A valve body, static sheet, dynamic sheet and passage valve

Abstract

This utility model discloses a valve body, a stationary plate, a moving plate, and a passage valve, belonging to the field of passage valves. It includes a valve housing; an inner cylinder disposed within the valve housing; a first pipe with one end connected to the inner cylinder and the other end extending outward through the valve housing; a passageway formed between the inner wall of the valve housing and the outer wall of the inner cylinder; a flow channel opened inside the inner cylinder, with its axial end face penetrating through it, the flow channel connecting to the passageway via the penetrating surface, and correspondingly connected to the first pipe; and a notch opened on the outer circumferential surface of the inner cylinder, which is part of the passageway. This utility model provides a larger redundant space within the valve body by opening a notch in the inner cylinder, allowing impurities entering the valve body a greater range of motion and increasing the water flow rate to flush away impurities. This prevents small impurities from accumulating in blind areas within the valve body and causing blockages. For larger impurities, the opposing rotation of the stationary and moving plates allows impurities stuck between the stationary and moving plates to be squeezed by the moving plate and pushed out through the notch.

Description

Technical Field

[0001] This utility model relates to the field of passage valve technology, and in particular to a valve body, a stationary plate, a moving plate, and a passage valve. Background Technology

[0002] A multi-way valve is a key component used to control the switching or distribution of fluid between multiple channels, and it is widely used in many fields such as HVAC, water treatment, industrial process control, medical devices, and irrigation. Traditional multi-way valves, such as plug valves or ball valves, typically achieve the opening and closing of the flow path by rotating a single valve core (such as a conical plug, cylindrical plug, or ball) to align or offset the flow passage holes on the valve body.

[0003] Currently, some multi-channel valves have begun to adopt a design that combines stationary and moving plates. By having two moving plates make mirror-sealed contact and rotate in opposite directions, different through holes on the stationary and moving plates are connected to realize the opening and closing of each water passage of the valve and the control of the water flow of each passage. For example, a valve device disclosed in Chinese patent CN112780800A.

[0004] However, when the fluid contents are complex, such as when the fluid contains impurities such as mud, stones, branches, crop roots, mulch, or aquatic plants, the current passage valve is prone to accumulating in certain blind areas and causing blockage. For example, when the fluid contains impurities that are difficult to cut, such as stones, thick branches, or plastic film, the impurities may get stuck in the counter-rotation space of the stationary and moving plates, which may cause the passage valve to become blocked. Utility Model Content

[0005] In view of this, the present invention proposes a valve body, a stationary plate, a moving plate, and a passage valve to solve the problem that current passage valves are prone to clogging and stalling when the fluid contents are complex.

[0006] The technical solution of this utility model is implemented as follows: This utility model provides a valve body, including a valve shell, which is hollow inside; an inner cylinder, which is disposed inside the valve shell; at least one first pipe, one end of which is connected to the inner cylinder and the other end of which extends outward through the valve shell; wherein, the inner wall of the valve shell and the outer wall of the inner cylinder form a passage; at least one flow channel is opened inside the inner cylinder, at least one axial end face of the inner cylinder is through, the flow channel is connected to the passage through the through surface, and at least one flow channel is connected to at least one first pipe in a one-to-one correspondence; at least one notch is opened on the outer circumferential surface of the inner cylinder, and the notch is part of the passage.

[0007] Based on the above technical solutions, preferably, two flow channels are opened inside the inner cylinder; there are two first pipes that are connected to the two flow channels in a one-to-one correspondence; and a notch or two notches are opened symmetrically on the outer circumference of the inner cylinder.

[0008] Based on the above technical solutions, preferably, the inner cylinder has four flow channels; the first pipe has four channels and is connected to the four flow channels in a one-to-one correspondence; the outer circumference of the inner cylinder has two symmetrically opened notches, which divide the four flow channels into two groups equally.

[0009] Based on the above technical solutions, preferably, it also includes a second pipe, which is disposed on the outer peripheral wall of the valve body and communicates with the inside of the valve body, wherein the axial direction of the second pipe is located in the same plane as the axial direction of at least one first pipe, and the communicating end of the second pipe with the inside of the valve body is aligned with the notch.

[0010] Secondly, this utility model also provides a stationary plate for cooperating with the valve body described above. The stationary plate is attached to the through surface of the inner cylinder. At least one first notch is provided on the stationary plate, and the first notch is correspondingly provided with the notch portion. Through holes are provided inside the stationary plate, and the number of through holes is the same as the number of flow channels connected to the through surface of the inner cylinder.

[0011] Based on the above technical solutions, preferably, when one or two through holes are opened in the stationary plate, a first notch is opened on the stationary plate.

[0012] Based on the above technical solutions, preferably, when two or four through holes are opened in the stationary plate, two first notches are symmetrically opened on the stationary plate, and the two first notches equally divide the two or four through holes (502) into two groups.

[0013] Thirdly, this utility model also provides a movable piece for cooperating with the aforementioned stationary piece, wherein the movable piece and the stationary piece are in mirror-sealed contact on the surface away from the inner cylinder; the movable piece is provided with at least one second notch, and when the movable piece rotates to the position of blocking the first notch, the second notch is connected to at least one through hole.

[0014] Based on the above technical solutions, preferably, when one, two, or four through holes are opened in the stationary plate, a second notch is opened on the moving plate.

[0015] Based on the above technical solutions, preferably, when the stationary plate has four through holes, the moving plate has two second notches symmetrically opened.

[0016] Fourthly, this utility model also provides a passage valve, which adopts the above-mentioned valve body and further includes a stationary plate and a moving plate. The stationary plate is attached to the through surface of the inner cylinder, and the moving plate and the surface of the stationary plate away from the inner cylinder are in mirror-sealed contact. The stationary plate and the moving plate are coaxially arranged, and the moving plate rotates relative to the stationary plate.

[0017] The valve body, stationary plate, moving plate, and passage valve of this utility model have the following advantages over the prior art: (1) The present invention provides a notch in the inner cylinder of the valve body, which provides a large redundant space inside the valve body, allowing impurities entering the valve body to have a large range of movement and increasing the water flow rate into the valve body to flush away impurities. This prevents small impurities from accumulating in large quantities in certain blind areas of the valve body and causing blockage. For larger impurities, the moving and stationary plates can rotate to squeeze the impurities stuck between the moving and stationary plates and push them out from the notch, thereby avoiding the risk of blockage of the passage valve.

[0018] (2) The present invention has notches on the stationary and moving plates respectively, which can cut some impurities by rotating the stationary and moving plates. The cut impurities will not remain in the notch and will be easily discharged with the fluid, which greatly reduces the blockage rate of the passage valve.

[0019] (3) This utility model has notches on the stationary and moving pieces respectively. When mass-producing the stationary and moving pieces, the notches on the pieces can be used to stagger the arrangement of the stationary or moving pieces, so that the area occupied by the same number of stationary and moving pieces is smaller, thereby greatly improving the mass production efficiency of stationary and moving pieces and reducing costs. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a perspective view of the four-way valve of this utility model; Figure 2 This is a top view of the valve body anti-blocking principle of this utility model, where a is the present solution and b is the conventional solution; Figure 3 This is a top view of another scenario regarding the valve body anti-blocking principle of this utility model, where in scenario a, no blocking occurs, and in scenario b, blocking has already occurred. Figure 4 This is a perspective view of the three-way valve of this utility model; Figure 5 This is a perspective view of another embodiment of the three-way valve of this utility model; Figure 6 This is a perspective view of the five-way valve of this utility model, wherein a is a perspective view of the overall structure, b is a perspective view of the valve body and the stationary plate in cooperation, c is a perspective view of the valve body, the stationary plate and the moving plate in cooperation, and d is a perspective view of another embodiment of the valve body, the stationary plate and the moving plate in cooperation. Figure 7The diagram shows top views of existing stationary valves in various implementation scenarios, where a is used for a straight-through valve, b is used for a three-way or four-way valve, c is used for a three-way or four-way valve, and d is used for a five-way valve. Figure 8 The following are top views of the stationary plate of this utility model in various implementation scenarios, where a is used for a straight-through valve, b is used for a three-way valve or a four-way valve, c is used for a three-way valve or a four-way valve, and d is used for a five-way valve. Figure 9 The diagram shows top views of existing moving parts in various implementation scenarios, where a is used for a straight-through valve, b is used for a three-way or four-way valve, c is used for a three-way or four-way valve, d is used for a five-way valve, and e is another implementation method for a five-way valve. Figure 10 The following are top views of the moving piece of this utility model in various implementation scenarios, where a is used for a straight-through valve, b is used for a three-way valve or a four-way valve, c is used for a three-way valve or a four-way valve, d is used for a five-way valve, and e is another implementation for a five-way valve. Figure 11 This is a comparative diagram showing the mass production of existing still sheets and the still sheet of this invention.

[0022] In the diagram: 1. Valve housing; 100. Passageway; 2. Inner cylinder; 201. Notch; 202. Flow channel; 3. First pipe; 4. Second pipe; 5. Stationary plate; 501. First notch; 502. Through hole; 601. Second notch. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0024] In the description of the embodiments of the present invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of the present invention based on the specific circumstances.

[0025] In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of the present invention.

[0026] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0027] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0028] The following disclosure provides numerous different embodiments or examples for implementing various structures of the invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the invention. Furthermore, reference numerals and / or letters may be repeated in different examples. Such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. Additionally, examples of various specific processes and materials are provided in this invention; however, those skilled in the art will recognize the applicability of other processes and / or the use of other materials.

[0029] like Figure 1 As shown, combined with Figure 2 and Figure 5 The present invention provides a valve body comprising a valve shell 1, an inner cylinder 2, and a first pipe 3.

[0030] The valve body 1 is hollow inside. Both the valve body 1 and the inner cylinder 2 are made of metal, high-strength plastic, or ceramic. The valve body 1 and the inner cylinder 2 are integrally formed. A passage 100 is formed between the inner wall of the valve body 1 and the outer wall of the inner cylinder 2, and the fluid entering the valve body will first be stored in the passage 100.

[0031] The inner cylinder 2 is disposed inside the valve body 1. The inner cylinder 2 is generally cylindrical and located at the center of the valve body 1. A valve shaft is inserted through the inner cylinder 2 at the position of the central axis. At least one flow channel 202 is opened inside the inner cylinder 2. At least one axial end face of the inner cylinder 2 is through it. The flow channel 202 is connected to the passage 100 through the through surface. At least one flow channel 202 is connected to at least one first pipe 3 in a one-to-one correspondence.

[0032] The inner cylinder 2 of a traditional passage valve body is generally a cylindrical core, such as... Figure 2 As shown in (b), this results in impurities entering the valve body 1 with the fluid only being able to move along the circular passage 100 around the inner cylinder 2. The passage 100 is sandwiched between the outer wall of the inner cylinder 2 and the inner wall of the valve body 1, and its width is very narrow, making it easy for impurities to get stuck and blockage. At the same time, in addition to the flow channel 202 used for outputting fluid, the inner cylinder 2 also has a blind hole area that is not connected to the outside (see...). Figure 2 (b) The small fan-shaped area within the inner cylinder 2 is enclosed by the dotted line), impurities (see...) Figure 2 Once the circular area filled with shading in the middle diagonal line enters this blind hole area, it is difficult to be flushed out by the water flow when the external fluid continues to enter the valve body 1. This causes excessive accumulation of impurities in the blind hole area, which will hinder the rotation of the moving plate 6 (and also wear the surface of the moving plate 6), thus causing blockage and stall.

[0033] Therefore, in this embodiment, as Figure 2 As shown in (a), at least one notch 201 is provided on the outer circumferential surface of the inner cylinder 2, making the radial cross-section of the inner cylinder 2 fan-shaped. The notch 201 is part of the passage 100. At this time, the blind hole area inside the inner cylinder 2 is eliminated. Even if impurities enter the notch 201, they will not be obstructed and will be easily flushed away with the fluid. At the same time, the notch 201 also increases the width of the passage 100 at this position. The fluid enters the wider area here from the previous narrow area, which will cause the fluid to form a high-pressure area to low-pressure area flow channel, thereby indirectly increasing the fluid velocity and further improving the effect of the fluid flushing the area where the notch 201 is located, thus greatly reducing the risk of blockage inside the valve body.

[0034] At least one first pipe 3 is connected at one end to the inner cylinder 2 and extends outward through the valve body 1 at the other end. The first pipe 3 and the flow channel 202 connected thereto essentially form a water outlet passage of the valve body, and the outer end of the first pipe 3 is connected to a water supply pipeline.

[0035] It should be noted that, Figure 1 The diagram shows a four-way valve. In this valve body, a large gap is left between the inner cylinder 2 and the inner wall of the valve housing 1, so that impurities in the notch 201 can pass through smoothly. Figure 2 (a) shows the movement to the side into aisle 100; but Figure 5The diagram shows a three-way valve. The gap between the inner cylinder 2 and the inner wall of the valve shell 1 is very narrow (or even non-existent; in other words, it can be considered that the inner cylinder 2 does not exist in the valve shell 1). Traditional valve bodies have a wall on the outside of the notch 2, creating a fan-shaped blind zone inside the valve body. However, this embodiment still uses a notch 2 on the outer wall of the inner cylinder 2. Although there is no redundant space for impurities in the notch 2 to move to the side, the function of the notch 2 is to eliminate the blind zone inside the valve body, allowing the water flow in that space to move (in traditional valve bodies, the water in the blind zone is basically still because it is enclosed). This allows the impurities to be carried away, preventing them from accumulating in the blind zone. Therefore, although the anti-clogging effect of this type of valve body is not ideal, its actual effect is still better than that of traditional through valves.

[0036] exist Figure 4 In one embodiment shown, the inner cylinder 2 has two flow channels 202; the first pipe 3 has two pipes, each corresponding to one of the two flow channels 202; the outer circumferential surface of the inner cylinder 2 has one notch 201 or two symmetrically arranged notches 201. For example, Figure 4 The valve body has two flow channels 202, thus this type of valve body is a three-way valve, with two outlets on the left and right sides of the two first pipes 3, and each flow channel 202 has a fan-shaped diameter of 90°. Two notches 201 are opened on the inner cylinder 2, so that the overall structure of the inner cylinder 2 is centrally symmetrical and mirror symmetrical. This not only facilitates the mass production of the valve body, but also further expands the flow space inside the valve body, thereby reducing the valve body blockage rate.

[0037] exist Figure 6 In one embodiment shown, the inner cylinder 2 has four flow channels 202; the first pipe 3 has four pipes, each corresponding to one of the four flow channels 202; the outer circumference of the inner cylinder 2 has two symmetrically opened notches 201, which divide the four flow channels 202 into two groups. For example Figure 6 As shown, the valve body has four flow channels 202, therefore this type of valve body is a five-way valve, with two outlets on each of the four first pipes 3, for a total of four outlets. Additionally, the valve body can have more passages, but generally, the number of outlet passages in the valve body is even. In this case, if only one notch 201 is opened on the outer wall of the inner cylinder 2, the notch 201 will... Figure 1 As shown, the notch 201 is fan-shaped and sandwiched between two flow channels 202.

[0038] exist Figure 1In one embodiment shown, a second pipe 4 is also included. The second pipe 4 is disposed on the outer peripheral wall of the valve housing 1 and communicates with the interior of the valve housing 1. The axial direction of the second pipe 4 is coplanar with the axial direction of at least one first pipe 3. This type of valve body is a flat valve body, in which the second pipe 4, serving as the water inlet passage, is coplanar and at the same height as each of the first pipes 3 in the water outlet passages. In this case, the connecting end of the second pipe 4 to the interior of the valve housing 1 is aligned with the notch 201, which can expand the accommodating space of the water inlet area inside the valve body, increasing the water inlet flow rate and speed per unit time. The valve body can also be made of, for example... Figure 6 The vertical valve body shown has its second pipe 4, which serves as the water inlet passage, and its first pipe 3, which serves as the water outlet passage, arranged perpendicularly.

[0039] like Figure 8 As shown, combined with Figure 7 This utility model provides a stationary plate 5 for use with the valve body of any of the above embodiments. The stationary plate 5 is attached to the through surface of the inner cylinder 2. The main function of the stationary plate 5 is to cooperate with the moving plate 6 to form a mirror-sealed structure. At least one first notch 501 is provided on the stationary plate 5, and the first notch 501 corresponds to the notch portion 201, so that the stationary plate 5 does not obstruct the discharge of impurities. Through holes 502 are provided inside the stationary plate 5, and the number of through holes 502 is the same as the number of flow channels 202 connected to the through surface of the inner cylinder 2. Each through hole 502 is connected to each flow channel 202 in a one-to-one correspondence. The structure of the stationary plate 5 will also be adjusted according to the change in the number of passages in the valve body. Specifically, for example... Figure 8As shown in Figure a, the stationary plate 5 is used in a straight-through valve. Its shape is a semi-circular sector with a central circular bushing, and the notch 201 represents the missing half of the semi-circular sector, with a 180° sector-shaped through hole 502 inside. As shown in Figure b, the stationary plate 5 is used in a three-way valve or a four-way valve. Its shape is a 240° sector with a central circular bushing, and the notch 201 represents the missing 120° sector, with two 120° sector-shaped through holes 502 inside. As shown in Figure c, the stationary plate 5 is used in a three-way valve. A four-way valve or a four-way valve has a central circular bushing with two symmetrically arranged 90° fan-shaped sections. The notch 201 has two 90° fan-shaped sections, each containing a 90° fan-shaped through hole 502. As shown in d, the stationary plate 5 is used in a five-way valve. It has a central circular bushing with two symmetrically arranged 144° fan-shaped sections. The notch 201 has two 72° fan-shaped sections, each containing two 72° fan-shaped through holes 502. The advantage of using a notched stationary plate 5 in this embodiment compared to a traditional circular stationary valve plate is that in the mass production of stationary plate 5 and moving plate 6, the sintering, grinding, and machining processes are time-consuming. For example, ceramic sintering can take several days. Generally, raw plates are arranged in batches on a fixture, which is then placed in a kiln or machine tool. The more raw plates placed on the fixture, the more finished products are obtained. Therefore, the processing quantity of the same batch has a significant impact on the overall cost. Figure 11 As shown, the stationary plate 5 with the first notch 501 is connected to... Figure 7 Compared to the perfectly circular stationary valve plate in the previous embodiment, the stationary plate 5 in this embodiment can more effectively utilize the first notch 501 to stagger the arrangement of the stationary plates 5 during mass production, so that the area occupied by the same number of stationary plates 5 is smaller, thereby greatly improving the mass production efficiency of the stationary plate 5 and reducing the cost.

[0040] exist Figure 8 In one embodiment shown, when one or two through holes 502 are formed in the stationary piece 5, a first notch 501 is formed on the stationary piece 5. For example, Figure 8 As shown in Figure a, the stationary plate 5 is used in a straight-through valve. Its shape is a semi-circular fan shape with a central circular bushing. The notch 201 is the missing half of the semi-circular fan shape, and a 180° fan-shaped through hole 502 is opened inside it. As shown in Figure b, the stationary plate 5 is used in a three-way valve or a four-way valve. Its shape is a 240° fan shape with a central circular bushing. The notch 201 is the missing 120° fan shape, and two 120° fan-shaped through holes 502 are opened inside it.

[0041] exist Figure 8 In one embodiment shown, when two or four through holes 502 are formed in the stationary plate 5, two first notches 501 are symmetrically formed on the stationary plate 5, and the two first notches 501 equally divide the two or four through holes 502 into two groups. For example, Figure 8 As shown in c, the stationary plate 5 is used in a three-way valve or a four-way valve. Its shape is a central circular bushing with two symmetrically arranged 90° fan-shaped sections. The notch 201 has two sections, which are also 90° fan-shaped sections. Each of the two fan-shaped sections has a 90° fan-shaped through hole 502. As shown in d, the stationary plate 5 is used in a five-way valve. Its shape is a central circular bushing with two symmetrically arranged 144° fan-shaped sections. The notch 201 has two sections, which are both 72° fan-shaped sections. Each of the two 144° fan-shaped sections has two 72° fan-shaped through holes 502.

[0042] like Figure 10 As shown, combined with Figure 9 This utility model provides a movable plate, used to cooperate with the stationary plate in any of the above embodiments. The movable plate 6 and the stationary plate 5 are in mirror-sealed contact on the surface away from the inner cylinder 2. The flow rate and on / off state of each passage in the valve body are adjusted by controlling the rotation angle of the movable plate 6. Simultaneously, at least one second notch 601 can be provided on the movable plate 6. When the movable plate 6 rotates to the position blocking the first notch 501, the second notch 601 is connected to at least one through hole 502. The function of the second notch 601 is: firstly, when the movable plate 6 rotates to completely close all the through holes 502 on the stationary plate 5, the second notch 601, the first notch 501, and the notch portion 201 completely overlap, effectively preventing blockage in the valve body; secondly, when the second notch 601 and the first notch 501 rotate coaxially and are offset, the movable plate 6 and the stationary plate 5 can form a shearing action to cut off easily damaged impurities entering the notch portion 201, thereby improving the anti-blocking performance of the valve body. The structure of the movable plate 6 will also be adjusted according to the number of passages in the valve body. Specifically, for example... Figure 10 As shown in Figure a, the movable piece 6 is used in a straight-through valve, and its shape is a semi-circular sector with a central circular bushing, with the notch 201 representing the missing half of the semi-circular sector; as shown in Figure b, the movable piece 6 is used in a three-way valve or a four-way valve, and its shape is a 240° sector with a central circular bushing, with the notch 201 representing the missing 120° sector; as shown in Figure c, the movable piece 6 is used in a three-way valve or a four-way valve, and its shape is a 270° sector with a central circular bushing, with the notch 201 representing a 90° sector; as shown in Figure d, the movable piece 6 is used in a five-way valve, and its shape is a 288° sector with a central circular bushing, with the notch 201 representing a 72° sector; as shown in Figure e, the movable piece 6 is also used in a five-way valve, and its shape is a central circular bushing with two symmetrically arranged 144° sectors, with two notches 201, both of which are 72° sectors. The movable piece 6 with the second notch 601 is then connected to... Figure 9 Compared to the perfectly round moving valve plate in the previous embodiment, the moving plate 6 in this embodiment can more effectively utilize the second notch 601 to stagger the arrangement of the moving plates 6 during mass production, so that the area occupied by the same number of moving plates 6 is smaller, thereby greatly improving the mass production efficiency of the moving plates 6 and reducing costs.

[0043] exist Figure 10 In one embodiment shown, when the stationary piece 5 has one, two, or four through holes 502, the moving piece 6 has a second notch 601. For example, Figure 10 As shown in Figure a, the movable piece 6 is used in a straight-through valve, and its shape is a semi-circular sector with a central circular bushing, with the notch 201 being the missing half of the semi-circular sector; as shown in Figure b, the movable piece 6 is used in a three-way valve or a four-way valve, and its shape is a 240° sector with a central circular bushing, with the notch 201 being the missing 120° sector; as shown in Figure c, the movable piece 6 is used in a three-way valve or a four-way valve, and its shape is a 270° sector with a central circular bushing, with the notch 201 being a 90° sector; as shown in Figure d, the movable piece 6 is used in a five-way valve, and its shape is a 288° sector with a central circular bushing, with the notch 201 being a 72° sector.

[0044] exist Figure 10 In one embodiment shown, when the stationary piece 5 has four through holes 502, the moving piece 6 has two symmetrical second notches 601. For example, Figure 10 As shown in Figure e, the moving piece 6 is also used in a five-way valve. Its shape is a circular bushing in the center with two 144° sector shapes arranged symmetrically in the center. The notch 201 has two notches, both of which are 72° sector shapes.

[0045] like Figure 6 As shown, combined with Figure 2 This utility model discloses a passage valve, employing the valve body of any of the above embodiments, and further including a stationary plate 5 and a moving plate 6. The stationary plate 5 is attached to the through surface of the inner cylinder 2, and the moving plate 6 is in mirror-sealed contact with the surface of the stationary plate 5 away from the inner cylinder 2. The stationary plate 5 and the moving plate 6 are coaxially arranged, and the moving plate 6 rotates relative to the axis of the stationary plate 5. The flow rate and on / off state of each passage of the valve body are adjusted by controlling the rotation angle of the moving plate 6. The stationary plate 5 and the moving plate 6 also adopt the configuration shown in any of the above embodiments, with a first notch 501 and a second notch 601 respectively formed on the stationary plate 5 and the moving plate 6. For example, Figure 6 As shown in (a), this embodiment is a vertical five-way valve; two notches 201 are symmetrically opened on the outer periphery of its inner cylinder 2, and two flow channels 202 with a diameter of 72° are opened on the left and right sides of the inner cylinder 2 respectively, so this type of valve has four water outlet passages; a second pipe 4 is connected to the end face of its valve body 1 as a water inlet passage; two 72° fan-shaped first notches 501 and two 72° fan-shaped second notches 601 are symmetrically opened on the stationary plate 5 and the moving plate 6 respectively.

[0046] In practical application, the channel valve of this embodiment has the following advantages over traditional channel valves: the inner cylinder 2 of the valve body of a traditional channel valve is generally a cylindrical core. (See reference...) Figure 3 As shown in (b), a blind hole area will be formed at the notch 201 of the inner cylinder 2 (see...). Figure 2 (b) The dotted line encloses the small fan-shaped area inside the inner cylinder 2. If some impurities that are difficult to cut off, such as stones, thick branches, or plastic film, enter the blind hole area with the water flow and get stuck between the first notch 501 and the second notch 601 of the relatively rotating stationary plate 5 and moving plate 6, the moving plate 6 will gradually squeeze and push the passage 100 on the outside of the impurities during the rotation. However, since the moving plate 6 cannot cut off the impurities, and the side of the blind hole area (the area shown by the dotted line) is surrounded, the impurities will get stuck in the blind hole area and prevent the moving plate 6 from continuing to rotate, thus causing a blockage. In this embodiment, a notch 201 is provided on the side of the inner cylinder 2. Therefore, when some impurities that are difficult to cut off enter the valve body with the water flow, they will initially be stuck between the first notch 501 and the second notch 601 of the stationary plate 5 and the moving plate 6. However, as the moving plate 6 continues to rotate, the moving plate 6 squeezes and pushes the impurities to the outside. At this time, since the notch 201 and the passage 100 are in an integral connected state and are not surrounded and separated, the impurities will eventually be squeezed out of the notch 201 as the moving plate 6 rotates, so that the moving plate 6 can continue to rotate, thereby avoiding the risk of blockage of the passage valve.

[0047] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A valve body, characterized in that, include: Valve housing (1), hollow inside; The inner cylinder (2) is disposed inside the valve body (1); At least one first pipe (3) is connected at one end to the inner cylinder (2) and extends outward through the valve housing (1); The inner wall of the valve housing (1) and the outer wall of the inner cylinder (2) form a passageway (100). The inner cylinder (2) has at least one flow channel (202) inside, and at least one axial end face of the inner cylinder (2) is through. The flow channel (202) is connected to the passage (100) through the through surface. At least one flow channel (202) is connected to at least one first pipe (3) in a one-to-one correspondence. At least one notch (201) is provided on the outer circumferential surface of the inner cylinder (2), and the notch (201) is part of the passage (100).

2. The valve body according to claim 1, characterized in that: The inner cylinder (2) has two flow channels (202); the first pipe (3) has two and is connected to the two flow channels (202) in a one-to-one correspondence; the outer circumferential surface of the inner cylinder (2) has a notch (201) or two notches (201) symmetrically opened.

3. A valve body according to claim 1, characterized in that: The inner cylinder (2) has four flow channels (202) inside; the first pipe (3) has four and is connected to the four flow channels (202) in a one-to-one correspondence; the outer circumference of the inner cylinder (2) has two symmetrically opened notches (201), and the two notches (201) divide the four flow channels (202) into two groups equally.

4. A valve body according to any one of claims 1 to 3, characterized in that, Also includes: The second pipe (4) is disposed on the outer peripheral wall of the valve body (1) and communicates with the interior of the valve body (1). The axial direction of the second pipe (4) is in the same plane as the axial direction of at least one first pipe (3), and the connecting end of the second pipe (4) is aligned with the notch (201) inside the valve body (1).

5. A still sheet, characterized in that: For use in conjunction with the valve body as described in any one of claims 1 to 4, the stationary plate (5) is attached to the through surface of the inner cylinder (2); At least one first notch (501) is provided on the stationary plate (5), and the first notch (501) is correspondingly provided with the notch portion (201); The stationary plate (5) has through holes (502) inside, and the number of through holes (502) is the same as the number of flow channels (202) that are connected to the through surface of the inner cylinder (2).

6. A still sheet according to claim 5, characterized in that: When one or two through holes (502) are opened in the stationary piece (5), a first notch (501) is opened on the stationary piece (5).

7. A still sheet according to claim 5, characterized in that: When two or four through holes (502) are opened in the stationary plate (5), two first notches (501) are symmetrically opened on the stationary plate (5), and the two first notches (501) equally divide the two or four through holes (502) into two groups.

8. A movable piece, characterized in that: Used to cooperate with the stationary plate as described in any one of claims 5 to 7, wherein the moving plate (6) and the stationary plate (5) are in mirror-sealed contact on the surface away from the inner cylinder (2); the moving plate (6) is provided with at least one second notch (601), and when the moving plate (6) is rotated to the position of blocking the first notch (501), the second notch (601) is connected to at least one through hole (502).

9. A moving piece according to claim 8, characterized in that: When one, two, or four through holes (502) are opened in the stationary piece (5), a second notch (601) is opened on the moving piece (6).

10. A movable piece according to claim 8, characterized in that: When the stationary piece (5) has four through holes (502), the moving piece (6) has two second notches (601) symmetrically opened.

11. A passage valve, characterized in that: The valve body according to any one of claims 1 to 4 further includes a stationary plate (5) and a moving plate (6). The stationary plate (5) is attached to the through surface of the inner cylinder (2). The moving plate (6) and the stationary plate (5) are in mirror-sealed contact with each other on the surface away from the inner cylinder (2). The stationary plate (5) and the moving plate (6) are coaxially arranged. The moving plate (6) rotates relative to the stationary plate (5).

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