset to return to the initial state so that the water flow still flows out of the first water outlet connector 12a when the on-off valve on the faucet is next reopened and the spray gun is closed.

Unless defined otherwise, technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Terms such as "component" and the like, when used herein, can refer to either a single part or a combination of parts. Terms such as "mounted," "disposed," and the like, as used herein, may refer to one component as being directly attached to another component or one component as being attached to another component through intervening components. Features described herein in one embodiment may be applied to another embodiment, either alone or in combination with other features, unless the feature is otherwise inapplicable or otherwise stated in the other embodiment.

While the foregoing specification illustrates and describes the preferred embodiments of this invention, it is to be understood that the invention is not limited to the forms disclosed herein, but is not to be construed as limited to other embodiments, and is capable of use in various other combinations, modifications, and environments and is capable of changes within the scope of the inventive concept as expressed herein, commensurate with the above teachings, or the skill or knowledge of the relevant art. And that modifications and variations may be effected by those skilled in the art without departing from the spirit and scope of the invention as defined by the appended claims.