Current limiter

Abstract

The utility model relates to the technical field of closestools, and provides a flow limiter which comprises a shell, a water inlet pipe, a water outlet pipe, a water inlet pipe and a water outlet pipe. The interior of the filter cartridge is hollow, the filter cartridge is arranged in the cavity, the pipe diameter of the filter cartridge is gradually reduced from the water inlet end to the water outlet end, and the filter cartridge and the inner wall of the cavity form a water inlet channel; the fixing plate is arranged in the cavity and located outside the side, away from the water inlet end, of the filter cartridge, and a water inlet hole is formed in the fixing plate; the water inlet hole is respectively communicated with the water outlet end and the water inlet channel; the flow limiting baffle ring is arranged between the fixed plate and the filter cartridge in a sliding manner and is used for shielding the water inlet hole. By means of the technical scheme, the problem that in the prior art, when water enters a closestool, the water amount cannot be controlled due to water pressure changes is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of toilets, and in particular to a flow limiter. Background Art

[0002] The toilet is a necessity in daily life, which includes a toilet body and a toilet water tank connected to the toilet body. The currently common toilet water tank is a bottom water inlet structure. A water inlet pipe is installed in the water tank, and a water inlet switch controlled by a buoyancy ball is installed on the water inlet pipe. After a certain amount of water is injected into the water tank, the buoyancy ball floats up and closes the water inlet switch by utilizing a lever driving mechanism, thereby preventing the water tank from overflowing. A water outlet connected to the toilet body is also provided at the bottom of the water tank, and a manual drain switch is installed on the water outlet. The flushing operation can be completed by operating the manual drain switch. After flushing the toilet, the water tank will automatically refill with water again.

[0003] When the existing toilet is inletting water and the water tank is filled with water, as the water pressure increases, the water flow rate will become larger and larger, especially during the water inlet operation. When the water volume is large, suddenly stopping the water inlet will also cause damage to the water inlet system of the toilet. In particular, the water inlet systems of existing toilet water tanks are mostly made of plastic, which is very easy to cause damage.

[0004] Therefore, there is a need in the art for a flow limiter to solve the above problems. Utility Model Content

[0005] The utility model provides a flow limiter, which solves the problem in the related art that the water volume cannot be controlled due to the change of water pressure when the toilet is filled with water.

[0006] The technical solution of the utility model is as follows:

[0007] Current limiters, including:

[0008] The shell has a cavity inside, and the cavity has a water inlet end and a water outlet end, and the water inlet end is located below the water outlet end;

[0009] A filter cartridge, which is hollow inside, is disposed in the cavity, a diameter of which gradually decreases from the water inlet end to the water outlet end, and the filter cartridge and the inner wall of the cavity form a water inlet channel;

[0010] A fixing plate is arranged in the cavity and abuts against the inner wall of the cavity, and is located outside the filter cartridge on a side away from the water inlet end, and a water inlet hole is opened on the fixing plate; the water inlet hole is respectively connected to the water outlet end and the water inlet channel;

[0011] A flow-limiting baffle ring is slidably disposed between the fixing plate and the filter cartridge, and the flow-limiting baffle ring is used to cover the water inlet hole.

[0012] Preferably, a water trough is formed between the fixing plate and the filter cartridge, the water trough is annular, the water trough is concentrically arranged with the flow limiting baffle ring, and the flow limiting baffle ring is slidably disposed in the water trough along the axial direction of the water trough;

[0013] The water tank and the interior of the cavity form a water flow channel, and the water flow channel is communicated with the water inlet hole and the water inlet channel.

[0014] Preferably, it also includes:

[0015] A connecting column is arranged between the fixing plate and the filter cartridge, wherein the diameter of the connecting column is smaller than the diameter of the fixing plate, and the diameter of the connecting column is also smaller than the minimum end diameter of the filter cartridge;

[0016] The side wall of the connecting column cooperates with the end surface of the filter cartridge and the end surface of the fixing plate to form the water tank; the connecting column, the filter cartridge and the fixing plate are an integrated structure.

[0017] Preferably, the fixing plate is provided with a mounting groove on the circumference, and further comprises:

[0018] A sealing ring is arranged in the installation groove, and the sealing ring is sealed and connected to the inner wall of the cavity.

[0019] Preferably, the shell further comprises a water outlet section, the water outlet section is arranged at a side away from the fixing plate, and the water outlet section is communicated with the water outlet end.

[0020] Preferably, the fixing plate is provided with a mounting hole at one end away from the filter cartridge, and further comprises:

[0021] A bracket is arranged in the cavity, the bracket is used to support the fixing plate, the bracket forms a water outlet gap between the fixing plate and the water outlet end, and the water outlet gap is connected with the water outlet section and the water inlet hole.

[0022] Preferably, the support comprises:

[0023] A connecting rod, arranged in the mounting hole;

[0024] There are no less than two supporting legs, one end of each supporting leg is fixedly connected to the connecting rod, and the other end of each supporting leg is fixedly connected to the inner wall of the cavity.

[0025] Preferably, it also includes:

[0026] An anti-backflow gasket is slidably sleeved on the connecting rod and is located on a side of the fixing plate close to the water outlet end, and the anti-backflow gasket is used to cover the water inlet hole.

[0027] Preferably, it also includes:

[0028] A cushion block is arranged on the side wall of the filter cartridge and is located on the outer side wall of the smallest diameter section of the filter cartridge. The cushion block abuts against the inside of the cavity and is used to limit the position of the filter cartridge.

[0029] The beneficial effects of the utility model are:

[0030] In the utility model, the water volume is limited by adding a flow limiter. The filter cartridge can filter out impurities in the water to prevent the impurities from affecting the flow limiting effect. Under the action of water pressure, the flow limiting baffle ring will slide between the filter cartridge and the fixed plate to block the water inlet hole. The flow limiting baffle ring reduces the blocking area of ​​the water inlet hole, thereby achieving a flow limiting effect on the water flow under higher water pressure. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The preferred implementation modes will be described below in a clear and understandable manner with reference to the accompanying drawings to further illustrate the above-mentioned characteristics, technical features, advantages and implementation methods of the present utility model.

[0032] Figure 1 This is a schematic diagram of the structure of the current limiter of the utility model;

[0033] Figure 2 This is the front view of the current limiter of the utility model;

[0034] Figure 3 for Figure 2 Sectional view at AA;

[0035] Figure 4 This is a schematic diagram of the internal structure of the current limiter of the utility model;

[0036] Figure 5 This is a schematic diagram of the water inlet structure of the current limiter of the utility model;

[0037] Figure 6 This is a schematic diagram of the position relationship between the filter cartridge and the fixing plate of the flow restrictor of the utility model.

[0038] In the figure: 1. outer shell; 101. cavity; 102. water inlet end; 103. water outlet end; 2. filter cartridge; 3. water inlet channel; 4. flow limiting baffle ring; 5. sealing ring; 6. anti-backflow gasket; 7. bracket; 701. support leg; 702. connecting rod; 8. water outlet section; 9. mounting hole; 10. mounting groove; 11. fixing plate; 1101. water inlet hole; 12. connecting column; 13. cushion block; 14. vertical rod; 15. water tank; 16. water outlet gap. DETAILED DESCRIPTION

[0039] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the specific implementation methods of the utility model will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work.

[0040] In order to simplify the drawings, only the parts related to the utility model are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically shown, or only one of them is marked. In this article, "one" not only means "only one", but also means "more than one", and "several" includes "two" and "more than two".

[0041] In this article, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0042] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0043] Example 1

[0044] Reference Figure 1 to Figure 6 , which is the first embodiment of the utility model, proposes a flow limiter, which is installed in a toilet water tank, including: a shell 1, which has a cavity 101 inside, and the cavity 101 has a water inlet end 102 and a water outlet end 103, and the water inlet end 102 is arranged below the water outlet end 103; a filter cartridge 2, which is hollow inside, and the filter cartridge 2 is arranged in the cavity 101, and the pipe diameter of the filter cartridge 2 gradually decreases from the water inlet end 102 to the water outlet end 103, and the filter cartridge 2 and the inner wall of the cavity 101 form a water inlet channel 3; a fixed plate 11, which is arranged in the cavity 101 and is located outside the side of the filter cartridge 2 away from the water inlet end 102, and a water inlet hole 1101 is opened on the fixed plate 11; the water inlet hole 1101 is connected with the water outlet end 103 and the water inlet channel 3 respectively; a flow limiting baffle ring 4, which is slidably arranged between the fixed plate 11 and the filter cartridge 2, and the flow limiting baffle ring 4 is used to block the water inlet hole 1101.

[0045] In the above scheme, it should be noted that a number of filter grooves are provided on the circumference of the outer wall of the filter cartridge 2. When water enters, after water enters from the water inlet end 102, it will first flow into the inside of the filter cartridge 2, and then enter the water inlet channel 3 after being filtered by the filter grooves. The water entering the water inlet channel 3 flows again between the filter cartridge 2 and the flow limiting baffle ring 4. Under the action of the water flow, the flow limiting baffle ring 4 will rise under the action of buoyancy. When the water pressure gradually increases, the flow limiting baffle ring 4 will block the water inlet hole 1101, limit the water flow, and achieve flow limiting. In the utility model, the amount of water is limited by adding a flow limiter. The filter cartridge 2 can filter out impurities in the incoming water to prevent impurities from affecting the flow limiting effect. Under the action of water pressure, the flow limiting baffle ring 4 will slide between the filter cartridge 2 and the fixed plate 11 to block the water inlet hole 1101. By reducing the blocking area of ​​the water inlet hole 1101 by the flow limiting baffle ring 4, the flow limiting effect of water flow under higher water pressure is achieved.

[0046] Furthermore, a water trough 15 is formed between the fixed plate 11 and the filter cartridge 2. The water trough 15 is annular and is concentrically arranged with the flow limiting baffle ring 4. The flow limiting baffle ring 4 is slidably arranged in the water trough 15 along the axial direction of the water trough 15. A water flow channel is formed between the water trough 15 and the inside of the cavity 101, and the water flow channel is connected to the water inlet hole 1101 and the water inlet channel 3.

[0047] In the above scheme, the water flow channel formed by the water tank and the cavity 101 can make water easily enter the water inlet hole 1101 when the pressure is not high. When the water pressure increases, the water flow channel also facilitates the flow limiting baffle ring 4 to rise and block the water inlet hole 1101. It should be noted that the cross section of the flow limiting baffle ring 4 is circular. Therefore, even if the flow limiting baffle ring 4 is completely in contact with the fixing plate 11, it will not completely block the water inlet hole 1101, but will only reduce the water inlet area of ​​the water inlet hole 1101 to achieve the flow limiting effect. Secondly, since the flow limiting baffle ring 4 will not completely block the water inlet hole 1101, the limit baffle ring 4 will not be sucked by the water inlet hole 1101. When the water inlet stops, the limit baffle ring 4 will fall to the initial position.

[0048] In addition, since the flow limiting baffle ring 4 is initially located at the bottom of the water flow channel, the flow limiting baffle ring 4 will also block the water inlet channel 3. Therefore, when the water just enters the water flow channel, the flow limiting baffle ring 4 will also limit the water flowing out of the water inlet channel 3. When the flow limiting baffle ring 4 is located in the middle of the water flow channel, the water inlet hole 1101 and the water inlet channel 3 are fully open, and the water inlet volume is the largest at this time. When the flow limiting baffle ring 4 blocks the water inlet hole 1101, the water inlet volume will become smaller. Therefore, the water inlet speed of the device is a slow-fast-slow speed mode, which can not only reduce the damage of the water flow to the plastic water inlet system, but also speed up the water inlet speed, thereby improving the overall practicality of the device.

[0049] Furthermore, it also includes: a connecting column 12, which is arranged between the fixing plate 11 and the filter cartridge 2, the diameter of the connecting column 12 is smaller than the diameter of the fixing plate 11, and the diameter of the connecting column 12 is also smaller than the minimum end diameter of the filter cartridge 2; the side wall of the connecting column 12 cooperates with the end face of the filter cartridge 2 and the end face of the fixing plate 11 to form a water trough 15, and the connecting column 12, the filter cartridge 2 and the fixing plate 11 are an integrated structure.

[0050] In the above solution, the connecting column 12 is mainly used to prevent the limit stop ring 4 from shaking when affected by buoyancy, and can also be used to connect the filter cartridge 2 and the fixing plate 11 to form a whole.

[0051] Furthermore, a mounting groove 10 is formed on the circumference of the fixing plate 11 , and further comprises: a sealing ring 5 , which is disposed in the mounting groove 10 , and the sealing ring 5 is sealed and connected to the inner wall of the cavity 101 .

[0052] In the above solution, the cross section of the installation groove 10 is a concave shape, and the sealing ring 5 is a rubber ring. The sealing ring 5 is used for waterproofing and can increase the connection strength between the fixing plate 11 and the inside of the cavity 101.

[0053] Furthermore, the housing 1 also has a water outlet section 8 , which is disposed at a side away from the fixing plate 11 , and is communicated with the water outlet end 103 .

[0054] In the above scheme, the water outlet section 8 is a straight water pipe, which is used to communicate with the water inlet system of the toilet tank. A reinforcing plate is also provided on the outer wall of the water outlet section 8 to enhance the strength of the outer shell 1.

[0055] Furthermore, a mounting hole 9 is formed at one end of the fixing plate 11 away from the filter cartridge 2, and also includes: a bracket 7, which is arranged in the mounting hole 9, and the bracket 7 is used to support the fixing plate 11. The bracket 7 forms a water outlet gap 16 between the fixing plate 11 and the water outlet end 103, and the water outlet gap 16 is connected to the water outlet section 8 and the water inlet hole 1101.

[0056] In the above scheme, the bracket 7 is inserted into the installation hole 9, and the bracket 7 can separate the fixing plate 11 from the cavity 101 to form a water outlet gap 16, which can improve the water outlet efficiency and the installation stability of the fixing plate 11.

[0057] Furthermore, the bracket 7 includes: a connecting rod 702, which is arranged in the mounting hole 9; and at least two supporting legs 701, one end of the supporting leg 701 is fixedly connected to the connecting rod 702, and the other end is fixedly connected to the inner wall of the cavity 101.

[0058] In the above solution, specifically, four supporting legs 701 are provided, and the four supporting legs 701 abut against the inner wall of the cavity 101 , and the four supporting legs 701 will not block the water flow in the water outlet gap 16 from passing through.

[0059] Furthermore, it also includes: an anti-backflow gasket 6, which is slidably sleeved on the connecting rod 702 and is located on the side of the fixed plate close to the water outlet end 103, and the anti-backflow gasket 6 is used to cover the water inlet hole 1101.

[0060] In the above scheme, a through hole is provided in the middle of the anti-backflow gasket 6, and the anti-backflow gasket 6 is slidably connected to the connecting rod 702 through the through hole. It should be noted that the initial position of the anti-backflow gasket 6 is close to the end face of the fixed plate 11. At this time, the anti-backflow gasket 6 can completely block the water inlet hole 1101, so that the water flow on the upper part of the anti-backflow gasket 6 can be prevented from flowing back into the water inlet hole 1101 again to achieve anti-backflow. In addition, when water is entering, the water flowing into the water outlet section 8 from the water inlet hole 1101 will lift the anti-backflow gasket 6, so that the water quickly enters the water outlet section 8. Therefore, the anti-backflow gasket 6 of the present device can achieve unidirectional anti-backflow.

[0061] Furthermore, it also includes: a gasket 13, which is arranged on the side wall of the filter cartridge 2 and is located on the outer side wall of the smallest diameter section of the filter cartridge 2. The gasket 13 abuts against the inside of the cavity 101, and is used to limit the filter cartridge 2.

[0062] In the above scheme, since the filter cartridge 2 is arranged in the cavity 101, and the tube diameter of the filter cartridge 2 gradually decreases from the water inlet end 102 to the water outlet end 103, it is understandable that the side wall of the filter cartridge 2 at the position of the smallest diameter section of the filter cartridge 2 cannot be connected to the inside of the cavity 101, so it is necessary to add a gasket 13 to make the filter cartridge 2 abut against the inside of the cavity 101 to improve the stability of the filter cartridge 2.

[0063] Furthermore, it also includes: a vertical rod 14, which is arranged inside the filter cartridge 2. The vertical rod 14 is convenient for taking out the filter cartridge 2 and the fixing plate 11, and is convenient for later replacement and maintenance.

[0064] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A current limiter, characterized in that include: A housing (1) having a cavity (101) therein, wherein the cavity (101) has a water inlet end (102) and a water outlet end (103), wherein the water inlet end (102) is located below the water outlet end (103); A filter cartridge (2) having a hollow interior, the filter cartridge (2) being arranged in the cavity (101), the diameter of the filter cartridge (2) gradually decreasing from the water inlet end (102) to the water outlet end (103), and the filter cartridge (2) and the inner wall of the cavity (101) forming a water inlet channel (3); A fixing plate (11) is arranged in the cavity (101) and abuts against the inner wall of the cavity (101), and is located outside the filter cartridge (2) on a side away from the water inlet end (102); a water inlet hole (1101) is provided on the fixing plate (11); the water inlet hole (1101) is respectively connected to the water outlet end (103) and the water inlet channel (3); A flow-limiting baffle ring (4) is slidably disposed between the fixing plate (11) and the filter cartridge (2), and the flow-limiting baffle ring (4) is used to cover the water inlet hole (1101).

2. The current limiter according to claim 1, characterized in that A water trough (15) is formed between the fixing plate (11) and the filter cartridge (2); the water trough (15) is annular in shape; the water trough (15) is arranged concentrically with the flow limiting baffle ring (4); the flow limiting baffle ring (4) is slidably disposed in the water trough (15) along the axial direction of the water trough (15); The water trough (15) and the inner wall of the cavity (101) form a water flow channel, and the water flow channel is connected to the water inlet hole (1101) and the water inlet channel (3).

3. The current limiter according to claim 2, characterized in that: Also includes: A connecting column (12) is arranged between the fixing plate (11) and the filter cartridge (2), wherein the diameter of the connecting column (12) is smaller than the diameter of the fixing plate (11), and the diameter of the connecting column (12) is also smaller than the minimum end diameter of the filter cartridge (2); The side wall of the connecting column (12) cooperates with the end surface of the filter cartridge (2) and the end surface of the fixing plate (11) to form the water tank (15); the connecting column (12), the filter cartridge (2) and the fixing plate (11) are an integrated structure.

4. The current limiter according to claim 1, characterized in that The fixing plate (11) is provided with a mounting groove (10) in the circumferential direction, and further comprises: A sealing ring (5) is arranged in the installation groove (10), and the sealing ring (5) is sealedly connected to the inner wall of the cavity (101).

5. The current limiter according to claim 1, characterized in that: The housing (1) further comprises a water outlet section (8), wherein the water outlet section (8) is arranged on a side away from the fixing plate (11), and the water outlet section (8) is in communication with the water outlet end (103).

6. The current limiter according to claim 5, characterized in that The fixing plate (11) is provided with a mounting hole (9) at one end away from the filter cartridge (2), and further comprises: A bracket (7) is arranged in the cavity (101), the bracket (7) is used to support the fixing plate (11), the bracket (7) forms a water outlet gap (16) between the fixing plate (11) and the water outlet end (103), and the water outlet gap (16) is connected to the water outlet section (8) and the water inlet hole (1101).

7. The current limiter according to claim 6, characterized in that The support (7) comprises: A connecting rod (702) is arranged in the mounting hole (9); There are no less than two supporting legs (701), one end of each supporting leg (701) is fixedly connected to the connecting rod (702), and the other end of each supporting leg (701) is fixedly connected to the inner wall of the cavity (101).

8. The current limiter according to claim 7, characterized in that Also includes: An anti-backflow gasket (6) is slidably mounted on the connecting rod (702) and is located on a side of the fixing plate (11) close to the water outlet end (103), and the anti-backflow gasket (6) is used to cover the water inlet hole (1101).

9. The current limiter according to claim 1, characterized in that Also includes: A cushion block (13) is arranged on the outer wall of the filter cartridge (2) and is located on the outer wall of the smallest diameter section of the filter cartridge (2). The cushion block (13) abuts against the interior of the cavity (101). The cushion block (13) is used to limit the position of the filter cartridge (2).

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