Low-friction labor-saving double-drainage-valve lifting control mechanism

Abstract

The utility model relates to a low-friction labor-saving double-drainage-valve lifting control mechanism which is arranged in a drainage valve body, a half-drainage button and a full-drainage button which are reset by a spring are installed on a button seat of the drainage valve body, and a half-drainage floating barrel and a full-drainage floating barrel which are in linkage fit with the lifting control mechanism to drain water and close water are arranged in the drainage valve body. A half-drainage floating barrel, a full-drainage floating barrel and an inner core pipe are assembled in a drainage valve body to form a half-drainage structure and a full-drainage structure; the lifting control mechanism is provided with a pair of symmetrically-arranged lever assemblies. One end of the lever assembly abuts against the half-drainage button and the full-drainage button, the other end of the lever assembly is connected with the sliding groove of the inner core pipe in a sliding mode through the idler wheel, and when the half-drainage button or the full-drainage button is pressed, the inner core pipe is controlled to be lifted through rotation of the lever assembly and sliding of the idler wheel, so that the water sealing piece connected to the lower portion of the inner core pipe is lifted to drain water. The device has the advantages of low friction, labor saving and prolonged service life of products.

Description

Technical Field

[0001] This utility model relates to a low-friction, labor-saving double drain valve lifting control mechanism. Background Technology

[0002] Chinese patent CN203569658U discloses a dual-drain valve inner core tube starting device, including a button base, a body, a half-drain button, a full-drain button, a half-drain float, a full-drain float, an inner core tube, and levers. The half-drain float, full-drain float, and inner core tube are assembled within the body to form a half-drain structure and a full-drain structure. The button base is mounted on the body, and the half-drain button and full-drain button are assembled on the button base. At least two sets of levers are installed within the body and arranged symmetrically, with one end abutting against the half-drain button and the full-drain button, and the other end connected to the inner core tube via a pull rod. The advantage of this structure is that a pair of pull rods can reduce the pressure required for flushing and decrease friction between components. However, during lifting, the rotation of the lever assembly causes the pull rod to undergo continuous vertical and horizontal displacement changes at the inner core tube connection point, still generating friction. In severe cases, this can lead to jamming. This makes flushing and draining difficult, and the continuous friction also makes the components prone to damage, shortening their service life. Summary of the Invention

[0003] The purpose of this invention is to address the problems existing in the structure of the existing drain valve lever assembly by providing a low-friction, labor-saving dual drain valve lifting control mechanism.

[0004] The purpose of this utility model is achieved as follows: A low-friction, labor-saving dual drain valve lifting control mechanism is installed in the drain valve body. The button seat of the drain valve body is equipped with a half-drain button and a full-drain button that are reset by a spring. The drain valve body is provided with a half-drain float and a full-drain float that work in conjunction with the lifting control mechanism to drain and seal water. The half-drain float, the full-drain float and the inner core tube are assembled in the drain valve body to form a half-drain structure and a full-drain structure. The lifting control mechanism is equipped with a pair of symmetrically arranged lever assemblies. One end of the lever assembly abuts against the half-drain button and the full-drain button, and the other end of the lever assembly is slidably connected to the inner core tube through a roller. When the half-drain button or the full-drain button is pressed, the inner core tube is lifted by the rotation of the lever assembly and the sliding of the roller, so that the sealing plate connected to the lower part of the inner core tube is lifted to drain water.

[0005] In this invention, a pair of cavities are provided in the upper part of the inner core tube. The cavities form a structure for the roller end of the lever assembly to be directly inserted, and the cavities provide the roller's sliding groove and shoulder structure.

[0006] In this invention, one end of the lever assembly abuts against the half-row and full-row buttons, while the other end is slidably connected to the inner core tube via a roller. There is no horizontal left-right displacement change of the pull rod. When the inner core tube is lifted, it will not tilt, will not rub against other components, the pressing force will be reduced, and it will not damage the inner core tube or other components.

[0007] This invention, through the aforementioned simple sliding lifting structure, truly achieves vertical and horizontal balanced lifting of the lifting mechanism, thereby ensuring that the up-and-down movement of the lifting rod is vertical, reducing friction, allowing the swinging parts to swing flexibly, and thus extending the product's service life and reducing the failure rate.

[0008] The following embodiments, in conjunction with the accompanying drawings, further illustrate the present invention. Attached Figure Description

[0009] Figure 1 This is a three-dimensional structural diagram of a partial cross-section before pressing, according to one embodiment of this utility model;

[0010] Figure 2 yes Figure 1 A schematic diagram of the main structure before pressing in the embodiment;

[0011] Figure 3 yes Figure 1 A three-dimensional structural diagram of the push-pull control mechanism in the embodiment, omitting half a row of buttons;

[0012] Figure 4 yes Figure 3 A schematic diagram of the main structure of the press-and-pull control mechanism, omitting half of the buttons;

[0013] Figure 5 yes Figure 1 A three-dimensional structural diagram showing a partial cross-section of the button layout after all buttons have been pressed in the embodiment.

[0014] Figure 6 yes Figure 5 A schematic diagram of the main structure after all the buttons are pressed;

[0015] Figure 7 yes Figure 5 A three-dimensional structural diagram of the pull-up control mechanism after pressing all the buttons, omitting half of the buttons;

[0016] Figure 8 yes Figure 5 A schematic diagram of the main structure of the pull-up control mechanism after pressing all the buttons, omitting half of the buttons;

[0017] Figure 9 yes Figure 5 A three-dimensional structural diagram of the pull-up control mechanism after all buttons are pressed.

[0018] In the diagram, 1. Drain valve body; 2. Button seat; 3. Half-drain button; 4. Full-drain button; 5. Half-drain float; 6. Full-drain float; 7. Inner core tube; 8. Lever assembly; 9. Roller; 10. Sealing plate; 11. Cavity; 12. Full-drain protrusion; 13. Full-drain bracket; 14. Half-drain protrusion; 15. Half-drain bracket. Detailed Implementation

[0019] Reference Figures 1 to 9 This embodiment is a low-friction, labor-saving dual drain valve lifting control mechanism, which is installed in the drain valve body 1. The button seat 2 of the drain valve body is equipped with a half-drain button 3 and a full-drain button 4 that are spring-reset. The drain valve body is provided with a half-drain float 5 and a full-drain float 6 that work in conjunction with the lifting control mechanism to drain and close the water. The half-drain float, the full-drain float and the inner core tube 7 are assembled in the drain valve body to form a half-drain structure and a full-drain structure. The lifting control mechanism is equipped with a pair of symmetrically arranged levers. Component 8; One end of the lever assembly abuts against the half-row button and the full-row button. A pair of cavities 11 are provided in the upper part of the inner core tube. The cavities form a structure for the roller end of the lever assembly to be directly inserted, and the cavities provide the roller's groove and shoulder structure. The other end of the lever assembly is slidably connected to the inner core tube's groove through the roller 9. When the half-row button or the full-row button is pressed, the inner core tube is lifted by the rotation of the lever assembly and the sliding of the roller, so that the water sealing plate 10 connected to the lower part of the inner core tube is lifted to drain water.

[0020] Reference Figures 5 to 9 When flushing the entire room, press the flush button 4. The lever assembly 8 will lift the inner core tube 7 upward until the flush protrusion 12 abuts against the flush support 13 which is linked to the flush float 6. At this time, the inner core tube is limited and the water sealing plate 10 is lifted to achieve flushing. When the water level drops to the flush float, the flush float will deflect under the action of gravity, that is, the flush support will open outward. The inner core tube will lose its abutment and fall back to its original position. The water sealing plate will fall back to the drain outlet, completing the flushing process.

[0021] The schematic diagram of the half-flush is omitted. When the half-flush is performed, the half-flush button is pressed, which drives the inner core tube to rise through the lever assembly until the half-flush protrusion 14 abuts against the half-flush bracket 15 which is linked to the half-flush float. At this time, the inner core tube is limited and the water sealing plate is lifted to realize flushing and drainage. When the water level drops to the half-flush float, the half-flush float deflects under the action of gravity, that is, the half-flush bracket opens outward, the inner core tube loses its abutment and falls back to its original position, and the water sealing plate falls back to the drain outlet, completing the half-flush.

Claims

1. A low-friction, labor-saving double drain valve lifting control mechanism, disposed in the drain valve body (1), wherein a half-drain button (3) and a full-drain button (4) are installed on the button seat (2) of the drain valve body and are spring-reset; a half-drain float (5) and a full-drain float (6) are disposed in the drain valve body and are linked to the lifting control mechanism for draining and sealing water; the half-drain float, the full-drain float and the inner core tube (7) are assembled in the drain valve body to form a half-drain structure and a full-drain structure; the lifting control mechanism is equipped with a pair of symmetrically arranged lever assemblies (8); characterized in that: One end of the lever assembly abuts against the half-row button and the full-row button, and the other end of the lever assembly slides through the roller (9) to the groove of the inner core tube. When the half-row button or the full-row button is pressed, the inner core tube is lifted by the rotation of the lever assembly and the sliding of the roller, so that the sealing plate (10) connected to the lower part of the inner core tube is lifted to drain water.

2. The low-friction, labor-saving dual drain valve lifting control mechanism according to claim 1, characterized in that: A pair of cavities (11) are provided at the upper part of the inner core tube. The cavities form a structure for the roller end of the lever assembly to be directly inserted, and the cavities provide the roller's groove and shoulder structure.

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