A water inlet valve device

Abstract

The present invention discloses a water inlet valve device, which includes a venturi ejector and a float mechanism linked to the venturi ejector, the float mechanism is provided with a accommodating chamber, the accommodating chamber is provided with a first float and a second float for controlling the operation of the venturi ejector, the first float and the second float both move along the axial direction of the accommodating chamber, in a first state, the bottom surface of the first float and the bottom surface of the second float both fit with the bottom surface of the accommodating chamber; in a second state, the first float rises to a preset height to restrict the second float from continuing to move upward; the present invention has a simple structure, stable locking and good flushing effect.

Description

Technical Field

[0001] The invention relates to a water inlet valve device. Background Art

[0002] The water inlet valve has a wide range of applications, especially in the field of sanitary ware. In a toilet, the water flow in the water tank is controlled by the water inlet valve to achieve the flushing effect. In the water inlet valve, two floats are usually set, one float is connected to the water inlet pipe to form the effect of controlling the water inlet, and the other float is connected to the venturi ejector to control the flushing effect. However, the existing float is achieved by the magnet and the magnet or the metal being attracted together, and the gravity of the float is compared to achieve the control effect. However, since the magnet and the magnet or the metal are immersed in water for a long time during use, and there is also buoyancy between themselves and the water, it is difficult to control the distance between the two during use. If the distance is not well controlled, it will seriously affect the overall use effect. Moreover, the magnetism of the magnet will be weakened if it is immersed in water for a long time, which will also affect the actual use. Summary of the invention

[0003] The main technical problem solved by the present invention is to provide a water inlet valve device.

[0004] The technical solution adopted by the present invention to solve its technical problem is: a water inlet valve device, which includes a venturi ejector and a float mechanism linked to the venturi ejector, the float mechanism is provided with a accommodating chamber, the accommodating chamber is provided with a first float and a second float for controlling the operation of the venturi ejector, the first float and the second float both move along the axial direction of the accommodating chamber, in the first state, the bottom surface of the first float and the bottom surface of the second float both fit with the bottom surface of the accommodating chamber; in the second state, the first float rises to a preset height to restrict the second float from continuing to move upward.

[0005] This structural setting can achieve a control effect compared to the existing magnet combination, and this structure uses two floats to restrict each other, which has better stability. The first state is the initial state. When there is no water in the water tank, the first float and the second float are both located on the bottom surface of the accommodating cavity due to gravity, and fit with the bottom surface of the accommodating cavity. At this time, the second float controls the Venturi ejector to not work. When the water tank is filled with water, the first float and the second float move along the axial direction of the accommodating cavity due to the buoyancy of the water. When the water in the water tank reaches a preset height, that is, the second state, the external water stops entering, the second float moves up, and no longer blocks the Venturi ejector. At this time, the first float will restrict the second float from stopping movement, thereby achieving a control effect. Since the Venturi ejector is not blocked at this time, the water tank is drained, and the Venturi ejector works, negative pressure is generated to achieve a flushing effect. After the water in the water tank is discharged out of the water tank, the second buoy and the first buoy drop due to gravity, and the second buoy blocks the Venturi ejector again, so that the Venturi ejector does not work.

[0006] It also includes a limiting mechanism, one end of which is linked to the first buoy, and the other end of which is located on the movement track of the second buoy to limit its continued movement.

[0007] The setting of the limit mechanism makes the cooperation between the two more stable, thus achieving the control effect.

[0008] Among them, the limiting mechanism includes a first rotating member, which is fixed in the accommodating cavity and is rotatably arranged relative to the accommodating cavity. One end of the first rotating member is linked to the first buoy, and the other end is provided with a locking part. The second buoy is provided with a hook part. The second buoy rises to a preset height, and the hook part cooperates with the locking part to lock.

[0009] By adopting the setting of the first rotating part, in the first state, the locking part does not cooperate with the hook part. Only in the second state, due to the rise of the first float, the force in the axial direction is converted into the radial rotational force of the first rotating part, thereby causing the locking part to rotate. At this time, the locking part cooperates with the hook part to achieve a locking effect.

[0010] The first rotating member is provided with a first support leg and a second support leg, the first buoy is linked with the first support leg and drives the first rotating member to rotate, and the second support leg cooperates with the second buoy.

[0011] The arrangement of the two supporting feet makes the rotation of the first rotating member more stable.

[0012] Wherein, a second rotating member is provided on the second supporting leg, the second rotating member is rotatably arranged relative to the second supporting leg, and the locking portion is located on the second rotating member.

[0013] The second rotating member is provided to further improve the matching effect. During use, the second buoy can push the locking portion away and move axially upward. At this time, due to the effect of gravity, the second rotating member makes the locking portion cooperate with the hook portion to achieve a locking effect.

[0014] Wherein, a gravity portion is provided on the second rotating member, and the gravity portion is located at an end away from the second supporting leg.

[0015] The gravity part is arranged so that the second rotating member is always in a vertically descending state. If the second rotating member is pushed by the second buoy, the second rotating member can also quickly return to the initial position to form a locking fit.

[0016] Wherein, a limiting protrusion is provided on the second supporting leg, and the limiting protrusion limits the rotation of the second rotating member.

[0017] By setting a limiting protrusion, due to the effect of gravity, the limiting protrusion ensures that the initial position of the second rotating member is at an oblique angle, thereby ensuring the smoothness of the overall movement during use. In addition, the limiting protrusion has a positioning effect. Even if the second rotating member rotates, due to the effect of gravity, the second rotating member and the limiting protrusion are against each other, thus achieving a positioning effect.

[0018] Wherein, it also includes two adjusting parts, and a first water inlet and a second water inlet are arranged on the outer surface of the accommodating cavity, and the adjusting parts respectively adjust the size of the corresponding first water inlet and the second water inlet.

[0019] By setting the adjusting member, the flow rate of the water in and out can be controlled, thereby adjusting the flushing effect. Specifically, the opening size of the first water inlet can be adjusted to achieve a delay effect, so that the flushing time is prolonged and the flushing is cleaner.

[0020] Among them, an isolation plate is provided in the accommodating chamber, which divides the accommodating chamber into two chambers. The first buoy and the second buoy are located in the corresponding chambers. The first water inlet is located on the chamber where the first buoy is located and its height is lower than the top of the isolation plate; the second water inlet is located on the chamber where the second buoy is located and its height is higher than the top of the isolation plate.

[0021] The isolation plate is used so that in the initial state, the two floats move independently without interfering with each other, thereby ensuring the subsequent linkage effect. In addition, during use, the first float floats up first, ensuring that the locking part is always located above the hook part.

[0022] The device also includes a pressure relief valve, which is connected to the Venturi ejector.

[0023] A pressure relief valve is used to prevent excessive internal pressure from affecting the flushing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a schematic structural diagram of Embodiment 1 of the present invention;

[0025] Figure 2 is a structural schematic diagram of another angle of embodiment 1 of the present invention;

[0026] Figure 3 is a side view of embodiment 1 of the present invention;

[0027] Figure 4 is a schematic diagram of the structure of Embodiment 1 of the present invention without the housing;

[0028] Figure 5 It is a schematic diagram of a partial structure of Embodiment 1 of the present invention;

[0029] Figure 6 is a partial cross-sectional view of the first state in Example 1 of the present invention;

[0030] Figure 7 is a partial cross-sectional view of the second buoy top opening locking portion in Example 1 of the present invention;

[0031] Figure 8 is a partial cross-sectional view of the second state in Embodiment 1 of the present invention;

[0032] Fig. 9 is a schematic diagram of the structure when the first buoy and the second buoy are locked in Embodiment 1 of the present invention;

[0033] Fig.10 is a schematic structural diagram of the first rotating member in Embodiment 1 of the present invention;

[0034] Fig.11 is a schematic structural diagram of the second rotating member in Embodiment 1 of the present invention;

[0035] Fig.12 is a cross-sectional view of the water inlet pipe in Example 1 of the present invention;

[0036] Fig.13 is a cross-sectional view of the pressure relief valve and the first conduit in Example 1 of the present invention;

[0037] Fig.14 It is a schematic structural diagram of the shell in Example 1 of the present invention. DETAILED DESCRIPTION

[0038] Embodiment 1:

[0039] See attached Figure 1-14 As shown, a water inlet valve device includes a venturi ejector 1, a water inlet mechanism, a third buoy 2 and a buoy mechanism linked to the venturi ejector 1.

[0040] The water inlet mechanism includes a water inlet pipe 31, a water inlet valve 32 and a linkage 33. The water inlet pipe 31 is connected to the water inlet valve 32, and the linkage 33 controls the operation of the water inlet valve 32. The specific structure is that the third float 2 is sleeved on the water inlet pipe 31, and a connecting rod 21 is provided on the third float 2. The other end of the connecting rod 21 is linked with the linkage 33. As the water level in the water tank rises, the third float 2 moves upward, so that the connecting rod 21 moves upward synchronously, driving the linkage 33 to link, and realize the effect of controlling the water inlet valve 32. When the water in the water tank reaches the full water state, the linkage 33 controls the water inlet valve 32 to stop the water inlet. When the water in the water tank drops, the linkage 33 controls the water inlet valve 32 to work, forming an external water addition operation, that is, the external water enters the water tank through the water inlet valve. Here, the entire water inlet valve device is located in the water tank. This is a prior art, so the water tank is not drawn in the attached figure.

[0041] A buffer structure is provided at the top of the water inlet pipe 31, including a first spring 311 and a buffer 312. The top of the buffer 312 is used to close the opening size of the top of the water inlet pipe 31. Under normal conditions, the buffer 312 does not close the top opening of the water inlet pipe 31, that is, normal water inflow. When the water pressure of the water inlet pipe 31 increases, the water flow pressure will drive the buffer 312 to move upward in the axial direction, so that the buffer 312 partially blocks the top opening of the water inlet pipe 31, slowing down the amount of water flow, thereby achieving a buffering effect. When the water pressure returns to normal, the first spring 311 resets, driving the buffer 312 to return to the initial state, achieving the effect of buffering and decompression. Here, the first spring 311 is preferably set in a conical shape.

[0042] The venturi ejector 1 includes a first conduit 11, a second conduit 12 and a water outlet 13. One end of the first conduit 11 is connected to the water inlet valve 32, and the other end is provided with a nozzle 111. One end of the second conduit 12 is located on the injection trajectory of the nozzle 111, and the second conduit 12 is provided with a conical cover 121 on the side facing the nozzle 111. There is a gap between the conical cover 121 and the nozzle 111 and the first conduit 11. It should be noted here that the diameter of the nozzle 111 is smaller than the diameter of the second conduit 12. When the water tank is draining, the second conduit 12 is connected to the nozzle 111, and the high-pressure water flow generated by the nozzle 111 is ejected from the water outlet 13 along the second conduit 12. According to fluid mechanics, it can be known that high-speed water flow will generate negative pressure. Combined with the structure of the conical cover 121, the water inside the water tank located at the conical cover 121 will be ejected together with the high-speed water flow under the action of negative pressure, thereby increasing the water flow rate and ensuring the flushing effect. In addition, when water enters the water tank, the second conduit 12 and the nozzle 111 are in a cut-off state. At this time, the water ejected from the nozzle 111 will be stored inside the water tank.

[0043] The buoy mechanism includes a shell 4, in which a receiving chamber 41 is provided with an upward opening and a cavity 42 is provided with a downward opening. The cavity 42 is used in conjunction with the third buoy 2, and the first conduit 11 also passes through the cavity 42 and the third buoy 2, so that the third buoy 2 has higher stability during floating. Here, the cavity 42 and the third buoy 2 are adapted to each other, which has a certain guiding effect. A cover 411 is provided on the top of the receiving chamber 41, and the cover 411 closes the opening of the receiving chamber 41.

[0044] The accommodating chamber 41 is provided with a first float 5, a second float 6 for controlling the operation of the venturi ejector 1, and a limiting mechanism. The specific structure is that a partition plate 43 is provided in the accommodating chamber 41, and the partition plate 43 divides the accommodating chamber 41 into two chambers, namely a first chamber 44 and a second chamber 45. The first float 5 is located in the first chamber 44, and the second float 6 is located in the second chamber 45. A first water inlet 441 is provided on the first chamber 44, and a second water inlet 451 is provided on the second chamber 45. It should be noted here that the height of the first water inlet 441 is lower than the top of the partition plate 43; the height of the second water inlet 451 is higher than the top of the partition plate 43, that is, a high-low setting is formed. The top of the partition plate 43 is at one-half to two-thirds of the overall depth of the accommodating chamber 41, and the partition plate 43 is located at the center of the accommodating chamber 41.

[0045] The first water inlet 441 is small at the bottom and large at the top, and gradually increases from the bottom to the top. The second water inlet 451 is oppositely configured, large at the bottom and small at the top, and gradually decreases from the bottom to the top.

[0046] Furthermore, two adjusting members 7 are included, and the adjusting members 7 respectively adjust the size of the corresponding first water inlet 441 and the second water inlet 451. By setting the adjusting member 7, the flow rate of the inlet and outlet water can be controlled, thereby achieving the adjustment of the flushing effect. Here, the adjustment method of the adjusting member 7 and the two water inlets can be a snap-on adjustment, for example, a slide groove is provided on both sides of the first water inlet 441, and a plurality of snap-on protrusions are provided on the slide groove, and the adjusting member 7 moves on the slide groove, thereby achieving the adjustment of the opening size of the first water inlet 441. Here, the overall flushing time can be extended by reducing the opening size of the first water inlet 441. The specific principle is that when draining water, the opening of the first water inlet 441 becomes smaller, which slows down the descent speed of the first buoy 5. At the same time, due to the action of the first buoy 5, the descent speed of the second buoy 6 will also decrease, so that the shielding member 64 on the first water tank 63 slows down the time of shielding the nozzle 111. Since the nozzle 111 is not blocked, the venturi ejector 1 continues to work, which prolongs the flushing time and makes the flushing cleaner. If the opening size of the first water inlet 441 is increased, it can save water.

[0047] The first buoy 5 is hollowed downward, and one end of the hollow part is facing the bottom surface of the first chamber 44. A support rod 51 is arranged above the first buoy 5, and a U-shaped notch 511 is arranged on the support rod 51 facing the side of the second buoy 6. Here, the first buoy 5 moves along the axial direction of the accommodating chamber 41. Specifically, the cross section of the first buoy 5 is adapted to the cross section of the first chamber 44, so the side wall of the first chamber 44 plays a guiding role to ensure that the first buoy 5 moves along the axial direction of the accommodating chamber 41. Here, the first buoy 5 can also be sleeved on the guide column to extend the movement of the guide column. The second buoy 6 is also hollowed downward, and one end of the hollow part is facing the bottom surface of the second chamber 45. A hook portion 61 is arranged on the side of the second buoy 6 facing the first buoy 5. The second buoy 6 is provided with a linkage rod 62, which is arranged downward and passes through the second chamber 45 to be connected to the first water tank 63. The first water tank 63 is provided with a shielding member 64 which is linked to the first water tank 63. One end of the shielding member 64 is linked to the side of the first water tank 63, and the other end is located between the second conduit 12 and the nozzle 111, and is used to shield the nozzle 111. Here, the second buoy 6 also moves along the axial direction of the accommodating chamber 41. It should be noted that, since the linkage rod 62 is arranged to pass through the second chamber 45, there is a certain gap between the bottom surface of the second chamber 45 and the linkage rod 62. When draining water, the water in the second chamber 45 is discharged through this gap.

[0048] The limiting mechanism includes a first rotating member 8, which includes a first rotating shaft portion 81, a first support leg portion 82 and a second support leg portion 83. The first rotating shaft portion 81 is used to connect with the two side walls of the accommodating chamber 41 and is rotatably arranged relative to the accommodating chamber 41. Here, the first rotating shaft portion 81 is specifically located above the isolation plate 43 and is arranged parallel to the isolation plate 43. Here, a groove adapted to the first rotating shaft portion 81 may be provided on the accommodating chamber 41. The first support leg portion 82 is U-shaped, one end of which is connected to the first rotating shaft portion 81 and the other end is provided with a connecting column 821. The connecting column 821 is inserted into the U-shaped notch 511, so that the first support leg portion 82 is linked to the first buoy 5. The connecting column 821 is cylindrical.

[0049] The second leg portion 83 is provided with two connecting legs 831 and a second rotating member 9. One end of the two connecting legs 831 is connected to the first rotating shaft portion 81, and the other end is connected to the second rotating member 9, so that the second rotating member 9 is rotatably arranged relative to the two connecting legs 831. Further, in order to limit the rotation effect of the second rotating member 9, the two connecting legs 831 are provided with limiting protrusions 832, which limit the excessive rotation of the second rotating member 9 and play a position limiting effect of the second rotating member 9.

[0050] The second rotating member 9 is provided with a linkage part 91, a locking part 92 and a gravity part 93. The linkage part 91 is used to connect with the two connecting legs 831 to form a relative rotation effect. The locking part 92 is arranged in parallel with the first rotating shaft part 81. The locking part 92 is used to cooperate with the hook part 61 to achieve a locking effect. It should be noted here that the surface of the locking part 92 facing downward is an inclined surface, and the locking part 92 is located in the axial vertical direction of the hook part 61. The gravity part 93 is also arranged in parallel with the locking part 92, and the weight of the gravity part 93 is greater than the weight of any other position of the second rotating member 9. The gravity part 93 is located on an end away from the second supporting leg 83. It should be noted here that the gravity part 93 is arranged in the direction of the first buoy 5, and the limiting protrusion 832 is also located on the side facing the first buoy 5 to limit the gravity part 93 from turning downward. Under normal conditions, due to the arrangement of the gravity part 93 and the limiting protrusion 832, the second rotating member 9 always maintains a state of being against the limiting protrusion 832.

[0051] By adopting the setting of the first rotating member 8, in the first state, the locking part 92 does not cooperate with the hook part 61. Only in the second state, due to the rise of the first buoy 5, the force in the axial direction is converted into the radial rotational force of the first rotating member 8, so that the locking part 92 rotates, and the hook part 61 exceeds the height of the locking part 92. Due to the gravity effect of the gravity part 93, the locking part 92 quickly returns to the initial position. At this time, the locking part 92 cooperates with the hook part 61 to achieve the locking effect.

[0052] Furthermore, it also includes a pressure relief valve 10, which is connected to the first conduit 11. The pressure relief valve 10 is set to prevent excessive internal pressure from affecting the flushing effect. The pressure adjustment setting is performed by controlling the pressure relief valve 10. Its specific structure is that a second spring 101 and a plug 102 are provided in the pressure relief valve 10. Under normal conditions, the plug 102 closes the connection between the pressure relief valve and the first conduit 11. When the pressure inside the first conduit 11 is too high, it will push the plug 102 to move, and part of the pressure can be discharged through the pressure relief valve 10. At this time, the second spring 101 is compressed. When the air pressure returns to normal, the second spring 101 is reset, so that the plug 102 closes the connection between the pressure relief valve 10 and the first conduit 11.

[0053] In the first state, that is, when there is no water or water is insufficient in the water tank, the first buoy 5 and the second buoy 6 are both fixed in the corresponding chambers and do not move, and the locking portion 92 and the hook portion 61 are not locked together. At this time, the shielding member 64 on the first water tank 63 shields the nozzle 111, so that the nozzle 111 is isolated from the second conduit 12, and the venturi ejector 1 does not work.

[0054] When water starts to be added to the water tank, the water inlet valve 32 is opened, and the external water enters the water tank through the water inlet pipe 31 and the first conduit 11. Since the nozzle 111 is blocked by the shielding member 64, the water will remain in the water tank. As the water level slowly rises, when the water level exceeds the first water inlet 441, the water will enter the first chamber 44, and the first buoy 5 will move upward along the axial direction of the inner wall of the first chamber 44. At this time, the water will also enter the second chamber 45 from the bottom surface of the second chamber 45, and the second buoy 6 will also move upward. It should be noted here that the buoyancy speed of the first buoy 5 exceeds the buoyancy speed of the second buoy 6, thereby ensuring that the locking portion 92 is always located above the hook portion 61. Water continues to enter the two chambers. When the water level exceeds the second water inlet 451, the water in the second chamber 45 can enter the first chamber 44 through the isolation plate 43 to ensure the equality of the overall water level.

[0055] When the water in the water tank is about to be filled, the first rotating member 8 moves axially upward with the first buoy 5, and the first rotating member 8 rotates. The second rotating member 9 does not rotate due to the action of the gravity part 93. The second buoy 6 moves axially upward, which will push open the locking part 92 on the second rotating member 9, so that the hook part 61 exceeds the locking part 92. At this time, due to the action of the gravity part 93, the second rotating member 9 is quickly reset, and the locking cooperation between the locking part 92 and the hook part 61 is achieved. It should be noted here that as the second buoy 6 moves axially upward, the first water tank 63 also moves axially upward. When the second buoy 6 and the first buoy 5 are locked, the third buoy 2 also reaches the preset value, so that the water inlet valve 32 stops working, and the shielding member 64 on the first water tank 63 moves, and the shielding effect on the nozzle 111 is released. At this time, the drainage button is pressed, and the venturi ejector 1 works to achieve the drainage effect.

[0056] When draining, the water level in the water tank drops rapidly, and the floats in the two chambers also drop accordingly. During the descending process of the first float 5, the locking portion 92 and the hook portion 61 are unlocked, and at the same time, the first water tank 63 moves downward, driving the shielding member 64 to cover the nozzle 111 again. When the water level in the water tank drops, the third float 2 drives the water inlet valve 32 to work and start the water filling operation. Since the drainage speed is greater than the water inlet speed, when the shielding member 64 covers the nozzle 111 again, the water storage operation starts again.

Claims

1. A water inlet valve device, characterized in that: It includes a venturi ejector and a float mechanism linked with the venturi ejector, the float mechanism is provided with a receiving chamber, a first float and a second float for controlling the operation of the venturi ejector are provided in the receiving chamber, the first float and the second float both move along the axial direction of the receiving chamber, in the first state, the bottom surface of the first float and the bottom surface of the second float both fit with the bottom surface of the receiving chamber; in the second state, the first float rises to a preset height to limit the second float from continuing to move upward; it also includes a limiting mechanism, one end of the limiting mechanism is linked with the first float, and the other end is located on the movement trajectory of the second float to limit its continued movement; it also includes two adjusting members, a first water inlet and a second water inlet are provided on the outer surface of the receiving chamber, and the adjusting members respectively adjust the sizes of the corresponding first water inlet and the second water inlet; an isolation plate is provided in the receiving chamber, the isolation plate divides the receiving chamber into two chambers, the first float and the second float are located in the corresponding chambers, the first water inlet is located on the chamber where the first float is located and the height is lower than the top of the isolation plate; the second water inlet is located on the chamber where the second float is located and the height is higher than the top of the isolation plate.

2. A water inlet valve device according to claim 1, characterized in that: The limiting mechanism includes a first rotating member, which is fixed in the accommodating cavity and is rotatably arranged relative to the accommodating cavity. One end of the first rotating member is linked to the first buoy, and the other end is provided with a locking part. The second buoy is provided with a hook part. When the second buoy rises to a preset height, the hook part cooperates with the locking part to lock.

3. A water inlet valve device as claimed in claim 2, characterized in that: The first rotating member is provided with a first support leg and a second support leg. The first buoy is linked with the first support leg and drives the first rotating member to rotate. The second support leg cooperates with the second buoy.

4. A water inlet valve device as claimed in claim 3, characterized in that: A second rotating member is arranged on the second supporting leg, the second rotating member is rotatably arranged relative to the second supporting leg, and the locking portion is located on the second rotating member.

5. A water inlet valve device as claimed in claim 4, characterized in that: The second rotating member is provided with a gravity portion, and the gravity portion is located at an end away from the second supporting leg.

6. A water inlet valve device according to claim 4 or 5, characterized in that: A limiting protrusion is provided on the second supporting leg, and the limiting protrusion limits the rotation of the second rotating member.

7. A water inlet valve device according to claim 1, characterized in that: The utility model also comprises a pressure relief valve, which is connected with the venturi ejector.

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