Constant flow water valve

Abstract

A valve body is provided with a water inlet and a water outlet, a first water path communicated with the water inlet and the water outlet is arranged in the valve body, a first water-saving piece is arranged in the first water path, and a second water path communicated with the water inlet and the water outlet is further arranged in the valve body. A second water-saving piece is arranged in the second water way. The water-saving valve further comprises a valve element mechanism which is installed on the valve body and used for selectively opening or closing the second water way. Meanwhile, the first water path and the second water path are arranged, the first water path is in a normally open state, the second water path can be selectively closed when a small pipeline uses water, and the second water path can be opened when a large pipeline uses water to increase the water outlet flow, so that the advantage that the pipeline flow is controlled to be stable is achieved; and the water-saving effect in a large-pipeline water using scene is also remarkable.

Description

TECHNICAL FIELD

[0001] The utility model relates to a constant flow water valve. BACKGROUND

[0002] The throttle valve or constant flow valve (throttle or constant flow device) is not rare in daily life, and is used for saving water, especially in the small pipeline water scene, and the water saving effect is remarkable, but in the large pipeline water scene, the water flow fluctuates greatly following the water pressure fluctuation, so that the function of the rear-end product is affected, and even water is wasted, for example, when the flushing valve connected at the rear end of the large pipeline directly flushes the toilet or squatting pan, the water output follows the water pressure drop, which not only fails to achieve the flushing effect, but also increases the water usage by prolonging the flushing time. SUMMARY

[0003] The utility model provides a constant flow water valve, and the water saving effect is remarkable in the small pipeline water scene, and the water saving effect is also remarkable in the large pipeline water scene. The utility model adopts the technical scheme to solve the technical problem:

[0004] The constant flow water valve comprises a valve body, the valve body is provided with a water inlet and a water outlet, a first water path communicating the water inlet and the water outlet is arranged in the valve body, a first water saving piece is arranged in the first water path, characterized in that: a second water path communicating the water inlet and the water outlet is further arranged in the valve body, a second water saving piece is arranged in the second water path, and a valve core mechanism for selecting to open or close the second water path is arranged on the valve body.

[0005] In a preferred embodiment: the valve body is provided with a water inlet cavity, a water outlet cavity and an adjusting cavity, the water inlet is the inlet of the water inlet cavity, the water outlet is the outlet of the water outlet cavity, at least one first channel is arranged on the cavity wall between the water inlet cavity and the water outlet cavity, the first water path passes through the first channel from the water inlet cavity to the water outlet cavity, and the first water saving piece is arranged in the first channel; at least one second channel is arranged on the cavity wall between the water inlet cavity and the adjusting cavity, at least one third channel is arranged on the cavity wall between the adjusting cavity and the water outlet cavity, and the second water path passes through the second channel from the water inlet cavity to the adjusting cavity, and then passes through the third channel from the adjusting cavity to the water outlet cavity.

[0006] In a preferred embodiment: the second channel is provided with the second water saving piece.

[0007] In a preferred embodiment: the second water saving piece is arranged on the water path from the second channel to the third channel.

[0008] In a preferred embodiment, the adjusting cavity is provided with an opening, the valve core mechanism comprises an adjusting rod and a water blocking member, the water blocking member is arranged in the adjusting cavity for controlling the opening and closing of the second channel or the third channel, the inner end of the adjusting rod is connected with the water blocking member, and the outer end of the adjusting rod extends out of the opening of the adjusting cavity.

[0009] In a preferred embodiment, the second channel is provided with the second water saving piece on the water path to the third channel.

[0010] In a preferred embodiment, the water blocking member is rotatably arranged in the adjusting cavity, the water blocking member is provided with a water passing channel, the water outlet of the water passing channel is communicated with the third channel, the water inlet of the water passing channel is arranged corresponding to the second channel, and the adjusting rod drives the water blocking member to rotate in a process of selecting the water inlet of the water passing channel to abut against the second channel or the water blocking member to block the second channel.

[0011] In a preferred embodiment, the water blocking member is provided with the second water saving piece in the water passing channel.

[0012] In a preferred embodiment, the valve core mechanism further comprises a rubber pad arranged in the adjusting cavity, and the rubber pad is clamped and fixed between the opening edge of the second channel and the water blocking member.

[0013] In a preferred embodiment, the rubber pad is also clamped and fixed between the opening edge of the third channel and the water blocking member, and in a preferred embodiment, the water blocking member is generally in a conical rotary body structure, has a cavity as the water passing channel in the inside, the water outlet of the water passing channel is arranged at the top end and abuts against the third channel, the water inlet of the water passing channel is arranged on the conical surface, and the adjusting rod is inserted into the bottom end of the water blocking member.

[0014] In a preferred embodiment, the second channel is three, the water inlet of the water passing channel is three, and in a process of rotating the water blocking member, one or two or three of the second channels are selected to be closed, or the three second channels are selected to be simultaneously opened.

[0015] In a preferred embodiment, the valve core mechanism further comprises an end cover and a wrench, the end cover is connected to the opening of the adjusting cavity so as to limit the adjusting rod and the water blocking member, and the wrench is sleeved on the adjusting rod from the outer end of the adjusting rod.

[0016] In a preferred embodiment, the water blocking member is a plug rubber pad arranged corresponding to the third channel, the adjusting rod drives the plug rubber pad to move linearly towards the third channel so as to gradually close the third channel, or to move linearly away from the third channel so as to gradually open the third channel.

[0017] Compared with the background art, the technical scheme has the following advantages:

[0018] 1. The first waterway and the second waterway are simultaneously arranged, the first waterway is in a normal open state, the second waterway can be selected to be closed when small pipe water is used, and the second waterway can be opened to increase the water flow when large pipe water is used, so that the pipe flow is stable, and the water saving effect is remarkable not only in the small pipe water scene, but also in the large pipe water scene.

[0019] 2. The first waterway and the second waterway are formed by the division of the water inlet cavity, the water outlet cavity and the adjusting cavity, and the installation of the water saving piece is convenient, and the structure is very simple.

[0020] 3. The water stopping piece can be controlled to open or close the second waterway by manually operating the adjusting rod, and the operation is simple.

[0021] 4. The working mode of the water stopping piece rotating is not only stable and reliable, but also when the number of the second channels is large, whether to block the second channels and the number of the channels to be blocked in the blocking case can be selected, so that multi-gear flow control can be realized, the application scene is wider, and the water saving effect is better.

[0022] 5. The adjusting rod drives the plug rubber pad to move linearly, so that the opening degree of the third channel can be selected, and stepless adjustment is realized. BRIEF DESCRIPTION OF DRAWINGS

[0023] The utility model will be further described in connection with the drawings and embodiments.

[0024] Figure 1 A sectional view of the constant flow valve is shown.

[0025] Figure 2 A perspective exploded view of the constant flow valve is shown.

[0026] Figure 3 A sectional view of the valve body of the constant flow valve is shown.

[0027] Figure 4 A perspective view of the valve body of the constant flow valve is shown.

[0028] Figure 5 A perspective view of the water stopping piece of the constant flow valve is shown.

[0029] Figure 6 A perspective view of the rubber pad of the constant flow valve is shown.

[0030] Figure 7 A structural deformation view of the constant flow valve is shown. DETAILED DESCRIPTION

[0031] Please refer to Figures 1 to 6The constant flow valve comprises a valve body 10 provided with a water inlet and a water outlet, a first water channel 11 and a second water channel 12 are arranged in the valve body 10 and connected with the water inlet and the water outlet, so that the water flow can be divided into two paths after entering the valve body, one path can flow through the valve body by the first water channel 11, and the other path can flow through the valve body by the second water channel 12. The first water channel 11 is provided with a first water-saving piece 20, and the first water-saving piece 20 generates a throttling effect on the first water channel 11; the second water channel 12 is provided with a second water-saving piece 30, and the second water-saving piece 30 generates a throttling effect on the second water channel 12. The constant flow valve further comprises a valve core mechanism 40 installed on the valve body 10 and used for selecting to open or close the second water channel 12, so that the first water channel 11 is always open, and the second water channel 12 can be controlled to be closed or opened by the valve core mechanism 40, and closing means that the second water channel 12 is blocked, and the water flow can only be output by the first water channel 11, and opening means that the second water channel 12 is opened, and the water flow can also be output from the second water channel 12, so that whether the opening degree is large or small is regarded as opening. Therefore, if the small pipe saves water, the constant flow valve can close the second water channel 12, and if the large pipe saves water, the constant flow valve can open the second water channel 12, and can decide to partially open or completely open according to the requirement.

[0032] It can be understood that reducing the water flow of the constant flow valve by closing the second water channel 12 is suitable for the requirement of the small pipe water scene, and opening the second water channel 12 can increase the water flow of the constant flow valve and meet the requirement of the large pipe water scene, and the two water channels arranged in one valve body can meet the requirement of the small pipe water scene and the requirement of the large pipe water scene, and the constant flow effect is always maintained, so that the valve core mechanism 40 can only control the on-off of the second water channel 12, and further controlling the opening degree in the opened state of the second water channel 12 is better, so that the mechanism capable of controlling the opening and closing of the water channel can be used as the valve core mechanism 40.

[0033] Preferably, the valve body 10 is provided with a water inlet cavity 13, a water outlet cavity 14 and a regulating cavity 15, the water inlet is the inlet of the water inlet cavity, the water outlet is the outlet of the water outlet cavity, and the regulating cavity also has an open mouth. The cavity wall between the water inlet cavity 13 and the water outlet cavity 14 is provided with at least one first channel 16, the first waterway 11 passes through the first channel 16 from the water inlet cavity 13 to the water outlet cavity 14, and the first channel 16 is provided with the first water-saving piece 20, and the number of first channels 16 in this embodiment is three. The cavity wall between the water inlet cavity 13 and the regulating cavity 15 is provided with at least one second channel 17, the cavity wall between the regulating cavity 15 and the water outlet cavity 14 is provided with at least one third channel 18, the second waterway 12 passes through the second channel 17 from the water inlet cavity 13 to the regulating cavity 15, and then passes through the third channel 18 from the regulating cavity 15 to the water outlet cavity 14, and the second channel 17 is provided with the second water-saving piece 30. Therefore, the second waterway 12 passes through the regulating cavity 15, thereby being distinguished from the first waterway 11, and the valve core mechanism 40 can control the opening and closing of the second waterway 12 from the position of the regulating cavity 15, and can be controlled by a mechanism or by electricity.

[0034] Understandably, the second water-saving piece 30 is used for water saving of the second waterway, and therefore, the second water-saving piece 30 arranged on the waterway from the second channel 17 to the third channel 18 can save water, for example, the second water-saving piece 30 arranged in the second channel 17, the third channel 18 or the regulating cavity 15.

[0035] Preferably, the valve core mechanism 40 includes a regulating rod 41 and a water blocking piece 42, the water blocking piece 42 is arranged in the regulating cavity 15 for controlling the opening / closing of the second channel 17 or the third channel 18, the inner end of the regulating rod 41 is connected with the water blocking piece 42, and the outer end of the regulating rod 41 extends out of the open mouth of the regulating cavity 15. The water blocking piece 42 is moved to open / close the second channel 17 or the third channel 18 by the regulating rod 41. Therefore, the second water-saving piece 30 arranged in the water blocking piece 42 can also achieve water saving.

[0036] Preferably, the water-stopping part 41 is rotatably arranged in the adjusting cavity 15, the water-stopping part 42 is provided with a water-passing channel, the water outlet 422 of the water-passing channel is communicated with the third channel 18, the water inlet 424 of the water-passing channel is arranged corresponding to the second channel 17, and the water inlet 424 of the water-passing channel is selected to be abutted with the second channel 17 or the water-stopping part 42 is selected to block the second channel 17 during the rotation of the adjusting rod 41. Specifically, if the water-stopping part 42 is rotated to the water inlet 424 to be communicated with at least one second channel 17, the second channel 17 is communicated with the third channel 18 through the water-passing channel, and the second waterway 12 is in an open state. If the water-stopping part 42 is misaligned with the water inlet 424, that is, the water-stopping part 42 blocks the second channel 17, the water-stopping part 42 cuts off the connection between the second channel and the third channel. Therefore, the second water-saving piece 30 arranged in the water-passing channel of the water-stopping part 42 can also achieve water saving.

[0037] Preferably, the valve core mechanism 40 further comprises a rubber pad 43 arranged in the adjusting cavity, and the rubber pad 43 is clamped and fixed between the opening edge of the second channel 17 and the water-stopping part 42.

[0038] Preferably, the rubber pad 43 is also clamped and fixed between the opening edge of the third channel 18 and the water-stopping part 42, and the shape of the rubber pad is matched with the water-stopping part.

[0039] Preferably, the water-stopping part 42 is generally in a conical rotary body structure, has a cavity as the water-passing channel in the inside, the water outlet 422 of the water-passing channel is arranged at the top end and is abutted with the third channel 18, the water inlet 424 of the water-passing channel is arranged on the conical surface, the adjusting rod 41 is inserted into the bottom end of the water-stopping part 42, so that the adjusting rod drives the water-stopping part to rotate synchronously, and further, the edge of the water outlet 422 at the top end extends into the third channel 18. In the embodiment, the number of the third channel 18 is one.

[0040] Preferably, the number of the second channel 17 is three, the number of the water inlet 424 of the water-passing channel is three, and one or two or three of the second channels are selected to be closed or all the three second channels are selected to be opened during the rotation of the water-stopping part 42.

[0041] Preferably, the valve core mechanism 40 further comprises an end cover 44 and a wrench 45, the end cover 44 is connected to the open end of the adjusting cavity 15 to limit the adjusting rod 41 and the water-stopping part 42, and the wrench 45 is sleeved on the adjusting rod 41 from the outer end of the adjusting rod 41.

[0042] Please refer to Figure 7, the main difference is the structure of the valve core mechanism 40, the water blocking part 42 is a plug gasket corresponding to the third channel 18, the adjusting rod 41 drives the plug gasket to move linearly towards the third channel to gradually close the third channel, or linearly away from the third channel to gradually open the third channel. Further, the adjusting rod 41 adopts a threaded structure for installation, and the adjusting rod 41 is directly or indirectly screwed with the valve body, so that the adjusting rod 41 can be screwed in or out.

[0043] The above is only a preferred embodiment of the present application, and therefore cannot limit the scope of the present application. Any equivalent changes and modifications made in accordance with the scope and content of the present application should still be within the scope of the present application.

Claims

1. A constant flow valve comprising a valve body provided with a water inlet and a water outlet, a first water passage being provided in the valve body and connecting the water inlet and the water outlet, characterized in that: The first waterway is provided with a first water-saving piece, the valve body is further provided with a second waterway which is communicated with the water inlet and the water outlet, the second waterway is provided with a second water-saving piece, and the valve core mechanism for selecting to open or close the second waterway is installed on the valve body.

2. The constant flow water valve of claim 1, wherein: The valve body is provided with a water inlet cavity, a water outlet cavity and an adjusting cavity, the water inlet is the inlet of the water inlet cavity, the water outlet is the outlet of the water outlet cavity, the cavity wall between the water inlet cavity and the water outlet cavity is provided with at least one first channel, the first waterway passes through the first channel from the water inlet cavity to the water outlet cavity, and the first channel is provided with the first water-saving piece; The cavity wall between the water inlet cavity and the adjusting cavity is provided with at least one second channel, the cavity wall between the adjusting cavity and the water outlet cavity is provided with at least one third channel, the second waterway passes through the second channel from the water inlet cavity to the adjusting cavity and then passes through the third channel from the adjusting cavity to the water outlet cavity, and the second water-saving piece is arranged on the waterway from the second channel to the third channel.

3. The constant flow valve of claim 2, wherein: The adjusting cavity is provided with an open mouth, the valve core mechanism comprises an adjusting rod and a water blocking piece, the water blocking piece is arranged in the adjusting cavity for controlling the opening and closing of the second channel or the third channel, the inner end of the adjusting rod is connected with the water blocking piece, and the outer end of the adjusting rod extends out of the open mouth of the adjusting cavity, and the second water-saving piece is arranged in the second channel, the third channel or the water blocking piece.

4. The constant flow valve of claim 3, wherein: The water blocking piece is rotatably arranged in the adjusting cavity, the water blocking piece is provided with a water passing channel, the water outlet of the water passing channel is communicated with the third channel, the water inlet of the water passing channel corresponds to the second channel, and the water inlet of the water passing channel is arranged on the second channel.

5. The constant flow valve of claim 4, wherein: The valve core mechanism further comprises a rubber pad arranged in the adjusting cavity, and the rubber pad is clamped and fixed between the opening edge of the second channel and the water blocking piece.

6. The constant flow valve of claim 5, wherein: The rubber pad is also clamped and fixed between the opening edge of the third channel and the water blocking piece.

7. The constant flow valve according to claim 4 or 5 or 6, wherein: The water blocking piece is generally in the structure of a conical rotary body, has a cavity as the water passing channel in the inside, has the water outlet of the water passing channel opened at the top end and connected with the third channel, has the water inlet of the water passing channel opened on the conical surface, and the adjusting rod is inserted into the bottom end of the water blocking piece.

8. The constant flow valve of claim 7, wherein: The second channel is three, the water inlet of the water passing channel is three, and one or two or three of the second channels are selected to be closed or all the three second channels are selected to be opened in the rotating process of the water blocking piece.

9. The constant flow valve of claim 7, wherein: The valve core mechanism further comprises an end cover and a wrench, the end cover is connected with the open mouth of the adjusting cavity so as to limit the adjusting rod and the water blocking piece, and the wrench is sleeved on the adjusting rod from the outer end of the adjusting rod.

10. The constant flow valve of claim 3, wherein: The water blocking piece is a plug rubber pad arranged corresponding to the third channel, the adjusting rod drives the plug rubber pad to move linearly towards the third channel to gradually close the third channel or to move linearly away from the third channel to gradually open the third channel.

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