阅读说明：本技术 一种水动式户外防冻水龙头 (Water-driven outdoor anti-freezing water faucet ) 是由 刘潼 于 2021-07-08 设计创作，主要内容包括：本发明公开了一种水动式户外防冻水龙头,属于水龙头领域,通过将出水管中滞留水通过溢水软管缓慢导入储水环袋中聚集,当储水环袋中达到一定水量后,会触发中空环盖进行下降,失去对半硬弹环的阻隔限位作用,此时半硬弹环向内发生弹性收缩,对储水环袋形成挤压,促使储水环袋中水分向出水管发生回流,回流至一定程度后,中空环盖再次向上回升,重新分离储水环袋和半硬弹环,储水环袋再次进行储水过程,通过上述水的双向循环流动,使出水管和水阀中的滞留水处于一个持续流动状态,大大提高了水的动能,有效降低水阀和出水管内滞留水发生冻结情况,实现对水阀和出水管的防冻保护。(The invention discloses a water-driven outdoor anti-freezing water tap, belonging to the field of water taps, which is characterized in that the water retained in a water outlet pipe is slowly guided into a water storage ring bag through an overflow hose to be gathered, when a certain amount of water is reached in the water storage ring bag, the hollow ring cover is triggered to descend, the blocking and limiting effect on the semi-hard elastic ring is lost, the semi-hard elastic ring elastically contracts inwards, squeezing the water storage ring bag to make the water in the water storage ring bag flow back to the water outlet pipe and flow back to a certain degree, the hollow ring cover rises upwards again, the water storage ring bag and the semi-hard elastic ring are separated again, the water storage ring bag carries out the water storage process again, the water is circulated in two directions, so that the retained water in the water outlet pipe and the water valve is in a continuous flowing state, the kinetic energy of the water is greatly improved, the freezing condition of the retained water in the water valve and the water outlet pipe is effectively reduced, and the freeze protection of the water valve and the water outlet pipe is realized.)

1. The utility model provides a water-powered outdoor anti-freezing water faucet, includes water valve (1) and outlet pipe (2), outlet pipe (2) fixed connection is in the upper end of water valve (1), its characterized in that: the outer end of the water valve (1) is fixedly connected with a cavity ring plate (3), a water storage ring bag (7), a semi-hard elastic ring (8) and a hollow ring cover (9) are arranged inside the cavity ring plate (3), the water storage ring bag (7) and the hollow ring cover (9) are both positioned on the inner side of the semi-hard elastic ring (8), the hollow ring cover (9) is positioned on the lower side of the water storage ring bag (7), the lower end of the semi-hard elastic ring (8) is fixedly connected with the inner bottom surface of the cavity ring plate (3), and the hollow ring cover (9) is connected inside the cavity ring plate (3) in a sliding mode;

the water storage ring plate is characterized in that a main magnetic sheet (10) is fixedly connected to the lower end of the hollow ring cover (9), an auxiliary magnetic sheet (12) is fixedly connected to the inside of the hollow ring plate (3), the auxiliary magnetic sheet (12) is located on the upper side of the water storage ring bag (7), an outer end of the water storage ring bag (7) is fixedly connected with an overflow hose (6) communicated with the inside of the water storage ring bag, the overflow hose (6) penetrates through the inside of the hollow ring plate (3) and extends to the outside of the hollow ring plate, an outer end of the water outlet pipe (2) is fixedly connected with a bidirectional water pipe (4) communicated with the inside of the water outlet pipe, an outer end of the bidirectional water pipe (4) is in threaded connection with a main pipe cover (5), and the main pipe cover (5) is fixedly connected with the overflow hose (6) and communicated with the overflow hose.

2. The water operated outdoor antifreeze faucet of claim 1, further comprising: semi-hard elastic ring (8) include elastic ring area (81), the lower extreme of elastic ring area (81) and the interior bottom surface fixed connection of cavity crown plate (3), the outer end fixed connection of elastic ring area (81) has a plurality of evenly distributed's wand (82).

3. The water operated outdoor antifreeze faucet of claim 2, wherein: the cavity ring plate is characterized in that a plurality of grooves corresponding to the hard rods (82) one by one are formed in the upper inner wall of the cavity ring plate (3), and limiting sliding rods (13) are fixedly connected inside the grooves.

4. The water operated outdoor antifreeze faucet of claim 3, wherein: the hard rod (82) is provided with a sliding hole (8201), and the limiting sliding rod (13) is connected to the inside of the sliding hole (8201) in a sliding mode.

5. The water operated outdoor antifreeze faucet of claim 1, further comprising: the cavity ring plate is characterized in that a plurality of evenly distributed sliding grooves (301) are formed in the inner side wall of the cavity ring plate (3), a plurality of sliding blocks (11) are fixedly connected to the inner end of the cavity ring cover (9), and the sliding blocks (11) are respectively connected to the inner portions of the sliding grooves (301) in a sliding mode.

6. The water operated outdoor antifreeze faucet of claim 2, wherein: the maximum outer ring diameter of the hollow ring cover (9) is larger than the initial inner ring diameter of the elastic ring belt (81).

7. The water operated outdoor antifreeze faucet of claim 1, further comprising: the inside of two-way water pipe (4) is equipped with the spoiler, the spoiler includes otter board (14), compression spring (15), ball (16) and the crown plate (17) that distribute in proper order and contact each other from a left side to the right side, otter board (14) and crown plate (17) fixed connection are on the inner wall of two-way water pipe (4), the outer lane diameter of ball (16) is greater than the inner circle diameter of crown plate (17).

8. The water operated outdoor antifreeze faucet of claim 7, wherein: the inner bottom surface of the main pipe cover (5) is fixedly connected with a push rod (18), and the shortest distance from the sealing ball (16) to the pipe orifice of the bidirectional water pipe (4) is less than the length of the push rod (18).

9. The water operated outdoor antifreeze faucet of claim 1, further comprising: the water pipe is characterized by further comprising an auxiliary pipe cover (19), wherein the inner end of the auxiliary pipe cover (19) is in threaded connection with the outer end of the bidirectional water pipe (4).

10. The water operated outdoor antifreeze faucet of claim 3, wherein: the vertical distance from the hard rod (82) to the inner bottom surface of the cavity ring plate (3) is greater than the vertical height of the hollow ring cover (9).

Technical Field

The invention relates to the field of water faucets, in particular to a water-driven outdoor anti-freezing water faucet.

Background

The water tap is a popular name of a water valve, is used for controlling the size of water flow to be switched on and off, and has the effect of saving water. The water tap has a very fast updating speed, and develops from an old cast iron process to an electroplating knob type water tap, a stainless steel single-temperature single-control water tap, a stainless steel double-temperature double-control water tap and a kitchen semi-automatic water tap. At present, more and more consumers purchase faucets, and the faucets are comprehensively considered from various aspects such as materials, functions, shapes and the like.

Outdoor tap that uses is at chilly winter night time, because temperature is lower, can be detained more running water in adding the tap again for inside stagnant water freezes, thereby freezes tap, and traditional method is to wait for tap to melt ice and unfreeze automatically, but the time is longer, or unfreeze tap through hot water heating, causes tap's damage easily like this.

Disclosure of Invention

1. Technical problem to be solved

Aiming at the problems in the prior art, the invention aims to provide a water-driven outdoor anti-freezing water faucet, which enables the retained water in a water outlet pipe and a water valve to be in a continuous flowing state by realizing the bidirectional circulating flow of the retained water between a water pipe and a water storage ring bag, greatly improves the kinetic energy of water, effectively reduces the freezing condition of the retained water in the water valve and the water outlet pipe, and realizes the anti-freezing protection of the water valve and the water outlet pipe.

2. Technical scheme

In order to solve the above problems, the present invention adopts the following technical solutions.

A water-powered outdoor anti-freezing water faucet comprises a water valve and a water outlet pipe, wherein the water outlet pipe is fixedly connected to the upper end of the water valve, the outer end of the water valve is fixedly connected with a cavity ring plate, a water storage ring bag, a semi-hard elastic ring and a hollow ring cover are arranged inside the cavity ring plate, the water storage ring bag and the hollow ring cover are both positioned on the inner side of the semi-hard elastic ring, the hollow ring cover is positioned on the lower side of the water storage ring bag, the lower end of the semi-hard elastic ring is fixedly connected with the inner bottom surface of the cavity ring plate, and the hollow ring cover is slidably connected inside the cavity ring plate;

the water storage ring plate is characterized in that a main magnetic sheet is fixedly connected to the lower end of the hollow ring cover, an auxiliary magnetic sheet is fixedly connected to the interior of the hollow ring plate and located on the upper side of the water storage ring bag, an overflow hose communicated with the interior of the water storage ring bag is fixedly connected to the outer end of the water storage ring bag, the overflow hose penetrates through the interior of the hollow ring plate and extends to the outer side of the hollow ring plate, a bidirectional water pipe communicated with the interior of the water outlet pipe is fixedly connected to the outer end of the water outlet pipe, a main pipe cover is in threaded connection with the outer end of the bidirectional water pipe, and the main pipe cover is fixedly connected with and communicated with the overflow hose.

Furthermore, the semi-hard elastic ring comprises an elastic ring belt, the lower end of the elastic ring belt is fixedly connected with the inner bottom surface of the cavity ring plate, and the outer end of the elastic ring belt is fixedly connected with a plurality of uniformly distributed hard rods.

Furthermore, a plurality of grooves corresponding to the hard rods one to one are formed in the upper inner wall of the cavity ring plate, and limiting sliding rods are fixedly connected inside the grooves.

Furthermore, a slide hole is formed in the hard rod, and the limiting slide rod is connected to the inside of the slide hole in a sliding mode.

Furthermore, a plurality of evenly distributed's spout is seted up to the inside wall of cavity crown plate, a plurality of sliders of the inner fixedly connected with of cavity crown cap, it is a plurality of slider difference sliding connection is in the inside of a plurality of spouts, uses through the cooperation of slider and spout, restricts the reciprocating range of cavity crown cap.

Furthermore, the maximum outer ring diameter of the hollow ring cover is larger than the initial inner ring diameter of the elastic ring belt, the elastic ring belt surrounding the outer side of the hollow ring cover is in an elastic expansion state in the initial state, after the blocking of the hollow ring cover is lost, elastic contraction is conveniently carried out on the inner side, the water storage ring bag is squeezed, and water in the water storage ring bag flows back to the water outlet pipe through the overflow hose.

Further, the inside of two-way water pipe is equipped with the spoiler, the spoiler includes otter board, compression spring, ball and the ring board that distributes and contact each other from a left side to the right side in proper order, otter board and ring board fixed connection are on the inner wall of two-way water pipe, the outer lane diameter of ball is greater than the inner circle diameter of ring board, and the spoiler plays effective shutoff effect to two-way water pipe, makes the difficult two-way water pipe that overflows to the external world of retaining water in the outlet pipe.

Furthermore, the push rod is fixedly connected to the inner bottom surface of the main pipe cover, the shortest distance from the sealing ball to the orifice of the bidirectional water pipe is smaller than the length of the push rod, the main pipe cover is sealed at the outer end of the bidirectional water pipe when the water valve and the water outlet pipe need to be protected from freezing, the push rod penetrates through the inner side of the ring plate to push the sealing ball inwards, and after the retained water in the water outlet pipe enters the bidirectional water pipe, the retained water can smoothly enter the overflow hose through the net plate and the ring plate to realize bidirectional circulating flow of water.

Further, still include the auxiliary pipe lid, the outer end threaded connection of the inner of auxiliary pipe lid and two-way water pipe, when the outlet pipe is used normally, the accessible auxiliary pipe lid carries out further sealed to two-way water pipe, makes two-way water pipe be difficult for taking place the overflow phenomenon.

Furthermore, the vertical distance from the hard rod to the inner bottom surface of the cavity ring plate is greater than the vertical height of the hollow ring cover, so that the hollow ring cover can be completely separated from the hard rod when falling to the inner bottom surface of the cavity ring plate, the blocking effect on the hard rod is lost, and the hard rod and the elastic ring belt are enabled to be partially contracted inwards.

3. Advantageous effects

Compared with the prior art, the invention has the advantages that:

(1) the scheme ensures that the retained water in the water outlet pipe and the water valve is in a continuous flowing state through the bidirectional circulating flow of the retained water between the water pipe and the water storage ring bag, greatly improves the kinetic energy of water, effectively reduces the freezing condition of the retained water in the water valve and the water outlet pipe, and realizes the anti-freezing protection of the water valve and the water outlet pipe.

(2) In the initial state, the elastic ring belt surrounding the outer side of the hollow ring cover is in an elastic expansion state, after the blocking of the hollow ring cover is lost, elastic contraction is conveniently carried out towards the inner side, the water storage ring bag is extruded, and water in the water storage ring bag flows back to the water outlet pipe through the overflow hose.

(3) The water retained in the water outlet pipe is slowly guided into the water storage ring bag through the overflow hose to be gathered, the pressure applied to the hollow ring cover is increased along with the increase of the water quantity, when the pressure is greater than the magnetic attraction of the main magnetic sheet and the auxiliary magnetic sheet, the hollow ring cover is forced to descend and loses the blocking and limiting effect on the semi-hard elastic ring, at the moment, the semi-hard elastic ring elastically contracts inwards to extrude the water storage ring bag to enable the water in the water storage ring bag to flow back to the water outlet pipe,

(4) and when the pressure applied to the hollow ring cover is reduced to be smaller than the magnetic attraction of the main magnetic sheet and the auxiliary magnetic sheet, the hollow ring cover rises upwards again, the water storage ring bag and the semi-hard elastic ring are separated again, and the water storage process is carried out on the water storage ring bag again.

Drawings

FIG. 1 is a perspective view of the present invention during freeze protection;

FIG. 2 is a schematic diagram of the front structure of the cavity ring plate of the present invention;

FIG. 3 is a schematic view of a partial front view of the cavity ring plate of the present invention;

FIG. 4 is a perspective view of a semi-rigid snap ring of the present invention;

FIG. 5 is a schematic view of a partial front structure of the water storage circular bag of the present invention after storing water;

FIG. 6 is a schematic view of a partial front structure of the water storage bag according to the present invention when the water is returned;

FIG. 7 is a schematic front view of the bidirectional water pipe according to the present invention;

FIG. 8 is a schematic front view of the bi-directional water pipe and the main pipe cover of the present invention when they are not connected;

FIG. 9 is a schematic front view of the bi-directional water pipe and the sub pipe cap according to the present invention when they are coupled;

fig. 10 is a perspective view of the present invention in normal use.

The reference numbers in the figures illustrate:

the water valve 1, the water outlet pipe 2, the cavity ring plate 3, the sliding chute 301, the bidirectional water pipe 4, the main pipe cover 5, the overflow hose 6, the water storage ring bag 7, the semi-hard elastic ring 8, the elastic ring belt 81, the hard rod 82, the sliding hole 8201, the hollow ring cover 9, the main magnetic sheet 10, the sliding block 11, the auxiliary magnetic sheet 12, the limiting sliding rod 13, the mesh plate 14, the compression spring 15, the ball sealer 16, the ring plate 17, the push rod 18 and the auxiliary pipe cover 19.

Detailed Description

The drawings in the embodiments of the invention will be combined; the technical scheme in the embodiment of the invention is clearly and completely described; obviously; the described embodiments are only some of the embodiments of the invention; but not all embodiments, are based on the embodiments of the invention; all other embodiments obtained by a person skilled in the art without making any inventive step; all fall within the scope of protection of the present invention.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example (b):

referring to fig. 1 and 2, a water-powered outdoor anti-freezing water faucet includes a water valve 1 and a water outlet pipe 2, the water outlet pipe 2 is fixedly connected to the upper end of the water valve 1, the outer end of the water valve 1 is fixedly connected to a cavity ring plate 3, a water storage ring bag 7, a semi-hard elastic ring 8 and a hollow ring cover 9 are arranged inside the cavity ring plate 3, the water storage ring bag 7 and the hollow ring cover 9 are both located inside the semi-hard elastic ring 8, the hollow ring cover 9 is located on the lower side of the water storage ring bag 7, the lower end of the semi-hard elastic ring 8 is fixedly connected to the inner bottom surface of the cavity ring plate 3, and the hollow ring cover 9 is slidably connected to the inside of the cavity ring plate 3.

Referring to fig. 3, the lower end of the hollow annular cover 9 is fixedly connected with a main magnetic sheet 10, the interior of the hollow annular plate 3 is fixedly connected with an auxiliary magnetic sheet 12, the auxiliary magnetic sheet 12 is positioned on the upper side of the water storage annular bag 7, the outer end of the water storage annular bag 7 is fixedly connected with an overflow hose 6 communicated with the interior of the water storage annular bag, the overflow hose 6 penetrates through the interior of the hollow annular plate 3 and extends to the outer side of the hollow annular plate, the outer end of the water outlet pipe 2 is fixedly connected with a bidirectional water pipe 4 communicated with the interior of the water outlet pipe, the outer end of the bidirectional water pipe 4 is in threaded connection with a main pipe cover 5, the main pipe cover 5 is fixedly connected and communicated with the overflow hose 6, the retained water in the water outlet pipe 2 can flow into the water storage annular bag 7 through the bidirectional water pipe 4 and the overflow hose 6 to be collected, the edge of the portion of the water storage annular bag 7 connected with the overflow hose 6 is fixedly connected with the inner wall of the hollow annular plate 3, therefore, when the water amount in the water storage circular bag 7 is increased, the large pulling force on the overflow hose 6 is not easy to cause.

Referring to fig. 4, the semi-rigid elastic ring 8 includes an elastic ring belt 81, a lower end of the elastic ring belt 81 is fixedly connected to an inner bottom surface of the cavity ring plate 3, an outer end of the elastic ring belt 81 is fixedly connected to a plurality of hard rods 82 which are uniformly distributed, the hard rods 82 are used for connecting and fixing an upper half portion of the elastic ring belt 81, so that the elastic ring belt 81 where the hard rods 82 are located can be synchronously inwardly contracted or outwardly expanded, referring to fig. 4 and 5, an upper inner wall of the cavity ring plate 3 is provided with a plurality of grooves which are in one-to-one correspondence with the hard rods 82, the inner portions of the grooves are fixedly connected with the limiting slide rods 13, the hard rods 82 are provided with slide holes 8201, the limiting slide rods 13 are slidably connected to the inside of the slide holes 8201, and the hard rods 82 are limited in movement by the matching of the limiting slide rods 13 and the slide holes 8201, so that the hard rods 82 stably drive the elastic ring belt 81 to inwardly contract or outwardly expand.

Referring to fig. 5, the inner side wall of the cavity ring plate 3 is provided with a plurality of sliding grooves 301 which are uniformly distributed, the inner end of the cavity ring cover 9 is fixedly connected with a plurality of sliding blocks 11, the sliding blocks 11 are respectively connected inside the sliding grooves 301 in a sliding manner, and the up-down movement range of the cavity ring cover 9 is limited by the matching use of the sliding blocks 11 and the sliding grooves 301.

Referring to fig. 3, the maximum outer diameter of the hollow ring cover 9 is greater than the initial inner diameter of the elastic ring belt 81, in the initial state, the elastic ring belt 81 surrounding the outer side of the hollow ring cover 9 is in an elastically expanded state, and when the blocking of the hollow ring cover 9 is lost, the elastic ring belt is elastically contracted inward conveniently, the water storage ring bag 7 is squeezed, so that the water in the water storage ring bag 7 flows back to the water outlet pipe 2 through the overflow hose 6, referring to fig. 5 and 6, the vertical distance from the hard rod 82 to the inner bottom surface of the cavity ring plate 3 is greater than the vertical height of the hollow ring cover 9, so that when the hollow ring cover 9 descends to the inner bottom surface of the cavity ring plate 3, the hard rod 82 can be completely separated from the hard rod 82, the blocking effect of the hard rod 82 is lost, and the hard rod 82 and the elastic ring belt 81 are locally contracted inward.

In an initial state, that is, when the water storage circular bag 7 contains no water, please refer to fig. 3, under the action of the magnetic attraction of the main magnetic pieces 10 and the auxiliary magnetic pieces 12, the hollow circular cover 9 is located at the upper inner wall of the sliding chute 301, and the hard rod 82 is located at the outer side of the hollow circular cover 9; referring to fig. 5, after the water remaining in the water outlet pipe 2 gradually flows into the water storage ring bag 7 through the overflow hose 6, as the water amount increases, the pressure applied to the hollow ring cover 9 increases, and when the pressure increases to be greater than the magnetic attraction of the main magnetic sheet 10 and the auxiliary magnetic sheet 12, the hollow ring cover 9 moves downward along the sliding groove 301 until the water falls to the inner bottom surface of the cavity ring plate 3, at this time, referring to fig. 6, the hard rod 82 is located on the upper side of the hollow ring cover 9, and under the elastic contraction of the elastic ring belt 81, the hard rod 82 is driven to move inward, so as to squeeze the water storage ring bag 7, so that the water accumulated in the water storage ring bag 7 flows back into the water outlet pipe 2 along the overflow hose 6, and the pressure applied to the hollow ring cover 9 gradually decreases;

when the pressure is smaller than the magnetic attraction force of the main magnetic sheet 10 and the auxiliary magnetic sheet 12 again, the hollow ring cover 9 rises upwards to the upper inner wall of the sliding groove 301 again, the hollow ring cover 9 extrudes the hard rod 82 and the elastic ring belt 81 outwards again to separate the hard rod and the elastic ring belt 7, and after the semi-hard elastic ring 8 is extruded, the water storage process is carried out on the water storage ring bag 7 again, so that the water retained in the water outlet pipe 2 and the water valve 1 is in a continuous flowing state through the bidirectional circulating flow of the water, the kinetic energy of the water is greatly improved, the freezing condition of the water retained in the water valve 1 and the water outlet pipe 2 is effectively reduced, and the anti-freezing protection of the water valve 1 and the water outlet pipe 2 is realized.

Referring to fig. 7 and 8, a flow plug is arranged inside the bidirectional water pipe 4, the flow plug includes a mesh plate 14, a compression spring 15, a ball seal 16 and a ring plate 17 which are sequentially distributed from left to right and are in contact with each other, the mesh plate 14 and the ring plate 17 are fixedly connected to the inner wall of the bidirectional water pipe 4, the diameter of an outer ring of the ball seal 16 is larger than that of an inner ring of the ring plate 17, and the flow plug plays an effective plugging role on the bidirectional water pipe 4, so that the retained water in the water outlet pipe 2 is not easy to overflow to the outside through the bidirectional water pipe 4.

Referring to fig. 7 and 8, a push rod 18 is fixedly connected to the inner bottom surface of the main pipe cover 5, the shortest distance from the sealing ball 16 to the orifice of the bidirectional water pipe 4 is smaller than the length of the push rod 18, when the water valve 1 and the water outlet pipe 2 need to be protected from freezing, the main pipe cover 5 is sealed at the outer end of the bidirectional water pipe 4, at this time, the push rod 18 penetrates through the inner side of the ring plate 17 to push the sealing ball 16 inwards, and after water retained in the water outlet pipe 2 enters the bidirectional water pipe 4, the water can smoothly enter the overflow hose 6 through the mesh plate 14 and the ring plate 17, so that bidirectional circulating flow of the water is realized.

Referring to fig. 9 and 10, the present invention further includes an auxiliary pipe cover 19, wherein an inner end of the auxiliary pipe cover 19 is in threaded connection with an outer end of the bidirectional water pipe 4, and when the water outlet pipe 2 is normally used, the bidirectional water pipe 4 is further sealed by the auxiliary pipe cover 19, so that the bidirectional water pipe 4 is not easy to overflow.

The invention slowly guides the retained water in the water outlet pipe 2 into the water storage circular bag 7 through the overflow hose 6 for gathering, when a certain amount of water is reached in the water storage ring bag 7, the hollow ring cover 9 is triggered to descend, the blocking and limiting effect on the semi-hard elastic ring 8 is lost, at the moment, the semi-hard elastic ring 8 elastically contracts inwards, the water storage circular bag 7 is extruded to promote the water in the water storage circular bag 7 to flow back to the water outlet pipe 2, and after the water flows back to a certain degree, the hollow ring cover 9 rises upwards again, the water storage ring bag 7 and the semi-hard elastic ring 8 are separated again, the water storage ring bag 7 carries out the water storage process again, through the bidirectional circulating flow of the water, the retained water in the water outlet pipe 2 and the water valve 1 is in a continuous flowing state, so that the kinetic energy of the water is greatly improved, the freezing condition of the retained water in the water valve 1 and the water outlet pipe 2 is effectively reduced, and the anti-freezing protection of the water valve 1 and the water outlet pipe 2 is realized.

The above; but are merely preferred embodiments of the invention; the scope of the invention is not limited thereto; any person skilled in the art is within the technical scope of the present disclosure; the technical scheme and the improved concept of the invention are equally replaced or changed; are intended to be covered by the scope of the present invention.