A valve and a toilet using the valve

Abstract

The present invention discloses a valve and a toilet using the valve. The valve includes a body, a sliding member and an elastic member. The body is provided with a water passage. The sliding member is slidably arranged on the body and is provided with a water passage cavity and a water hole connecting the water passage cavity and the water passage. The two ends of the elastic member are respectively abutted against the sliding member and the body. The sliding member cooperates with the body to form a pressure cavity connected with the water passage cavity. The sliding member is configured to be suitable for being driven by pressure to move toward the water outlet section of the water passage when water enters the water passage cavity so that the water hole enters the water outlet section and reduces the water flow area between the water inlet section and the water outlet section of the water passage. The elastic member is configured to be suitable for driving the sliding member away from the water outlet section when the water hole releases pressure so as to increase the water flow area between the water inlet section and the water outlet section. The toilet adopts the valve and utilizes the characteristic of the valve to gradually reduce the water flow rate during use, so that the water flow rate sprayed to the water trap is gradually reduced during the spraying process, thereby solving the problem of loud and continuous noise when the toilet is flushed.

Description

Technical Field

[0001] The invention relates to the technical field of toilets, and in particular to a valve and a toilet using the valve. Background Art

[0002] In a toilet that does not use a water tank to store water, water needs to be sprayed into the toilet trap through the flush pipe to flush the dirt into the siphon pipe. During the siphon effect of the siphon pipe, a large amount of water in the trap is sucked into the siphon pipe, and the flush pipe is exposed to the air and remains in a spraying state, which will continue to generate noise. Summary of the invention

[0003] The purpose of the present invention is to overcome the above-mentioned defects or problems existing in the background technology, and to provide a valve and a toilet using the valve. The toilet utilizes the characteristic of the valve to gradually reduce the water flow rate during use, so that the water flow rate sprayed to the water trap is gradually reduced during the spraying process, thereby solving the problem of loud and continuous noise when the toilet is flushing.

[0004] To achieve the above object, the present invention adopts the following technical solutions:

[0005] A valve comprises: a body, which is provided with a water passage, and the water passage comprises a water inlet section and a water outlet section; a sliding member, which is slidably arranged on the body, and is provided with a water passage cavity therein, and is provided with a water through hole connecting the water passage cavity and the water passage; and an elastic member, whose two ends respectively abut against the sliding member and the body; the sliding member cooperates with the body to form a pressure cavity connected with the water passage cavity, and the sliding member is configured to be suitable for being driven by pressure to move toward the water outlet section when the water inlet section supplies water to the water passage cavity and increases the pressure in the pressure cavity so that the water through hole enters the water outlet section and reduces the water flow area between the water inlet section and the water outlet section; the elastic member is configured to be suitable for driving the sliding member away from the water outlet section to increase the water flow area between the water inlet section and the water outlet section when the water inlet section stops supplying water to the water passage cavity and releases the pressure of the water passage cavity.

[0006] Furthermore, the end of the sliding member away from the water passage extends into the pressure chamber and forms a pressure-bearing surface for bearing pressure to drive the sliding member to move; the pressure chamber is configured to accumulate air and / or receive water flow to increase its internal pressure when water enters the water passage chamber and drive the sliding member to move toward the water outlet section by air pressure and / or water pressure.

[0007] Furthermore, it also includes an annular sealing diaphragm; the inner edge of the sealing diaphragm is fixedly connected to the sliding member, and the outer edge is fixedly connected to the body, so as to cooperate with the body and the sliding member to enclose the pressure chamber.

[0008] Furthermore, the sliding member is provided with a limiting flange; the limiting flange is configured to be suitable for abutting and cooperating with the main body so as to keep the pressure-bearing surface away from the cavity wall opposite to it in the pressure cavity.

[0009] Furthermore, the main body is provided with a sliding cavity and a vent hole connecting the sliding cavity with the outside; the elastic member is sleeved on the sliding member and located in the sliding cavity.

[0010] Furthermore, the sliding member includes a sliding rod, a throttling bolt and a rod end; the sliding rod is slidably arranged in the sliding cavity, in which the water-passing cavity is arranged; the throttling bolt is fixedly connected to the sliding rod, on which a throttling hole connecting the water-passing cavity and the pressure cavity is arranged; the rod end is fixedly connected to the sliding rod and is located in the water-passing channel, on which the water-passing hole and the limiting flange are arranged; the limiting flange is configured to be suitable for abutting against the channel wall of the water-passing channel to limit the movement of the sliding member away from the water outlet section.

[0011] Furthermore, the throttling bolt cooperates with the sliding rod to clamp the inner edge of the sealing diaphragm.

[0012] Furthermore, the water passage forms a water hole between the water inlet section and the water outlet section; when the sliding member moves toward the water outlet section, it approaches the water hole to reduce the water flow area between the water inlet section and the water outlet section, and when the sliding member moves away from the water outlet section, it moves away from the water hole to increase the water flow area between the water inlet section and the water outlet section.

[0013] Furthermore, the main body includes a cover body, a seat body and a water flow body; the cover body is fixedly connected to the seat body and cooperates with the sliding member to form the pressure chamber; the seat body is provided with the sliding chamber and the vent hole; the water flow body is fixedly connected to the seat body and is provided with the water flow channel.

[0014] In addition, the present invention also provides a toilet, which includes a toilet body, a control valve and a flushing pipe, the toilet body is provided with a water trap, and also includes a valve as described in any of the above items; one end of the control valve is connected to the external water inlet, and the other end is connected to the water inlet section of the water passage of the valve; one end of the flushing pipe is connected to the water outlet section of the water passage of the valve, and the other end is provided with a jet port facing the water trap.

[0015] It can be seen from the above description of the present invention that, compared with the prior art, the present invention has the following beneficial effects:

[0016] 1. A pressure chamber is set between the body and the sliding part. When water flows into the water passage of the body, the water will flow into the water passage chamber through the water holes on the sliding part, and squeeze the air originally in the water passage chamber into the pressure chamber, or inject water into the pressure chamber through the water passage chamber. At this time, the air pressure or water pressure in the pressure chamber increases, and a driving force is applied to the sliding part to move toward the water outlet section of the water passage. This driving force overcomes the elastic force of the elastic part, so that the water flow area of ​​the water inlet section and the water outlet section of the water passage is reduced, thereby reducing the water outlet flow of the valve. Under the pressure of the pressure chamber and the elastic force of the elastic part, the water outlet flow rate will be maintained at a stable state of low flow. At the same time, as the sliding part The sliding of the slider will gradually move the position of the water hole on the slider to the water outlet section. At this time, the water inlet section stops inletting water, and the water hole changes from water inlet to pressure relief, so that the water in the pressure chamber or the water passage chamber can flow out. The outflow of water causes the air pressure or water pressure in the pressure chamber to decrease, and the driving force on the slider is also reduced. The slider will return to its original position under the action of the elastic member, so that the water flow area between the water inlet section and the water outlet section of the water passage will increase again. When the water is inletted next time, the water outlet in the initial stage can maintain a large flow rate. Through the valve, the water outlet flow can be automatically large in the initial stage and reduced in the subsequent stage, without affecting the water outlet flow rate when the water is discharged again.

[0017] 2. A pressure-bearing surface is set on the sliding part. The pressure chamber can be used to accumulate air or receive water flow and increase the internal pressure. The increased air pressure or water pressure can exert force on the pressure-bearing surface of the sliding part, thereby pushing the sliding part to slide, and after the pressure is released, the sliding part can be reset unimpeded.

[0018] 3. An annular sealing diaphragm is provided to ensure the sealing of the pressure chamber.

[0019] 4. A limiting flange is provided on the sliding member, and the limiting flange can abut against the main body to prevent the pressure-bearing surface of the sliding member from abutting against a cavity wall of the pressure cavity, so that the pressure-bearing surface cannot receive the force of the water pressure or air pressure in the pressure cavity.

[0020] 5. A sliding cavity is provided on the main body to facilitate installation of the sliding member and the elastic member, and a vent hole is provided at the same time so that the air in the sliding cavity can be discharged through the vent hole when the sliding member slides.

[0021] 6. The sliding part includes a sliding rod, a throttle bolt and a rod end. The throttle hole on the throttle bolt can be used to adjust the flow of water entering the pressure chamber, so that the time required for the sliding process of the sliding part of the valve can be adjusted, further improving the applicability of the valve; the sliding rod and the rod end are separated, so that the sliding rod can be installed in the sliding chamber and then the rod end can be installed on the sliding rod, making assembly more convenient.

[0022] 7. The throttle bolt can also cooperate with the sliding rod to clamp the sealing film, effectively ensuring the sealing of the pressure chamber.

[0023] 8. A water hole is provided in the water passage, and the sliding member adjusts the water flow area between the water inlet section and the water outlet section of the water passage by moving closer to or farther away from the water hole.

[0024] 9. The main body includes the cover body, the seat body and the water flow body. The three parts can be separated to facilitate the assembly of the valve.

[0025] 10. In addition, the toilet provided adopts the above-mentioned valve, and the valve is arranged downstream of the control valve so that the valve can work. When water is sent to the valve through the control valve, the jet outlet of the flush pipe will initially spray a large flow of water, but at this time there is still water in the water trap, so the water jetting will not produce a large noise. When the water in the water trap is sucked into the siphon pipeline in the toilet body, the valve will control the water flow rate of the jet outlet to gradually decrease, thereby reducing the noise caused by the water jetting from the jet outlet. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0027] Figure 1 An exploded view of the structure of a valve according to an embodiment of the present invention;

[0028] Figure 2 for Figure 1 A schematic cross-sectional view of a valve in FIG.

[0029] Figure 3 A cross-sectional schematic diagram of an embodiment of a toilet provided by the present invention and an enlarged schematic diagram of a valve therein in an initial state;

[0030] Figure 4 A cross-sectional schematic diagram of an embodiment of a toilet provided by the present invention and an enlarged schematic diagram of a valve therein in a sliding state;

[0031] Figure 5 This is a schematic structural diagram of an embodiment of a toilet provided by the present invention.

[0032] Description of main reference numerals:

[0033] Cover body 10; fixing bolt 11; sealing diaphragm 20; pressure chamber 201; sliding rod 30; water passage chamber 301; throttling bolt 31; throttling hole 311; elastic member 32; rod end 33; water passage hole 331; limiting flange 332; seat body 40; sliding chamber 401; vent hole 41; sliding member sealing ring 42; main body sealing ring 43; water passage 50; water passage 501; water inlet section 502; water outlet section 503; water outlet 51; toilet body 60; water trap 61; control valve 62; siphon pipeline 63; flushing nozzle 64; flushing pipeline 641; valve 65; ring washing nozzle 66; ring washing pipeline 661. DETAILED DESCRIPTION

[0034] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are preferred embodiments of the present invention and should not be regarded as excluding other embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] In the claims, description and the above-mentioned drawings of the present invention, unless otherwise clearly defined, the use of terms such as "first", "second" or "third" etc. are for distinguishing different objects rather than for describing a specific order.

[0036] In the claims, specification and the above-mentioned drawings of the present invention, unless otherwise explicitly defined, directional words, such as the terms "center", "lateral", "longitudinal", "horizontal", "vertical", "top", "bottom", "inside", "outside", "up", "down", "front", "back", "left", "right", "clockwise", "counterclockwise", etc., indicating directions or positional relationships are based on the directions and positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the specific protection scope of the present invention.

[0037] In the claims, specification and the above drawings of the present invention, unless otherwise clearly defined, if the term "fixed connection" or "fixed connection" is used, it should be understood in a broad sense, that is, any connection method without a displacement relationship and relative rotation relationship between the two, that is to say, including non-detachable fixed connection, detachable fixed connection, integrated connection and fixed connection through other devices or elements.

[0038] In the claims, description and drawings of the present invention, if the terms "include", "have" and their variations are used, they are intended to mean "including but not limited to".

[0039] See also Figure 5 , Figure 5 A schematic structural diagram of an embodiment of a toilet provided by the present invention is shown, which comprises a toilet body 60, a control valve 62, a flushing nozzle 64, a flushing pipeline 641, a ring washing nozzle 66, a ring washing pipeline 661 and a valve 65.

[0040] The toilet body 60 is provided with a siphon pipe 63 and a water trap 61 .

[0041] The control valve 62 is installed on the toilet body 60, and is provided with a water inlet and two water outlets. The water inlet is connected to external water, which can be municipal tap water, and the two water outlets are respectively connected to the valve 65 and the wash ring pipeline 661. The water output of the two water outlets can be switched through the control valve 62, that is, the water output state can be switched to stop water output, send water to the valve 65 or send water to the wash ring pipeline 661.

[0042] The flushing nozzle 64 and the flushing pipe 641 are combined to form a flushing pipe. One end of the flushing pipe is connected to the valve 65, and the other end is provided with a jet port toward the water trap 61. Specifically, one end of the flushing pipe 641 is connected to the valve 65, and the other end of the flushing pipe 641 is connected to the flushing nozzle 64. The flushing nozzle 64 is fixed on the toilet body 60 and its opening for water discharge faces the water trap 61. Here, the opening of the flushing nozzle 64 forms the jet port of the flushing pipe. When the water flows through the control valve 62, the valve 65 and the flushing pipe 641 and enters the flushing nozzle 64, the water flows from the opening of the flushing nozzle 64 toward the water trap 61, so that the water in the water trap 61 enters the siphon pipe 63, so that the siphon pipe 63 sucks the water in the water trap 61 through the siphon effect, and also discharges the dirt in the water trap 61.

[0043] The ring-washing nozzle 66 and the ring-washing pipeline 661 spray water toward the toilet ring of the toilet body 60 for cleaning, and also play the role of replenishing water to the water trap 61.

[0044] Reference Figure 1 and Figure 2 The valve 65 mainly includes a body, a sliding member, a sealing diaphragm 20, an elastic member 32 and a plurality of sealing rings.

[0045] The main body includes a cover body 10 , a seat body 40 , a water flow body 50 and a plurality of fixing bolts 11 .

[0046] A cylindrical countersunk hole is provided in the middle of the seat body 40 along the vertical direction, and a through hole is provided at the center of the bottom wall of the cylindrical countersunk hole. A vent hole 41 that penetrates to the outside is also provided at the hole wall of the cylindrical countersunk hole.

[0047] The cover 10 is fixed to the top of the base 40 by means of fixing bolts 11 and cooperates with the cylindrical countersunk hole in the middle of the base 40 to form a chamber.

[0048] The water passing body 50 is also fixed to the bottom of the seat body 40 by fixing bolts 11, and a water passing channel 501 is arranged inside the water passing body 501, which is divided into a water inlet section 502 and a water outlet section 503, and a water inlet 51 is arranged in the middle of the two. The water flow in the water inlet section 502 can enter the water outlet section 503 only after passing through the water inlet 51. A body sealing ring 43 is arranged between the water passing body 50 and the seat body 40 to ensure the sealing of the water passing channel 501 and the outside.

[0049] It should be noted that the axial direction of the water outlet 51 is consistent with the extension direction of the water outlet section 503 , and the axis of the through hole at the center of the seat body 40 is colinear with the axis of the water outlet 51 .

[0050] Here, the extending direction of the water outlet section 503 is taken as the up-down direction.

[0051] The sliding member includes a sliding rod 30 , a throttle bolt 31 and a rod end 33 .

[0052] A water-passing cavity 301 is provided inside the sliding rod 30. The water-passing cavity 301 has openings at both the upper and lower ends, and an inner wall near the upper end is provided with an internal thread, which is used to be screwed and fixed with a throttle bolt 31. The throttle bolt 31 is screwed and fixed at the top position of the sliding rod 30, and a throttle hole 311 is provided on it. The throttle hole 311 is connected to the water-passing cavity 301, and its top end surface also forms a pressure-bearing surface. The rod end 33 is fixed at the bottom end position of the sliding rod 30, and a water-passing hole 331 is provided on it. The water-passing hole 331 is connected to the water-passing cavity 301.

[0053] The sliding rod 30 can be inserted into the through hole at the center of the seat body 40, and its bottom end can be exposed from the bottom of the through hole to reach the water passage 501. The rod end 33 is fixed to the sliding rod 30 from the bottom position of the sliding rod 30, and the water hole 331 connects the water passage 501 and the water passage cavity 301. When the rod end 33 is fixed to the sliding rod 30, a limiting flange 332 is formed on the periphery of its top end, and the limiting flange 332 can be abutted and matched with the body. Specifically, the diameter of the limiting flange 332 is larger than the aperture of the through hole on the seat body 40, so when the limiting flange 332 hits the channel wall of the water passage 501, the sliding member can no longer move.

[0054] The sliding rod 30 achieves vertical sliding relative to the main body by plugging, and a sliding member sealing ring 42 is installed between the sliding rod 30 and the hole wall of the through hole of the seat body 40. The sliding member sealing ring 42 is a Y-shaped sealing ring, which can ensure the sealing between the chamber formed by the cover body 10 and the seat body 40 and the water passage 501.

[0055] The sealing diaphragm 20 is an annular structure, the inner edge of which is fixed to the sliding member, and the outer edge of which is fixed to the body, so as to separate the chamber formed by the cover body 10 and the seat body 40 into a pressure chamber 201 located at the upper side and a sliding chamber 401 located at the lower side, and the pressure chamber 201 and the sliding chamber 401 are sealed and isolated by the sealing diaphragm 20. The pressure chamber 201 is configured to increase its internal pressure by accumulating air and / or receiving water flow when water is flowing into the water passage chamber 301, and to drive the sliding member to move toward the water outlet section 503 by air pressure and / or water pressure.

[0056] Here, the inner edge of the sealing diaphragm 20 is sleeved on the throttle bolt 31, so that the pressure chamber 201 can communicate with the water chamber 301 and the pressure chamber 201 through the throttle hole 311, and the throttle bolt 31 also cooperates with the sliding rod 30 to clamp the inner edge of the sealing diaphragm 20 to fix the sealing diaphragm 20 on the sliding member, and the outer edge of the sealing diaphragm 20 is clamped by the cover body 10 and the seat body 40, so that the outer edge position of the sealing diaphragm 20 is fixed relative to the body, and at this time, the sealing diaphragm 20, the bottom wall of the cover body 10 and the pressure-bearing surface on the adjusting bolt 31 cooperate to form the pressure chamber 201. When the sliding member slides up and down, the sealing diaphragm 20 will move with the sliding of the sliding member, thereby adjusting the volume of the pressure chamber 201.

[0057] In addition, it should be noted that the sealed isolation of the pressure chamber 201 and the sliding chamber 401 achieved by the sealing diaphragm 20 is only one of the implementation methods. In other embodiments, the isolation of the chamber can be achieved by directly installing a sealing ring between the sliding rod 30 and the inner wall of the countersunk hole of the seat body 40, that is, the sliding member can directly cooperate with the main body to form the pressure chamber 201 and the sliding chamber 401, and the end of the sliding member away from the water passage 501 extends into the end of the pressure chamber 201 to form the above-mentioned pressure-bearing surface for bearing pressure to drive the sliding member to move.

[0058] The elastic member 32 is a spring, which is installed in the sliding cavity 401, and has two ends respectively abutting against the sliding member and the body, and applies an upward thrust to the sliding member.

[0059] In addition, in this embodiment, the water inlet section 502 of the water passage 501 of the valve 65 is communicated with one of the water outlets of the control valve 62 , and the water outlet section 503 thereof is communicated with the flushing pipeline 641 .

[0060] When using, refer to Figure 3and Figure 4 , the control valve 62 switches the water outlet to the valve 65, and the water flows from the water inlet section 502 into the valve 65 and flows to the water outlet section 503. Figure 3 At this time, the valve 65 is in the initial state, and the water flow in the water passage 501 will enter the water passage chamber 301 through the water passage hole 331. At this time, if the water flow pressure itself is relatively large, when a relatively large water flow enters the water passage chamber 301 instantly, the air originally in the water passage chamber 301 and the pressure chamber 201 cannot escape, and the water flow will press the air originally in the water passage chamber 301 into the pressure chamber 201, thereby increasing the air pressure in the pressure chamber 201. Figure 4 At this time, the valve 65 is in a sliding state, and the air pressure acts on the pressure-bearing surface of the sliding member, thereby pushing the sliding member to overcome the elastic force of the elastic member 32 and move toward the water outlet section 503, that is, pushing the sliding member to move downward. During the downward movement of the sliding member, the limiting flange 332 first breaks away from the contact with the body, and then the rod end 33 gradually approaches the water outlet 51, thereby reducing the water flow area between the water inlet section 502 and the water outlet section 503. When the sliding member continues to move downward, the water outlet section 503 The water pressure at the valve will decrease due to the reduction of the water flow area. At this time, the sliding member will be in a stable state under the pressure of the pressure chamber 201 and the elastic force of the elastic member 32, and the water flow rate of the valve will be in a stable low flow state. Then the water inlet of the water inlet section 502 is closed. At this time, the water in the water passage chamber 301 is discharged, the pressure in the pressure chamber 201 is reduced, and the elastic force of the elastic member 32 begins to be greater than the pressure in the pressure chamber 201, thereby pushing the sliding member to slide upward, and also causing the rod end 33 of the sliding member to begin to move away from the water flow port 51, thereby increasing the water flow area between the water inlet section 502 and the water outlet section 503, until the limiting flange on the rod end 33 abuts against the main body, and the sliding member reaches its initial position. The setting of the limiting flange can prevent the pressure-bearing surface from being too close to the bottom wall of the cover body 10 in the pressure chamber 201, so that the pressure chamber 201 has a sufficient initial volume.

[0061] In addition, it should be noted that after multiple cycles of the valve, the air in the pressure chamber 201 will be carried away by the water flow, so in subsequent use, the water flow will fill the water chamber 301 and the pressure chamber 201. At this time, the water pressure can also be used to apply force to the pressure-bearing surface to push the sliding part to slide downward. The working process can refer to the above-mentioned use process and will not be repeated here.

[0062] When the valve 65 is installed in the toilet, water is first supplied to the valve 65 through the control valve 62 when flushing the toilet. The valve 65 is in the initial state at this time. The water flow area between the water inlet section 502 and the water outlet section 503 is the largest, so the water flow rate sprayed from the flushing nozzle 64 is also the largest. However, there is still water in the trap 61 at this time. The flushing nozzle 64 sprays water underwater, so it will not cause a lot of noise. After the water in the trap 61 is sucked away by the siphon pipe 63, the valve 65 has entered a low-flow water discharge state. Since the impact force of the water sprayed from the flushing nozzle 64 is low, it will not generate a lot of noise. After that, when the flushing is completed, the control valve 62 can close the water supply to the valve 65. During the next flushing, since the valve 65 returns to the initial state, the flushing nozzle 64 can still spray a large flow of water at the beginning.

[0063] It should be noted that the control valve 62 should be installed at the water inlet end of the valve 65. Only in this way can the valve 65 be restored to its initial state by closing the control valve 62, that is, the sliding part is in a state away from the water outlet 51, so that the flushing nozzle 64 can spray a large flow of water at the beginning when it is used next time.

[0064] The present invention provides a valve 65 and a toilet using the valve 65, which utilize the characteristic of the valve 65 to gradually reduce the water flow rate during use, so that the water flow rate sprayed to the water trap is gradually reduced during the spraying process, thereby solving the problem of loud and continuous noise when the toilet is flushing.

[0065] The description of the above specification and embodiments is used to explain the protection scope of the present invention, but does not constitute a limitation on the protection scope of the present invention. Through the enlightenment of the present invention or the above embodiments, ordinary technicians in this field can obtain modifications, equivalent substitutions or other improvements to the embodiments of the present invention or part of the technical features thereof through logical analysis, reasoning or limited experiments, which should be included in the protection scope of the present invention.

Claims

1. A valve, characterized in that it comprises: A main body, which is provided with a water passage, wherein the water passage comprises a water inlet section and a water outlet section; A sliding member, which is slidably mounted on the main body, and has a water passage cavity therein and a water passage hole communicating with the water passage cavity and the water passage; and An elastic member, two ends of which are respectively in contact with the sliding member and the body; The sliding member cooperates with the body to form a pressure chamber connected to the water passage chamber, and the sliding member is configured to be driven by pressure to move toward the water outlet section when the water inlet section supplies water to the water passage chamber and the pressure in the pressure chamber increases, so that the water through hole enters the water outlet section and reduces the water flow area between the water inlet section and the water outlet section; The elastic member is configured to drive the sliding member away from the water outlet section to increase the water flow area between the water inlet section and the water outlet section when the water inlet section stops supplying water to the water passage cavity and the water passage cavity is depressurized; The pressure chamber is configured to accumulate air and / or receive water flow to increase its internal pressure when water flows into the water passage chamber, and to drive the sliding member to move toward the water outlet section by air pressure and / or water pressure.

2. A valve according to claim 1, characterized in that: The end of the sliding member away from the water passage extends into the pressure chamber and forms a pressure-bearing surface for bearing pressure to drive the sliding member to move.

3. A valve as claimed in claim 2, characterized in that: It also includes an annular sealing diaphragm; the inner edge of the sealing diaphragm is fixedly connected to the sliding member, and the outer edge is fixedly connected to the body, so as to cooperate with the body and the sliding member to enclose the pressure chamber.

4. A valve as claimed in claim 3, characterized in that: The sliding member is provided with a limiting flange; the limiting flange is configured to be suitable for abutting and cooperating with the body to keep the pressure-bearing surface away from the cavity wall opposite to it in the pressure cavity.

5. A valve as claimed in claim 4, characterized in that: The main body is provided with a sliding cavity and a vent hole communicating the sliding cavity with the outside; the elastic member is sleeved on the sliding member and is located in the sliding cavity.

6. A valve according to claim 5, characterized in that: The sliding member includes a sliding rod, a throttling bolt and a rod end; the sliding rod is slidably arranged in the sliding cavity, in which the water-passing cavity is arranged; the throttling bolt is fixedly connected to the sliding rod, on which a throttling hole connecting the water-passing cavity and the pressure cavity is arranged; the rod end is fixedly connected to the sliding rod and is located in the water-passing channel, on which the water-passing hole and the limiting flange are arranged; the limiting flange is configured to be suitable for abutting against the channel wall of the water-passing channel to limit the movement of the sliding member away from the water outlet section.

7. A valve according to claim 6, characterized in that: The throttling bolt cooperates with the sliding rod to clamp the inner edge of the sealing diaphragm.

8. A valve as claimed in claim 1, characterized in that: The water passage forms a water hole between the water inlet section and the water outlet section; the sliding member approaches the water hole when moving toward the water outlet section to reduce the water flow area between the water inlet section and the water outlet section, and moves away from the water hole when moving away from the water outlet section to increase the water flow area between the water inlet section and the water outlet section.

9. A valve as claimed in claim 5, characterized in that: The main body comprises a cover body, a seat body and a water-passing body; the cover body is fixedly connected to the seat body and cooperates with the sliding member to form the pressure chamber; the seat body is provided with the sliding chamber and the vent hole; The water passing body is fixedly connected to the seat body and is provided with the water passing channel.

10. A toilet, comprising a toilet body, a control valve, and a flushing pipe, wherein the toilet body is provided with a water trap, wherein: Also includes a valve as described in any one of claims 1-9; One end of the control valve is connected to the external water inlet, and the other end is connected to the water inlet section of the water passage of the valve; One end of the flushing pipe is connected to the water outlet section of the water passage of the valve, and the other end is provided with a jet port facing the water trap.

Images