A drainage valve for increasing drainage speed

Abstract

The present invention discloses a drain valve for improving drainage speed, comprising a base assembly and a sealing assembly, wherein the base assembly is provided with a drain port, the sealing assembly is movably arranged relative to the base assembly, and the sealing assembly switches between an open state and a closed state; in the closed state, the sealing assembly is in sealing cooperation with the drain port; in the open state, the sealing assembly opens the drain port and avoids a position directly above the drain port, so that the drain valve can drain water directly from top to bottom, thereby greatly improving the drainage speed of the drain valve.

Description

Technical Field

[0001] The invention relates to a drainage valve capable of improving drainage speed. Background Art

[0002] The existing bucket-type drain valve for toilet water tanks basically uses a vertical lifting connecting pipe 1 for drainage. Due to the obstruction of the valve body 2 and the sealing surface 3 of the connecting pipe 1, the water in the water tank cannot be drained directly from the top to the bottom, and can only be drained from the side opening 4 of the circumference, which greatly affects the drainage speed (see Figure 1 );

[0003] The existing flap drain valve uses the flap to drain water, but because the flap body 5 and the air chamber 6 are blocked directly above the drain port 7, the water in the water tank cannot be drained directly from top to bottom, which greatly affects the drainage speed of the drain valve (see Figure 2 ). Summary of the invention

[0004] In order to solve the above problems, the present invention provides a drain valve with improved drainage speed. When the sealing component opens the drain outlet, it avoids the position directly above the drain outlet, so that the drain valve can drain water directly from top to bottom, thereby greatly improving the drainage speed of the drain valve.

[0005] To achieve the above object, the technical solution adopted by the present invention is:

[0006] A drain valve for improving drainage speed comprises a base assembly and a sealing assembly, wherein the base assembly is provided with a drain port, the sealing assembly is movably arranged relative to the base assembly, and the sealing assembly switches between an open state and a closed state; in the closed state, the sealing assembly is in sealing cooperation with the drain port; in the open state, the sealing assembly opens the drain port and avoids a position directly above the drain port.

[0007] Preferably, the sealing assembly is movably mounted on the base assembly, and the base assembly is provided with a sliding guide rail. When the sealing assembly slides along the sliding guide rail to a first position, the sealing assembly is in an open state, and when the sealing assembly slides along the sliding guide rail to a second position, the sealing assembly is in a closed state.

[0008] Preferably, the sliding guide rail is arranged in the up-down direction, and the sealing assembly is provided with a sliding limit portion sliding along the sliding guide rail, and when the sealing assembly is opened, the sliding limit portion of the sealing assembly slides to the upper end of the sliding guide rail.

[0009] Furthermore, the sealing assembly is slidably and rotatably mounted on the base assembly, the sliding guide rail includes a slide groove and a rotating shaft hole arranged at the upper end of the slide groove, the sliding limit portion is a slider matching the slide groove, and when the slider slides to the upper end of the slide groove, it disengages from the slide groove and rotates in cooperation with the rotating shaft hole.

[0010] Furthermore, the slider is a strip slider, and the strip slider slides in the slide groove along the length direction of the slider, and the sliding guide rail and / or the sliding limit portion are provided with a guiding structure for guiding the strip slider to return to the slide groove.

[0011] Preferably, the base assembly is provided with a rotation limiting portion; the sealing assembly is provided with a matching portion, and the rotation limiting portion and the matching portion are limitedly matched to limit the rotation angle of the sealing assembly.

[0012] Preferably, the base assembly is provided with two columns extending in the longitudinal direction, the sliding guide rail is arranged on the columns in the longitudinal direction, the sliding limit portion is arranged on the upper part of the sealing assembly and cooperates with the sliding guide rail; the sealing assembly is provided with two support columns extending in the longitudinal direction, and the sliding limit portion is arranged on the support columns.

[0013] Preferably, the sliding guide rail is straight, folded or arc-shaped.

[0014] Preferably, it also includes a soft lock for driving the sealing assembly to move, and the sealing assembly is provided with a soft lock connecting portion for attaching the soft lock; the soft lock connecting portion is located on a side deviating from the center of gravity of the sealing assembly; the sealing assembly flips toward one side of the soft lock connecting portion under the pull of the soft lock.

[0015] Preferably, the sealing assembly is a flap assembly, which includes an air chamber and a sealing disk; after the sealing assembly is flipped over, it remains in the open state for a preset time under the buoyancy of the air chamber, and when the buoyancy of the air chamber is insufficient, the sealing assembly resets to the closed state under the action of its own gravity.

[0016] The beneficial effects of the present invention are:

[0017] (1) When the sealing assembly opens the drain port, the present invention switches the sealing assembly to a position away from the upper part of the drain port, so that the drain valve can drain water directly from top to bottom, thereby greatly improving the drainage speed of the drain valve;

[0018] (2) In the process of opening the sealing assembly, the sealing assembly is pulled to slide along the sliding guide rail. After the sealing assembly slides to the end of the sliding guide rail, it flips under the action of the pulling force and the buoyancy of the air chamber provided in the sealing assembly, so that the sealing assembly leaves the position directly above the drain port. The water in the water tank can be directly drained from top to bottom, with a compact structure and reliable operation process.

[0019] (3) The present invention is also provided with a sliding limiter for guiding and limiting the sliding process of the sealing component, and a rotation limiter for limiting the rotation angle of the flipping movement of the sealing component, so that the sliding of the sealing component is smoother and the flipping position is more reliable, thereby avoiding interference with the drainage process and reducing the drainage efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the drawings:

[0021] Figure 1 It is a cross-sectional structural schematic diagram of a bucket-type drain valve in the prior art;

[0022] Figure 2 It is a cross-sectional structural schematic diagram of a flap drain valve in the prior art;

[0023] Figure 3 It is a schematic diagram of the three-dimensional exploded structure of a drainage valve for improving drainage speed according to the present invention;

[0024] Figure 4 This is one of the partial cross-sectional views of a closed state of a drain valve for improving drain speed according to the present invention (the sealing assembly is in sealing cooperation with the drain port);

[0025] Figure 5 This is the second partial cross-sectional view of the closed state of a drain valve for improving drain speed of the present invention (the sealing component cooperates with the drain port in sealing);

[0026] Figure 6 A side view of a drain valve for improving drain speed according to the present invention during the process of opening and draining (the sealing assembly slides and rotates in a direction away from the drain outlet);

[0027] Figure 7 A partial cross-sectional view of a drainage valve for improving drainage speed according to the present invention during the opening and drainage process (the sealing component slides and rotates in a direction away from the drainage port);

[0028] Figure 8 One of the partial cross-sectional views of the open state of a drain valve for improving drain speed of the present invention (the sealing assembly is rotated to a direction perpendicular to the drain outlet and avoids a position directly above the drain outlet);

[0029] Fig. 9 A three-dimensional schematic diagram of a drain valve for improving drainage speed according to the present invention in an open state (the sealing component is rotated to a direction perpendicular to the drain outlet and avoids a position directly above the drain outlet);

[0030] Fig.10 A side view of the water stopping process of a drain valve for improving drain speed according to the present invention (the sealing assembly rotates to a position just above the drain outlet and slides toward the direction close to the drain outlet);

[0031] Fig.11 A three-dimensional schematic diagram of the water stopping process of a drain valve for improving drainage speed according to the present invention (the sealing component rotates to a position just above the drain outlet and slides toward the direction close to the drain outlet);

[0032] In the figure:

[0033] 10-base assembly; 11-drain outlet;

[0034] 20-sealing assembly (flap cover); 21-air chamber; 22-sealing disc;

[0035] 30-sliding guide rail; 31-rotation limiter (limiter block); 32-rotation shaft hole;

[0036] 40-support column; 41-matching portion (convex disc);

[0037] 50-sliding limiting part (sliding limiting column);

[0038] 60-flexible locking connection portion; 61-connection hole;

[0039] 70-connecting shaft;

[0040] 80-Soft lock. DETAILED DESCRIPTION

[0041] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention clearer and more understandable, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0042] A drain valve for improving drainage speed of the present invention comprises a base assembly 10 and a sealing assembly 20, wherein the base assembly 10 is provided with a drain outlet 11, the sealing assembly 20 is movably arranged relative to the base assembly 10, and the sealing assembly 20 switches between an open state and a closed state; in the closed state, the sealing assembly 20 is in sealing cooperation with the drain outlet 11; in the open state, the sealing assembly 20 opens the drain outlet 11 and avoids the position directly above the drain outlet 11.

[0043] like Figure 3As shown, the sealing assembly 20 is movably mounted on the base assembly 10, and the base assembly 10 is provided with a sliding guide rail 30. When the sealing assembly 20 slides to a first position along the sliding guide rail 30, the sealing assembly 20 is in an open state, and when the sealing assembly 20 slides to a second position along the sliding guide rail 30, the sealing assembly 20 is in a closed state. The sliding guide rail 30 is arranged in the up-down direction, and the sealing assembly 20 is provided with a sliding limiter 50 that slides along the sliding guide rail 30. When the sealing assembly 20 is opened, the sliding limiter 50 of the sealing assembly 20 slides to the upper end of the sliding guide rail 30.

[0044] In this embodiment, the sealing assembly 20 is mounted on the base assembly 10 in a sliding and rotatable manner, the sliding guide rail 30 includes a slide groove and a shaft hole 32 disposed at the upper end of the slide groove, and the sliding limiter 50 is a slider matching the slide groove, and when the slider slides to the upper end of the slide groove, it disengages from the slide groove and rotatably cooperates with the shaft hole 32. Preferably, the slider is a bar slider, and the bar slider slides in the slide groove along the length direction of the slider, and a guiding structure for guiding the bar slider to return to the slide groove is provided on the sliding guide rail 30 and / or the sliding limiter 50. The guiding structure is preferably a guiding inclined surface, which is disposed on the inner side wall of the sliding guide rail 30 at the connection portion between the shaft hole 32 and the slide groove, and / or the guiding inclined surface is disposed on the side wall of the slider.

[0045] In this embodiment, the two sides of the sealing assembly 20 are provided with the sliding limit parts 50, and the sealing assembly 20 slides with the sliding guide rail 30 through the sliding limit parts 50. The sliding guide rail 30 can be a straight line, a folded line, an arc line, etc. In this embodiment, the base assembly 10 is provided with two vertical columns extending in the longitudinal direction, and the sliding guide rail 30 is arranged on the vertical columns in the longitudinal direction. The two vertical columns are connected together by a connecting shaft 70, so that the structure of the sealing assembly 20 is more reliable. The sliding limit part 50 is arranged on the upper part of the sealing assembly 20 and cooperates with the sliding guide rail 30; the sealing assembly 20 is provided with two support columns 40 extending in the longitudinal direction, and the sliding limit part 50 is arranged at the upper end of the support column 40. After the length of the support column 40 is reasonably designed, the sealing assembly 20 can avoid the position directly above the drain outlet 11 after turning 90 degrees.

[0046] In this embodiment, the base assembly 10 is provided with a rotation limiting portion 31, and the sealing assembly 20 is provided with a matching portion 41, and the rotation limiting portion 31 and the matching portion 41 are limitedly matched to limit the rotation angle of the sealing assembly 20. Preferably, in the open state, the sealing assembly 20 is flipped to a position perpendicular to the drain port 11; when the sealing assembly 20 is flipped into place, the sealing assembly 20 is stopped and limited.

[0047] The drain valve also includes a soft lock 80 for driving the sealing assembly 20 to move, and the sealing assembly 20 is provided with a soft lock connecting portion 60 for attaching the soft lock 80; in this embodiment, the soft lock connecting portion 60 is arranged on the sealing assembly 20 and is located on a side deviating from the center of gravity of the sealing assembly 20; the sealing assembly 20 flips toward one side of the soft lock connecting portion 60 under the pull of the soft lock 80.

[0048] The working process of the drain valve of the present invention is briefly described as follows:

[0049] like Figure 4 and Figure 5 As shown, in the initial state, the sealing assembly 20 of the drain valve is in a closed state, and the sealing assembly 20 is located at the lower end of the sliding guide rail 30 and is sealed with the drain port 11 .

[0050] like Figure 6 and Figure 7 As shown, when the soft lock 80 is operated to drive the drain valve to open for drainage, the sealing component 20 slides and rotates in the direction away from the drain port 11 under the pull of the soft lock 80; in the process of opening the sealing component 20, under the pulling force of the soft lock 80, the sealing component 20 slides and rises along the sliding guide rail 30 on the base component 10; when rising to the rotating shaft hole 32 at the end (upper end) of the sliding guide rail 30, the sealing component 20 flips along the rotating shaft hole 32 under the pulling force of the soft lock 80 and its own buoyancy (the buoyancy of the sealing component 20 itself in this embodiment is provided by the air chamber 21 described below), as shown in FIG. Figure 6 and Figure 7 As shown, at this time, the sealing assembly 20 has just flipped over a small angle.

[0051] like Figure 8 and Fig. 9As shown, at this time, the sealing component 20 is flipped 90 degrees along the rotating shaft hole 32 (that is, the sealing component 20 is rotated to a direction perpendicular to the drain outlet 11) under the pulling force of the soft lock 80 and the buoyancy of the air chamber 21, so that the sealing component 20 avoids the position directly above the drain outlet 11, and the drain outlet 11 is fully opened; at this time, the sealing component 20 is limited by the rotation limit part 31 at the upper end of the sliding guide rail 30, so that the sealing component 20 remains in an open drainage state under the action of buoyancy, and the water in the water tank can be directly drained from top to bottom, which greatly improves the drainage speed.

[0052] like Fig.10 and Fig.11 As shown, after the drain outlet 11 is opened for a preset time, the water in the water tank flows out of the drain outlet 11 and the water level in the water tank drops; when the water level drops to the point where the air chamber 21 can no longer provide sufficient buoyancy, the sealing assembly 20 flips over and resets to a position directly above the drain outlet 11 under the action of its own gravity, and the sliding limit portion 50 on the sealing assembly 20 rotates to a direction facing the sliding guide rail 30, so that the sealing assembly 20 slides down along the sliding guide rail 30 toward the drain outlet 11 to stop water, thereby closing the drain outlet 11 to stop water.

[0053] The drain valve is a flap drain valve and / or a bucket drain valve:

[0054] When a flap drain valve is used, the sealing assembly 20 is a flap assembly, which includes an air chamber 21 and a sealing disk 22. After the sealing assembly 20 is flipped over, it remains in the open state for a preset time under the buoyancy of the air chamber 21. When the buoyancy of the air chamber 21 is insufficient, the sealing assembly 20 is reset to the closed state under its own gravity. In addition, the falling of the sealing assembly 2 is sometimes also affected by the suction of water.

[0055] When a barrel-type drain valve is used, the sealing assembly may include a valve core (not shown) disposed in the valve body and a sealing disk (not shown) disposed outside the valve body and coordinated with the valve core. The sealing disk is driven by the valve core to cooperate with the drain port 11 to open and close. When the sealing assembly is in the open state, the sealing disk can also be turned over to avoid the position directly above the drain port 11. The valve core is connected to a single-row float barrel or a double-row float barrel; after the valve core is pulled upward, it remains in the lifted state under the buoyancy of the single-row float barrel or the double-row float barrel, so that the sealing disk remains in the open state for a preset time. When the water level of the water tank drops so that the buoyancy of the single-row float barrel or the double-row float barrel is insufficient, the valve core falls under its own gravity and drives the sealing disk to fall to the closed state.

[0056] It is also possible to use a barrel-type double-row float barrel control assembly between the flap cover assembly and the start assembly of the drain valve on the basis of the flap cover drain valve; when using this solution, the double-row float barrels are mainly used to provide the opening buoyancy of the sealing assembly, and the air chamber of the flap cover assembly can be adjusted to the minimum buoyancy or the air chamber can be directly removed. In this way, the drain valve composed of the flap cover assembly and the barrel-type double-row float barrel control assembly has a double-row function.

[0057] The above description shows and describes the preferred embodiments of the present invention. As mentioned above, it should be understood that the present invention is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the invention concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not depart from the spirit and scope of the present invention, and should be within the scope of protection of the claims attached to the present invention.

Claims

1. A drainage valve for improving drainage speed, comprising a base assembly (10) and a sealing assembly (20), wherein the base assembly (10) is provided with a drainage port (11), the sealing assembly (20) is movably arranged relative to the base assembly (10), and the sealing assembly (20) is switchable between an open state and a closed state; characterized in that: In the closed state, the sealing component (20) is in sealing cooperation with the drain outlet (11); in the open state, the sealing component (20) opens the drain outlet (11) and avoids the position directly above the drain outlet (11); the sealing component (20) is movably mounted on the base component (10), and the base component (10) is provided with a sliding guide rail (30); when the sealing component (20) slides along the sliding guide rail (30) to a first position, the sealing component (20) is in the open state, and the sealing component (20) is in the closed state. When the sealing assembly (20) slides to the second position along the sliding guide rail (30), the sealing assembly (20) is in the closed state; it also includes a soft lock (80) for driving the sealing assembly (20) to move, and the sealing assembly (20) is provided with a soft lock connecting portion (60) for attaching the soft lock (80); the soft lock connecting portion (60) is located on a side deviating from the center of gravity of the sealing assembly (20); the sealing assembly (20) is turned toward one side of the soft lock connecting portion (60) under the pull of the soft lock (80).

2. A drainage valve for improving drainage speed according to claim 1, characterized in that: The sliding guide rail (30) is arranged in the up-down direction, and the sealing assembly (20) is provided with a sliding limit portion (50) that slides along the sliding guide rail (30). When the sealing assembly (20) is opened, the sliding limit portion (50) of the sealing assembly (20) slides to the upper end of the sliding guide rail (30).

3. A drainage valve for improving drainage speed according to claim 2, characterized in that: The sealing assembly (20) is slidably and rotatably mounted on the base assembly (10); the sliding guide rail (30) comprises a slide groove and a rotation axis hole (32) arranged at the upper end of the slide groove; the sliding limit portion (50) is a slider matching the slide groove; when the slider slides to the upper end of the slide groove, it disengages from the slide groove and rotationally cooperates with the rotation axis hole (32).

4. A drainage valve for improving drainage speed according to claim 3, characterized in that: The slider is a strip-shaped slider, which slides in the slide groove along the length direction of the slider, and the sliding guide rail (30) and / or the sliding limit portion (50) are provided with a guiding structure for guiding the strip-shaped slider to return to the slide groove.

5. A drainage valve for improving drainage speed according to claim 3, characterized in that: The base assembly (10) is provided with a rotation limiting portion (31); the sealing assembly (20) is provided with a matching portion (41), and the rotation limiting portion (31) and the matching portion (41) are limitedly matched to limit the rotation angle of the sealing assembly (20).

6. A drain valve for improving drainage speed according to claim 2, characterized in that: The base assembly (10) is provided with two vertical columns extending in the longitudinal direction, the sliding guide rail (30) is arranged on the vertical columns in the longitudinal direction, and the sliding limit portion (50) is arranged on the upper part of the sealing assembly (20) and cooperates with the sliding guide rail (30); the sealing assembly (20) is provided with two support columns (40) extending in the longitudinal direction, and the sliding limit portion (50) is arranged on the support columns (40).

7. A drainage valve for improving drainage speed according to claim 2, characterized in that: The sliding guide rail (30) is of a straight line type, a broken line type or an arc line type.

8. A drainage valve for improving drainage speed according to any one of claims 1 to 7, characterized in that: The sealing component (20) is a flapping cover component, comprising an air chamber (21) and a sealing disk (22); after the sealing component (20) is turned over, it is maintained in the open state for a preset time under the buoyancy of the air chamber (21); when the buoyancy of the air chamber (21) is insufficient, the sealing component (20) is reset to the closed state under the action of its own weight.

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