A wired control device for a sink drain

Abstract

This invention discloses a wired control device for a sink drain. The device includes a wired control assembly connected to the sink drain, a tabletop control handle assembly, and a handle locking assembly. The tabletop control handle assembly includes a handle base and a handle, which are hinged together by a pivot. The handle locking assembly secures the handle base to the sink countertop. The wired control assembly is linked to the handle; the rotation of the handle drives the wired control assembly, thus controlling the opening and closing of the sink drain. This invention incorporates a gear adjustment mechanism between the handle and the handle base. Multi-level gear switching is achieved through the interaction of a ball bearing assembly and a ball bearing recess, precisely controlling the opening and closing degree of the drain. Simultaneously, the interaction of a positioning protrusion and a locking groove limits the maximum rotation angle of the handle, preventing damage to the hinge structure and the wired control assembly due to stress. This device is simple in structure, easy to operate, and has high control precision, effectively solving the problems of poor on / off control accuracy and complex, easily damaged structures in existing tabletop control drains.

Description

Technical Field

[0001] This invention relates to the field of drainer technology, and more specifically to a wired control device for a sink drainer. Background Technology

[0002] Currently, kitchen sinks all have a drain outlet at the bottom, with a drain assembly installed on top. This assembly connects to a drain pipe, allowing water from the sink to drain into the sewer. Typically, to prevent large particles from entering the drain pipe and causing blockages, drain assemblies are equipped with filters, sealing caps, and other accessories. However, many existing drain assemblies are installed at the bottom of the water storage tank. To operate them, one needs to reach underwater, which is inconvenient in deep water and can easily get one's arms wet, making the drain assemblies inconvenient to use. To address this, those skilled in the art have developed table-controlled drain controllers. For example, Chinese Patent Publication No. CN218881071U discloses a table-controlled drain switch, comprising a table-controlled handle cover, a drive shaft, a positioner, a first fastening nut, and a second fastening nut. A threaded sleeve is provided on the upper side of the table-controlled handle cover, and a drive shaft is installed inside the cover. The bottom of the drive shaft is threaded, and a protruding positioner is installed on the upper side of the drive shaft. The first fastening nut is installed on the table-controlled handle cover via the threaded sleeve, and a second fastening nut is installed on the threaded sleeve. This table-controlled drain switch, with its table-controlled handle, allows for remote control of the drain via simply rotating the cover, improving ease of use. However, such devices have the following drawbacks: 1. Insufficient control precision: The rotary switch lacks clear gear feedback, making it impossible for users to intuitively perceive the opening and closing degree of the drain, thus hindering precise control of drainage flow; 2. Complex structure and high cost: It requires a positioner, multiple sets of fastening nuts, and a transmission structure, resulting in a large number of parts, complex assembly processes, and high production costs; 3. Prone to overload damage: Without a clear travel limit structure, excessive rotation of the handle by the user can easily cause the transmission shaft or wired control components to break, reducing the device's lifespan. Therefore, developing a wired control device for a sink drain that is simple in structure, easy to operate, enables precise gear-based control, and has travel limit protection has become a technical problem urgently needing to be solved by those skilled in the art. Summary of the Invention

[0003] The purpose of this invention is to provide a wired control device for a sink drain to address the shortcomings of existing technologies. This device solves the problems of poor control accuracy, complex structure, and easy damage of existing table-controlled drains, and achieves stable, reliable, convenient, and low-cost remote control of the drain.

[0004] The present invention achieves the above-mentioned objectives using the following technical solution: a wired control device for a sink drain, characterized in that it includes a wired control assembly connected to the sink drain, a tabletop control handle assembly, and a handle locking assembly. The tabletop control handle assembly includes a handle base and a handle, with the handle and handle base connected by a rotating shaft. The handle locking assembly is correspondingly connected to the handle base for locking the handle base onto the sink countertop. The wired control assembly is connected to the handle, and the handle controls the opening and closing of the sink drain via the wired control assembly.

[0005] A gear adjustment mechanism is connected between the handle and the handle seat. The gear adjustment mechanism includes a ball bearing assembly and one or more ball bearing recesses corresponding to the ball bearing assembly. During the process of lifting or pressing down the handle, the ball bearing assembly can switch between different ball bearing recesses to realize the conversion of multiple gear levels, thereby accurately controlling the opening and closing degree of the sink drain.

[0006] As a further explanation of the above solution, the handle locking assembly includes an external threaded tube, a locking sleeve, and a washer. The washer and the locking sleeve are respectively fitted onto the external threaded tube from top to bottom. The locking sleeve is threadedly connected to the external threaded tube. The wired control assembly passes through the external threaded tube and is connected to the sink drain.

[0007] Furthermore, the handle seat is provided with an internal thread fixing sleeve corresponding to the external thread tube. One end of the external thread tube is threadedly connected to the internal thread fixing sleeve. The internal thread fixing sleeve and the external thread tube are offset from the central axis of the handle seat, so that the handle can meet the stroke requirements of the wire control component with a small swing angle, reducing the operating range.

[0008] Furthermore, the handle base is symmetrically provided with mounting holes for accommodating the ball assembly on both sides. The ball assembly includes a spring and a ball. The handle includes a handle head and a handle handle. The handle head is provided with a cavity that engages with the handle base. One or more ball recesses are distributed from top to bottom along the inner wall of the cavity, corresponding to the ball assembly one by one.

[0009] Furthermore, a first positioning protrusion is provided on the inner wall of the handle head cavity, and a positioning groove corresponding to the first positioning protrusion is provided on the upper side of the handle seat to limit the maximum angle of handle rotation, so as to prevent the hinge structure between the handle and the handle seat from breaking due to excessive rotation, and at the same time to prevent the connection between the wire control component and the sink drain from being damaged due to excessive pulling.

[0010] Furthermore, the end of the handle seat is provided with a protrusion corresponding to the pivot, and the end of the handle is provided with a left ear and a right ear corresponding to each other; the protrusion is inserted between the left ear and the right ear, and the pivot is sequentially passed through the left ear, the protrusion and the right ear to realize the hinge connection between the handle and the handle seat; a second positioning protrusion is provided above the protrusion, and the second positioning protrusion and the protrusion form a stop cooperation to further limit the flipping angle of the handle and prevent excessive operation.

[0011] Furthermore, the top of the protrusion is provided with a slope, which slopes downward from the side near the handle to facilitate the guidance when the handle is flipped and to avoid jamming.

[0012] Furthermore, the lower part of the handle base is provided with an outwardly extending annular flange, and the bottom of the handle is movably supported on the flange, which improves the stability during the handle rotation process; the bottom of the flange is provided with an annular groove, and a sealing ring is installed in the annular groove to achieve a seal between the handle base and the sink countertop and prevent water leakage.

[0013] The beneficial effects that can be achieved by adopting the above-mentioned technical solution in this invention are:

[0014] 1. This invention adopts a wired control structure for a sink drain, mainly composed of a wired control component, a table control handle component, and a handle locking component. The table control handle component includes a handle base and a handle. The handle and the handle base are connected by a rotating shaft. The wired control component and the handle are linked and cooperate. A gear adjustment mechanism is set between the handle and the handle base. During the process of lifting or pressing down the handle, the ball component in the gear adjustment mechanism can switch between different ball recesses to realize the conversion of different gears. This allows for more precise control of the lifting and opening degree of the sink drain, resulting in high control accuracy.

[0015] 2. The present invention provides a first positioning protrusion on the inner wall of the cavity of the handle head and a positioning groove corresponding to the first positioning protrusion on the upper side of the handle seat, which is used to limit the maximum angle of handle rotation, avoid the hinge position of the handle seat and the handle from breaking, and prevent the connection position of the wire control component and the sink drain from being pulled and broken.

[0016] 3. The present invention provides a protrusion at the end of the handle seat and a second positioning protrusion on the handle above the protrusion. The protrusion and the second positioning protrusion cooperate to limit the angle of handle rotation, prevent the hinge position of the handle seat and the handle from breaking, and prevent the connection position between the wire control component and the sink drain from being pulled and broken.

[0017] 4. The present invention provides an internal thread fixing sleeve corresponding to the external thread tube inside the handle seat. One end of the external thread tube is threadedly connected to the internal thread fixing sleeve. The internal thread fixing sleeve is offset from the center of the handle seat, so that the swing angle of the handle does not need to be too large to meet the stroke requirements of the wire control component. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the present invention.

[0019] Figure 2 This is a schematic diagram of the handle base structure of the present invention.

[0020] Figure 3 This is a schematic diagram of the handle structure of the present invention.

[0021] Figure 4 This is a schematic diagram of the mounting structure of the handle base and the wired control assembly of the present invention.

[0022] Figure 5 This is a schematic diagram of the handle base structure of the present invention.

[0023] Figure 6 This is a schematic diagram of the external threaded pipe installation structure of the present invention.

[0024] Explanation of reference numerals in the attached drawings: 1. Wired control assembly; 2. Table control handle assembly; 2-1. Handle seat; 2-11. Mounting hole; 2-12. Positioning slot; 2-121. Raised edge; 2-13. Protrusion; 2-14. Internal threaded fixing sleeve; 2-15. Annular flange; 2-151. Annular groove; 2-2. Handle; 2-21. Handle head; 2-211. First positioning protrusion; 2-22. Handle; 2-23. Left ear; 2-24. Right ear; 2-25. Second positioning protrusion; 2-3. Rotating shaft; 3. Handle locking assembly; 3-1. External threaded tube; 3-2. Locking sleeve; 3-3. Washer; 4. Ball bearing assembly; 5. Ball bearing recess; 6. Sealing ring. Detailed Implementation

[0025] In the description of this invention, it should be noted that the directional terms such as "center", "lateral", "longitudinal", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", and "counterclockwise" indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention 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. They should not be construed as limiting the specific protection scope of this invention.

[0026] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features. Thus, the use of "first" and "second" to define a feature may explicitly or implicitly include one or more of that feature, and in the description of this invention, "at least" means one or more, unless otherwise explicitly specified.

[0027] In this invention, unless otherwise explicitly specified and limited, the terms "assembly," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can also refer to a mechanical connection; they can refer to a direct connection or a connection through an intermediate medium; or they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0028] In this invention, unless otherwise specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "below," and "over" the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Above," "below," and "below" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0029] The specific embodiments of the present invention will be further described below with reference to the accompanying drawings, making the technical solution and beneficial effects of the present invention clearer and more explicit. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, but should not be construed as limiting the present invention.

[0030] like Figures 1-6 As shown, this invention is a wired control device for a sink drain, including a wired control assembly 1, a tabletop control handle assembly 2, and a handle locking assembly 3 connected to the sink drain. The tabletop control handle assembly 2 includes a handle seat 2-1 and a handle 2-2, which are hinged to the handle seat 2-1 via a pivot 2-3. The handle locking assembly 3 includes an external threaded tube 3-1, a locking sleeve 3-2, and a washer 3-3. The washer is a soft washer used to lock the handle seat onto the sink countertop. The wired control assembly 1 is linked to the handle 2-2, and the flipping action of the handle drives the wired control assembly to control the opening and closing of the sink drain. A gear adjustment mechanism is connected between the handle and the handle seat. The gear adjustment mechanism includes a ball bearing assembly 4 and one or more ball bearing recesses 5 corresponding to the ball bearing assembly. During the process of lifting or pressing down the handle, the ball bearing assembly can switch between different ball bearing recesses to achieve multi-level gear switching, thereby precisely controlling the opening and closing degree of the sink drain. In this embodiment, the handle base 2-1 has symmetrical mounting holes 2-11 on both sides for accommodating the ball bearing assembly 4. The ball bearing assembly 4 includes a spring and a ball bearing. The handle 2-2 includes a handle head 2-21 and a handle 2-22. The handle head 2-21 has a cavity that engages with the handle base 2-1. Three ball bearing recesses 5 are distributed from top to bottom on the inner wall of the cavity, adapting to the ball bearing assembly to form a three-level adjustment. When the user lifts or presses down the handle, the ball bearings of the ball bearing assembly sequentially engage with different ball bearing recesses under the action of the spring, achieving the switching between the three positions of the drain: closed, half-open, and fully open. The user can intuitively perceive the opening and closing status of the drain by the rotation position of the handle, achieving precise control.

[0031] The following are the corresponding drainer lifting heights for different handle angles relative to the horizontal plane:

[0032]

[0033] The inner wall of the handle head cavity is provided with a first positioning protrusion 2-211, and the upper side of the handle seat 2-1 is provided with a positioning groove 2-12 adapted to the first positioning protrusion 2-211; the upper edge of the positioning groove 2-12 is provided with a protruding edge 2-121, and the bottom surface of the protruding edge 1-121 is a slope. The end of the handle seat 2-1 is provided with a protrusion 2-13 corresponding to the rotating shaft, and the end of the handle is provided with a left ear piece 2-23 and a right ear piece 2-24 corresponding to each other. The protrusion is inserted between the left ear piece and the right ear piece, and the rotating shaft passes through the left ear piece, the protrusion, and the right ear piece in sequence; a second positioning protrusion 2-25 is provided above the protrusion 2-13, and the second positioning protrusion 2-25 and the protrusion 2-13 form a stop engagement. When the handle is rotated to the maximum angle, the first positioning protrusion is engaged with the positioning groove, and at the same time the second positioning protrusion abuts against the protrusion, thus doubly restricting the rotation angle of the handle and avoiding structural damage caused by excessive operation.

[0034] The handle base 2-1 is internally provided with an internally threaded fixing sleeve 2-14 adapted to the externally threaded tube. The upper end of the externally threaded tube 3-1 is threadedly connected to the internally threaded fixing sleeve 2-14. The internally threaded fixing sleeve 2-14 and the externally threaded tube 3-1 are offset from the central axis of the handle base, so that the handle can meet the stroke requirements of the wired control component with a small swing angle, reducing the operating range. In addition, in order to maximize the volume of the sink, the installation space left for the wired control device of the faucet and drain in common sinks is very limited, which can significantly reduce the size of the entire countertop control handle assembly, making it compatible with the installation requirements of common sinks on the market. The wired control component 1 includes an outer sheath and an inner core steel wire rope that is movable inside. The outer sheath is connected and fixed to the externally threaded tube. The lower part of the handle base 2-1 is provided with an outwardly extending annular flange 2-15, and the bottom of the handle is movably supported on the annular flange 2-15 to improve the stability of the flipping; the bottom of the flange is provided with an annular groove 2-151, and a sealing ring 6 is installed in the annular groove to achieve a seal between the handle base and the sink countertop to prevent water leakage.

[0035] In this embodiment, the wired control device for the sink drain is installed by first threading the external threaded tube through the mounting hole in the sink countertop, then tightening the locking sleeve to the external threaded tube from below the countertop, and securing the handle base with a washer. The wired control component then passes through the internal part of the external threaded tube and connects to the sink drain. During use, the user can drive the wired control component by flipping the handle, achieving multi-stage opening and closing control of the drain via the gear adjustment mechanism. Operation is convenient and control is precise, while the dual limit structure effectively prevents damage to the device and extends its service life.

[0036] The above description is only a preferred embodiment of the present invention. It should be noted that those skilled in the art can make several modifications and improvements without departing from the inventive concept of the present invention, and these all fall within the protection scope of the present invention.

Claims

1. A wired control device for a sink drain, characterized in that, It includes a wired control assembly connected to the sink drain, a countertop handle assembly, and a handle locking assembly. The countertop handle assembly includes a handle base and a handle. The handle is connected to the handle base by a pivot. The handle locking assembly is correspondingly connected to the handle base to lock the handle base onto the sink countertop. The wired control assembly is connected to the handle, and the handle controls the opening and closing of the sink drain via the wired control assembly. A gear adjustment mechanism is connected between the handle and the handle seat. The gear adjustment mechanism includes a ball assembly and one or more ball recesses corresponding to the ball assembly. During the process of lifting or pressing down the handle, the ball assembly switches between different ball recesses.

2. The water tank drain control device according to claim 1, characterized in that, The handle locking assembly includes an external threaded tube, a locking sleeve, and a washer. The washer and the locking sleeve are respectively fitted onto the external threaded tube from top to bottom. The locking sleeve is threadedly connected to the external threaded tube. The wired control assembly passes through the external threaded tube and is connected to the sink drain.

3. The water tank drain control device according to claim 1, characterized in that, The handle seat is provided with an internal thread fixing sleeve corresponding to the external threaded tube. One end of the external threaded tube is threadedly connected to the internal thread fixing sleeve. The internal thread fixing sleeve and the external threaded tube are offset from the central axis of the handle seat.

4. The water tank drainer wire control device according to claim 1, characterized in that, The handle base has symmetrical mounting holes on both sides for accommodating ball bearing assemblies. The ball bearing assembly includes a spring and a ball bearing. The handle includes a handle head and a handle handle. The handle head has a cavity that engages with the handle base. One or more ball bearing recesses are distributed from top to bottom along the inner wall of the cavity, corresponding to the ball bearing assemblies one by one.

5. The water tank drainer wired control device according to claim 1, characterized in that, A first positioning protrusion is provided on the inner wall of the handle head cavity, and a positioning groove corresponding to the first positioning protrusion is provided on the upper side of the handle seat.

6. The wired control device for a sink drain according to claim 1, characterized in that, The end of the handle seat is provided with a protrusion corresponding to the pivot, and the end of the handle is provided with a left ear and a right ear corresponding to each other; the protrusion is inserted between the left ear and the right ear, and the pivot is sequentially passed through the left ear, the protrusion and the right ear to realize the hinge connection between the handle and the handle seat; a second positioning protrusion is provided above the protrusion, and the second positioning protrusion and the protrusion form a stop engagement.

7. A wired control device for a sink drain according to claim 6, characterized in that, The top of the protrusion is provided with a slope, which slopes downward from the side near the handle.

8. The water tank drainer wire control device according to claim 1, characterized in that, The lower part of the handle base is provided with an outwardly extending annular flange, and the bottom of the handle is movably supported on the annular flange.

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