Water outlet device and shower head

Abstract

The utility model discloses a water outlet device and a shower head, and the water outlet device comprises a shell which is provided with a water inlet and a water outlet and has a height direction and a width direction; the size of the water outlet in the height direction is smaller than that of the water outlet in the width direction; the water outlet flow path is used for communicating the water inlet with the water outlet and comprises a plurality of water outlet channels which are arranged side by side in the width direction; the water outlet channel comprises an expansion section and a rectification section which are sequentially communicated in the water flow direction, the two ends of the expansion section in the water flow direction are a small end and a large end respectively, the sectional area of the large end is larger than that of the small end, and the large end and the rectification section are equal in size in the width direction. According to the water outlet device and the shower head, the water outlet quality can be improved, and the waterfall forming effect is improved.

Description

Technical Field

[0001] The utility model relates to bathroom products, in particular to a water outlet device and a shower head. Background Art

[0002] Water discharge in the form of a waterfall is a type of water discharge from a shower head. The water outlet of this type of shower head forms a flat water flow, which is similar to a waterfall.

[0003] However, the water quality of the waterfall showerhead in the related art is poor, which affects the waterfall forming effect. Utility Model Content

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides a water outlet device that can improve the water outlet quality and enhance the waterfall forming effect.

[0005] The utility model also provides a shower head with the water outlet device.

[0006] A water outlet device according to an embodiment of the first aspect of the utility model includes: a shell having a water inlet and a water outlet, the shell having a height direction and a width direction; a water outlet, the size of the water outlet along the height direction is smaller than the size of the water outlet along the width direction; a water outlet flow path for connecting the water inlet and the water outlet, the water outlet flow path includes a plurality of water outlet channels, and the plurality of water outlet channels are arranged side by side along the width direction; the water outlet channel includes an expansion section and a rectification section which are connected in sequence along the water flow direction, the two ends of the expansion section along the water flow direction are a small end and a large end respectively, the cross-sectional area of ​​the large end is larger than the cross-sectional area of ​​the small end, and along the width direction, the size of the large end is equal to that of the rectification section.

[0007] The water outlet device according to the embodiment of the utility model has at least the following beneficial effects:

[0008] The utility model sets a shell so that the shell has a water outlet, and the size of the water outlet along the height direction is smaller than the size of the water outlet along the width direction. Therefore, a water flow with a height dimension smaller than a width dimension can be generated, and water can be discharged in a waterfall manner.

[0009] The utility model sets a water outlet flow path so that the water outlet flow path includes a plurality of water outlet channels, and the water outlet channels include an expansion section and a rectification section. Therefore, compared with the water outlet mode of a single water flow forming a waterfall, a large water flow can be divided into a plurality of small water flows, and each small water flow flows out from the water outlet in the manner of a waterfall, so as to form a larger or wider waterfall.

[0010] The utility model sets a water outlet flow path so that the water outlet flow path includes a plurality of water outlet channels, and the water outlet channels include an expansion section and a rectification section. Therefore, compared with the water outlet mode of a single water flow forming a waterfall, each small water flow forms a water flow that is discharged in a waterfall mode relatively independently, thereby reducing the mutual influence of various parts in the original water flow and improving the water outlet quality.

[0011] The utility model sets a water outlet flow path so that the water outlet flow path includes a plurality of water outlet channels, and the water outlet channels include an expansion section and a rectification section. Therefore, compared with the water outlet method of forming a waterfall by a single stream of water, the entity used to form the water outlet channel can enhance the strength of the shell, and in particular, help to enhance the deformation resistance of the shell in the height direction, help to maintain the stability of the shape of the water outlet, and help to prevent the local height of the water outlet from increasing and affecting the water outlet effect, that is, avoid the middle part of the water outlet from opening upward and downward, and prevent the water flow from becoming thicker and narrower to affect the water outlet quality and the waterfall forming effect.

[0012] The utility model arranges an expansion section so that the expansion section has a small end and a large end arranged in sequence along the water flow direction. Therefore, compared with the water outlet mode of a single water flow forming a waterfall, the expansion stroke of the water flow along the wall is distributed to each small water flow, thereby reducing the kinetic energy loss of the water flow during the expansion flow, helping to reduce the difference between various parts on the same water flow cross section, helping to alleviate the situation where a slow water flow slows down an adjacent fast water flow, and further improving the water outlet quality.

[0013] The utility model also makes the widened water flow gradually change from turbulent flow to laminar flow by setting the rectifying section, which helps to reduce water splashes, makes the water flow out purely, and obtains a better crystal clear water shape. The utility model also provides a shower including the above water outlet device, which has the above beneficial effects.

[0014] According to a water outlet device of the first aspect embodiment of the utility model, the water inlet is located in the middle of the shell along the width direction, the water outlet channel includes a water diversion hole, the water diversion hole connects the water inlet and the expansion section, two of the multiple water outlet channels are respectively the first water outlet channel and the second water outlet channel, the first water outlet channel is closer to the middle of the water outlet along the width direction relative to the second water outlet channel, and along the width direction, the distance from the water diversion hole of the second water outlet channel to the water inlet is greater than the distance from the water diversion hole of the first water outlet channel to the water inlet.

[0015] According to a water outlet device of an embodiment of the first aspect of the utility model, the cross-sectional area of ​​the water diversion hole of the second water outlet channel is larger than the cross-sectional area of ​​the water diversion hole of the first water outlet channel.

[0016] According to a water outlet device of an embodiment of the first aspect of the utility model, the sum of the cross-sectional areas of the water diversion holes of the plurality of water outlet channels is 1 to 1.5 times the cross-sectional area of ​​the water outlet.

[0017] According to a water outlet device of an embodiment of the first aspect of the utility model, the sum of the cross-sectional areas of the water diversion holes of the plurality of water outlet channels is greater than the cross-sectional area of ​​the water outlet.

[0018] According to a water outlet device of the first aspect embodiment of the utility model, the water outlet includes a first water outlet section with a first height dimension and a second water outlet section with a second height dimension along the width direction, the first water outlet section corresponds to the first water outlet channel, the second water outlet section corresponds to the second water outlet channel, and the second height dimension is greater than the first height dimension.

[0019] According to a water outlet device of the first aspect of the utility model, the water outlet includes a first water outlet section having a first height dimension along the width direction, the first water outlet section corresponds to the first water outlet channel, and the first height dimension is at least 0.6 mm.

[0020] According to a water outlet device of the first aspect of the utility model, the water outlet flow path includes a water diversion channel, which is extended along the height direction, the bottom of the water diversion channel is connected to the water inlet, and the top of the water diversion channel is connected to at least one water diversion hole of the water outlet channel.

[0021] According to a water outlet device of an embodiment of the first aspect of the utility model, the water outlet channel also includes a connecting port connecting the water diversion hole and the expansion section, and along the height direction, multiple connecting ports of the water outlet channels are arranged at the same height.

[0022] According to a water outlet device of an embodiment of the first aspect of the utility model, the communicating port is provided on the bottom wall of the small end of the extended section.

[0023] According to a water outlet device of an embodiment of the first aspect of the utility model, in the width direction, the expansion section includes two opposite side walls arranged at an angle, the side with a smaller distance between the two side walls forms the small end, and the side with a larger distance between the two side walls forms the large end, and the side walls include plane walls or curved walls.

[0024] According to a water outlet device of the first aspect embodiment of the utility model, the straightening section includes a front straightening part and a rear straightening part arranged in sequence along the water flow direction, along the height direction, the height dimension of the front straightening part is equal to the height dimension of the expansion section, the height dimension of the rear straightening part is larger than the height dimension of the expansion section, and / or the height dimension of the straightening section is larger than the height dimension of the water outlet.

[0025] According to a water outlet device of the first aspect of the utility model, at least one dividing rib is arranged in the water outlet, and the dividing rib is used to divide the water outlet into at least two water outlet sections along the width direction, each of the water outlet sections is connected to at least one rectifying section, and the dividing rib is extended along the water flow direction, wherein the thickness of the dividing rib is thinned along the water flow direction, and / or a gap is arranged at one end of the dividing rib along the water flow direction, and the gap connects two adjacent water outlet sections.

[0026] According to a water outlet device of the first aspect embodiment of the utility model, the shell includes a water outlet body and a water outlet lower cover, the water outlet body is located on the top of the water outlet lower cover, and the water outlet body and the water outlet lower cover cooperate to form the water outlet flow path, wherein one of the water outlet body and the water outlet lower cover is provided with a gradually expanding groove, and the other of the water outlet body and the water outlet lower cover cooperates with the gradually expanding groove to form the expansion section; and / or one of the water outlet body and the water outlet lower cover is provided with a dividing rib, and the other of the water outlet body and the water outlet lower cover cooperates with the dividing rib to form the straightening section.

[0027] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0029] Figure 1 It is a structural schematic diagram of the water outlet device of an embodiment of the utility model;

[0030] Figure 2 for Figure 1 A side cutaway schematic diagram of a water outlet device;

[0031] Figure 3 for Figure 1 A top view cutaway schematic diagram of a water outlet device;

[0032] Figure 4 for Figure 1 A schematic cross-sectional view of a water outlet of a water outlet device;

[0033] Figure 5 for Figure 1 A three-dimensional assembly diagram of the water outlet device;

[0034] Figure 6 for Figure 5 Schematic diagram of the assembly of the water outlet device from above.

[0035] Figure numerals: 100 - shell, 110 - water inlet, 120 - water outlet, 130 - water outlet flow path, 140 - water outlet channel, 150 - expansion section, 160 - rectification section, 170 - large end, 180 - small end, 190 - water diversion hole, 200 - first water outlet channel, 210 - second water outlet channel, 220 - first water outlet section, 230 - second water outlet section, 240 - water diversion channel, 250 - connecting port, 260 - side wall, 270 - front rectification part, 280 - rear rectification part, 290 - dividing rib, 300 - missing part, 310 - water outlet body, 320 - water outlet lower cover, 330 - gradually expanding groove. DETAILED DESCRIPTION

[0036] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0037] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0038] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of first and second, this is only for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0039] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation, connection and connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0040] The water outlet device and the shower head according to the embodiments of the utility model are described below with reference to the accompanying drawings.

[0041] Reference Figure 1 The utility model aims to provide an embodiment of a water outlet device. Meanwhile, the embodiment is mostly used for shower heads. Therefore, the utility model also provides an embodiment of a shower head with a water outlet device.

[0042] In this embodiment, the water outlet device mainly includes a housing 100 , and the housing 100 has a water inlet 110 , a water outlet 120 , and a water outlet flow path 130 connecting the water inlet 110 and the water outlet 120 .

[0043] Since the present embodiment is used to discharge water in a waterfall manner, the dimension of the water outlet 120 in the height direction is smaller than the dimension of the water outlet 120 in the width direction, so that the water flow out of the water outlet 120 has a larger width and a smaller height, or in other words, the thickness of the water flow out of the water outlet 120 is smaller, and the width direction and the height direction are referred to as Figure 1 shown.

[0044] Reference Figure 2 In some specific embodiments of the present invention, the housing 100 may include a water outlet body 310 and a water outlet lower cover 320 , the water outlet body 310 is located on the top of the water outlet lower cover 320 , and the water outlet body 310 and the water outlet lower cover 320 cooperate to form a water outlet flow path 130 .

[0045] In some specific embodiments of the present invention, the water outlet body 310 or the water outlet lower cover 320 can independently form a section of the water outlet flow path 130. For example, a water inlet joint is provided on the top of the water outlet body 310, and a water inlet 110 is formed in the water inlet joint, which helps to maintain the integrity of the joint and facilitates assembly and sealing.

[0046] In some specific embodiments of the present invention, one of the water outlet body 310 and the water outlet lower cover 320 can have a half surrounding wall, while the other of the water outlet body 310 and the water outlet lower cover 320 can have a half surrounding wall or a straight wall, and two half surrounding walls or one half surrounding wall and one straight wall can form a section of the water outlet flow path 130.

[0047] In some specific embodiments of the present invention, depending on the requirements of manufacturing, assembly, use and maintenance, it can be specifically selected whether the part of the water outlet flow path 130 forming the water containing space is located in the water outlet body 310 or the water outlet lower cover 320 .

[0048] Reference Figure 2 As for the water outlet flow path 130 , in the present embodiment, the water outlet flow path 130 includes a water inlet channel, a water diversion channel 240 and a plurality of water outlet channels 140 arranged in sequence along the water flow direction.

[0049] Among them, since the water inlet 110 is arranged at the top of the shell 100, the water inlet 110 is located at the top of the water inlet channel. After entering the water inlet channel, the water drops to the bottom of the water inlet channel, and then flows laterally and enters the bottom of the water diversion channel 240. Then, it rises along the water diversion channel 240 and flows to each water outlet channel 140.

[0050] In some specific embodiments of the present invention, the water inlet 110 may be located on the side of the housing 100 to meet different installation requirements.

[0051] In this embodiment, since the water flows from the bottom of the water diversion channel 240 to the top of the water diversion channel 240 , the water flows evenly upward, reducing the flow difference, so that the water flows obtained by each water outlet channel 140 tend to be consistent.

[0052] In some specific embodiments of the present invention, the water diversion channel 240 can supply water to all the water outlet channels 140, thereby simplifying the structure of the water diversion channel 240 and facilitating manufacturing.

[0053] Reference Figure 3 For the water outlet channel 140, multiple water outlet channels 140 are arranged side by side along the width direction. The water outlet channel 140 includes an expansion section 150 and a straightening section 160. The expansion section 150 and the straightening section 160 are arranged in sequence and connected along the water flow direction. The expansion section 150 has a small end 180 and a large end 170 arranged in sequence along the water flow direction. The cross-sectional area of ​​the large end 170 is larger than the cross-sectional area of ​​the small end 180. Along the width direction, the size of the large end 170 is equal to that of the straightening section 160.

[0054] Therefore, in summary, this embodiment has the following effects:

[0055] In this embodiment, the shell 100 is provided with a water outlet 120, and the dimension of the water outlet 120 along the height direction is smaller than the dimension of the water outlet 120 along the width direction. Thus, a water flow with a height dimension smaller than a width dimension can be generated, thereby realizing water discharge in the form of a waterfall.

[0056] In this embodiment, the water outlet flow path 130 is provided so that the water outlet flow path 130 includes a plurality of water outlet channels 140, and the water outlet channels 140 include an expansion section 150 and a rectifying section 160. Therefore, compared with the water outlet method of a single stream of water forming a waterfall, a large water stream can be divided into a plurality of small water streams, and each small water stream flows out from the water outlet 120 in the manner of a waterfall, thereby forming a larger or wider waterfall.

[0057] In this embodiment, the water outlet flow path 130 is provided so that the water outlet flow path 130 includes a plurality of water outlet channels 140, and the water outlet channels 140 include an expansion section 150 and a rectifying section 160. Therefore, compared with the water outlet method in which a single stream of water forms a waterfall, each small water stream forms a water flow that is discharged in a waterfall manner relatively independently, thereby reducing the mutual influence of various parts in the original water flow and improving the water outlet quality.

[0058] In this embodiment, the water outlet flow path 130 is set, so that the water outlet flow path 130 includes a plurality of water outlet channels 140, and the water outlet channel 140 includes an expansion section 150 and a rectifying section 160. Therefore, compared with the water outlet method of forming a waterfall by a single stream of water, the entity used to form the water outlet channel 140 can enhance the strength of the shell 100, and in particular, it helps to enhance the deformation resistance of the shell 100 in the height direction, helps to maintain the stability of the shape of the water outlet 120, and helps to prevent the local height of the water outlet 120 from increasing and affecting the water outlet effect, that is, avoid the middle part of the water outlet 120 from opening upward and downward, and prevent the water flow from becoming thicker and narrower to affect the water outlet quality and the waterfall forming effect.

[0059] In this embodiment, an expansion section 150 is provided so that the expansion section 150 has a small end 180 and a large end 170 which are sequentially arranged along the direction of the water flow. Therefore, compared with the water discharge method in which a single stream of water forms a waterfall, the expansion distance of the water flow along the wall is distributed to each small stream of water, thereby reducing the kinetic energy loss of the water flow during the expansion flow, helping to reduce the difference between the various parts on the same water flow cross section, helping to alleviate the situation in which the slow water flow slows down the adjacent fast water flow, and further improving the water discharge quality.

[0060] By providing the rectifying section 160, the embodiment can gradually transform the widened water flow from turbulent flow to laminar flow, which helps to reduce water splashes, allowing the water to flow out purely and obtaining a better crystal clear water shape.

[0061] In some specific embodiments of the present invention, the water inlet 110 can be located in the middle of the shell 100 along the width direction, so that the difference in distance from the water inlet 110 to each water outlet channel 140 is small, that is, the difference between the maximum and minimum values ​​of the distance from the water inlet 110 to the water outlet channel 140 is avoided to be minimized, thereby reducing the influence of flow resistance and reducing water supply differences, which helps to prevent the water outlet channel 140 farthest from the water inlet 110 from having less water output due to insufficient water supply.

[0062] In other words, this embodiment provides the water inlet 110 so that the water inlet 110 is located in the middle of the shell 100 along the width direction, which helps to reduce the distance difference from each water diversion hole 190 to the water inlet 110, thereby reducing the maximum value of the water flow loss and maintaining a large kinetic energy of the water flow. At the same time, it reduces the kinetic energy difference of the water flow under the same mass or volume conditions, reducing the difficulty of subsequent compensation adjustment.

[0063] In this embodiment, the water outlet channel 140 includes a water diversion hole 190, which connects the water inlet 110 and the expansion section 150. Two of the multiple water outlet channels 140 are respectively the first water outlet channel 200 and the second water outlet channel 210. The first water outlet channel 200 is closer to the middle of the water outlet 120 along the width direction than the second water outlet channel 210. Along the width direction, the distance from the water diversion hole 190 of the second water outlet channel 210 to the water inlet 110 is greater than the distance from the water diversion hole 190 of the first water outlet channel 200 to the water inlet 110.

[0064] In this embodiment, in theory, the length of the geometric center of the flow channel should be used as a reference standard, but it is difficult to measure in practice. The macroscopic position relationship between the water inlet 110 and the water diversion hole 190 can be used to determine it, which facilitates the subsequent parameter setting of the water diversion hole 190 and the water outlet 120.

[0065] In some specific embodiments of the present invention, the water diversion hole 190 can be a circular hole, water enters one end of the water diversion hole 190 and water exits the other end of the water diversion hole 190 . Therefore, the flow rate of the water outlet channel 140 depends on the cross-sectional area of ​​the water diversion hole 190 .

[0066] In some specific embodiments of the present invention, the water diversion hole 190 can include a groove located at the water outlet lower cover 320 and a bottom wall located at the water outlet main body 310. The groove and the bottom wall cooperate to form the water diversion hole 190, thereby reducing the difficulty of parting during injection molding, such as reducing the core pulling direction of the water outlet lower cover 320 or the water outlet main body 310 and simplifying the internal structure of the mold.

[0067] In some specific embodiments of the present invention, the cross-sectional area of ​​the water diversion hole 190 of the second water outlet channel 210 can be made larger than the cross-sectional area of ​​the water diversion hole 190 of the first water outlet channel 200. The cross-sectional area of ​​the water diversion hole 190 can be the cross-sectional area calculated by the circular hole, or the cross-sectional area of ​​the area enclosed by the intersection of the water diversion hole 190 and the water diversion channel 240. Thus, by increasing the water flow rate of the edge holes, the deceleration effect of the flow resistance on the water flow is compensated, that is, the water supply is increased to avoid the water flow of the second water outlet channel 210 being too slow, so that the water flow speeds of the first water outlet channel 200 and the second water outlet channel 210 are almost the same or tend to be consistent, thereby reducing the impact on the waterfall formation and avoiding the waterfall from narrowing too early.

[0068] That is, it is equivalent to increasing the water diversion hole 190 of the second water outlet channel 210, so that the second water outlet channel 210 has a larger flow rate, increasing the kinetic energy of the water flow in the second water outlet channel 210, compensating for the flow loss caused by the distance from the water inlet 110, and reducing the difference in water outlets of each water outlet channel 140. In particular, reducing the difference in water flow speed of each water outlet channel 140 helps prevent slow water flow from being generated at the edge of the waterfall along the width direction. The slow water flow will be driven by the fast water flow in the center of the waterfall and deviate toward the center of the waterfall, making the waterfall narrower and affecting the molding effect.

[0069] From another perspective, compared with the water outlet method of forming a waterfall with a single stream of water, the entity used to form the water outlet channel 140 also reduces the flow space of the original single stream of water, which helps to achieve the same waterfall water outlet effect with less water consumption, and has a water-saving effect, or helps to form a wider waterfall water flow under the same water inlet conditions, thereby improving the user experience.

[0070] Furthermore, the water flow velocity of the second water outlet channel 210 is equal to or even greater than the water flow velocity of the first water outlet channel 200. The water flow of the second water outlet channel 210 can flow along the original flow direction for a longer distance, thereby improving the water outlet quality and making the waterfall fall a higher distance without narrowing, thereby making the waterfall have a greater molding height, that is, making the waterfall longer, thereby improving the molding effect of the waterfall.

[0071] In some specific embodiments of the present invention, water diversion holes 190 of the same shape may be designed first, and then, based on calculations, the water diversion holes 190 may be equivalently enlarged or proportionally enlarged without changing the center position of the water diversion holes 190 to meet the area ratio requirements.

[0072] In some specific embodiments of the present invention, the cross-sectional area of ​​the water diversion hole 190 can be increased by increasing the outer contour of the groove to simplify manufacturing.

[0073] In some specific embodiments of the present invention, the sum of the cross-sectional areas of the water diversion holes 190 of the plurality of water outlet channels 140 may be greater than the cross-sectional area of ​​the water outlet 120 .

[0074] It is easy to understand that in this embodiment, the sum of the cross-sectional areas of the water diversion holes 190 of the multiple water outlet channels 140 is made larger than the cross-sectional area of ​​the water outlet 120, so that the cross-sectional area of ​​the water inlet is large and the cross-sectional area of ​​the water outlet is small, thereby maintaining the throttling acceleration effect, making the water flow at the water outlet 120 have a higher speed, delaying the gathering of the water flow, and forming a longer waterfall.

[0075] In some specific embodiments of the present invention, the sum of the cross-sectional areas of the water diversion holes 190 of the plurality of water outlet channels 140 can be made 1 to 1.5 times the cross-sectional area of ​​the water outlet 120, thereby controlling the flow channel changes within a reasonable range and avoiding excessive water flow resistance that affects the water output.

[0076] Reference Figure 4 In some specific embodiments of the present invention, the water outlet 120 can include a first water outlet section 220 having a first height dimension and a second water outlet section 230 having a second height dimension along the width direction, the first water outlet section 220 corresponds to the first water outlet channel 200, the second water outlet section 230 corresponds to the second water outlet channel 210, and the second height dimension is greater than the first height dimension.

[0077] It is easy to understand that this embodiment can increase the water outlet height of the edge holes to increase the water outlet flow rate, form a higher or thicker water flow, avoid the water flow at the edge of the waterfall being too thin and being pulled to the center of the waterfall by water tension, improve the water outlet quality, and reduce the impact on the formation of the waterfall.

[0078] In some specific embodiments of the present invention, the water outlet 120 may include a first water outlet section 220 having a first height dimension along the width direction, the first water outlet section 220 corresponds to the first water outlet channel 200, and the first height dimension is at least 0.6 mm.

[0079] It is easy to understand that this embodiment can prevent scale from clogging the water outlet path 130 by setting a minimum gap, thereby extending the service life of the water outlet device. At the same time, it is convenient to reduce the thickness of the water flow to the minimum, thereby forming a wider waterfall water flow with a smaller flow rate.

[0080] In some specific embodiments of the present invention, the distance between two adjacent water diversion holes 190 can be set to 10 mm and a plurality of water diversion holes 190 can be provided, thereby designing waterfalls of different widths to meet different usage requirements.

[0081] At the same time, since the present embodiment redistributes the water flow, the water quality is better. Therefore, there is no need to increase the water flow to ensure the water quality. Therefore, under the same water outlet width, a more perfect waterfall water shape can be formed. Compared with other waterfall shower heads, it is more water-saving.

[0082] The analysis and calculation of the water outlet flow path 130 is as follows:

[0083] Since water will flow out to the holes that are easier to flow out, in order to ensure that the water flow rate of each hole is consistent, the aperture increases from the middle to both sides, that is, the aperture increases from the water diversion hole 190 of the first water outlet channel 200 to the water diversion hole 190 of the second water outlet channel 210, and the increase ratio of the water diversion hole 190 is proportional to the distance between the water diversion hole 190 and the water inlet 110.

[0084] That is, as long as there is a difference in the distance between the water diversion hole 190 and the water inlet 110 , the water flow area of ​​the corresponding water outlet channel 130 is in a certain proportional relationship, and the same applies to each water diversion hole.

[0085] That is, the gap between the water diversion holes 190 and the water diversion holes 190 is proportional to the multiple of the aperture area, that is, the larger the distance between one water diversion hole 190 and another water diversion hole 190, the larger the multiple of the water flow area between the apertures of the two water diversion holes.

[0086] After water distribution, the water enters the expansion section 150 , where the water flow diffuses. After the water flow diffuses to a set width, the water flow is close to filling the water flow surface of the set width, and then flows into the rectification section 160 , so that the water flow becomes a laminar flow state and then flows into the water outlet 120 .

[0087] At the same time, the water outlet 120 has water outlet sections corresponding to the rectifying section 160 , and the number of the water outlet sections is consistent with the number of the water diversion ports.

[0088] There are ribs on both sides of the water outlet section, namely, separation ribs 290, which ensure that the water flow of the water outlet 120 flows in the respective water outlet sections.

[0089] When at a certain distance from the water outlet, the ribs gradually shrink to ensure that the water flow will not be interrupted after flowing out of the water outlet.

[0090] The height dimensions of the three sections of the water outlet 120 are the same from the middle to the two sides. At the same time, taking into account that water scaling may cause some water flow sections to have no water, resulting in the interruption of the waterfall water, the water flow height or height dimension of the water flow section of the water outlet 120 is minimized to 0.6mm to ensure that the water outlet 120 is affected by scale and the water flow height of the water outlet section changes, the resulting water type changes, and a more beautiful waterfall-shaped water type can be formed with a minimum amount of water.

[0091] Among them, in the formula Q=S*V, the smaller the water flow height S is, under the same conditions, a smaller flow rate can produce a flow rate V that can ensure a perfect waterfall section.

[0092] In this embodiment, the number of water diversion holes 190 is 12, the distance between two adjacent water diversion holes 190 is 20 mm, the height of the water outlet is 0.6 mm, and the corresponding water outlet area is 12 mm. 2 .

[0093] In order to avoid insufficient water flow distribution, the water flow area of ​​the two water distribution holes 190 closest to the water inlet 110 must be greater than 12mm 2 .

[0094] From the fluid mechanics parallel pipe relationship Q1*S1=Q2*S2, it can be seen that in order to ensure Q1=Q2, S1=S2 must be ensured.

[0095] According to the fluid mechanics relationship S = {λ*L / D+∑ζ}*8 / □*D4*g, λ is the resistance coefficient along the way, L is the flow distance from the water diversion hole 190 to the water inlet 110, D is the area of ​​the water outlet 120, and ∑ζ is the local resistance coefficient.

[0096] Since the multiple water outlet channels 140 are consistent, the local resistance coefficient ∑ζ is set to 0, S1=S2={λ*L1 / D1+∑ζ}*8 / □*D14*g={λ*L2 / D2+∑ζ}*8 / □*D24*g.

[0097] Because it is necessary to ensure that L1 / D1=L2 / D2, the distance between the water diversion hole 190 and the water inlet hole 110 is 10 mm, and the distance between every two water diversion holes 190 is 20 mm.

[0098] Therefore, the distances between the water diversion hole 190 on the left and the water inlet hole 110 are 30 mm, 50 mm, 70 mm, 90 mm, and 110 mm, respectively.

[0099] According to the formula, the ratio of the water inlet area needs to be 1.25, 1.38, 1.48, 1.55 and 1.62, and the corresponding water outlet section should be at least 12mm 2 , 15mm 2 、16.6mm 2 、17.8mm 2 , 18.6mm and 19.5mm 2 .

[0100] In addition, since there are more flow channel contact surfaces on both sides, the solid surface itself has a no-slip condition, and the water flow itself has viscosity, the kinetic energy E on both sides of the fluid is consumed, making the kinetic energy E1 on both sides smaller than the kinetic energy E2 in the middle section. According to the energy formula E=P*S*s (P is the dynamic pressure, S is the water flow area, and s is the water flow time), the kinetic energy is reduced due to consumption.

[0101] If the outlet cross-section S1 on both sides of the water flow is the same as the outlet cross-section S2 in the middle, the corresponding dynamic pressure P1 on both sides is smaller than the dynamic pressure P2 in the middle section according to the formula. At the same time, according to the dynamic pressure formula P = 1 / 2ρV 2(ρ is density, V is flow velocity). Since the dynamic pressure P1 on both sides is smaller than the dynamic pressure P2 in the middle part, it is determined through the relationship between pressure and flow velocity that the flow velocity V1 on both sides of the water flow is smaller than the flow velocity V2 in the middle part.

[0102] At the same time, the water flow itself is composed of molecules, and there is a relative attraction between molecules. After the water flows out of the outlet 120, due to the different flow rates and the attraction between molecules, the slow-flowing water flow continuously drags the fast-flowing water flow to slow down, and the water flow continuously converges. The farther the water flow section flows out, the more it converges toward the center, forming a triangular shape.

[0103] In order to ensure that there is more energy on both sides of the water flow to offset the energy loss caused by the viscosity of the water flow, according to the fluid mechanics fluid loss energy formula E = λ * L / d * V2 / 2g, the energy formula E = P * S * s, it is necessary to ensure that the water flow area of ​​the water diversion holes 190 on both sides of the shell 100 is within the area described above 19.5mm 2 The specific value of the water flow area is λ*L / d*V2 / 2g=P*S*s=1 / 2ρV*S*s, that is, the cross-sectional area of ​​the water diversion hole 190 of the second water outlet channel 210 is increased.

[0104] In order to ensure the turbulent state of the water flow, the flow channel length of the water outlet 110 is currently set to 30mm. According to the above, the water flow height of the water flow section of the water outlet 120 is 0.6mm. According to the equation relationship and the setting conditions, the water flow area of ​​the water diversion hole 190 of the second water outlet channel 210 needs to be increased to 21.3mm. 2 .

[0105] In some other solutions, the cross-sectional area or water flow area from the water diversion hole 190 of the first water outlet channel 200 to the water diversion hole 190 of the second water outlet channel 210 should be at least 12 mm 2 , 15mm 2 、16.6mm 2 、17.8mm 2 、18.6mm 2 and 19.5mm 2 .

[0106] Correspondingly, the minimum cross-sectional area or water flow area from the water diversion hole 190 of the first water outlet channel 200 to the water diversion hole 190 of the second water outlet channel 210 on the right side should be 12 mm 2 , 15mm 2 、16.6mm 2 、17.8mm 2 、18.6mm 2 and 19.5mm 2 .

[0107] At this time, a part of the water flow in the middle flows along the slope to both sides to achieve the effect of reinforcing the kinetic energy loss on both sides, that is, reducing the kinetic energy E3 of the water in the central section to make it flow to both sides. The kinetic energy of the central section is E1-E3, and the kinetic energy on both sides is E1+E3, ensuring that the kinetic energy loss on both sides is compensated.

[0108] The compensated kinetic energy on both sides E1+E3 also needs to deduct the energy loss E4 caused by the viscosity of water, that is, the kinetic energy on both sides is E1+E3-E4, and the kinetic energy in the middle is E1-E3.

[0109] According to the energy formula E = P*S*s and the relationship between dynamic pressure and flow velocity P = 1 / 2ρV 2 At the same time, in order to achieve V1=V2, it is also necessary to ensure that (E1+E3-E4) / S1=(E1-E3) / S2, that is, (E1+E3-E4) / (E1-E3)=S1 / S2.

[0110] To ensure that the equation holds, it is also necessary to ensure that E3 = E4. Therefore, the energy loss formula generated by the fluid and the wall is E4 = λ*L / d*V2 / 2g (λ is the resistance coefficient along the path, L is the flow path length, d is the pipe diameter, and V is the flow velocity);

[0111] In addition, considering that water scaling may cause some water flow sections to have no water and result in the interruption of waterfall water, the water flow height of the water outlet cross-section is minimized to 0.6mm.

[0112] The formulas listed above need to ensure that E3=E4, E4=λ*L / d*V2 / 2g and that E3 is the energy difference between the energy E2 on both sides and the energy reduced by the center segment (i.e. the energy in the center moves to both sides).

[0113] From the relationship, we can conclude that E3=E1-E2=1 / 2ρV*(S1-S2)=λ*L / d*V2 / 2g. The resistance coefficient along the way is related to the material and surface roughness. The fluid mechanics test shows that λ is about 0.2, the water flow channel length is 0.003m (ie 30mm), and the water flow width in the middle is 0.0006m (ie 0.6mm). The theoretical optimal water outlet width on both sides is 0.0011m (1.1mm), and the water outlet pattern is optimal at this time.

[0114] Accordingly, the width of the water flow of the water outlet device of this embodiment can reach more than 200 mm and maintain a beautiful waterfall water outlet shape. In other words, when the water outlet width is greater than 200 mm, the beautiful waterfall water outlet shape can be maintained after the water volume reaches a certain level.

[0115] In some specific embodiments of the present invention, the water outlet channel 140 may further include a connecting port 250 connecting the water diversion hole 190 and the expansion section 150 , and the connecting ports 250 of the plurality of water outlet channels 140 may be arranged at the same height along the height direction.

[0116] It is easy to understand that this embodiment can reduce the difference in water flow parameters, especially the impact of water flow potential energy, by setting the connecting port 250 at the same height, making it easier to control the water output by adjusting the water diversion hole 190, reducing influencing factors, and facilitating design and verification.

[0117] In some specific embodiments of the present invention, a connecting port 250 may be provided on the bottom wall of the small end 180 of the extension section 150 to prevent water from entering the extension section 150 from different directions, thereby reducing the influence of potential energy difference on the flow of water.

[0118] In some specific embodiments of the present invention, the extension section 150 can be located at the top of the water diversion hole 190, so that the water outlet body 310 can be used to form the water holding portion of the extension section 150, and the water outlet lower cover 320 can be used to form the water holding portion of the water diversion hole 190, thereby reducing the manufacturing difficulty and making it convenient for the water flow to have the same potential energy.

[0119] In some specific embodiments of the present invention, the water outlet body 310 is provided with a gradually expanding groove 330 , and the top surface of the water outlet lower cover 320 cooperates with the gradually expanding groove 330 to form an expansion section 150 .

[0120] Reference Figure 5 and Figure 6 In some specific embodiments of the utility model, in the width direction, the expansion section 150 can include two opposite side walls 260 arranged at an angle, the side with a smaller distance between the two side walls 260 forms a small end 180, and the side with a larger distance between the two side walls 260 forms a large end 170, and the side wall 260 includes a plane wall or a curved wall.

[0121] It is easy to understand that, in this embodiment, by providing two side walls 260 arranged at an angle, the cross-sectional area of ​​the expansion section 150 is increased in the direction of water flow, and the dimension in the width direction is increased, which helps to increase the width of the formed waterfall water flow.

[0122] In some specific embodiments of the present invention, the included angle can be an acute angle, a right angle, an obtuse angle, etc., which is set according to the water flow rate and water outlet requirements.

[0123] In some specific embodiments of the present invention, the arc surface wall can be a circular arc surface, a parabola, etc., which is determined according to the influence of flow resistance.

[0124] In some specific embodiments of the present invention, the rectifying section 160 can include a front rectifying portion 270 and a rear rectifying portion 280 arranged in sequence along the water flow direction. Along the height direction, the height dimension of the front rectifying portion 270 is equal to the height dimension of the extension section 150, and the height dimension of the rear rectifying portion 280 is greater than the height dimension of the extension section 150.

[0125] It is easy to understand that, in this embodiment, by setting the rectifying section 160, the rectifying section 160 has a front rectifying portion 270 and a rear rectifying portion 280, which also facilitates the gradual change of the water flow from turbulent flow to laminar flow, makes the water flow tend to be smooth, makes the water flow pure, makes the waterfall water flow crystal clear, and the water shape is excellent.

[0126] In some specific embodiments of the present invention, the water outlet body 310 may be provided with a pit to form a rear rectifying portion 280 , so that the height of the rear rectifying portion 280 is greater than the height of the extension section 150 , thereby reducing manufacturing difficulty.

[0127] In some specific embodiments of the present invention, the height dimension of the rectifying section 160 can be made greater than the height dimension of the water outlet 120, thereby ensuring that the water flow cross-sectional area becomes smaller when the water flows from the rectifying section 160 into the water outlet 120, which helps to increase the water flow speed, form a stable waterfall water flow, and extend the length of the waterfall.

[0128] Reference Figure 5 In some specific embodiments of the present invention, at least one dividing rib 290 may be provided in the water outlet 120. The dividing rib 290 is used to separate the water outlet 120 into at least two water outlet sections along the width direction. Each water outlet section is connected to at least one rectifying section 160. The dividing rib 290 is extended along the water flow direction.

[0129] It is easy to understand that, in this embodiment, by providing the dividing rib 290 , the arrangement of the water outlet channel 140 can be simplified, and the shape of the dividing rib 290 can be used to form the rectifying section 160 .

[0130] In some specific embodiments of the present invention, the dividing rib 290 can be arranged along the water inlet side of the water diversion hole 190. At the same time, a positioning groove is provided on the water outlet body 310 to facilitate the assembly of the water outlet body 310 and the water outlet lower cover 320 by using the matching of the dividing rib 290 and the positioning groove, thereby avoiding the occurrence of improper installation.

[0131] In some specific embodiments of the present invention, the separation ribs 290 may be used to cooperate with the flow straightening section 160 to simplify the arrangement of the entire water outlet channel 140 .

[0132] In some specific embodiments of the present invention, the thickness of the separation rib 290 can be reduced along the water flow direction.

[0133] It is easy to understand that in this embodiment, the thickness of the dividing rib 290 is thinned along the direction of the water flow. Therefore, under the action of the water flow being adhered by the dividing rib 290, the edges of the two water flows are close to each other, which helps to prevent the water flows out of each water outlet channel 140 from flowing out of the water outlet 120 in a separated form.

[0134] In some specific embodiments of the present invention, a gap 300 may be provided at one end of the dividing rib 290 along the water flow direction, and the gap 300 connects two adjacent water outlet sections.

[0135] It is easy to understand that, in this embodiment, the gap 300 is provided, that is, the dividing rib 290 is prevented from extending to the outside of the water outlet 120, and the water flows of each water outlet channel 140 are contacted first to form a complete waterfall.

[0136] In this embodiment, the dividing rib 290 used to form the rectifying section 160 and the dividing rib 290 used to form the water outlet section are marked with the same mark because the two can be manufactured with the same rib, which simplifies the structure and reduces the difficulty of manufacturing.

[0137] In some specific embodiments of the present invention, the water outlet 120 can be tilted downward, thereby improving the water outlet direction, making the angle between the water outlet speed and the gravity direction an acute angle, avoiding water spilling and improving the quality of waterfall water outlet.

[0138] In some specific embodiments of the present invention, an inner circular surface concave position can be formed in the scheme of the inclined water outlet 120, and the inner circular surface concave position is arranged at the junction of the inclined water outlet 120 and the rectifying section 160, so as to facilitate the formation of the rear rectifying part 280 and simplify the manufacturing at the same time.

[0139] Specifically, in the present invention, water enters the bottom of the water diversion channel 240 from the water inlet 110, fills the water diversion channel 240, and then flows up to the water outlet channel 140, that is, flows up to each water diversion hole 190, and the water flows through the water diversion hole 190 to the expansion section 150, and then the water flows into the rectifying section 160 after diffusion through the expansion section 150. In the rectifying section 160, the water flow becomes gentle, and then the water flow flows gently into the water outlet section of the water outlet 120, and after the flow rate is adjusted, the water flows out from the water outlet 120. The water flows out from the water outlet 120. At the same time, due to the difference in the apertures of the water diversion holes 190, the water flow at the water diversion hole 190 closer to the water inlet 190, that is, the water flow that should enter the first water outlet channel 200 is distributed to the second water outlet channel 210, to make up for the problem that the second water outlet channel 210 has a large kinetic energy loss due to the long flow path, so that the speed of the water flow flowing out of each rectifying section 160 is similar, ensuring that the water flow speed at the water outlet 120 is uniform and in a laminar state.

[0140] In the description of this specification, the description with reference to the terms "one embodiment, some embodiments, illustrative embodiments, examples, specific examples or some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0141] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. A water outlet device, characterized in that: include: A housing (100) having a water inlet (110) and a water outlet (120), the housing (100) having a height direction and a width direction, and a dimension of the water outlet (120) along the height direction is smaller than a dimension of the water outlet (120) along the width direction; A water outlet flow path (130) for connecting the water inlet (110) and the water outlet (120), the water outlet flow path (130) comprising a plurality of water outlet channels (140), the plurality of water outlet channels (140) being arranged side by side along the width direction; The water outlet channel (140) comprises an expansion section (150) and a rectification section (160) which are connected in sequence along the water flow direction; the two ends of the expansion section (150) along the water flow direction are respectively a small end (180) and a large end (170); the cross-sectional area of ​​the large end (170) is larger than the cross-sectional area of ​​the small end (180); and along the width direction, the size of the large end (170) is equal to that of the rectification section (160).

2. A water outlet device according to claim 1, characterized in that: The water inlet (110) is located in the middle of the shell (100) along the width direction; the water outlet channel (140) comprises a water diversion hole (190); the water diversion hole (190) is connected to the water inlet (110) and the expansion section (150); two of the plurality of water outlet channels (140) are respectively a first water outlet channel (200) and a second water outlet channel (210); the first water outlet channel (200) is closer to the middle of the water outlet (120) along the width direction than the second water outlet channel (210); along the width direction, the distance from the water diversion hole (190) of the second water outlet channel (210) to the water inlet (110) is greater than the distance from the water diversion hole (190) of the first water outlet channel (200) to the water inlet (110).

3. A water outlet device according to claim 2, characterized in that: The cross-sectional area of ​​the water diversion hole (190) of the second water outlet channel (210) is greater than the cross-sectional area of ​​the water diversion hole (190) of the first water outlet channel (200).

4. A water outlet device according to claim 2, characterized in that: The sum of the cross-sectional areas of the water diversion holes (190) of the plurality of water outlet channels (140) is greater than the cross-sectional area of ​​the water outlet (120).

5. A water outlet device according to claim 4, characterized in that: The sum of the cross-sectional areas of the water diversion holes (190) of the plurality of water outlet channels (140) is 1 to 1.5 times the cross-sectional area of ​​the water outlet (120).

6. A water outlet device according to claim 2, characterized in that: The water outlet (120) comprises, along the width direction, a first water outlet section (220) having a first height dimension and a second water outlet section (230) having a second height dimension, the first water outlet section (220) corresponding to the first water outlet channel (200), the second water outlet section (230) corresponding to the second water outlet channel (210), and the second height dimension is greater than the first height dimension.

7. A water outlet device according to claim 2, characterized in that: The water outlet (120) comprises a first water outlet section (220) having a first height dimension along the width direction, the first water outlet section (220) corresponds to the first water outlet channel (200), and the first height dimension is at least 0.6 mm.

8. A water outlet device according to claim 2, characterized in that: The water outlet flow path (130) comprises a water diversion channel (240), the water diversion channel (240) is arranged to extend along the height direction, the bottom of the water diversion channel (240) is connected to the water inlet (110), and the top of the water diversion channel (240) is connected to at least one water diversion hole (190) of the water outlet channel (140).

9. A water outlet device according to claim 2, characterized in that: The water outlet channel (140) further comprises a communication port (250) connecting the water diversion hole (190) and the expansion section (150); along the height direction, a plurality of communication ports (250) of the water outlet channels (140) are arranged at the same height.

10. A water outlet device according to claim 9, characterized in that: The communicating port (250) is provided on the bottom wall of the small end (180) of the expansion section (150).

11. A water outlet device according to claim 1, characterized in that: In the width direction, the expansion section (150) comprises two opposite side walls (260) arranged at an angle, the side with a smaller distance between the two side walls (260) forms the small end (180), and the side with a larger distance between the two side walls (260) forms the large end (170), and the side wall (260) comprises a plane wall or a curved wall.

12. A water outlet device according to claim 1, characterized in that: The rectifying section (160) comprises a front rectifying portion (270) and a rear rectifying portion (280) which are arranged in sequence along the water flow direction; along the height direction, the height dimension of the front rectifying portion (270) is equal to the height dimension of the expansion section (150), the height dimension of the rear rectifying portion (280) is greater than the height dimension of the expansion section (150), and / or the height dimension of the rectifying section (160) is greater than the height dimension of the water outlet (120).

13. A water outlet device according to any one of claims 1 to 12, characterized in that: At least one dividing rib (290) is arranged in the water outlet (120), and the dividing rib (290) is used to divide the water outlet (120) into at least two water outlet sections along the width direction, and each of the water outlet sections is connected to at least one of the rectifying sections (160). The dividing rib (290) is extended along the water flow direction, wherein the thickness of the dividing rib (290) is reduced along the water flow direction, and / or a notch (300) is arranged at one end of the dividing rib (290) along the water flow direction, and the notch (300) connects two adjacent water outlet sections.

14. A water outlet device according to any one of claims 1 to 12, characterized in that: The shell (100) comprises a water outlet body (310) and a water outlet lower cover (320), wherein the water outlet body (310) is located at the top of the water outlet lower cover (320), and the water outlet body (310) and the water outlet lower cover (320) cooperate to form the water outlet flow path (130), wherein one of the water outlet body (310) and the water outlet lower cover (320) is provided with a gradually expanding groove (330), and the other of the water outlet body (310) and the water outlet lower cover (320) cooperates with the gradually expanding groove (330) to form the expansion section (150); and / or one of the water outlet body (310) and the water outlet lower cover (320) is provided with a dividing rib (290), and the other of the water outlet body (310) and the water outlet lower cover (320) cooperates with the dividing rib (290) to form the straightening section (160).

15. A shower head, characterized in that: It comprises the water outlet device according to any one of claims 1 to 14.

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