Flow-increasing drainage head and drainage valve
By introducing a guide channel or guide rib structure into the drain valve, a downward rotating vortex is formed, which solves the problem of slow speed of traditional drain valves, realizes higher speed water flow flushing, improves the flushing effect of bathroom fixtures and saves water.
Patent Information
- Application Number
- CN202422897142.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-26
- Publication Date
- 2025-11-18
- Estimated Expiration
- 2034-11-26
AI Technical Summary
Traditional drain valves do not drain fast enough, resulting in poor rinsing of bathroom fixtures, mainly due to turbulent water flow and the tendency to create localized vacuum adsorption effects.
A flow-enhancing drainage head is designed by setting a first flow-guiding structure in the drainage hole, including multiple flow-guiding grooves or flow-guiding ribs arranged at intervals around the axis, to guide the water flow to form a rotating downward vortex, thereby breaking the local vacuum adsorption effect and increasing the water flow velocity.
It enhances the rinsing effect of bathroom fixtures, increases rinsing speed, reduces water consumption, and improves rinsing performance.
Smart Images
Figure CN223562249U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of bathroom sanitary wares, especially to a flow-increasing drain head and a drain valve. BACKGROUND
[0002] In the bathroom sanitary wares industry, such as toilet, wall-hung cistern, hidden cistern, etc., the "drain valve" inside the bathroom sanitary wares product is the key component responsible for flushing excrement into the sewer, and the flushing effect of the product is directly related to the flushing cleanliness, while the flushing effect is largely determined by the drain flow. With the same water consumption, if the drain rate of the drain valve increases, it can form greater flushing pressure.
[0003] The traditional drain valve usually includes a drain head and a switch mechanism for controlling the drainage of the drain head, and the drain head is usually straight, i.e., the drain hole inside the drain head extends along a straight line. Since the drain valve is installed in the cistern, and the cross section of the cistern is much larger than the diameter of the drain hole, at the moment the existing drain valve is opened, the water around will rush to the upper end of the drain hole, and then be discharged from the lower end of the drain hole through the drain hole. During this process, the water flow is very turbulent and irregular. In addition, when a large amount of water in the cistern enters the relatively narrow drain hole, it is easy to form a local vacuum suction effect (such as a full water mineral water bottle is inverted and then opened at the moment to form a local vacuum suction effect to cause low drain speed), which results in that the drain speed of the existing drain head is not fast enough. SUMMARY
[0004] The utility model aims at solving one of the technical problems existing in the prior art. To this end, the utility model provides a flow-increasing drain head, which can change the water flow passing through the flow-increasing drain head from an irregular turbulent state to a regular downward rotating vortex, thereby improving the drain speed, and ultimately enabling the bathroom sanitary wares using the flow-increasing drain head to flush with a higher water flow, thereby improving the flushing effect of the bathroom sanitary wares.
[0005] The utility model also provides a drain valve with the above-mentioned flow-increasing drain head.
[0006] According to the flow-increasing drain head of the first aspect embodiment of the utility model, the main body is provided with a drain hole, and a first flow guide structure is arranged in the drain hole; wherein the first flow guide structure includes a plurality of flow guide grooves arranged at intervals around the axis of the drain hole, and the flow guide grooves are used to drive the water passing through the flow guide grooves to produce a rotating downward motion to increase the water flow speed.
[0007] The flow-increasing drainage head has at least the following beneficial effects: the flow-increasing drainage head provided by the utility model has a first flow guide structure arranged on the inner wall of the drainage hole, the first flow guide structure can generate vortex effect, so that the water flow passing through the first flow guide structure changes from irregular turbulent state to regular downward vortex, and the effect of local vacuum adsorption is destroyed, thereby, through the vortex speed increasing effect of the first flow guide structure, the water flow speed is finally increased, the speed of drainage is improved, and therefore, when the sanitary wares adopt the flow-increasing drainage head provided by the utility model, the sanitary wares can be flushed with higher speed water flow in the flushing moment, and the flushing effect of the sanitary wares is improved.
[0008] According to some embodiments of the utility model, the flow guide groove is arranged spirally.
[0009] According to some embodiments of the utility model, the flow guide groove is arranged on the inner wall of the drainage hole, and the inner wall of the drainage hole forms a flow guide part between two adjacent flow guide grooves; or, the first flow guide structure comprises a plurality of flow guide ribs arranged spirally, the flow guide ribs are arranged on the inner wall of the drainage hole, and the flow guide groove is formed by the inner wall of the drainage hole and the corresponding two adjacent flow guide ribs.
[0010] According to some embodiments of the utility model, the rotation direction of the flow guide groove is counterclockwise or clockwise.
[0011] According to some embodiments of the utility model, the distance between the bottom wall of the flow guide groove and the axis of the drainage hole gradually decreases along the drainage direction of the drainage hole.
[0012] According to some embodiments of the utility model, the outer diameter of one end of the main body is 2 inches or 3 inches.
[0013] According to some embodiments of the utility model, one end of the main body is provided with a pipeline connecting structure.
[0014] According to some embodiments of the utility model, the pipeline connecting structure comprises a threaded stud and a bottom hook, the threaded stud is connected with the main body, the bottom hook is screwed on the threaded stud, and the bottom hook is arranged opposite to the drainage hole.
[0015] According to some embodiments of the utility model, the pipeline connecting structure comprises a connecting thread arranged on the main body.
[0016] According to some embodiments of the utility model, it can be applied to a cylindrical drainage valve or a floating paddle type drainage valve.
[0017] The drainage valve according to the second aspect of the utility model comprises the flow-increasing drainage head.
[0018] The drainage valve has at least the following beneficial effects: the drainage valve provided by the utility model can improve the drainage speed, and thus when the sanitary wares adopt the drainage valve provided by the utility model, the sanitary wares can be flushed with a higher speed of water flow at the flushing moment, and the flushing effect of the sanitary wares is improved.
[0019] Additional aspects and advantages of the utility model will be in part apparent and in part pointed out hereinafter in the description. BRIEF DESCRIPTION OF DRAWINGS
[0020] The above and / or additional aspects and advantages of the utility model will become apparent and be readily appreciated from the following description, including the appended drawings.
[0021] Figure 1 It is a schematic view of the flow-increasing drainage head (applicable to the float paddle type drainage valve and the flow guide groove is recessed on the inner wall of the drainage hole, with connecting threads) of the utility model embodiment;
[0022] Figure 2 It is a schematic view of the flow-increasing drainage head (applicable to the float paddle type drainage valve and the flow guide groove is recessed on the inner wall of the drainage hole, with connecting threads) of the utility model embodiment;
[0023] Figure 3 It is a schematic view of the flow-increasing drainage head (applicable to the float paddle type drainage valve and the flow guide groove is recessed on the inner wall of the drainage hole, with connecting threads) of the utility model embodiment;
[0024] Figure 4 It is a schematic view of the flow-increasing drainage head (applicable to the float paddle type drainage valve and the flow guide groove is recessed on the inner wall of the drainage hole, with connecting threads) of the utility model embodiment;
[0025] Figure 5 It is a schematic view of the flow-increasing drainage head (applicable to the float paddle type drainage valve and the flow guide groove is recessed on the inner wall of the drainage hole, with connecting threads) of the utility model embodiment; Figure 4 It is a sectional view of the flow-increasing drainage head;
[0026] Figure 6 It is a schematic view of the flow-increasing drainage head (applicable to the float paddle type drainage valve and the flow guide groove is recessed on the inner wall of the drainage hole, with connecting threads) of the utility model embodiment; Figure 3 It is a schematic view of the flow-increasing drainage head (applicable to the float paddle type drainage valve and the flow guide groove is recessed on the inner wall of the drainage hole, with connecting threads) of the utility model embodiment;
[0027] Figure 7 It is a schematic view of the flow-increasing drainage head (applicable to the float paddle type drainage valve and the flow guide groove is recessed on the inner wall of the drainage hole, with connecting threads) of the utility model embodiment;
[0028] Figure 8 It is a schematic view of the flow-increasing drainage head (applicable to the float paddle type drainage valve and the flow guide groove is recessed on the inner wall of the drainage hole, with connecting threads) of the utility model embodiment;
[0029] Figure 9 This is a schematic diagram of a flow-boosting drain head (suitable for cylindrical drain valves, with a flow guide groove recessed on the inner wall of the drain hole and a connecting thread) according to an embodiment of the present utility model.
[0030] Figure 10 This is a schematic diagram of a flow-boosting drain head (suitable for cylindrical drain valves, with the flow guide protruding from the inner wall of the drain hole and having a connecting thread) according to an embodiment of this utility model.
[0031] Figure 11 for Figure 9 A cross-sectional view of the flow booster head is shown;
[0032] Figure 12 This is a schematic diagram of a drain valve (a cylindrical drain valve with a connecting thread for increasing flow and drain head) according to an embodiment of the present utility model.
[0033] Figure 13 This is a schematic diagram of a drain valve (a cylindrical drain valve with a bottom hook installed on the flow-increasing drain head) according to an embodiment of the present utility model.
[0034] Figure 14 for Figure 11 A schematic diagram of the opening and closing mechanism of the drain valve is shown.
[0035] Figure 15 for Figure 12 A cross-sectional view of the flow booster head is shown;
[0036] Figure 16 This is a schematic diagram of a drain valve (a float-type drain valve with a connecting thread for increasing flow and drain head) according to an embodiment of this utility model.
[0037] Figure 17 This is a schematic diagram of a drain valve (a float-type drain valve with a bottom hook installed on the flow-increasing drain head) according to an embodiment of this utility model.
[0038] Figure 18 for Figure 15 The diagram shows a drain valve (with a second flow guiding structure on the cover).
[0039] Cylindrical drain valve 01, float-type drain valve 02, main body 110, drain hole 111, first flow guiding structure 112, flow guiding groove 1121, flow guiding part 1122, flow guiding rib 1123, pipe connection structure 113, stud 1131, bottom hook 1132, connecting thread 1133, connecting part 120, clearance hole 121, water inlet 122, slot 123, mounting part 130, connecting arm 131, switch mechanism 200, cover 210, buoyancy part 211, second flow guiding structure 220, flow guiding blade 221, outer cylinder 230, locking part 231, operating part 240, transmission assembly 250, rotating arm 260. Detailed Implementation
[0040] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.
[0041] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0042] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.
[0043] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.
[0044] Reference Figures 1 to 4 , Figures 7 to 10 According to a first aspect embodiment of the present invention, the flow-increasing drain head includes a main body 110, the main body 110 is provided with a drain hole 111, and a first flow-guiding structure 112 is provided in the drain hole 111; wherein, the first flow-guiding structure 112 includes a plurality of flow-guiding grooves 1121 arranged at intervals around the axis of the drain hole 111, and the flow-guiding grooves 1121 are used to drive the water passing through the flow-guiding grooves 1121 to generate a downward rotating motion to increase the water flow velocity.
[0045] The flow-increasing drainage head provided by the utility model, the inner wall of the drainage hole 111 is provided with the first flow guide structure 112, the first flow guide structure 112 can play the vortex effect, so that the water flow flowing through the first flow guide structure 112 changes from the irregular turbulent state into the vortex rotating downward regularly, at the same time, the center of the vortex is usually a through hole without water flow to destroy the effect of local vacuum adsorption, thereby, through the vortex speed increasing effect of the first flow guide structure 112, the water flow speed is finally increased, the speed of drainage is improved, when the sanitary wares adopt the flow-increasing drainage head provided by the utility model, the sanitary wares can flush with the water flow at a higher speed in the flushing moment, the flushing effect of the sanitary wares is improved, the water flow required for flushing is reduced, and water saving is realized.
[0046] With reference to Figure 1 , Figure 3 , Figure 7 and Figure 9 , according to some embodiments of the utility model, the flow guide groove 1121 is arranged spirally to effectively guide the water flow passing through the flow guide groove 1121 to form the vortex rotating downward.
[0047] It should be noted that, in some other embodiments, the flow guide groove 1121 can also be arranged linearly and inclined relative to the axis of the drainage hole 111, thereby, the flow guide groove 1121 can also guide the water flow passing through the flow guide groove 1121 to form the vortex rotating downward.
[0048] With reference to Figure 1 , Figure 3 , Figure 7 and Figure 9 , according to some embodiments of the utility model, the flow guide groove 1121 is recessed on the inner wall of the drainage hole 111, the inner wall of the drainage hole 111 forms the flow guide part 1122 between the adjacent two flow guide grooves 1121, and the first flow guide structure 112 can be formed by the main body 110 through stamping and other processes by adopting this arrangement mode.
[0049] With reference to Figure 2 , Figure 4 , Figure 8 and Figure 10 , in some other embodiments, the first flow guide structure 112 includes a plurality of flow guide ribs 1123 arranged spirally, the flow guide rib 1123 is arranged on the inner wall of the drainage hole 111, and the flow guide groove 1121 is formed by the corresponding adjacent two flow guide ribs 1123 and the inner wall of the drainage hole 111, wherein the inner diameter of the drainage hole 111 gradually decreases along the drainage direction at the position where the flow guide rib 1123 is arranged, and by adopting this arrangement mode, the flow guide rib 1123 can be formed together with the main body 110 through die casting, injection molding or other processes in the production process.
[0050] With reference to Figure 5 andFigure 11 According to some embodiments of the utility model, the distance between the bottom wall of the flow guide groove 1121 and the axis of the drain hole 111 gradually decreases along the drainage direction of the drain hole 111. According to the principle of fluid mechanics, the vortex formed by the water flow passing through the drain hole 111 gradually decreases in diameter along the drainage direction of the drain hole 111. By the above arrangement, the flow guide groove 1121 adapts to the change in the diameter of the vortex, so that the first flow guide structure 112 can better guide the water flow to form a vortex, thereby further improving the drainage speed.
[0051] Referring to Figure 5 and Figure 11 According to some embodiments of the utility model, the distance s between the flow guide part 1122 (or the flow guide rib 1123) and the axis of the drain hole 111 remains unchanged or gradually increases along the drainage direction of the drain hole 111. According to the principle of fluid mechanics, the vortex formed by the water flow passing through the drain hole 111 gradually decreases in diameter along the drainage direction of the drain hole 111. The utility model keeps the distance s between the flow guide part 1122 and the axis of the drain hole 111 unchanged or gradually increases along the drainage direction of the drain hole 111, so that one end of the flow guide part 1122 away from the water inlet end of the drain hole 111 avoids the vortex, reducing the resistance of the flow guide part 1122 to the vortex, thereby further improving the drainage speed.
[0052] It can be imagined that the above-mentioned first flow guide structure 112 can also adopt other arrangement modes, for example, the first flow guide structure 112 can include a flow guide ring, the above-mentioned flow guide groove 1121 and flow guide part 1122 are formed on the inner wall of the flow guide ring, and the flow guide ring is located in the drain hole 111 and abuts against the inner wall of the drain hole 111. In the production process, the flow guide ring and the drain hole 111 are formed respectively, and then assembled together. By adopting this arrangement mode, the outer diameter of the flow guide ring can be adapted to the drain hole 111 of the existing drain head, so that the drain hole 111 of the existing drain head can be installed with the flow guide ring, realizing upgrading.
[0053] Referring to Figures 12 to 15 According to some embodiments of the utility model, the above-mentioned flow-increasing drain head can be applied to the cylindrical drain valve 01. Wherein, the outer shape of the opening and closing mechanism 200 of the cylindrical drain valve 01 is cylindrical.
[0054] Referring to Figures 16 to 18 In some other embodiments, the above-mentioned flow-increasing drain head can also be applied to the float paddle type drain valve 02. Wherein, the opening and closing mechanism 200 of the float paddle type drain valve 02 is arranged in the form of a float paddle.
[0055] It should be noted that the flow-increasing drain head provided by the utility model can also be applied to other forms of drain valves other than cylindrical and float paddle type.
[0056] In the prior art, the drain head size of drain valves is usually 2 inches or 3 inches, that is, the outer diameter of the end of the drain head used to install on the pipe is 2 inches or 3 inches.
[0057] Similarly, the main body 110 of the flow-boosting drain head provided by this utility model can also be set to a size of 2 inches or 3 inches to adapt to the pipes in existing bathroom fixtures. Specifically, the end of the main body 110 that discharges water (i.e. Figure 5 and Figure 11 The outer diameter D of the lower end of the main body 110 is 2 inches or 3 inches.
[0058] Of course, it is conceivable that the flow-boosting drain head provided by this utility model can also be set to other sizes and models according to actual needs.
[0059] According to some embodiments of the present invention, the rotation direction of the guide groove 1121 can be set to counterclockwise, and correspondingly, the rotation direction of the guide part 1122 is also counterclockwise.
[0060] It is conceivable that in some other embodiments, the rotation direction of the guide groove 1121 may also be set to clockwise, and correspondingly, the rotation direction of the guide portion 1122 is also clockwise.
[0061] Reference Figure 1 , Figure 6 According to some embodiments of the present invention, a pipe connection structure 113 is provided at one end of the main body 110, thereby facilitating the connection between the flow-increasing drainage head provided by the present invention and the pipe.
[0062] Figures 4 to 6 According to some embodiments of this utility model, the pipe connection structure 113 includes a stud 1131 and a bottom hook 1132. The stud 1131 is connected to the main body 110, and the bottom hook 1132 is screwed onto the stud 1131. The bottom hook 1132 is arranged opposite to the drain hole 111, and the bottom hook 1132 can rotate spirally around the stud 1131, thereby adjusting the distance between the bottom hook 1132 and the main body 110. In specific implementation, the bottom hook 1132 usually extends into the pipe from the pipe interface and is locked at the position where the internal dimensions of the pipe change. By rotating the main body 110, the bottom hook 1132 rotates relative to the stud 1131, thereby driving the main body 110 to move closer to or away from the pipe interface, thereby fixing the drain head to the pipe or detaching the drain head from the pipe.
[0063] according to Figure 5The direction shown, the axis of the drain hole 111 is along the up-down direction, the drainage direction of the drain hole 111 is from up to down, the water inlet end of the drain hole 111 is the upper end of the drain hole 111, and the water outlet end of the drain hole 111 is the lower end of the drain hole 111, at this time, the opening and closing mechanism 200 of the drain valve is located on the upper side of the main body 110, and the bottom hook 1132 is located on the lower side of the main body 110.
[0064] With reference to Figure 3 , Figure 6 and Figure 7 , according to some embodiments of the utility model, when the pipeline connecting structure 113 adopts the bottom hook 1132 form, the lower side of the main body 110 is provided with a mounting portion 130, the mounting portion 130 is connected to the main body 110 through two or more connecting arms 131, and the stud 1131 is mounted on the mounting portion 130.
[0065] The pipeline connecting structure 113 can also adopt other setting modes, for example, with reference to Figure 1 , Figure 9 , according to some embodiments of the utility model, the pipeline connecting structure 113 can include a connecting thread 1133 arranged on the main body 110, and the connecting thread 1133 can be an external thread or an internal thread.
[0066] With reference to Figure 12 and Figure 16 , according to the drain valve of the second aspect embodiment of the utility model, the drain valve includes the flow-increasing drain head described above. The drain valve provided by the utility model can improve the drainage speed by adopting the flow-increasing drain head, so that when the sanitary ware adopts the drain valve provided by the utility model, the sanitary ware can perform flushing at a higher speed of water flow in the flushing moment, thereby improving the flushing effect of the sanitary ware and reducing the water flow required for flushing, so as to achieve water saving.
[0067] With reference to Figure 12 and Figure 18According to some embodiments of the utility model, the drainage valve further comprises a switch mechanism 200, the switch mechanism 200 is located at one side of the main body 110, the switch mechanism 200 is connected with the main body 110, the switch mechanism 200 is provided with a cover 210, the cover 210 can be away from or close to the drain hole 111 to open or close the drain hole 111, the side of the cover 210 towards the main body 110 is provided with a second flow guide structure 220, and the second flow guide structure 220 is used for cooperating with the first flow guide structure 112 to drive the water flow entering the drain hole 111 to rotate. Thus, the drainage valve is installed behind the water tank, when the cover 210 of the switch mechanism 200 is away from the drain hole 111 to open the drain hole 111, the water in the water tank flows into the upper end of the drain hole 111, in this process, the first flow guide structure 112 drives the water flow between the cover 210 and the drain hole 111 to rotate from below, the second flow guide structure 220 drives the water flow between the cover 210 and the drain hole 111 to rotate in the same direction from above, the vortex effect is improved, and the drainage speed is further improved.
[0068] With reference to Figure 14 , Figure 15 and Figure 18 , in some embodiments, the second flow guide structure 220 comprises a flow guide wheel in the shape of a cone, the flow guide wheel is provided with flow guide blades 221 extending in a spiral on the outer periphery of the flow guide wheel, the flow guide wheel can be fixedly installed on the cover 210 or rotatably installed on the cover 210, and the flow guide wheel and the cover 210 can be formed separately in the production process.
[0069] In other embodiments, the second flow guide structure 220 can also comprise a plurality of flow guide blades 221 arranged in the shape of a vortex, the flow guide blades 221 are protrudingly arranged on the side of the cover 210 towards the drain hole 111, and the flow guide blades 221 and the cover 210 can be integrally formed in the production process.
[0070] In the specific implementation process, the drainage valve can be configured as a cylindrical drainage valve 01 or a floating paddle type drainage valve 02.
[0071] In the specific implementation process, with reference to Figure 15 , the cover 210 of the cylindrical drainage valve 01 can be provided with the second flow guide structure 220; of course, with reference to Figure 18 , the cover 210 of the floating paddle type drainage valve 02 can also be provided with the second flow guide structure 220.
[0072] With reference to Figures 12 to 15In the cylindrical drain valve 01, the switch mechanism 200 comprises an outer cylinder 230, an operating part 240 and a transmission assembly 250. The outer cylinder 230 is located at one side of the main body 110 and fixedly connected with the main body 110. A water inlet 122 is arranged between the outer cylinder 230 and the main body 110 and communicates with the drain hole 111. The cover 210 is slidably installed in one end of the outer cylinder 230 close to the main body 110. The operating part 240 is installed at one end of the outer cylinder 230 away from the main body 110. The transmission assembly 250 is installed in the outer cylinder 230. The operating part 240 is in transmission connection with the transmission assembly 250. The transmission assembly 250 is in transmission connection with the cover 210. When the operating part 240 moves, the operating part 240 drives the cover 210 to slide close to or away from the drain hole 111 to close or open the drain hole 111. When the cover 210 is away from the drain hole 111 to open the drain hole 111, the water inlet 122 communicates with the drain hole 111. Thus, the water outside the drain valve can first pass through the water inlet 122 and then enter the drain hole 111.
[0073] In the cylindrical drain valve 01, the operating part 240 can be configured in the form of a key or a knob. Specifically, when the operating part 240 is configured in the form of a key, the operating part 240 is slidably installed in the outer cylinder 230. At this time, the operating part 240 can be provided with one, two or more. When the operating part 240 is configured in the form of a knob, the operating part 240 is rotatably installed in the outer cylinder 230.
[0074] Referring to Figure 7 , Figure 12 and Figure 15 In the cylindrical drain valve 01, the main body 110 and the outer cylinder 230 are provided with a connecting part 120. One of the main body 110 and the outer cylinder 230 is integrally connected with the connecting part 120, and the other is detachably connected with the connecting part 120. The water inlet 122 is arranged on the outer periphery of the connecting part 120. The connecting part 120 is provided with a relief hole 121 along the axis of the drain hole 111. The water inlet 122 communicates with the relief hole 121. The relief hole 121 is arranged opposite to the drain hole 111 and communicates with the drain hole 111. The cover 210 is located in the relief hole 121.
[0075] Referring to Figure 7 , Figure 12 , Figure 14In the cylindrical drain valve 01, when the main body 110 is integrally connected with the connecting part 120, one end of the outer cylinder 230 is rotatably inserted and connected with the connecting part 120, one of the connecting part 120 and the outer cylinder 230 is provided with a plurality of clamping grooves 123, and the other is provided with a clamping part 231, the plurality of clamping grooves 123 are circumferentially distributed around the axis of the drain hole 111, the connecting part 120 has elasticity, and the clamping part 231 can be clamped in any one of the clamping grooves 123. Thus, the outer cylinder 230 can be rotated to adjust the installation angle of the entire switch mechanism 200 relative to the flow-increasing drain head. During the rotation of the outer cylinder 230, due to the elasticity of the connecting part 120, the clamping part 231 can be moved from one clamping groove 123 to another clamping groove 123, and a sound is emitted during the movement of the clamping part 231 to prompt the rotation of the outer cylinder 230.
[0076] Referring to Figures 16 to 18 In the floating paddle drain valve 02, the switch mechanism 200 includes a rotating arm 260, the cover 210 is connected to one end of the rotating arm 260, and the other end of the rotating arm 260 is rotatably connected to the main body 110. Among them, the density of the cover 210 is less than water, or the cover 210 is provided with a buoyancy part 211 with a density less than water. Therefore, when the floating paddle drain valve 02 is applied to the sanitary ware and the cover 210 or the buoyancy part 211 is soaked in water, the cover 210 or the buoyancy part 211 generates buoyancy, and then drives the cover 210 to rotate away from the drain hole 111 through the buoyancy to open the drain hole 111, thereby draining the water around the cover 210. During the drainage process, the cover 210 will rotate to approach the drain hole 111 under the action of gravity, thereby the cover 210 reseals the drain hole 111 after the water around the cover 210 is drained.
[0077] It should be noted that the above drain valve, its opening and closing structure can also be set in other ways, for example, the opening and closing structure further comprises a shell, a pressing piece and a magnet, the shell is connected with the main body 110, the shell and the main body 110 are provided with an escape hole 121 communicated with the drain hole 111, the cover 210 is installed in the shell and can slide along the axis of the drain hole 111, the pressing piece is installed in the shell and can slide along the axis of the drain hole 111, the magnet is slidably installed in the shell and connected with the pressing piece, the cover 210 has magnetism or the cover 210 is provided with a magnetic part to generate an attractive force between the cover 210 and the magnet, the pressing piece and the shell are provided with a reset piece, then when the user presses down the pressing piece, the pressing piece slides towards the main body 110, at this time the magnet is close to the cover 210, so that the attractive force between the magnet and the cover 210 increases and further makes the cover 210 slide away from the drain hole 111, thereby opening the drain hole 111, after the user releases the pressing piece, the pressing piece is reset under the action of the reset piece, so that the magnet is away from the cover 210, and then the attractive force between the magnet and the cover 210 decreases, thereby the cover 210 slides close to the drain hole 111 under the action of its own gravity to close the drain hole 111 again, of course, the cover 210 can also slide close to the drain hole 111 under the action of a spring or other reset structure to close the drain hole 111 again.
[0078] The technical features of the above-described embodiments can be combined in any manner. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described, but as long as the combinations of the technical features do not contradict, they should be considered within the scope of the present disclosure.
[0079] The embodiments of the present application are described in detail above with reference to the drawings, but the present application is not limited to the above-described embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the spirit of the present application.
Claims
1. A flow increasing drain head, characterized in that, Comprising: a main body (110) provided with a drain hole (111) in which a first flow guide structure (112) is arranged, the first flow guide structure (112) comprising a plurality of flow guide grooves (1121) spaced around an axis of the drain hole (111), the flow guide grooves (1121) being configured to drive water passing through the flow guide grooves (1121) to produce a rotational downward movement to increase water flow speed.
2. The flow-increasing drain head of claim 1, wherein, The flow guide grooves (1121) are arranged in a spiral.
3. The flow-increasing drain head of claim 2, wherein, The flow guide grooves (1121) are recessed on an inner wall of the drain hole (111), and a groove wall between two adjacent flow guide grooves (1121) forms a flow guide portion (1122); or, The first flow guide structure (112) comprises a plurality of flow guide ribs (1123) arranged in a spiral, the flow guide ribs (1123) being arranged on an inner wall of the drain hole (111), and the flow guide grooves (1121) being formed by the corresponding two adjacent flow guide ribs (1123) and the inner wall of the drain hole (111).
4. The flow-increasing drain head of claim 2, wherein, The distance between the bottom wall of the flow guide groove (1121) and the axis of the drain hole (111) gradually decreases along the drainage direction of the drain hole (111).
5. The flow-increasing drain head of claim 2, wherein, The rotation direction of the flow guide groove (1121) is counterclockwise or clockwise.
6. The flow-increasing drain head of claim 1, wherein, The outer diameter of one end of the main body (110) is 2 inches or 3 inches.
7. The flow-increasing drain head according to any one of claims 1 to 6, characterized in that One end of the main body (110) is provided with a pipe connection structure (113).
8. The flow-increasing drain head according to claim 7, characterized in that: The pipe connection structure (113) comprises a threaded stud (1131) and a bottom hook (1132), the threaded stud (1131) is connected with the main body (110), the bottom hook (1132) is screwed on the threaded stud (1131), and the bottom hook (1132) is arranged opposite to the drain hole (111); and / or, The pipe connection structure (113) comprises a connection thread (1133) arranged on the main body (110).
9. The flow-enhancing drain head of claim 1, wherein, It can be applied to a cylindrical drain valve (01) or a float-type drain valve (02).
10. A drain valve characterized by, Comprising the flow-increasing drain head according to any one of claims 1 to 9.