Mixer for on-site mixer mixing valve and on-site mixer mixing valve comprising same

Abstract

The utility model relates to a mixer for a mixing valve of an on-site mixer, which is suitable for being embedded in a horizontal water inlet part of the mixing valve of the on-site mixer, and the outer contour of the mixer is matched with the circumferential inner wall of the horizontal water inlet part. The mixer comprises a separation body, a backward flow guide structure which is located on the upper side of the separation body and forms a backward flow guide area used for guiding the concentrated solution to flow backwards by a certain distance, and a main stirring and mixing structure which is located on the lower side of the separation body and forms a main stirring and mixing area used for stirring and mixing the concentrated solution and drinking water for multiple times. The concentrated solution through opening penetrates through the partition body and is communicated with the backward flow guide area and the main stirring and mixing area, the positioning structure is arranged at the front end of the partition body and used for being connected with the front end wall of the horizontal water inlet part in a clamped mode, and the main stirring and mixing area is communicated with a vertical liquid outlet part of the mixing valve of the on-site mixer. The utility model further relates to a mixing valve of the on-site mixing machine comprising the mixer. The liquid mixing path is long, the turbulence effect is enhanced, mixing is sufficient, the layering phenomenon of drinks is eliminated, and the taste is stable and uniform.

Description

Technical Field

[0001] The utility model relates to the technical field of on-the-spot adjustment machines, in particular to a mixer for an on-the-spot adjustment machine mixing valve and the on-the-spot adjustment machine mixing valve comprising the mixer. Background Art

[0002] Currently, when using concentrated ingredients with poor solubility (such as concentrates containing fiber), the mixing valves in commercially available dispensers can cause inadequate mixing of the concentrate and drinking water. This inadequate mixing can lead to separation of the concentrate and drinking water, sedimentation of the concentrate, uneven taste, and significant variations in sugar content. This creates a poor experience for consumers and creates numerous challenges for operators and ingredient suppliers, necessitating an urgent industry solution. Utility Model Content

[0003] In order to solve the above problems, the present invention provides a mixer for a mixing valve of a ready-mixed machine, which can fully mix various concentrated liquids with drinking water, and a mixing valve of a ready-mixed machine including the mixer.

[0004] To achieve the above-mentioned purpose, according to one aspect of the present invention, a mixer for a mixing valve of an on-the-spot mixing machine is provided, which is suitable for being embedded in the horizontal water inlet of the mixing valve of the on-the-spot mixing machine, and its outer contour is configured to adapt to the circumferential inner wall of the horizontal water inlet, wherein the mixer includes a partition body, a backward guide structure located on the upper side of the partition body and formed with a backward guide area for guiding the concentrated liquid from the concentrated liquid inlet of the on-the-spot mixing valve to flow backward for a distance, a main stirring and mixing structure located on the lower side of the partition body and formed with a main stirring and mixing area for multiple stirring and mixing of the concentrated liquid and drinking water from the rear end of the horizontal water inlet, a concentrated liquid through-port arranged through the partition body and connecting the backward guide area and the main stirring and mixing area, and a positioning structure arranged at the front end of the partition body for clamping with the front end wall of the horizontal water inlet, and wherein the main stirring and mixing area is connected with the vertical liquid outlet of the on-the-spot mixing valve.

[0005] In the utility model, the mixer can be installed and positioned in the horizontal water inlet of the mixing valve by means of the positioning structure on the front end of the partition body and the outer contour setting adapted to the circumferential inner wall of the horizontal water inlet; the setting of the partition body enables the concentrate and drinking water as well as the subsequent mixed liquid to be effectively separated; the setting of the backward guide area enables the concentrate to flow backward first after entering the mixing valve; and the setting of the main stirring mixing area enables the concentrate to be fully mixed with the drinking water on a longer mixing path with a continuously changing flow cross-section, thereby ultimately achieving a beverage without stratification, uniform taste and stable sugar content (the deviation of the sugar content accuracy value from the standard value is controlled within the range of ±0.1).

[0006] Furthermore, the mixer also includes a secondary stirring and mixing structure located on the upper side of the separating body and at the front end of the rear guide area, forming a secondary stirring and mixing zone for secondary stirring and mixing of the mixed liquid from the main stirring and mixing zone, wherein the separating body is also provided with a mixed liquid through-port that passes through the main stirring and mixing zone and the secondary stirring and mixing zone, and the main stirring and mixing zone is connected to the vertical liquid outlet part of the mixing valve of the current regulating machine via the secondary stirring and mixing zone.

[0007] Through the above-mentioned structural arrangement, the mixed liquid from the main stirring and mixing zone can enter the secondary stirring and mixing zone for secondary stirring and mixing, further extending the mixing path and enhancing the mixing effect of drinking water and concentrate.

[0008] Furthermore, the backward guide structure includes a front end stop and a rear end stop, the backward guide area is formed between the front end stop and the rear end stop, and the concentrated liquid through-port is arranged close to the rear end stop, and the rear end stop is arranged as an arc structure that arches backward.

[0009] The front end stop is provided to stop the forward flow of the concentrate, that is, even if the concentrate input from the concentrate inlet of the mixing valve enters the rear guide area and moves forward a small part, it will be stopped back in time by the front end stop and continue to flow backward, so that the concentrate and drinking water can continuously intersect; the rear end stop is provided to prevent the backward flowing concentrate and the forward flowing drinking water from directly colliding horizontally and causing fluctuations and invalid losses in the flow rates of the concentrate and drinking water, and at the same time, drive the flow direction of the concentrate to change direction, that is, to enter the main stirring and mixing area on the lower side of the partition body through the concentrate through-hole.

[0010] Furthermore, the main stirring and mixing structure includes a plurality of stirring and mixing units, each stirring and mixing unit includes a central stirring tooth and a pair of side stirring teeth, wherein, in each stirring and mixing unit, the pair of side stirring teeth and the central stirring tooth are arranged at intervals in front and back, and side diversion spaces are formed on both sides of the central stirring tooth, and the pair of side stirring teeth are symmetrically distributed relative to the central stirring tooth and form a central confluence space therebetween, and the concentrated liquid through-port is located in the front side of the central stirring tooth of the rearmost stirring and mixing unit among the multiple stirring and mixing units in the front and back direction.

[0011] Through the above structural arrangement, the drinking water from the mixing valve connecting pipe first undergoes a split on both sides by the central stirring teeth of the last stirring and mixing unit among multiple stirring and mixing units, enters between the central stirring teeth and the corresponding pair of side stirring teeth along the side split spaces from both sides, then converges with the concentrated liquid flowing down from the concentrated liquid through-port and enters the central converging space between the pair of side stirring teeth, then flows out from this central converging space, splits on both sides again after encountering the central stirring teeth of the second stirring and mixing unit, and then converges again through the corresponding pair of side stirring teeth, and so on. Through multiple splits and convergences for stirring and mixing, a fully mixed liquid mixture is formed.

[0012] Furthermore, the central stirring teeth are arranged in an arc shape that arches backward, and a pair of side stirring teeth are arranged facing forward and gradually opening outwards on both sides.

[0013] Through this structural arrangement, the enhanced turbulent flow effect can be effectively achieved.

[0014] Still further, the main stirring and mixing structure further includes a front stop baffle, which is respectively connected to the front ends of a pair of side stirring teeth of the foremost stirring and mixing unit among multiple stirring and mixing units, so that the liquid mixture formed after passing through the main stirring and mixing area is blocked between this front stop baffle and the pair of side stirring teeth.

[0015] Through the above structural arrangement, the liquid mixture that has been fully stirred and mixed in the main stirring and mixing area no longer flows forward continuously, but converges here.

[0016] Still further, a liquid mixture through-port that penetrates the main stirring and mixing area and the secondary stirring and mixing area is also provided on the separating body, and this liquid mixture through-port is located between the front end stop and the front stop baffle in the front-back direction.

[0017] Through the above structural arrangement, the liquid mixture formed in the main stirring and mixing area will enter the secondary stirring and mixing area upward through this liquid mixture through-port for secondary stirring and mixing.

[0018] Still further, the secondary stirring and mixing structure includes a central stirring tooth and a "field"-shaped stirring and draining port located on the front side of the central stirring tooth. The central stirring tooth is arranged in an arc shape that arches backward, and is used to guide the liquid mixture from the liquid mixture through-port to both sides and then forward into this stirring and draining port.

[0019] Through the above structural arrangement, the liquid mixture from the main stirring and mixing area first undergoes a split by the central stirring tooth, then converges and enters the "field"-shaped stirring and draining port, and then is split and drained again through the "field"-shaped stirring and draining port, enters the vertical liquid outlet part of the ready-to-drink machine mixing valve. Through the secondary stirring and mixing in this secondary stirring and mixing area, the liquid mixture is mixed more fully.

[0020] Furthermore, the mixer is formed by integral injection molding; the partition body is arranged horizontally and has surrounding walls extending upward from both side edges of its upper surface; and the positioning structure is a positioning notch.

[0021] By setting the upper wall of the partition body, the contact area between the partition body and the circumferential inner wall of the horizontal water inlet is increased, effectively blocking the crosstalk between the upper concentrated liquid and the lower mixed liquid of the partition body between the circumferential inner walls, and at the same time enhancing the rigidity of the overall structure of the mixer.

[0022] According to another aspect of the present invention, a mixing valve for an on-the-spot machine is provided, which is characterized in that it includes the above-mentioned mixer for the mixing valve for an on-the-spot machine, wherein a positioning rib that is engaged with the positioning structure is provided on the front end wall of the horizontal water inlet part; the front end wall of the horizontal water inlet part is also provided with a positioning support rib for supporting the partition body.

[0023] In the present invention, the positioning of the mixer in the mixing valve is achieved by engaging the positioning structure (specifically the positioning notch) on the mixer with the positioning ribs on the horizontal water inlet portion of the existing mixing valve. At the same time, the positioning support ribs also play a supporting role for the mixer. These structures ensure the accurate assembly of the mixer in the mixing valve.

[0024] These and other aspects of the present invention will be more clearly explained with reference to the embodiments described below. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The structure and further objects and advantages of the present invention will be better understood through the following description in conjunction with the accompanying drawings, in which like reference numerals identify like elements:

[0026] Figure 1 This is a schematic three-dimensional diagram of a mixer for a mixing valve of an on-the-spot machine according to a specific embodiment of the present utility model, viewed obliquely from above;

[0027] Figure 2 yes Figure 1 The schematic perspective view of the mixer for the mixing valve of the current regulating machine is viewed from obliquely below;

[0028] Figure 3 yes Figure 1 A schematic top view of a mixer for a mixing valve of a current regulating machine is shown;

[0029] Figure 4 yes Figure 1 A schematic front view of a mixer for a mixing valve of an existing machine is shown;

[0030] Figure 5 yes Figure 4The figure shows a cross-sectional view of the mixer for the mixing valve of the current mixer along the line AA, which schematically illustrates the mixing paths of the concentrate and drinking water in the main mixing zone during multiple rounds;

[0031] Figure 6 is Figure 3 The top view of the mixer for the mixing valve of the current regulating machine schematically shows the mixing path of the mixed liquid in the secondary stirring and mixing zone;

[0032] Figure 7 is included Figure 1 A schematic top view of a mixer for a mixing valve for a mixing machine is shown;

[0033] Figure 8 yes Figure 7 The figure shows a cross-sectional view of the mixing valve of the existing mixer along line BB, with arrows indicating the flow paths of the concentrate, drinking water and mixed liquid;

[0034] Figure 9 yes Figure 8 The cross-sectional view of the mixing valve of the current regulating machine along the CC line is shown;

[0035] Figure 10 yes Figure 8 The view of the mixing valve of the on-site machine after removing the mixer for the mixing valve of the on-site machine;

[0036] Figure 11 yes Figure 10 The cross-sectional view of the mixing valve of the current regulating machine along the DD line is shown;

[0037] Figure 12 is Figure 8 A view of the mixing valve of a ready-mix machine showing the flow paths of concentrate, drinking water, and mixed liquid. DETAILED DESCRIPTION

[0038] The specific implementation of the present utility model will be described below with reference to the accompanying drawings.

[0039] First, it should be noted that, in this article, the terms "connected" and "through" both mean that fluid can pass through, that is, the fluid can flow smoothly between the two parts / components that are "connected" or "through".

[0040] Secondly, in this document, directional expressions used to explain the structure and / or operation of various parts of the disclosed embodiments, such as "inside," "outside," "front," and "back," are not absolute but relative. These expressions are appropriate when the various parts of the disclosed embodiments are positioned as shown in the figures. However, if the position or reference frame of the disclosed embodiments changes, these expressions will also change accordingly.

[0041] like Figures 1 to 6 As shown, and reference Figures 8 to 12 According to a specific embodiment of the present invention, the mixer 100 for the mixing valve of the instant machine is suitable for being embedded in the horizontal water inlet portion 301 of the mixing valve 300 of the instant machine, and the outer contour of the mixing valve 100 is configured to be adapted to the circumferential inner wall 331 of the horizontal water inlet portion 301. Figures 1 to 6 As shown, the mixer 100 includes a partition body 1, a backward flow guide structure 3 located on the upper side of the partition body 1 and forming a backward flow guide area 32, a main stirring and mixing structure 5 located on the lower side of the partition body 1 and forming a main stirring and mixing area 52, a concentrated liquid through-port 4 set through the partition body 1 and connecting the backward flow guide area 3 and the main stirring and mixing area 5, and a positioning groove 11 (as a positioning structure) set at the front end of the partition body 1 for engaging with the front end wall of the horizontal water inlet 301, wherein the backward flow guide area 32 is used to guide the concentrated liquid 101 from the concentrated liquid inlet 305 of the instant mixing valve 300 to flow backward for a distance; the main stirring and mixing area 52 is used to stir and mix the concentrated liquid 101 and the drinking water 111 from the rear end of the horizontal water inlet 301 for multiple times to form a mixed liquid 121, and the main stirring and mixing area 52 is connected with the vertical liquid outlet 303 of the instant mixing valve 300.

[0042] like Figures 1 to 6 As shown, in this embodiment, the mixer 100 further includes a secondary stirring and mixing structure 7, which is located on the upper side of the separation body 1 and at the front end of the rear guide area 32, and is formed with a secondary stirring and mixing area 72 for secondary stirring and mixing of the mixed liquid from the main stirring and mixing area 52, wherein the separation body 1 is also provided with a mixed liquid through-port 6 that passes through the main stirring and mixing area 52 and the secondary stirring and mixing area 72, and the main stirring and mixing area 52 is connected to the vertical liquid outlet 303 of the current adjustment machine mixing valve 300 via the secondary stirring and mixing area 72.

[0043] like Figure 1 、 Figure 3 and Figure 4 As shown, in this embodiment, the backward guide structure 3 includes a front end stop 31 and a rear end stop 33, and the backward guide area 32 is formed between the front end stop 31 and the rear end stop 33, and the concentrated liquid through-port 4 is arranged close to the rear end stop 33, and the rear end stop 33 is arranged into an arc-shaped structure that arches backward. The rear end stop 33 of the arc structure can, on the one hand, isolate the concentrated liquid 101 and the drinking water 111 and cut off the backward flow of the concentrated liquid 101, and on the other hand, can reduce the stress caused by the impact of the concentrated liquid 101.

[0044] like Figure 1 、 Figure 2 、 Figure 4 and Figure 5As shown, in this embodiment, the main stirring and mixing structure 5 includes three stirring and mixing units 50. Each stirring and mixing unit includes a central stirring tooth 51 and a pair of side stirring teeth 53. Among them, in each stirring and mixing unit, the pair of side stirring teeth 53 and the central stirring tooth 51 are arranged at intervals in the front and rear. Side diversion spaces 510 are formed on both sides of the central stirring tooth 51. The pair of side stirring teeth 53 are symmetrically distributed relative to the central stirring tooth 51 and a central confluence space 530 is formed therebetween. Moreover, the concentrate through-port 4 is located on the front side of the central stirring tooth 51 of the last stirring and mixing unit 50 among the plurality of stirring and mixing units 50 in the front-rear direction. Although three stirring and mixing units 50 are provided in this embodiment, it should be understood that the number of the stirring and mixing units 50 can be adjusted as needed. As Figure 2 and Figure 5 most clearly shown, the central stirring tooth 51 is arranged in an arc arching backward, and the pair of side stirring teeth 53 are arranged facing forward and gradually opening to both sides.

[0045] Furthermore, as Figure 2 and Figure 5 shown, in this embodiment, the main stirring and mixing structure 5 further includes a front stop baffle 57. The front stop baffle 57 is respectively connected to the front ends of the pair of side stirring teeth 53 of the foremost stirring and mixing unit 50 among the plurality of stirring and mixing units 50, so that the mixed liquid formed after passing through the main stirring and mixing zone 52 is blocked in the confluence zone 520 between the front stop baffle 57 and the pair of side stirring teeth 53.

[0046] As Figure 3 clearly shown and referring to Figures 1 to 2 、 Figures 4 to 6 , in this embodiment, the mixed liquid through-port 6 is located between the front end stop 31 and the front stop baffle 57 in the front-rear direction.

[0047] Again, as Figure 3 shown, in this embodiment, the secondary stirring and mixing structure 7 includes a central stirring tooth 71 and a "field" - shaped stirring and draining port 73 located on the front side of the central stirring tooth 71. The central stirring tooth 71 is arranged in an arc arching backward, and is used to guide the mixed liquid from the mixed liquid through-port 6 to both sides and then forward into the "field" - shaped stirring and draining port 73.

[0048] It should be noted that, in this embodiment, the mixer 100 is integrally injection-molded. Additionally, as Figure 1 shown, the separation body 1 is horizontally arranged and has enclosing walls 10 extending upward from both side edges 12 of its upper surface. The side surface 12 and the enclosing walls 10 of the separation body 1 are arranged to fit the side parts of the circumferential inner wall 331 of the horizontal water inlet part 301 (see Figure 8 and Figure 10 ). Additionally, it should be understood that, in this embodiment, as Figure 1 、 Figure 4 and Figure 8 As shown, the heights of the front stopper 31, the rear stopper 33, and the central stirring teeth 71 are adapted to contact or loosely fit the top of the circumferential inner wall 331 of the horizontal water inlet 301; and the lower ends of the central stirring teeth 51 and the side stirring teeth 53 of the stirring and mixing unit 50 are adapted to contact or loosely fit the bottom of the circumferential inner wall 331 of the horizontal water inlet 301. It should be understood that this adaptive relationship between the mixer 100 and the horizontal water inlet 301 facilitates the insertion of the mixer 100 into the horizontal water inlet 301 of the instant mixer mixing valve 300, and ensures that the mixed liquid is thoroughly mixed with the drinking water before flowing out of the instant mixer mixing valve 300.

[0049] like Figures 7 to 12 As shown, according to another aspect of the present invention, a mixing valve 300 for a ready-mixed machine is provided, which includes a horizontal water inlet 301, a vertical liquid outlet 303 and a concentrate inlet 305, wherein the rear end of the horizontal water inlet 301 is suitable for inserting the mixing valve connecting pipe 200, and the pipe hole 210 of the mixing valve connecting pipe 200 is opposite to and connected with the main stirring and mixing zone 52 of the mixer 100, so that the drinking water from the mixing valve connecting pipe 200 is sent into the main stirring and mixing zone 52; the concentrate inlet 305 is connected to the horizontal water inlet 301 and has a concentrate inlet 315, so that the concentrate, such as various fruit pulps or vegetable juice concentrates, enters the rear guide area 32 of the mixer 100 in the horizontal water inlet 301 of the ready-mixed machine mixing valve 300 through the concentrate inlet 315. In this embodiment, the current-adjustable mixing valve 300 also includes the above-mentioned mixer 100, wherein a positioning rib 311 is provided on the front end wall of the horizontal water inlet 301 and is engaged with the positioning groove 11 on the mixer 200; the front end wall of the horizontal water inlet 301 is also provided with a positioning support rib 321 for supporting the partition body 1.

[0050] Reference below Figure 5 、 Figure 6 and Figure 12 and combined Figures 1 to 4 as well as Figures 7 to 11 The following describes the application of the mixer 100 of the present invention in the mixing valve 300 of the on-site mixing machine:

[0051] Insert the front end of the mixer 100 into the horizontal water inlet 301 from the rear end of the horizontal water inlet 301 of the mixing valve 300. When the front end of the mixer 100 reaches the front end of the horizontal water inlet 301, the front end of the mixer 100 is located above the positioning support rib 321 in the horizontal water inlet 301, and the positioning notch 11 of the mixer 100 is engaged with the positioning rib 311 in the horizontal water inlet 301 (see FIG. Figure 9 );

[0052] At this time, insert the mixing valve connecting pipe 200 into the horizontal water inlet portion 301, and make the front end thereof abut against the rear stopper 33 of the mixer 100. The pipe hole 210 of the mixing valve connecting pipe 200 is aligned with the main stirring and mixing area 52 of the mixer 100.

[0053] When the drinking water 111 from the mixing valve connecting pipe 200 encounters the central stirring tooth 51 of the stirring and mixing unit 50 at the rearmost side of the main stirring and mixing area 52 forward, it is diverted to both sides through the side diversion space 510 of the central stirring tooth 51 (see Figure 5 and Figure 12 the path indicated by L2);

[0054] Meanwhile, the concentrated liquid 101 entering the backward diversion area 32 of the mixer 100 through the concentrated liquid inlet 315 moves downward and backward along the path L1, and falls into the main stirring and mixing area 52 through the concentrated liquid through hole 4;

[0055] At this time, the drinking water 111 that has just entered the side diversion space 510 of the stirring and mixing unit 50 at the rearmost side of the main stirring and mixing area 52 entraps the concentrated liquid 101 falling into the main stirring and mixing area 52, moves forward, converges through the central convergence space 530 of the pair of side stirring teeth 53 of the rearmost stirring and mixing unit 50, enters the central stirring tooth 51 of the intermediate stirring and mixing unit 50, then is diverted and converges in sequence, and then enters the frontmost stirring and mixing unit 50. The mixed liquid 121 that continues to be diverted and converged enters the convergence area 520 between the front stopper plate 57 and the side stirring teeth 53. The entire stirring and mixing path of the mixed liquid 121 in the main stirring and mixing area 52 is as shown in Figure 5 and Figure 12 L3 in;

[0056] The mixed liquid 121 in the convergence area 520 enters the secondary stirring and mixing area 72 upward through the mixed liquid through hole 6 under the driving force of the subsequent forward movement of the mixed liquid in the main stirring and mixing area 52;

[0057] The mixed liquid 121 entering the secondary stirring and mixing area 72 is diverted to both sides through the central stirring tooth 71. The diverted mixed liquid converges again into the "field"-shaped stirring and draining port 73 for further diversion. The diverted mixed liquid directly enters the vertical liquid outlet portion 303 of the ready-to-drink machine mixing valve 300 and converges again. The entire stirring and mixing path of the mixed liquid 121 in the secondary stirring and mixing area 72 is as shown in Figure 6 and Figure 12 L4 in;

[0058] The converged mixed liquid 121 flows out from the vertical liquid outlet portion 303 and fills the cup, so that the drink is not stratified, has a uniform taste, and a stable sugar content.

[0059] It should be understood that, in this embodiment, an O-ring 201 is provided on the mixing valve connecting pipe 200 , so that when the mixing valve connecting pipe 200 is inserted into the horizontal water inlet portion 301 , the O-ring 201 plays a sealing role.

[0060] The technical content and technical features of the present invention have been disclosed above. However, it is understood that, based on the creative ideas of the present invention, those skilled in the art may make various changes and improvements to the above structure, including combinations of the technical features disclosed or claimed herein, as well as other combinations that clearly include these features. Such variations and / or combinations fall within the technical field involved in the present invention and fall within the scope of protection of the claims of the present invention.

Claims

1. A mixer for a mixing valve of a ready-mixed machine, characterized in that , The mixer is adapted to be embedded and installed in the horizontal water inlet part of the mixing valve of the dispenser, and its outer contour is set to fit the circumferential inner wall of the horizontal water inlet part. Among them, the mixer includes a separating body, a backward guiding structure located on the upper side of the separating body and forming a backward guiding area for guiding the concentrated liquid from the concentrated liquid inlet part of the mixing valve of the dispenser to flow backward for a certain distance, a main stirring and mixing structure located on the lower side of the separating body and forming a main stirring and mixing area for stirring and mixing the concentrated liquid and the drinking water from the rear end of the horizontal water inlet part multiple times, a concentrated liquid through hole penetrating the separating body and connecting the backward guiding area and the main stirring and mixing area, and a positioning structure provided at the front end of the separating body for clamping with the front end wall of the horizontal water inlet part. And among them, the main stirring and mixing area communicates with the vertical liquid outlet part of the mixing valve of the dispenser.

2. The mixer for a mixing valve of a ready-mixed machine according to claim 1, characterized in that: The mixer further includes a secondary stirring and mixing structure located on the upper side of the separating body, at the front end of the backward guiding area, and forming a secondary stirring and mixing area for stirring and mixing the mixed liquid from the main stirring and mixing area again. Among them, a mixed liquid through hole penetrating the main stirring and mixing area and the secondary stirring and mixing area is further provided on the separating body, and the main stirring and mixing area communicates with the vertical liquid outlet part of the mixing valve of the dispenser through the secondary stirring and mixing area.

3. The mixer for the mixing valve of the on-the-spot machine according to claim 2, characterized in that: The backward guiding structure includes a front stop and a rear stop. The backward guiding area is formed between the front stop and the rear stop. And the concentrated liquid through hole is arranged close to the rear stop, and the rear stop is set as an arc structure arched backward.

4. The mixer for a mixing valve of a ready-mixed machine according to claim 3, characterized in that: The main stirring and mixing structure includes a plurality of stirring and mixing units. Each stirring and mixing unit includes a central stirring tooth and a pair of side stirring teeth. Among them, in each stirring and mixing unit, the pair of side stirring teeth and the central stirring tooth are arranged at intervals front and rear. Side diversion spaces are formed on both sides of the central stirring tooth. The pair of side stirring teeth are symmetrically distributed relative to the central stirring tooth and a central confluence space is formed therebetween. And the concentrated liquid through hole is located on the front side of the central stirring tooth of the last stirring and mixing unit among the plurality of stirring and mixing units in the front-rear direction.

5. The mixer for a mixing valve of a ready-mixed machine according to claim 4, characterized in that: The central stirring tooth is set as an arc arched backward, and the pair of side stirring teeth are arranged forward and gradually open to both sides.

6. The mixer for a mixing valve of a ready-mixed machine according to claim 4, characterized in that: The main stirring and mixing structure further includes a front stop baffle, and the front stop baffle is respectively connected to the front ends of the pair of side stirring teeth of the foremost stirring and mixing unit among the plurality of stirring and mixing units, so that the mixed liquid formed after passing through the main stirring and mixing area is blocked between the front stop baffle and the pair of side stirring teeth.

7. The mixer for a mixing valve of a ready-mixed machine according to claim 6, characterized in that: The mixed liquid through hole is located between the front stop and the front stop baffle in the front-rear direction.

8. The mixer for a mixing valve of a ready-mixed machine according to claim 7, characterized in that: The secondary stirring and mixing structure includes a central stirring tooth and a "field" - shaped stirring and draining port located in front of the central stirring tooth. The central stirring tooth is set as an arc arched backward for guiding the mixed liquid from the mixed liquid through hole to both sides and then forward into the stirring and draining port.

9. The mixer for a mixing valve of a ready-mixed machine according to any one of claims 1 to 8, characterized in that: The mixer is formed by integral injection molding; the partition body is arranged horizontally and has surrounding walls extending upward from both side edges of its upper surface; and the positioning structure is a positioning notch.

10. A mixing valve for a ready-mixed machine, characterized in that It includes a mixer for a mixing valve of an on-the-spot machine as described in any one of claims 1 to 9, wherein the front end wall of the horizontal water inlet is provided with positioning ribs that are engaged with the positioning structure; the front end wall of the horizontal water inlet is also provided with positioning support ribs for supporting the partition body.

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