Bistable pulse valve with noise reduction capability

Abstract

The bistable pulse valve with the noise reduction capacity comprises a valve shell, a flushing water flow channel is arranged in the valve shell, and the flushing water flow channel comprises a water inlet channel, a backpressure cavity, a first water outlet channel and a second water outlet channel which are sequentially communicated in the water flow direction, and the first water outlet channel and the second water outlet channel are arranged in parallel. The first pressure relief assembly is connected with the back pressure cavity; a sealing upper cover assembly is fixedly arranged at the top of the valve shell, the sealing upper cover assembly is provided with a pressure relief cavity, and the pressure relief cavity is provided with a first opening communicated with the flushing water flow channel and a second opening communicated with the outside; when the filtering and noise reduction piece blocks the first opening, water flow impacts the inserting part of the filtering and noise reduction piece when flowing from the first water outlet channel to the second water outlet channel, kinetic energy of the water flow is converted into internal energy through the noise reduction holes, sound energy is reduced, and therefore the noise reduction effect is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to pulse valve technical field, concretely relates to a bistable pulse valve with noise reduction capacity. BACKGROUND

[0002] The pulse valve is a device for controlling water flow, which is widely used in intelligent toilet and pulse toilet and other bathroom equipment. The pulse valve is a device for controlling water flow, which is widely used in intelligent toilet and pulse toilet and other bathroom equipment. The pulse valve can accurately control the opening and closing time of water flow, thereby realizing accurate control of water consumption and making the flushing volume stable and efficient.

[0003] The flushing water flow channel of the pulse valve is designed in a U shape. The flushing water flow channel penetrates the valve shell in the same direction and forms an inlet channel and an outlet channel. This facilitates the installation and use of external inlet and outlet pipes. However, when water flows rapidly through the bend, a strong impact force is generated. This impact force not only produces mechanical vibration but also forms turbulence and vortex in the fluid, further exacerbating noise. This noise affects the user experience, especially when the pulse valve is installed near the bedroom or used at night, producing a large amount of noise that can disturb people's sleep and have adverse effects on physical and mental health in the long run. SUMMARY

[0004] In view of the deficiencies in the prior art, the utility model aims to provide a bistable pulse valve with noise reduction capacity to solve the problems mentioned in the background section.

[0005] The utility model achieves the following technical solutions:

[0006] A bistable pulse valve with noise reduction capacity, comprising a valve shell, a flushing water flow channel is provided in the valve shell, the flushing water flow channel includes an inlet channel, a back pressure cavity, a first outlet channel and a second outlet channel arranged in parallel, which are connected in sequence according to the water flow direction; further comprising a first pressure relief assembly, the first pressure relief assembly is connected with the back pressure cavity; a sealing upper cover assembly is fixedly arranged on the top of the valve shell, the sealing upper cover assembly is provided with a pressure relief chamber, the pressure relief chamber is provided with a first opening in communication with the flushing water flow channel, and a second opening in communication with the outside; further comprising a filter sound absorbing piece, the lower end of the filter sound absorbing piece is provided with a plug-in part embedded in the first outlet channel, the plug-in part is provided with a plurality of sound absorbing holes arranged through, and the filter sound absorbing piece can be lifted and moved between the position of blocking the first opening and the first outlet channel.

[0007] Further, the sound absorbing holes are circular, and the diameter of the sound absorbing holes is 0.75mm±0.25mm.

[0008] Further, the distance between two adjacent sound holes is 3.5mm±0.5mm.

[0009] Further, the plug-in part is filled with sponge.

[0010] Further, the filter silencer is provided with a step part at the upper end of the plug-in part, and an upper rubber pad is sleeved on the upper end of the step part, which is used for sealing and abutting against the first opening.

[0011] Further, the first pressure relief assembly comprises an electromagnetic valve core, a mounting cover for blocking the opening of the valve shell, an elastic sealing piece for blocking the back pressure cavity, a sealing support for supporting the elastic sealing piece, a first spring arranged between the mounting cover and the sealing support, the mounting cover is provided with a pressure relief channel and a drainage flow channel which are in communication with each other, the pressure relief channel is communicated with the back pressure cavity by moving the elastic sealing piece, the drainage flow channel is communicated with the second water outlet channel, and the electromagnetic valve core is used for blocking the opening of the pressure relief channel.

[0012] Further, the second pressure relief assembly further comprises a first housing and a second housing which are sealedly connected with each other, the first housing is provided with a transition chamber which is communicated with the pressure relief chamber and the clean water flow channel, the second pressure relief assembly further comprises a sealing rod which is provided with a sealing plate which can move in the transition chamber, the second pressure relief assembly further comprises a second spring which is arranged between the sealing plate and the second housing, the second pressure relief assembly further comprises a water outlet part which is provided with a clean water outlet which is connected with the transition chamber, and the second pressure relief assembly further comprises a blocking piece which is arranged in the transition chamber and can move up and down between the positions of blocking the pressure relief chamber and the clean water outlet.

[0013] The utility model discloses a beneficial effect is: a kind of bi-stable pulse valve with noise reduction ability, including valve shell, flush water flow passage is equipped in the valve shell, flush water flow passage includes water inlet channel, back pressure chamber, first water outlet channel and second water outlet channel that are sequentially communicated according to water flow direction, it further include first pressure relief assembly, first pressure relief assembly is connected with back pressure chamber;The top of valve shell is fixed with sealing upper cover assembly, sealing upper cover assembly is equipped with pressure relief chamber, the first opening of pressure relief chamber is equipped with the communication of flush water flow passage, and second opening is communicated with outside;It further include filter sound-absorbing part, the lower end of filter sound-absorbing part is equipped with the plug-in part of embedding first water outlet channel, the plug-in part is equipped with the multiple sound-absorbing holes of through arrangement, filter sound-absorbing part can be lifted and moved between the position of blocking first opening and first water outlet channel, when filter sound-absorbing part blocks first opening, water flow is impacted plug-in part of filter sound-absorbing part when flowing from first water outlet channel to second water outlet channel, at this time sound-absorbing hole can divide water flow into a large number of small flow bundle, when these small flow bundle passes a small distance, they will converge into main flow bundle with lower speed, larger area, in this process, kinetic energy of water flow is converted into internal energy, cause sound energy to reduce, to realize the effect of sound-absorbing and noise reduction. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the perspective drawing of the utility model.

[0015] Figure 2 It is the explosion drawing of the utility model.

[0016] Figure 3 It is the plan view of the utility model.

[0017] Figure 4 It is Figure 3 It is the section view of A-A direction.

[0018] Figure 5 It is Figure 3 It is the section view of B-B direction.

[0019] Figure 6 It is Figure 3 It is the section view of C-C direction.

[0020] Figure 7 It is the perspective drawing of filter sound-absorbing part of the utility model.

[0021] Figure 8 It is the perspective drawing of second pressure relief assembly of the utility model.

[0022] Figure 9 It is another perspective drawing of second pressure relief assembly of the utility model.

[0023] Among them, the above drawing includes following figure marks:

[0024] 1, valve housing; 11, water inlet channel; 12, back pressure cavity; 13, first water outlet channel; 14, second water outlet channel; 15, clean water flow channel; 2, first pressure relief assembly; 21, electromagnetic valve core; 22, mounting cover; 221, pressure relief channel; 222, drainage flow channel; 23, elastic sealing element; 24, sealing support; 25, first spring; 3, sealing upper cover assembly; 31, pressure relief chamber; 32, first opening; 33, second opening; 4, filter silencer; 41, plug-in part; 411, silencing hole; 42, upper rubber pad; 5, second pressure relief assembly; 51, first housing; 511, transition chamber; 512, protruding part; 52, second housing; 53, sealing rod; 531, sealing plate; 54, second spring; 55, water outlet element; 551, clean water outlet; 56, plugging element. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the embodiments of the present application will be described clearly and completely below in combination with the drawings of the embodiments of the present application. It should be noted that the description of the embodiments is used to help understanding of the present application, but does not constitute limitation of the present application. In addition, the technical features involved in each of the embodiments of the present application described below can be combined with each other as long as they do not conflict with each other.

[0026] Referring to Figures 1 to 9 As shown in the figure, a bistable pulse valve with noise reduction capability comprises a valve housing 1, a flushing water flow channel is arranged in the valve housing 1, the flushing water flow channel comprises a water inlet channel 11, a back pressure cavity 12, a first water outlet channel 13 and a second water outlet channel 14 arranged in parallel and communicated in sequence in the water flow direction; further comprising a first pressure relief assembly 2 connected with the back pressure cavity 12; a sealing upper cover assembly 3 is fixedly arranged at the top of the valve housing 1, the sealing upper cover assembly 3 is provided with a pressure relief chamber 31, the pressure relief chamber 31 is provided with a first opening 32 communicated with the flushing water flow channel, and a second opening 33 communicated with the outside; further comprising a filter silencer 4, the lower end of the filter silencer 4 is provided with a plug-in part 41 embedded in the first water outlet channel 13, the plug-in part 41 is provided with a plurality of silencing holes 411 arranged through, and the filter silencer 4 can be lifted and moved between the position of plugging the first opening 32 and the first water outlet channel 13.

[0027] When the flush valve is out of water, the filter silencer 4 needs to be moved to block the first opening 32. When the water flow flows from the first water outlet channel 13 to the second water outlet channel 14, it will impact the plug-in part 41 of the filter silencer 4. At this time, the sound reduction hole 411 can divide the water flow into a large number of small flow bundles. When these small flow bundles pass a small distance, they will converge into a main flow bundle with lower speed and larger area. In this process, the kinetic energy of the water flow is converted into internal energy, resulting in a decrease in sound energy, thereby achieving the effect of sound reduction.

[0028] The sound reduction hole 411 is circular, and the diameter of the sound reduction hole 411 is 0.75mm±0.25mm. By setting the sound reduction hole 411 to meet the above size, it is ensured that the water flow can be divided into small enough flow bundles, thereby ensuring the noise reduction effect.

[0029] The distance between two adjacent sound reduction holes 411 is 3.5mm±0.5mm, which ensures that the water flow can be divided into enough flow bundles, thereby ensuring the noise reduction effect.

[0030] The plug-in part 41 is filled with sponge. The sponge can be used to filter impurities in water, and can further reduce the flow rate of water flow, thereby further improving the noise reduction effect.

[0031] The filter silencer 4 is provided with a stepped portion at the upper end of the plug-in part 41. The upper end of the stepped portion is sleeved with an upper rubber pad 42, which is used to seal and abut the first opening 32.

[0032] The first pressure relief assembly 2 includes an electromagnetic valve core 21, a mounting cover 22 for blocking the opening of the valve housing 1, an elastic sealing member 23 for blocking the back pressure cavity 12, a sealing support 24 for supporting the elastic sealing member 23, a first spring 25 arranged between the mounting cover 22 and the sealing support 24, the mounting cover 22 is provided with a pressure relief channel 221 and a drainage flow channel 222 which are in communication with each other, the pressure relief channel 221 is communicated with the back pressure cavity 12 by moving the elastic sealing member 23, the drainage flow channel 222 is communicated with the second water outlet channel 14, and the electromagnetic valve core 21 is used to block the opening of the pressure relief channel 221.

[0033] When water is needed, the output end of the electromagnetic valve core 21 is moved and offset from the pressure relief channel 221. The water flow pushes the elastic sealing member 23 to deform and relieve the back pressure cavity 12. At this time, the water flow can flow into the first water outlet channel 13 from the water inlet channel 11, and push the filter silencer to make the upper rubber pad 42 abut the first opening 32. Then the water flow flows out through the second water outlet channel 14.

[0034] When water is not needed, the output end of the electromagnetic valve core 21 is moved and blocks the pressure relief channel 221, the water flow converges into the back pressure chamber 12, and pushes the elastic sealing piece 23 to block the first water outlet channel 13, at this time, the flushing water flow channel is blocked, so that a certain negative pressure is generated, and the filtering and silencing piece 4 automatically falls under the action of gravity; the outside air enters from the second inlet opening 33. If the sewage in the second water outlet channel 14 flows back, it will be blocked by the step part of the filtering and silencing piece 4, thereby avoiding the sewage from flowing back to the first water outlet channel 13 and avoiding the sewage from flowing back.

[0035] The second pressure relief assembly 5 is further included, the valve housing 1 is further provided with a clean water flow channel 15, the second pressure relief assembly 5 comprises a first shell 51 and a second shell 52 which are sealedly connected with each other, the first shell 51 is provided with a transition chamber 511 which is communicated with the pressure relief chamber 31 and the clean water flow channel 15, the second pressure relief assembly 5 further comprises a sealing rod 53, the sealing rod 53 is provided with a sealing plate 531 which can move in the transition chamber 511, the second pressure relief assembly 5 further comprises a second spring 54, the second spring 54 is arranged between the sealing plate 531 and the second shell 52, the second pressure relief assembly 5 further comprises a water outlet piece 55, the water outlet piece 55 is provided with a clean water outlet 551 which is connected with the transition chamber 511, and the second pressure relief assembly 5 further comprises a blocking piece 56 which is arranged in the transition chamber 511 and can move up and down between a position of blocking the pressure relief chamber 31 and a position of blocking the clean water outlet 551.

[0036] Specifically, when clean water flow is needed to be used for cleaning a human body part (for example, when washing buttocks after defecation), in order to ensure that the water is clean, water can be supplied through the clean water flow channel 15, the first shell 51 is provided with a protruding part 512, so that the transition chamber 511 is always kept communicated with the pressure relief chamber 31 and the clean water flow channel 15, when clean water is needed to be used, the blocking piece 56 rises and blocks the pressure relief chamber 31 under the impact of water flow, the water flow can flow out through the clean water outlet 551, and during the water use process, the water impacts the sealing plate 531 to achieve a pressure reduction effect. When clean water is not needed to be used, the blocking piece 56 automatically falls down under the action of gravity, and the outside air enters from the second inlet opening 33, so that the blocking piece 56 blocks the clean water outlet 551.

[0037] In summary, through the structural design of the first pressure relief assembly 2, the sealing upper cover assembly 3, the filtering and silencing piece 4 and the second pressure relief assembly 5, the generation of noise during the use of the pulse valve is reduced, and the flushing water flow rate and the flushing water flow are stably controlled.

[0038] In the description of the utility model, need understanding is, the term "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom" "internal", "external", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and so on indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawing, just for the convenience of describing the utility model and simplifying the description, and not indicate or imply the device or element indicated must have a particular orientation, construct and operate in a particular orientation, therefore can not be understood as the limitation of the utility model.

[0039] In the description of the utility model, the terms "first", "second" are only for the purpose of description, and can not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include one or more features.

[0040] The above only is the preferred implementation way of the utility model, and does not limit the utility model, and the utility model can have various changes and changes for the person skilled in the art. Any modification, equivalent replacement, improvement etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A bistable pulse valve having noise reduction capability, characterized by: The valve housing (1) is provided with a flushing water flow channel, which comprises a water inlet channel (11), a back pressure cavity (12), a first water outlet channel (13) and a second water outlet channel (14) arranged in parallel; A first pressure relief assembly (2) is connected with the back pressure cavity (12); A sealing upper cover assembly (3) is fixed on the top of the valve housing (1), which is provided with a pressure relief chamber (31) with a first opening (32) communicating with the flushing water flow channel and a second opening (33) communicating with the outside; A filter silencer (4) is also provided, which is provided with a plug-in part (41) embedded in the first water outlet channel (13), and a plurality of sound reduction holes (411) are arranged through the plug-in part (41), and the filter silencer (4) can be lifted and moved between the positions of blocking the first opening (32) and the first water outlet channel (13).

2. A bistable pulse valve with noise reduction capability according to claim 1, characterized in that: The sound reduction holes (411) are circular, and the diameter of the sound reduction holes (411) is 0.75mm±0.25mm.

3. A bistable pulse valve with noise reduction capability according to claim 1, characterized in that: The distance between two adjacent sound reduction holes (411) is 3.5mm±0.5mm.

4. The bi-stable pulse valve with noise reduction capability of claim 1, wherein: The plug-in part (41) is filled with sponge.

5. The bi-stable pulse valve with noise reduction capability of claim 1, wherein: The filter silencer (4) is provided with a stepped part at the upper end of the plug-in part (41), and an upper rubber pad (42) is sleeved on the upper end of the stepped part, which is used for sealing and abutting the first opening (32).

6. The bi-stable pulse valve with noise reduction capability of claim 1, wherein: The first pressure relief assembly (2) comprises an electromagnetic valve core (21), a mounting cover (22) for blocking the opening of the valve housing (1), an elastic sealing member (23) for blocking the back pressure cavity (12), a sealing support (24) for supporting the elastic sealing member (23), a first spring (25) arranged between the mounting cover (22) and the sealing support (24), the mounting cover (22) is provided with a pressure relief channel (221) and a drainage flow channel (222) which are in communication with each other, the pressure relief channel (221) is communicated with the back pressure cavity (12) by moving the elastic sealing member (23), the drainage flow channel (222) is communicated with the second water outlet channel (14), and the electromagnetic valve core (21) is used for blocking the opening of the pressure relief channel (221).

7. The bi-stable pulse valve with noise reduction capability of claim 1, wherein: The valve housing (1) is further provided with a clean water flow channel (15), and the second pressure relief assembly (5) comprises a first shell (51) and a second shell (52) which are sealedly connected with each other, the first shell (51) is provided with a transition chamber (511) which is communicated with the pressure relief chamber (31) and the clean water flow channel (15), the second pressure relief assembly (5) further comprises a sealing rod (53) which is provided with a sealing plate (531) which is movable in the transition chamber (511), the second pressure relief assembly (5) further comprises a second spring (54) which is arranged between the sealing plate (531) and the second shell (52), the second pressure relief assembly (5) further comprises a water outlet member (55) which is provided with a clean water outlet (551) which is connected with the transition chamber (511), and the second pressure relief assembly (5) further comprises a blocking member (56) which is arranged in the transition chamber (511) and is movable up and down between a position of blocking the pressure relief chamber (31) and the clean water outlet (551).

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