Time delay valve and sanitary ware applying same

Abstract

The utility model discloses a time-delay valve and discloses a sanitary ware with the time-delay valve, the time-delay valve is characterized in that a shell comprises a water inlet cavity and a water outlet cavity, and a communication port is arranged between the water inlet cavity and the water outlet cavity; the water sealing piece is movably installed in the shell to control opening and closing of the communicating opening, a pressure cavity is defined by the water sealing piece and the interior of the shell, and a water passing channel is formed in the water sealing piece; the valve needle penetrates through the water passing channel; the flexible sealing ring is installed on the valve needle and can abut against the end, close to the water inlet cavity, of the water passing channel, a water passing groove is defined between the flexible sealing ring and the water passing channel, and the flexible sealing ring elastically deforms along with the water pressure change of the water inlet cavity; the flexible sealing ring enables the water passing sectional area of the water passing groove to be matched with the current water pressure in real time through elastic deformation, pressure self-adaptive throttling damping is formed, the flow attenuation rate is automatically matched with the water hammer pressure intensity, harmonic superposition of pressure oscillation is effectively restrained, and therefore the low water hammer effect is achieved in the process of blocking the communication opening.

Description

TECHNICAL FIELD

[0001] The utility model relates to water valve technical field, especially a kind of delay valve and the sanitary ware of application thereof. BACKGROUND

[0002] Some existing delay valves realize fast-to-slow delay water closing action by variable diameter rod. Since rigid geometric cooperation is adopted between variable diameter rod and valve sleeve, the change curve of throttling area only presents linear relationship with mechanical displacement, and the damping coefficient cannot be adjusted according to actual working condition. When pipeline pressure is relatively high, fluid kinetic energy generated by instantaneous closing cannot be effectively dissipated, and when pipeline pressure is relatively low, delay time is easily prolonged, leading to water resource waste. These delay valves lack the ability of self-adapting to pipeline pressure fluctuation, and water hammer problem is easily generated in closing process. SUMMARY

[0003] The utility model aims at at least one of the above technical problems in the related art to some extent. To this end, the utility model provides a delay valve.

[0004] To achieve the above purpose, the technical scheme of the utility model is as follows:

[0005] The utility model further provides a sanitary ware with the above delay valve.

[0006] According to the delay valve of the first aspect embodiment of the utility model, comprising:

[0007] The shell comprises water inlet cavity and water outlet cavity, and the water inlet cavity and the water outlet cavity are provided with a communication port;

[0008] The water sealing element is movably installed in the shell to control the opening and closing of the communication port, and the water sealing element and the interior of the shell define a pressure chamber, and the water sealing element is provided with a water passing channel capable of connecting the pressure chamber and the water inlet cavity;

[0009] The valve needle is arranged in the water passing channel;

[0010] The flexible sealing ring is installed on the valve needle and can abut on the end of the water passing channel close to the water inlet cavity, and the flexible sealing ring and the water passing channel define a water passing groove, and the flexible sealing ring elastically deforms with the change of water pressure of the water inlet cavity, so that the water passing cross-sectional area of the water passing groove becomes smaller when the water pressure of the water inlet cavity becomes larger.

[0011] The delay valve has at least the following beneficial effects: the flexible sealing ring is deformed elastically to adapt the water passage cross section of the water passage groove to the current water pressure in real time, pressure self-adaptive throttling damping is formed, the flow decay rate is automatically matched with the water hammer pressure intensity, the harmonic superposition of pressure oscillation is effectively inhibited, and the effect of low water hammer is achieved in the process of plugging the communication port.

[0012] According to some embodiments of the present application, the valve needle is movably arranged in the water passage, the valve needle comprises a first end and a second end, the first end extends into the water inlet cavity, the flexible sealing ring is sleeved on the first end, and the flexible sealing ring moves away from or abuts on the end of the water passage close to the water inlet cavity.

[0013] According to some embodiments of the present application, a first elastic member is arranged between the valve needle and the water passage, and the first elastic member applies an elastic force to the valve needle to move the valve needle to the pressure cavity.

[0014] According to some embodiments of the present application, at least two water passage grooves are arranged on the flexible sealing ring in a circumferential direction.

[0015] According to some embodiments of the present application, the second end extends into the pressure cavity, and when the water sealing member moves to the direction of reducing the pressure cavity, the second end can abut on the inner wall of the shell to push the valve needle to the direction of the water inlet cavity relative to the water passage.

[0016] According to some embodiments of the present application, a convex edge is arranged on one end surface of the flexible sealing ring, the convex edge extends in the circumferential direction of the flexible sealing ring, the convex edge can abut on the end of the water passage, and the water passage groove is arranged on the convex edge in the radial direction of the flexible sealing ring.

[0017] According to some embodiments of the present application, the end of the water passage groove towards the end of the water passage is a V-shaped opening.

[0018] According to some embodiments of the present application, a second elastic member is arranged in the pressure cavity, the second elastic member applies an elastic force to the water sealing member to move the water sealing member to the direction of plugging the communication port, and a movable push rod is further arranged on the shell, and the push rod can push the water sealing member to the direction of opening the communication port.

[0019] According to some embodiments of the present application, a through hole is arranged on the water sealing member, a water passage pipe is detachably arranged on the through hole, and the water passage is formed in the water passage pipe.

[0020] According to the second aspect of the utility model discloses a sanitary ware, comprising a delay valve.

[0021] According to the second aspect of the utility model discloses a sanitary ware, comprising a delay valve.

[0022] The additional aspects and advantages of the utility model will be partially given in the following description, and some will become obvious from the following description, or be understood by the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0023] The above and / or additional aspects and advantages of the utility model will become apparent and more readily appreciated from the following description of the embodiments, with reference to the following drawings, in which:

[0024] Figure 1 It is the use state schematic drawing of delay valve in the closed state;

[0025] Figure 2 It is the use state schematic drawing of delay valve in the open state;

[0026] Figure 3 It is the use state schematic drawing of delay valve in the open state to the closed state movement process;

[0027] Figure 4 It is the structure schematic drawing of shell;

[0028] Figure 5 It is the partial structure exploded schematic drawing of delay valve;

[0029] Figure 6 It is the structure schematic drawing of flexible sealing ring.

[0030] Reference signs:

[0031] Shell 100;Water inlet cavity 110;Water outlet cavity 120;Communication mouth 130;Pressure cavity 140;

[0032] Water sealing element 200;Water passing channel 210;Through hole 220;Water passing pipe 230;

[0033] Valve needle 300;First end 310;Second end 320;

[0034] Flexible sealing ring 400;Water passing groove 410;Convex edge 420;

[0035] First elastic member 500;Second elastic member 600;

[0036] Push rod 700. DETAILED DESCRIPTION

[0037] Embodiments of the present application will be described in detail below, examples of which are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by reference to the drawings are exemplary and are intended to explain the present application, and cannot be understood as limiting the present application.

[0038] The utility model relates to a kind of delay valves, including shell 100, water sealing element 200, valve needle 300 and flexible sealing ring 400.

[0039] As Figure 1 、 Figure 4 、 Figure 5 And Figure 6 Indicated, the inside of shell 100 defines water inlet cavity 110 and water outlet cavity 120. Water inlet cavity 110 and water outlet cavity 120 are provided with communication port 130, and communication port 130 is used to communicate water inlet cavity 110 and water outlet cavity 120. Water sealing element 200 is installed in shell 100, and water sealing element 200 can be moved in shell 100. Water sealing element 200 and the inside of shell 100 define pressure cavity 140. The volume of pressure cavity 140 changes with the movement of water sealing element 200. When water sealing element 200 moves away from the direction of communication port 130, pressure cavity 140 shrinks, and communication port 130 is opened, and water inlet cavity 110 and water outlet cavity 120 are communicated by communication port 130. When water sealing element 200 moves to the direction of communication port 130, pressure cavity 140 becomes larger, and water sealing element 200 can be moved to block communication port 130, so as to cut off the communication of water inlet cavity 110 and water outlet cavity 120. When water sealing element 200 moves to block communication port 130, pressure cavity 140 reaches the maximum. Water sealing element 200 is provided with water passage 210, and water passage 210 can communicate water inlet cavity 110 and pressure cavity 140. Valve needle 300 is provided in water passage 210, and there is a certain water gap between valve needle 300 and water passage 210, and valve needle 300 does not block water passage 210. One end of valve needle 300 is provided with flexible sealing ring 400. Flexible sealing ring 400 can be rubber, silicone or other elastic materials. Flexible sealing ring 400 can be O-ring, solid ring body, etc. Flexible sealing ring 400 and water passage 210 define water passage 410, which can be provided on the end of water passage 210, or on flexible sealing ring 400, or part of water passage 410 is provided on water passage 210, and the other part is provided on flexible sealing ring 400. In the embodiment, as Figure 1As shown, the flexible sealing ring 400 is installed at the lower end of the valve needle 300 in the direction of the illustration, and is located below the water passage 210. At least two water passing grooves 410 are formed on the upper end surface of the flexible sealing ring 400, and are distributed along the circumference of the flexible sealing ring 400. The flexible sealing ring 400 abuts against the lower end of the water passage 210 upwardly, so that the water passage 210 is communicated with the water inlet cavity 110 through the water passing grooves 410. The water pressure of the water inlet cavity 110 will exert a force on the flexible sealing ring 400, and the flexible sealing ring 400 will be elastically deformed with the change of the water pressure of the water inlet cavity 110, and the water passing cross-sectional area of the water passing grooves 410 will also change with the elastic deformation of the flexible sealing ring 400. In particular, the greater the water pressure of the water inlet cavity 110, the greater the elastic deformation of the flexible sealing ring 400, and the smaller the water passing cross-sectional area of the water passing grooves 410; and the smaller the water pressure of the water inlet cavity 110, the smaller the elastic deformation of the flexible sealing ring 400, and the greater the water passing cross-sectional area of the water passing grooves 410.

[0040] In actual use, the time delay valve can be applied to sanitary wares, such as urinals, squatting toilets, etc. The water inlet cavity 110 of the shell 100 is connected with an external water supply system, such as a tap water pipe. The water outlet cavity 120 is connected with a flushing pipeline of the sanitary wares. Under normal circumstances, as shown in FIG. 1, the water inlet cavity 110 is communicated with the external water supply system, the water sealing member 200 is moved to and kept at the position of blocking the communication opening 130, and the water in the water inlet cavity 110 flows into the pressure cavity 140 through the water passage 210, so that the pressure cavity 140 is filled with water to reach the maximum volume state. Figure 1 As shown, when it is necessary to flush the sanitary wares, the water sealing member 200 is pushed by an external force to move upwardly away from the communication opening 130, the communication opening 130 is opened, and the water in the water inlet cavity 110 flows to the water outlet cavity 120 through the communication opening 130, and then is supplied to the sanitary wares for flushing. When the water sealing member 200 moves upwardly, the pressure cavity 140 is reduced, and the water in the pressure cavity 140 is discharged from the water inlet cavity 110 through the water passing grooves 410 and the water passage 210. Figure 2 As shown, when it is necessary to flush the sanitary wares, the water sealing member 200 is pushed by an external force to move upwardly away from the communication opening 130, the communication opening 130 is opened, and the water in the water inlet cavity 110 flows to the water outlet cavity 120 through the communication opening 130, and then is supplied to the sanitary wares for flushing. When the water sealing member 200 moves upwardly, the pressure cavity 140 is reduced, and the water in the pressure cavity 140 is discharged from the water inlet cavity 110 through the water passing grooves 410 and the water passage 210. Figure 3As shown, cancel the external force applied to the water sealing element 200, the water sealing element 200 gradually down under its own gravity. At this time the pressure chamber 140 gradually becomes larger, water through the water passage 210 into the pressure chamber 140, the water in the pressure chamber 140 on the water sealing element 200 exert a downward force, the water sealing element 200 will accelerate the decline. When the water sealing element 200 close to the communication port 130, the water inlet chamber 110 to the water outlet chamber 120 through the water gradually decreased, the water pressure in the water inlet chamber 110 gradually rises. The flexible sealing ring 400 with the water pressure in the water inlet chamber 110 rises and elastic deformation, the water through the water groove 410 of the water cross section decreases, resulting in from the water inlet chamber 110 through the water groove 410 into the water passage 210 of the water volume decreases, the water sealing element 200 down speed relatively slow. The water pressure in the water inlet chamber 110 adaptively attenuates the pressure of the flexible sealing ring 400, the flexible sealing ring 400 through the elastic deformation of the water through the water groove 410 of the water cross section real-time adaptation to the current water pressure, forms a pressure adaptive throttle damping, the flow attenuation rate and water hammer pressure strength automatic matching, effectively suppress the harmonic superposition of pressure shock, so as to realize the effect of low water hammer in the process of plugging the communication port 130.

[0041] Wherein, the valve needle 300 can be set relative to the water passage 210 is fixed. The pressure chamber 140 and the water inlet chamber 110 through the water passage 210 and the water through the groove 410 for communication. In this embodiment, the valve needle 300 relative to the water passage 210 is movable. The valve needle 300 is provided in the water passage 210, the valve needle 300 moves up and down along the water passage 210. The valve needle 300 includes a first end 310 and a second end 320. The first end 310 extends downward into the water inlet chamber 110. The flexible sealing ring 400 is sleeved on the first end 310. When the water sealing element 200 moves up and away from the communication port 130, the water in the pressure chamber 140 is discharged downward to the water inlet chamber 110 through the water passage 210. The water in the water passage 210 impacts on the flexible sealing ring 400 or the valve needle 300, pushes the valve needle 300 downward, and the flexible sealing ring 400 moves away from the lower end of the water passage 210, so that the water discharge flow of the water passage 210 reaches the maximum, which can rapidly discharge the water in the pressure chamber 140 to the water inlet chamber 110 through the water passage 210 when pushing the water sealing element 200, quickly opens the communication port 130, and realizes the performance of large flow instantaneous flushing. When the water sealing element 200 moves down and resets, the valve needle 300 moves up and resets, and the flexible sealing ring 400 gradually approaches the lower end of the water passage 210. The water first flows from the water inlet chamber 110 into the pressure chamber 140 through the water passage 210, and then flows into the pressure chamber 140 through the water passage 210. After the flexible sealing ring 400 abuts against the lower end of the water passage 210, the water pressure acts on the flexible sealing ring 400 and the valve needle 300, so that the flexible sealing ring 400 elastically deforms according to the water pressure in the water inlet chamber 110.

[0042] Furthermore, such as Figure 1 and Figure 5 As shown, a first elastic element 500 is provided between the valve needle 300 and the water passage 210. The first elastic element 500 can be a spring. The first elastic element 500 is sleeved on the valve needle 300, with one end abutting against the water passage 210 and the other end abutting against the valve needle 300. The first elastic element 500 applies an elastic force to the valve needle 300, causing the valve needle 300 to move towards the pressure chamber 140. That is, the first elastic element 500 drives the valve needle 300 to move upward and reset, causing the flexible sealing ring 400 to move towards the water passage 210.

[0043] Based on the above embodiment, the second end 320 extends into the pressure chamber 140. When the water sealing element 200 moves in the direction of shrinking of the pressure chamber 140, the second end 320 can abut against the inner wall of the housing 100. As the water sealing element 200 continues to move upward, the valve needle 300 is pushed relative to the water passage 210 towards the water inlet chamber 110 by the abutment action of the inner wall of the housing 100 and the second end 320. The first end 310 of the valve needle 300 drives the flexible sealing ring 400 away from the end of the water passage 210.

[0044] In one embodiment, such as Figure 6 As shown, the upper surface of the flexible sealing ring 400 has an upwardly protruding flange 420. The flange 420 extends circumferentially along the flexible sealing ring 400 and is annular. The flange 420 faces the water passage 210 and can abut against the end of the water passage 210. A water groove 410 is formed radially on the flange 420 along the flexible sealing ring 400. When water flows through the water groove 410, it exerts a shearing effect on the water groove 410, which can effectively peel off attached impurities and avoid the problem of impurities clogging the water groove 410 after long-term use, causing functional failure or performance degradation.

[0045] Under water pressure, the flexible sealing ring 400 is pressed against the lower outer wall of the water passage 210, causing significant elastic deformation at the protruding edge 420, thereby changing the cross-sectional area of ​​the water passage groove 410. The water passage groove 410 can be configured with a V-shaped opening, with the V-shaped opening facing the end of the water passage 210. When the protruding edge 420 elastically deforms, the V-shaped water passage groove 410 expands and contracts, thus changing the cross-sectional area of ​​the water passage.

[0046] In one embodiment, such as Figure 1As shown, the second elastic member 600 is arranged in the pressure cavity 140. The second elastic member 600 can be a spring. One end of the second elastic member 600 abuts against the water sealing member 200, and the other end abuts against the inner wall of the shell 100. The second elastic member 600 exerts an elastic force on the water sealing member 200, so as to move the water sealing member 200 to the direction of blocking the communicating opening 130. A movable push rod 700 is further arranged on the shell 100, and the push rod 700 can be inserted out of the shell 100. The push rod 700 is towards the water sealing member 200. When the push rod 700 moves to the water sealing member 200, the push rod 700 can abut against the water sealing member 200, and the push rod 700 pushes the water sealing member 200 to the direction of opening the communicating opening 130. The water sealing member 200 moves upward, and the second elastic member 600 is compressed and deformed elastically. After the push rod 700 is released, the water sealing member 200 moves downward and resets under the action of the gravity and the second elastic member 600.

[0047] In the embodiment, the water passing channel 210 can be directly formed on the water sealing member 200. Alternatively, as shown in FIG. 6, the water passing channel 210 can be formed in the push rod 700. Figure 1 Figure 5 As shown, the water sealing member 200 is provided with a through hole 220. A water passing pipe 230 is detachably arranged on the through hole 220. The water passing pipe 230 can be fixedly inserted in the through hole 220 by a buckling mode. The water passing pipe 230 is internally formed with the water passing channel 210. That is, the valve needle 300 and the first elastic member 500 are integrally arranged on the water passing pipe 230, and then the water passing pipe 230 is directly arranged on the through hole 220, so as to facilitate the installation operation of the valve needle 300 and the first elastic member 500.

[0048] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0049] In addition, the terms "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise specifically limited.

[0050] ​In the utility model, unless another definite provision and limitation, the term " install ", " link ", " connect ", " fixed " and so on term should do broad sense understanding, for example, can be fixed connection, also can be detachable connection, or be integrated; can be mechanical connection, also can be electrical connection; can be direct connection, also can be indirectly connected through intermediate medium, can be two element internal communication or two element's mutual action relationship. For ordinary skilled person in the art, can understand the concrete meaning of above-mentioned term in the utility model according to specific circumstances.

[0051] In the utility model, unless another definite provision and limitation, first feature is " on " or " under " second feature can include that first and second features are in direct contact, also can include that first and second features are not in direct contact but contact through another feature between them. Moreover, first feature " on ", " above " and " on " second feature includes that first feature is directly above and obliquely above second feature, or just indicates that the horizontal height of first feature is higher than second feature. First feature " under ", " below " and " under " second feature includes that first feature is directly below and obliquely below second feature, or just indicates that the horizontal height of first feature is less than second feature.

[0052] In the description of the specification, the description of reference terms " some specific embodiments " and the like means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are contained in at least one embodiment or example of the utility model. In the specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0053] Although the embodiments of the utility model have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and purposes of the utility model, and the scope of the utility model is defined by the claims and its equivalents.

Claims

1. A time delay valve characterized by, The utility model relates to a water valve, which comprises: a housing (100) comprising a water inlet cavity (110) and a water outlet cavity (120), and a communication port (130) being arranged between the water inlet cavity (110) and the water outlet cavity (120); a water sealing member (200) being movably arranged in the housing (100) to control the opening and closing of the communication port (130), and the water sealing member (200) and the housing (100) defining a pressure cavity (140) inside, and the water sealing member (200) being provided with a water passing channel (210) capable of connecting the pressure cavity (140) and the water inlet cavity (110); a valve needle (300) being arranged in the water passing channel (210); a flexible sealing ring (400) being arranged on the valve needle (300) and capable of abutting against the end of the water passing channel (210) close to the water inlet cavity (110), and the flexible sealing ring (400) and the water passing channel (210) defining a water passing groove (410) therebetween, and the flexible sealing ring (400) being elastically deformed with the change of the water pressure of the water inlet cavity (110) so that the water passing cross-sectional area of the water passing groove (410) becomes smaller when the pressure of the water inlet cavity (110) becomes larger.

2. The time delay valve of claim 1, wherein: The valve needle (300) is movably arranged in the water passing channel (210), and the valve needle (300) comprises a first end (310) and a second end (320), the first end (310) extends into the water inlet cavity (110), and the flexible sealing ring (400) is sleeved on the first end (310), and the flexible sealing ring (400) moves away from or abuts against the end of the water passing channel (210) close to the water inlet cavity (110) along with the movement of the valve needle (300).

3. The time delay valve of claim 2, wherein: A first elastic member (500) is arranged between the valve needle (300) and the water passing channel (210), and the first elastic member (500) exerts an elastic force on the valve needle (300) to move the valve needle (300) towards the pressure cavity (140).

4. The time delay valve of claim 2, wherein: The flexible sealing ring (400) is provided with at least two water passing grooves (410) which are distributed along the circumference of the flexible sealing ring (400) in sequence.

5. The time delay valve of claim 2 or 3, wherein: The second end (320) extends into the pressure cavity (140), and when the water sealing member (200) moves towards the direction of the pressure cavity (140) being reduced, the second end (320) can abut against the inner wall of the housing (100) to push the valve needle (300) towards the water inlet cavity (110) relative to the water passing channel (210).

6. The delay valve according to any one of claims 1 to 4, characterized in that: One end surface of the flexible sealing ring (400) is provided with a convex edge (420) extending along the circumference of the flexible sealing ring (400), the convex edge (420) can abut against the end of the water passing channel (210), and the water passing groove (410) is arranged on the convex edge (420) along the radial direction of the flexible sealing ring (400).

7. The time delay valve of claim 1, wherein: The water passing groove (410) is a V-shaped opening towards the end of the water passing channel (210).

8. The time delay valve of claim 1, wherein: The pressure cavity (140) is provided with a second elastic member (600), which applies an elastic force to the water sealing member (200) to move in a direction to seal the communication opening (130). The shell (100) is further provided with a movable push rod (700), which can push the water sealing member (200) in a direction to open the communication opening (130).

9. The delay valve according to any one of claims 1 to 4, characterized in that: The water sealing member (200) is provided with a through hole (220), and a water passing pipe (230) is detachably installed on the through hole (220). The water passing pipe (230) forms the water passing channel (210) inside.

10. A sanitary ware, characterised in that: The time delay valve comprises the time delay valve according to any one of claims 1 to 9.

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