Pressure type flushing system and delayed flushing structure thereof

Abstract

The invention discloses a pressure type flushing system and a time-delay flushing structure thereof. The time-delay flushing is realized. The time-delay flushing structure comprises a drainage body, a membrane and a time-delay assembly. A drainage cavity is formed in the drainage main body, a first water inlet, a second water inlet and a water outlet are formed in the drainage cavity, and the first water inlet and the second water inlet are communicated with the two independent water storage cavities respectively; the diaphragm is arranged in the drainage cavity and separates the first water inlet from the second water inlet and the water outlet; the delay assembly is arranged in the drainage cavity and provides elastic force acting on the diaphragm; through the time delay assembly, when the two water storage cavities communicated with the first water inlet and the second water inlet do not discharge water, the second water inlet and the water outlet are separated by the diaphragm; when the water storage cavity communicated with the first water inlet begins to drain water, the pressure of the side, close to the first water inlet, of the diaphragm is reduced, the diaphragm overcomes the elastic force of the delay assembly under the action of the pressure difference of the two sides so that the second water inlet can be communicated with the water outlet, and the water storage cavity communicated with the second water inlet drains water through the water outlet.

Description

Technical Field

[0001] The invention relates to the technical field of pressure-type flushing systems, and in particular to a pressure-type flushing system and a delayed flushing structure thereof. Background Art

[0002] A pressure flushing system is a device that uses pressure to quickly drain water to flush the toilet. It usually includes a pressure bag or a pressure water tank for storing water, and generates a strong flushing force when the compressed gas is released to achieve efficient flushing. It is especially suitable for areas with large fluctuations in tap water pressure or more low water pressure periods, thereby ensuring that a good flushing effect can be achieved even under low water pressure conditions.

[0003] In the prior art, the drainage of the pressure flushing system is divided into two paths, the upper path forms the wash water path, and the lower path forms the main flush (also called bottom flush) water path. When the user presses the drainage button, the wash water path and the main flush water path discharge water almost at the same time. When the wash water flows down to the toilet sewage outlet, the water flow potential energy gradually slows down. At the same time, the main flush water flow potential energy also slows down as the pressure is released. Although the amount of water gathered at the toilet sewage outlet is large, the energy is weak, resulting in weak siphoning, which is not conducive to flushing dirt, and the flushing effect is not ideal. Summary of the invention

[0004] The purpose of the present invention is to provide a pressure-type flushing system and a delayed flushing structure thereof, so as to solve the problems existing in the prior art, realize the delayed flushing of two independent waterways, and improve the flushing effect.

[0005] In order to achieve the above object, the solution of the present invention is: A time-delay flushing structure comprises a drainage body, a diaphragm and a time-delay assembly; a drainage cavity is arranged in the drainage body, the drainage cavity is provided with a first water inlet, a second water inlet and a water outlet, the first water inlet and the second water inlet are respectively connected to two independent water storage cavities; the diaphragm is arranged in the drainage cavity to separate the first water inlet from the second water inlet and the water outlet; the time-delay assembly is arranged in the drainage cavity and provides elastic force acting on the diaphragm; through the time-delay assembly: when the two water storage cavities connected with the first water inlet and the second water inlet do not drain water, the diaphragm separates the second water inlet from the water outlet; when the water storage cavity connected with the first water inlet starts to drain water, the pressure on the side of the diaphragm close to the first water inlet is reduced, so that the diaphragm overcomes the elastic force of the time-delay assembly under the action of the pressure difference on both sides and connects the second water inlet with the water outlet, and the water storage cavity connected with the second water inlet is drained through the second water inlet and the water outlet.

[0006] The second water inlet extends into the drainage cavity to form a water inlet passage, and the water inlet passage is connected to the water outlet. The diaphragm movably seals the water outlet end of the water inlet passage to separate the second water inlet from the water outlet. The cross-sectional area of ​​the drainage cavity is larger than the cross-sectional area of ​​the water inlet passage.

[0007] Preferably, the drainage body includes a first shell, a second shell and a pipe fitting of a separate design, the drainage cavity is arranged between the first shell and the second shell, the first shell is provided with the first water inlet, the second shell is provided with the water outlet, the pipe fitting is provided with the water inlet passage, and the pipe fitting penetrates into the second shell.

[0008] Preferably, the second shell is provided with a slot for the first shell to be plugged into and matched with, the slot has a step surface, the periphery of the diaphragm is matched on the step surface, and the first shell is inserted into the slot and presses the periphery of the diaphragm.

[0009] The delay component includes a movable plate and a spring; a fixed seat opposite to the second water inlet is arranged in the drainage cavity; the movable plate is attached to the side of the diaphragm close to the first water inlet; the spring is arranged between the fixed seat and the movable plate.

[0010] Preferably, a guide rod is vertically arranged on a side of the movable plate facing the fixed seat, and the guide rod is movably arranged in the fixed seat.

[0011] Preferably, a positioning groove is provided on a side of the fixing seat facing the movable plate, the spring is sleeved on the guide rod and one end of the spring is arranged in the positioning groove.

[0012] Preferably, the movable plate is made of metal, and the fixing seat is provided with a magnet for magnetically fixing the movable plate.

[0013] The second solution of the present invention is: A pressure flushing system, characterized in that it includes a delayed flushing structure as described in any one of claims 1 to 8, as well as a water storage container, a brush ring water outlet pipe, a main flushing water outlet pipe and an opening valve; the water storage container has two independent water storage chambers, and the two independent water storage chambers are respectively connected to the first water inlet and the second water inlet; the water outlet end of the water storage chamber connected to the first water inlet is connected to the brush ring water outlet pipe and is controlled by the opening valve, and the water outlet is connected to the main flushing water outlet pipe.

[0014] The water storage container is an independent first pressure bag and a second pressure bag; the side wall of the first pressure bag is connected to the first water inlet, the water outlet of the first pressure bag is connected to the brush ring water outlet pipe and is controlled by the opening valve; the water outlet of the second pressure bag is connected to the second water inlet.

[0015] Preferably, the water inlet ends of the first pressure bag and the second pressure bag are both connected to a three-way joint, and a pressure-stabilizing valve is provided at the water inlet end of the three-way joint.

[0016] Preferably, one-way valves are provided in the ends of the three-way joint connected to the first pressure bag and the second pressure bag.

[0017] Preferably, a pressure limiting hole or a throttle plate is provided in the end of the three-way joint connected to the first pressure bag and the second pressure bag.

[0018] After adopting the above technical solution, the present invention has the following technical effects: After the delayed flushing structure of the present invention is applied to a pressure-type flushing system, the first water inlet and the second water inlet are respectively connected to independent water storage chambers, and the water storage chamber connected to the first water inlet is also connected to the circle washing water channel and is controlled by the opening valve of the pressure-type flushing system. Finally, the delayed drainage function of "washing the circle first and then the main flushing" can be realized, thereby improving the flushing effect of the pressure-type flushing system; while realizing delayed flushing, the present invention can also reduce noise, improve user experience, and be more energy-saving and environmentally friendly, thereby improving energy efficiency; the present invention can realize delayed control through only one control switch, and the whole structure is simple and the cost is low; the design that the first water inlet and the second water inlet are connected to two independent water storage chambers also makes the drainage volume of the two flushing functions more controllable and can be freely designed. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A three-dimensional diagram of a specific embodiment of the present invention; Figure 2 This is a schematic diagram of the structure of the water inlet part of a specific embodiment of the present invention; Figure 3 It is a structural schematic diagram of the drainage part of a specific embodiment of the present invention; Figure 4 The drainage process of a specific embodiment of the present invention is shown in FIG. Figure 1 ; Figure 5 The drainage process of a specific embodiment of the present invention is shown in FIG. Figure 2 ; Description of Figure Numbers: 1-drainage body; 1a-first shell; 1b-second shell; 1c-pipe fitting; 11-drainage chamber; 12-first water inlet; 13-second water inlet; 14-water outlet; 15-water inlet passage; 16-slot; 161-step surface; 17-fixed seat; 171-positioning groove; 2-diaphragm; 3-movable plate; 31-guide rod; 4-spring; 5-magnet; 6-brush ring water outlet pipe; 7-main flushing water outlet pipe; 8-opening valve; 9-first pressure bag; 10-second pressure bag; 20-three-way connector; 30-pressure regulating valve; 40-check valve; 50-pressure limiting hole; 60-throttle plate. DETAILED DESCRIPTION

[0020] In order to further explain the technical solution of the present invention, the present invention is described in detail below through specific embodiments.

[0021] Research shows that if the water discharge time of the wash ring and main flush of the pressure flushing system can be changed, specifically, the water discharge time of the main flushing waterway is made later than that of the wash ring waterway, when the wash ring water is collected downward to the sewage outlet of the toilet bowl, the main flushing waterway starts to discharge water, and a strong siphon flow can be formed by means of the strong pressure potential energy accompanying the water in the main flushing waterway when it is just released, thereby quickly and efficiently flushing away the dirt. Therefore, the present invention designs a delayed flushing structure for the pressure flushing system, the purpose of which is to realize the drainage function of washing the ring first and then the main flushing, so that the water discharge of the two has a time difference, and the above-mentioned purpose and effect are achieved.

[0022] refer to Figure 1-5 As shown, the present invention discloses a delayed flushing structure, including a drainage body 1, a diaphragm 2 and a delay component; A drainage cavity 11 is provided in the drainage body 1. The drainage cavity 11 is provided with a first water inlet 12, a second water inlet 13 and a water outlet 14. The first water inlet 12 and the second water inlet 13 are respectively connected to two independent water storage cavities. The diaphragm 2 is arranged in the drainage cavity 11, separating the first water inlet 12 from the second water inlet 13 and the water outlet 14, that is, the first water inlet 12 is located on one side of the diaphragm 2 (the left side in the figure), and the second water inlet 13 and the water outlet 14 are located on the other side of the diaphragm 2 (the right side in the figure); The delay component is arranged in the drainage cavity 11 and provides elastic force acting on the diaphragm 2; Through the delay component: when the two water storage chambers connected to the first water inlet 12 and the second water inlet 13 are not drained, the diaphragm 2 separates the second water inlet 13 from the water outlet 14; when the water storage chamber connected to the first water inlet 12 starts to drain, the pressure on the side of the diaphragm 2 close to the first water inlet 12 decreases, so that the diaphragm 2 overcomes the elastic force of the delay component under the action of the pressure difference on both sides to connect the second water inlet 13 with the water outlet 14, and the water storage chamber connected to the second water inlet 13 is drained through the second water inlet 13 and the water outlet 14.

[0023] Through the above scheme, after the delayed flushing structure of the present invention is applied to the pressure flushing system, the first water inlet 12 and the second water inlet 13 are respectively connected to independent water storage chambers, and the water storage chamber connected to the first water inlet 12 is also connected to the wash water circuit and is controlled by the opening valve 8 of the pressure flushing system. The first water inlet 12 serves to connect the water storage chamber with the drainage chamber 11 on the left side of the diaphragm 2, so that the pressure on the left side of the diaphragm 2 is equal to the pressure in the water storage chamber connected to the first water inlet 12, and the water outlet 14 of the drainage body 1 is connected to the main flushing water circuit; see Figure 4 When the system does not drain water or the user presses the open valve in the initial stage of the wash waterway drainage, the pressure on the left side of the diaphragm 2 plus the elastic force of the delay component is greater than the pressure on the right side of the diaphragm 2, and the diaphragm 2 is pressed to the right, and the second water inlet 13 and the water outlet 14 are not connected, that is, the main flushing waterway does not drain water; see Figure 5 When the wash water circuit continues to drain, the pressure in the water storage chamber connected to the first water inlet 12 continues to drop, so that the pressure on the left side of the diaphragm 2 plus the elastic force of the delay component is less than the pressure on the right side of the diaphragm 2, and the diaphragm 2 begins to move to the left, and the second water inlet 13 and the water outlet 14 begin to connect, that is, the main flushing water circuit begins to drain, realizing the delayed drainage function of "washing the circle first and then the main flushing", and improving the flushing effect of the pressure flushing system; and when the system finishes draining, both sides of the diaphragm 2 begin to store water, and the pressure on the left side of the diaphragm 2 plus the delay component is restored. When the elastic force is greater than the pressure on the right side of the diaphragm 2, the diaphragm 2 is reset and the main flushing water path is closed for drainage. The present invention can achieve delayed flushing while reducing noise, improving user experience, and being more energy-saving and environmentally friendly, thereby improving energy efficiency. The present invention can achieve delayed control through only one control switch (i.e., the opening valve 8 of the pressure-type flushing system), and the entire structure is simple and low in cost. The design of the first water inlet 12 and the second water inlet 13 being connected to two independent water storage chambers also makes the drainage volume of the two flushing functions more controllable and can be freely designed.

[0024] The specific implementation of the above-mentioned delayed flushing structure is shown below.

[0025] The above-mentioned second water inlet 13 extends into the drainage chamber 11 to form a water inlet passage 15, and the water inlet passage 15 is connected with the water outlet 14. The diaphragm 2 movably seals the water outlet end of the water inlet passage 15 to achieve separation of the second water inlet 13 and the water outlet 14; the cross-sectional area of ​​the drainage chamber 11 is larger than the cross-sectional area of ​​the water inlet passage 15, ensuring that when the water storage chambers connected to the left and right sides of the diaphragm 2 are in a state of being full of water, the pressure on the left side of the diaphragm 2 is greater than that on the right side.

[0026] Furthermore, the drainage body 1 includes a first shell 1a, a second shell 1b and a pipe 1c of separate design, the drainage cavity 11 is provided between the first shell 1a and the second shell 1b, the first shell 1a is provided with the first water inlet 12, the second shell 1b is provided with the water outlet 14, the pipe 1c is provided with the water inlet passage 15, and the pipe 1c penetrates the second shell 1b. The drainage body 1 is designed to be separate into multiple parts, so that the parts can be demolded to form various cavities and waterways.

[0027] Secondly, the above-mentioned second shell 1b is provided with a slot 16 for plugging and mating with the first shell 1a, and the slot 16 has a step surface 161. The periphery of the diaphragm 2 is matched on the step surface 161. The first shell 1a is inserted into the slot 16 and presses the periphery of the diaphragm 2, so that the periphery of the diaphragm 2 is relatively fixed to the inner wall of the drainage cavity 11.

[0028] The delay assembly includes a movable plate 3 and a spring 4; a fixed seat 17 is provided in the drainage cavity 11, which is opposite to the second water inlet 13 (i.e., the water outlet end of the water inlet passage 15); the movable plate 3 is attached to the side of the diaphragm 2 close to the first water inlet 12; the spring 4 is provided between the fixed seat 17 and the movable plate 3. By providing the movable plate 3, the shape of the inner part of the periphery of the diaphragm 2 can be maintained, so that the second water inlet 13 and the water outlet 14 can be more stably separated; the spring 4 provides the elastic force required by the delay assembly.

[0029] Furthermore, a guide rod 31 is vertically arranged on one side of the movable plate 3 facing the fixed seat 17, and the guide rod 31 is movably penetrated through the fixed seat 17 to guide the movable plate 3 when it moves, and ensure that the movable plate 3 always moves along the axial direction of the second water inlet 13, so that the partition effect of the diaphragm 2 is more stable.

[0030] Secondly, a positioning groove 171 is provided on a side of the fixing seat 17 facing the movable plate 3 , and the spring 4 is sleeved on the guide rod 31 and one end of the spring 4 is arranged in the positioning groove 171 to improve the position stability of the spring 4 .

[0031] At the same time, the movable plate 3 is made of metal, and a magnet 5 for magnetically fixing the movable plate 3 is provided on the fixing seat 17. After the movable plate 3 moves with the middle part of the diaphragm 2, the magnet 5 can adsorb the movable plate 3 on the fixing seat 17 and compress the spring 4, so as to keep the second water inlet 13 connected with the water outlet 14; by controlling the magnetic force of the magnet 5 (i.e., replacing the magnet 5 with different magnetic forces), the drainage time of the water outlet 14 can be controlled. In this embodiment, the metal material is stainless steel, which can ensure that the movable plate 3 is immersed in water for a long time without rusting; the magnet 5 is a ring magnet, which provides uniform magnetic force to the movable plate 3.

[0032] The present invention also discloses a pressure-type flushing system, comprising the above-mentioned delayed flushing structure, as well as a water storage container, a brush ring water outlet pipe 6, a main flushing water outlet pipe 7 and an opening valve 8; the water storage container has two independent water storage chambers, and the two independent water storage chambers are respectively connected to a first water inlet 12 and a second water inlet 13; the water outlet end of the water storage chamber connected to the first water inlet 12 is connected to the brush ring water outlet pipe 6 and is controlled by the opening valve 8, and the water outlet 14 is connected to the main flushing water outlet pipe 7.

[0033] The specific implementation of the above-mentioned pressure flushing system is shown below.

[0034] The water storage container is an independent first pressure bag 9 and a second pressure bag 10; the side wall of the first pressure bag 9 is connected to the first water inlet 12, the water outlet of the first pressure bag 9 is connected to the brush ring water outlet pipe 6 and is controlled by the opening valve 8; the water outlet of the second pressure bag 10 is connected to the second water inlet 13. The water storage container is independently designed as two pressure bags, which makes it easier to install the pressure flushing system in the toilet. Of course, the water storage container can also be an integrated part, with two independent water storage chambers separated inside.

[0035] Furthermore, the water inlet ends of the first pressure bag 9 and the second pressure bag 10 are both connected to the three-way joint 20, and the water inlet end of the three-way joint 20 is provided with a pressure regulating valve 30, which can control the water pressure entering the entire pressure flushing system and improve the stability and safety of the system.

[0036] Secondly, a one-way valve 40 is provided in the end where the three-way connector 20 is connected to the first pressure bag 9 and the second pressure bag 10 , so as to prevent the water in the pressure bag 9 from flowing back to the pressure regulating valve 30 .

[0037] At the same time, the ends of the three-way joint 20 connected to the first pressure bag 9 and the second pressure bag 10 are both provided with a pressure limiting hole 50 or a throttle plate 60 .

[0038] The above embodiments and drawings do not limit the product form and style of the present invention. Any appropriate changes or modifications made by ordinary technicians in the relevant technical field should be deemed to be within the patent scope of the present invention.

Claims

1. A delayed flushing structure, characterized in that: It includes a drainage body, a diaphragm and a delay component; A drainage cavity is provided in the drainage body, and the drainage cavity is provided with a first water inlet, a second water inlet and a water outlet, and the first water inlet and the second water inlet are respectively connected to two independent water storage cavities; The diaphragm is arranged in the drainage cavity to separate the first water inlet from the second water inlet and the water outlet; The delay component is arranged in the drainage cavity and provides elastic force acting on the diaphragm; Through the delay component: when the two water storage chambers connected to the first water inlet and the second water inlet are not draining, the diaphragm separates the second water inlet from the water outlet; when the water storage chamber connected to the first water inlet starts to drain, the pressure on the side of the diaphragm close to the first water inlet decreases, so that the diaphragm overcomes the elastic force of the delay component under the action of the pressure difference on both sides to connect the second water inlet with the water outlet, and the water storage chamber connected to the second water inlet drains through the second water inlet and the water outlet.

2. The delayed flushing structure according to claim 1, characterized in that: The second water inlet extends into the drainage cavity to form a water inlet passage, and the water inlet passage is connected to the water outlet. The diaphragm movably seals the water outlet end of the water inlet passage to separate the second water inlet from the water outlet. The cross-sectional area of ​​the drainage cavity is larger than the cross-sectional area of ​​the water inlet passage.

3. The delayed flushing structure according to claim 2, characterized in that: The drainage body includes a first shell, a second shell and a pipe fitting of a split design, the drainage cavity is arranged between the first shell and the second shell, the first shell is arranged with the first water inlet, the second shell is arranged with the water outlet, the pipe fitting is arranged with the water inlet passage, and the pipe fitting penetrates into the second shell.

4. The delayed flushing structure according to claim 3, characterized in that: The second shell is provided with a slot for the first shell to be plugged and matched, the slot has a step surface, the periphery of the diaphragm is matched on the step surface, and the first shell is inserted into the slot and presses the periphery of the diaphragm.

5. The delayed flushing structure according to claim 1, characterized in that: The delay component includes a movable plate and a spring; a fixed seat opposite to the second water inlet is arranged in the drainage cavity; the movable plate is attached to the side of the diaphragm close to the first water inlet; the spring is arranged between the fixed seat and the movable plate.

6. The delayed flushing structure according to claim 5, characterized in that: A guide rod is vertically arranged on one side of the movable plate facing the fixed seat, and the guide rod is movably arranged through the fixed seat.

7. The delayed flushing structure according to claim 6, characterized in that: A positioning groove is arranged on a side of the fixing seat facing the movable plate, the spring is sleeved on the guide rod and one end of the spring is arranged in the positioning groove.

8. The delayed flushing structure according to claim 5, characterized in that: The movable plate is made of metal, and the fixing seat is provided with a magnet for magnetically fixing the movable plate.

9. A pressure flushing system, characterized in that It comprises a delayed flushing structure as described in any one of claims 1 to 8, as well as a water storage container, a brush ring water outlet pipe, a main flushing water outlet pipe and an opening valve; the water storage container has two independent water storage chambers, and the two independent water storage chambers are respectively connected to the first water inlet and the second water inlet; the water outlet end of the water storage chamber connected to the first water inlet is connected to the brush ring water outlet pipe and is controlled by the opening valve, and the water outlet is connected to the main flushing water outlet pipe.

10. The pressure flushing system according to claim 9, characterized in that: The water storage container is an independent first pressure bag and a second pressure bag; the side wall of the first pressure bag is connected to the first water inlet, the water outlet of the first pressure bag is connected to the brush ring water outlet pipe and is controlled by the opening valve; the water outlet of the second pressure bag is connected to the second water inlet.

11. The delayed flushing structure according to claim 10, characterized in that: The water inlet ends of the first pressure bag and the second pressure bag are both connected to a three-way joint, and a pressure-stabilizing valve is provided at the water inlet end of the three-way joint.

12. The delayed flushing structure according to claim 11, characterized in that: A one-way valve is provided in the end of the three-way joint connected to the first pressure bag and the second pressure bag; The ends of the three-way joint connected to the first pressure bag and the second pressure bag are both provided with a pressure limiting hole or a throttling plate.

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