Flow regulation mechanism

Abstract

The utility model relates to a flow regulating mechanism. The flow adjusting mechanism comprises a shell, a fluid channel and a mounting channel which are communicated with each other are formed in the shell, and a limiting notch communicated with the mounting channel is formed in the shell. The movable part is movably arranged in the fluid channel; the eccentric part is arranged in the mounting channel, a limiting groove is formed in the eccentric part, the eccentric part is configured to move in the extending direction of the mounting channel so as to stretch into the fluid channel or break away from the mounting channel, and the eccentric part is configured to be used for being matched with the movable part so that the movable part can be driven to move in the fluid channel when the eccentric part rotates; therefore, the gap between the movable part and the inner wall of the fluid channel is changed. And the limiting piece is arranged in the limiting notch in a penetrating manner and extends into the limiting groove, so that the eccentric piece is limited in the extending direction of the mounting channel. The flow adjusting mechanism can achieve the flow adjusting function, and meanwhile the good disassembly and assembly convenience is achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of drinking equipment, in particular to a flow regulating mechanism. BACKGROUND

[0002] In the field of drinks, beer is a common drink, and cask beer is favored by more and more consumers due to its good taste. Cask beer is beer filled in a cask by a certain method, and a beer outlet faucet is arranged on the cask to control the on-off of beer outlet and regulate the flow of beer outlet. Therefore, the beer outlet faucet is usually provided with a corresponding flow regulating mechanism to realize the flow regulating function. When the beer outlet faucet is overhauled, the flow regulating mechanism needs to be disassembled to overhaul the inside of the flow regulating mechanism. However, the flow regulating mechanism in the related art is complicated to disassemble, which affects the overhaul efficiency. CONTENT OF THE UTILITY MODEL

[0003] Therefore, it is necessary to provide a flow regulating mechanism aiming at the above-mentioned technical problems.

[0004] A flow regulating mechanism, comprising:

[0005] a housing, the housing having a fluid channel and a mounting channel communicating with each other inside the housing, and the housing being provided with a limiting gap communicating with the mounting channel;

[0006] a movable member movably arranged in the fluid channel;

[0007] an eccentric member arranged in the mounting channel, the eccentric member being provided with a limiting slot, and the eccentric member being configured to move along the extension direction of the mounting channel to extend into the fluid channel or to be separated from the mounting channel, wherein the eccentric member is configured to cooperate with the movable member, so that the eccentric member drives the movable member to move in the fluid channel when the eccentric member rotates, thereby changing the gap between the movable member and the inner wall of the fluid channel;

[0008] a limiting member penetrating the limiting gap and extending into the limiting slot, thereby limiting the eccentric member in the extension direction of the mounting channel.

[0009] In one of the embodiments, the limiting member comprises a limiting part and a hand-held part, one end of the limiting part penetrating the limiting gap and extending into the limiting slot, and the other end of the limiting part being located outside the limiting gap and connected with the hand-held part.

[0010] In one of the embodiments, the limiting part has a first limiting protrusion and a second limiting protrusion, a clamping groove is formed between the first limiting protrusion and the second limiting protrusion, the first limiting protrusion and the second limiting protrusion are arranged in the limiting gap and extend into the limiting groove, the first limiting protrusion and the second limiting protrusion are respectively located on two sides of the eccentric part, so that the outer surface of the eccentric part is attached to the inner wall of the clamping groove.

[0011] In one of the embodiments, the distance between the first limiting protrusion away from one end of the handheld part and the second limiting protrusion away from one end of the handheld part gradually increases in the direction from the handheld part.

[0012] In one of the embodiments, the handheld part protrudes from the limiting part in the thickness direction of the limiting part.

[0013] In one of the embodiments, the limiting part further comprises a fixed part, the fixed part is connected to and protrudes from the limiting part, and the fixed part is used to extend into the limiting gap and connect with the shell through the limiting gap.

[0014] In one of the embodiments, the size of the limiting gap in the extension direction of the installation channel is equal to the size of the limiting groove in the extension direction of the installation channel.

[0015] In one of the embodiments, the eccentric part comprises a main shaft part and an eccentric part, the eccentric part is connected to the main shaft part, the eccentric part is used to cooperate with the movable part, the main shaft part is provided with the limiting groove and a sealing groove, and the sealing groove is located between the limiting groove and the eccentric part.

[0016] The flow regulating mechanism further comprises a sealing part, and the sealing part is arranged in the sealing groove.

[0017] In one of the embodiments, one end of the main shaft part away from the eccentric part is provided with a connecting hole, and the connecting hole is used to externally connect a handle to drive the main shaft part and the eccentric part to rotate.

[0018] In one of the embodiments, the center line of the connecting hole is collinear with the center line of the main shaft part.

[0019] The flow regulating mechanism has a limiting gap and a limiting slot respectively formed in the shell and the eccentric part, the eccentric part is rotatably fixed in the shell when the limiting part is inserted into the limiting gap and the limiting slot at the same time, the function of regulating flow is realized by the cooperation of the eccentric part and the movable part, the eccentric part is detached from the shell when the limiting part is pulled out from the limiting gap and the limiting slot, the eccentric part is conveniently detached, the flow regulating mechanism is conveniently overhauled, and the convenience of overhauling the wine outlet faucet is improved when the flow regulating mechanism is used to be installed on the wine outlet faucet. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a whole structure schematic view of the flow regulating mechanism of the embodiment of the application.

[0021] Figure 2 It is an exploded structure schematic view of the flow regulating mechanism of the embodiment of the application.

[0022] Figure 3 It is a sectional structure schematic view of the flow regulating mechanism of the embodiment of the application.

[0023] Figure 4 It is a structure schematic view of the limiting part of the embodiment of the application.

[0024] REFERENCE NUMERALS:

[0025] 10, flow regulating mechanism;

[0026] 100, shell; 110, fluid communication part; 111, fluid passage; 120, mounting part; 121, mounting passage; 122, limiting gap;

[0027] 200, movable part;

[0028] 300, eccentric part; 310, main shaft part; 311, limiting slot; 312, sealing slot; 313, connecting hole; 320, eccentric part;

[0029] 400, limiting part; 410, limiting part; 411, first limiting clamping convex; 412, second limiting clamping convex; 413, clamping slot; 420, hand holding part; 430, fixed part;

[0030] 500, sealing part. DETAILED DESCRIPTION

[0031] In order to make the above objectives, features and advantages of the present application more clear and comprehensible, the specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, the present application can be practiced in a number of different ways beyond the specific embodiments described herein and by one of ordinary skill in the art without departing from the spirit and scope of the present application, and it is therefore intended that all such variations be considered as falling within the scope of the present application. It should be understood that the use of the terms "include", "comprise" or "contain" herein should not be understood as limiting the present application to the features or steps described herein, but rather the use of these terms is intended to cover the presence of the features or steps described herein as well as the presence of other features or steps not described herein.

[0032] In the description of the present application, it should be understood that, if these terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and are not intended to indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0033] In addition, if these terms "first", "second" appear, these terms are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In the description of the present application, if the term "a plurality of" appears, the meaning of "a plurality of" is at least two, such as two, three, etc., unless otherwise explicitly specified and limited.

[0034] In the present application, unless otherwise explicitly specified and limited, if the terms "mount", "connect", "connect", "fix" and the like appear, these terms should be interpreted broadly. 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; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise explicitly limited. For those of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0035] In the present application, unless specifically defined and limited otherwise, if there is a description of a first feature "on" or "under" a second feature, etc., it can mean that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature "over", "above" and "on" the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "under", "below" and "under" the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0036] It should be noted that if an element is referred to as being "fixed" or "set" on another element, it can be directly on the other element or there can be an intermediate element. If an element is considered to be "connected" to another element, it can be directly connected to the other element or there can be an intermediate element. If present, the terms "vertical", "horizontal", "up", "down", "left", "right" and similar expressions used in the present application are for illustrative purposes only and do not represent the only implementation.

[0037] Referring to Figures 1 to 4 As shown in the structure diagram of the flow regulating mechanism 10 in the embodiment of the present application, the flow regulating mechanism 10 provided by the embodiment of the present application includes a housing 100, a movable element 200, an eccentric element 300 and a limiting element 400. The flow regulating mechanism 10 can realize the flow regulating function and has good disassembly convenience. For example, when the flow regulating mechanism 10 is used to be installed on a wine tapping faucet, the disassembly of the wine tapping faucet can be more convenient, and the convenience of the maintenance of the wine tapping faucet is improved.

[0038] The housing 100 forms the outer contour of the flow regulating mechanism 10 to protect the internal movable element 200, eccentric element 300 and other components. The housing 100 can be used to be installed on the wine tapping faucet or connected with the outer shell of the wine tapping faucet as a whole. Specifically, the housing 100 has a fluid passage 111 and a mounting passage 121 which are in communication with each other inside. The fluid passage 111 is used for passing fluid, such as wine or other beverages. One end of the mounting passage 121 is in communication with the side of the fluid passage 111, and the other end of the mounting passage 121 is in communication with the external environment for mounting the eccentric element 300. The housing 100 is provided with a limiting notch 122 which is in communication with the mounting passage 121 and penetrates the side wall of the housing 100.

[0039] The movable member 200 is arranged inside the housing 100 and is used to adjust the flow rate in cooperation with the housing 100 and the eccentric member 300. Specifically, the movable member 200 is movably arranged in the fluid channel 111. For example, the movable member 200 can be arranged in a structure that is free to extend and retract along the extension direction of the fluid channel 111.

[0040] The eccentric member 300 is movably arranged in the mounting channel 121 of the housing 100, so that the eccentric member 300 can move along the extension direction of the mounting channel 121 to extend into the fluid channel 111 or disengage from the mounting channel 121, while the eccentric member 300 can rotate in the mounting channel 121. The eccentric member 300 is provided with a limiting groove 311, and the eccentric member 300 is configured to cooperate with the movable member 200, so that when the eccentric member 300 rotates, the movable member 200 is driven to move in the fluid channel 111, thereby changing the gap between the movable member 200 and the inner wall of the fluid channel 111. Specifically, the eccentric member 300 can extend into the fluid channel 111 through the mounting channel 121 and cooperate with the movable member 200 in the fluid channel 111. When an external force is applied to the eccentric member 300 to make the eccentric member 300 rotate, the eccentric member 300 can drive the movable member 200 to move through the eccentric effect, so that the gap between the movable member 200 and the inner wall of the fluid channel 111 changes, i.e., the size of the space between the movable member 200 and the inner wall of the fluid channel 111 changes, so that the flow rate of the fluid flowing through the fluid channel 111 changes, thereby achieving the function of adjusting the flow rate. It should be noted that the cooperation mode of the eccentric member 300 and the movable member 200 can adopt the existing connection mode, which is not limited in the embodiments of the present application.

[0041] The limiting member 400 is arranged in the limiting gap 122 and extends into the limiting groove 311, thereby limiting the movement of the eccentric member 300 in the extension direction of the mounting channel 121. For example, when it is necessary to limit the movement of the eccentric member 300 by using the limiting member 400, the eccentric member 300 is first sent into the mounting channel 121 until the limiting groove 311 on the eccentric member 300 is aligned with the limiting gap 122 on the housing 100, and then the limiting member 400 is inserted into the limiting gap 122 and the limiting groove 311 at the same time, so that the limiting member 400 passes through the limiting gap 122 and is partially embedded in the limiting groove 311, thereby limiting the movement of the eccentric member 300 in the extension direction of the mounting channel 121, while the eccentric member 300 can freely rotate in the mounting channel 121.

[0042] Through the above structural design, when the flow needs to be adjusted, the eccentric part 300 is forced to rotate and drive the movable part 200 to move in the fluid channel 111, so as to change the position of the movable part 200 in the fluid channel 111, and then the gap between the movable part 200 and the side wall of the fluid channel 111 can be changed, so as to realize the flow adjustment function. Moreover, when the flow adjustment mechanism 10 is assembled, the eccentric part 300 is inserted into the shell 100, so that the eccentric part 300 is connected with the movable part 200, and at the same time, the limiting groove 311 on the eccentric part 300 is arranged opposite to the limiting notch 122 on the shell 100. At this time, only the limiting part 400 needs to be inserted through the limiting notch 122 and partially embedded in the limiting groove 311, so that the limiting part 400 can limit the movement of the eccentric part 300 along the extension direction of the installation channel 121, so that the eccentric part 300 is rotatably arranged in the shell 100. When the flow adjustment mechanism 10 is disassembled and repaired, only the limiting part 400 needs to be pulled out of the limiting groove 311 and the limiting notch 122, so that the limiting part 400 releases the limitation of the eccentric part 300, and then the eccentric part 300 can be taken out of the shell 100.

[0043] Therefore, the flow adjustment mechanism 10 of the embodiment of the application is arranged in the shell 100 and the eccentric part 300, respectively, and the limiting notch 122 and the limiting groove 311 are arranged in the shell 100 and the eccentric part 300, respectively. When the limiting part 400 is inserted into the limiting notch 122 and the limiting groove 311 at the same time, the eccentric part 300 can be rotatably fixed in the shell 100, so as to realize the flow adjustment function through the cooperation of the eccentric part 300 and the movable part 200. When the limiting part 400 is pulled out of the limiting notch 122 and the limiting groove 311, the eccentric part 300 can be disassembled from the shell 100, so that the eccentric part 300 is convenient to disassemble, the flow adjustment mechanism 10 is convenient to repair, and the convenience of repairing the wine outlet faucet can be improved when the flow adjustment mechanism 10 is used to install the wine outlet faucet.

[0044] Reference Figures 1 to 3As shown, in some embodiments, the shell 100 comprises a fluid communication part 110 and a mounting part 120, the fluid communication part 110 is connected with the mounting part 120, the fluid communication part 110 has a fluid passage 111 inside, the mounting part 120 has a mounting passage 121 inside, the mounting part 120 is provided with a limiting gap 122, and the mounting passage 121 communicates with one side of the fluid passage 111. Exemplarily, the fluid communication part 110 can be used to be mounted on a wine faucet or integrated with the shell of the wine faucet, so that the fluid passage 111 inside the fluid communication part 110 communicates with the internal passage of the wine faucet, thereby realizing the functions of conveying wine and adjusting the flow of wine. The mounting part 120 is arranged at one side of the fluid communication part 110, so that the mounting passage 121 inside the mounting part 120 communicates with one side of the fluid passage 111 inside the fluid communication part 110. The mounting part 120 has a general tubular structure, and the mounting part 120 is provided with a semicircular limiting gap 122. The limiting gap 122 is located at the side of the mounting part 120 away from the fluid communication part 110, so as to shorten the length of the mounting part 120 as much as possible, so that the overall structure is compact. Correspondingly, the eccentric part 300 is arranged in a general cylindrical structure and is arranged in the mounting passage 121, for example, the eccentric part 300 can be arranged as an eccentric shaft. The eccentric part 300 is correspondingly provided with a limiting groove 311 in the form of a ring, so that the limiting part 400 inserted into the limiting groove 311 does not hinder the rotation of the eccentric part 300.

[0045] Referring to Figures 1 to 4 As shown, in some embodiments, the limiting part 400 comprises a limiting part 410 and a hand holding part 420, one end of the limiting part 410 is arranged in the limiting gap 122 and extends into the limiting groove 311, and the other end of the limiting part 410 is located outside the limiting gap 122 and is connected with the hand holding part 420. Specifically, when the limiting part 400 is used to limit the eccentric part 300, the limiting part 410 passes through the limiting gap 122 and is partially embedded in the limiting groove 311, and at this time the hand holding part 420 is located outside the mounting part 120. Therefore, the operator can hold the hand holding part 420, so as to insert or pull out the limiting part 410 from the limiting gap 122 and the limiting groove 311, so that the insertion and pulling out of the limiting part 400 is convenient and efficient.

[0046] Exemplarily, in some embodiments, the hand holding part 420 protrudes from the limiting part 410 in the thickness direction of the limiting part 410. Among them, the thickness direction of the limiting part 410 is parallel to the extension direction of the fluid passage 111. In this way, it is more convenient for the operator to hold the hand holding part 420, so that the insertion and pulling out of the limiting part 400 is more convenient.

[0047] Referring to Figure 4As shown, in some embodiments, the limiting part 410 has a first limiting protrusion 411 and a second limiting protrusion 412, and an arc-shaped clamping groove 413 is formed between the first limiting protrusion 411 and the second limiting protrusion 412. The first limiting protrusion 411 and the second limiting protrusion 412 are arranged in the limiting gap 122 and extend into the limiting groove 311. The first limiting protrusion 411 and the second limiting protrusion 412 are respectively arranged on two sides of the eccentric part 300, so that the outer surface of the eccentric part 300 is in close contact with the inner wall of the clamping groove 413. Thus, when the limiting part 400 passes through the limiting gap 122 and is partially embedded in the limiting groove 311, the eccentric part 300 is simultaneously embedded in the clamping groove 413, so that the eccentric part 300 is closely connected with the limiting part 400, the stability of the limiting part 400 limiting the eccentric part 300 is improved, and the rotation of the eccentric part 300 is not hindered.

[0048] In some embodiments, the distance between the end of the first limiting protrusion 411 away from the handheld part 420 and the end of the second limiting protrusion 412 away from the handheld part 420 gradually increases along the direction from the handheld part 420 to the far end. Continue to refer to Figure 4 As shown, an opening is formed between the end of the first limiting protrusion 411 away from the handheld part 420 and the end of the second limiting protrusion 412 away from the handheld part 420. The size of the opening gradually decreases towards the clamping groove 413 until the opening is in communication with the clamping groove 413, so that the eccentric part 300 is embedded in the clamping groove 413 through the opening.

[0049] Optionally, the limiting part 400 can be made of a flexible material such as a plastic material, which has a low cost, and the first limiting protrusion 411 and the second limiting protrusion 412 have sufficient flexibility to facilitate the mutual clamping or mutual disengagement of the limiting part 400 and the eccentric part 300.

[0050] In some embodiments, the limiting part 400 further includes a fixing part 430 connected to and protruding from the limiting part 410. The fixing part 430 is used to extend into the limiting gap 122 and connect with the shell 100 through the limiting gap 122. Exemplarily, refer to Figure 4 As shown, the fixing part 430 is protrudingly arranged on both sides of the limiting part 410. When the limiting part 400 is inserted into the limiting gap 122 and the limiting groove 311, the fixing part 430 is embedded in the limiting gap 122 and abuts against the bottom of the limiting gap 122. At this time, the fixing part 430 of the limiting part 400 abuts against the mounting part 120 of the shell 100, so that the limiting part 400 does not rotate with the eccentric part 300, and the stability of the limiting part 400 is improved.

[0051] Refer to Figure 3As shown, in some embodiments, the size of the limiting gap 122 in the extension direction of the mounting channel 121 is equal to the size of the limiting groove 311 in the extension direction of the mounting channel 121. Wherein, the extension direction of the mounting channel 121 is the horizontal direction in the view angle. Specifically, the width of the limiting gap 122 is the same as the width of the limiting groove 311, so that the limiting gap 122 can be accurately aligned with the limiting groove 311, so as to facilitate the insertion of the limiting member 400 into the limiting gap 122 and the limiting groove 311 at the same time, and thus the mounting portion 120 can better limit the eccentric member 300 through the limiting member 400, improving the installation stability of the eccentric member 300.

[0052] In some embodiments, the eccentric member 300 includes a main shaft portion 310 and an eccentric portion 320, the eccentric portion 320 is connected with the main shaft portion 310, the eccentric portion 320 is used to cooperate with the movable member 200, the main shaft portion 310 is provided with a limiting groove 311 and a sealing groove 312, the sealing groove 312 is located between the limiting groove 311 and the eccentric portion 320; the flow adjusting mechanism 10 further includes a sealing member 500, the sealing member 500 is arranged in the sealing groove 312. Exemplarily, refer to Figure 2 and Figure 3 As shown, the outer shape of the main shaft portion 310 is cylindrical, the axial direction of the main shaft portion 310 is parallel to the extension direction of the mounting channel 121, and the eccentric portion 320 is arranged eccentrically relative to the axial direction of the main shaft portion 310. When the main shaft portion 310 rotates to drive the eccentric portion 320 to rotate, the movable member 200 can be driven to move in the fluid channel 111 through the eccentric portion 320, realizing the flow adjusting function. The main shaft portion 310 is provided with a limiting groove 311, which is used to cooperate with the limiting member 400 for limiting. The main shaft portion 310 is also provided with two sealing grooves 312, which are arranged in the axial direction and located between the limiting groove 311 and the eccentric portion 320. The sealing grooves 312 are each filled with a sealing member 500, for example, the sealing member 500 can be a sealing ring, and the sealing member 500 is in close contact with the inner circumferential wall of the sealing groove 312. Through the cooperation of the sealing member 500 and the sealing groove 312, the fluid such as wine in the fluid channel 111 can not leak from the mounting channel 121, ensuring the sealing between the main shaft portion 310 and the inner wall of the mounting channel 121.

[0053] It can be understood that in other optional embodiments, the number of the sealing grooves 312 and the sealing members 500 is not limited to two, for example, the number of the sealing grooves 312 and the sealing members 500 can also be one, three, four or more.

[0054] In some embodiments, the end of the main shaft portion 310 away from the eccentric portion 320 is provided with a connecting hole 313, the connecting hole 313 is used to externally connect a handle to drive the main shaft portion 310 and the eccentric portion 320 to rotate. Refer to Figures 1 to 3As shown, one end of the main shaft part 310 extends into the installation channel 121 and is connected with the eccentric part 320, and the other end of the main shaft part 310 extends out of the housing 100 and is provided with a connecting hole 313. For example, the connecting hole 313 can be a hexagonal hole, which can be inserted with a hexagonal part of a handle, and in use, only the hexagonal part of the handle needs to be embedded into the hexagonal hole, and then the eccentric part 300 can be rotated by the handle, which is convenient to operate.

[0055] Further, in some embodiments, the center line of the connecting hole 313 is collinear with the center line of the main shaft part 310. That is, the center line of the connecting hole 313 is collinear with the axis of the eccentric part 300, so that the length of the eccentric part 300 can be shortened as much as possible, and the structure of the flow regulating mechanism 10 is more compact.

[0056] The technical features of the above embodiments can be combined arbitrarily. In order to make the description simple, all possible combinations of the technical features in the above embodiments are not described, however, as long as the combinations of the technical features do not contradict, they should be considered as the scope of the present application.

[0057] The above embodiments only express several implementation manners of the present application, and the description is specific and detailed, but it should not be understood as a limitation on the patent scope of the application. It should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are all within the protection scope of the present application. Therefore, the patent protection scope of the present application should be subject to the appended claims.

Claims

1. A flow regulating mechanism, characterized by, The flow regulating mechanism comprises: a housing having a fluid passage and a mounting passage inside and communicating with each other, the housing being provided with a limiting gap communicating with the mounting passage; a movable member movably arranged in the fluid passage; an eccentric member arranged in the mounting passage, the eccentric member being provided with a limiting slot and being configured to move along the extension direction of the mounting passage to extend into the fluid passage or to be separated from the mounting passage, wherein the eccentric member is configured to cooperate with the movable member so that the eccentric member drives the movable member to move in the fluid passage when the eccentric member rotates, thereby changing the gap between the movable member and the inner wall of the fluid passage; a limiting member penetrating the limiting gap and extending into the limiting slot, thereby limiting the eccentric member in the extension direction of the mounting passage.

2. The flow regulating mechanism of claim 1, wherein, The limiting member comprises a limiting portion and a hand-held portion, one end of the limiting portion penetrating the limiting gap and extending into the limiting slot, and the other end of the limiting portion being located outside the limiting gap and connected with the hand-held portion.

3. The flow regulating mechanism of claim 2, wherein, The limiting portion has a first limiting lug and a second limiting lug, a clamping groove being formed between the first limiting lug and the second limiting lug, the first limiting lug and the second limiting lug penetrating the limiting gap and extending into the limiting slot, and the first limiting lug and the second limiting lug being respectively located on both sides of the eccentric member so that the outer surface of the eccentric member is fitted with the inner wall of the clamping groove.

4. The flow regulating mechanism of claim 3, wherein, The distance between the end of the first limiting lug away from the hand-held portion and the end of the second limiting lug away from the hand-held portion gradually increases in the direction away from the hand-held portion.

5. The flow regulating mechanism of claim 2, wherein, The hand-held portion protrudes from the limiting portion in the thickness direction of the limiting portion.

6. The flow regulating mechanism of claim 2, wherein, The limiting member further comprises a fixing portion connected with and protruding from the limiting portion, the fixing portion being used to extend into the limiting gap and connect with the housing through the limiting gap.

7. The flow regulating mechanism of claim 1, wherein, The size of the limiting gap in the extension direction of the mounting passage is equal to the size of the limiting slot in the extension direction of the mounting passage.

8. The flow regulating mechanism of any one of claims 1-7, wherein, The eccentric member comprises a main shaft portion and an eccentric portion, the eccentric portion being connected with the main shaft portion, the eccentric portion being used to cooperate with the movable member, the main shaft portion being provided with the limiting slot and a sealing slot, the sealing slot being located between the limiting slot and the eccentric portion; The flow regulating mechanism further comprises a sealing member arranged in the sealing slot.

9. The flow regulating mechanism of claim 8, wherein, The end of the main shaft portion away from the eccentric portion is provided with a connecting hole, the connecting hole being used to externally connect a handle to drive the main shaft portion and the eccentric portion to rotate.

10. The flow regulating mechanism of claim 9, wherein, The center line of the connecting hole is collinear with the center line of the main shaft portion.

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