A constant device and water outlet device

Abstract

The application discloses a constant device and a water outlet device, the constant device comprises a shell, the shell is provided with a water inlet and a water outlet, and further comprises a buffer assembly, the buffer assembly comprises a movable element and at least one elastic element for offsetting a part of water pressure, the movable element is slidably arranged in the shell along a water flow direction, and the movable element is provided with a water receiving surface facing the water inlet; the water inlet and the water outlet are connected in communication through a water passing structure arranged on the movable element, a water passing area of the water passing structure is consistent with a water passing area of the water inlet; and the elastic element is matched between the movable element and the shell on a side of the movable element away from the water receiving surface. The constant device can output water with constant flow, constant speed, constant pressure and constant quantity, and is not affected by different water pressures.

Description

Technical Field

[0001] This invention relates to the field of sanitary ware, and in particular to a constant water flow device and a water outlet device. Background Technology

[0002] Water dispensing devices are widely used in households. Most dispensing devices have a downward water flow, while some also have an upward water flow function for rinsing the mouth, washing the face, etc., such as the multi-functional dispensing device with patent number 202020473657.0. Because the water pressure varies from household to household, and even for the same user at different times of day, the water pressure can be too high, causing splashing. This is especially true for upward-spraying devices, where the upward spray is generally at a certain angle. When the water pressure is high, the spray height increases, the water travels a longer distance, and the water can easily hit the user or splash off the countertop. For downward-spraying devices, high water pressure can result in a very rapid and strong flow, causing water to easily splash out of the basin.

[0003] Therefore, the existing water outlet device has the following problems: 1. Under different water pressure environments, the water flow is either large or small, fast or slow, and the water pressure and flow are uneven; 2. When using mouthwash, the water outlet height and distance vary greatly when the user's water pressure changes, affecting the mouthwash function; 3. When the foaming water pressure is high, water is easy to splash onto the body and outside the sink. Summary of the Invention

[0004] This invention addresses the technical problems existing in the prior art by providing a constant water output device to ensure a constant water output, preventing the effectiveness of use from being affected by high water pressure.

[0005] The technical solution adopted by the present invention to solve its technical problem is as follows: a constant pressure device includes a housing, the housing having an inlet and an outlet, and a buffer assembly. The buffer assembly includes a movable member and at least one elastic member for offsetting a portion of the water pressure. The movable member is slidably disposed within the housing along the water flow direction, and the movable member has a water-receiving surface facing the inlet. The inlet and outlet are connected by a water-passing structure disposed on the movable member, the water-passing area of ​​the water-passing structure being consistent with the water-passing area of ​​the inlet. The elastic member is fitted between the movable member on the side facing away from the water-receiving surface and the housing.

[0006] Furthermore, the water-receiving surface is a concave arc surface, and the area of ​​the water-receiving surface is greater than or equal to twice the water-passing area of ​​the inlet.

[0007] Furthermore, the water-passing structure includes a plurality of water-passing grooves distributed circumferentially on the outer side of the movable component.

[0008] Furthermore, the movable component includes a water receiving component and a water passing component. The water receiving component is provided with the water receiving surface and is installed on the water passing component. The plurality of elastic components are respectively fitted between the water passing component and the housing. The water receiving component is made of an elastically deformable material.

[0009] Furthermore, the water receiving component has a mounting post at one end facing away from the water receiving surface, and the water passing component has a mounting groove. The mounting post is inserted into the mounting groove, and the two are interference-fitted. Multiple ribs are distributed on the outer sides of the mounting post for tight fit with the mounting groove, and each rib extends along the length direction of the mounting post.

[0010] Furthermore, there are multiple elastic elements. When the water pressure is lower than the preset value, only a portion of the elastic elements are compressed. When the water pressure is greater than or equal to the preset value, each elastic element is compressed separately.

[0011] Furthermore, before water enters the inlet, the movable element is closed by being pushed against by one of the elastic elements.

[0012] Furthermore, the inner wall of the housing is provided with a first annular inclined surface around the water inlet, and the movable part is provided with a second annular inclined surface around the water receiving surface. When the movable part closes the water inlet, the first annular inclined surface and the second annular inclined surface are adapted to fit together, and a sealing structure is provided on the second annular inclined surface. The sealing structure includes at least one sealing convex ring and / or sealing ring.

[0013] Furthermore, the movable component has a plurality of concentric annular limiting grooves on the side facing away from the water receiving surface. These annular limiting grooves correspond one-to-one with the plurality of elastic components. One end of each elastic component is inserted into the corresponding annular limiting groove, and the other end of each elastic component extends toward the end of the housing with the water outlet. The housing has a hollow limiting bracket inside its water outlet.

[0014] Furthermore, there are two elastic elements. One elastic element abuts against the movable element and the housing at both ends, and the other elastic element engages with the movable element at one end. Before being compressed, the other end of the other elastic element has a predetermined distance between it and the inner wall of the housing in the direction of extension of the other end of the other elastic element.

[0015] The present invention also provides a water outlet device, including a water outlet body having at least one water outlet path; and a constant as described above, wherein the constant is installed on at least one water outlet path of the water outlet body.

[0016] Furthermore, the water outlet path equipped with the constant device is a mouthwash water path, and the water outlet body is provided with an upper water outlet that connects to the mouthwash water path.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. Since the present invention also includes a buffer component, which includes the moving part and at least one elastic part for offsetting a portion of the water pressure, the constant device of the present invention can output water with constant flow, constant speed, constant pressure and constant quantity, without being affected by different water pressures.

[0019] 2. The water-receiving surface is a concave arc surface, which increases the water-receiving area, ensuring that most of the water pressure and flow velocity are immediately offset at this location. It also provides further buffering. Especially when the water-receiving component is made of an elastically deformable material, it can effectively absorb water pressure and flow velocity, resulting in a better buffering effect.

[0020] 3. The water-passing structure includes multiple water-passing grooves distributed circumferentially on the outer side of the movable part. On the one hand, this ensures that the water-passing area of ​​the water-passing structure is large enough, and on the other hand, it reduces the area occupied by the water-receiving surface of the movable part, allowing the water-receiving surface to be made larger.

[0021] 4. There are multiple elastic elements. When the water pressure is lower than the preset value, only a portion of the elastic elements are compressed. When the water pressure is greater than or equal to the preset value, each elastic element is compressed. In this way, normal water output can be ensured under low water pressure, so that the flow rate is not damaged.

[0022] 5. Before water enters through the inlet, the movable part is closed by one of the elastic elements, so that the constant device of the present invention realizes the function of a one-way valve.

[0023] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments; however, the constant device and water outlet device of the present invention are not limited to the embodiments. Attached Figure Description

[0024] Figure 1 This is an exploded view of the constant device of the present invention;

[0025] Figure 2 This is a three-dimensional structural diagram of the constant device of the present invention;

[0026] Figure 3 This is a side view of the constant device of the present invention;

[0027] Figure 4 This is a three-dimensional structural schematic diagram of the first outer shell of the present invention;

[0028] Figure 5 This is a front view of the first outer casing of the present invention;

[0029] Figure 6 yes Figure 5 Schematic diagram of the cross section at point AA;

[0030] Figure 7 This is a three-dimensional structural schematic diagram of the second outer shell of the present invention;

[0031] Figure 8 This is a front view of the second outer casing of the present invention;

[0032] Figure 9 yes Figure 8 Schematic diagram of the cross section at BB;

[0033] Figure 10 This is a three-dimensional structural schematic diagram of the water receiving component of the present invention;

[0034] Figure 11 This is a three-dimensional structural diagram of the water receiving component of the present invention (flipped over);

[0035] Figure 12 This is a three-dimensional structural schematic diagram of the water-passing component of the present invention;

[0036] Figure 13 This is a three-dimensional structural schematic diagram of the water-passing component of the present invention (flipped over);

[0037] Figure 14 This is a front view of the water-passing component of the present invention;

[0038] Figure 15 yes Figure 14 A cross-sectional view at point CC;

[0039] Figure 16 This is a cross-sectional schematic diagram of the constant device of the present invention in a static state without water pressure;

[0040] Figure 17 This is a cross-sectional schematic diagram of the constant device of the present invention in the low water pressure operating state;

[0041] Figure 18 This is a cross-sectional schematic diagram of the constant device of the present invention in the high water pressure operating state;

[0042] In the diagram: 1. Shell; 11. First outer shell; 111. Inlet; 112. First annular inclined surface; 113. Annular groove; 12. Second outer shell; 121. Outlet; 122. Limiting bracket; 2. Moving part; 21. Water receiving part; 211. Water receiving surface; 212. Mounting column; 2121. Rib; 213. Sealing protrusion; 214. Second annular inclined surface; 22. Water passing part; 221. Mounting groove; 222 / 223. Annular limiting groove; 23. Water passing groove; 3 / 4. Elastic part; 5. O-ring. Detailed Implementation

[0043] In this invention, the terms "first," "second," etc., are used only to distinguish similar objects and are not necessarily used to describe a specific order or sequence, nor should they be construed as indicating or implying relative importance. The use of terms such as "upper" and "lower" in the description to indicate orientation or positional relationships is based on the orientation or positional relationships shown in the accompanying drawings and is only for the convenience of describing the invention, not to indicate or imply that the device referred to must have a specific orientation, or be constructed and operated in a specific orientation; therefore, it should not be construed as a limitation on the scope of protection of this invention. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances. Furthermore, in the description of this application, unless otherwise stated, "a plurality of" means two or more, and "at least one" means one or more.

[0044] Please see Figures 1-18 As shown, a constant pressure device of the present invention includes a housing 1, which has an inlet 111 and an outlet 121, and a buffer assembly. The buffer assembly includes a movable member 2 and at least one elastic member for offsetting a portion of the water pressure. The movable member 2 is slidably disposed within the housing 1 along the water flow direction, and the movable member 2 has a water-receiving surface 211 facing the inlet 111. The inlet 111 and the outlet 121 are connected by a water-passing structure disposed on the movable member 2, and the water-passing area of ​​the water-passing structure is consistent with the water-passing area of ​​the inlet 111. The elastic member is fitted between the movable member 2 on the side facing away from the water-receiving surface 211 and the housing 1.

[0045] In this embodiment, there are multiple elastic elements. When the water pressure is lower than a preset value, only a portion of the elastic elements are compressed. When the water pressure is greater than or equal to the preset value, all elastic elements are compressed. In this embodiment, there are specifically two elastic elements, 3 and 4, which are helical spring structures, but are not limited to this. One elastic element 3 has its two ends abutting against the movable element 2 and the housing 1, respectively. One end of the other elastic element 4 is engaged with the movable element 2. Before being compressed, the other end of the other elastic element 4 has a preset distance of 2-3 mm between it and the inner wall of the housing 1 in the direction extending from the other end of the other elastic element 4 (specifically, the inner wall where the outlet 121 of the housing 1 is located). Therefore, when the water pressure is low, the other elastic element 4 has a 2-3 mm clearance space, which does not consume the low water pressure and ensures a stable water flow and pressure output even at low water pressure.

[0046] In this embodiment, the movable component 2 includes a water receiving component 21 and a water passing component 22. The water receiving component 21 is provided with a water receiving surface 211, and the water receiving component 21 is mounted on the water passing component 22. The two elastic components 3 and 4 are respectively engaged between the water passing component 22 and the housing 1. The water receiving component 21 is made of an elastically deformable material; specifically, the material of the water receiving component 21 is a soft material such as silicone or rubber.

[0047] In this embodiment, the water-receiving surface 211 is a concave arc surface, which has the functions of absorbing water pressure and flow velocity and buffering. The area of ​​the water-receiving surface 211 is greater than or equal to twice the water-passing area of ​​the inlet 111, which can ensure that most of the water pressure and flow velocity are offset at this position in the first time, and no excess water pressure and flow velocity will flow to the water-passing structure. The water-passing structure includes multiple water-passing grooves 23 distributed circumferentially on the outer side of the movable part 2. The cross-section of each water-passing groove 23 is approximately arc-shaped, and the number of water-passing grooves 23 is four, but not limited to this. Most of each water-passing groove 23 is formed in the water-passing part 22, and a small part is formed in the water-receiving part 21.

[0048] In this embodiment, as Figure 11 , Figure 12 As shown, the water receiving component 21 has a mounting post 212 at one end opposite to the water receiving surface 211, and the water passing component 22 has a mounting groove 221. The mounting post 212 is inserted into the mounting groove 221, and the two are interference-fitted. Multiple ribs 2121 are distributed on the outer sides of the mounting post 212 for tight fitting with the mounting groove 221, and each rib 2121 extends along the length of the mounting post 212. The mounting post 212 is a square post, and there are four ribs 2121, which are respectively located on the four sides of the mounting post 212. The mounting groove 221 is also a square groove structure. The multiple ribs 2121 provide a tight fit, and the spacing between adjacent ribs 2121 also serves to release air, preventing air accumulation during assembly and thus avoiding assembly difficulties.

[0049] In this embodiment, before water enters the inlet 111, the movable member 2 is abutted by one of the elastic members 3 to close the inlet 111, thus giving the invention the function of a one-way valve. That is, before water enters the inlet 111, one of the elastic members 3 has a certain pre-pressure, which can push the movable member 2 to move in the direction of the inlet 111 to close the inlet 111.

[0050] In this embodiment, the housing 1 has a first annular inclined surface 112 surrounding the water inlet 111, and the movable component 2 has a second annular inclined surface 214 surrounding the water receiving surface 211. When the water inlet 111 is closed, the first annular inclined surface 112 and the second annular inclined surface 214 fit together, and the second annular inclined surface 214 has a sealing structure. The sealing structure specifically includes at least one sealing protrusion 212 integrally formed on the water receiving component 21. Specifically, the number of sealing protrusions 212 is two, such as... Figure 10 As shown, but not limited to, in other embodiments, the sealing structure includes a sealing ring mounted on the water-receiving component. The first annular inclined surface 112 and the second annular inclined surface 214 can correct the position of the movable component 2, preventing it from shifting during movement and affecting the sealing effect. Furthermore, because the first annular inclined surface 112 and the second annular inclined surface 214 are inclined surfaces, the sealing positions of the two sealing protrusions 212 are different; when one sealing protrusion is damaged, the sealing of the other sealing protrusion is not affected. In this embodiment, as... Figures 13-15 As shown, the movable component 2 has a plurality of concentric annular limiting grooves 222 and 223 on the side opposite to the water receiving surface 211. These annular limiting grooves 222 and 223 correspond one-to-one with the plurality of elastic components 3 and 4. One end of each elastic component is inserted into the corresponding annular limiting groove, and the other end of each elastic component extends toward the end of the housing 1 where the water outlet 121 is located. Since there are two elastic components, there are also two annular limiting grooves. The housing 1 has a hollowed-out limiting bracket 122 inside its water outlet 121, such as... Figure 7 As shown, while ensuring an effective water outlet area, it also provides support for the elastic element 3 / 4 and prevents the elastic element 3 / 4 from falling off. The limiting bracket 122 is specifically cross-shaped, but is not limited to this.

[0051] In this embodiment, the housing 1 includes a first outer shell 11 and a second outer shell 12. The first outer shell 11 and the second outer shell 12 are threadedly connected. The first outer shell 11 is provided with the water inlet 111, and the second outer shell 12 is provided with the water outlet 121121. The movable member 22 is installed inside the first outer shell 11. The two elastic members 3 and 4 are respectively fitted between the movable member 22 and the second outer shell 12. The first outer shell 11 is provided with an annular groove 113, and a sealing ring 5 is fitted inside the annular groove 113 to facilitate subsequent sealing during installation.

[0052] A constant device according to the present invention has the following initial state: Figure 16As shown, at this time, water does not enter through the inlet 111, and the entire movable part 2 is pushed by one of the elastic elements 3 to a state of contact with the first annular inclined surface 112 of the first outer shell 11, thereby closing the inlet 111. When water enters through the inlet 111 and the water pressure is low, the water pressure will act on the water-receiving surface 211 of the water-receiving part 21, thereby pushing the movable part 2 open and compressing one of the elastic elements 3. At this time, the water flows sequentially through the inlet 111, the water-receiving surface 211, and the various water passages 23 of the movable part 2 to the outlet 121 of the second outer shell, and finally flows out from the outlet 121, as shown. Figure 17 As shown; during this process, the other elastic element 4 will not be compressed, ensuring normal water output even under low water pressure. The elastic force of one of the elastic elements 3 is less than the water pressure value at 0.05MPa, which ensures normal water output under low water pressure without affecting the flow rate.

[0053] When the water pressure is greater than 0.2 MPa, as the moving part 2 moves towards the outlet 121, the other end of the elastic part 4 contacts the second outer shell 12 and is gradually compressed, as... Figure 18 As shown. Therefore, in this process, the two elastic elements are compressed successively, which offsets part of the water pressure and flow rate, making the outflowing water constant. One elastic element 3 has a smaller force than the other elastic element 4. Under the action of the spring forces of the two elastic elements 3 and 4, the entire moving part 2 moves more uniformly and stably, without any problems of jamming, excessively fast or slow rebound. Therefore, the outflowing water is more stable, ensuring a constant effect.

[0054] The present invention provides a constant flow device in which the water flow area of ​​the inlet 111 is consistent with the water flow area of ​​the water flow structure (i.e., the four water flow channels 23). Combined with the counteracting effect of multiple elastic elements 3 and 4 and the water receiving surface 211, this effectively ensures that the water flowing from the outlet 121 is constant in quantity, flow rate, pressure, and velocity—in short, constant outflow. This ensures that the water after passing through the constant flow device will not splash outwards or experience fluctuating spray heights due to high water pressure. Specifically, the consistency between the water flow area of ​​the inlet 111 and the water flow area of ​​the water flow structure (i.e., the four water flow channels 23) ensures that during the buffering process of the water flow through the buffer assembly, no other factors that would increase or decrease the water pressure / flow velocity are introduced.

[0055] Normal household water pressure is between 0.1-0.7 MPa. Water flows in through inlet 111 (approximately 4 mm in diameter) in a limited manner. Water flows out normally when the water pressure is ≤0.2 MPa, and the other elastic component 4 does not work. At this time, it is a low water pressure state and water can flow out normally. The low water pressure only pushes open the movable component 2. When the water pressure is 0.1 MPa, the diameter of inlet 111 is 4 mm and the area is 12 mm2, resulting in a pressure of 1.2 N, equivalent to a weight of 120 g. Therefore, even at a water pressure of 0.05 MPa, the pressure is equal to 0.6 N, equivalent to a weight of 60 g, which can still push open the movable component 2 normally.

[0056] A water outlet device according to the present invention includes a water outlet body having at least one water outlet path; it also includes a constant flow device as described above, wherein the constant flow device is installed on at least one water outlet path of the water outlet body, and the water flow direction of the constant flow device is the same as the water flow direction of the water outlet path. The constant flow device can be installed at any position in the water outlet path. The water outlet device is specifically a faucet, but is not limited thereto.

[0057] In this embodiment, the water outlet path equipped with the constant valve is a mouthwash water path, and the water outlet body has an upper outlet connected to the mouthwash water path. In other embodiments, the water outlet path is a lower water outlet path, and the water outlet body has a lower outlet connected to the lower water outlet path. In other embodiments, the number of water outlet paths is at least two, including the mouthwash water path and the lower water outlet path, and the constant valve is respectively installed on the mouthwash water path and the lower water outlet path.

[0058] The present invention discloses a water outlet device. The flow rate and outlet span of the device are measured under different water pressures, and the results are shown in the table below:

[0059] 1 0.3 1.5 110 2 0.4 1.5 110 3 0.5 1.5 110 4 0.6 1.4 110 5 0.7 1.4 115

[0060] As can be seen from the table above, the water outlet device of the present invention, after adopting the constant device of the present invention, under different water pressures, the water outlet span and water flow rate of its upper outlet 121 remain unchanged or only slightly change, basically achieving constant water output, thereby avoiding the problem of splashing.

[0061] The constant-flow device and water outlet device of the present invention are identical to or can be implemented using existing technologies for the parts not described herein.

[0062] The above embodiments are only used to further illustrate a constant and water outlet device of the present invention. However, the present invention is not limited to the embodiments. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention shall fall within the protection scope of the technical solution of the present invention.

Claims

1. A constant pressure device, comprising a housing having an inlet and an outlet, characterized in that: It also includes a buffer assembly, which comprises a movable member and at least one elastic member for offsetting a portion of the water pressure. The movable member is slidably disposed within the housing along the water flow direction and has a water-receiving surface facing the inlet. The inlet and outlet are connected by a water-passing structure disposed on the movable member, the water-passing area of ​​the water-passing structure being consistent with the water-passing area of ​​the inlet. The elastic member is fitted between the movable member on the side facing away from the water-receiving surface and the housing. The movable component includes a water receiving component and a water passing component. The water receiving component is provided with the water receiving surface and is installed on the water passing component. The at least one elastic element is fitted between the water passing component and the housing. The water receiving component is made of an elastically deformable material.

2. The constant device according to claim 1, characterized in that: The water-receiving surface is a concave arc surface, and the area of ​​the water-receiving surface is greater than or equal to twice the water-passing area of ​​the inlet.

3. The constant device according to claim 1, characterized in that: The water passage structure includes multiple water passage grooves distributed circumferentially on the outer side of the movable component.

4. The constant device according to claim 1, characterized in that: The water receiving component has a mounting post at one end facing away from the water receiving surface, and the water passing component has a mounting groove. The mounting post is inserted into the mounting groove, and the two are interference-fitted. Multiple ribs are distributed on the outer sides of the mounting post for tight fit with the mounting groove, and each rib extends along the length direction of the mounting post.

5. The constant device according to claim 1, characterized in that: The number of elastic elements is multiple. When the water pressure is lower than the preset value, only a portion of the elastic elements are compressed. When the water pressure is greater than or equal to the preset value, each elastic element is compressed separately.

6. The constant device according to claim 5, characterized in that: Before water enters the inlet, the movable part is closed by being pushed against by one of the elastic elements.

7. The constant device according to claim 6, characterized in that: The inner wall of the housing is provided with a first annular inclined surface around the water inlet, and the movable part is provided with a second annular inclined surface around the water receiving surface. When the movable part closes the water inlet, the first annular inclined surface and the second annular inclined surface are adapted to fit together, and a sealing structure is provided on the second annular inclined surface. The sealing structure includes at least one sealing convex ring and / or sealing ring.

8. The constant device according to claim 5, characterized in that: The movable component has a plurality of concentric annular limiting grooves on the side facing away from the water receiving surface. Each of the plurality of annular limiting grooves corresponds to one of the plurality of elastic components. One end of each elastic component is inserted into the corresponding annular limiting groove, and the other end of each elastic component extends toward the end of the housing with the water outlet. The housing has a hollow limiting bracket inside its water outlet.

9. The constant device according to any one of claims 5-8, characterized in that: The number of elastic elements is two. One elastic element has two ends abutting against the movable element and the housing, respectively. One end of the other elastic element is engaged with the movable element. Before being compressed, the other end of the other elastic element has a predetermined distance between it and the inner wall of the housing in the direction of the other end of the other elastic element.

10. A water outlet device, comprising a water outlet body, the water outlet body being provided with at least one water outlet passage; characterized in that: It also includes a constant device as described in any one of claims 1-9, wherein the constant device is installed in at least one outlet water path of the outlet body.

11. The water outlet device according to claim 10, characterized in that: The water outlet path equipped with the constant device is a mouthwash water path, and the water outlet body is provided with an upper water outlet that connects to the mouthwash water path.

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