Proportional distributor

Abstract

The utility model discloses a proportional distributor which comprises a supporting base, a central guide cylinder, an overflow cylinder, a water outlet bin and an adjusting piece, an annular space is formed between the central guide cylinder and the inner wall of the overflow cylinder, and the proportional distributor is characterized in that a plurality of overflow grooves are formed in the outer surface of the top of the central guide cylinder; the inner surface and the outer surface of the adjusting piece abut against the outer surface of the center guide cylinder and the inner surface of the overflow cylinder respectively. The top of the overflow cylinder is provided with an extension ring extending inwards, and the extension ring is arranged right above the annular space; a supporting plate is arranged at the bottom of the adjusting part, a mounting plate is arranged at the top of the adjusting part, the supporting plate is close to or abuts against the bottom face in the overflow cylinder, and a vertical distance is formed between the mounting plate and the extension ring; a limiting bolt is further connected to the mounting plate in a screwed mode, and the top of the limiting bolt abuts against the bottom face of the extension ring. According to the utility model, the convenience of adjustment and the accuracy of proportional distribution are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a sewage treatment technical field especially relates to a proportional distributor. BACKGROUND

[0002] At present, the quantity of domestic sewage and industrial wastewater increases year by year, and the research on sewage treatment technology has become the focus of attention. For example, in the sewage treatment process, multiple water pipes are often connected to the water tank, and the water pipes are connected to different sewage treatment tanks to carry out corresponding different treatment processes. Therefore, the proportion of water flow distribution cannot be well controlled by this kind of multiple branch shunt pipeline, which affects the efficiency of sewage treatment, or may cause a large amount of sewage to be unable to be treated in time, reducing the efficiency of sewage treatment. In the past, the shunt of liquid needs to be realized by two pipes and valve adjustment. This shunt method has poor control accuracy of shunt flow, and is not easy to adjust. When the total water inflow fluctuates, the distribution ratio of shunt flow will also be disturbed.

[0003] In the prior art, for example, application number: 202120490976.7, patent name: a quick shunt device with shearing function, which is used for quantitative shunt of sewage, but in this structure, the following shortcomings exist:

[0004] The adjusting plate directly uses a flexible plate. When adjusting the position of the adjusting plate, it is directly clamped between the center flow guide cylinder and the overflow cylinder through elastic deformation, and is clamped and limited by elastic deformation force. When the water flow on one side is relatively large, the adjusting plate will be inclined under stress, which will affect the separation effect, and thus affect the shunt effect. SUMMARY

[0005] The utility model aims at providing a proportional distributor, which realizes quantitative shunt of sewage and improves the convenience and accuracy of positioning and shunt adjustment by using the structure.

[0006] To achieve the above purpose, the utility model adopts the technical scheme of a proportional distributor, which comprises a supporting base, a center flow guide cylinder, an overflow cylinder, a water outlet bin and an adjusting part. The top of the center flow guide cylinder is coaxially arranged in the overflow cylinder. An annular space is formed between the center flow guide cylinder and the inner wall of the overflow cylinder. The adjusting part is arranged in the annular space. The water outlet bin is installed on the side wall of the overflow cylinder, and the water outlet bin and the overflow cylinder are communicated,

[0007] A plurality of overflow grooves are arranged on the outer surface of the top of the center flow guide cylinder. The inner surface and the outer surface of the adjusting part are respectively abutted on the outer surface of the center flow guide cylinder and the inner surface of the overflow cylinder.

[0008] The top of the overflow cylinder is provided with an extension ring extending inwardly, which is arranged directly above the annular spacing;

[0009] The bottom of the adjusting member is provided with a support plate, and the top of the adjusting member is provided with a mounting plate, the support plate is arranged close to or against the bottom surface inside the overflow cylinder, and the mounting plate has a vertical spacing with the extension ring; a limiting bolt is also screwed on the mounting plate, and the top of the limiting bolt is against the bottom surface of the extension ring.

[0010] In the above technical solution, the adjusting member includes a vertical plate, a clamping plate and a flexible baffle, the clamping plate and the vertical plate are connected by bolt locking, the flexible baffle is arranged between the clamping plate and the vertical plate, the inner end surface of the flexible baffle is against the outer surface of the center flow guide cylinder, and the outer end surface of the flexible baffle is against the inner surface of the overflow cylinder.

[0011] In the above technical solution, the support plate and the mounting plate are respectively installed at the bottom and the top of the vertical plate, the clamping plate and the flexible baffle are arranged on one side of the vertical plate, and the support plate and the mounting plate are arranged on the other side of the vertical plate.

[0012] In the above technical solution, a through hole is arranged on the mounting plate, a nut coaxially arranged with the through hole is fixedly installed on the bottom surface of the mounting plate, the middle part of the limiting bolt is screwed and connected with the nut, and the top of the limiting bolt passes through the through hole and is against the bottom surface of the extension ring; the limiting bolt makes the support plate arranged against or close to the bottom surface inside the overflow cylinder.

[0013] In the above technical solution, in the natural state of the flexible baffle, the bottom surface of the flexible baffle is arranged below the bottom surfaces of the vertical plate and the clamping plate, and the bottom surface of the support plate is arranged flush with the bottom surface of the vertical plate; when the support plate is arranged against the inner bottom surface of the overflow cylinder or close to the inner bottom surface of the overflow cylinder, the flexible baffle is pressed and tightly arranged against the inner bottom surface of the overflow cylinder.

[0014] In the above technical solution, the width of the flexible baffle is greater than the width of the vertical plate and the clamping plate, and the inner end surface and the outer end surface of the vertical plate and the clamping plate are not in contact with the outer surface of the center flow guide cylinder and the inner surface of the overflow cylinder, respectively.

[0015] In the above technical solution, two water outlets are respectively arranged on the outer wall of the water outlet bin, and the water outlets are arranged below the bottom plane of the overflow cylinder;

[0016] A partition plate is arranged in the water outlet bin, the partition plate is arranged between the two water outlets, and the inner end surface of the partition plate is against the outer surface of the center flow guide cylinder;

[0017] The partition plate divides the water outlet bin into two chambers, each of which communicates with the overflow cylinder.

[0018] In the technical scheme, the water outlet bin is arranged at the rear side of the center flow guide cylinder, the overflow grooves are arranged at the left side, the front side and the right side of the center flow guide cylinder, the last one of the overflow grooves at the left side is arranged at the left side of the front end of the water outlet bin, and the last one of the overflow grooves at the right side is arranged at the right side of the front end of the water outlet bin.

[0019] In the technical scheme, the overflow grooves are triangular structures, and a plurality of the overflow grooves are arranged on the top surface of the center flow guide cylinder.

[0020] In the technical scheme, the center flow guide cylinder is a hollow structure with an open top, and the top plane of the center flow guide cylinder is arranged below the top plane of the overflow cylinder.

[0021] The lower side wall of the center flow guide cylinder is provided with a water inlet, and the water inlet is arranged below the overflow cylinder.

[0022] In the technical scheme, the top of the overflow cylinder is provided with a cover plate, and one side of the cover plate is hingedly connected with the extension ring or the water outlet bin.

[0023] In the technical scheme, the bottom of the overflow cylinder is mounted on the support base, and the outer surface of the center flow guide cylinder is connected with the support base through the connecting plate.

[0024] Due to the technical scheme, the utility model has the following advantages compared with the prior art:

[0025] 1. In the utility model, the adjusting part is provided with a limiting bolt, and the adjusting part is stably limited in the annular interval through the rotation of the limiting bolt, so that the compression resistance is high, and the stability and accuracy of the flow distribution are ensured.

[0026] 2. In the utility model, the flexible baffle is clamped and limited by the vertical plate and the clamping plate, so that the flexible baffle is convenient to maintain, replace and position. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 is a structural schematic view of the embodiment one of the utility model;

[0028] Figure 2 is a structural schematic view of another perspective of the embodiment one of the utility model;

[0029] Figure 3 is a structural schematic view of the embodiment one of the utility model (the cover plate is not shown);

[0030] Figure 4is the structural schematic view of the embodiment one of the utility model (the top of the cover plate and the water outlet bin are not shown);

[0031] Figure 5 is Figure 4 is the half cut structure schematic view in the embodiment one of the utility model;

[0032] Figure 6 is the structural schematic view of the adjusting part in the embodiment one of the utility model.

[0033] Wherein: 1, support base;2, center flow guide cylinder;3, overflow cylinder;4, water outlet bin;5, adjusting part;6, annular spacing;7, overflow groove;8, extension ring;9, support plate;10, mounting plate;11, limit bolt;12, water outlet;13, partition plate;14, chamber;15, vertical plate;16, clamping plate;17, flexible baffle;18, nut;19, water inlet;20, cover plate;21, connecting plate;22, drain. Specific implementation

[0034] The utility model is further described below in combination with the drawings and embodiments:

[0035] Embodiment one: refer to Figures 1-6 As shown in the figure, a proportional distributor includes support base 1, center flow guide cylinder 2, overflow cylinder 3, water outlet bin 4 and adjusting part 5, the top of the center flow guide cylinder 2 is coaxially arranged in the overflow cylinder 3, the top plane of the center flow guide cylinder 2 is arranged below the top plane of the overflow cylinder 3, the annular spacing 6 is formed between the center flow guide cylinder 2 and the inner wall of the overflow cylinder 3, and the adjusting part 5 is arranged in the annular spacing 6;The water outlet bin 4 is installed on the side wall of the overflow cylinder 3, and the water outlet bin 4 is communicated with the overflow cylinder 3,

[0036] A plurality of overflow grooves 7 are arranged on the top outer surface of the center flow guide cylinder 2, and the inner surface and the outer surface of the adjusting part 5 are respectively abutted on the outer surface of the center flow guide cylinder 2 and the inner surface of the overflow cylinder 3;

[0037] The top of the overflow cylinder 3 is provided with the extension ring 8 extending inward, and the extension ring 8 is arranged directly above the annular spacing 6;

[0038] The bottom of the adjusting part 5 is provided with the support plate 9, the top of the adjusting part 5 is provided with the mounting plate 10, the support plate 9 is arranged close to the bottom surface in the interior of the overflow cylinder 3, or the bottom surface of the support plate 9 is abutted on the bottom surface in the interior of the overflow cylinder 3, and the mounting plate 10 has a vertical spacing with the extension ring 8;A limit bolt 11 is also screwed on the mounting plate 10, and the top of the limit bolt 11 is abutted on the bottom surface of the extension ring 8.In this embodiment, the bottom surface of the support plate is abutted on the bottom surface in the interior of the overflow cylinder.

[0039] In this embodiment, water enters from the bottom of the central flow guide cylinder and flows upwards along the central flow guide cylinder. Due to the existence of the overflow groove, the two ends of the overflow groove are in communication with the inner surface and the outer surface of the central flow guide cylinder respectively. Therefore, the upward flowing water flows into the overflow cylinder from the overflow groove, that is, overflows into the annular spacing. Due to the existence of the water outlet bin, the water overflows into the water outlet bin and flows out from the water outlet bin.

[0040] In the utility model, the structure of the supporting base, the central flow guide cylinder, the overflow cylinder and the water outlet bin is the existing structure. Two water outlets 12 are arranged on the outer wall of the water outlet bin 4. The water outlets 12 are arranged below the bottom plane of the overflow cylinder 3.

[0041] A partition plate 13 is arranged in the water outlet bin 4. The partition plate 13 is arranged between the two water outlets 12. The inner end surface of the partition plate 13 abuts against the outer surface of the central flow guide cylinder 2. The outer end, the top and the bottom of the partition plate abut against the inner wall of the water outlet bin respectively.

[0042] The partition plate 13 divides the water outlet bin 4 into two chambers 14 which are in communication with the overflow cylinder 3 respectively. Each water outlet 12 is in communication with a chamber 14 respectively.

[0043] In this embodiment, the water outlet bin is arranged at the rear side of the overflow cylinder. The front end of the water outlet bin is in communication with the overflow cylinder, that is, the chamber is in communication with the annular spacing. Due to the existence of the partition plate, essentially, after the water from the overflow groove of the central flow guide cylinder flows into the annular spacing, the water flows into the two chambers from the two sides of the annular spacing respectively. The water is discharged through the corresponding water outlets. In this embodiment, an adjusting member is arranged. The bottom of the adjusting member abuts against the bottom surface inside the overflow cylinder, that is, the adjusting member abuts against the bottom surface of the annular spacing. The inner end surface of the adjusting member abuts against the outer surface of the central flow guide cylinder. The outer end surface of the adjusting member abuts against the inner surface of the overflow cylinder. In this way, the adjusting member and the partition plate divide the annular spacing into two sections and divide the annular spacing into two groups of arc-shaped spacings. The water overflowing into the corresponding arc-shaped spacing through the corresponding overflow grooves flows into the corresponding chamber and is discharged through the corresponding water outlets. In this way, by adjusting the position of the adjusting member, the number of the overflow grooves facing the corresponding arc-shaped spacings can be different, so that the amount of water overflowing into the corresponding arc-shaped spacings is different, thereby realizing quantitative flow adjustment. For example, 10 overflow grooves are arranged. The two sides of the adjusting member have 2 overflow grooves and 8 overflow grooves respectively. In this way, the water discharge ratio of the two water outlets is 2:8. Similarly, by adjusting the position of the adjusting member, the water discharge ratio of the two water outlets can be realized, thereby realizing quantitative water flow distribution.

[0044] In order to facilitate the adjustment of the position of the adjusting member in the annular spacing, and to ensure that the adjusting member is stable after adjustment in the annular spacing and is not tilted or otherwise caused by water flow. In this embodiment, a support plate, a mounting plate and a limiting bolt are provided, the support plate is abutted on the bottom surface of the annular spacing (the bottom surface inside the overflow cylinder), and then the limiting bolt is rotated to make the top of the limiting bolt protrude upward until the limiting bolt tightly abuts on the bottom surface of the extension ring, so that the limiting bolt and the support plate can stably limit the adjusting member in the annular spacing and resist the impact force of water flow. When the position of the adjusting member needs to be adjusted, the limiting bolt is screwed downward to make it out of contact with the extension ring, so that the adjusting member can be moved, and after the movement of the adjusting member is completed, the above limiting action can be repeated. The support plate can increase the contact area with the bottom surface of the annular spacing, thereby increasing the anti-tilting and anti-toppling ability, and also serving as a positioning function, so that the adjusting member can be perpendicular to the bottom surface of the annular spacing, preventing the adjusting member from tilting and ensuring the water distribution effect, so that the water can be distributed as accurately as possible according to the preset proportion. At the same time, the support part and the mounting plate are arranged to form a U-shaped structure with the vertical plate, which has better strength and stronger anti-deformation ability.

[0045] Referring to Figure 6 As shown in the figure, the adjusting member 5 includes a vertical plate 15, a clamping plate 16 and a flexible baffle 17, the clamping plate 16 and the vertical plate 15 are connected by bolt locking, and the flexible baffle 17 is arranged between the clamping plate 16 and the vertical plate 15. The inner end surface of the flexible baffle 17 abuts on the outer surface of the center flow guide cylinder 2, and the outer end surface of the flexible baffle 17 abuts on the inner surface of the overflow cylinder 3.

[0046] The support plate 9 and the mounting plate 10 are respectively installed on the bottom and top of the vertical plate 15, the clamping plate 16 and the flexible baffle 17 are arranged on one side of the vertical plate 15, and the support plate 9 and the mounting plate 10 are arranged on the other side of the vertical plate 15.

[0047] In the natural state of the flexible baffle, the bottom surface of the flexible baffle is arranged below the bottom surface of the vertical plate and the clamping plate, and the bottom surface of the support plate is arranged flush with the bottom surface of the vertical plate. When the support plate abuts on the inner bottom surface of the overflow cylinder or is close to the inner bottom surface of the overflow cylinder, the flexible baffle is pressed and tightly abuts on the inner bottom surface of the overflow cylinder.

[0048] In this embodiment, the flexible baffle is preferably made of rubber, which has elastic deformation capability. The width of the flexible baffle is greater than the distance value of the annular distance, and the height of the flexible baffle is greater than the height of the center flow guide tube extending into the center of the overflow cylinder. Therefore, when the adjusting member is installed, the flexible baffle is directly clamped into the annular distance, and the inner end and the outer end of the flexible baffle are respectively subjected to the extrusion force of the outer wall of the center flow guide tube and the inner wall of the overflow cylinder, so that the flexible baffle is deformed under pressure and tightly abuts against the outer wall of the center flow guide tube and the inner wall of the overflow cylinder, thereby separating the inner end surface and the outer end surface of the annular distance. Then, the flexible baffle is moved downward, and the bottom of the flexible baffle abuts against the bottom surface of the annular distance. Then, the limiting bolt is rotated to push the vertical plate to move downward until the bottom surface of the supporting plate abuts against the bottom surface of the annular distance. At this time, the flexible baffle is deformed under pressure, so that the bottom of the flexible baffle tightly abuts against the bottom surface of the annular distance, thereby separating the bottom surface of the annular distance. Preferably, at this time, the top surface of the flexible baffle is above the top surface of the center flow guide tube, so that the adjusting member separates the annular distance.

[0049] Of course, in another embodiment, the bottom surface of the supporting plate can not abut against the bottom surface inside the overflow cylinder, and only the bottom of the flexible baffle tightly abuts against the bottom surface inside the overflow cylinder.

[0050] In this embodiment, the bolt passes through the vertical plate, the flexible baffle, and the clamping plate to tightly lock the three together. If the flexible baffle is worn out, the bolt is disassembled, the three are separated, and the flexible baffle is replaced. If the vertical plate or the clamping plate is damaged, the corresponding part is also replaced. In this way, the maintenance and replacement are convenient, and the maintenance and replacement cost is also more economical.

[0051] Referring to Figure 6 As shown in the figure, the mounting plate 10 is provided with a through hole, and the bottom surface of the mounting plate 10 is fixedly provided with a nut 18 coaxially arranged with the through hole. The middle part of the limiting bolt 11 is screw-connected to the nut 18, and the top part of the limiting bolt 11 abuts against the bottom surface of the extension ring 8 through the through hole. The limiting bolt makes the supporting plate abut against or be close to the bottom surface inside the overflow cylinder.

[0052] In this embodiment, the nut and the mounting plate are fixed together, and the nut and the mounting plate are preferably fixed by welding. In this way, the limiting bolt can be screw-connected to the mounting plate, that is, the limiting bolt is screw-connected to the nut. In this way, the thickness of the mounting plate can be thinner, and the cost is more economical. Of course, the thickness of the mounting plate can be thicker, and a screw hole is directly arranged on the mounting plate, and the limiting bolt is screw-connected to the screw hole of the mounting plate.

[0053] The width of the flexible baffle is greater than the width of the vertical plate and the clamping plate, and the inner end surface and the outer end surface of the vertical plate and the clamping plate are not in contact with the outer surface of the center flow guide cylinder and the inner surface of the overflow cylinder, respectively. The vertical plate and the clamping plate are preferably made of stainless steel, which has good strength and does not contact the center flow guide cylinder and the overflow cylinder, thereby preventing scratching of the center flow guide cylinder and the overflow cylinder.

[0054] Referring to Figures 3-5 As shown, the water outlet bin 4 is arranged at the rear side of the center flow guide cylinder 2, the overflow grooves 7 are arranged at the left side, the front side and the right side of the center flow guide cylinder 2, and the last one of the overflow grooves 7 on the left side is arranged at the left side of the front end of the water outlet bin 4, and the last one of the overflow grooves 7 on the right side is arranged at the right side of the front end of the water outlet bin 4.

[0055] The center flow guide cylinder 2 is a hollow structure with an open top, and the top plane of the center flow guide cylinder 2 is arranged below the top plane of the overflow cylinder 7.

[0056] The lower side wall of the center flow guide cylinder 2 is provided with a water inlet 19, and the water inlet 19 is arranged below the overflow cylinder 3.

[0057] In this embodiment, the bottom plane of the water outlet bin is arranged below the bottom plane of the overflow cylinder, and therefore the top planes of the two water outlets are each arranged below the annular spacing bottom plane, so that the water in the annular spacing can smoothly flow into the corresponding chamber and then flow out through the corresponding water outlet.

[0058] At the same time, the center flow guide cylinder above the water outlet bin is not provided with an overflow groove, and when the adjusting member is arranged at the right side of the last overflow groove on the left side or at the left side of the last overflow groove on the right side, all the water flowing out of the overflow grooves will flow into a group of arc-shaped spacings, so that the water can flow into one chamber at 100% and be discharged from one water outlet.

[0059] When the proportional distributor is used, water enters the center flow guide cylinder from the water inlet, and then overflows from the overflow grooves into the annular spacings when the water level is above the bottom surface of the overflow grooves, and then flows into the corresponding chamber of the water outlet bin through the annular spacings and is discharged from the corresponding water outlet. In this way, the water flowing out of one water inlet can be discharged from the corresponding water outlet through the proportional distributor to install the corresponding drainage proportion.

[0060] Preferably, in this embodiment, the overflow grooves are triangular structures, and a plurality of overflow grooves are arranged on the top surface of the center flow guide cylinder. The triangular overflow grooves adopt an inverted isosceles triangular structure, so that the proportional distribution of the water flow can be accurately adjusted by adjusting the position of the adjusting member.

[0061] Referring to Figure 1 ,2 As shown in the drawings, the top of the overflow cylinder 3 is provided with a cover plate 20, one side of the cover plate 20 is hingedly connected with the extension ring 8 or the water outlet bin 4; when the proportional distributor is used, the cover plate is covered, the top of the overflow cylinder is blocked, when the cover plate is opened, the position adjustment of the adjusting part is facilitated, and the internal sundries is also facilitated to be cleaned. In the embodiment, the cover plate and the top of the water outlet bin are hingedly connected.

[0062] Referring to Figures 1-5 As shown in the drawings, the bottom of the overflow cylinder 3 is mounted on the support base 1, and the outer surface of the center flow guide cylinder 2 is connected with the support base 1 through the connecting plate 21.

[0063] The support base not only supports the overflow cylinder, but also connects and supports and reinforces the center flow guide cylinder, so that the length of the center flow guide cylinder can be set to be longer, and the center flow guide cylinder can be processed to prevent deformation and have more water storage capacity.

[0064] Furthermore, a drain port 22 with a valve is arranged on the lower outer surface of the center flow guide cylinder, when the proportional distribution part needs to be overhauled, the drain port can be opened to drain all the water in the center flow guide cylinder.

[0065] In the description of the present application, it should be understood that the terms "upper", "lower", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the present application. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specifically limited.

[0066] In the present application, unless otherwise specified and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, for example, two are connected in a mechanical abutting or abutting manner through abutting, touching and the like, two can also be directly hung or hung through an intermediate medium, or two elements can be connected or interacted. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific situation.

Claims

1. A proportional dispenser comprising a supporting base, a central flow guide, an overflow cylinder, a water outlet bin and an adjusting member, the top of the central flow guide is coaxially arranged in the overflow cylinder, an annular space is formed between the central flow guide and the inner wall of the overflow cylinder, and the adjusting member is arranged in the annular space; the water outlet bin is mounted on the side wall of the overflow cylinder and communicates with the overflow cylinder, characterized in that: a plurality of overflow grooves are arranged on the outer surface of the top of the central flow guide, the inner surface and the outer surface of the adjusting member are respectively abutted on the outer surface of the central flow guide and the inner surface of the overflow cylinder; the top of the overflow cylinder is provided with an inwardly extending extension ring, and the extension ring is arranged directly above the annular space; the bottom of the adjusting member is provided with a supporting plate, and the top of the adjusting member is provided with a mounting plate, the supporting plate is arranged close to or abutted on the inner bottom surface of the overflow cylinder, and the mounting plate has a vertical space with the extension ring; a limiting bolt is screwed on the mounting plate, and the top of the limiting bolt is abutted on the bottom surface of the extension ring. The adjusting member comprises a vertical plate, a clamping plate and a flexible baffle, the clamping plate and the vertical plate are connected by bolt locking, the flexible baffle is arranged between the clamping plate and the vertical plate, the inner end surface of the flexible baffle is abutted on the outer surface of the central flow guide, and the outer end surface of the flexible baffle is abutted on the inner surface of the overflow cylinder. The supporting plate and the mounting plate are respectively mounted on the bottom and the top of the vertical plate, the clamping plate and the flexible baffle are arranged on one side of the vertical plate, and the supporting plate and the mounting plate are arranged on the other side of the vertical plate. A through hole is arranged on the mounting plate, a nut coaxially arranged with the through hole is fixedly mounted on the bottom surface of the mounting plate, the middle part of the limiting bolt is screwed and connected with the nut, and the top of the limiting bolt passes through the through hole and is abutted on the bottom surface of the extension ring; the limiting bolt makes the supporting plate abutted on or arranged close to the inner bottom surface of the overflow cylinder.

2. The proportional divider of claim 1, wherein: In the natural state of the flexible baffle, the bottom surface of the flexible baffle is arranged below the bottom surfaces of the vertical plate and the clamping plate, and the bottom surface of the supporting plate is arranged flush with the bottom surface of the vertical plate; when the supporting plate is abutted on the inner bottom surface of the overflow cylinder or arranged close to the inner bottom surface of the overflow cylinder, the flexible baffle is pressed and tightly abutted on the inner bottom surface of the overflow cylinder.

3. The proportional divider of claim 2, wherein: The width of the flexible baffle is greater than the width of the vertical plate and the clamping plate, and the inner end surface and the outer end surface of the vertical plate and the clamping plate are not in contact with the outer surface of the central flow guide and the inner surface of the overflow cylinder, respectively.

4. The proportional divider of claim 1, wherein: Two water outlets are respectively arranged on the outer wall of the water outlet bin, and the water outlets are arranged below the bottom plane of the overflow cylinder; 5. The proportional divider of claim 2, wherein: A partition plate is arranged in the water outlet bin, the partition plate is arranged between the two water outlets, and the inner end surface of the partition plate is abutted on the outer surface of the central flow guide; 6. The proportional divider of claim 2, wherein: The partition plate divides the water outlet bin into two chambers which respectively communicate with the overflow cylinder, and each water outlet communicates with a chamber.

7. The proportional dispenser of claim 1, wherein: ​ ​ ​ 8. The proportional dispenser of claim 7, wherein: The water outlet bin is arranged at the rear side of the center flow guide cylinder, the overflow grooves are arranged at the left side, front side and right side of the center flow guide cylinder, the last one of the overflow grooves at the left side is arranged at the left side of the front end of the water outlet bin, and the last one of the overflow grooves at the right side is arranged at the right side of the front end of the water outlet bin. And / or, the overflow grooves are triangular structures, and a plurality of the overflow grooves are arranged on the top surface of the center flow guide cylinder in a spaced manner.

9. The proportional dispenser of claim 1, wherein: The center flow guide cylinder is a hollow structure with an open top, and the top plane of the center flow guide cylinder is arranged below the top plane of the overflow cylinder. A water inlet is arranged on the lower side wall of the center flow guide cylinder, and the water inlet is arranged below the overflow cylinder.

10. The proportional dispenser of claim 1, wherein: A cover plate is arranged on the top of the overflow cylinder, and one side of the cover plate is hingedly connected to the extension ring or the water outlet bin. And / or, the bottom of the overflow cylinder is mounted on the support base, and the outer surface of the center flow guide cylinder is connected to the support base through the connecting plate.

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