Water inlet valve for toilet

Abstract

A water inlet valve for a toilet bowl comprises a valve, a water outlet of the valve is connected with a water inlet, the valve comprises a valve cover, a valve core, a three-way valve body and a valve core driving part, a first opening can be connected with a water inlet pipe, the three-way opening is connected with the water inlet, a valve body recess is arranged on the valve body, the valve cover is sealed on the opening of the valve body recess, a two-way opening of the valve body is located in a valve core control cavity, the valve core cover is arranged on the two-way opening, a valve core through hole is arranged on the valve core, a first through hole and a second through hole are arranged on the valve cover, the second through hole is connected with the three-way opening, the first through hole is connected with the valve core control cavity, the valve core driving part is connected to the valve cover and can cover and open the first through hole, and the valve core driving part is connected with the valve core. The advantages of the present invention are: it can realize rapid water inflow after the valve is opened, and it can be closed in time after flushing, and the water-saving effect is good.

Description

Technical Field

[0001] The invention relates to the technical field of bathroom equipment manufacturing, in particular to a water inlet valve for a toilet. Background Art

[0002] The applicant originally had a Chinese invention patent application with application number CN200910098488.5 and the name of "Water-saving squat toilet" which disclosed a water-saving squat toilet, including a squat toilet basin, a flushing sink, and a linkage opening and closing device. The linkage opening and closing device is provided with a linkage control switch, which can open the water inlet valve of the water inlet pipe in the flushing sink through a transmission mechanism, and is linked with the opening and closing of the sewage controller. A return mechanism that can return the water inlet valve to a closed state is provided at the flushing sink. The invention designs the sewage outlet to be rear-row, and extends the basin of the sewage outlet backward to protrude, connects the sewage controller at the protrusion, and fixes the sewage controller to the protrusion of the basin body through a clamping bracket to divert the sewage channel, shortening the capacity of the accumulated water required for odor prevention, that is, the sewage valve in the sewage controller is directly arranged at the protruding sewage outlet of the basin body, and only a small amount of water is needed to isolate the odor of the sewage straight down pipe, which not only plays the odor prevention function, but also achieves the purpose of water saving. However, the water inlet valve of the squat toilet is expensive and inconvenient to install and use, so the structure of the squat toilet needs to be further improved. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a water inlet valve for a toilet that can realize rapid water inlet after the valve is opened and can be closed in time after flushing, thereby achieving good water-saving effect.

[0004] The technical solution adopted by the present invention to solve the above technical problems is as follows: the water inlet valve of the toilet comprises a valve, the water outlet of the valve is connected with the water inlet of the flushing pipe of the toilet, and the characteristics are as follows: the valve comprises a valve cover, a valve core, a three-way valve body and a valve core driving part, the one-way opening of the valve body can be connected with the water inlet pipe, the three-way opening of the valve body is connected with the water inlet, a valve body recess is arranged on the valve body, the valve cover is sealed on the opening of the valve body recess, the two-way opening of the valve body is located in the valve core control cavity formed by the valve cover and the valve body recess, the valve core cover is placed on the two-way opening, and a valve core is arranged on the valve core A valve core through hole connects the valve core control cavity and a through opening, the valve cover is provided with a first through hole and a second through hole, the second through hole is connected with the three-way opening, the first through hole is connected with the valve core control cavity, the valve core drive part is connected to the valve cover and can cover and open the first through hole, the valve core drive part is connected to the valve core, when the valve core drive part opens the first through hole, the first through hole is connected with the second through hole, the valve core can be pushed open by the water in the water inlet pipe to allow the water to enter the three-way opening, when the valve core drive part covers the first through hole, the valve core covers the two-way opening to close the valve.

[0005] As an improvement, a water passage cavity connecting the second through hole and the first through hole is provided on the valve core driving part, and a cover body capable of covering the first through hole is provided in the water passage cavity. The cover body is connected to a pulling mechanism capable of pulling the cover body to open the first through hole and a resetting mechanism capable of resetting the cover body to cover the first through hole when there is no external force at the pulling mechanism. When the pulling mechanism pulls the cover body to open the first through hole, the first through hole is connected with the second through hole. When there is no external force at the pulling mechanism, the valve cover covers the first through hole, and the valve core covers the two-way opening.

[0006] Further improvement, the valve core is an elastic cover, the valve cover and the bottom surface of the valve body recess clamp the outer edge of the elastic cover, the middle part of the elastic cover covers the two-way opening, the valve core drive part includes a first return spring, the first return spring is placed in the valve core control chamber, one end of the first return spring is connected to the elastic cover, and the other end of the first return spring is connected to the valve cover.

[0007] As a further improvement, the elastic cover is sleeved on the shaping cover, one end of the first return spring contacts the shaping cover, the other end of the first return spring contacts the valve cover, and the valve core through hole passes through the elastic cover and the shaping cover.

[0008] As an improvement, the valve core drive part includes a soft sleeve, the opening cover of the soft sleeve is on the top surface of the valve cover so that the inner cavity of the soft sleeve is formed into a water-passing cavity, the soft sleeve is connected to the cover body, the bottom of the cover body is located in the inner cavity of the soft sleeve, and the top of the cover body extends out of the inner cavity of the soft sleeve and is connected to the pulling mechanism and the reset mechanism.

[0009] As a further improvement, the valve core drive portion includes a positioning ring, and the positioning ring and the top surface of the valve cover clamp the outer edge of the soft sleeve.

[0010] Further improvement, the pulling mechanism includes a sliding rod, a slider, a pulling rod, and a rotating plate, one end of the rotating plate is rotatably connected to the positioning ring, one side of the middle part of the rotating plate is connected to the top of the cover body, and the other side of the middle part of the rotating plate is connected to the reset mechanism, the sliding rod is arranged on the top surface of the valve cover corresponding to the other end of the rotating plate, the slider can be slidably connected to the sliding rod along the sliding rod, the pulling rod and the slider are linked, a second reset spring is arranged on the sliding rod, one end of the second reset spring contacts the valve cover, and the other end of the second reset spring contacts the slider, when the pulling rod pulls the slider to move downward relative to the sliding rod, the slider lifts the rotating plate, and the rotating plate pulls the cover body to separate from the first through hole, when there is no external force on the pulling rod, the slider is reset by the second reset spring, the rotating plate is reset by the reset mechanism, and the cover body covers the first through hole.

[0011] Further improvement, an outer cover body is placed on the top cover of the valve cover, the valve core driving part is located in the outer cavity formed by the outer cover body and the top surface of the valve cover, a positioning column is arranged on the positioning ring, and a plate through hole that can pass the positioning column is arranged in the middle of the rotating plate, the reset mechanism is a third reset spring, the third reset spring is sleeved on the positioning column, one end of the third reset spring is in contact with the inner wall of the outer cover body, and the other end of the third reset spring is in contact with the rotating plate.

[0012] According to a further improvement, the sliding block is a spherical body.

[0013] As a further improvement, the bottom surface of the rotating plate close to the slider has an inclined surface that can slide relative to the slider and avoid being stuck with the slider.

[0014] Compared with the prior art, the advantages of the present invention are: through the structural design of the valve cover and the valve core driving part, the valve core opens the two-way opening during flushing and automatically closes the two-way opening after the flushing is completed. The flushing opening speed is fast and the valve core is closed in time after the flushing is completed, which effectively reduces the waste of water resources; the water pressure at the valve core is changed by opening and closing the cover body, and the valve core does not directly contact the mechanical structure that drives the valve core to open, but the opening of the two-way opening is achieved through the change of water pressure. There is no need to consider the rust resistance of the pulling mechanism in the valve core driving part, which extends the service life of the valve core. In this way, the structural sealing is also better, avoiding the occurrence of valve leakage; the bottom surface of the rotating plate in the pulling mechanism is provided with an inclined surface, which can slide relative to the slider to avoid being stuck with the slider, thereby ensuring the normal operation of the valve. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is an application effect diagram of an embodiment of the present invention;

[0016] Figure 2 for Figure 1 The structural breakdown diagram of

[0017] Figure 3 yes Figure 2 A three-dimensional image after the squat toilet is removed;

[0018] Figure 4 yes Figure 3 A top view of

[0019] Figure 5 yes Figure 4 Sectional view along line AA;

[0020] Figure 6 is a top view of an embodiment of the present invention;

[0021] Figure 7 yes Figure 6 The cross section along line BB;

[0022] Figure 8 yes Figure 6 The structural breakdown diagram of

[0023] Fig. 9 yes Figure 8 A top view after removing the outer shell;

[0024] Fig.10 yes Fig. 9 The cross-section along the CC line;

[0025] Fig.11 yes Figure 8 A three-dimensional image after the outer shell is removed and the pull rod is pulled;

[0026] Fig.12 yes Fig.11 A top view of

[0027] Fig.13 yes Fig.12 The cross section along line DD in the middle;

[0028] Fig.14 yes Figure 6 The structural breakdown diagram of

[0029] Fig.15 yes Fig.14 Further structural decomposition diagram of ;

[0030] Fig.16 yes Fig.15 Exploded view of the structure from another angle. DETAILED DESCRIPTION

[0031] The present invention is further described in detail below with reference to the accompanying drawings.

[0032] like Figures 1 to 16As shown, the water inlet valve of the toilet of this embodiment includes a valve, the water outlet of the valve is connected with the water inlet 41 of the flushing pipe of the toilet (the so-called toilet refers to: a squat toilet 4 or a sitting toilet, the same as above and below), the valve includes a valve cover 3, a valve core, a three-way valve body 1 and a valve core driving part, the one-way opening 11 of the valve body 1 can be connected with the water inlet pipe 6, the three-way opening 13 is connected with the water inlet 41, a valve body recess is provided on the valve body 1, the valve cover 3 is sealed on the opening of the valve body recess, the two-way opening 12 is located in the valve core control cavity 14 formed by the valve cover 3 and the valve body recess, the valve core cover is placed on the two-way opening 12, and a connecting valve core is provided on the valve core. The control chamber 14 is connected to the valve core through hole 21 of the one-way opening 11, and the valve cover 3 is provided with a first through hole 31 and a second through hole 32. The second through hole 32 is connected to the three-way opening 13. The first through hole 31 is connected to the valve core control chamber 14. The valve core drive unit is connected to the valve cover 3 and can cover and open the first through hole 31. The valve core drive unit is connected to the valve core. When the valve core drive unit opens the first through hole 31, the first through hole 31 is connected to the second through hole 32. The valve core can be pushed open by the water in the water inlet pipe 6 to allow the water to enter the three-way opening 13. When the valve core drive unit covers the first through hole 31, the valve core covers the two-way opening 12 to close the valve.

[0033] A water passage chamber 33 connecting the second through hole 32 and the first through hole 31 is provided on the valve core driving part, and a cover body 5 capable of covering the first through hole 31 is provided in the water passage chamber 33. The cover body 5 is connected with a pulling mechanism capable of pulling the cover body 5 to open the first through hole 31 and a resetting mechanism capable of resetting the cover body 5 to cover the first through hole 31 when there is no external force at the pulling mechanism. When the pulling mechanism pulls the cover body 5 to open the first through hole 31, the first through hole 31 is connected with the second through hole 32. When there is no external force at the pulling mechanism, the valve cover 3 covers the first through hole 31, and the valve core covers the two-way opening 12. The valve core is an elastic cover 2, the valve cover 3 and the bottom surface of the concave part of the valve body clamp the outer edge of the elastic cover 2, the middle part of the elastic cover 2 covers the two-way opening 12, and the valve core driving part includes a first return spring 22, the first return spring 22 is placed in the valve core control chamber 14, one end of the first return spring 22 is connected to the elastic cover 2, and the other end of the first return spring 22 is connected to the valve cover 3. The elastic cover 2 is sleeved on the shaping cover 20, one end of the first return spring 22 is in contact with the shaping cover 20, and the other end of the first return spring 22 is in contact with the valve cover 3, and the valve core through hole 21 passes through the elastic cover 2 and the shaping cover 20. A positioning rod 221 is provided on the first return spring 22, and the positioning rod 221 is inserted into the valve core through hole 21. The elastic cover 2 can be an elastic structure made of corrosion-resistant materials such as rubber.

[0034] The valve core drive unit includes a soft sleeve 51, the opening of which covers the top surface of the valve cover 3 so that the inner cavity of the soft sleeve 51 forms a water passage cavity 33, the soft sleeve 51 is connected to the cover body 5, the bottom of the cover body 5 is located in the inner cavity of the soft sleeve 51, and the top of the cover body 5 extends out of the inner cavity of the soft sleeve 51 and is connected to the pulling mechanism and the reset mechanism. The valve core drive unit includes a positioning ring 52, and the positioning ring 52 and the top surface of the valve cover 3 clamp the outer edge of the soft sleeve 51.

[0035] The pulling mechanism includes a slide bar 53, a slider 54, a pulling rod 55, and a rotating plate 56. One end of the rotating plate 56 is rotatably connected to the positioning ring 52, one side of the middle of the rotating plate 56 is connected to the top of the cover body 5, and the other side of the middle of the rotating plate 56 is connected to the reset mechanism. The slide bar 54 is arranged on the top surface of the valve cover 3 corresponding to the other end of the rotating plate 56. The slider 54 can be slidably connected to the slide bar 53 along the slide bar 53. The pulling rod 55 is linked with the slider 54 and is sleeved on the slide bar 53. A second return spring 57 is provided, one end of which contacts the valve cover 3, and the other end of which contacts the slider 54. When the pull rod 55 pulls the slider 54 to move downward relative to the slide rod 53, the slider 54 lifts the rotating plate 56, and the rotating plate 56 pulls the cover body 5 to separate from the first through hole 31. When there is no external force at the pull rod 55, the slider 54 is reset by the second return spring 57, and the rotating plate 56 is reset by the reset mechanism, and the cover body 5 covers the first through hole 31. Two limiting protrusions are provided on the top of the valve cover 3, and the two ends of the slide rod 53 are respectively clamped on the corresponding limiting protrusions. One end of the second return spring 57 contacts one of the limiting protrusions, and the other end contacts the slider 54.

[0036] The outer cover 30 is placed on the top of the valve cover 3, the valve core drive part is located in the outer cavity 34 formed by the outer cover 30 and the top surface of the valve cover 3, a positioning column 59 is provided on the positioning ring 52, a plate body through hole 561 that can pass the positioning column 59 is provided in the middle of the rotating plate 56, and the reset mechanism is a third reset spring 58, the third reset spring 58 is sleeved on the positioning column 59, one end of the third reset spring 58 is in contact with the inner wall of the outer cover 30, and the other end of the third reset spring 58 is in contact with the rotating plate 56. The slider 54 is a spherical body. The bottom surface of the rotating plate 56 close to the slider 54 is provided with an inclined surface 562 that can slide relative to the slider 54 and avoid being stuck with the slider 54. A spherical body recess that can be inserted into one end of the second reset spring 57 is provided at one end of the spherical body.

[0037] The pulling force of the pull rod 55 is provided by the second pull rope 72. A drain valve 7 is provided on the discharge port of the toilet. The specific structure of the drain valve 7 can refer to the technical solution in the background technology. The specific structure of the drain valve 7 belongs to the prior art and will not be described in detail. The drain valve 7 is usually closed. When the first pull rope 71 pulls the valve stem 73 of the drain valve 7 to rotate, the second pull rope 72 connected to the valve stem 73 pulls the pull rod 55, thereby realizing the opening of the water inlet valve. When there is no tension on the first pull rope 71, the second pull rope 72 is subjected to the reset tension of the pull rod 55, thereby pulling the valve stem 73 to reset, the water inlet 41 is closed, and the discharge port is also closed.

[0038] Working principle: After pulling the pull rod, the slider moves to lift the rotating plate, and the rotating plate pulls the cover body to separate from the first through hole. The water originally in the valve core control chamber flows into the water passage chamber, and then enters the flushing pipe from the second through hole. The water pressure in the valve core control chamber decreases, and the water in the water inlet pipe lifts the valve core, separating the valve core from the two-way opening, and the water flows from the two-way opening into the flushing pipe for flushing.

[0039] After flushing, the pulling force on the pull rod is cancelled, and the second reset spring pushes the slider to reset. The rotating plate is pushed to reset by the third reset spring so that the cover body covers the first through hole. The valve core control chamber is connected with the water inlet pipe through the valve core through hole, and the water pressure of the valve core control chamber and the water inlet pipe is restored to balance. Therefore, the first reset spring pushes the valve core to reset and cover the two-way opening, and water no longer enters the flushing pipe, and the flushing operation is ended.

Claims

1. A water inlet valve for a toilet, comprising a valve, a water outlet of the valve being connected to a water inlet (41) of a flushing pipe of the toilet, characterized in that: The valve comprises a valve cover (3), a valve core, a three-way valve body (1) and a valve core driving part; a one-way opening (11) of the valve body (1) can be connected to a water inlet pipe (6); a three-way opening (13) of the valve body (1) is connected to a water inlet (41); a valve body recess is provided on the valve body (1); the valve cover (3) is sealed on the opening of the valve body recess; a two-way opening (12) of the valve body (1) is located in a valve core control cavity (14) formed by the valve cover (3) and the valve body recess; the valve core cover is placed on the two-way opening (12); a valve core connecting the valve core control cavity (14) and the one-way opening (11) is provided on the valve core. The valve core through hole (21), the valve cover (3) is provided with a first through hole (31) and a second through hole (32), the second through hole (32) is connected to the three-way opening (13), the first through hole (31) is connected to the valve core control chamber (14), the valve core drive unit is connected to the valve cover (3) and can cover and open the first through hole (31), the valve core drive unit is connected to the valve core, when the valve core drive unit opens the first through hole (31), the first through hole (31) is connected to the second through hole (32), the valve core can be pushed open by the water in the water inlet pipe (6) so that the water enters the three-way opening (13) In the embodiment of the present invention, when the valve core driving part covers the first through hole (31), the valve core covers the two-way opening (12) to close the valve; a water passage cavity (33) communicating with the second through hole (32) and the first through hole (31) is provided on the valve core driving part, a cover body (5) capable of sealing the first through hole (31) is provided in the water passage cavity (33), the cover body (5) is connected to a pulling mechanism capable of pulling the cover body (5) to open the first through hole (31) and a resetting mechanism capable of resetting the cover body (5) to cover the first through hole (31) when there is no external force on the pulling mechanism, and when the pulling mechanism pulls the cover body (5) to open the first through hole (31), the cover body (5) is closed. 1), the first through hole (31) is connected to the second through hole (32), when there is no external force at the pulling mechanism, the valve cover (3) covers the first through hole (31), and the valve core covers the two-way opening (12); the valve core driving part includes a soft sleeve (51), the opening cover of the soft sleeve (51) is on the top surface of the valve cover (3) so that the inner cavity of the soft sleeve (51) is formed into a water passage cavity (33), the soft sleeve (51) is connected to the cover body (5), the bottom of the cover body (5) is located in the inner cavity of the soft sleeve (51), and the top of the cover body (5) extends out of the inner cavity of the soft sleeve (51) and is connected to the pulling mechanism and the reset mechanism.

2. The water inlet valve according to claim 1, characterized in that: The valve core is an elastic cover (2), the valve cover (3) and the bottom surface of the concave portion of the valve body clamp the outer edge of the elastic cover (2), the middle portion of the elastic cover (2) covers the two-way opening (12), and the valve core drive portion includes a first return spring (22), the first return spring (22) is placed in the valve core control chamber (14), one end of the first return spring (22) is connected to the elastic cover (2), and the other end of the first return spring (22) is connected to the valve cover (3).

3. The water inlet valve according to claim 2, characterized in that: The elastic cover (2) is sleeved on the shaping cover (20), one end of the first return spring (22) contacts the shaping cover (20), the other end of the first return spring (22) contacts the valve cover (3), and the valve core through hole (21) passes through the elastic cover (2) and the shaping cover (20).

4. The water inlet valve according to any one of claims 1 to 3, characterized in that: The valve core driving part comprises a positioning ring (52), and the positioning ring (52) and the top surface of the valve cover (3) clamp the outer edge of the soft sleeve (51).

5. The water inlet valve according to claim 4, characterized in that: The pulling mechanism comprises a sliding rod (53), a slider (54), a pulling rod (55), and a rotating plate (56); one end of the rotating plate (56) is rotatably connected to the positioning ring (52); one side of the middle of the rotating plate (56) is connected to the top of the cover body (5); the other side of the middle of the rotating plate (56) is connected to the reset mechanism; the sliding rod (54) is arranged on the top surface of the valve cover (3) corresponding to the other end of the rotating plate (56); the slider (54) can be slidably connected to the sliding rod (53) along the sliding rod (53); the pulling rod (55) is linked to the slider (54) and is sleeved on the sliding rod (53). A second return spring (57) is provided, one end of the second return spring (57) contacts the valve cover (3), and the other end of the second return spring (57) contacts the slider (54). When the pull rod (55) pulls the slider (54) to move downward relative to the slide rod (53), the slider (54) lifts the rotating plate (56), and the rotating plate (56) pulls the cover body (5) to separate from the first through hole (31). When there is no external force at the pull rod (55), the slider (54) is reset by the second return spring (57), the rotating plate (56) is reset by the reset mechanism, and the cover body (5) covers the first through hole (31).

6. The water inlet valve according to claim 5, characterized in that: An outer cover body (30) is placed on the top cover of the valve cover (3), and the valve core driving part is located in an outer cavity (34) formed by the outer cover body (30) and the top surface of the valve cover (3). A positioning column (59) is arranged on the positioning ring (52), and a plate body through hole (561) capable of passing the positioning column (59) is arranged in the middle of the rotating plate (56). The reset mechanism is a third reset spring (58), and the third reset spring (58) is sleeved on the positioning column (59). One end of the third reset spring (58) contacts the inner wall of the outer cover body (30), and the other end of the third reset spring (58) contacts the rotating plate (56).

7. The water inlet valve according to claim 5, characterized in that: The sliding block (54) is a spherical body.

8. The water inlet valve according to claim 5, characterized in that: The bottom surface of the rotating plate (56) close to the slider (54) is provided with an inclined surface (562) which can slide relative to the slider (54) and avoid being stuck with the slider (54).

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